[GIT PULL 00/19] perf/core improvements and fixes

[GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit 36e674a05164cdbb9d4a5b1b0b279fabae6c13bd:

  Merge tag 'perf-core-for-mingo-20160823' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2016-08-24 11:08:10 +0200)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-20160901

for you to fetch changes up to 6243b9dc4c991fe8bdc53a0e029908aef3ddb101:

  perf probe: Move dwarf specific functions to dwarf-aux.c (2016-09-01 12:42:26 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

User visible:

- Support generating cross arch probes, i.e. if you specify a vmlinux
  file for different arch than the one in the host machine,

	 $ perf probe --definition function_name args

  will generate the probe definition string needed to append to the
  target machine /sys/kernel/debug/tracing/kprobes_events file, using
  scripting (Masami Hiramatsu).

- Make 'perf probe' skip the function prologue in uprobes if program
  compiled without optimization, using the same strategy as gdb and
  systemtap uses, fixing a bug where:

	$ perf probe -x ./test 'foo i'

  When 'foo(42)' was used on the "./test" executable would produce i=0
  instead of the expected i=42 (Ravi Bangoria)

- Demangle symbols for synthesized @plt entries too (Millian Wolff)

Documentation:

- Show default report configuration in 'perf config' example
  and docs (Millian Wolff)

Infrastructure:

- Make 'perf test vmlinux' tolerate the symbol aliasing pruning done when
  loading kallsyms and vmlinux (Arnaldo Carvalho de Melo)

- Improve output of 'perf test vmlinux' test, to help identify on the verbose
  output which lines are warning and which are errors (Arnaldo Carvalho de Melo)

- Prep work to stop having to pass symbol_filter_t to lots of functions,
  simplifying symtab loading routines (Arnaldo Carvalho de Melo)

- Honor symbol_conf.allow_aliases when loading kallsyms as well, it was using
  it only when loading vmlinux files (Arnaldo Carvalho de Melo)

- Fixup symbol->end before doing alias pruning when loading symbol tables
  (Arnaldo Carvalho de Melo)

- Fix error handling of lzma kernel module decompression (Shawn Lin)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Arnaldo Carvalho de Melo (8):
      perf annotate: Initialize the priv are in symbol__new()
      perf symbols: Rename ->ignore to ->idle
      perf probe: Do not use map_load filters for function
      perf test vmlinux: Clarify which -v lines are errors or warning
      perf test vmlinux: Avoid printing headers for empty lists
      perf test vmlinux: Tolerate symbol aliases
      perf symbols: Check symbol_conf.allow_aliases for kallsyms loading too
      perf symbols: Fixup symbol sizes before picking best ones

Masami Hiramatsu (5):
      perf probe: Remove unused tracing_dir variable
      perf probe: Show trace event definition
      perf probe: Ignore vmlinux buildid if offline kernel is given
      perf probe: Support probing on offline cross-arch binary
      perf probe: Ignore vmlinux Build-id when offline vmlinux given

Milian Wolff (2):
      perf symbols: Demangle symbols for synthesized @plt entries.
      perf config: Show default report configuration in example and docs

Ravi Bangoria (3):
      perf probe: Add helper function to check if probe with variable
      perf uprobe: Skip prologue if program compiled without optimization
      perf probe: Move dwarf specific functions to dwarf-aux.c

Shawn Lin (1):
      perf tools: Fix error handling of lzma decompression

 tools/perf/Documentation/perf-config.txt           |   8 +
 tools/perf/Documentation/perf-probe.txt            |   9 ++
 tools/perf/Documentation/perfconfig.example        |   9 ++
 tools/perf/arch/arm/include/dwarf-regs-table.h     |   9 ++
 tools/perf/arch/arm64/include/dwarf-regs-table.h   |  13 ++
 tools/perf/arch/powerpc/include/dwarf-regs-table.h |  27 ++++
 tools/perf/arch/s390/include/dwarf-regs-table.h    |   8 +
 tools/perf/arch/sh/include/dwarf-regs-table.h      |  25 +++
 tools/perf/arch/sparc/include/dwarf-regs-table.h   |  18 +++
 tools/perf/arch/x86/include/dwarf-regs-table.h     |  14 ++
 tools/perf/arch/xtensa/include/dwarf-regs-table.h  |   8 +
 tools/perf/builtin-annotate.c                      |   7 +-
 tools/perf/builtin-probe.c                         |  35 +++-
 tools/perf/builtin-report.c                        |   6 +-
 tools/perf/builtin-top.c                           |   8 +-
 tools/perf/tests/vmlinux-kallsyms.c                |  44 +++--
 tools/perf/util/Build                              |   1 +
 tools/perf/util/annotate.c                         |   7 -
 tools/perf/util/annotate.h                         |   1 -
 tools/perf/util/dwarf-aux.c                        | 179 +++++++++++++++++++++
 tools/perf/util/dwarf-aux.h                        |   8 +
 tools/perf/util/dwarf-regs.c                       |  59 +++++++
 tools/perf/util/evsel_fprintf.c                    |   4 +-
 tools/perf/util/include/dwarf-regs.h               |   6 +
 tools/perf/util/lzma.c                             |  15 +-
 tools/perf/util/probe-event.c                      | 101 +++++++++---
 tools/perf/util/probe-event.h                      |   3 +
 tools/perf/util/probe-file.c                       |   5 +-
 tools/perf/util/probe-finder.c                     |  60 +++++--
 tools/perf/util/probe-finder.h                     |   1 +
 tools/perf/util/symbol-elf.c                       |  86 ++++++----
 tools/perf/util/symbol.c                           |  30 +++-
 tools/perf/util/symbol.h                           |   5 +-
 33 files changed, 698 insertions(+), 121 deletions(-)
 create mode 100644 tools/perf/arch/arm/include/dwarf-regs-table.h
 create mode 100644 tools/perf/arch/arm64/include/dwarf-regs-table.h
 create mode 100644 tools/perf/arch/powerpc/include/dwarf-regs-table.h
 create mode 100644 tools/perf/arch/s390/include/dwarf-regs-table.h
 create mode 100644 tools/perf/arch/sh/include/dwarf-regs-table.h
 create mode 100644 tools/perf/arch/sparc/include/dwarf-regs-table.h
 create mode 100644 tools/perf/arch/x86/include/dwarf-regs-table.h
 create mode 100644 tools/perf/arch/xtensa/include/dwarf-regs-table.h
 create mode 100644 tools/perf/util/dwarf-regs.c

Build stats:

  1 alpine:3.4: Ok
  2 android-ndk:r12b-arm: Ok
  3 archlinux:latest: Ok
  4 centos:5: Ok
  5 centos:6: Ok
  6 centos:7: Ok
  7 debian:7: Ok
  8 debian:8: Ok
  9 fedora:20: Ok
 10 fedora:21: Ok
 11 fedora:22: Ok
 12 fedora:23: Ok
 13 fedora:24: Ok
 14 fedora:24-x-ARC-uClibc: Ok
 15 fedora:rawhide: Ok
 16 mageia:5: Ok
 17 opensuse:13.2: Ok
 18 opensuse:42.1: Ok
 19 opensuse:tumbleweed: Ok
 20 ubuntu:12.04.5: Ok
 21 ubuntu:14.04.4: Ok
 22 ubuntu:15.10: Ok
 23 ubuntu:16.04: Ok
 24 ubuntu:16.04-x-arm: Ok
 25 ubuntu:16.04-x-arm64: Ok
 26 ubuntu:16.04-x-powerpc64: Ok
 27 ubuntu:16.04-x-powerpc64el: Ok
 28 ubuntu:16.10: Ok
 29 ubuntu:16.10-x-s390: Ok

[PATCH 01/19] perf probe: Remove unused tracing_dir variable

[Arnaldo Carvalho de Melo]

From: Masami Hiramatsu <mhiramat@kernel.org>

Remove unused tracing_dir variable from open_probe_events().

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/147201827792.5713.4165387506020511920.stgit@devbox
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/probe-file.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/tools/perf/util/probe-file.c b/tools/perf/util/probe-file.c
index 697ef66bff91..6f931e442f14 100644
--- a/tools/perf/util/probe-file.c
+++ b/tools/perf/util/probe-file.c
@@ -73,11 +73,10 @@ static void print_both_open_warning(int kerr, int uerr)
 static int open_probe_events(const char *trace_file, bool readwrite)
 {
 	char buf[PATH_MAX];
-	const char *tracing_dir = "";
 	int ret;
 
-	ret = e_snprintf(buf, PATH_MAX, "%s/%s%s",
-			 tracing_path, tracing_dir, trace_file);
+	ret = e_snprintf(buf, PATH_MAX, "%s/%s",
+			 tracing_path, trace_file);
 	if (ret >= 0) {
 		pr_debug("Opening %s write=%d\n", buf, readwrite);
 		if (readwrite && !probe_event_dry_run)
-- 
2.7.4

[PATCH 02/19] perf tools: Fix error handling of lzma decompression

[Arnaldo Carvalho de Melo]

From: Shawn Lin <shawn.lin@rock-chips.com>

lzma_decompress_to_file() never actually closes the file pointer, let's
fix it.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1471766253-1964-1-git-send-email-shawn.lin@rock-chips.com
[ Make err = -1, the common case, set it to 0 before the error label ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/lzma.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/tools/perf/util/lzma.c b/tools/perf/util/lzma.c
index 95a1acb61245..9ddea5cecd94 100644
--- a/tools/perf/util/lzma.c
+++ b/tools/perf/util/lzma.c
@@ -29,6 +29,7 @@ int lzma_decompress_to_file(const char *input, int output_fd)
 	lzma_action action = LZMA_RUN;
 	lzma_stream strm   = LZMA_STREAM_INIT;
 	lzma_ret ret;
+	int err = -1;
 
 	u8 buf_in[BUFSIZE];
 	u8 buf_out[BUFSIZE];
@@ -45,7 +46,7 @@ int lzma_decompress_to_file(const char *input, int output_fd)
 	if (ret != LZMA_OK) {
 		pr_err("lzma: lzma_stream_decoder failed %s (%d)\n",
 			lzma_strerror(ret), ret);
-		return -1;
+		goto err_fclose;
 	}
 
 	strm.next_in   = NULL;
@@ -60,7 +61,7 @@ int lzma_decompress_to_file(const char *input, int output_fd)
 
 			if (ferror(infile)) {
 				pr_err("lzma: read error: %s\n", strerror(errno));
-				return -1;
+				goto err_fclose;
 			}
 
 			if (feof(infile))
@@ -74,7 +75,7 @@ int lzma_decompress_to_file(const char *input, int output_fd)
 
 			if (writen(output_fd, buf_out, write_size) != write_size) {
 				pr_err("lzma: write error: %s\n", strerror(errno));
-				return -1;
+				goto err_fclose;
 			}
 
 			strm.next_out  = buf_out;
@@ -83,13 +84,15 @@ int lzma_decompress_to_file(const char *input, int output_fd)
 
 		if (ret != LZMA_OK) {
 			if (ret == LZMA_STREAM_END)
-				return 0;
+				break;
 
 			pr_err("lzma: failed %s\n", lzma_strerror(ret));
-			return -1;
+			goto err_fclose;
 		}
 	}
 
+	err = 0;
+err_fclose:
 	fclose(infile);
-	return 0;
+	return err;
 }
-- 
2.7.4

[PATCH 06/19] perf symbols: Demangle symbols for synthesized @plt entries.

[Arnaldo Carvalho de Melo]

From: Milian Wolff <milian.wolff@kdab.com>

The symbols in the synthesized @plt entries where not demangled before,
i.e. we could end up with entries such as:

    $ perf report
    Samples: 7K of event 'cycles:ppp', Event count (approx.): 6223833141
    Children      Self  Command          Shared Object           Symbol
    -   93.63%    28.89%  lab_mandelbrot   lab_mandelbrot        [.] main
        - 73.81% main
            - 33.57% hypot
              27.76% __hypot_finite
              15.97% __muldc3
               2.90% __muldc3@plt
               2.40% _ZNK6QImage6heightEv@plt
             + 2.14% QColor::rgb
               1.94% _ZNK6QImage5widthEv@plt
               1.92% cabs@plt

This patch remedies this issue by also applying demangling to the
synthesized symbols. The output for the above is now:

    $ perf report
    Samples: 7K of event 'cycles:ppp', Event count (approx.): 6223833141
    Children      Self  Command          Shared Object           Symbol
    -   93.63%    28.89%  lab_mandelbrot   lab_mandelbrot        [.] main
        - 73.81% main
            - 33.57% hypot
              27.76% __hypot_finite
              15.97% __muldc3
               2.90% __muldc3@plt
               2.40% QImage::height() const@plt
             + 2.14% QColor::rgb
               1.94% QImage::width() const@plt
               1.92% cabs@plt

Signed-off-by: Milian Wolff <milian.wolff@kdab.com>
LPU-Reference: 20160830114102.30863-1-milian.wolff@kdab.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/symbol-elf.c | 81 ++++++++++++++++++++++++++++----------------
 1 file changed, 52 insertions(+), 29 deletions(-)

diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c
index a811c13a74d6..fbe31eff1beb 100644
--- a/tools/perf/util/symbol-elf.c
+++ b/tools/perf/util/symbol-elf.c
@@ -206,6 +206,37 @@ Elf_Scn *elf_section_by_name(Elf *elf, GElf_Ehdr *ep,
 	return NULL;
 }
 
+static bool want_demangle(bool is_kernel_sym)
+{
+	return is_kernel_sym ? symbol_conf.demangle_kernel : symbol_conf.demangle;
+}
+
+static char *demangle_sym(struct dso *dso, int kmodule, const char *elf_name)
+{
+	int demangle_flags = verbose ? (DMGL_PARAMS | DMGL_ANSI) : DMGL_NO_OPTS;
+	char *demangled = NULL;
+
+	/*
+	 * We need to figure out if the object was created from C++ sources
+	 * DWARF DW_compile_unit has this, but we don't always have access
+	 * to it...
+	 */
+	if (!want_demangle(dso->kernel || kmodule))
+	    return demangled;
+
+	demangled = bfd_demangle(NULL, elf_name, demangle_flags);
+	if (demangled == NULL)
+		demangled = java_demangle_sym(elf_name, JAVA_DEMANGLE_NORET);
+	else if (rust_is_mangled(demangled))
+		/*
+		    * Input to Rust demangling is the BFD-demangled
+		    * name which it Rust-demangles in place.
+		    */
+		rust_demangle_sym(demangled);
+
+	return demangled;
+}
+
 #define elf_section__for_each_rel(reldata, pos, pos_mem, idx, nr_entries) \
 	for (idx = 0, pos = gelf_getrel(reldata, 0, &pos_mem); \
 	     idx < nr_entries; \
@@ -301,11 +332,19 @@ int dso__synthesize_plt_symbols(struct dso *dso, struct symsrc *ss, struct map *
 
 		elf_section__for_each_rela(reldata, pos, pos_mem, idx,
 					   nr_rel_entries) {
+			const char *elf_name = NULL;
+			char *demangled = NULL;
 			symidx = GELF_R_SYM(pos->r_info);
 			plt_offset += shdr_plt.sh_entsize;
 			gelf_getsym(syms, symidx, &sym);
+
+			elf_name = elf_sym__name(&sym, symstrs);
+			demangled = demangle_sym(dso, 0, elf_name);
+			if (demangled != NULL)
+				elf_name = demangled;
 			snprintf(sympltname, sizeof(sympltname),
-				 "%s@plt", elf_sym__name(&sym, symstrs));
+				 "%s@plt", elf_name);
+			free(demangled);
 
 			f = symbol__new(plt_offset, shdr_plt.sh_entsize,
 					STB_GLOBAL, sympltname);
@@ -323,11 +362,19 @@ int dso__synthesize_plt_symbols(struct dso *dso, struct symsrc *ss, struct map *
 		GElf_Rel pos_mem, *pos;
 		elf_section__for_each_rel(reldata, pos, pos_mem, idx,
 					  nr_rel_entries) {
+			const char *elf_name = NULL;
+			char *demangled = NULL;
 			symidx = GELF_R_SYM(pos->r_info);
 			plt_offset += shdr_plt.sh_entsize;
 			gelf_getsym(syms, symidx, &sym);
+
+			elf_name = elf_sym__name(&sym, symstrs);
+			demangled = demangle_sym(dso, 0, elf_name);
+			if (demangled != NULL)
+				elf_name = demangled;
 			snprintf(sympltname, sizeof(sympltname),
-				 "%s@plt", elf_sym__name(&sym, symstrs));
+				 "%s@plt", elf_name);
+			free(demangled);
 
 			f = symbol__new(plt_offset, shdr_plt.sh_entsize,
 					STB_GLOBAL, sympltname);
@@ -775,11 +822,6 @@ static u64 ref_reloc(struct kmap *kmap)
 	return 0;
 }
 
-static bool want_demangle(bool is_kernel_sym)
-{
-	return is_kernel_sym ? symbol_conf.demangle_kernel : symbol_conf.demangle;
-}
-
 void __weak arch__sym_update(struct symbol *s __maybe_unused,
 		GElf_Sym *sym __maybe_unused) { }
 
@@ -1070,29 +1112,10 @@ int dso__load_sym(struct dso *dso, struct map *map,
 			sym.st_value -= shdr.sh_addr - shdr.sh_offset;
 		}
 new_symbol:
-		/*
-		 * We need to figure out if the object was created from C++ sources
-		 * DWARF DW_compile_unit has this, but we don't always have access
-		 * to it...
-		 */
-		if (want_demangle(dso->kernel || kmodule)) {
-			int demangle_flags = DMGL_NO_OPTS;
-			if (verbose)
-				demangle_flags = DMGL_PARAMS | DMGL_ANSI;
-
-			demangled = bfd_demangle(NULL, elf_name, demangle_flags);
-			if (demangled == NULL)
-				demangled = java_demangle_sym(elf_name, JAVA_DEMANGLE_NORET);
-			else if (rust_is_mangled(demangled))
-				/*
-				 * Input to Rust demangling is the BFD-demangled
-				 * name which it Rust-demangles in place.
-				 */
-				rust_demangle_sym(demangled);
+		demangled = demangle_sym(dso, kmodule, elf_name);
+		if (demangled != NULL)
+			elf_name = demangled;
 
-			if (demangled != NULL)
-				elf_name = demangled;
-		}
 		f = symbol__new(sym.st_value, sym.st_size,
 				GELF_ST_BIND(sym.st_info), elf_name);
 		free(demangled);
-- 
2.7.4

[PATCH 07/19] perf config: Show default report configuration in example and docs

[Arnaldo Carvalho de Melo]

From: Milian Wolff <milian.wolff@kdab.com>

Signed-off-by: Milian Wolff <milian.wolff@kdab.com>
LPU-Reference: 20160830134106.21240-2-milian.wolff@kdab.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Documentation/perf-config.txt    | 8 ++++++++
 tools/perf/Documentation/perfconfig.example | 9 +++++++++
 2 files changed, 17 insertions(+)

diff --git a/tools/perf/Documentation/perf-config.txt b/tools/perf/Documentation/perf-config.txt
index 68c89190e79c..cb081ac59fd1 100644
--- a/tools/perf/Documentation/perf-config.txt
+++ b/tools/perf/Documentation/perf-config.txt
@@ -110,6 +110,14 @@ Given a $HOME/.perfconfig like this:
 		order = caller
 		sort-key = function
 
+	[report]
+		# Defaults
+		sort-order = comm,dso,symbol
+		percent-limit = 0
+		queue-size = 0
+		children = true
+		group = true
+
 Variables
 ~~~~~~~~~
 
diff --git a/tools/perf/Documentation/perfconfig.example b/tools/perf/Documentation/perfconfig.example
index 1d8d5bc4cd2d..2b477c1d1efe 100644
--- a/tools/perf/Documentation/perfconfig.example
+++ b/tools/perf/Documentation/perfconfig.example
@@ -27,3 +27,12 @@
 	use_offset = true
 	jump_arrows = true
 	show_nr_jumps = false
+
+[report]
+
+	# Defaults
+	sort-order = comm,dso,symbol
+	percent-limit = 0
+	queue-size = 0
+	children = true
+	group = true
-- 
2.7.4

[PATCH 08/19] perf probe: Show trace event definition

[Arnaldo Carvalho de Melo]

From: Masami Hiramatsu <mhiramat@kernel.org>

Add --definition/-D option for showing the trace-event definition in
stdout. This can be useful in debugging or combined with a shell script.

e.g.
  ----
  # perf probe --definition 'do_sys_open $params'
  p:probe/do_sys_open _text+2261728 dfd=%di:s32 filename=%si:u64 flags=%dx:s32 mode=%cx:u16
  ----

Suggested-and-Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/147214226712.23638.2240534040014013658.stgit@devbox
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Documentation/perf-probe.txt |  7 +++++
 tools/perf/builtin-probe.c              | 26 ++++++++++++++-----
 tools/perf/util/probe-event.c           | 46 +++++++++++++++++++++++++++++++++
 tools/perf/util/probe-event.h           |  1 +
 4 files changed, 73 insertions(+), 7 deletions(-)

diff --git a/tools/perf/Documentation/perf-probe.txt b/tools/perf/Documentation/perf-probe.txt
index f37d123d5dac..56db4d40d27e 100644
--- a/tools/perf/Documentation/perf-probe.txt
+++ b/tools/perf/Documentation/perf-probe.txt
@@ -21,6 +21,8 @@ or
 'perf probe' [options] --vars='PROBEPOINT'
 or
 'perf probe' [options] --funcs
+or
+'perf probe' [options] --definition='PROBE' [...]
 
 DESCRIPTION
 -----------
@@ -96,6 +98,11 @@ OPTIONS
 	can also list functions in a user space executable / shared library.
 	This also can accept a FILTER rule argument.
 
+-D::
+--definition=::
+	Show trace-event definition converted from given probe-event instead
+	of write it into tracing/[k,u]probe_events.
+
 --filter=FILTER::
 	(Only for --vars and --funcs) Set filter. FILTER is a combination of glob
 	pattern, see FILTER PATTERN for detail.
diff --git a/tools/perf/builtin-probe.c b/tools/perf/builtin-probe.c
index ee5b42173ba3..7a3d8c47ed29 100644
--- a/tools/perf/builtin-probe.c
+++ b/tools/perf/builtin-probe.c
@@ -326,6 +326,11 @@ static int perf_add_probe_events(struct perf_probe_event *pevs, int npevs)
 	if (ret < 0)
 		goto out_cleanup;
 
+	if (params.command == 'D') {	/* it shows definition */
+		ret = show_probe_trace_events(pevs, npevs);
+		goto out_cleanup;
+	}
+
 	ret = apply_perf_probe_events(pevs, npevs);
 	if (ret < 0)
 		goto out_cleanup;
@@ -454,6 +459,14 @@ out:
 	return ret;
 }
 
+#ifdef HAVE_DWARF_SUPPORT
+#define PROBEDEF_STR	\
+	"[EVENT=]FUNC[@SRC][+OFF|%return|:RL|;PT]|SRC:AL|SRC;PT [[NAME=]ARG ...]"
+#else
+#define PROBEDEF_STR	"[EVENT=]FUNC[+OFF|%return] [[NAME=]ARG ...]"
+#endif
+
+
 static int
 __cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused)
 {
@@ -479,13 +492,7 @@ __cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused)
 			     opt_set_filter_with_command, DEFAULT_LIST_FILTER),
 	OPT_CALLBACK('d', "del", NULL, "[GROUP:]EVENT", "delete a probe event.",
 		     opt_set_filter_with_command),
-	OPT_CALLBACK('a', "add", NULL,
-#ifdef HAVE_DWARF_SUPPORT
-		"[EVENT=]FUNC[@SRC][+OFF|%return|:RL|;PT]|SRC:AL|SRC;PT"
-		" [[NAME=]ARG ...]",
-#else
-		"[EVENT=]FUNC[+OFF|%return] [[NAME=]ARG ...]",
-#endif
+	OPT_CALLBACK('a', "add", NULL, PROBEDEF_STR,
 		"probe point definition, where\n"
 		"\t\tGROUP:\tGroup name (optional)\n"
 		"\t\tEVENT:\tEvent name\n"
@@ -503,6 +510,9 @@ __cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused)
 		"\t\tARG:\tProbe argument (kprobe-tracer argument format.)\n",
 #endif
 		opt_add_probe_event),
+	OPT_CALLBACK('D', "definition", NULL, PROBEDEF_STR,
+		"Show trace event definition of given traceevent for k/uprobe_events.",
+		opt_add_probe_event),
 	OPT_BOOLEAN('f', "force", &probe_conf.force_add, "forcibly add events"
 		    " with existing name"),
 	OPT_CALLBACK('L', "line", NULL,
@@ -548,6 +558,7 @@ __cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused)
 
 	set_option_flag(options, 'a', "add", PARSE_OPT_EXCLUSIVE);
 	set_option_flag(options, 'd', "del", PARSE_OPT_EXCLUSIVE);
+	set_option_flag(options, 'D', "definition", PARSE_OPT_EXCLUSIVE);
 	set_option_flag(options, 'l', "list", PARSE_OPT_EXCLUSIVE);
 #ifdef HAVE_DWARF_SUPPORT
 	set_option_flag(options, 'L', "line", PARSE_OPT_EXCLUSIVE);
@@ -644,6 +655,7 @@ __cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused)
 		}
 		break;
 	case 'a':
+	case 'D':
 		/* Ensure the last given target is used */
 		if (params.target && !params.target_used) {
 			pr_err("  Error: -x/-m must follow the probe definitions.\n");
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 0bed2ee16292..4a49cb8ce7ab 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -3207,6 +3207,52 @@ int convert_perf_probe_events(struct perf_probe_event *pevs, int npevs)
 	return 0;
 }
 
+static int show_probe_trace_event(struct probe_trace_event *tev)
+{
+	char *buf = synthesize_probe_trace_command(tev);
+
+	if (!buf) {
+		pr_debug("Failed to synthesize probe trace event.\n");
+		return -EINVAL;
+	}
+
+	/* Showing definition always go stdout */
+	printf("%s\n", buf);
+	free(buf);
+
+	return 0;
+}
+
+int show_probe_trace_events(struct perf_probe_event *pevs, int npevs)
+{
+	struct strlist *namelist = strlist__new(NULL, NULL);
+	struct probe_trace_event *tev;
+	struct perf_probe_event *pev;
+	int i, j, ret = 0;
+
+	if (!namelist)
+		return -ENOMEM;
+
+	for (j = 0; j < npevs && !ret; j++) {
+		pev = &pevs[j];
+		for (i = 0; i < pev->ntevs && !ret; i++) {
+			tev = &pev->tevs[i];
+			/* Skip if the symbol is out of .text or blacklisted */
+			if (!tev->point.symbol && !pev->uprobes)
+				continue;
+
+			/* Set new name for tev (and update namelist) */
+			ret = probe_trace_event__set_name(tev, pev,
+							  namelist, true);
+			if (!ret)
+				ret = show_probe_trace_event(tev);
+		}
+	}
+	strlist__delete(namelist);
+
+	return ret;
+}
+
 int apply_perf_probe_events(struct perf_probe_event *pevs, int npevs)
 {
 	int i, ret = 0;
diff --git a/tools/perf/util/probe-event.h b/tools/perf/util/probe-event.h
index f4f45db77c1c..62094082d940 100644
--- a/tools/perf/util/probe-event.h
+++ b/tools/perf/util/probe-event.h
@@ -147,6 +147,7 @@ int line_range__init(struct line_range *lr);
 int add_perf_probe_events(struct perf_probe_event *pevs, int npevs);
 int convert_perf_probe_events(struct perf_probe_event *pevs, int npevs);
 int apply_perf_probe_events(struct perf_probe_event *pevs, int npevs);
+int show_probe_trace_events(struct perf_probe_event *pevs, int npevs);
 void cleanup_perf_probe_events(struct perf_probe_event *pevs, int npevs);
 int del_perf_probe_events(struct strfilter *filter);
 
-- 
2.7.4

[PATCH 12/19] perf test vmlinux: Clarify which -v lines are errors or warning

[Arnaldo Carvalho de Melo]

From: Arnaldo Carvalho de Melo <acme@redhat.com>

When the 'perf test -v vmlinux' test fails, it is not clear which of the
lines are errors or warnings, clarify that adding ERR/WARN prefixes:

  # perf test -F -v 1
   1: vmlinux symtab matches kallsyms                          :
  --- start ---
  Looking at the vmlinux_path (8 entries long)
  Using /lib/modules/4.8.0-rc4+/build/vmlinux for symbols
  ERR : 0xffffffffb7001000: diff name v: xen_hypercall_set_trap_table k: hypercall_page
  WARN: 0xffffffffb7077970: diff end addr for aesni_gcm_dec v: 0xffffffffb707a2f2 k: 0xffffffffb7077a02
  WARN: 0xffffffffb707a300: diff end addr for aesni_gcm_enc v: 0xffffffffb707cc03 k: 0xffffffffb707a392
  WARN: 0xffffffffb707f950: diff end addr for aesni_gcm_enc_avx_gen2 v: 0xffffffffb7084ef6 k: 0xffffffffb707f9c3
  WARN: 0xffffffffb7084f00: diff end addr for aesni_gcm_dec_avx_gen2 v: 0xffffffffb708a691 k: 0xffffffffb7084f73
  WARN: 0xffffffffb708aa10: diff end addr for aesni_gcm_enc_avx_gen4 v: 0xffffffffb708f844 k: 0xffffffffb708aa83
  WARN: 0xffffffffb708f850: diff end addr for aesni_gcm_dec_avx_gen4 v: 0xffffffffb709486f k: 0xffffffffb708f8c3
  ERR : 0xffffffffb71a6e50: diff name v: perf_pmu_commit_txn.part.98 k: perf_pmu_cancel_txn.part.97
  ERR : 0xffffffffb752e480: diff name v: wakeup_expire_count_show.part.5 k: wakeup_active_count_show.part.7
  ERR : 0xffffffffb76e8d00: diff name v: phys_switch_id_show.part.11 k: phys_port_name_show.part.12
  WARN: Maps only in vmlinux:
   ffffffffb7d7d000-ffffffffb7eeaac8 117d000 [kernel].init.text
   ffffffffb7eeaac8-ffffffffc03ad000 12eaac8 [kernel].exit.text
  WARN: Maps in vmlinux with a different name in kallsyms:
  WARN: Maps only in kallsyms:
  ---- end ----
  vmlinux symtab matches kallsyms: FAILED!
  #

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-n5ml8m7y9x8kzvxt09ipku88@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/tests/vmlinux-kallsyms.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/tools/perf/tests/vmlinux-kallsyms.c b/tools/perf/tests/vmlinux-kallsyms.c
index e63abab7d5a1..6bd5bf980de2 100644
--- a/tools/perf/tests/vmlinux-kallsyms.c
+++ b/tools/perf/tests/vmlinux-kallsyms.c
@@ -143,7 +143,7 @@ next_pair:
 				 */
 				s64 skew = mem_end - UM(pair->end);
 				if (llabs(skew) >= page_size)
-					pr_debug("%#" PRIx64 ": diff end addr for %s v: %#" PRIx64 " k: %#" PRIx64 "\n",
+					pr_debug("WARN: %#" PRIx64 ": diff end addr for %s v: %#" PRIx64 " k: %#" PRIx64 "\n",
 						 mem_start, sym->name, mem_end,
 						 UM(pair->end));
 
@@ -161,15 +161,15 @@ next_pair:
 					if (UM(pair->start) == mem_start)
 						goto next_pair;
 
-					pr_debug("%#" PRIx64 ": diff name v: %s k: %s\n",
+					pr_debug("ERR : %#" PRIx64 ": diff name v: %s k: %s\n",
 						 mem_start, sym->name, pair->name);
 				} else {
-					pr_debug("%#" PRIx64 ": diff name v: %s k: %s\n",
+					pr_debug("ERR : %#" PRIx64 ": diff name v: %s k: %s\n",
 						 mem_start, sym->name, first_pair->name);
 				}
 			}
 		} else
-			pr_debug("%#" PRIx64 ": %s not on kallsyms\n",
+			pr_debug("ERR : %#" PRIx64 ": %s not on kallsyms\n",
 				 mem_start, sym->name);
 
 		err = -1;
@@ -178,7 +178,7 @@ next_pair:
 	if (!verbose)
 		goto out;
 
-	pr_info("Maps only in vmlinux:\n");
+	pr_info("WARN: Maps only in vmlinux:\n");
 
 	for (map = maps__first(maps); map; map = map__next(map)) {
 		struct map *
@@ -198,7 +198,7 @@ next_pair:
 			map__fprintf(map, stderr);
 	}
 
-	pr_info("Maps in vmlinux with a different name in kallsyms:\n");
+	pr_info("WARN: Maps in vmlinux with a different name in kallsyms:\n");
 
 	for (map = maps__first(maps); map; map = map__next(map)) {
 		struct map *pair;
@@ -212,17 +212,17 @@ next_pair:
 
 		if (pair->start == mem_start) {
 			pair->priv = 1;
-			pr_info(" %" PRIx64 "-%" PRIx64 " %" PRIx64 " %s in kallsyms as",
+			pr_info("WARN: %" PRIx64 "-%" PRIx64 " %" PRIx64 " %s in kallsyms as",
 				map->start, map->end, map->pgoff, map->dso->name);
 			if (mem_end != pair->end)
-				pr_info(":\n*%" PRIx64 "-%" PRIx64 " %" PRIx64,
+				pr_info(":\nWARN: *%" PRIx64 "-%" PRIx64 " %" PRIx64,
 					pair->start, pair->end, pair->pgoff);
 			pr_info(" %s\n", pair->dso->name);
 			pair->priv = 1;
 		}
 	}
 
-	pr_info("Maps only in kallsyms:\n");
+	pr_info("WARN: Maps only in kallsyms:\n");
 
 	maps = &kallsyms.kmaps.maps[type];
 
-- 
2.7.4

[PATCH 13/19] perf test vmlinux: Avoid printing headers for empty lists

[Arnaldo Carvalho de Melo]

From: Arnaldo Carvalho de Melo <acme@redhat.com>

Before:

  # perf test -F -v 1
   1: vmlinux symtab matches kallsyms:
  --- start ---
<SNIP>
  WARN: Maps only in vmlinux:
   ffffffffb7d7d000-ffffffffb7eeaac8 117d000 [kernel].init.text
   ffffffffb7eeaac8-ffffffffc03ad000 12eaac8 [kernel].exit.text
  WARN: Maps in vmlinux with a different name in kallsyms:
  WARN: Maps only in kallsyms:
  ---- end ----
  vmlinux symtab matches kallsyms: Ok
  #

The two last WARN lines are now suppressed, since there are no such
cases detected.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-9ww8uvzl682ykaw8ht1tozlr@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/tests/vmlinux-kallsyms.c | 29 ++++++++++++++++++++++-------
 1 file changed, 22 insertions(+), 7 deletions(-)

diff --git a/tools/perf/tests/vmlinux-kallsyms.c b/tools/perf/tests/vmlinux-kallsyms.c
index 6bd5bf980de2..450f69960931 100644
--- a/tools/perf/tests/vmlinux-kallsyms.c
+++ b/tools/perf/tests/vmlinux-kallsyms.c
@@ -28,6 +28,7 @@ int test__vmlinux_matches_kallsyms(int subtest __maybe_unused)
 	enum map_type type = MAP__FUNCTION;
 	struct maps *maps = &vmlinux.kmaps.maps[type];
 	u64 mem_start, mem_end;
+	bool header_printed;
 
 	/*
 	 * Step 1:
@@ -178,7 +179,7 @@ next_pair:
 	if (!verbose)
 		goto out;
 
-	pr_info("WARN: Maps only in vmlinux:\n");
+	header_printed = false;
 
 	for (map = maps__first(maps); map; map = map__next(map)) {
 		struct map *
@@ -192,13 +193,18 @@ next_pair:
 						(map->dso->kernel ?
 							map->dso->short_name :
 							map->dso->name));
-		if (pair)
+		if (pair) {
 			pair->priv = 1;
-		else
+		} else {
+			if (!header_printed) {
+				pr_info("WARN: Maps only in vmlinux:\n");
+				header_printed = true;
+			}
 			map__fprintf(map, stderr);
+		}
 	}
 
-	pr_info("WARN: Maps in vmlinux with a different name in kallsyms:\n");
+	header_printed = false;
 
 	for (map = maps__first(maps); map; map = map__next(map)) {
 		struct map *pair;
@@ -211,7 +217,11 @@ next_pair:
 			continue;
 
 		if (pair->start == mem_start) {
-			pair->priv = 1;
+			if (!header_printed) {
+				pr_info("WARN: Maps in vmlinux with a different name in kallsyms:\n");
+				header_printed = true;
+			}
+
 			pr_info("WARN: %" PRIx64 "-%" PRIx64 " %" PRIx64 " %s in kallsyms as",
 				map->start, map->end, map->pgoff, map->dso->name);
 			if (mem_end != pair->end)
@@ -222,13 +232,18 @@ next_pair:
 		}
 	}
 
-	pr_info("WARN: Maps only in kallsyms:\n");
+	header_printed = false;
 
 	maps = &kallsyms.kmaps.maps[type];
 
 	for (map = maps__first(maps); map; map = map__next(map)) {
-		if (!map->priv)
+		if (!map->priv) {
+			if (!header_printed) {
+				pr_info("WARN: Maps only in kallsyms:\n");
+				header_printed = true;
+			}
 			map__fprintf(map, stderr);
+		}
 	}
 out:
 	machine__exit(&kallsyms);
-- 
2.7.4

[PATCH 14/19] perf test vmlinux: Tolerate symbol aliases

[Arnaldo Carvalho de Melo]

From: Arnaldo Carvalho de Melo <acme@redhat.com>

The algorithms used to prune aliases in symbols__fixup_duplicate() uses
information available on ELF symtabs that are not present on
/proc/kallsyms, so it picks different aliases as "best" for vmlinux and
kallsyms.

We could probably improve a bit this by having a list of aliases for the
"best" symbols picked, instead of throwing this info, but that is left
for when we find a real need.

With this, 'perf test vmlinux' passes:

  # perf test -F 1
   1: vmlinux symtab matches kallsyms: Ok
  #

When we ask for verbose mode, we can see those warning:

  # perf test -F -v 1
   1: vmlinux symtab matches kallsyms:
  --- start ---
  Looking at the vmlinux_path (8 entries long)
  Using /lib/modules/4.8.0-rc4+/build/vmlinux for symbols
  WARN: 0xffffffffb7001000: diff name v: xen_hypercall_set_trap_table k: hypercall_page
  WARN: 0xffffffffb7077970: diff end addr for aesni_gcm_dec v: 0xffffffffb707a2f2 k: 0xffffffffb7077a02
  WARN: 0xffffffffb707a300: diff end addr for aesni_gcm_enc v: 0xffffffffb707cc03 k: 0xffffffffb707a392
  WARN: 0xffffffffb707f950: diff end addr for aesni_gcm_enc_avx_gen2 v: 0xffffffffb7084ef6 k: 0xffffffffb707f9c3
  WARN: 0xffffffffb7084f00: diff end addr for aesni_gcm_dec_avx_gen2 v: 0xffffffffb708a691 k: 0xffffffffb7084f73
  WARN: 0xffffffffb708aa10: diff end addr for aesni_gcm_enc_avx_gen4 v: 0xffffffffb708f844 k: 0xffffffffb708aa83
  WARN: 0xffffffffb708f850: diff end addr for aesni_gcm_dec_avx_gen4 v: 0xffffffffb709486f k: 0xffffffffb708f8c3
  WARN: 0xffffffffb71a6e50: diff name v: perf_pmu_commit_txn.part.98 k: perf_pmu_cancel_txn.part.97
  WARN: 0xffffffffb752e480: diff name v: wakeup_expire_count_show.part.5 k: wakeup_active_count_show.part.7
  WARN: 0xffffffffb76e8d00: diff name v: phys_switch_id_show.part.11 k: phys_port_name_show.part.12
  WARN: Maps only in vmlinux:
   ffffffffb7d7d000-ffffffffb7eeaac8 117d000 [kernel].init.text
   ffffffffb7eeaac8-ffffffffc03ad000 12eaac8 [kernel].exit.text
  ---- end ----
  vmlinux symtab matches kallsyms: Ok
  #

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-6v5w1k8rpx4ggczlkw730vt0@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/tests/vmlinux-kallsyms.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/tools/perf/tests/vmlinux-kallsyms.c b/tools/perf/tests/vmlinux-kallsyms.c
index 450f69960931..77513bf99d1b 100644
--- a/tools/perf/tests/vmlinux-kallsyms.c
+++ b/tools/perf/tests/vmlinux-kallsyms.c
@@ -155,19 +155,20 @@ next_pair:
 				 * kallsyms.
 				 */
 				continue;
-
 			} else {
 				pair = machine__find_kernel_symbol_by_name(&kallsyms, type, sym->name, NULL, NULL);
 				if (pair) {
 					if (UM(pair->start) == mem_start)
 						goto next_pair;
 
-					pr_debug("ERR : %#" PRIx64 ": diff name v: %s k: %s\n",
+					pr_debug("WARN: %#" PRIx64 ": diff name v: %s k: %s\n",
 						 mem_start, sym->name, pair->name);
 				} else {
-					pr_debug("ERR : %#" PRIx64 ": diff name v: %s k: %s\n",
+					pr_debug("WARN: %#" PRIx64 ": diff name v: %s k: %s\n",
 						 mem_start, sym->name, first_pair->name);
 				}
+
+				continue;
 			}
 		} else
 			pr_debug("ERR : %#" PRIx64 ": %s not on kallsyms\n",
-- 
2.7.4

[PATCH 15/19] perf symbols: Check symbol_conf.allow_aliases for kallsyms loading too

[Arnaldo Carvalho de Melo]

From: Arnaldo Carvalho de Melo <acme@redhat.com>

We can allow aliases to be kept, but we were checking this just when
loading vmlinux files, be consistent, do it for any symbol table loading
code that calls symbol__fixup_duplicate() by making this function check
.allow_aliases instead.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Fixes: 680d926a8cb0 ("perf symbols: Allow symbol alias when loading map for symbol name")
Link: http://lkml.kernel.org/n/tip-z0avp0s6cfjckc4xj3pdfjdz@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/symbol-elf.c | 3 +--
 tools/perf/util/symbol.c     | 3 +++
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c
index e680371bd5c9..9ba6e49ead62 100644
--- a/tools/perf/util/symbol-elf.c
+++ b/tools/perf/util/symbol-elf.c
@@ -1136,8 +1136,7 @@ new_symbol:
 	 * For misannotated, zeroed, ASM function sizes.
 	 */
 	if (nr > 0) {
-		if (!symbol_conf.allow_aliases)
-			symbols__fixup_duplicate(&dso->symbols[map->type]);
+		symbols__fixup_duplicate(&dso->symbols[map->type]);
 		symbols__fixup_end(&dso->symbols[map->type]);
 		if (kmap) {
 			/*
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 863d69c45b8a..ef2f913de662 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -153,6 +153,9 @@ void symbols__fixup_duplicate(struct rb_root *symbols)
 	struct rb_node *nd;
 	struct symbol *curr, *next;
 
+	if (symbol_conf.allow_aliases)
+		return;
+
 	nd = rb_first(symbols);
 
 	while (nd) {
-- 
2.7.4

[PATCH 16/19] perf symbols: Fixup symbol sizes before picking best ones

[Arnaldo Carvalho de Melo]

From: Arnaldo Carvalho de Melo <acme@redhat.com>

When we call symbol__fixup_duplicate() we use algorithms to pick the
"best" symbols for cases where there are various functions/aliases to an
address, and those check zero size symbols, which, before calling
symbol__fixup_end() are _all_ symbols in a just parsed kallsyms file.

So first fixup the end, then fixup the duplicates.

Found while trying to figure out why 'perf test vmlinux' failed, see the
output of 'perf test -v vmlinux' to see cases where the symbols picked
as best for vmlinux don't match the ones picked for kallsyms.

Cc: Anton Blanchard <anton@samba.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Fixes: 694bf407b061 ("perf symbols: Add some heuristics for choosing the best duplicate symbol")
Link: http://lkml.kernel.org/n/tip-rxqvdgr0mqjdxee0kf8i2ufn@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/symbol-elf.c | 2 +-
 tools/perf/util/symbol.c     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c
index 9ba6e49ead62..295d3147a803 100644
--- a/tools/perf/util/symbol-elf.c
+++ b/tools/perf/util/symbol-elf.c
@@ -1136,8 +1136,8 @@ new_symbol:
 	 * For misannotated, zeroed, ASM function sizes.
 	 */
 	if (nr > 0) {
-		symbols__fixup_duplicate(&dso->symbols[map->type]);
 		symbols__fixup_end(&dso->symbols[map->type]);
+		symbols__fixup_duplicate(&dso->symbols[map->type]);
 		if (kmap) {
 			/*
 			 * We need to fixup this here too because we create new
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index ef2f913de662..98cd50384c32 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -1243,8 +1243,8 @@ int __dso__load_kallsyms(struct dso *dso, const char *filename,
 	if (kallsyms__delta(map, filename, &delta))
 		return -1;
 
-	symbols__fixup_duplicate(&dso->symbols[map->type]);
 	symbols__fixup_end(&dso->symbols[map->type]);
+	symbols__fixup_duplicate(&dso->symbols[map->type]);
 
 	if (dso->kernel == DSO_TYPE_GUEST_KERNEL)
 		dso->symtab_type = DSO_BINARY_TYPE__GUEST_KALLSYMS;
-- 
2.7.4

[PATCH 17/19] perf probe: Add helper function to check if probe with variable

[Arnaldo Carvalho de Melo]

From: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>

Introduce helper function instead of inline code and replace hardcoded
strings "$vars" and "$params" with their corresponding macros.

perf_probe_with_var() is not declared as static since it will be called
from different file in subsequent patch.

Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Hemant Kumar <hemant@linux.vnet.ibm.com>
Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1470214725-5023-1-git-send-email-ravi.bangoria@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/probe-event.c | 22 +++++++++++++++-------
 tools/perf/util/probe-event.h |  2 ++
 2 files changed, 17 insertions(+), 7 deletions(-)

diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 8a1e9e67614f..a543e9ca581c 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -1618,19 +1618,27 @@ out:
 	return ret;
 }
 
+/* Returns true if *any* ARG is either C variable, $params or $vars. */
+bool perf_probe_with_var(struct perf_probe_event *pev)
+{
+	int i = 0;
+
+	for (i = 0; i < pev->nargs; i++)
+		if (is_c_varname(pev->args[i].var)              ||
+		    !strcmp(pev->args[i].var, PROBE_ARG_PARAMS) ||
+		    !strcmp(pev->args[i].var, PROBE_ARG_VARS))
+			return true;
+	return false;
+}
+
 /* Return true if this perf_probe_event requires debuginfo */
 bool perf_probe_event_need_dwarf(struct perf_probe_event *pev)
 {
-	int i;
-
 	if (pev->point.file || pev->point.line || pev->point.lazy_line)
 		return true;
 
-	for (i = 0; i < pev->nargs; i++)
-		if (is_c_varname(pev->args[i].var) ||
-		    !strcmp(pev->args[i].var, "$params") ||
-		    !strcmp(pev->args[i].var, "$vars"))
-			return true;
+	if (perf_probe_with_var(pev))
+		return true;
 
 	return false;
 }
diff --git a/tools/perf/util/probe-event.h b/tools/perf/util/probe-event.h
index 62094082d940..8091d15113f7 100644
--- a/tools/perf/util/probe-event.h
+++ b/tools/perf/util/probe-event.h
@@ -128,6 +128,8 @@ char *synthesize_perf_probe_point(struct perf_probe_point *pp);
 int perf_probe_event__copy(struct perf_probe_event *dst,
 			   struct perf_probe_event *src);
 
+bool perf_probe_with_var(struct perf_probe_event *pev);
+
 /* Check the perf_probe_event needs debuginfo */
 bool perf_probe_event_need_dwarf(struct perf_probe_event *pev);
 
-- 
2.7.4

[PATCH 18/19] perf uprobe: Skip prologue if program compiled without optimization

[Arnaldo Carvalho de Melo]

From: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>

The function prologue prepares stack and registers before executing
function logic.

When target program is compiled without optimization, function parameter
information is only valid after the prologue.

When we probe entrypc of the function, and try to record a function
parameter, it contains a garbage value.

For example:

  $ vim test.c
    #include <stdio.h>

    void foo(int i)
    {
       printf("i: %d\n", i);
    }

    int main()
    {
      foo(42);
      return 0;
    }

  $ gcc -g test.c -o test
  $ objdump -dl test | less
    foo():
    /home/ravi/test.c:4
      400536:       55                      push   %rbp
      400537:       48 89 e5                mov    %rsp,%rbp
      40053a:       48 83 ec 10             sub    -bashx10,%rsp
      40053e:       89 7d fc                mov    %edi,-0x4(%rbp)
    /home/ravi/test.c:5
      400541:       8b 45 fc                mov    -0x4(%rbp),%eax
    ...
    ...
    main():
    /home/ravi/test.c:9
      400558:       55                      push   %rbp
      400559:       48 89 e5                mov    %rsp,%rbp
    /home/ravi/test.c:10
      40055c:       bf 2a 00 00 00          mov    -bashx2a,%edi
      400561:       e8 d0 ff ff ff          callq  400536 <foo>

  $ perf probe -x ./test 'foo i'
  $ cat /sys/kernel/debug/tracing/uprobe_events
     p:probe_test/foo /home/ravi/test:0x0000000000000536 i=-12(%sp):s32

  $ perf record -e probe_test:foo ./test
  $ perf script
     test  5778 [001]  4918.562027: probe_test:foo: (400536) i=0

Here variable 'i' is passed via stack which is pushed on stack at
0x40053e. But we are probing at 0x400536.

To resolve this issues, we need to probe on next instruction after
prologue.  gdb and systemtap also does same thing. I've implemented this
patch based on approach systemtap has used.

After applying patch:

  $ perf probe -x ./test 'foo i'
  $ cat /sys/kernel/debug/tracing/uprobe_events
    p:probe_test/foo /home/ravi/test:0x0000000000000541 i=-4(%bp):s32

  $ perf record -e probe_test:foo ./test
  $ perf script
    test  6300 [001]  5877.879327: probe_test:foo: (400541) i=42

No need to skip prologue for optimized case since debug info is correct
for each instructions for -O2 -g. For more details please visit:

        https://bugzilla.redhat.com/show_bug.cgi?id=612253#c6

Changes in v2:

- Skipping prologue only when any ARG is either C variable, $params or
  $vars.

- Probe on line(:1) may not be always possible. Recommend only address
  to force probe on function entry.

Committer notes:

Testing it with 'perf trace':

  # perf probe -x ./test foo i
  Added new event:
    probe_test:foo       (on foo in /home/acme/c/test with i)

  You can now use it in all perf tools, such as:

	  perf record -e probe_test:foo -aR sleep 1

  # cat /sys/kernel/debug/tracing/uprobe_events
  p:probe_test/foo /home/acme/c/test:0x0000000000000526 i=-12(%sp):s32
  # trace --no-sys --event probe_*:* ./test
  i: 42
     0.000 probe_test:foo:(400526) i=0)
  #

After the patch:

  # perf probe -d *:*
  Removed event: probe_test:foo
  # perf probe -x ./test foo i
  Target program is compiled without optimization. Skipping prologue.
  Probe on address 0x400526 to force probing at the function entry.

  Added new event:
    probe_test:foo       (on foo in /home/acme/c/test with i)

  You can now use it in all perf tools, such as:

	perf record -e probe_test:foo -aR sleep 1

  # cat /sys/kernel/debug/tracing/uprobe_events
  p:probe_test/foo /home/acme/c/test:0x0000000000000531 i=-4(%bp):s32
  # trace --no-sys --event probe_*:* ./test
  i: 42
     0.000 probe_test:foo:(400531) i=42)
  #

Reported-by: Michael Petlan <mpetlan@redhat.com>
Report-Link: https://www.mail-archive.com/linux-perf-users@vger.kernel.org/msg02348.html
Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Hemant Kumar <hemant@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wang Nan <wangnan0@huawei.com>
Cc: Yauheni Kaliuta <yauheni.kaliuta@redhat.com>
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1299021
Link: http://lkml.kernel.org/r/1470214725-5023-2-git-send-email-ravi.bangoria@linux.vnet.ibm.com
[ Rename 'die' to 'cu_die' to avoid shadowing a die() definition on at least centos 5, Debian 7 and ubuntu:12.04.5]
[ Use PRIx64 instead of lx to format a Dwarf_Addr, aka long long unsigned int, fixing the build on 32-bit systems ]
[ dwarf_getsrclines() expects a size_t * argument ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/probe-finder.c | 165 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 165 insertions(+)

diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index 508b61c6e5fb..003ecadae35d 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -907,6 +907,170 @@ static int find_probe_point_lazy(Dwarf_Die *sp_die, struct probe_finder *pf)
 	return die_walk_lines(sp_die, probe_point_lazy_walker, pf);
 }
 
+static bool var_has_loclist(Dwarf_Die *cu_die)
+{
+	Dwarf_Attribute loc;
+	int tag = dwarf_tag(cu_die);
+
+	if (tag != DW_TAG_formal_parameter &&
+	    tag != DW_TAG_variable)
+		return false;
+
+	return (dwarf_attr_integrate(cu_die, DW_AT_location, &loc) &&
+		dwarf_whatform(&loc) == DW_FORM_sec_offset);
+}
+
+/*
+ * For any object in given CU whose DW_AT_location is a location list,
+ * target program is compiled with optimization.
+ */
+static bool optimized_target(Dwarf_Die *cu_die)
+{
+	Dwarf_Die tmp_die;
+
+	if (var_has_loclist(cu_die))
+		return true;
+
+	if (!dwarf_child(cu_die, &tmp_die) && optimized_target(&tmp_die))
+		return true;
+
+	if (!dwarf_siblingof(cu_die, &tmp_die) && optimized_target(&tmp_die))
+		return true;
+
+	return false;
+}
+
+static bool get_entrypc_idx(Dwarf_Lines *lines, unsigned long nr_lines,
+			    Dwarf_Addr pf_addr, unsigned long *entrypc_idx)
+{
+	unsigned long i;
+	Dwarf_Addr addr;
+
+	for (i = 0; i < nr_lines; i++) {
+		if (dwarf_lineaddr(dwarf_onesrcline(lines, i), &addr))
+			return false;
+
+		if (addr == pf_addr) {
+			*entrypc_idx = i;
+			return true;
+		}
+	}
+	return false;
+}
+
+static bool get_postprologue_addr(unsigned long entrypc_idx,
+				  Dwarf_Lines *lines,
+				  unsigned long nr_lines,
+				  Dwarf_Addr highpc,
+				  Dwarf_Addr *postprologue_addr)
+{
+	unsigned long i;
+	int entrypc_lno, lno;
+	Dwarf_Line *line;
+	Dwarf_Addr addr;
+	bool p_end;
+
+	/* entrypc_lno is actual source line number */
+	line = dwarf_onesrcline(lines, entrypc_idx);
+	if (dwarf_lineno(line, &entrypc_lno))
+		return false;
+
+	for (i = entrypc_idx; i < nr_lines; i++) {
+		line = dwarf_onesrcline(lines, i);
+
+		if (dwarf_lineaddr(line, &addr) ||
+		    dwarf_lineno(line, &lno)    ||
+		    dwarf_lineprologueend(line, &p_end))
+			return false;
+
+		/* highpc is exclusive. [entrypc,highpc) */
+		if (addr >= highpc)
+			break;
+
+		/* clang supports prologue-end marker */
+		if (p_end)
+			break;
+
+		/* Actual next line in source */
+		if (lno != entrypc_lno)
+			break;
+
+		/*
+		 * Single source line can have multiple line records.
+		 * For Example,
+		 *     void foo() { printf("hello\n"); }
+		 * contains two line records. One points to declaration and
+		 * other points to printf() line. Variable 'lno' won't get
+		 * incremented in this case but 'i' will.
+		 */
+		if (i != entrypc_idx)
+			break;
+	}
+
+	dwarf_lineaddr(line, postprologue_addr);
+	if (*postprologue_addr >= highpc)
+		dwarf_lineaddr(dwarf_onesrcline(lines, i - 1),
+			       postprologue_addr);
+
+	return true;
+}
+
+static void __skip_prologue(Dwarf_Die *sp_die, struct probe_finder *pf)
+{
+	size_t nr_lines = 0;
+	unsigned long entrypc_idx = 0;
+	Dwarf_Lines *lines = NULL;
+	Dwarf_Addr postprologue_addr;
+	Dwarf_Addr highpc;
+
+	if (dwarf_highpc(sp_die, &highpc))
+		return;
+
+	if (dwarf_getsrclines(&pf->cu_die, &lines, &nr_lines))
+		return;
+
+	if (!get_entrypc_idx(lines, nr_lines, pf->addr, &entrypc_idx))
+		return;
+
+	if (!get_postprologue_addr(entrypc_idx, lines, nr_lines,
+				   highpc, &postprologue_addr))
+		return;
+
+	pf->addr = postprologue_addr;
+}
+
+static void skip_prologue(Dwarf_Die *sp_die, struct probe_finder *pf)
+{
+	struct perf_probe_point *pp = &pf->pev->point;
+
+	/* Not uprobe? */
+	if (!pf->pev->uprobes)
+		return;
+
+	/* Compiled with optimization? */
+	if (optimized_target(&pf->cu_die))
+		return;
+
+	/* Don't know entrypc? */
+	if (!pf->addr)
+		return;
+
+	/* Only FUNC and FUNC@SRC are eligible. */
+	if (!pp->function || pp->line || pp->retprobe || pp->lazy_line ||
+	    pp->offset || pp->abs_address)
+		return;
+
+	/* Not interested in func parameter? */
+	if (!perf_probe_with_var(pf->pev))
+		return;
+
+	pr_info("Target program is compiled without optimization. Skipping prologue.\n"
+		"Probe on address 0x%" PRIx64 " to force probing at the function entry.\n\n",
+		pf->addr);
+
+	__skip_prologue(sp_die, pf);
+}
+
 static int probe_point_inline_cb(Dwarf_Die *in_die, void *data)
 {
 	struct probe_finder *pf = data;
@@ -969,6 +1133,7 @@ static int probe_point_search_cb(Dwarf_Die *sp_die, void *data)
 		if (pp->lazy_line)
 			param->retval = find_probe_point_lazy(sp_die, pf);
 		else {
+			skip_prologue(sp_die, pf);
 			pf->addr += pp->offset;
 			/* TODO: Check the address in this function */
 			param->retval = call_probe_finder(sp_die, pf);
-- 
2.7.4

[PATCH 19/19] perf probe: Move dwarf specific functions to dwarf-aux.c

[Arnaldo Carvalho de Melo]

From: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>

Move generic dwarf related functions from util/probe-finder.c to
util/dwarf-aux.c. Functions name and their prototype are also changed
accordingly. No functionality changes.

Suggested-and-Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Hemant Kumar <hemant@linux.vnet.ibm.com>
Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1472546377-25612-1-git-send-email-ravi.bangoria@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/dwarf-aux.c    | 179 +++++++++++++++++++++++++++++++++++++++++
 tools/perf/util/dwarf-aux.h    |   8 ++
 tools/perf/util/probe-finder.c | 136 +------------------------------
 3 files changed, 189 insertions(+), 134 deletions(-)

diff --git a/tools/perf/util/dwarf-aux.c b/tools/perf/util/dwarf-aux.c
index a347b19c961a..faec899435f2 100644
--- a/tools/perf/util/dwarf-aux.c
+++ b/tools/perf/util/dwarf-aux.c
@@ -1085,3 +1085,182 @@ int die_get_var_range(Dwarf_Die *sp_die __maybe_unused,
 	return -ENOTSUP;
 }
 #endif
+
+/*
+ * die_has_loclist - Check if DW_AT_location of @vr_die is a location list
+ * @vr_die: a variable DIE
+ */
+static bool die_has_loclist(Dwarf_Die *vr_die)
+{
+	Dwarf_Attribute loc;
+	int tag = dwarf_tag(vr_die);
+
+	if (tag != DW_TAG_formal_parameter &&
+	    tag != DW_TAG_variable)
+		return false;
+
+	return (dwarf_attr_integrate(vr_die, DW_AT_location, &loc) &&
+		dwarf_whatform(&loc) == DW_FORM_sec_offset);
+}
+
+/*
+ * die_is_optimized_target - Check if target program is compiled with
+ * optimization
+ * @cu_die: a CU DIE
+ *
+ * For any object in given CU whose DW_AT_location is a location list,
+ * target program is compiled with optimization. This is applicable to
+ * clang as well.
+ */
+bool die_is_optimized_target(Dwarf_Die *cu_die)
+{
+	Dwarf_Die tmp_die;
+
+	if (die_has_loclist(cu_die))
+		return true;
+
+	if (!dwarf_child(cu_die, &tmp_die) &&
+	    die_is_optimized_target(&tmp_die))
+		return true;
+
+	if (!dwarf_siblingof(cu_die, &tmp_die) &&
+	    die_is_optimized_target(&tmp_die))
+		return true;
+
+	return false;
+}
+
+/*
+ * die_search_idx - Search index of given line address
+ * @lines: Line records of single CU
+ * @nr_lines: Number of @lines
+ * @addr: address we are looking for
+ * @idx: index to be set by this function (return value)
+ *
+ * Search for @addr by looping over every lines of CU. If address
+ * matches, set index of that line in @idx. Note that single source
+ * line can have multiple line records. i.e. single source line can
+ * have multiple index.
+ */
+static bool die_search_idx(Dwarf_Lines *lines, unsigned long nr_lines,
+			   Dwarf_Addr addr, unsigned long *idx)
+{
+	unsigned long i;
+	Dwarf_Addr tmp;
+
+	for (i = 0; i < nr_lines; i++) {
+		if (dwarf_lineaddr(dwarf_onesrcline(lines, i), &tmp))
+			return false;
+
+		if (tmp == addr) {
+			*idx = i;
+			return true;
+		}
+	}
+	return false;
+}
+
+/*
+ * die_get_postprologue_addr - Search next address after function prologue
+ * @entrypc_idx: entrypc index
+ * @lines: Line records of single CU
+ * @nr_lines: Number of @lines
+ * @hignpc: high PC address of function
+ * @postprologue_addr: Next address after function prologue (return value)
+ *
+ * Look for prologue-end marker. If there is no explicit marker, return
+ * address of next line record or next source line.
+ */
+static bool die_get_postprologue_addr(unsigned long entrypc_idx,
+				      Dwarf_Lines *lines,
+				      unsigned long nr_lines,
+				      Dwarf_Addr highpc,
+				      Dwarf_Addr *postprologue_addr)
+{
+	unsigned long i;
+	int entrypc_lno, lno;
+	Dwarf_Line *line;
+	Dwarf_Addr addr;
+	bool p_end;
+
+	/* entrypc_lno is actual source line number */
+	line = dwarf_onesrcline(lines, entrypc_idx);
+	if (dwarf_lineno(line, &entrypc_lno))
+		return false;
+
+	for (i = entrypc_idx; i < nr_lines; i++) {
+		line = dwarf_onesrcline(lines, i);
+
+		if (dwarf_lineaddr(line, &addr) ||
+		    dwarf_lineno(line, &lno)    ||
+		    dwarf_lineprologueend(line, &p_end))
+			return false;
+
+		/* highpc is exclusive. [entrypc,highpc) */
+		if (addr >= highpc)
+			break;
+
+		/* clang supports prologue-end marker */
+		if (p_end)
+			break;
+
+		/* Actual next line in source */
+		if (lno != entrypc_lno)
+			break;
+
+		/*
+		 * Single source line can have multiple line records.
+		 * For Example,
+		 *     void foo() { printf("hello\n"); }
+		 * contains two line records. One points to declaration and
+		 * other points to printf() line. Variable 'lno' won't get
+		 * incremented in this case but 'i' will.
+		 */
+		if (i != entrypc_idx)
+			break;
+	}
+
+	dwarf_lineaddr(line, postprologue_addr);
+	if (*postprologue_addr >= highpc)
+		dwarf_lineaddr(dwarf_onesrcline(lines, i - 1),
+			       postprologue_addr);
+
+	return true;
+}
+
+/*
+ * die_skip_prologue - Use next address after prologue as probe location
+ * @sp_die: a subprogram DIE
+ * @cu_die: a CU DIE
+ * @entrypc: entrypc of the function
+ *
+ * Function prologue prepares stack and registers before executing function
+ * logic. When target program is compiled without optimization, function
+ * parameter information is only valid after prologue. When we probe entrypc
+ * of the function, and try to record function parameter, it contains
+ * garbage value.
+ */
+void die_skip_prologue(Dwarf_Die *sp_die, Dwarf_Die *cu_die,
+		       Dwarf_Addr *entrypc)
+{
+	size_t nr_lines = 0;
+	unsigned long entrypc_idx = 0;
+	Dwarf_Lines *lines = NULL;
+	Dwarf_Addr postprologue_addr;
+	Dwarf_Addr highpc;
+
+	if (dwarf_highpc(sp_die, &highpc))
+		return;
+
+	if (dwarf_getsrclines(cu_die, &lines, &nr_lines))
+		return;
+
+	if (!die_search_idx(lines, nr_lines, *entrypc, &entrypc_idx))
+		return;
+
+	if (!die_get_postprologue_addr(entrypc_idx, lines, nr_lines,
+				       highpc, &postprologue_addr))
+		return;
+
+	*entrypc = postprologue_addr;
+}
diff --git a/tools/perf/util/dwarf-aux.h b/tools/perf/util/dwarf-aux.h
index dc0ce1adb075..8b6d2f83af02 100644
--- a/tools/perf/util/dwarf-aux.h
+++ b/tools/perf/util/dwarf-aux.h
@@ -125,4 +125,12 @@ int die_get_typename(Dwarf_Die *vr_die, struct strbuf *buf);
 /* Get the name and type of given variable DIE, stored as "type\tname" */
 int die_get_varname(Dwarf_Die *vr_die, struct strbuf *buf);
 int die_get_var_range(Dwarf_Die *sp_die, Dwarf_Die *vr_die, struct strbuf *buf);
+
+/* Check if target program is compiled with optimization */
+bool die_is_optimized_target(Dwarf_Die *cu_die);
+
+/* Use next address after prologue as probe location */
+void die_skip_prologue(Dwarf_Die *sp_die, Dwarf_Die *cu_die,
+		       Dwarf_Addr *entrypc);
+
 #endif
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index 003ecadae35d..8daca4fc1f8d 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -907,138 +907,6 @@ static int find_probe_point_lazy(Dwarf_Die *sp_die, struct probe_finder *pf)
 	return die_walk_lines(sp_die, probe_point_lazy_walker, pf);
 }
 
-static bool var_has_loclist(Dwarf_Die *cu_die)
-{
-	Dwarf_Attribute loc;
-	int tag = dwarf_tag(cu_die);
-
-	if (tag != DW_TAG_formal_parameter &&
-	    tag != DW_TAG_variable)
-		return false;
-
-	return (dwarf_attr_integrate(cu_die, DW_AT_location, &loc) &&
-		dwarf_whatform(&loc) == DW_FORM_sec_offset);
-}
-
-/*
- * For any object in given CU whose DW_AT_location is a location list,
- * target program is compiled with optimization.
- */
-static bool optimized_target(Dwarf_Die *cu_die)
-{
-	Dwarf_Die tmp_die;
-
-	if (var_has_loclist(cu_die))
-		return true;
-
-	if (!dwarf_child(cu_die, &tmp_die) && optimized_target(&tmp_die))
-		return true;
-
-	if (!dwarf_siblingof(cu_die, &tmp_die) && optimized_target(&tmp_die))
-		return true;
-
-	return false;
-}
-
-static bool get_entrypc_idx(Dwarf_Lines *lines, unsigned long nr_lines,
-			    Dwarf_Addr pf_addr, unsigned long *entrypc_idx)
-{
-	unsigned long i;
-	Dwarf_Addr addr;
-
-	for (i = 0; i < nr_lines; i++) {
-		if (dwarf_lineaddr(dwarf_onesrcline(lines, i), &addr))
-			return false;
-
-		if (addr == pf_addr) {
-			*entrypc_idx = i;
-			return true;
-		}
-	}
-	return false;
-}
-
-static bool get_postprologue_addr(unsigned long entrypc_idx,
-				  Dwarf_Lines *lines,
-				  unsigned long nr_lines,
-				  Dwarf_Addr highpc,
-				  Dwarf_Addr *postprologue_addr)
-{
-	unsigned long i;
-	int entrypc_lno, lno;
-	Dwarf_Line *line;
-	Dwarf_Addr addr;
-	bool p_end;
-
-	/* entrypc_lno is actual source line number */
-	line = dwarf_onesrcline(lines, entrypc_idx);
-	if (dwarf_lineno(line, &entrypc_lno))
-		return false;
-
-	for (i = entrypc_idx; i < nr_lines; i++) {
-		line = dwarf_onesrcline(lines, i);
-
-		if (dwarf_lineaddr(line, &addr) ||
-		    dwarf_lineno(line, &lno)    ||
-		    dwarf_lineprologueend(line, &p_end))
-			return false;
-
-		/* highpc is exclusive. [entrypc,highpc) */
-		if (addr >= highpc)
-			break;
-
-		/* clang supports prologue-end marker */
-		if (p_end)
-			break;
-
-		/* Actual next line in source */
-		if (lno != entrypc_lno)
-			break;
-
-		/*
-		 * Single source line can have multiple line records.
-		 * For Example,
-		 *     void foo() { printf("hello\n"); }
-		 * contains two line records. One points to declaration and
-		 * other points to printf() line. Variable 'lno' won't get
-		 * incremented in this case but 'i' will.
-		 */
-		if (i != entrypc_idx)
-			break;
-	}
-
-	dwarf_lineaddr(line, postprologue_addr);
-	if (*postprologue_addr >= highpc)
-		dwarf_lineaddr(dwarf_onesrcline(lines, i - 1),
-			       postprologue_addr);
-
-	return true;
-}
-
-static void __skip_prologue(Dwarf_Die *sp_die, struct probe_finder *pf)
-{
-	size_t nr_lines = 0;
-	unsigned long entrypc_idx = 0;
-	Dwarf_Lines *lines = NULL;
-	Dwarf_Addr postprologue_addr;
-	Dwarf_Addr highpc;
-
-	if (dwarf_highpc(sp_die, &highpc))
-		return;
-
-	if (dwarf_getsrclines(&pf->cu_die, &lines, &nr_lines))
-		return;
-
-	if (!get_entrypc_idx(lines, nr_lines, pf->addr, &entrypc_idx))
-		return;
-
-	if (!get_postprologue_addr(entrypc_idx, lines, nr_lines,
-				   highpc, &postprologue_addr))
-		return;
-
-	pf->addr = postprologue_addr;
-}
-
 static void skip_prologue(Dwarf_Die *sp_die, struct probe_finder *pf)
 {
 	struct perf_probe_point *pp = &pf->pev->point;
@@ -1048,7 +916,7 @@ static void skip_prologue(Dwarf_Die *sp_die, struct probe_finder *pf)
 		return;
 
 	/* Compiled with optimization? */
-	if (optimized_target(&pf->cu_die))
+	if (die_is_optimized_target(&pf->cu_die))
 		return;
 
 	/* Don't know entrypc? */
@@ -1068,7 +936,7 @@ static void skip_prologue(Dwarf_Die *sp_die, struct probe_finder *pf)
 		"Probe on address 0x%" PRIx64 " to force probing at the function entry.\n\n",
 		pf->addr);
 
-	__skip_prologue(sp_die, pf);
+	die_skip_prologue(sp_die, &pf->cu_die, &pf->addr);
 }
 
 static int probe_point_inline_cb(Dwarf_Die *in_die, void *data)
-- 
2.7.4

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@kernel.org> wrote:

> Hi Ingo,
> 
> 	Please consider pulling,
> 
> - Arnaldo
> 
> The following changes since commit 36e674a05164cdbb9d4a5b1b0b279fabae6c13bd:
> 
>   Merge tag 'perf-core-for-mingo-20160823' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2016-08-24 11:08:10 +0200)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-20160901
> 
> for you to fetch changes up to 6243b9dc4c991fe8bdc53a0e029908aef3ddb101:
> 
>   perf probe: Move dwarf specific functions to dwarf-aux.c (2016-09-01 12:42:26 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> User visible:
> 
> - Support generating cross arch probes, i.e. if you specify a vmlinux
>   file for different arch than the one in the host machine,
> 
> 	 $ perf probe --definition function_name args
> 
>   will generate the probe definition string needed to append to the
>   target machine /sys/kernel/debug/tracing/kprobes_events file, using
>   scripting (Masami Hiramatsu).
> 
> - Make 'perf probe' skip the function prologue in uprobes if program
>   compiled without optimization, using the same strategy as gdb and
>   systemtap uses, fixing a bug where:
> 
> 	$ perf probe -x ./test 'foo i'
> 
>   When 'foo(42)' was used on the "./test" executable would produce i=0
>   instead of the expected i=42 (Ravi Bangoria)
> 
> - Demangle symbols for synthesized @plt entries too (Millian Wolff)
> 
> Documentation:
> 
> - Show default report configuration in 'perf config' example
>   and docs (Millian Wolff)
> 
> Infrastructure:
> 
> - Make 'perf test vmlinux' tolerate the symbol aliasing pruning done when
>   loading kallsyms and vmlinux (Arnaldo Carvalho de Melo)
> 
> - Improve output of 'perf test vmlinux' test, to help identify on the verbose
>   output which lines are warning and which are errors (Arnaldo Carvalho de Melo)
> 
> - Prep work to stop having to pass symbol_filter_t to lots of functions,
>   simplifying symtab loading routines (Arnaldo Carvalho de Melo)
> 
> - Honor symbol_conf.allow_aliases when loading kallsyms as well, it was using
>   it only when loading vmlinux files (Arnaldo Carvalho de Melo)
> 
> - Fixup symbol->end before doing alias pruning when loading symbol tables
>   (Arnaldo Carvalho de Melo)
> 
> - Fix error handling of lzma kernel module decompression (Shawn Lin)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (8):
>       perf annotate: Initialize the priv are in symbol__new()
>       perf symbols: Rename ->ignore to ->idle
>       perf probe: Do not use map_load filters for function
>       perf test vmlinux: Clarify which -v lines are errors or warning
>       perf test vmlinux: Avoid printing headers for empty lists
>       perf test vmlinux: Tolerate symbol aliases
>       perf symbols: Check symbol_conf.allow_aliases for kallsyms loading too
>       perf symbols: Fixup symbol sizes before picking best ones
> 
> Masami Hiramatsu (5):
>       perf probe: Remove unused tracing_dir variable
>       perf probe: Show trace event definition
>       perf probe: Ignore vmlinux buildid if offline kernel is given
>       perf probe: Support probing on offline cross-arch binary
>       perf probe: Ignore vmlinux Build-id when offline vmlinux given
> 
> Milian Wolff (2):
>       perf symbols: Demangle symbols for synthesized @plt entries.
>       perf config: Show default report configuration in example and docs
> 
> Ravi Bangoria (3):
>       perf probe: Add helper function to check if probe with variable
>       perf uprobe: Skip prologue if program compiled without optimization
>       perf probe: Move dwarf specific functions to dwarf-aux.c
> 
> Shawn Lin (1):
>       perf tools: Fix error handling of lzma decompression
> 
>  tools/perf/Documentation/perf-config.txt           |   8 +
>  tools/perf/Documentation/perf-probe.txt            |   9 ++
>  tools/perf/Documentation/perfconfig.example        |   9 ++
>  tools/perf/arch/arm/include/dwarf-regs-table.h     |   9 ++
>  tools/perf/arch/arm64/include/dwarf-regs-table.h   |  13 ++
>  tools/perf/arch/powerpc/include/dwarf-regs-table.h |  27 ++++
>  tools/perf/arch/s390/include/dwarf-regs-table.h    |   8 +
>  tools/perf/arch/sh/include/dwarf-regs-table.h      |  25 +++
>  tools/perf/arch/sparc/include/dwarf-regs-table.h   |  18 +++
>  tools/perf/arch/x86/include/dwarf-regs-table.h     |  14 ++
>  tools/perf/arch/xtensa/include/dwarf-regs-table.h  |   8 +
>  tools/perf/builtin-annotate.c                      |   7 +-
>  tools/perf/builtin-probe.c                         |  35 +++-
>  tools/perf/builtin-report.c                        |   6 +-
>  tools/perf/builtin-top.c                           |   8 +-
>  tools/perf/tests/vmlinux-kallsyms.c                |  44 +++--
>  tools/perf/util/Build                              |   1 +
>  tools/perf/util/annotate.c                         |   7 -
>  tools/perf/util/annotate.h                         |   1 -
>  tools/perf/util/dwarf-aux.c                        | 179 +++++++++++++++++++++
>  tools/perf/util/dwarf-aux.h                        |   8 +
>  tools/perf/util/dwarf-regs.c                       |  59 +++++++
>  tools/perf/util/evsel_fprintf.c                    |   4 +-
>  tools/perf/util/include/dwarf-regs.h               |   6 +
>  tools/perf/util/lzma.c                             |  15 +-
>  tools/perf/util/probe-event.c                      | 101 +++++++++---
>  tools/perf/util/probe-event.h                      |   3 +
>  tools/perf/util/probe-file.c                       |   5 +-
>  tools/perf/util/probe-finder.c                     |  60 +++++--
>  tools/perf/util/probe-finder.h                     |   1 +
>  tools/perf/util/symbol-elf.c                       |  86 ++++++----
>  tools/perf/util/symbol.c                           |  30 +++-
>  tools/perf/util/symbol.h                           |   5 +-
>  33 files changed, 698 insertions(+), 121 deletions(-)
>  create mode 100644 tools/perf/arch/arm/include/dwarf-regs-table.h
>  create mode 100644 tools/perf/arch/arm64/include/dwarf-regs-table.h
>  create mode 100644 tools/perf/arch/powerpc/include/dwarf-regs-table.h
>  create mode 100644 tools/perf/arch/s390/include/dwarf-regs-table.h
>  create mode 100644 tools/perf/arch/sh/include/dwarf-regs-table.h
>  create mode 100644 tools/perf/arch/sparc/include/dwarf-regs-table.h
>  create mode 100644 tools/perf/arch/x86/include/dwarf-regs-table.h
>  create mode 100644 tools/perf/arch/xtensa/include/dwarf-regs-table.h
>  create mode 100644 tools/perf/util/dwarf-regs.c
> 
> Build stats:
> 
>   1 alpine:3.4: Ok
>   2 android-ndk:r12b-arm: Ok
>   3 archlinux:latest: Ok
>   4 centos:5: Ok
>   5 centos:6: Ok
>   6 centos:7: Ok
>   7 debian:7: Ok
>   8 debian:8: Ok
>   9 fedora:20: Ok
>  10 fedora:21: Ok
>  11 fedora:22: Ok
>  12 fedora:23: Ok
>  13 fedora:24: Ok
>  14 fedora:24-x-ARC-uClibc: Ok
>  15 fedora:rawhide: Ok
>  16 mageia:5: Ok
>  17 opensuse:13.2: Ok
>  18 opensuse:42.1: Ok
>  19 opensuse:tumbleweed: Ok
>  20 ubuntu:12.04.5: Ok
>  21 ubuntu:14.04.4: Ok
>  22 ubuntu:15.10: Ok
>  23 ubuntu:16.04: Ok
>  24 ubuntu:16.04-x-arm: Ok
>  25 ubuntu:16.04-x-arm64: Ok
>  26 ubuntu:16.04-x-powerpc64: Ok
>  27 ubuntu:16.04-x-powerpc64el: Ok
>  28 ubuntu:16.10: Ok
>  29 ubuntu:16.10-x-s390: Ok

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	A bit of trivia info is now automatically shown in the container
builds, the gcc version used to build the tools, that gets changed as
the distros update gcc and as I update the container build images :-)

	Please consider pulling,

- Arnaldo

Test results at the end of this message, as usual.

The following changes since commit 0d3d73aac2ff05c78387aa9dcc2c8aa3804405e7:

  perf/core: Rewrite event timekeeping (2017-10-27 10:31:59 +0200)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-4.15-20171103

for you to fetch changes up to 7285cf3325b4a1dfb336d31eebc27dfbc30fb9aa:

  perf srcline: Show correct function name for srcline of callchains (2017-11-01 11:44:38 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

- Beautify the 'kcmp' and 'prctl' syscall arguments in 'perf trace'
  (Arnaldo Carvalho de Melo)

- Implement a way to print formatted output to per-event files in 'perf script'
  to facilitate generate flamegraphs, elliminating the need to write scripts to
  do that separation (yuzhoujian, Arnaldo Carvalho de Melo)

  Make 'perf stat --per-thread' update shadow stats to show metrics (Jiri Olsa)

- Fix double mapping al->addr in callchain processing for children without self
  period (Namhyung Kim)

- Fix memory leak in addr2inlines() when libbfd is not used (Namhyung Kim)

- Show correct function name for srcline of callchains when libbfd is not used
  (Namhyung Kim)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Arnaldo Carvalho de Melo (11):
      perf script: Add a few missing conversions to fprintf style
      perf script: Use pr_debug where appropriate
      perf script: Use event_format__fprintf()
      perf evsel: Restore evsel->priv as a tool private area
      perf script: Allow creating per-event dump files
      tools include uapi: Grab a copy of linux/prctl.h
      perf trace beauty prctl: Generate 'option' string table from kernel headers
      perf script: Print information about per-event-dump files
      tools include uapi: Grab a copy of linux/kcmp.h
      perf trace beauty: Implement pid_fd beautifier
      perf trace beauty kcmp: Beautify arguments

Jiri Olsa (5):
      perf tools: Rename struct perf_data_file to perf_data
      perf tools: Add struct perf_data_file
      perf tools: Add perf_data_file__write function
      perf stat: Move the shadow stats scale computation in perf_stat__update_shadow_stats
      perf stat: Make --per-thread update shadow stats to show metrics

Namhyung Kim (3):
      perf callchain: Fix double mapping al->addr for children without self period
      perf srcline: Fix memory leak in addr2inlines()
      perf srcline: Show correct function name for srcline of callchains

 tools/include/uapi/linux/kcmp.h          |  27 +++++
 tools/include/uapi/linux/prctl.h         | 200 +++++++++++++++++++++++++++++++
 tools/perf/Documentation/perf-script.txt |   4 +
 tools/perf/Makefile.perf                 |  22 +++-
 tools/perf/builtin-annotate.c            |  10 +-
 tools/perf/builtin-buildid-cache.c       |   8 +-
 tools/perf/builtin-buildid-list.c        |  16 +--
 tools/perf/builtin-c2c.c                 |  10 +-
 tools/perf/builtin-diff.c                |  18 +--
 tools/perf/builtin-evlist.c              |  12 +-
 tools/perf/builtin-inject.c              |  36 +++---
 tools/perf/builtin-kmem.c                |   8 +-
 tools/perf/builtin-kvm.c                 |  14 ++-
 tools/perf/builtin-lock.c                |  12 +-
 tools/perf/builtin-mem.c                 |  12 +-
 tools/perf/builtin-record.c              |  50 ++++----
 tools/perf/builtin-report.c              |  14 +--
 tools/perf/builtin-sched.c               |  24 ++--
 tools/perf/builtin-script.c              | 169 ++++++++++++++++++++++----
 tools/perf/builtin-stat.c                |  39 +++---
 tools/perf/builtin-timechart.c           |  14 ++-
 tools/perf/builtin-trace.c               |  40 ++++++-
 tools/perf/check-headers.sh              |   2 +
 tools/perf/tests/topology.c              |  22 ++--
 tools/perf/trace/beauty/Build            |   2 +
 tools/perf/trace/beauty/beauty.h         |  18 +++
 tools/perf/trace/beauty/kcmp.c           |  44 +++++++
 tools/perf/trace/beauty/kcmp_type.sh     |  10 ++
 tools/perf/trace/beauty/prctl.c          |  82 +++++++++++++
 tools/perf/trace/beauty/prctl_option.sh  |  17 +++
 tools/perf/util/auxtrace.c               |   4 +-
 tools/perf/util/callchain.c              |   5 +-
 tools/perf/util/data-convert-bt.c        |  12 +-
 tools/perf/util/data.c                   |  94 ++++++++-------
 tools/perf/util/data.h                   |  38 +++---
 tools/perf/util/evsel.h                  |   3 +
 tools/perf/util/header.c                 |  20 ++--
 tools/perf/util/intel-bts.c              |   6 +-
 tools/perf/util/intel-pt.c               |   6 +-
 tools/perf/util/jit.h                    |   2 +-
 tools/perf/util/jitdump.c                |  10 +-
 tools/perf/util/session.c                |  44 +++----
 tools/perf/util/session.h                |   4 +-
 tools/perf/util/srcline.c                | 102 +++++++++-------
 tools/perf/util/stat-shadow.c            |  48 ++++----
 tools/perf/util/stat.c                   |  24 ++--
 tools/perf/util/stat.h                   |   2 +-
 47 files changed, 999 insertions(+), 381 deletions(-)
 create mode 100644 tools/include/uapi/linux/kcmp.h
 create mode 100644 tools/include/uapi/linux/prctl.h
 create mode 100644 tools/perf/trace/beauty/kcmp.c
 create mode 100755 tools/perf/trace/beauty/kcmp_type.sh
 create mode 100644 tools/perf/trace/beauty/prctl.c
 create mode 100755 tools/perf/trace/beauty/prctl_option.sh

Test results:

The first ones are container (docker) based builds of tools/perf with and
without libelf support.  Where clang is available, it is also used to build
perf with/without libelf.

The objtool and samples/bpf/ builds are disabled now that I'm switching from
using the sources in a local volume to fetching them from a http server to
build it inside the container, to make it easier to build in a container cluster.
Those will come back later.

Several are cross builds, the ones with -x-ARCH and the android one, and those
may not have all the features built, due to lack of multi-arch devel packages,
available and being used so far on just a few, like
debian:experimental-x-{arm64,mipsel}.

The 'perf test' one will perform a variety of tests exercising
tools/perf/util/, tools/lib/{bpf,traceevent,etc}, as well as run perf commands
with a variety of command line event specifications to then intercept the
sys_perf_event syscall to check that the perf_event_attr fields are set up as
expected, among a variety of other unit tests.

Then there is the 'make -C tools/perf build-test' ones, that build tools/perf/
with a variety of feature sets, exercising the build with an incomplete set of
features as well as with a complete one. It is planned to have it run on each
of the containers mentioned above, using some container orchestration
infrastructure. Get in contact if interested in helping having this in place.

  # dm
   1 alpine:3.4: Ok                       gcc (Alpine 5.3.0) 5.3.0
   2 alpine:3.5: Ok                       gcc (Alpine 6.2.1) 6.2.1 20160822
   3 alpine:3.6: Ok                       gcc (Alpine 6.3.0) 6.3.0
   4 alpine:edge: Ok                      gcc (Alpine 6.4.0) 6.4.0
   5 android-ndk:r12b-arm: Ok             arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
   6 android-ndk:r15c-arm: Ok             arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
   7 centos:5: Ok                         gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-55)
   8 centos:6: Ok                         gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-18)
   9 centos:7: Ok                         gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-16)
  10 debian:7: Ok                         gcc (Debian 4.7.2-5) 4.7.2
  11 debian:8: Ok                         gcc (Debian 4.9.2-10) 4.9.2
  12 debian:9: Ok                         gcc (Debian 6.3.0-18) 6.3.0 20170516
  13 debian:experimental: Ok              gcc (Debian 7.2.0-11) 7.2.0
  14 debian:experimental-x-arm64: Ok      aarch64-linux-gnu-gcc (Debian 7.2.0-6) 7.2.0
  15 debian:experimental-x-mips: Ok       mips-linux-gnu-gcc (Debian 7.2.0-6) 7.2.0
  16 debian:experimental-x-mips64: Ok     mips64-linux-gnuabi64-gcc (Debian 7.2.0-6) 7.2.0
  17 debian:experimental-x-mipsel: Ok     mipsel-linux-gnu-gcc (Debian 7.2.0-6) 7.2.0
  18 fedora:20: Ok                        gcc (GCC) 4.8.3 20140911 (Red Hat 4.8.3-7)
  19 fedora:21: Ok                        gcc (GCC) 4.9.2 20150212 (Red Hat 4.9.2-6)
  20 fedora:22: Ok                        gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6)
  21 fedora:23: Ok                        gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6)
  22 fedora:24: Ok                        gcc (GCC) 6.3.1 20161221 (Red Hat 6.3.1-1)
  23 fedora:24-x-ARC-uClibc: Ok           arc-linux-gcc (ARCompact ISA Linux uClibc toolchain 2017.09-rc2) 7.1.1 20170710
  24 fedora:25: Ok                        gcc (GCC) 6.4.1 20170727 (Red Hat 6.4.1-1)
  25 fedora:26: Ok                        gcc (GCC) 7.2.1 20170915 (Red Hat 7.2.1-2)
  26 fedora:rawhide: Ok                   gcc (GCC) 7.2.1 20170829 (Red Hat 7.2.1-1)
  27 mageia:5: Ok                         gcc (GCC) 4.9.2
  28 mageia:6: Ok                         gcc (Mageia 5.4.0-5.mga6) 5.4.0
  29 opensuse:42.1: Ok                    gcc (SUSE Linux) 4.8.5
  30 opensuse:42.2: Ok                    gcc (SUSE Linux) 4.8.5
  31 opensuse:42.3: Ok                    gcc (SUSE Linux) 4.8.5
  32 opensuse:tumbleweed: Ok              gcc (SUSE Linux) 7.2.1 20170901 [gcc-7-branch revision 251580]
  33 oraclelinux:6: Ok                    gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-18)
  34 oraclelinux:7: Ok                    gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-16)
  35 ubuntu:12.04.5: Ok                   gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3
  36 ubuntu:14.04.4: Ok                   gcc (Ubuntu 4.8.4-2ubuntu1~14.04.3) 4.8.4
  37 ubuntu:14.04.4-x-linaro-arm64: Ok    aarch64-linux-gnu-gcc (Linaro GCC 5.4-2017.05) 5.4.1 20170404
  38 ubuntu:15.04: Ok                     gcc (Ubuntu 4.9.2-10ubuntu13) 4.9.2
  39 ubuntu:15.10: Ok                     gcc (Ubuntu 5.2.1-22ubuntu2) 5.2.1 20151010
  40 ubuntu:16.04: Ok                     gcc (Ubuntu 5.4.0-6ubuntu1~16.04.5) 5.4.0 20160609
  41 ubuntu:16.04-x-arm: Ok               arm-linux-gnueabihf-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  42 ubuntu:16.04-x-arm64: Ok             aarch64-linux-gnu-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  43 ubuntu:16.04-x-powerpc: Ok           powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  44 ubuntu:16.04-x-powerpc64: Ok         powerpc64-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.1) 5.4.0 20160609
  45 ubuntu:16.04-x-powerpc64el: Ok       powerpc64le-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  46 ubuntu:16.04-x-s390: Ok              s390x-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  47 ubuntu:16.10: Ok                     gcc (Ubuntu 6.2.0-5ubuntu12) 6.2.0 20161005
  48 ubuntu:17.04: Ok                     gcc (Ubuntu 6.3.0-12ubuntu2) 6.3.0 20170406
  49 ubuntu:17.10: Ok                     gcc (Ubuntu 7.2.0-8ubuntu3) 7.2.0
  # 

  # uname -a
  Linux jouet 4.14.0-rc6+ #1 SMP Tue Oct 31 14:43:51 -03 2017 x86_64 x86_64 x86_64 GNU/Linux
  # perf test
   1: vmlinux symtab matches kallsyms                       : Ok
   2: Detect openat syscall event                           : Ok
   3: Detect openat syscall event on all cpus               : Ok
   4: Read samples using the mmap interface                 : Ok
   5: Test data source output                               : Ok
   6: Parse event definition strings                        : Ok
   7: Simple expression parser                              : Ok
   8: PERF_RECORD_* events & perf_sample fields             : Ok
   9: Parse perf pmu format                                 : Ok
  10: DSO data read                                         : Ok
  11: DSO data cache                                        : Ok
  12: DSO data reopen                                       : Ok
  13: Roundtrip evsel->name                                 : Ok
  14: Parse sched tracepoints fields                        : Ok
  15: syscalls:sys_enter_openat event fields                : Ok
  16: Setup struct perf_event_attr                          : Ok
  17: Match and link multiple hists                         : Ok
  18: 'import perf' in python                               : Ok
  19: Breakpoint overflow signal handler                    : Ok
  20: Breakpoint overflow sampling                          : Ok
  21: Number of exit events of a simple workload            : Ok
  22: Software clock events period values                   : Ok
  23: Object code reading                                   : Ok
  24: Sample parsing                                        : Ok
  25: Use a dummy software event to keep tracking           : Ok
  26: Parse with no sample_id_all bit set                   : Ok
  27: Filter hist entries                                   : Ok
  28: Lookup mmap thread                                    : Ok
  29: Share thread mg                                       : Ok
  30: Sort output of hist entries                           : Ok
  31: Cumulate child hist entries                           : Ok
  32: Track with sched_switch                               : Ok
  33: Filter fds with revents mask in a fdarray             : Ok
  34: Add fd to a fdarray, making it autogrow               : Ok
  35: kmod_path__parse                                      : Ok
  36: Thread map                                            : Ok
  37: LLVM search and compile                               :
  37.1: Basic BPF llvm compile                              : Ok
  37.2: kbuild searching                                    : Ok
  37.3: Compile source for BPF prologue generation          : Ok
  37.4: Compile source for BPF relocation                   : Ok
  38: Session topology                                      : Ok
  39: BPF filter                                            :
  39.1: Basic BPF filtering                                 : Ok
  39.2: BPF pinning                                         : Ok
  39.3: BPF prologue generation                             : Ok
  39.4: BPF relocation checker                              : Ok
  40: Synthesize thread map                                 : Ok
  41: Remove thread map                                     : Ok
  42: Synthesize cpu map                                    : Ok
  43: Synthesize stat config                                : Ok
  44: Synthesize stat                                       : Ok
  45: Synthesize stat round                                 : Ok
  46: Synthesize attr update                                : Ok
  47: Event times                                           : Ok
  48: Read backward ring buffer                             : Ok
  49: Print cpu map                                         : Ok
  50: Probe SDT events                                      : Ok
  51: is_printable_array                                    : Ok
  52: Print bitmap                                          : Ok
  53: perf hooks                                            : Ok
  54: builtin clang support                                 : Skip (not compiled in)
  55: unit_number__scnprintf                                : Ok
  56: x86 rdpmc                                             : Ok
  57: Convert perf time to TSC                              : Ok
  58: DWARF unwind                                          : Ok
  59: x86 instruction decoder - new instructions            : Ok
  60: Use vfs_getname probe to get syscall args filenames   : Ok
  61: probe libc's inet_pton & backtrace it with ping       : Ok
  62: Check open filename arg using perf trace + vfs_getname: Ok
  63: Add vfs_getname probe to get syscall args filenames   : Ok
  # 

  $ make -C tools/perf build-test
  make: Entering directory '/home/acme/git/linux/tools/perf'
  - tarpkg: ./tests/perf-targz-src-pkg .
                  make_no_ui_O: make NO_NEWT=1 NO_SLANG=1 NO_GTK2=1
              make_clean_all_O: make clean all
             make_no_libnuma_O: make NO_LIBNUMA=1
            make_no_demangle_O: make NO_DEMANGLE=1
         make_with_clangllvm_O: make LIBCLANGLLVM=1
             make_no_scripts_O: make NO_LIBPYTHON=1 NO_LIBPERL=1
                make_no_gtk2_O: make NO_GTK2=1
                 make_static_O: make LDFLAGS=-static
  make_no_libdw_dwarf_unwind_O: make NO_LIBDW_DWARF_UNWIND=1
                   make_pure_O: make
            make_no_libaudit_O: make NO_LIBAUDIT=1
                  make_debug_O: make DEBUG=1
                make_no_newt_O: make NO_NEWT=1
       make_util_pmu_bison_o_O: make util/pmu-bison.o
   make_install_prefix_slash_O: make install prefix=/tmp/krava/
               make_no_slang_O: make NO_SLANG=1
            make_no_auxtrace_O: make NO_AUXTRACE=1
         make_install_prefix_O: make install prefix=/tmp/krava
           make_no_libbionic_O: make NO_LIBBIONIC=1
                    make_doc_O: make doc
                   make_tags_O: make tags
        make_with_babeltrace_O: make LIBBABELTRACE=1
              make_no_libelf_O: make NO_LIBELF=1
           make_no_libpython_O: make NO_LIBPYTHON=1
                   make_help_O: make help
              make_no_libbpf_O: make NO_LIBBPF=1
                 make_perf_o_O: make perf.o
           make_no_libunwind_O: make NO_LIBUNWIND=1
                make_install_O: make install
             make_util_map_o_O: make util/map.o
            make_install_bin_O: make install-bin
           make_no_backtrace_O: make NO_BACKTRACE=1
             make_no_libperl_O: make NO_LIBPERL=1
                make_minimal_O: make NO_LIBPERL=1 NO_LIBPYTHON=1 NO_NEWT=1 NO_GTK2=1 NO_DEMANGLE=1 NO_LIBELF=1 NO_LIBUNWIND=1 NO_BACKTRACE=1 NO_LIBNUMA=1 NO_LIBAUDIT=1 NO_LIBBIONIC=1 NO_LIBDW_DWARF_UNWIND=1 NO_AUXTRACE=1 NO_LIBBPF=1 NO_LIBCRYPTO=1 NO_SDT=1 NO_JVMTI=1
  OK
  make: Leaving directory '/home/acme/git/linux/tools/perf'
  $

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Em Mon, Aug 14, 2017 at 07:39:48PM +0200, Ingo Molnar escreveu:
> * Arnaldo Carvalho de Melo <acme@kernel.org> wrote:
> > Infrastructure:

> > - Add support for shell based tests in 'perf test', add a few that
> >   run 'perf probe', 'perf trace', using kprobes, uprobes to check
> >   the output of those tools and the effects on the system, checking,
> >   for instance, DWARF backtraces from uprobes (Arnaldo Carvalho de Melo)
<SNIP>
> >  create mode 100644 tools/perf/tests/shell/lib/probe_vfs_getname.sh
> >  create mode 100755 tools/perf/tests/shell/probe_vfs_getname.sh
> >  create mode 100755 tools/perf/tests/shell/record+script_probe_vfs_getname.sh
> >  create mode 100755 tools/perf/tests/shell/trace+probe_libc_inet_pton.sh
> >  create mode 100755 tools/perf/tests/shell/trace+probe_vfs_getname.sh
> 
> Pulled, thanks a lot Arnaldo!

Thanks! I'm working with Kim Phillips to fix some issues he noticed
while testing on his ARM systems where 'perf probe' is not available, my
perf/core branch has several fixes to handle this that will be in my
next pull request.

- Arnaldo

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Em Mon, Aug 14, 2017 at 07:39:48PM +0200, Ingo Molnar escreveu:
> * Arnaldo Carvalho de Melo <acme@kernel.org> wrote:
> > Infrastructure:

> > - Add support for shell based tests in 'perf test', add a few that
> >   run 'perf probe', 'perf trace', using kprobes, uprobes to check
> >   the output of those tools and the effects on the system, checking,
> >   for instance, DWARF backtraces from uprobes (Arnaldo Carvalho de Melo)
<SNIP>
> >  create mode 100644 tools/perf/tests/shell/lib/probe_vfs_getname.sh
> >  create mode 100755 tools/perf/tests/shell/probe_vfs_getname.sh
> >  create mode 100755 tools/perf/tests/shell/record+script_probe_vfs_getname.sh
> >  create mode 100755 tools/perf/tests/shell/trace+probe_libc_inet_pton.sh
> >  create mode 100755 tools/perf/tests/shell/trace+probe_vfs_getname.sh
> 
> Pulled, thanks a lot Arnaldo!

Thanks! I'm working with Kim Phillips to fix some issues he noticed
while testing on his ARM systems where 'perf probe' is not available, my
perf/core branch has several fixes to handle this that will be in my
next pull request.

- Arnaldo

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@kernel.org> wrote:

> Hi Ingo,
> 
> 	Please consider pulling,
> 
> - Arnaldo
> 
> Test results at the end of this message, as usual.
> 
> 
> The following changes since commit 82119cbe8e1e32cc2a941393e59816e731681310:
> 
>   Merge tag 'perf-core-for-mingo-4.14-20170801' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2017-08-10 17:07:02 +0200)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-4.14-20170814
> 
> for you to fetch changes up to 8fc375d7d36c72b4c2d55f5c24be022a939295d4:
> 
>   perf test shell: Add uprobes + backtrace ping test (2017-08-11 16:18:49 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> Infrastructure:
> 
> - Do not consider empty files as valid srclines (Milian Wolff)
> 
> - Fix wrong size in perf_record_mmap for last kernel module,
>   which resulted in erroneous symbol resolution in at least s390x (Thomas Richter)
> 
> - Add missing newline to expr parser error messages (Andi Kleen)
> 
> - Fix saved values rbtree lookup in 'perf stat' (Andi Kleen)
> 
> - Add support for shell based tests in 'perf test', add a few that
>   run 'perf probe', 'perf trace', using kprobes, uprobes to check
>   the output of those tools and the effects on the system, checking,
>   for instance, DWARF backtraces from uprobes (Arnaldo Carvalho de Melo)
> 
> Arch specific:
> 
> - Add ppc64le to audit uname list in the python scripting support (Naveen N. Rao)
> 
> - Update POWER9 vendor events tables (Sukadev Bhattiprolu)
> 
> - Fix module symbol adjustment for s390x (Thomas Richter)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Andi Kleen (2):
>       perf stat: Fix saved values rbtree lookup
>       perf tools: Add missing newline to expr parser error messages
> 
> Arnaldo Carvalho de Melo (10):
>       perf test: Make 'list' subcommand match main 'perf test' numbering/matching
>       perf test: Add 'struct test *' to the test functions
>       perf test: Add infrastructure to run shell based tests
>       perf test: Make 'list' use same filtering code as main 'perf test'
>       perf test shell: Add 'probe_vfs_getname' shell test
>       perf test shell: Install shell tests
>       perf test shell: Move vfs_getname probe function to lib
>       perf test shell: Add test using probe:vfs_getname and verifying results
>       perf test shell: Add test using vfs_getname + 'perf trace'
>       perf test shell: Add uprobes + backtrace ping test
> 
> Milian Wolff (2):
>       perf util: Take elf_name as const string in dso__demangle_sym
>       perf srcline: Do not consider empty files as valid srclines
> 
> Naveen N. Rao (1):
>       perf scripting python: Add ppc64le to audit uname list
> 
> Sukadev Bhattiprolu (2):
>       perf vendor events powerpc: remove suffix in mapfile
>       perf vendor events powerpc: Update POWER9 events
> 
> Thomas Richter (2):
>       perf record: Fix wrong size in perf_record_mmap for last kernel module
>       perf report: Fix module symbol adjustment for s390x
> 
>  tools/perf/Makefile.perf                           |    6 +-
>  tools/perf/arch/s390/util/sym-handling.c           |    7 +
>  tools/perf/arch/x86/include/arch-tests.h           |   11 +-
>  tools/perf/arch/x86/tests/insn-x86.c               |    2 +-
>  tools/perf/arch/x86/tests/intel-cqm.c              |    2 +-
>  tools/perf/arch/x86/tests/perf-time-to-tsc.c       |    2 +-
>  tools/perf/arch/x86/tests/rdpmc.c                  |    2 +-
>  tools/perf/pmu-events/arch/powerpc/mapfile.csv     |   20 +-
>  .../perf/pmu-events/arch/powerpc/power9/cache.json |  191 +-
>  .../arch/powerpc/power9/floating-point.json        |   42 +-
>  .../pmu-events/arch/powerpc/power9/frontend.json   |  517 ++--
>  .../pmu-events/arch/powerpc/power9/marked.json     |  905 +++----
>  .../pmu-events/arch/powerpc/power9/memory.json     |  178 +-
>  .../perf/pmu-events/arch/powerpc/power9/other.json | 2768 ++++++++++++++++----
>  .../pmu-events/arch/powerpc/power9/pipeline.json   |  779 +++---
>  tools/perf/pmu-events/arch/powerpc/power9/pmc.json |  167 +-
>  .../arch/powerpc/power9/translation.json           |  314 +--
>  .../python/Perf-Trace-Util/lib/Perf/Trace/Util.py  |    1 +
>  tools/perf/tests/attr.c                            |    2 +-
>  tools/perf/tests/backward-ring-buffer.c            |    2 +-
>  tools/perf/tests/bitmap.c                          |    2 +-
>  tools/perf/tests/bp_signal.c                       |    2 +-
>  tools/perf/tests/bp_signal_overflow.c              |    2 +-
>  tools/perf/tests/bpf.c                             |    4 +-
>  tools/perf/tests/builtin-test.c                    |  184 +-
>  tools/perf/tests/clang.c                           |    4 +-
>  tools/perf/tests/code-reading.c                    |    2 +-
>  tools/perf/tests/cpumap.c                          |    4 +-
>  tools/perf/tests/dso-data.c                        |    6 +-
>  tools/perf/tests/dwarf-unwind.c                    |    2 +-
>  tools/perf/tests/event-times.c                     |    2 +-
>  tools/perf/tests/event_update.c                    |    2 +-
>  tools/perf/tests/evsel-roundtrip-name.c            |    2 +-
>  tools/perf/tests/evsel-tp-sched.c                  |    2 +-
>  tools/perf/tests/expr.c                            |    2 +-
>  tools/perf/tests/fdarray.c                         |    4 +-
>  tools/perf/tests/hists_cumulate.c                  |    2 +-
>  tools/perf/tests/hists_filter.c                    |    2 +-
>  tools/perf/tests/hists_link.c                      |    2 +-
>  tools/perf/tests/hists_output.c                    |    2 +-
>  tools/perf/tests/is_printable_array.c              |    2 +-
>  tools/perf/tests/keep-tracking.c                   |    2 +-
>  tools/perf/tests/kmod-path.c                       |    2 +-
>  tools/perf/tests/llvm.c                            |    2 +-
>  tools/perf/tests/mmap-basic.c                      |    2 +-
>  tools/perf/tests/mmap-thread-lookup.c              |    2 +-
>  tools/perf/tests/openat-syscall-all-cpus.c         |    2 +-
>  tools/perf/tests/openat-syscall-tp-fields.c        |    2 +-
>  tools/perf/tests/openat-syscall.c                  |    2 +-
>  tools/perf/tests/parse-events.c                    |    2 +-
>  tools/perf/tests/parse-no-sample-id-all.c          |    2 +-
>  tools/perf/tests/perf-hooks.c                      |    2 +-
>  tools/perf/tests/perf-record.c                     |    2 +-
>  tools/perf/tests/pmu.c                             |    2 +-
>  tools/perf/tests/python-use.c                      |    2 +-
>  tools/perf/tests/sample-parsing.c                  |    2 +-
>  tools/perf/tests/sdt.c                             |    4 +-
>  tools/perf/tests/shell/lib/probe_vfs_getname.sh    |   28 +
>  tools/perf/tests/shell/probe_vfs_getname.sh        |   10 +
>  .../tests/shell/record+script_probe_vfs_getname.sh |   37 +
>  .../perf/tests/shell/trace+probe_libc_inet_pton.sh |   40 +
>  tools/perf/tests/shell/trace+probe_vfs_getname.sh  |   31 +
>  tools/perf/tests/stat.c                            |    6 +-
>  tools/perf/tests/sw-clock.c                        |    2 +-
>  tools/perf/tests/switch-tracking.c                 |    2 +-
>  tools/perf/tests/task-exit.c                       |    2 +-
>  tools/perf/tests/tests.h                           |  113 +-
>  tools/perf/tests/thread-map.c                      |    6 +-
>  tools/perf/tests/thread-mg-share.c                 |    2 +-
>  tools/perf/tests/topology.c                        |    2 +-
>  tools/perf/tests/unit_number__scnprintf.c          |    2 +-
>  tools/perf/tests/vmlinux-kallsyms.c                |    2 +-
>  tools/perf/util/expr.y                             |    2 +-
>  tools/perf/util/machine.c                          |    4 +-
>  tools/perf/util/srcline.c                          |    6 +
>  tools/perf/util/stat-shadow.c                      |    6 +-
>  tools/perf/util/symbol-elf.c                       |   12 +-
>  tools/perf/util/symbol-minimal.c                   |    2 +-
>  tools/perf/util/symbol.c                           |   21 +-
>  tools/perf/util/symbol.h                           |    7 +-
>  80 files changed, 4054 insertions(+), 2479 deletions(-)
>  create mode 100644 tools/perf/tests/shell/lib/probe_vfs_getname.sh
>  create mode 100755 tools/perf/tests/shell/probe_vfs_getname.sh
>  create mode 100755 tools/perf/tests/shell/record+script_probe_vfs_getname.sh
>  create mode 100755 tools/perf/tests/shell/trace+probe_libc_inet_pton.sh
>  create mode 100755 tools/perf/tests/shell/trace+probe_vfs_getname.sh

Pulled, thanks a lot Arnaldo!

	Ingo

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@kernel.org> wrote:

> Hi Ingo,
> 
> 	Please consider pulling,
> 
> - Arnaldo
> 
> Test results at the end of this message, as usual.
> 
> 
> The following changes since commit 82119cbe8e1e32cc2a941393e59816e731681310:
> 
>   Merge tag 'perf-core-for-mingo-4.14-20170801' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2017-08-10 17:07:02 +0200)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-4.14-20170814
> 
> for you to fetch changes up to 8fc375d7d36c72b4c2d55f5c24be022a939295d4:
> 
>   perf test shell: Add uprobes + backtrace ping test (2017-08-11 16:18:49 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> Infrastructure:
> 
> - Do not consider empty files as valid srclines (Milian Wolff)
> 
> - Fix wrong size in perf_record_mmap for last kernel module,
>   which resulted in erroneous symbol resolution in at least s390x (Thomas Richter)
> 
> - Add missing newline to expr parser error messages (Andi Kleen)
> 
> - Fix saved values rbtree lookup in 'perf stat' (Andi Kleen)
> 
> - Add support for shell based tests in 'perf test', add a few that
>   run 'perf probe', 'perf trace', using kprobes, uprobes to check
>   the output of those tools and the effects on the system, checking,
>   for instance, DWARF backtraces from uprobes (Arnaldo Carvalho de Melo)
> 
> Arch specific:
> 
> - Add ppc64le to audit uname list in the python scripting support (Naveen N. Rao)
> 
> - Update POWER9 vendor events tables (Sukadev Bhattiprolu)
> 
> - Fix module symbol adjustment for s390x (Thomas Richter)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Andi Kleen (2):
>       perf stat: Fix saved values rbtree lookup
>       perf tools: Add missing newline to expr parser error messages
> 
> Arnaldo Carvalho de Melo (10):
>       perf test: Make 'list' subcommand match main 'perf test' numbering/matching
>       perf test: Add 'struct test *' to the test functions
>       perf test: Add infrastructure to run shell based tests
>       perf test: Make 'list' use same filtering code as main 'perf test'
>       perf test shell: Add 'probe_vfs_getname' shell test
>       perf test shell: Install shell tests
>       perf test shell: Move vfs_getname probe function to lib
>       perf test shell: Add test using probe:vfs_getname and verifying results
>       perf test shell: Add test using vfs_getname + 'perf trace'
>       perf test shell: Add uprobes + backtrace ping test
> 
> Milian Wolff (2):
>       perf util: Take elf_name as const string in dso__demangle_sym
>       perf srcline: Do not consider empty files as valid srclines
> 
> Naveen N. Rao (1):
>       perf scripting python: Add ppc64le to audit uname list
> 
> Sukadev Bhattiprolu (2):
>       perf vendor events powerpc: remove suffix in mapfile
>       perf vendor events powerpc: Update POWER9 events
> 
> Thomas Richter (2):
>       perf record: Fix wrong size in perf_record_mmap for last kernel module
>       perf report: Fix module symbol adjustment for s390x
> 
>  tools/perf/Makefile.perf                           |    6 +-
>  tools/perf/arch/s390/util/sym-handling.c           |    7 +
>  tools/perf/arch/x86/include/arch-tests.h           |   11 +-
>  tools/perf/arch/x86/tests/insn-x86.c               |    2 +-
>  tools/perf/arch/x86/tests/intel-cqm.c              |    2 +-
>  tools/perf/arch/x86/tests/perf-time-to-tsc.c       |    2 +-
>  tools/perf/arch/x86/tests/rdpmc.c                  |    2 +-
>  tools/perf/pmu-events/arch/powerpc/mapfile.csv     |   20 +-
>  .../perf/pmu-events/arch/powerpc/power9/cache.json |  191 +-
>  .../arch/powerpc/power9/floating-point.json        |   42 +-
>  .../pmu-events/arch/powerpc/power9/frontend.json   |  517 ++--
>  .../pmu-events/arch/powerpc/power9/marked.json     |  905 +++----
>  .../pmu-events/arch/powerpc/power9/memory.json     |  178 +-
>  .../perf/pmu-events/arch/powerpc/power9/other.json | 2768 ++++++++++++++++----
>  .../pmu-events/arch/powerpc/power9/pipeline.json   |  779 +++---
>  tools/perf/pmu-events/arch/powerpc/power9/pmc.json |  167 +-
>  .../arch/powerpc/power9/translation.json           |  314 +--
>  .../python/Perf-Trace-Util/lib/Perf/Trace/Util.py  |    1 +
>  tools/perf/tests/attr.c                            |    2 +-
>  tools/perf/tests/backward-ring-buffer.c            |    2 +-
>  tools/perf/tests/bitmap.c                          |    2 +-
>  tools/perf/tests/bp_signal.c                       |    2 +-
>  tools/perf/tests/bp_signal_overflow.c              |    2 +-
>  tools/perf/tests/bpf.c                             |    4 +-
>  tools/perf/tests/builtin-test.c                    |  184 +-
>  tools/perf/tests/clang.c                           |    4 +-
>  tools/perf/tests/code-reading.c                    |    2 +-
>  tools/perf/tests/cpumap.c                          |    4 +-
>  tools/perf/tests/dso-data.c                        |    6 +-
>  tools/perf/tests/dwarf-unwind.c                    |    2 +-
>  tools/perf/tests/event-times.c                     |    2 +-
>  tools/perf/tests/event_update.c                    |    2 +-
>  tools/perf/tests/evsel-roundtrip-name.c            |    2 +-
>  tools/perf/tests/evsel-tp-sched.c                  |    2 +-
>  tools/perf/tests/expr.c                            |    2 +-
>  tools/perf/tests/fdarray.c                         |    4 +-
>  tools/perf/tests/hists_cumulate.c                  |    2 +-
>  tools/perf/tests/hists_filter.c                    |    2 +-
>  tools/perf/tests/hists_link.c                      |    2 +-
>  tools/perf/tests/hists_output.c                    |    2 +-
>  tools/perf/tests/is_printable_array.c              |    2 +-
>  tools/perf/tests/keep-tracking.c                   |    2 +-
>  tools/perf/tests/kmod-path.c                       |    2 +-
>  tools/perf/tests/llvm.c                            |    2 +-
>  tools/perf/tests/mmap-basic.c                      |    2 +-
>  tools/perf/tests/mmap-thread-lookup.c              |    2 +-
>  tools/perf/tests/openat-syscall-all-cpus.c         |    2 +-
>  tools/perf/tests/openat-syscall-tp-fields.c        |    2 +-
>  tools/perf/tests/openat-syscall.c                  |    2 +-
>  tools/perf/tests/parse-events.c                    |    2 +-
>  tools/perf/tests/parse-no-sample-id-all.c          |    2 +-
>  tools/perf/tests/perf-hooks.c                      |    2 +-
>  tools/perf/tests/perf-record.c                     |    2 +-
>  tools/perf/tests/pmu.c                             |    2 +-
>  tools/perf/tests/python-use.c                      |    2 +-
>  tools/perf/tests/sample-parsing.c                  |    2 +-
>  tools/perf/tests/sdt.c                             |    4 +-
>  tools/perf/tests/shell/lib/probe_vfs_getname.sh    |   28 +
>  tools/perf/tests/shell/probe_vfs_getname.sh        |   10 +
>  .../tests/shell/record+script_probe_vfs_getname.sh |   37 +
>  .../perf/tests/shell/trace+probe_libc_inet_pton.sh |   40 +
>  tools/perf/tests/shell/trace+probe_vfs_getname.sh  |   31 +
>  tools/perf/tests/stat.c                            |    6 +-
>  tools/perf/tests/sw-clock.c                        |    2 +-
>  tools/perf/tests/switch-tracking.c                 |    2 +-
>  tools/perf/tests/task-exit.c                       |    2 +-
>  tools/perf/tests/tests.h                           |  113 +-
>  tools/perf/tests/thread-map.c                      |    6 +-
>  tools/perf/tests/thread-mg-share.c                 |    2 +-
>  tools/perf/tests/topology.c                        |    2 +-
>  tools/perf/tests/unit_number__scnprintf.c          |    2 +-
>  tools/perf/tests/vmlinux-kallsyms.c                |    2 +-
>  tools/perf/util/expr.y                             |    2 +-
>  tools/perf/util/machine.c                          |    4 +-
>  tools/perf/util/srcline.c                          |    6 +
>  tools/perf/util/stat-shadow.c                      |    6 +-
>  tools/perf/util/symbol-elf.c                       |   12 +-
>  tools/perf/util/symbol-minimal.c                   |    2 +-
>  tools/perf/util/symbol.c                           |   21 +-
>  tools/perf/util/symbol.h                           |    7 +-
>  80 files changed, 4054 insertions(+), 2479 deletions(-)
>  create mode 100644 tools/perf/tests/shell/lib/probe_vfs_getname.sh
>  create mode 100755 tools/perf/tests/shell/probe_vfs_getname.sh
>  create mode 100755 tools/perf/tests/shell/record+script_probe_vfs_getname.sh
>  create mode 100755 tools/perf/tests/shell/trace+probe_libc_inet_pton.sh
>  create mode 100755 tools/perf/tests/shell/trace+probe_vfs_getname.sh

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

Test results at the end of this message, as usual.


The following changes since commit 82119cbe8e1e32cc2a941393e59816e731681310:

  Merge tag 'perf-core-for-mingo-4.14-20170801' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2017-08-10 17:07:02 +0200)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-4.14-20170814

for you to fetch changes up to 8fc375d7d36c72b4c2d55f5c24be022a939295d4:

  perf test shell: Add uprobes + backtrace ping test (2017-08-11 16:18:49 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

Infrastructure:

- Do not consider empty files as valid srclines (Milian Wolff)

- Fix wrong size in perf_record_mmap for last kernel module,
  which resulted in erroneous symbol resolution in at least s390x (Thomas Richter)

- Add missing newline to expr parser error messages (Andi Kleen)

- Fix saved values rbtree lookup in 'perf stat' (Andi Kleen)

- Add support for shell based tests in 'perf test', add a few that
  run 'perf probe', 'perf trace', using kprobes, uprobes to check
  the output of those tools and the effects on the system, checking,
  for instance, DWARF backtraces from uprobes (Arnaldo Carvalho de Melo)

Arch specific:

- Add ppc64le to audit uname list in the python scripting support (Naveen N. Rao)

- Update POWER9 vendor events tables (Sukadev Bhattiprolu)

- Fix module symbol adjustment for s390x (Thomas Richter)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Andi Kleen (2):
      perf stat: Fix saved values rbtree lookup
      perf tools: Add missing newline to expr parser error messages

Arnaldo Carvalho de Melo (10):
      perf test: Make 'list' subcommand match main 'perf test' numbering/matching
      perf test: Add 'struct test *' to the test functions
      perf test: Add infrastructure to run shell based tests
      perf test: Make 'list' use same filtering code as main 'perf test'
      perf test shell: Add 'probe_vfs_getname' shell test
      perf test shell: Install shell tests
      perf test shell: Move vfs_getname probe function to lib
      perf test shell: Add test using probe:vfs_getname and verifying results
      perf test shell: Add test using vfs_getname + 'perf trace'
      perf test shell: Add uprobes + backtrace ping test

Milian Wolff (2):
      perf util: Take elf_name as const string in dso__demangle_sym
      perf srcline: Do not consider empty files as valid srclines

Naveen N. Rao (1):
      perf scripting python: Add ppc64le to audit uname list

Sukadev Bhattiprolu (2):
      perf vendor events powerpc: remove suffix in mapfile
      perf vendor events powerpc: Update POWER9 events

Thomas Richter (2):
      perf record: Fix wrong size in perf_record_mmap for last kernel module
      perf report: Fix module symbol adjustment for s390x

 tools/perf/Makefile.perf                           |    6 +-
 tools/perf/arch/s390/util/sym-handling.c           |    7 +
 tools/perf/arch/x86/include/arch-tests.h           |   11 +-
 tools/perf/arch/x86/tests/insn-x86.c               |    2 +-
 tools/perf/arch/x86/tests/intel-cqm.c              |    2 +-
 tools/perf/arch/x86/tests/perf-time-to-tsc.c       |    2 +-
 tools/perf/arch/x86/tests/rdpmc.c                  |    2 +-
 tools/perf/pmu-events/arch/powerpc/mapfile.csv     |   20 +-
 .../perf/pmu-events/arch/powerpc/power9/cache.json |  191 +-
 .../arch/powerpc/power9/floating-point.json        |   42 +-
 .../pmu-events/arch/powerpc/power9/frontend.json   |  517 ++--
 .../pmu-events/arch/powerpc/power9/marked.json     |  905 +++----
 .../pmu-events/arch/powerpc/power9/memory.json     |  178 +-
 .../perf/pmu-events/arch/powerpc/power9/other.json | 2768 ++++++++++++++++----
 .../pmu-events/arch/powerpc/power9/pipeline.json   |  779 +++---
 tools/perf/pmu-events/arch/powerpc/power9/pmc.json |  167 +-
 .../arch/powerpc/power9/translation.json           |  314 +--
 .../python/Perf-Trace-Util/lib/Perf/Trace/Util.py  |    1 +
 tools/perf/tests/attr.c                            |    2 +-
 tools/perf/tests/backward-ring-buffer.c            |    2 +-
 tools/perf/tests/bitmap.c                          |    2 +-
 tools/perf/tests/bp_signal.c                       |    2 +-
 tools/perf/tests/bp_signal_overflow.c              |    2 +-
 tools/perf/tests/bpf.c                             |    4 +-
 tools/perf/tests/builtin-test.c                    |  184 +-
 tools/perf/tests/clang.c                           |    4 +-
 tools/perf/tests/code-reading.c                    |    2 +-
 tools/perf/tests/cpumap.c                          |    4 +-
 tools/perf/tests/dso-data.c                        |    6 +-
 tools/perf/tests/dwarf-unwind.c                    |    2 +-
 tools/perf/tests/event-times.c                     |    2 +-
 tools/perf/tests/event_update.c                    |    2 +-
 tools/perf/tests/evsel-roundtrip-name.c            |    2 +-
 tools/perf/tests/evsel-tp-sched.c                  |    2 +-
 tools/perf/tests/expr.c                            |    2 +-
 tools/perf/tests/fdarray.c                         |    4 +-
 tools/perf/tests/hists_cumulate.c                  |    2 +-
 tools/perf/tests/hists_filter.c                    |    2 +-
 tools/perf/tests/hists_link.c                      |    2 +-
 tools/perf/tests/hists_output.c                    |    2 +-
 tools/perf/tests/is_printable_array.c              |    2 +-
 tools/perf/tests/keep-tracking.c                   |    2 +-
 tools/perf/tests/kmod-path.c                       |    2 +-
 tools/perf/tests/llvm.c                            |    2 +-
 tools/perf/tests/mmap-basic.c                      |    2 +-
 tools/perf/tests/mmap-thread-lookup.c              |    2 +-
 tools/perf/tests/openat-syscall-all-cpus.c         |    2 +-
 tools/perf/tests/openat-syscall-tp-fields.c        |    2 +-
 tools/perf/tests/openat-syscall.c                  |    2 +-
 tools/perf/tests/parse-events.c                    |    2 +-
 tools/perf/tests/parse-no-sample-id-all.c          |    2 +-
 tools/perf/tests/perf-hooks.c                      |    2 +-
 tools/perf/tests/perf-record.c                     |    2 +-
 tools/perf/tests/pmu.c                             |    2 +-
 tools/perf/tests/python-use.c                      |    2 +-
 tools/perf/tests/sample-parsing.c                  |    2 +-
 tools/perf/tests/sdt.c                             |    4 +-
 tools/perf/tests/shell/lib/probe_vfs_getname.sh    |   28 +
 tools/perf/tests/shell/probe_vfs_getname.sh        |   10 +
 .../tests/shell/record+script_probe_vfs_getname.sh |   37 +
 .../perf/tests/shell/trace+probe_libc_inet_pton.sh |   40 +
 tools/perf/tests/shell/trace+probe_vfs_getname.sh  |   31 +
 tools/perf/tests/stat.c                            |    6 +-
 tools/perf/tests/sw-clock.c                        |    2 +-
 tools/perf/tests/switch-tracking.c                 |    2 +-
 tools/perf/tests/task-exit.c                       |    2 +-
 tools/perf/tests/tests.h                           |  113 +-
 tools/perf/tests/thread-map.c                      |    6 +-
 tools/perf/tests/thread-mg-share.c                 |    2 +-
 tools/perf/tests/topology.c                        |    2 +-
 tools/perf/tests/unit_number__scnprintf.c          |    2 +-
 tools/perf/tests/vmlinux-kallsyms.c                |    2 +-
 tools/perf/util/expr.y                             |    2 +-
 tools/perf/util/machine.c                          |    4 +-
 tools/perf/util/srcline.c                          |    6 +
 tools/perf/util/stat-shadow.c                      |    6 +-
 tools/perf/util/symbol-elf.c                       |   12 +-
 tools/perf/util/symbol-minimal.c                   |    2 +-
 tools/perf/util/symbol.c                           |   21 +-
 tools/perf/util/symbol.h                           |    7 +-
 80 files changed, 4054 insertions(+), 2479 deletions(-)
 create mode 100644 tools/perf/tests/shell/lib/probe_vfs_getname.sh
 create mode 100755 tools/perf/tests/shell/probe_vfs_getname.sh
 create mode 100755 tools/perf/tests/shell/record+script_probe_vfs_getname.sh
 create mode 100755 tools/perf/tests/shell/trace+probe_libc_inet_pton.sh
 create mode 100755 tools/perf/tests/shell/trace+probe_vfs_getname.sh

Test results:

The first ones are container (docker) based builds of tools/perf with and
without libelf support, objtool where it is supported and samples/bpf/, ditto.
Where clang is available, it is also used to build perf with/without libelf.

Several are cross builds, the ones with -x-ARCH, and the android one, and those
may not have all the features built, due to lack of multi-arch devel packages,
available and being used so far on just a few, like
debian:experimental-x-{arm64,mipsel}.

The 'perf test' one will perform a variety of tests exercising
tools/perf/util/, tools/lib/{bpf,traceevent,etc}, as well as run perf
commands with a variety of command line event specifications to then
intercept the sys_perf_event syscall to check that the perf_event_attr
fields are set up as expected, among a variety of other unit tests.

The 'perf test'  also runs shell scripts exercising the tools, checking
if they affect the system in certain ways, like setting up kprobes and
uprobes, request callchains for well known programs and check that they
are the expected ones, see if 'perf trace' beautifies system call
arguments correctly, etc.

Additionally, a new set of tests, script based, runs the tools in a live system,
setting probes in place that then gets used by 'perf trace', with its output
compared against expected results.

Then there is the 'make -C tools/perf build-test' ones, that build tools/perf/
with a variety of feature sets, exercising the build with an incomplete set of
features as well as with a complete one. It is planned to have it run on each
of the containers mentioned above, using some container orchestration
infrastructure. Get in contact if interested in helping having this in place.

  # dm
   1 alpine:3.4: Ok
   2 alpine:3.5: Ok
   3 alpine:3.6: Ok
   4 alpine:edge: Ok
   5 android-ndk:r12b-arm: Ok
   6 archlinux:latest: Ok
   7 centos:5: Ok
   8 centos:6: Ok
   9 centos:7: Ok
  10 debian:7: Ok
  11 debian:8: Ok
  12 debian:9: Ok
  13 debian:experimental: Ok
  14 debian:experimental-x-arm64: Ok
  15 debian:experimental-x-mips: Ok
  16 debian:experimental-x-mips64: Ok
  17 debian:experimental-x-mipsel: Ok
  18 fedora:20: Ok
  19 fedora:21: Ok
  20 fedora:22: Ok
  21 fedora:23: Ok
  22 fedora:24: Ok
  23 fedora:24-x-ARC-uClibc: Ok
  24 fedora:25: Ok
  25 fedora:26: Ok
  26 fedora:rawhide: Ok
  27 mageia:5: Ok
  28 opensuse:13.2: Ok
  29 opensuse:42.1: Ok
  30 opensuse:42.2: Ok
  31 opensuse:tumbleweed: Ok
  32 oraclelinux:6: Ok
  33 oraclelinux:7: Ok
  34 ubuntu:12.04.5: Ok
  35 ubuntu:14.04.4: Ok
  36 ubuntu:14.04.4-x-linaro-arm64: Ok
  37 ubuntu:15.10: Ok
  38 ubuntu:16.04: Ok
  39 ubuntu:16.04-x-arm: Ok
  40 ubuntu:16.04-x-arm64: Ok
  41 ubuntu:16.04-x-powerpc: Ok
  42 ubuntu:16.04-x-powerpc64: Ok
  43 ubuntu:16.04-x-powerpc64el: Ok
  44 ubuntu:16.04-x-s390: Ok
  45 ubuntu:16.10: Ok
  46 ubuntu:17.04: Ok
  47 ubuntu:17.10: Ok
  #
  # uname -a
  Linux jouet 4.13.0-rc4+ #2 SMP Fri Aug 11 12:39:09 -03 2017 x86_64 x86_64 x86_64 GNU/Linux
  # perf test
   1: vmlinux symtab matches kallsyms                       : Ok
   2: Detect openat syscall event                           : Ok
   3: Detect openat syscall event on all cpus               : Ok
   4: Read samples using the mmap interface                 : Ok
   5: Parse event definition strings                        : Ok
   6: Simple expression parser                              : Ok
   7: PERF_RECORD_* events & perf_sample fields             : Ok
   8: Parse perf pmu format                                 : Ok
   9: DSO data read                                         : Ok
  10: DSO data cache                                        : Ok
  11: DSO data reopen                                       : Ok
  12: Roundtrip evsel->name                                 : Ok
  13: Parse sched tracepoints fields                        : Ok
  14: syscalls:sys_enter_openat event fields                : Ok
  15: Setup struct perf_event_attr                          : Ok
  16: Match and link multiple hists                         : Ok
  17: 'import perf' in python                               : Ok
  18: Breakpoint overflow signal handler                    : Ok
  19: Breakpoint overflow sampling                          : Ok
  20: Number of exit events of a simple workload            : Ok
  21: Software clock events period values                   : Ok
  22: Object code reading                                   : Ok
  23: Sample parsing                                        : Ok
  24: Use a dummy software event to keep tracking           : Ok
  25: Parse with no sample_id_all bit set                   : Ok
  26: Filter hist entries                                   : Ok
  27: Lookup mmap thread                                    : Ok
  28: Share thread mg                                       : Ok
  29: Sort output of hist entries                           : Ok
  30: Cumulate child hist entries                           : Ok
  31: Track with sched_switch                               : Ok
  32: Filter fds with revents mask in a fdarray             : Ok
  33: Add fd to a fdarray, making it autogrow               : Ok
  34: kmod_path__parse                                      : Ok
  35: Thread map                                            : Ok
  36: LLVM search and compile                               :
  36.1: Basic BPF llvm compile                              : Ok
  36.2: kbuild searching                                    : Ok
  36.3: Compile source for BPF prologue generation          : Ok
  36.4: Compile source for BPF relocation                   : Ok
  37: Session topology                                      : Ok
  38: BPF filter                                            :
  38.1: Basic BPF filtering                                 : Ok
  38.2: BPF pinning                                         : Ok
  38.3: BPF prologue generation                             : Ok
  38.4: BPF relocation checker                              : Ok
  39: Synthesize thread map                                 : Ok
  40: Remove thread map                                     : Ok
  41: Synthesize cpu map                                    : Ok
  42: Synthesize stat config                                : Ok
  43: Synthesize stat                                       : Ok
  44: Synthesize stat round                                 : Ok
  45: Synthesize attr update                                : Ok
  46: Event times                                           : Ok
  47: Read backward ring buffer                             : Ok
  48: Print cpu map                                         : Ok
  49: Probe SDT events                                      : Ok
  50: is_printable_array                                    : Ok
  51: Print bitmap                                          : Ok
  52: perf hooks                                            : Ok
  53: builtin clang support                                 : Skip (not compiled in)
  54: unit_number__scnprintf                                : Ok
  55: x86 rdpmc                                             : Ok
  56: Convert perf time to TSC                              : Ok
  57: DWARF unwind                                          : Ok
  58: x86 instruction decoder - new instructions            : Ok
  59: Intel cqm nmi context read                            : Skip
  60: Use vfs_getname probe to get syscall args filenames   : Ok
  61: probe libc's inet_pton & backtrace it with ping       : Ok
  62: Check open filename arg using perf trace + vfs_getname: Ok
  63: Add vfs_getname probe to get syscall args filenames   : Ok
  #

  # The static build test works on Fedora 25, is failing on Fedora 26,
  # this issue is being investigated.
  
  $ make -C tools/perf build-test
  make: Entering directory '/home/acme/git/linux/tools/perf'
  - tarpkg: ./tests/perf-targz-src-pkg .
               make_no_slang_O: make NO_SLANG=1
         make_install_prefix_O: make install prefix=/tmp/krava
            make_install_bin_O: make install-bin
                  make_debug_O: make DEBUG=1
              make_clean_all_O: make clean all
   make_install_prefix_slash_O: make install prefix=/tmp/krava/
            make_no_auxtrace_O: make NO_AUXTRACE=1
        make_with_babeltrace_O: make LIBBABELTRACE=1
                make_minimal_O: make NO_LIBPERL=1 NO_LIBPYTHON=1 NO_NEWT=1 NO_GTK2=1 NO_DEMANGLE=1 NO_LIBELF=1 NO_LIBUNWIND=1 NO_BACKTRACE=1 NO_LIBNUMA=1 NO_LIBAUDIT=1 NO_LIBBIONIC=1 NO_LIBDW_DWARF_UNWIND=1 NO_AUXTRACE=1 NO_LIBBPF=1 NO_LIBCRYPTO=1 NO_SDT=1 NO_JVMTI=1
           make_no_libpython_O: make NO_LIBPYTHON=1
            make_no_libaudit_O: make NO_LIBAUDIT=1
                   make_help_O: make help
            make_no_demangle_O: make NO_DEMANGLE=1
  make_no_libdw_dwarf_unwind_O: make NO_LIBDW_DWARF_UNWIND=1
           make_no_libunwind_O: make NO_LIBUNWIND=1
                make_install_O: make install
             make_no_scripts_O: make NO_LIBPYTHON=1 NO_LIBPERL=1
                make_no_newt_O: make NO_NEWT=1
       make_util_pmu_bison_o_O: make util/pmu-bison.o
                 make_perf_o_O: make perf.o
                make_no_gtk2_O: make NO_GTK2=1
                  make_no_ui_O: make NO_NEWT=1 NO_SLANG=1 NO_GTK2=1
              make_no_libbpf_O: make NO_LIBBPF=1
         make_with_clangllvm_O: make LIBCLANGLLVM=1
                   make_tags_O: make tags
             make_util_map_o_O: make util/map.o
                   make_pure_O: make
             make_no_libperl_O: make NO_LIBPERL=1
           make_no_libbionic_O: make NO_LIBBIONIC=1
           make_no_backtrace_O: make NO_BACKTRACE=1
             make_no_libnuma_O: make NO_LIBNUMA=1
              make_no_libelf_O: make NO_LIBELF=1
                    make_doc_O: make doc
  OK
  make: Leaving directory '/home/acme/git/linux/tools/perf'
  $

[GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

Test results at the end of this message, as usual.


The following changes since commit 82119cbe8e1e32cc2a941393e59816e731681310:

  Merge tag 'perf-core-for-mingo-4.14-20170801' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2017-08-10 17:07:02 +0200)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-4.14-20170814

for you to fetch changes up to 8fc375d7d36c72b4c2d55f5c24be022a939295d4:

  perf test shell: Add uprobes + backtrace ping test (2017-08-11 16:18:49 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

Infrastructure:

- Do not consider empty files as valid srclines (Milian Wolff)

- Fix wrong size in perf_record_mmap for last kernel module,
  which resulted in erroneous symbol resolution in at least s390x (Thomas Richter)

- Add missing newline to expr parser error messages (Andi Kleen)

- Fix saved values rbtree lookup in 'perf stat' (Andi Kleen)

- Add support for shell based tests in 'perf test', add a few that
  run 'perf probe', 'perf trace', using kprobes, uprobes to check
  the output of those tools and the effects on the system, checking,
  for instance, DWARF backtraces from uprobes (Arnaldo Carvalho de Melo)

Arch specific:

- Add ppc64le to audit uname list in the python scripting support (Naveen N. Rao)

- Update POWER9 vendor events tables (Sukadev Bhattiprolu)

- Fix module symbol adjustment for s390x (Thomas Richter)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Andi Kleen (2):
      perf stat: Fix saved values rbtree lookup
      perf tools: Add missing newline to expr parser error messages

Arnaldo Carvalho de Melo (10):
      perf test: Make 'list' subcommand match main 'perf test' numbering/matching
      perf test: Add 'struct test *' to the test functions
      perf test: Add infrastructure to run shell based tests
      perf test: Make 'list' use same filtering code as main 'perf test'
      perf test shell: Add 'probe_vfs_getname' shell test
      perf test shell: Install shell tests
      perf test shell: Move vfs_getname probe function to lib
      perf test shell: Add test using probe:vfs_getname and verifying results
      perf test shell: Add test using vfs_getname + 'perf trace'
      perf test shell: Add uprobes + backtrace ping test

Milian Wolff (2):
      perf util: Take elf_name as const string in dso__demangle_sym
      perf srcline: Do not consider empty files as valid srclines

Naveen N. Rao (1):
      perf scripting python: Add ppc64le to audit uname list

Sukadev Bhattiprolu (2):
      perf vendor events powerpc: remove suffix in mapfile
      perf vendor events powerpc: Update POWER9 events

Thomas Richter (2):
      perf record: Fix wrong size in perf_record_mmap for last kernel module
      perf report: Fix module symbol adjustment for s390x

 tools/perf/Makefile.perf                           |    6 +-
 tools/perf/arch/s390/util/sym-handling.c           |    7 +
 tools/perf/arch/x86/include/arch-tests.h           |   11 +-
 tools/perf/arch/x86/tests/insn-x86.c               |    2 +-
 tools/perf/arch/x86/tests/intel-cqm.c              |    2 +-
 tools/perf/arch/x86/tests/perf-time-to-tsc.c       |    2 +-
 tools/perf/arch/x86/tests/rdpmc.c                  |    2 +-
 tools/perf/pmu-events/arch/powerpc/mapfile.csv     |   20 +-
 .../perf/pmu-events/arch/powerpc/power9/cache.json |  191 +-
 .../arch/powerpc/power9/floating-point.json        |   42 +-
 .../pmu-events/arch/powerpc/power9/frontend.json   |  517 ++--
 .../pmu-events/arch/powerpc/power9/marked.json     |  905 +++----
 .../pmu-events/arch/powerpc/power9/memory.json     |  178 +-
 .../perf/pmu-events/arch/powerpc/power9/other.json | 2768 ++++++++++++++++----
 .../pmu-events/arch/powerpc/power9/pipeline.json   |  779 +++---
 tools/perf/pmu-events/arch/powerpc/power9/pmc.json |  167 +-
 .../arch/powerpc/power9/translation.json           |  314 +--
 .../python/Perf-Trace-Util/lib/Perf/Trace/Util.py  |    1 +
 tools/perf/tests/attr.c                            |    2 +-
 tools/perf/tests/backward-ring-buffer.c            |    2 +-
 tools/perf/tests/bitmap.c                          |    2 +-
 tools/perf/tests/bp_signal.c                       |    2 +-
 tools/perf/tests/bp_signal_overflow.c              |    2 +-
 tools/perf/tests/bpf.c                             |    4 +-
 tools/perf/tests/builtin-test.c                    |  184 +-
 tools/perf/tests/clang.c                           |    4 +-
 tools/perf/tests/code-reading.c                    |    2 +-
 tools/perf/tests/cpumap.c                          |    4 +-
 tools/perf/tests/dso-data.c                        |    6 +-
 tools/perf/tests/dwarf-unwind.c                    |    2 +-
 tools/perf/tests/event-times.c                     |    2 +-
 tools/perf/tests/event_update.c                    |    2 +-
 tools/perf/tests/evsel-roundtrip-name.c            |    2 +-
 tools/perf/tests/evsel-tp-sched.c                  |    2 +-
 tools/perf/tests/expr.c                            |    2 +-
 tools/perf/tests/fdarray.c                         |    4 +-
 tools/perf/tests/hists_cumulate.c                  |    2 +-
 tools/perf/tests/hists_filter.c                    |    2 +-
 tools/perf/tests/hists_link.c                      |    2 +-
 tools/perf/tests/hists_output.c                    |    2 +-
 tools/perf/tests/is_printable_array.c              |    2 +-
 tools/perf/tests/keep-tracking.c                   |    2 +-
 tools/perf/tests/kmod-path.c                       |    2 +-
 tools/perf/tests/llvm.c                            |    2 +-
 tools/perf/tests/mmap-basic.c                      |    2 +-
 tools/perf/tests/mmap-thread-lookup.c              |    2 +-
 tools/perf/tests/openat-syscall-all-cpus.c         |    2 +-
 tools/perf/tests/openat-syscall-tp-fields.c        |    2 +-
 tools/perf/tests/openat-syscall.c                  |    2 +-
 tools/perf/tests/parse-events.c                    |    2 +-
 tools/perf/tests/parse-no-sample-id-all.c          |    2 +-
 tools/perf/tests/perf-hooks.c                      |    2 +-
 tools/perf/tests/perf-record.c                     |    2 +-
 tools/perf/tests/pmu.c                             |    2 +-
 tools/perf/tests/python-use.c                      |    2 +-
 tools/perf/tests/sample-parsing.c                  |    2 +-
 tools/perf/tests/sdt.c                             |    4 +-
 tools/perf/tests/shell/lib/probe_vfs_getname.sh    |   28 +
 tools/perf/tests/shell/probe_vfs_getname.sh        |   10 +
 .../tests/shell/record+script_probe_vfs_getname.sh |   37 +
 .../perf/tests/shell/trace+probe_libc_inet_pton.sh |   40 +
 tools/perf/tests/shell/trace+probe_vfs_getname.sh  |   31 +
 tools/perf/tests/stat.c                            |    6 +-
 tools/perf/tests/sw-clock.c                        |    2 +-
 tools/perf/tests/switch-tracking.c                 |    2 +-
 tools/perf/tests/task-exit.c                       |    2 +-
 tools/perf/tests/tests.h                           |  113 +-
 tools/perf/tests/thread-map.c                      |    6 +-
 tools/perf/tests/thread-mg-share.c                 |    2 +-
 tools/perf/tests/topology.c                        |    2 +-
 tools/perf/tests/unit_number__scnprintf.c          |    2 +-
 tools/perf/tests/vmlinux-kallsyms.c                |    2 +-
 tools/perf/util/expr.y                             |    2 +-
 tools/perf/util/machine.c                          |    4 +-
 tools/perf/util/srcline.c                          |    6 +
 tools/perf/util/stat-shadow.c                      |    6 +-
 tools/perf/util/symbol-elf.c                       |   12 +-
 tools/perf/util/symbol-minimal.c                   |    2 +-
 tools/perf/util/symbol.c                           |   21 +-
 tools/perf/util/symbol.h                           |    7 +-
 80 files changed, 4054 insertions(+), 2479 deletions(-)
 create mode 100644 tools/perf/tests/shell/lib/probe_vfs_getname.sh
 create mode 100755 tools/perf/tests/shell/probe_vfs_getname.sh
 create mode 100755 tools/perf/tests/shell/record+script_probe_vfs_getname.sh
 create mode 100755 tools/perf/tests/shell/trace+probe_libc_inet_pton.sh
 create mode 100755 tools/perf/tests/shell/trace+probe_vfs_getname.sh

Test results:

The first ones are container (docker) based builds of tools/perf with and
without libelf support, objtool where it is supported and samples/bpf/, ditto.
Where clang is available, it is also used to build perf with/without libelf.

Several are cross builds, the ones with -x-ARCH, and the android one, and those
may not have all the features built, due to lack of multi-arch devel packages,
available and being used so far on just a few, like
debian:experimental-x-{arm64,mipsel}.

The 'perf test' one will perform a variety of tests exercising
tools/perf/util/, tools/lib/{bpf,traceevent,etc}, as well as run perf
commands with a variety of command line event specifications to then
intercept the sys_perf_event syscall to check that the perf_event_attr
fields are set up as expected, among a variety of other unit tests.

The 'perf test'  also runs shell scripts exercising the tools, checking
if they affect the system in certain ways, like setting up kprobes and
uprobes, request callchains for well known programs and check that they
are the expected ones, see if 'perf trace' beautifies system call
arguments correctly, etc.

Additionally, a new set of tests, script based, runs the tools in a live system,
setting probes in place that then gets used by 'perf trace', with its output
compared against expected results.

Then there is the 'make -C tools/perf build-test' ones, that build tools/perf/
with a variety of feature sets, exercising the build with an incomplete set of
features as well as with a complete one. It is planned to have it run on each
of the containers mentioned above, using some container orchestration
infrastructure. Get in contact if interested in helping having this in place.

  # dm
   1 alpine:3.4: Ok
   2 alpine:3.5: Ok
   3 alpine:3.6: Ok
   4 alpine:edge: Ok
   5 android-ndk:r12b-arm: Ok
   6 archlinux:latest: Ok
   7 centos:5: Ok
   8 centos:6: Ok
   9 centos:7: Ok
  10 debian:7: Ok
  11 debian:8: Ok
  12 debian:9: Ok
  13 debian:experimental: Ok
  14 debian:experimental-x-arm64: Ok
  15 debian:experimental-x-mips: Ok
  16 debian:experimental-x-mips64: Ok
  17 debian:experimental-x-mipsel: Ok
  18 fedora:20: Ok
  19 fedora:21: Ok
  20 fedora:22: Ok
  21 fedora:23: Ok
  22 fedora:24: Ok
  23 fedora:24-x-ARC-uClibc: Ok
  24 fedora:25: Ok
  25 fedora:26: Ok
  26 fedora:rawhide: Ok
  27 mageia:5: Ok
  28 opensuse:13.2: Ok
  29 opensuse:42.1: Ok
  30 opensuse:42.2: Ok
  31 opensuse:tumbleweed: Ok
  32 oraclelinux:6: Ok
  33 oraclelinux:7: Ok
  34 ubuntu:12.04.5: Ok
  35 ubuntu:14.04.4: Ok
  36 ubuntu:14.04.4-x-linaro-arm64: Ok
  37 ubuntu:15.10: Ok
  38 ubuntu:16.04: Ok
  39 ubuntu:16.04-x-arm: Ok
  40 ubuntu:16.04-x-arm64: Ok
  41 ubuntu:16.04-x-powerpc: Ok
  42 ubuntu:16.04-x-powerpc64: Ok
  43 ubuntu:16.04-x-powerpc64el: Ok
  44 ubuntu:16.04-x-s390: Ok
  45 ubuntu:16.10: Ok
  46 ubuntu:17.04: Ok
  47 ubuntu:17.10: Ok
  #
  # uname -a
  Linux jouet 4.13.0-rc4+ #2 SMP Fri Aug 11 12:39:09 -03 2017 x86_64 x86_64 x86_64 GNU/Linux
  # perf test
   1: vmlinux symtab matches kallsyms                       : Ok
   2: Detect openat syscall event                           : Ok
   3: Detect openat syscall event on all cpus               : Ok
   4: Read samples using the mmap interface                 : Ok
   5: Parse event definition strings                        : Ok
   6: Simple expression parser                              : Ok
   7: PERF_RECORD_* events & perf_sample fields             : Ok
   8: Parse perf pmu format                                 : Ok
   9: DSO data read                                         : Ok
  10: DSO data cache                                        : Ok
  11: DSO data reopen                                       : Ok
  12: Roundtrip evsel->name                                 : Ok
  13: Parse sched tracepoints fields                        : Ok
  14: syscalls:sys_enter_openat event fields                : Ok
  15: Setup struct perf_event_attr                          : Ok
  16: Match and link multiple hists                         : Ok
  17: 'import perf' in python                               : Ok
  18: Breakpoint overflow signal handler                    : Ok
  19: Breakpoint overflow sampling                          : Ok
  20: Number of exit events of a simple workload            : Ok
  21: Software clock events period values                   : Ok
  22: Object code reading                                   : Ok
  23: Sample parsing                                        : Ok
  24: Use a dummy software event to keep tracking           : Ok
  25: Parse with no sample_id_all bit set                   : Ok
  26: Filter hist entries                                   : Ok
  27: Lookup mmap thread                                    : Ok
  28: Share thread mg                                       : Ok
  29: Sort output of hist entries                           : Ok
  30: Cumulate child hist entries                           : Ok
  31: Track with sched_switch                               : Ok
  32: Filter fds with revents mask in a fdarray             : Ok
  33: Add fd to a fdarray, making it autogrow               : Ok
  34: kmod_path__parse                                      : Ok
  35: Thread map                                            : Ok
  36: LLVM search and compile                               :
  36.1: Basic BPF llvm compile                              : Ok
  36.2: kbuild searching                                    : Ok
  36.3: Compile source for BPF prologue generation          : Ok
  36.4: Compile source for BPF relocation                   : Ok
  37: Session topology                                      : Ok
  38: BPF filter                                            :
  38.1: Basic BPF filtering                                 : Ok
  38.2: BPF pinning                                         : Ok
  38.3: BPF prologue generation                             : Ok
  38.4: BPF relocation checker                              : Ok
  39: Synthesize thread map                                 : Ok
  40: Remove thread map                                     : Ok
  41: Synthesize cpu map                                    : Ok
  42: Synthesize stat config                                : Ok
  43: Synthesize stat                                       : Ok
  44: Synthesize stat round                                 : Ok
  45: Synthesize attr update                                : Ok
  46: Event times                                           : Ok
  47: Read backward ring buffer                             : Ok
  48: Print cpu map                                         : Ok
  49: Probe SDT events                                      : Ok
  50: is_printable_array                                    : Ok
  51: Print bitmap                                          : Ok
  52: perf hooks                                            : Ok
  53: builtin clang support                                 : Skip (not compiled in)
  54: unit_number__scnprintf                                : Ok
  55: x86 rdpmc                                             : Ok
  56: Convert perf time to TSC                              : Ok
  57: DWARF unwind                                          : Ok
  58: x86 instruction decoder - new instructions            : Ok
  59: Intel cqm nmi context read                            : Skip
  60: Use vfs_getname probe to get syscall args filenames   : Ok
  61: probe libc's inet_pton & backtrace it with ping       : Ok
  62: Check open filename arg using perf trace + vfs_getname: Ok
  63: Add vfs_getname probe to get syscall args filenames   : Ok
  #

  # The static build test works on Fedora 25, is failing on Fedora 26,
  # this issue is being investigated.
  
  $ make -C tools/perf build-test
  make: Entering directory '/home/acme/git/linux/tools/perf'
  - tarpkg: ./tests/perf-targz-src-pkg .
               make_no_slang_O: make NO_SLANG=1
         make_install_prefix_O: make install prefix=/tmp/krava
            make_install_bin_O: make install-bin
                  make_debug_O: make DEBUG=1
              make_clean_all_O: make clean all
   make_install_prefix_slash_O: make install prefix=/tmp/krava/
            make_no_auxtrace_O: make NO_AUXTRACE=1
        make_with_babeltrace_O: make LIBBABELTRACE=1
                make_minimal_O: make NO_LIBPERL=1 NO_LIBPYTHON=1 NO_NEWT=1 NO_GTK2=1 NO_DEMANGLE=1 NO_LIBELF=1 NO_LIBUNWIND=1 NO_BACKTRACE=1 NO_LIBNUMA=1 NO_LIBAUDIT=1 NO_LIBBIONIC=1 NO_LIBDW_DWARF_UNWIND=1 NO_AUXTRACE=1 NO_LIBBPF=1 NO_LIBCRYPTO=1 NO_SDT=1 NO_JVMTI=1
           make_no_libpython_O: make NO_LIBPYTHON=1
            make_no_libaudit_O: make NO_LIBAUDIT=1
                   make_help_O: make help
            make_no_demangle_O: make NO_DEMANGLE=1
  make_no_libdw_dwarf_unwind_O: make NO_LIBDW_DWARF_UNWIND=1
           make_no_libunwind_O: make NO_LIBUNWIND=1
                make_install_O: make install
             make_no_scripts_O: make NO_LIBPYTHON=1 NO_LIBPERL=1
                make_no_newt_O: make NO_NEWT=1
       make_util_pmu_bison_o_O: make util/pmu-bison.o
                 make_perf_o_O: make perf.o
                make_no_gtk2_O: make NO_GTK2=1
                  make_no_ui_O: make NO_NEWT=1 NO_SLANG=1 NO_GTK2=1
              make_no_libbpf_O: make NO_LIBBPF=1
         make_with_clangllvm_O: make LIBCLANGLLVM=1
                   make_tags_O: make tags
             make_util_map_o_O: make util/map.o
                   make_pure_O: make
             make_no_libperl_O: make NO_LIBPERL=1
           make_no_libbionic_O: make NO_LIBBIONIC=1
           make_no_backtrace_O: make NO_BACKTRACE=1
             make_no_libnuma_O: make NO_LIBNUMA=1
              make_no_libelf_O: make NO_LIBELF=1
                    make_doc_O: make doc
  OK
  make: Leaving directory '/home/acme/git/linux/tools/perf'
  $

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@kernel.org> wrote:

> Hi Ingo,
> 
> 	Please consider pulling,
> 
> - Arnaldo
> 
> Test results at the end of this message, as usual.
> 
> The following changes since commit 84e5b549214f2160c12318aac549de85f600c79a:
> 
>   Merge tag 'perf-core-for-mingo-4.11-20170306' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2017-03-07 08:14:14 +0100)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-4.12-20170314
> 
> for you to fetch changes up to 5f6bee34707973ea7879a7857fd63ddccc92fff3:
> 
>   kprobes: Convert kprobe_exceptions_notify to use NOKPROBE_SYMBOL (2017-03-14 15:17:40 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> New features:
> 
> - Add PERF_RECORD_NAMESPACES so that the kernel can record information
>   required to associate samples to namespaces, helping in container
>   problem characterization.
> 
>   Now the 'perf record has a --namespace' option to ask for such info,
>   and when present, it can be used, initially, via a new sort order,
>   'cgroup_id', allowing histogram entry bucketization by a (device, inode)
>   based cgroup identifier (Hari Bathini)
> 
> - Add --next option to 'perf sched timehist', showing what is the next
>   thread to run (Brendan Gregg)
> 
> Fixes:
> 
> - Fix segfault with basic block 'cycles' sort dimension (Changbin Du)
> 
> - Add c2c to command-list.txt, making it appear in the 'perf help'
>   output (Changbin Du)
> 
> - Fix zeroing of 'abs_path' variable in the perf hists browser switch
>   file code (Changbin Du)
> 
> - Hide tips messages when -q/--quiet is given to 'perf report' (Namhyung Kim)
> 
> Infrastructure:
> 
> - Use ref_reloc_sym + offset to setup kretprobes (Naveen Rao)
> 
> - Ignore generated files pmu-events/{jevents,pmu-events.c} for git (Changbin Du)
> 
> Documentation:
> 
> - Document +field style argument support for --field option (Changbin Du)
> 
> - Clarify 'perf c2c --stats' help message (Namhyung Kim)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Brendan Gregg (1):
>       perf sched timehist: Add --next option
> 
> Changbin Du (5):
>       perf tools: Missing c2c command in command-list
>       perf tools: Ignore generated files pmu-events/{jevents,pmu-events.c} for git
>       perf sort: Fix segfault with basic block 'cycles' sort dimension
>       perf report: Document +field style argument support for --field option
>       perf hists browser: Fix typo in function switch_data_file
> 
> Hari Bathini (5):
>       perf: Add PERF_RECORD_NAMESPACES to include namespaces related info
>       perf tools: Add PERF_RECORD_NAMESPACES to include namespaces related info
>       perf record: Synthesize namespace events for current processes
>       perf script: Add script print support for namespace events
>       perf tools: Add 'cgroup_id' sort order keyword
> 
> Namhyung Kim (3):
>       perf report: Hide tip message when -q option is given
>       perf c2c: Clarify help message of --stats option
>       perf c2c: Fix display bug when using pipe
> 
> Naveen N. Rao (5):
>       perf probe: Factor out the ftrace README scanning
>       perf kretprobes: Offset from reloc_sym if kernel supports it
>       perf powerpc: Choose local entry point with kretprobes
>       doc: trace/kprobes: add information about NOKPROBE_SYMBOL
>       kprobes: Convert kprobe_exceptions_notify to use NOKPROBE_SYMBOL
> 
>  Documentation/trace/kprobetrace.txt         |   5 +-
>  include/linux/perf_event.h                  |   2 +
>  include/uapi/linux/perf_event.h             |  32 +++++-
>  kernel/events/core.c                        | 139 ++++++++++++++++++++++++++
>  kernel/fork.c                               |   2 +
>  kernel/kprobes.c                            |   5 +-
>  kernel/nsproxy.c                            |   3 +
>  tools/include/uapi/linux/perf_event.h       |  32 +++++-
>  tools/perf/.gitignore                       |   2 +
>  tools/perf/Documentation/perf-record.txt    |   3 +
>  tools/perf/Documentation/perf-report.txt    |   7 +-
>  tools/perf/Documentation/perf-sched.txt     |   4 +
>  tools/perf/Documentation/perf-script.txt    |   3 +
>  tools/perf/arch/powerpc/util/sym-handling.c |  14 ++-
>  tools/perf/builtin-annotate.c               |   1 +
>  tools/perf/builtin-c2c.c                    |   4 +-
>  tools/perf/builtin-diff.c                   |   1 +
>  tools/perf/builtin-inject.c                 |  13 +++
>  tools/perf/builtin-kmem.c                   |   1 +
>  tools/perf/builtin-kvm.c                    |   2 +
>  tools/perf/builtin-lock.c                   |   1 +
>  tools/perf/builtin-mem.c                    |   1 +
>  tools/perf/builtin-record.c                 |  35 ++++++-
>  tools/perf/builtin-report.c                 |   4 +-
>  tools/perf/builtin-sched.c                  |  26 ++++-
>  tools/perf/builtin-script.c                 |  41 ++++++++
>  tools/perf/builtin-trace.c                  |   3 +-
>  tools/perf/command-list.txt                 |   1 +
>  tools/perf/perf.h                           |   1 +
>  tools/perf/ui/browsers/hists.c              |   2 +-
>  tools/perf/util/Build                       |   1 +
>  tools/perf/util/data-convert-bt.c           |   1 +
>  tools/perf/util/event.c                     | 150 ++++++++++++++++++++++++++--
>  tools/perf/util/event.h                     |  19 ++++
>  tools/perf/util/evsel.c                     |   3 +
>  tools/perf/util/hist.c                      |   7 ++
>  tools/perf/util/hist.h                      |   1 +
>  tools/perf/util/machine.c                   |  34 +++++++
>  tools/perf/util/machine.h                   |   3 +
>  tools/perf/util/namespaces.c                |  36 +++++++
>  tools/perf/util/namespaces.h                |  26 +++++
>  tools/perf/util/probe-event.c               |  12 +--
>  tools/perf/util/probe-file.c                |  77 ++++++++------
>  tools/perf/util/probe-file.h                |   1 +
>  tools/perf/util/session.c                   |   7 ++
>  tools/perf/util/sort.c                      |  46 +++++++++
>  tools/perf/util/sort.h                      |   7 ++
>  tools/perf/util/thread.c                    |  44 +++++++-
>  tools/perf/util/thread.h                    |   6 ++
>  tools/perf/util/tool.h                      |   2 +
>  50 files changed, 799 insertions(+), 74 deletions(-)
>  create mode 100644 tools/perf/util/namespaces.c
>  create mode 100644 tools/perf/util/namespaces.h

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

Test results at the end of this message, as usual.

The following changes since commit 84e5b549214f2160c12318aac549de85f600c79a:

  Merge tag 'perf-core-for-mingo-4.11-20170306' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2017-03-07 08:14:14 +0100)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-4.12-20170314

for you to fetch changes up to 5f6bee34707973ea7879a7857fd63ddccc92fff3:

  kprobes: Convert kprobe_exceptions_notify to use NOKPROBE_SYMBOL (2017-03-14 15:17:40 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

New features:

- Add PERF_RECORD_NAMESPACES so that the kernel can record information
  required to associate samples to namespaces, helping in container
  problem characterization.

  Now the 'perf record has a --namespace' option to ask for such info,
  and when present, it can be used, initially, via a new sort order,
  'cgroup_id', allowing histogram entry bucketization by a (device, inode)
  based cgroup identifier (Hari Bathini)

- Add --next option to 'perf sched timehist', showing what is the next
  thread to run (Brendan Gregg)

Fixes:

- Fix segfault with basic block 'cycles' sort dimension (Changbin Du)

- Add c2c to command-list.txt, making it appear in the 'perf help'
  output (Changbin Du)

- Fix zeroing of 'abs_path' variable in the perf hists browser switch
  file code (Changbin Du)

- Hide tips messages when -q/--quiet is given to 'perf report' (Namhyung Kim)

Infrastructure:

- Use ref_reloc_sym + offset to setup kretprobes (Naveen Rao)

- Ignore generated files pmu-events/{jevents,pmu-events.c} for git (Changbin Du)

Documentation:

- Document +field style argument support for --field option (Changbin Du)

- Clarify 'perf c2c --stats' help message (Namhyung Kim)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Brendan Gregg (1):
      perf sched timehist: Add --next option

Changbin Du (5):
      perf tools: Missing c2c command in command-list
      perf tools: Ignore generated files pmu-events/{jevents,pmu-events.c} for git
      perf sort: Fix segfault with basic block 'cycles' sort dimension
      perf report: Document +field style argument support for --field option
      perf hists browser: Fix typo in function switch_data_file

Hari Bathini (5):
      perf: Add PERF_RECORD_NAMESPACES to include namespaces related info
      perf tools: Add PERF_RECORD_NAMESPACES to include namespaces related info
      perf record: Synthesize namespace events for current processes
      perf script: Add script print support for namespace events
      perf tools: Add 'cgroup_id' sort order keyword

Namhyung Kim (3):
      perf report: Hide tip message when -q option is given
      perf c2c: Clarify help message of --stats option
      perf c2c: Fix display bug when using pipe

Naveen N. Rao (5):
      perf probe: Factor out the ftrace README scanning
      perf kretprobes: Offset from reloc_sym if kernel supports it
      perf powerpc: Choose local entry point with kretprobes
      doc: trace/kprobes: add information about NOKPROBE_SYMBOL
      kprobes: Convert kprobe_exceptions_notify to use NOKPROBE_SYMBOL

 Documentation/trace/kprobetrace.txt         |   5 +-
 include/linux/perf_event.h                  |   2 +
 include/uapi/linux/perf_event.h             |  32 +++++-
 kernel/events/core.c                        | 139 ++++++++++++++++++++++++++
 kernel/fork.c                               |   2 +
 kernel/kprobes.c                            |   5 +-
 kernel/nsproxy.c                            |   3 +
 tools/include/uapi/linux/perf_event.h       |  32 +++++-
 tools/perf/.gitignore                       |   2 +
 tools/perf/Documentation/perf-record.txt    |   3 +
 tools/perf/Documentation/perf-report.txt    |   7 +-
 tools/perf/Documentation/perf-sched.txt     |   4 +
 tools/perf/Documentation/perf-script.txt    |   3 +
 tools/perf/arch/powerpc/util/sym-handling.c |  14 ++-
 tools/perf/builtin-annotate.c               |   1 +
 tools/perf/builtin-c2c.c                    |   4 +-
 tools/perf/builtin-diff.c                   |   1 +
 tools/perf/builtin-inject.c                 |  13 +++
 tools/perf/builtin-kmem.c                   |   1 +
 tools/perf/builtin-kvm.c                    |   2 +
 tools/perf/builtin-lock.c                   |   1 +
 tools/perf/builtin-mem.c                    |   1 +
 tools/perf/builtin-record.c                 |  35 ++++++-
 tools/perf/builtin-report.c                 |   4 +-
 tools/perf/builtin-sched.c                  |  26 ++++-
 tools/perf/builtin-script.c                 |  41 ++++++++
 tools/perf/builtin-trace.c                  |   3 +-
 tools/perf/command-list.txt                 |   1 +
 tools/perf/perf.h                           |   1 +
 tools/perf/ui/browsers/hists.c              |   2 +-
 tools/perf/util/Build                       |   1 +
 tools/perf/util/data-convert-bt.c           |   1 +
 tools/perf/util/event.c                     | 150 ++++++++++++++++++++++++++--
 tools/perf/util/event.h                     |  19 ++++
 tools/perf/util/evsel.c                     |   3 +
 tools/perf/util/hist.c                      |   7 ++
 tools/perf/util/hist.h                      |   1 +
 tools/perf/util/machine.c                   |  34 +++++++
 tools/perf/util/machine.h                   |   3 +
 tools/perf/util/namespaces.c                |  36 +++++++
 tools/perf/util/namespaces.h                |  26 +++++
 tools/perf/util/probe-event.c               |  12 +--
 tools/perf/util/probe-file.c                |  77 ++++++++------
 tools/perf/util/probe-file.h                |   1 +
 tools/perf/util/session.c                   |   7 ++
 tools/perf/util/sort.c                      |  46 +++++++++
 tools/perf/util/sort.h                      |   7 ++
 tools/perf/util/thread.c                    |  44 +++++++-
 tools/perf/util/thread.h                    |   6 ++
 tools/perf/util/tool.h                      |   2 +
 50 files changed, 799 insertions(+), 74 deletions(-)
 create mode 100644 tools/perf/util/namespaces.c
 create mode 100644 tools/perf/util/namespaces.h

Test results:

The first ones are container (docker) based builds of tools/perf with and
without libelf support, objtool where it is supported and samples/bpf/, ditto.
Where clang is available, it is also used to build perf with/without libelf.

Several are cross builds, the ones with -x-ARCH, and the android one, and those
may not have all the features built, due to lack of multi-arch devel packages,
available and being used so far on just a few, like
debian:experimental-x-{arm64,mipsel}.

The 'perf test' one will perform a variety of tests exercising
tools/perf/util/, tools/lib/{bpf,traceevent,etc}, as well as run perf commands
with a variety of command line event specifications to then intercept the
sys_perf_event syscall to check that the perf_event_attr fields are set up as
expected, among a variety of other unit tests.

Then there is the 'make -C tools/perf build-test' ones, that build tools/perf/
with a variety of feature sets, exercising the build with an incomplete set of
features as well as with a complete one. It is planned to have it run on each
of the containers mentioned above, using some container orchestration
infrastructure. Get in contact if interested in helping having this in place.

  # dm
   1 alpine:3.4: Ok
   2 alpine:3.5: Ok
   3 alpine:edge: Ok
   4 android-ndk:r12b-arm: Ok
   5 archlinux:latest: Ok
   6 centos:5: Ok
   7 centos:6: Ok
   8 centos:7: Ok
   9 debian:7: Ok
  10 debian:8: Ok
  11 debian:experimental: Ok
  12 debian:experimental-x-arm64: Ok
  13 debian:experimental-x-mips: Ok
  14 debian:experimental-x-mips64: Ok
  15 debian:experimental-x-mipsel: Ok
  16 fedora:20: Ok
  17 fedora:21: Ok
  18 fedora:22: Ok
  19 fedora:23: Ok
  20 fedora:24: Ok
  21 fedora:24-x-ARC-uClibc: Ok
  22 fedora:25: Ok
  23 fedora:rawhide: Ok
  24 mageia:5: Ok
  25 opensuse:13.2: Ok
  26 opensuse:42.1: Ok
  27 opensuse:tumbleweed: Ok
  28 ubuntu:12.04.5: Ok
  29 ubuntu:14.04.4: Ok
  30 ubuntu:14.04.4-x-linaro-arm64: Ok
  31 ubuntu:15.10: Ok
  32 ubuntu:16.04: Ok
  33 ubuntu:16.04-x-arm: Ok
  34 ubuntu:16.04-x-arm64: Ok
  35 ubuntu:16.04-x-powerpc: Ok
  36 ubuntu:16.04-x-powerpc64: Ok
  37 ubuntu:16.04-x-s390: Ok
  38 ubuntu:16.10: Ok
  39 ubuntu:17.04: Ok
  #

  # uname -a
  Linux zoo 4.9.13-100.fc24.x86_64 #1 SMP Mon Feb 27 16:57:22 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
  # perf test
   1: vmlinux symtab matches kallsyms            : Ok
   2: Detect openat syscall event                : Ok
   3: Detect openat syscall event on all cpus    : Ok
   4: Read samples using the mmap interface      : Ok
   5: Parse event definition strings             : Ok
   6: PERF_RECORD_* events & perf_sample fields  : Ok
   7: Parse perf pmu format                      : Ok
   8: DSO data read                              : Ok
   9: DSO data cache                             : Ok
  10: DSO data reopen                            : Ok
  11: Roundtrip evsel->name                      : Ok
  12: Parse sched tracepoints fields             : Ok
  13: syscalls:sys_enter_openat event fields     : Ok
  14: Setup struct perf_event_attr               : Ok
  15: Match and link multiple hists              : Ok
  16: 'import perf' in python                    : Ok
  17: Breakpoint overflow signal handler         : Ok
  18: Breakpoint overflow sampling               : Ok
  19: Number of exit events of a simple workload : Ok
  20: Software clock events period values        : Ok
  21: Object code reading                        : Ok
  22: Sample parsing                             : Ok
  23: Use a dummy software event to keep tracking: Ok
  24: Parse with no sample_id_all bit set        : Ok
  25: Filter hist entries                        : Ok
  26: Lookup mmap thread                         : Ok
  27: Share thread mg                            : Ok
  28: Sort output of hist entries                : Ok
  29: Cumulate child hist entries                : Ok
  30: Track with sched_switch                    : Ok
  31: Filter fds with revents mask in a fdarray  : Ok
  32: Add fd to a fdarray, making it autogrow    : Ok
  33: kmod_path__parse                           : Ok
  34: Thread map                                 : Ok
  35: LLVM search and compile                    :
  35.1: Basic BPF llvm compile                    : Ok
  35.2: kbuild searching                          : Ok
  35.3: Compile source for BPF prologue generation: Ok
  35.4: Compile source for BPF relocation         : Ok
  36: Session topology                           : Ok
  37: BPF filter                                 :
  37.1: Basic BPF filtering                      : Ok
  37.2: BPF pinning                              : Ok
  37.3: BPF prologue generation                  : Ok
  37.4: BPF relocation checker                   : Ok
  38: Synthesize thread map                      : Ok
  39: Remove thread map                          : Ok
  40: Synthesize cpu map                         : Ok
  41: Synthesize stat config                     : Ok
  42: Synthesize stat                            : Ok
  43: Synthesize stat round                      : Ok
  44: Synthesize attr update                     : Ok
  45: Event times                                : Ok
  46: Read backward ring buffer                  : Ok
  47: Print cpu map                              : Ok
  48: Probe SDT events                           : Ok
  49: is_printable_array                         : Ok
  50: Print bitmap                               : Ok
  51: perf hooks                                 : Ok
  52: builtin clang support                      : Skip (not compiled in)
  53: unit_number__scnprintf                     : Ok
  54: x86 rdpmc                                  : Ok
  55: Convert perf time to TSC                   : Ok
  56: DWARF unwind                               : Ok
  57: x86 instruction decoder - new instructions : Ok
  58: Intel cqm nmi context read                 : Skip
  # 

  $ make -C tools/perf build-test
  make: Entering directory '/home/acme/git/linux/tools/perf'
  - tarpkg: ./tests/perf-targz-src-pkg .
                  make_no_ui_O: make NO_NEWT=1 NO_SLANG=1 NO_GTK2=1
                  make_debug_O: make DEBUG=1
              make_no_libelf_O: make NO_LIBELF=1
           make_no_libbionic_O: make NO_LIBBIONIC=1
            make_no_libaudit_O: make NO_LIBAUDIT=1
                   make_pure_O: make
              make_no_libbpf_O: make NO_LIBBPF=1
                   make_tags_O: make tags
        make_with_babeltrace_O: make LIBBABELTRACE=1
         make_with_clangllvm_O: make LIBCLANGLLVM=1
            make_no_auxtrace_O: make NO_AUXTRACE=1
                 make_perf_o_O: make perf.o
            make_no_demangle_O: make NO_DEMANGLE=1
              make_clean_all_O: make clean all
               make_no_slang_O: make NO_SLANG=1
                    make_doc_O: make doc
                make_no_newt_O: make NO_NEWT=1
           make_no_libpython_O: make NO_LIBPYTHON=1
       make_util_pmu_bison_o_O: make util/pmu-bison.o
            make_install_bin_O: make install-bin
                make_no_gtk2_O: make NO_GTK2=1
           make_no_backtrace_O: make NO_BACKTRACE=1
             make_no_libnuma_O: make NO_LIBNUMA=1
  make_no_libdw_dwarf_unwind_O: make NO_LIBDW_DWARF_UNWIND=1
             make_util_map_o_O: make util/map.o
             make_no_libperl_O: make NO_LIBPERL=1
                 make_static_O: make LDFLAGS=-static
           make_no_libunwind_O: make NO_LIBUNWIND=1
                make_minimal_O: make NO_LIBPERL=1 NO_LIBPYTHON=1 NO_NEWT=1 NO_GTK2=1 NO_DEMANGLE=1 NO_LIBELF=1 NO_LIBUNWIND=1 NO_BACKTRACE=1 NO_LIBNUMA=1 NO_LIBAUDIT=1 NO_LIBBIONIC=1 NO_LIBDW_DWARF_UNWIND=1 NO_AUXTRACE=1 NO_LIBBPF=1 NO_LIBCRYPTO=1 NO_SDT=1 NO_JVMTI=1
                   make_help_O: make help
             make_no_scripts_O: make NO_LIBPYTHON=1 NO_LIBPERL=1
  OK
  $

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@kernel.org> wrote:

> Hi Ingo,
> 
> 	Please consider pulling,
> 
> - Arnaldo
> 
> Test results at the end of this message, as usual.
> 
> The following changes since commit 2471cece40d61b0035360338569d338f9dea6099:
> 
>   Merge tag 'perf-core-for-mingo-20161125' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2016-11-25 18:12:41 +0100)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-20161201
> 
> for you to fetch changes up to 0fcb1da4aba6e6c7b32de5e0948b740b31ad822d:
> 
>   perf annotate: AArch64 support (2016-12-01 13:03:19 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> New features:
> 
> - Support AArch64 in the 'annotate' code, native/local and
>   cross-arch/remote (Kim Phillips)
> 
> - Allow considering just events in a given time interval, via the
>   '--time start.s.ms,end.s.ms' command line, added to 'perf kmem',
>   'perf report', 'perf sched timehist' and 'perf script' (David Ahern)
> 
> - Add option to stop printing a callchain at one of a given group of
>   symbol names (David Ahern)
> 
> - Handle cpu migration events in 'perf sched timehist' (David Ahern)
> 
> - Track memory freed in 'perf kmem stat' (David Ahern)
> 
> Infrastructure:
> 
> - Initial support (and perf test entry) for tooling hooks, starting with
>   'record_start' and 'record_end', that will have as its initial user the
>   eBPF infrastructure, where perf_ prefixed functions will be JITed and
>   run when such hooks are called (Wang Nan)
> 
> - Remove redundant "test" and similar strings from 'perf test' descriptions
>   (Arnaldo Carvalho de Melo)
> 
> - libbpf assorted improvements (Wang Nan)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (3):
>       perf ui helpline: Provide a printf variant
>       perf annotate: Show invalid jump offset in error message
>       perf test: Remove "test" and similar strings from test descriptions
> 
> David Ahern (10):
>       perf sched timehist: Handle cpu migration events
>       perf trace: Update tid/pid filtering option to leverage symbol_conf
>       perf kmem stat: Track memory freed
>       perf script: Add option to stop printing callchain
>       perf tools: Add time-based utility functions
>       perf tools: Move parse_nsec_time to time-utils.c
>       perf script: Add option to specify time window of interest
>       perf sched timehist: Add option to specify time window of interest
>       perf kmem: Add option to specify time window of interest
>       perf report: Add option to specify time window of interest
> 
> Kim Phillips (2):
>       perf annotate: Use arch->objdump.comment_char in dec__parse()
>       perf annotate: AArch64 support
> 
> Wang Nan (4):
>       tools lib bpf: Add missing BPF functions
>       tools lib bpf: Add private field for bpf_object
>       tools lib bpf: Retrive bpf_map through offset of bpf_map_def
>       perf tools: Introduce perf hooks
> 
>  tools/lib/bpf/bpf.c                           |  56 ++++++++++
>  tools/lib/bpf/bpf.h                           |   7 ++
>  tools/lib/bpf/libbpf.c                        |  35 ++++++
>  tools/lib/bpf/libbpf.h                        |  13 +++
>  tools/perf/Documentation/perf-kmem.txt        |   7 ++
>  tools/perf/Documentation/perf-report.txt      |   7 ++
>  tools/perf/Documentation/perf-sched.txt       |  12 +++
>  tools/perf/Documentation/perf-script.txt      |  10 ++
>  tools/perf/arch/arm64/annotate/instructions.c |  62 +++++++++++
>  tools/perf/arch/x86/tests/arch-tests.c        |  10 +-
>  tools/perf/builtin-kmem.c                     |  36 ++++++-
>  tools/perf/builtin-record.c                   |  11 ++
>  tools/perf/builtin-report.c                   |  14 ++-
>  tools/perf/builtin-sched.c                    | 148 ++++++++++++++++++++++++--
>  tools/perf/builtin-script.c                   |  17 ++-
>  tools/perf/builtin-trace.c                    |  49 ++-------
>  tools/perf/tests/Build                        |   1 +
>  tools/perf/tests/bpf.c                        |   6 +-
>  tools/perf/tests/builtin-test.c               |  96 +++++++++--------
>  tools/perf/tests/llvm.c                       |   8 +-
>  tools/perf/tests/perf-hooks.c                 |  44 ++++++++
>  tools/perf/tests/tests.h                      |   1 +
>  tools/perf/ui/browsers/annotate.c             |   6 +-
>  tools/perf/ui/helpline.c                      |  10 ++
>  tools/perf/ui/helpline.h                      |   1 +
>  tools/perf/util/Build                         |   3 +
>  tools/perf/util/annotate.c                    |   7 +-
>  tools/perf/util/evsel_fprintf.c               |   8 ++
>  tools/perf/util/perf-hooks-list.h             |   3 +
>  tools/perf/util/perf-hooks.c                  |  84 +++++++++++++++
>  tools/perf/util/perf-hooks.h                  |  37 +++++++
>  tools/perf/util/symbol.c                      |   8 ++
>  tools/perf/util/symbol.h                      |   6 +-
>  tools/perf/util/time-utils.c                  | 119 +++++++++++++++++++++
>  tools/perf/util/time-utils.h                  |  14 +++
>  tools/perf/util/util.c                        |  33 ------
>  tools/perf/util/util.h                        |   2 -
>  37 files changed, 842 insertions(+), 149 deletions(-)
>  create mode 100644 tools/perf/arch/arm64/annotate/instructions.c
>  create mode 100644 tools/perf/tests/perf-hooks.c
>  create mode 100644 tools/perf/util/perf-hooks-list.h
>  create mode 100644 tools/perf/util/perf-hooks.c
>  create mode 100644 tools/perf/util/perf-hooks.h
>  create mode 100644 tools/perf/util/time-utils.c
>  create mode 100644 tools/perf/util/time-utils.h
> 
>   # uname -a
>   Linux jouet 4.8.8-300.fc25.x86_64 #1 SMP Tue Nov 15 18:10:06 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
>   # perf test
>    1: vmlinux symtab matches kallsyms            : Ok
>    2: Detect openat syscall event                : Ok
>    3: Detect openat syscall event on all cpus    : Ok
>    4: Read samples using the mmap interface      : Ok
>    5: Parse event definition strings             : Ok
>    6: PERF_RECORD_* events & perf_sample fields  : Ok
>    7: Parse perf pmu format                      : Ok
>    8: DSO data read                              : Ok
>    9: DSO data cache                             : Ok
>   10: DSO data reopen                            : Ok
>   11: Roundtrip evsel->name                      : Ok
>   12: Parse sched tracepoints fields             : Ok
>   13: syscalls:sys_enter_openat event fields     : Ok
>   14: Setup struct perf_event_attr               : Ok
>   15: Match and link multiple hists              : Ok
>   16: 'import perf' in python                    : Ok
>   17: Breakpoint overflow signal handler         : Ok
>   18: Breakpoint overflow sampling               : Ok
>   19: Number of exit events of a simple workload : Ok
>   20: Software clock events period values        : Ok
>   21: Object code reading                        : Ok
>   22: Sample parsing                             : Ok
>   23: Use a dummy software event to keep tracking: Ok
>   24: Parse with no sample_id_all bit set        : Ok
>   25: Filter hist entries                        : Ok
>   26: Lookup mmap thread                         : Ok
>   27: Share thread mg                            : Ok
>   28: Sort output of hist entries                : Ok
>   29: Cumulate child hist entries                : Ok
>   30: Track with sched_switch                    : Ok
>   31: Filter fds with revents mask in a fdarray  : Ok
>   32: Add fd to a fdarray, making it autogrow    : Ok
>   33: kmod_path__parse                           : Ok
>   34: Thread map                                 : Ok
>   35: LLVM search and compile                    :
>   35.1: Basic BPF llvm compile                    : Ok
>   35.2: kbuild searching                          : Ok
>   35.3: Compile source for BPF prologue generation: Ok
>   35.4: Compile source for BPF relocation         : Ok
>   36: Session topology                           : Ok
>   37: BPF filter                                 :
>   37.1: Basic BPF filtering                      : Ok
>   37.2: BPF prologue generation                  : Ok
>   37.3: BPF relocation checker                   : Ok
>   38: Synthesize thread map                      : Ok
>   39: Synthesize cpu map                         : Ok
>   40: Synthesize stat config                     : Ok
>   41: Synthesize stat                            : Ok
>   42: Synthesize stat round                      : Ok
>   43: Synthesize attr update                     : Ok
>   44: Event times                                : Ok
>   45: Read backward ring buffer                  : Ok
>   46: Print cpu map                              : Ok
>   47: Probe SDT events                           : Ok
>   48: is_printable_array                         : Ok
>   49: Print bitmap                               : Ok
>   50: perf hooks                                 : Ok
>   51: x86 rdpmc                                  : Ok
>   52: Convert perf time to TSC                   : Ok
>   53: DWARF unwind                               : Ok
>   54: x86 instruction decoder - new instructions : Ok
>   55: Intel cqm nmi context read                 : Skip
>   # 
>   # uname -a
>   Linux zoo 4.7.3-200.fc24.x86_64 #1 SMP Wed Sep 7 17:31:21 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
>   # dm
>    1 alpine:3.4: Ok
>    2 android-ndk:r12b-arm: Ok
>    3 archlinux:latest: Ok
>    4 centos:5: Ok
>    5 centos:6: Ok
>    6 centos:7: Ok
>    7 debian:7: Ok
>    8 debian:8: Ok
>    9 debian:experimental: Ok
>   10 fedora:20: Ok
>   11 fedora:21: Ok
>   12 fedora:22: Ok
>   13 fedora:23: Ok
>   14 fedora:24: Ok
>   15 fedora:24-x-ARC-uClibc: Ok
>   16 fedora:rawhide: Ok
>   17 mageia:5: Ok
>   18 opensuse:13.2: Ok
>   19 opensuse:42.1: Ok
>   20 opensuse:tumbleweed: Ok
>   21 ubuntu:12.04.5: Ok
>   22 ubuntu:14.04: Ok
>   23 ubuntu:14.04.4: Ok
>   24 ubuntu:15.10: Ok
>   25 ubuntu:16.04: Ok
>   26 ubuntu:16.04-x-arm: Ok
>   27 ubuntu:16.04-x-arm64: Ok
>   28 ubuntu:16.04-x-powerpc: Ok
>   29 ubuntu:16.04-x-powerpc64: Ok
>   30 ubuntu:16.04-x-powerpc64el: Ok
>   31 ubuntu:16.04-x-s390: Ok
>   32 ubuntu:16.10: Ok
>   #
>   $ grep PRETTY_NAME /etc/os-release 
>   PRETTY_NAME="Fedora 25 (Workstation Edition)"
>   $ 
>   $ perf stat make -C tools/perf build-test
>   make: Entering directory '/home/acme/git/linux/tools/perf'
>   - tarpkg: ./tests/perf-targz-src-pkg .
>                make_no_slang_O: make NO_SLANG=1
>              make_util_map_o_O: make util/map.o
>                  make_static_O: make LDFLAGS=-static
>   make_no_libdw_dwarf_unwind_O: make NO_LIBDW_DWARF_UNWIND=1
>                  make_perf_o_O: make perf.o
>            make_no_libunwind_O: make NO_LIBUNWIND=1
>               make_no_libelf_O: make NO_LIBELF=1
>        make_util_pmu_bison_o_O: make util/pmu-bison.o
>            make_no_backtrace_O: make NO_BACKTRACE=1
>                   make_no_ui_O: make NO_NEWT=1 NO_SLANG=1 NO_GTK2=1
>             make_no_demangle_O: make NO_DEMANGLE=1
>              make_no_libperl_O: make NO_LIBPERL=1
>                    make_tags_O: make tags
>              make_no_scripts_O: make NO_LIBPYTHON=1 NO_LIBPERL=1
>    make_install_prefix_slash_O: make install prefix=/tmp/krava/
>             make_no_auxtrace_O: make NO_AUXTRACE=1
>              make_no_libnuma_O: make NO_LIBNUMA=1
>             make_install_bin_O: make install-bin
>                 make_no_newt_O: make NO_NEWT=1
>                    make_pure_O: make
>                 make_minimal_O: make NO_LIBPERL=1 NO_LIBPYTHON=1 NO_NEWT=1 NO_GTK2=1 NO_DEMANGLE=1 NO_LIBELF=1 NO_LIBUNWIND=1 NO_BACKTRACE=1 NO_LIBNUMA=1 NO_LIBAUDIT=1 NO_LIBBIONIC=1 NO_LIBDW_DWARF_UNWIND=1 NO_AUXTRACE=1 NO_LIBBPF=1 NO_LIBCRYPTO=1 NO_SDT=1 NO_JVMTI=1
>               make_clean_all_O: make clean all
>                 make_no_gtk2_O: make NO_GTK2=1
>            make_no_libbionic_O: make NO_LIBBIONIC=1
>          make_install_prefix_O: make install prefix=/tmp/krava
>               make_no_libbpf_O: make NO_LIBBPF=1
>             make_no_libaudit_O: make NO_LIBAUDIT=1
>         make_with_babeltrace_O: make LIBBABELTRACE=1
>            make_no_libpython_O: make NO_LIBPYTHON=1
>                    make_help_O: make help
>                     make_doc_O: make doc
>                   make_debug_O: make DEBUG=1
>                 make_install_O: make install
>   OK
>   make: Leaving directory '/home/acme/git/linux/tools/perf'
>   $ 
>   

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

Test results at the end of this message, as usual.

The following changes since commit 2471cece40d61b0035360338569d338f9dea6099:

  Merge tag 'perf-core-for-mingo-20161125' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2016-11-25 18:12:41 +0100)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-20161201

for you to fetch changes up to 0fcb1da4aba6e6c7b32de5e0948b740b31ad822d:

  perf annotate: AArch64 support (2016-12-01 13:03:19 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

New features:

- Support AArch64 in the 'annotate' code, native/local and
  cross-arch/remote (Kim Phillips)

- Allow considering just events in a given time interval, via the
  '--time start.s.ms,end.s.ms' command line, added to 'perf kmem',
  'perf report', 'perf sched timehist' and 'perf script' (David Ahern)

- Add option to stop printing a callchain at one of a given group of
  symbol names (David Ahern)

- Handle cpu migration events in 'perf sched timehist' (David Ahern)

- Track memory freed in 'perf kmem stat' (David Ahern)

Infrastructure:

- Initial support (and perf test entry) for tooling hooks, starting with
  'record_start' and 'record_end', that will have as its initial user the
  eBPF infrastructure, where perf_ prefixed functions will be JITed and
  run when such hooks are called (Wang Nan)

- Remove redundant "test" and similar strings from 'perf test' descriptions
  (Arnaldo Carvalho de Melo)

- libbpf assorted improvements (Wang Nan)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Arnaldo Carvalho de Melo (3):
      perf ui helpline: Provide a printf variant
      perf annotate: Show invalid jump offset in error message
      perf test: Remove "test" and similar strings from test descriptions

David Ahern (10):
      perf sched timehist: Handle cpu migration events
      perf trace: Update tid/pid filtering option to leverage symbol_conf
      perf kmem stat: Track memory freed
      perf script: Add option to stop printing callchain
      perf tools: Add time-based utility functions
      perf tools: Move parse_nsec_time to time-utils.c
      perf script: Add option to specify time window of interest
      perf sched timehist: Add option to specify time window of interest
      perf kmem: Add option to specify time window of interest
      perf report: Add option to specify time window of interest

Kim Phillips (2):
      perf annotate: Use arch->objdump.comment_char in dec__parse()
      perf annotate: AArch64 support

Wang Nan (4):
      tools lib bpf: Add missing BPF functions
      tools lib bpf: Add private field for bpf_object
      tools lib bpf: Retrive bpf_map through offset of bpf_map_def
      perf tools: Introduce perf hooks

 tools/lib/bpf/bpf.c                           |  56 ++++++++++
 tools/lib/bpf/bpf.h                           |   7 ++
 tools/lib/bpf/libbpf.c                        |  35 ++++++
 tools/lib/bpf/libbpf.h                        |  13 +++
 tools/perf/Documentation/perf-kmem.txt        |   7 ++
 tools/perf/Documentation/perf-report.txt      |   7 ++
 tools/perf/Documentation/perf-sched.txt       |  12 +++
 tools/perf/Documentation/perf-script.txt      |  10 ++
 tools/perf/arch/arm64/annotate/instructions.c |  62 +++++++++++
 tools/perf/arch/x86/tests/arch-tests.c        |  10 +-
 tools/perf/builtin-kmem.c                     |  36 ++++++-
 tools/perf/builtin-record.c                   |  11 ++
 tools/perf/builtin-report.c                   |  14 ++-
 tools/perf/builtin-sched.c                    | 148 ++++++++++++++++++++++++--
 tools/perf/builtin-script.c                   |  17 ++-
 tools/perf/builtin-trace.c                    |  49 ++-------
 tools/perf/tests/Build                        |   1 +
 tools/perf/tests/bpf.c                        |   6 +-
 tools/perf/tests/builtin-test.c               |  96 +++++++++--------
 tools/perf/tests/llvm.c                       |   8 +-
 tools/perf/tests/perf-hooks.c                 |  44 ++++++++
 tools/perf/tests/tests.h                      |   1 +
 tools/perf/ui/browsers/annotate.c             |   6 +-
 tools/perf/ui/helpline.c                      |  10 ++
 tools/perf/ui/helpline.h                      |   1 +
 tools/perf/util/Build                         |   3 +
 tools/perf/util/annotate.c                    |   7 +-
 tools/perf/util/evsel_fprintf.c               |   8 ++
 tools/perf/util/perf-hooks-list.h             |   3 +
 tools/perf/util/perf-hooks.c                  |  84 +++++++++++++++
 tools/perf/util/perf-hooks.h                  |  37 +++++++
 tools/perf/util/symbol.c                      |   8 ++
 tools/perf/util/symbol.h                      |   6 +-
 tools/perf/util/time-utils.c                  | 119 +++++++++++++++++++++
 tools/perf/util/time-utils.h                  |  14 +++
 tools/perf/util/util.c                        |  33 ------
 tools/perf/util/util.h                        |   2 -
 37 files changed, 842 insertions(+), 149 deletions(-)
 create mode 100644 tools/perf/arch/arm64/annotate/instructions.c
 create mode 100644 tools/perf/tests/perf-hooks.c
 create mode 100644 tools/perf/util/perf-hooks-list.h
 create mode 100644 tools/perf/util/perf-hooks.c
 create mode 100644 tools/perf/util/perf-hooks.h
 create mode 100644 tools/perf/util/time-utils.c
 create mode 100644 tools/perf/util/time-utils.h

  # uname -a
  Linux jouet 4.8.8-300.fc25.x86_64 #1 SMP Tue Nov 15 18:10:06 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
  # perf test
   1: vmlinux symtab matches kallsyms            : Ok
   2: Detect openat syscall event                : Ok
   3: Detect openat syscall event on all cpus    : Ok
   4: Read samples using the mmap interface      : Ok
   5: Parse event definition strings             : Ok
   6: PERF_RECORD_* events & perf_sample fields  : Ok
   7: Parse perf pmu format                      : Ok
   8: DSO data read                              : Ok
   9: DSO data cache                             : Ok
  10: DSO data reopen                            : Ok
  11: Roundtrip evsel->name                      : Ok
  12: Parse sched tracepoints fields             : Ok
  13: syscalls:sys_enter_openat event fields     : Ok
  14: Setup struct perf_event_attr               : Ok
  15: Match and link multiple hists              : Ok
  16: 'import perf' in python                    : Ok
  17: Breakpoint overflow signal handler         : Ok
  18: Breakpoint overflow sampling               : Ok
  19: Number of exit events of a simple workload : Ok
  20: Software clock events period values        : Ok
  21: Object code reading                        : Ok
  22: Sample parsing                             : Ok
  23: Use a dummy software event to keep tracking: Ok
  24: Parse with no sample_id_all bit set        : Ok
  25: Filter hist entries                        : Ok
  26: Lookup mmap thread                         : Ok
  27: Share thread mg                            : Ok
  28: Sort output of hist entries                : Ok
  29: Cumulate child hist entries                : Ok
  30: Track with sched_switch                    : Ok
  31: Filter fds with revents mask in a fdarray  : Ok
  32: Add fd to a fdarray, making it autogrow    : Ok
  33: kmod_path__parse                           : Ok
  34: Thread map                                 : Ok
  35: LLVM search and compile                    :
  35.1: Basic BPF llvm compile                    : Ok
  35.2: kbuild searching                          : Ok
  35.3: Compile source for BPF prologue generation: Ok
  35.4: Compile source for BPF relocation         : Ok
  36: Session topology                           : Ok
  37: BPF filter                                 :
  37.1: Basic BPF filtering                      : Ok
  37.2: BPF prologue generation                  : Ok
  37.3: BPF relocation checker                   : Ok
  38: Synthesize thread map                      : Ok
  39: Synthesize cpu map                         : Ok
  40: Synthesize stat config                     : Ok
  41: Synthesize stat                            : Ok
  42: Synthesize stat round                      : Ok
  43: Synthesize attr update                     : Ok
  44: Event times                                : Ok
  45: Read backward ring buffer                  : Ok
  46: Print cpu map                              : Ok
  47: Probe SDT events                           : Ok
  48: is_printable_array                         : Ok
  49: Print bitmap                               : Ok
  50: perf hooks                                 : Ok
  51: x86 rdpmc                                  : Ok
  52: Convert perf time to TSC                   : Ok
  53: DWARF unwind                               : Ok
  54: x86 instruction decoder - new instructions : Ok
  55: Intel cqm nmi context read                 : Skip
  # 
  # uname -a
  Linux zoo 4.7.3-200.fc24.x86_64 #1 SMP Wed Sep 7 17:31:21 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
  # dm
   1 alpine:3.4: Ok
   2 android-ndk:r12b-arm: Ok
   3 archlinux:latest: Ok
   4 centos:5: Ok
   5 centos:6: Ok
   6 centos:7: Ok
   7 debian:7: Ok
   8 debian:8: Ok
   9 debian:experimental: Ok
  10 fedora:20: Ok
  11 fedora:21: Ok
  12 fedora:22: Ok
  13 fedora:23: Ok
  14 fedora:24: Ok
  15 fedora:24-x-ARC-uClibc: Ok
  16 fedora:rawhide: Ok
  17 mageia:5: Ok
  18 opensuse:13.2: Ok
  19 opensuse:42.1: Ok
  20 opensuse:tumbleweed: Ok
  21 ubuntu:12.04.5: Ok
  22 ubuntu:14.04: Ok
  23 ubuntu:14.04.4: Ok
  24 ubuntu:15.10: Ok
  25 ubuntu:16.04: Ok
  26 ubuntu:16.04-x-arm: Ok
  27 ubuntu:16.04-x-arm64: Ok
  28 ubuntu:16.04-x-powerpc: Ok
  29 ubuntu:16.04-x-powerpc64: Ok
  30 ubuntu:16.04-x-powerpc64el: Ok
  31 ubuntu:16.04-x-s390: Ok
  32 ubuntu:16.10: Ok
  #
  $ grep PRETTY_NAME /etc/os-release 
  PRETTY_NAME="Fedora 25 (Workstation Edition)"
  $ 
  $ perf stat make -C tools/perf build-test
  make: Entering directory '/home/acme/git/linux/tools/perf'
  - tarpkg: ./tests/perf-targz-src-pkg .
               make_no_slang_O: make NO_SLANG=1
             make_util_map_o_O: make util/map.o
                 make_static_O: make LDFLAGS=-static
  make_no_libdw_dwarf_unwind_O: make NO_LIBDW_DWARF_UNWIND=1
                 make_perf_o_O: make perf.o
           make_no_libunwind_O: make NO_LIBUNWIND=1
              make_no_libelf_O: make NO_LIBELF=1
       make_util_pmu_bison_o_O: make util/pmu-bison.o
           make_no_backtrace_O: make NO_BACKTRACE=1
                  make_no_ui_O: make NO_NEWT=1 NO_SLANG=1 NO_GTK2=1
            make_no_demangle_O: make NO_DEMANGLE=1
             make_no_libperl_O: make NO_LIBPERL=1
                   make_tags_O: make tags
             make_no_scripts_O: make NO_LIBPYTHON=1 NO_LIBPERL=1
   make_install_prefix_slash_O: make install prefix=/tmp/krava/
            make_no_auxtrace_O: make NO_AUXTRACE=1
             make_no_libnuma_O: make NO_LIBNUMA=1
            make_install_bin_O: make install-bin
                make_no_newt_O: make NO_NEWT=1
                   make_pure_O: make
                make_minimal_O: make NO_LIBPERL=1 NO_LIBPYTHON=1 NO_NEWT=1 NO_GTK2=1 NO_DEMANGLE=1 NO_LIBELF=1 NO_LIBUNWIND=1 NO_BACKTRACE=1 NO_LIBNUMA=1 NO_LIBAUDIT=1 NO_LIBBIONIC=1 NO_LIBDW_DWARF_UNWIND=1 NO_AUXTRACE=1 NO_LIBBPF=1 NO_LIBCRYPTO=1 NO_SDT=1 NO_JVMTI=1
              make_clean_all_O: make clean all
                make_no_gtk2_O: make NO_GTK2=1
           make_no_libbionic_O: make NO_LIBBIONIC=1
         make_install_prefix_O: make install prefix=/tmp/krava
              make_no_libbpf_O: make NO_LIBBPF=1
            make_no_libaudit_O: make NO_LIBAUDIT=1
        make_with_babeltrace_O: make LIBBABELTRACE=1
           make_no_libpython_O: make NO_LIBPYTHON=1
                   make_help_O: make help
                    make_doc_O: make doc
                  make_debug_O: make DEBUG=1
                make_install_O: make install
  OK
  make: Leaving directory '/home/acme/git/linux/tools/perf'
  $ 
  

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@kernel.org> wrote:

> Hi Ingo,
> 
> 	Please consider pulling,
> 
> I've added building objtool to most of the containers in my build test setup:
> 
> [root@jouet ~]# perf stat dm
> alpine:3.4: Ok
> centos:5: Ok
> centos:6: Ok
> centos:7: Ok
> debian:7: Ok
> debian:8: Ok
> debian:experimental: Ok
> fedora:21: Ok
> fedora:22: Ok
> fedora:23: Ok
> fedora:24: Ok
> fedora:rawhide: Ok
> mageia:5: Ok
> opensuse:13.2: Ok
> opensuse:42.1: Ok
> ubuntu:12.04.5: Ok
> ubuntu:14.04.4: Ok
> ubuntu:15.10: Ok
> ubuntu:16.04: Ok
> 
>  Performance counter stats for 'dm':
> 
>        2601.121782      task-clock (msec)         #    0.002 CPUs utilized          
>             86,368      context-switches          #    0.033 M/sec                  
>              5,740      cpu-migrations            #    0.002 M/sec                  
>             53,962      page-faults               #    0.021 M/sec                  
>      7,217,605,183      cycles                    #    2.775 GHz                    
>      6,534,540,119      instructions              #    0.91  insn per cycle         
>      1,408,715,184      branches                  #  541.580 M/sec                  
>         18,523,459      branch-misses             #    1.31% of all branches        
> 
>     1541.746171526 seconds time elapsed
> 
> [root@jouet ~]# 
> 
> - Arnaldo
> 
> The following changes since commit 7b39cafb7aa68ef8e32a9f51fbe737d96084ca74:
> 
>   tools: Work around BITS_PER_LONG related build failure in objtool (2016-07-13 09:37:43 +0200)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-20160713
> 
> for you to fetch changes up to 8e5dc848356ecf6ea8d27d641c4d7ad8d42fe92b:
> 
>   perf test: Add a test case for SDT event (2016-07-13 23:09:10 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> User visible:
> 
> - Finish merging initial SDT (Statically Defined Traces) support, see
>   cset comments for details about how it all works (Masami Hiramatsu)
> 
> - Support attaching eBPF programs to tracepoints (Wang Nan)
> 
> Infrastructure:
> 
> - Fix up BITS_PER_LONG setting (Arnaldo Carvalho de Melo)
> 
> - Add fallback from ELF_C_READ_MMAP to ELF_C_READ in objtool, fixing
>   the build in libelf implementations lacking that elf_begin() cmd,
>   such as Alpine Linux's (Arnaldo Carvalho de Melo)
> 
> - Avoid checking code drift on busybox's diff in objtool (Arnaldo Carvalho de Melo)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (3):
>       tools: Fix up BITS_PER_LONG setting
>       objtool: Add fallback from ELF_C_READ_MMAP to ELF_C_READ
>       objtool: Avoid checking code drift on busybox's diff
> 
> Masami Hiramatsu (11):
>       perf probe: Fix to show correct error message for $vars and $params
>       perf probe: Accept %sdt and %cached event name
>       perf probe: Make --list show only available cached events
>       perf probe-cache: Add for_each_probe_cache_entry() wrapper
>       perf probe: Allow wildcard for cached events
>       perf probe: Search SDT/cached event from all probe caches
>       perf list: Show SDT and pre-cached events
>       perf probe: Support @BUILDID or @FILE suffix for SDT events
>       perf probe: Support a special SDT probe format
>       perf build: Add sdt feature detection
>       perf test: Add a test case for SDT event
> 
> Wang Nan (5):
>       tools lib bpf: New API to adjust type of a BPF program
>       tools lib bpf: Report error when kernel doesn't support program type
>       perf event parser: Add const qualifier to evt_name and sys_name
>       perf bpf: Rename bpf__foreach_tev() to bpf__foreach_event()
>       perf bpf: Support BPF program attach to tracepoints
> 
>  tools/build/Makefile.feature            |   3 +-
>  tools/build/feature/Makefile            |   6 +-
>  tools/build/feature/test-all.c          |   5 +
>  tools/build/feature/test-sdt.c          |   7 +
>  tools/include/asm-generic/bitsperlong.h |  24 ++-
>  tools/lib/bpf/libbpf.c                  |  80 +++++++--
>  tools/lib/bpf/libbpf.h                  |  10 ++
>  tools/objtool/Makefile                  |   5 +-
>  tools/objtool/elf.c                     |   7 +
>  tools/perf/Documentation/perf-probe.txt |  11 +-
>  tools/perf/Makefile.perf                |   3 +
>  tools/perf/builtin-list.c               |   6 +-
>  tools/perf/builtin-probe.c              |   2 +-
>  tools/perf/config/Makefile              |  10 ++
>  tools/perf/tests/Build                  |   1 +
>  tools/perf/tests/builtin-test.c         |   4 +
>  tools/perf/tests/make                   |   3 +-
>  tools/perf/tests/sdt.c                  | 115 ++++++++++++
>  tools/perf/tests/tests.h                |   1 +
>  tools/perf/util/bpf-loader.c            |  73 +++++++-
>  tools/perf/util/bpf-loader.h            |  12 +-
>  tools/perf/util/build-id.c              |  76 +++++++-
>  tools/perf/util/build-id.h              |   3 +-
>  tools/perf/util/parse-events.c          | 110 ++++++++++--
>  tools/perf/util/parse-events.h          |   4 +-
>  tools/perf/util/probe-event.c           | 309 +++++++++++++++++++++++++++-----
>  tools/perf/util/probe-event.h           |   1 +
>  tools/perf/util/probe-file.c            |  57 ++++--
>  tools/perf/util/probe-file.h            |  14 ++
>  29 files changed, 850 insertions(+), 112 deletions(-)
>  create mode 100644 tools/build/feature/test-sdt.c
>  create mode 100644 tools/perf/tests/sdt.c

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

I've added building objtool to most of the containers in my build test setup:

[root@jouet ~]# perf stat dm
alpine:3.4: Ok
centos:5: Ok
centos:6: Ok
centos:7: Ok
debian:7: Ok
debian:8: Ok
debian:experimental: Ok
fedora:21: Ok
fedora:22: Ok
fedora:23: Ok
fedora:24: Ok
fedora:rawhide: Ok
mageia:5: Ok
opensuse:13.2: Ok
opensuse:42.1: Ok
ubuntu:12.04.5: Ok
ubuntu:14.04.4: Ok
ubuntu:15.10: Ok
ubuntu:16.04: Ok

 Performance counter stats for 'dm':

       2601.121782      task-clock (msec)         #    0.002 CPUs utilized          
            86,368      context-switches          #    0.033 M/sec                  
             5,740      cpu-migrations            #    0.002 M/sec                  
            53,962      page-faults               #    0.021 M/sec                  
     7,217,605,183      cycles                    #    2.775 GHz                    
     6,534,540,119      instructions              #    0.91  insn per cycle         
     1,408,715,184      branches                  #  541.580 M/sec                  
        18,523,459      branch-misses             #    1.31% of all branches        

    1541.746171526 seconds time elapsed

[root@jouet ~]# 

- Arnaldo

The following changes since commit 7b39cafb7aa68ef8e32a9f51fbe737d96084ca74:

  tools: Work around BITS_PER_LONG related build failure in objtool (2016-07-13 09:37:43 +0200)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-20160713

for you to fetch changes up to 8e5dc848356ecf6ea8d27d641c4d7ad8d42fe92b:

  perf test: Add a test case for SDT event (2016-07-13 23:09:10 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

User visible:

- Finish merging initial SDT (Statically Defined Traces) support, see
  cset comments for details about how it all works (Masami Hiramatsu)

- Support attaching eBPF programs to tracepoints (Wang Nan)

Infrastructure:

- Fix up BITS_PER_LONG setting (Arnaldo Carvalho de Melo)

- Add fallback from ELF_C_READ_MMAP to ELF_C_READ in objtool, fixing
  the build in libelf implementations lacking that elf_begin() cmd,
  such as Alpine Linux's (Arnaldo Carvalho de Melo)

- Avoid checking code drift on busybox's diff in objtool (Arnaldo Carvalho de Melo)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Arnaldo Carvalho de Melo (3):
      tools: Fix up BITS_PER_LONG setting
      objtool: Add fallback from ELF_C_READ_MMAP to ELF_C_READ
      objtool: Avoid checking code drift on busybox's diff

Masami Hiramatsu (11):
      perf probe: Fix to show correct error message for $vars and $params
      perf probe: Accept %sdt and %cached event name
      perf probe: Make --list show only available cached events
      perf probe-cache: Add for_each_probe_cache_entry() wrapper
      perf probe: Allow wildcard for cached events
      perf probe: Search SDT/cached event from all probe caches
      perf list: Show SDT and pre-cached events
      perf probe: Support @BUILDID or @FILE suffix for SDT events
      perf probe: Support a special SDT probe format
      perf build: Add sdt feature detection
      perf test: Add a test case for SDT event

Wang Nan (5):
      tools lib bpf: New API to adjust type of a BPF program
      tools lib bpf: Report error when kernel doesn't support program type
      perf event parser: Add const qualifier to evt_name and sys_name
      perf bpf: Rename bpf__foreach_tev() to bpf__foreach_event()
      perf bpf: Support BPF program attach to tracepoints

 tools/build/Makefile.feature            |   3 +-
 tools/build/feature/Makefile            |   6 +-
 tools/build/feature/test-all.c          |   5 +
 tools/build/feature/test-sdt.c          |   7 +
 tools/include/asm-generic/bitsperlong.h |  24 ++-
 tools/lib/bpf/libbpf.c                  |  80 +++++++--
 tools/lib/bpf/libbpf.h                  |  10 ++
 tools/objtool/Makefile                  |   5 +-
 tools/objtool/elf.c                     |   7 +
 tools/perf/Documentation/perf-probe.txt |  11 +-
 tools/perf/Makefile.perf                |   3 +
 tools/perf/builtin-list.c               |   6 +-
 tools/perf/builtin-probe.c              |   2 +-
 tools/perf/config/Makefile              |  10 ++
 tools/perf/tests/Build                  |   1 +
 tools/perf/tests/builtin-test.c         |   4 +
 tools/perf/tests/make                   |   3 +-
 tools/perf/tests/sdt.c                  | 115 ++++++++++++
 tools/perf/tests/tests.h                |   1 +
 tools/perf/util/bpf-loader.c            |  73 +++++++-
 tools/perf/util/bpf-loader.h            |  12 +-
 tools/perf/util/build-id.c              |  76 +++++++-
 tools/perf/util/build-id.h              |   3 +-
 tools/perf/util/parse-events.c          | 110 ++++++++++--
 tools/perf/util/parse-events.h          |   4 +-
 tools/perf/util/probe-event.c           | 309 +++++++++++++++++++++++++++-----
 tools/perf/util/probe-event.h           |   1 +
 tools/perf/util/probe-file.c            |  57 ++++--
 tools/perf/util/probe-file.h            |  14 ++
 29 files changed, 850 insertions(+), 112 deletions(-)
 create mode 100644 tools/build/feature/test-sdt.c
 create mode 100644 tools/perf/tests/sdt.c

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Em Thu, Jun 16, 2016 at 08:29:47AM +0200, Jiri Olsa escreveu:
> On Wed, Jun 15, 2016 at 03:13:09PM -0300, Arnaldo Carvalho de Melo wrote:
> 
> SNIP
> 
> > ----------------------------------------------------------------
> > He Kuang (1):
> >       perf unwind: Fix compile error for static cross build
> > 
> > Jiri Olsa (10):
> >       perf mem: Add --ldlat option
> >       perf tools: Fix Data Object sort entry width index
> >       perf tui: Separate hierarchy and standard headers output
> >       perf stdio: Separate headers output
> >       perf stdio: Separate hierarchy headers output
> >       perf stdio: Separate standard headers output
> >       perf stdio: Do not pass hists in hist_entry__fprintf
> >       perf stdio: Add use_callchain parameter to hists__fprintf
> >       perf hists: Replace perf_evsel arg perf_hpp_fmt's header callback
> >       perf hists: Replace perf_evsel arg perf_hpp_fmt's width callback
> hi,
> any reason for skipping this one?:
>   perf tools: Rename __hists__add_entry to hists__add_entry

nope, will apply.

- Arnaldo

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@kernel.org> wrote:

> Hi Ingo,
> 
> 	Please consider pulling,
> 
> - Arnaldo
> 
> The following changes since commit 2c95afc1e83d93fac3be6923465e1753c2c53b0a:
> 
>   perf/x86/intel, watchdog: Switch NMI watchdog to ref cycles on x86 (2016-06-14 11:16:59 +0200)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-20160615
> 
> for you to fetch changes up to 2fd457a34525ea3bc609e377b46af759af8a7934:
> 
>   perf probe: Add --cache option to cache the probe definitions (2016-06-15 14:34:42 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> User visible:
> 
> - Add --ldlat option to 'perf mem' to specify load latency for loads
>   event (e.g. cpu/mem-loads/ ) (Jiri Olsa)
> 
> Build fixes:
> 
> - Fix libunwind related compile error for static cross build (He Kuang)
> 
> Infrastructure:
> 
> - UI refactorings to support headers with multiple lines, non-evsel
>   hists browsers, toggle showing callchains, etc (Jiri Olsa)
> 
> - More prep work for caching probe definitions, paving the way
>   for supporting SDT (Statically Defined Traces) userspace probes (Masami Hiramatsu)
> 
> - Handle NULL at perf_config_set__delete() (Taeung Song)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> He Kuang (1):
>       perf unwind: Fix compile error for static cross build
> 
> Jiri Olsa (10):
>       perf mem: Add --ldlat option
>       perf tools: Fix Data Object sort entry width index
>       perf tui: Separate hierarchy and standard headers output
>       perf stdio: Separate headers output
>       perf stdio: Separate hierarchy headers output
>       perf stdio: Separate standard headers output
>       perf stdio: Do not pass hists in hist_entry__fprintf
>       perf stdio: Add use_callchain parameter to hists__fprintf
>       perf hists: Replace perf_evsel arg perf_hpp_fmt's header callback
>       perf hists: Replace perf_evsel arg perf_hpp_fmt's width callback
> 
> Masami Hiramatsu (7):
>       perf tools: Fix rm_rf() to handle non-regular files correctly
>       perf probe: Fix to add NULL check for strndup
>       perf buildid: Rename and export build_id_cache__cachedir()
>       perf probe: Add perf_probe_event__copy()
>       perf probe: Uncomment and export synthesize_perf_probe_point()
>       perf probe: Introduce perf_cache interfaces
>       perf probe: Add --cache option to cache the probe definitions
> 
> Taeung Song (1):
>       perf config: Handle NULL at perf_config_set__delete()
> 
>  tools/perf/Documentation/perf-mem.txt   |   3 +
>  tools/perf/Documentation/perf-probe.txt |   4 +
>  tools/perf/builtin-diff.c               |   7 +-
>  tools/perf/builtin-mem.c                |   1 +
>  tools/perf/builtin-probe.c              |   1 +
>  tools/perf/builtin-report.c             |   3 +-
>  tools/perf/builtin-top.c                |   2 +-
>  tools/perf/config/Makefile              |   3 +
>  tools/perf/ui/browsers/hists.c          |  39 ++--
>  tools/perf/ui/gtk/hists.c               |   2 +-
>  tools/perf/ui/hist.c                    |  11 +-
>  tools/perf/ui/stdio/hist.c              | 133 +++++++------
>  tools/perf/util/build-id.c              |  12 +-
>  tools/perf/util/build-id.h              |   2 +
>  tools/perf/util/config.c                |   3 +
>  tools/perf/util/hist.c                  |   2 +-
>  tools/perf/util/hist.h                  |   7 +-
>  tools/perf/util/mem-events.c            |  17 +-
>  tools/perf/util/mem-events.h            |   1 +
>  tools/perf/util/probe-event.c           | 128 ++++++++++--
>  tools/perf/util/probe-event.h           |   5 +
>  tools/perf/util/probe-file.c            | 331 ++++++++++++++++++++++++++++++++
>  tools/perf/util/probe-file.h            |  20 ++
>  tools/perf/util/sort.c                  |  14 +-
>  tools/perf/util/util.c                  |  13 +-
>  25 files changed, 640 insertions(+), 124 deletions(-)

Pulled, thanks a lot Arnaldo!

	Ingo

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Jiri Olsa]

On Wed, Jun 15, 2016 at 03:13:09PM -0300, Arnaldo Carvalho de Melo wrote:

SNIP

> ----------------------------------------------------------------
> He Kuang (1):
>       perf unwind: Fix compile error for static cross build
> 
> Jiri Olsa (10):
>       perf mem: Add --ldlat option
>       perf tools: Fix Data Object sort entry width index
>       perf tui: Separate hierarchy and standard headers output
>       perf stdio: Separate headers output
>       perf stdio: Separate hierarchy headers output
>       perf stdio: Separate standard headers output
>       perf stdio: Do not pass hists in hist_entry__fprintf
>       perf stdio: Add use_callchain parameter to hists__fprintf
>       perf hists: Replace perf_evsel arg perf_hpp_fmt's header callback
>       perf hists: Replace perf_evsel arg perf_hpp_fmt's width callback
hi,
any reason for skipping this one?:
  perf tools: Rename __hists__add_entry to hists__add_entry

thanks,
jirka

[GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit 2c95afc1e83d93fac3be6923465e1753c2c53b0a:

  perf/x86/intel, watchdog: Switch NMI watchdog to ref cycles on x86 (2016-06-14 11:16:59 +0200)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-20160615

for you to fetch changes up to 2fd457a34525ea3bc609e377b46af759af8a7934:

  perf probe: Add --cache option to cache the probe definitions (2016-06-15 14:34:42 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

User visible:

- Add --ldlat option to 'perf mem' to specify load latency for loads
  event (e.g. cpu/mem-loads/ ) (Jiri Olsa)

Build fixes:

- Fix libunwind related compile error for static cross build (He Kuang)

Infrastructure:

- UI refactorings to support headers with multiple lines, non-evsel
  hists browsers, toggle showing callchains, etc (Jiri Olsa)

- More prep work for caching probe definitions, paving the way
  for supporting SDT (Statically Defined Traces) userspace probes (Masami Hiramatsu)

- Handle NULL at perf_config_set__delete() (Taeung Song)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
He Kuang (1):
      perf unwind: Fix compile error for static cross build

Jiri Olsa (10):
      perf mem: Add --ldlat option
      perf tools: Fix Data Object sort entry width index
      perf tui: Separate hierarchy and standard headers output
      perf stdio: Separate headers output
      perf stdio: Separate hierarchy headers output
      perf stdio: Separate standard headers output
      perf stdio: Do not pass hists in hist_entry__fprintf
      perf stdio: Add use_callchain parameter to hists__fprintf
      perf hists: Replace perf_evsel arg perf_hpp_fmt's header callback
      perf hists: Replace perf_evsel arg perf_hpp_fmt's width callback

Masami Hiramatsu (7):
      perf tools: Fix rm_rf() to handle non-regular files correctly
      perf probe: Fix to add NULL check for strndup
      perf buildid: Rename and export build_id_cache__cachedir()
      perf probe: Add perf_probe_event__copy()
      perf probe: Uncomment and export synthesize_perf_probe_point()
      perf probe: Introduce perf_cache interfaces
      perf probe: Add --cache option to cache the probe definitions

Taeung Song (1):
      perf config: Handle NULL at perf_config_set__delete()

 tools/perf/Documentation/perf-mem.txt   |   3 +
 tools/perf/Documentation/perf-probe.txt |   4 +
 tools/perf/builtin-diff.c               |   7 +-
 tools/perf/builtin-mem.c                |   1 +
 tools/perf/builtin-probe.c              |   1 +
 tools/perf/builtin-report.c             |   3 +-
 tools/perf/builtin-top.c                |   2 +-
 tools/perf/config/Makefile              |   3 +
 tools/perf/ui/browsers/hists.c          |  39 ++--
 tools/perf/ui/gtk/hists.c               |   2 +-
 tools/perf/ui/hist.c                    |  11 +-
 tools/perf/ui/stdio/hist.c              | 133 +++++++------
 tools/perf/util/build-id.c              |  12 +-
 tools/perf/util/build-id.h              |   2 +
 tools/perf/util/config.c                |   3 +
 tools/perf/util/hist.c                  |   2 +-
 tools/perf/util/hist.h                  |   7 +-
 tools/perf/util/mem-events.c            |  17 +-
 tools/perf/util/mem-events.h            |   1 +
 tools/perf/util/probe-event.c           | 128 ++++++++++--
 tools/perf/util/probe-event.h           |   5 +
 tools/perf/util/probe-file.c            | 331 ++++++++++++++++++++++++++++++++
 tools/perf/util/probe-file.h            |  20 ++
 tools/perf/util/sort.c                  |  14 +-
 tools/perf/util/util.c                  |  13 +-
 25 files changed, 640 insertions(+), 124 deletions(-)

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@kernel.org> wrote:

> Em Thu, Apr 07, 2016 at 05:58:21PM -0300, Arnaldo Carvalho de Melo escreveu:
> > Hi Ingo,
> > 
> > 	Please consider pulling, build tested on:
> 
> Ingo, if you haven't pulled this one, please pull instead
> perf-core-for-mingo-20160408, which has the same tag text and contents +
> a Tested-by tag from Milian for the unwind thread one and a bisection
> fix one liner for the syscall_tbl generation from Wang,

Pulled, thanks a lot Arnaldo!

	Ingo

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Em Thu, Apr 07, 2016 at 05:58:21PM -0300, Arnaldo Carvalho de Melo escreveu:
> Hi Ingo,
> 
> 	Please consider pulling, build tested on:

Ingo, if you haven't pulled this one, please pull instead
perf-core-for-mingo-20160408, which has the same tag text and contents +
a Tested-by tag from Milian for the unwind thread one and a bisection
fix one liner for the syscall_tbl generation from Wang,

Thanks,

- Arnaldo
 
>   # perf stat -e cycles dm
>   alldeps-ubuntu-12.04: Ok
>   minimal-debian-experimental-x-mips64: Ok
>   minimal-debian-experimental-x-mips64el: Ok
>   minimal-debian-experimental-x-mipsel: Ok
>   minimal-ubuntu-x-arm: Ok
>   minimal-ubuntu-x-arm64: Ok
>   minimal-ubuntu-x-ppc64: Ok
>   minimal-ubuntu-x-ppc64el: Ok
>   alldeps-debian: Ok
>   alldeps-mageia: Ok
>   alldeps-rhel7: Ok
>   alldeps-centos: Ok
>   alldeps-opensuse: Ok
>   alldeps-ubuntu: Ok
> 
>    Performance counter stats for 'dm':
> 
>      3,095,685,547      cycles                                                      
> 
>      454.805537820 seconds time elapsed
> 
>   #
> 
> 	'perf test' passes on fedora23 x86_64,
> 
> Thanks,
> 
> - Arnaldo
> 
> The following changes since commit dad38ca64a252144b4ccdfe9730a3fe2b7c61957:
> 
>   Merge tag 'perf-core-for-mingo-20160401' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2016-04-06 08:46:23 +0200)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-20160407
> 
> for you to fetch changes up to 98c3d844cd0bc56d33800114e6b6adcd0a5ec381:
> 
>   perf symbols: Adjust symbol for shared objects (2016-04-07 17:17:01 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> User visible:
> 
> - Beautify more syscall arguments in 'perf trace', using the type column in
>   tracepoint /format fields to attach, for instance, a pid_t resolver to the
>   thread COMM, also attach a mode_t beautifier in the same fashion
>   (Arnaldo Carvalho de Melo)
> 
> - Build the syscall table id <-> name resolver using the same .tbl file
>   used in the kernel to generate headers, to avoid the delay in getting
>   new syscalls supported in the audit-libs external dependency, done so
>   far only for x86_64 (Arnaldo Carvalho de Melo)
> 
> - Improve the documentation of event specifications (Andi Kleen)
> 
> - Process update events in 'perf script', fixing up this use case:
> 
>     # perf stat -a -I 1000 -e cycles record | perf script -s script.py
> 
> - Shared object symbol adjustment fixes, fixing symbol resolution in
>   Android (Wang Nan)
> 
> Infrastructure:
> 
> - Add dedicated unwind addr_space member into thread struct, to allow
>   tools to use thread->priv, noticed while working on having callchains
>   in 'perf trace' (Jiri Olsa)
> 
> Build fixes:
> 
> - Fix the build in Ubuntu 12.04 (Arnaldo Carvalho de Melo, Vinson Lee)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Andi Kleen (1):
>       perf list: Document event specifications better
> 
> Arnaldo Carvalho de Melo (11):
>       perf probe: Check if dwarf_getlocations() is available
>       perf script perl: Do error checking on new backtrace routine
>       perf trace: Beautify sched_setscheduler 'policy' argument
>       perf trace: Beautify wait4/waitid 'options' argument
>       perf trace: Infrastructure to show COMM strings for syscalls returning PIDs
>       perf trace: Beautify set_tid_address, getpid, getppid return values
>       perf trace: Beautify pid_t arguments
>       perf trace: Beautify mode_t arguments
>       perf trace: Move syscall table id <-> name routines to separate class
>       perf tools: Allow generating per-arch syscall table arrays
>       perf tools: Build syscall table .c header from kernel's syscall_64.tbl
> 
> Jiri Olsa (4):
>       perf tools: Remove superfluous ARCH Makefile includes
>       perf tools: Introduce trim function
>       perf tools: Add dedicated unwind addr_space member into thread struct
>       perf script: Process event update events
> 
> Vinson Lee (1):
>       perf config: Fix build with older toolchain.
> 
> Wang Nan (2):
>       perf symbols: Record text offset in dso to calculate objdump address
>       perf symbols: Adjust symbol for shared objects
> 
>  tools/build/Makefile.feature                       |   2 +
>  tools/build/feature/Makefile                       |   4 +
>  tools/build/feature/test-all.c                     |   5 +
>  tools/build/feature/test-dwarf_getlocations.c      |  12 +
>  tools/perf/Documentation/perf-list.txt             | 107 +++++-
>  tools/perf/Makefile.perf                           |  13 +-
>  tools/perf/arch/x86/Makefile                       |  23 ++
>  tools/perf/arch/x86/entry/syscalls/syscall_64.tbl  | 374 +++++++++++++++++++++
>  tools/perf/arch/x86/entry/syscalls/syscalltbl.sh   |  39 +++
>  tools/perf/builtin-script.c                        |   1 +
>  tools/perf/builtin-trace.c                         | 156 +++++----
>  tools/perf/config/Makefile                         |  11 +-
>  tools/perf/trace/beauty/mode_t.c                   |  68 ++++
>  tools/perf/trace/beauty/pid.c                      |  18 +
>  tools/perf/trace/beauty/sched_policy.c             |  44 +++
>  tools/perf/trace/beauty/waitid_options.c           |  26 ++
>  tools/perf/ui/browsers/hists.c                     |   3 +-
>  tools/perf/ui/stdio/hist.c                         |   3 +-
>  tools/perf/util/Build                              |   5 +
>  tools/perf/util/config.c                           |   6 +-
>  tools/perf/util/dwarf-aux.c                        |   9 +
>  tools/perf/util/map.c                              |  14 +
>  .../perf/util/scripting-engines/trace-event-perl.c |  30 +-
>  tools/perf/util/symbol-elf.c                       |  13 +-
>  tools/perf/util/syscalltbl.c                       | 134 ++++++++
>  tools/perf/util/syscalltbl.h                       |  20 ++
>  tools/perf/util/thread.h                           |   6 +
>  tools/perf/util/unwind-libunwind.c                 |  25 +-
>  tools/perf/util/util.h                             |   5 +
>  29 files changed, 1060 insertions(+), 116 deletions(-)
>  create mode 100644 tools/build/feature/test-dwarf_getlocations.c
>  create mode 100644 tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
>  create mode 100755 tools/perf/arch/x86/entry/syscalls/syscalltbl.sh
>  create mode 100644 tools/perf/trace/beauty/mode_t.c
>  create mode 100644 tools/perf/trace/beauty/pid.c
>  create mode 100644 tools/perf/trace/beauty/sched_policy.c
>  create mode 100644 tools/perf/trace/beauty/waitid_options.c
>  create mode 100644 tools/perf/util/syscalltbl.c
>  create mode 100644 tools/perf/util/syscalltbl.h

[GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling, build tested on:

  # perf stat -e cycles dm
  alldeps-ubuntu-12.04: Ok
  minimal-debian-experimental-x-mips64: Ok
  minimal-debian-experimental-x-mips64el: Ok
  minimal-debian-experimental-x-mipsel: Ok
  minimal-ubuntu-x-arm: Ok
  minimal-ubuntu-x-arm64: Ok
  minimal-ubuntu-x-ppc64: Ok
  minimal-ubuntu-x-ppc64el: Ok
  alldeps-debian: Ok
  alldeps-mageia: Ok
  alldeps-rhel7: Ok
  alldeps-centos: Ok
  alldeps-opensuse: Ok
  alldeps-ubuntu: Ok

   Performance counter stats for 'dm':

     3,095,685,547      cycles                                                      

     454.805537820 seconds time elapsed

  #

	'perf test' passes on fedora23 x86_64,

Thanks,

- Arnaldo

The following changes since commit dad38ca64a252144b4ccdfe9730a3fe2b7c61957:

  Merge tag 'perf-core-for-mingo-20160401' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2016-04-06 08:46:23 +0200)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-20160407

for you to fetch changes up to 98c3d844cd0bc56d33800114e6b6adcd0a5ec381:

  perf symbols: Adjust symbol for shared objects (2016-04-07 17:17:01 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

User visible:

- Beautify more syscall arguments in 'perf trace', using the type column in
  tracepoint /format fields to attach, for instance, a pid_t resolver to the
  thread COMM, also attach a mode_t beautifier in the same fashion
  (Arnaldo Carvalho de Melo)

- Build the syscall table id <-> name resolver using the same .tbl file
  used in the kernel to generate headers, to avoid the delay in getting
  new syscalls supported in the audit-libs external dependency, done so
  far only for x86_64 (Arnaldo Carvalho de Melo)

- Improve the documentation of event specifications (Andi Kleen)

- Process update events in 'perf script', fixing up this use case:

    # perf stat -a -I 1000 -e cycles record | perf script -s script.py

- Shared object symbol adjustment fixes, fixing symbol resolution in
  Android (Wang Nan)

Infrastructure:

- Add dedicated unwind addr_space member into thread struct, to allow
  tools to use thread->priv, noticed while working on having callchains
  in 'perf trace' (Jiri Olsa)

Build fixes:

- Fix the build in Ubuntu 12.04 (Arnaldo Carvalho de Melo, Vinson Lee)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Andi Kleen (1):
      perf list: Document event specifications better

Arnaldo Carvalho de Melo (11):
      perf probe: Check if dwarf_getlocations() is available
      perf script perl: Do error checking on new backtrace routine
      perf trace: Beautify sched_setscheduler 'policy' argument
      perf trace: Beautify wait4/waitid 'options' argument
      perf trace: Infrastructure to show COMM strings for syscalls returning PIDs
      perf trace: Beautify set_tid_address, getpid, getppid return values
      perf trace: Beautify pid_t arguments
      perf trace: Beautify mode_t arguments
      perf trace: Move syscall table id <-> name routines to separate class
      perf tools: Allow generating per-arch syscall table arrays
      perf tools: Build syscall table .c header from kernel's syscall_64.tbl

Jiri Olsa (4):
      perf tools: Remove superfluous ARCH Makefile includes
      perf tools: Introduce trim function
      perf tools: Add dedicated unwind addr_space member into thread struct
      perf script: Process event update events

Vinson Lee (1):
      perf config: Fix build with older toolchain.

Wang Nan (2):
      perf symbols: Record text offset in dso to calculate objdump address
      perf symbols: Adjust symbol for shared objects

 tools/build/Makefile.feature                       |   2 +
 tools/build/feature/Makefile                       |   4 +
 tools/build/feature/test-all.c                     |   5 +
 tools/build/feature/test-dwarf_getlocations.c      |  12 +
 tools/perf/Documentation/perf-list.txt             | 107 +++++-
 tools/perf/Makefile.perf                           |  13 +-
 tools/perf/arch/x86/Makefile                       |  23 ++
 tools/perf/arch/x86/entry/syscalls/syscall_64.tbl  | 374 +++++++++++++++++++++
 tools/perf/arch/x86/entry/syscalls/syscalltbl.sh   |  39 +++
 tools/perf/builtin-script.c                        |   1 +
 tools/perf/builtin-trace.c                         | 156 +++++----
 tools/perf/config/Makefile                         |  11 +-
 tools/perf/trace/beauty/mode_t.c                   |  68 ++++
 tools/perf/trace/beauty/pid.c                      |  18 +
 tools/perf/trace/beauty/sched_policy.c             |  44 +++
 tools/perf/trace/beauty/waitid_options.c           |  26 ++
 tools/perf/ui/browsers/hists.c                     |   3 +-
 tools/perf/ui/stdio/hist.c                         |   3 +-
 tools/perf/util/Build                              |   5 +
 tools/perf/util/config.c                           |   6 +-
 tools/perf/util/dwarf-aux.c                        |   9 +
 tools/perf/util/map.c                              |  14 +
 .../perf/util/scripting-engines/trace-event-perl.c |  30 +-
 tools/perf/util/symbol-elf.c                       |  13 +-
 tools/perf/util/syscalltbl.c                       | 134 ++++++++
 tools/perf/util/syscalltbl.h                       |  20 ++
 tools/perf/util/thread.h                           |   6 +
 tools/perf/util/unwind-libunwind.c                 |  25 +-
 tools/perf/util/util.h                             |   5 +
 29 files changed, 1060 insertions(+), 116 deletions(-)
 create mode 100644 tools/build/feature/test-dwarf_getlocations.c
 create mode 100644 tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
 create mode 100755 tools/perf/arch/x86/entry/syscalls/syscalltbl.sh
 create mode 100644 tools/perf/trace/beauty/mode_t.c
 create mode 100644 tools/perf/trace/beauty/pid.c
 create mode 100644 tools/perf/trace/beauty/sched_policy.c
 create mode 100644 tools/perf/trace/beauty/waitid_options.c
 create mode 100644 tools/perf/util/syscalltbl.c
 create mode 100644 tools/perf/util/syscalltbl.h

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@kernel.org> wrote:

> Hi Ingo,
> 
> 	Please consider pulling,
> 
> - Arnaldo
> 
> The following changes since commit 3a99e6db539e53cc9c79282e80f8362b0cb96ac8:
> 
>   perf bench mem: Prepare the x86-64 build for upstream memcpy_mcsafe() changes (2016-03-09 10:40:01 +0100)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-20160310
> 
> for you to fetch changes up to 206cab651d07563d766c7f4cb73f858c5df3dec5:
> 
>   perf stat: Add --metric-only support for -A (2016-03-10 16:50:47 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> User visible:
> 
> - Implement 'perf stat --metric-only' (Andi Kleen)
> 
> - Fix perf script python database export crash (Chris Phlipot)
> 
> Infrastructure:
> 
> - perf top/report --hierarchy assorted fixes for problems introduced in this
>   perf/core cycle (Namhyung Kim)
> 
> - Support '~' operation in libtraceevent (Steven Rosted)
> 
> Build fixes:
> 
> - Fix bulding of jitdump on opensuse on ubuntu systems when the DWARF
>   devel files are not installed (Arnaldo Carvalho de Melo)
> 
> - Do not try building jitdump on unsupported arches (Jiri Olsa)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Andi Kleen (3):
>       perf stat: Document CSV format in manpage
>       perf stat: Implement --metric-only mode
>       perf stat: Add --metric-only support for -A
> 
> Arnaldo Carvalho de Melo (1):
>       perf jitdump: DWARF is also needed
> 
> Chris Phlipot (1):
>       perf tools: Fix perf script python database export crash
> 
> Jiri Olsa (3):
>       perf tools: Pass perf_hpp_list all the way through setup_sort_list
>       perf tools: Omit unnecessary cast in perf_pmu__parse_scale
>       perf jitdump: Build only on supported archs
> 
> Namhyung Kim (10):
>       perf tools: Fix hist_entry__filter() for hierarchy
>       perf tools: Add more sort entry check functions
>       perf tools: Fix command line filters in hierarchy mode
>       perf tools: Remove hist_entry->fmt field
>       perf hists browser: Cleanup hist_browser__fprintf_hierarchy_entry()
>       perf tools: Remove nr_sort_keys field
>       perf tools: Recalc total periods using top-level entries in hierarchy
>       perf tools: Add sort__has_comm variable
>       perf hists browser: Allow thread filtering for comm sort key
>       perf hists browser: Check sort keys before hot key actions
> 
> Steven Rostedt (1):
>       tools lib traceevent: Add '~' operation within arg_num_eval()
> 
>  tools/lib/traceevent/event-parse.c     |   6 +
>  tools/perf/Documentation/perf-stat.txt |  27 ++++
>  tools/perf/arch/arm/Makefile           |   1 +
>  tools/perf/arch/arm64/Makefile         |   1 +
>  tools/perf/arch/powerpc/Makefile       |   1 +
>  tools/perf/arch/x86/Makefile           |   1 +
>  tools/perf/builtin-inject.c            |  12 +-
>  tools/perf/builtin-stat.c              | 244 +++++++++++++++++++++++++++++++--
>  tools/perf/config/Makefile             |   7 +
>  tools/perf/ui/browsers/hists.c         |  73 ++++++----
>  tools/perf/ui/hist.c                   |   3 -
>  tools/perf/util/Build                  |   3 +
>  tools/perf/util/evsel.h                |   6 +-
>  tools/perf/util/hist.c                 | 144 +++++++++++++++++--
>  tools/perf/util/hist.h                 |   6 +-
>  tools/perf/util/pmu.c                  |   4 +-
>  tools/perf/util/sort.c                 | 147 +++++++++-----------
>  tools/perf/util/sort.h                 |   2 +-
>  18 files changed, 542 insertions(+), 146 deletions(-)

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit 3a99e6db539e53cc9c79282e80f8362b0cb96ac8:

  perf bench mem: Prepare the x86-64 build for upstream memcpy_mcsafe() changes (2016-03-09 10:40:01 +0100)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-20160310

for you to fetch changes up to 206cab651d07563d766c7f4cb73f858c5df3dec5:

  perf stat: Add --metric-only support for -A (2016-03-10 16:50:47 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

User visible:

- Implement 'perf stat --metric-only' (Andi Kleen)

- Fix perf script python database export crash (Chris Phlipot)

Infrastructure:

- perf top/report --hierarchy assorted fixes for problems introduced in this
  perf/core cycle (Namhyung Kim)

- Support '~' operation in libtraceevent (Steven Rosted)

Build fixes:

- Fix bulding of jitdump on opensuse on ubuntu systems when the DWARF
  devel files are not installed (Arnaldo Carvalho de Melo)

- Do not try building jitdump on unsupported arches (Jiri Olsa)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Andi Kleen (3):
      perf stat: Document CSV format in manpage
      perf stat: Implement --metric-only mode
      perf stat: Add --metric-only support for -A

Arnaldo Carvalho de Melo (1):
      perf jitdump: DWARF is also needed

Chris Phlipot (1):
      perf tools: Fix perf script python database export crash

Jiri Olsa (3):
      perf tools: Pass perf_hpp_list all the way through setup_sort_list
      perf tools: Omit unnecessary cast in perf_pmu__parse_scale
      perf jitdump: Build only on supported archs

Namhyung Kim (10):
      perf tools: Fix hist_entry__filter() for hierarchy
      perf tools: Add more sort entry check functions
      perf tools: Fix command line filters in hierarchy mode
      perf tools: Remove hist_entry->fmt field
      perf hists browser: Cleanup hist_browser__fprintf_hierarchy_entry()
      perf tools: Remove nr_sort_keys field
      perf tools: Recalc total periods using top-level entries in hierarchy
      perf tools: Add sort__has_comm variable
      perf hists browser: Allow thread filtering for comm sort key
      perf hists browser: Check sort keys before hot key actions

Steven Rostedt (1):
      tools lib traceevent: Add '~' operation within arg_num_eval()

 tools/lib/traceevent/event-parse.c     |   6 +
 tools/perf/Documentation/perf-stat.txt |  27 ++++
 tools/perf/arch/arm/Makefile           |   1 +
 tools/perf/arch/arm64/Makefile         |   1 +
 tools/perf/arch/powerpc/Makefile       |   1 +
 tools/perf/arch/x86/Makefile           |   1 +
 tools/perf/builtin-inject.c            |  12 +-
 tools/perf/builtin-stat.c              | 244 +++++++++++++++++++++++++++++++--
 tools/perf/config/Makefile             |   7 +
 tools/perf/ui/browsers/hists.c         |  73 ++++++----
 tools/perf/ui/hist.c                   |   3 -
 tools/perf/util/Build                  |   3 +
 tools/perf/util/evsel.h                |   6 +-
 tools/perf/util/hist.c                 | 144 +++++++++++++++++--
 tools/perf/util/hist.h                 |   6 +-
 tools/perf/util/pmu.c                  |   4 +-
 tools/perf/util/sort.c                 | 147 +++++++++-----------
 tools/perf/util/sort.h                 |   2 +-
 18 files changed, 542 insertions(+), 146 deletions(-)

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@kernel.org> wrote:

> Hi Ingo,
> 
> 	Please consider pulling,
> 
> - Arnaldo
> 
> The following changes since commit 06466212a69c0511c5dcff7363c207ffc8913731:
> 
>   Merge tag 'perf-core-for-mingo-20160224' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2016-02-25 08:20:56 +0100)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-20160226
> 
> for you to fetch changes up to 1d6c9407d45dd622b277ca9f725da3cc9e95b5de:
> 
>   perf trace: Print content of bpf-output event (2016-02-26 19:57:07 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> User visible:
> 
> - Show extra line telling no entries below --percent-limit are
>   at that --hierarchy level (Namhyung Kim)
> 
> - 'perf report/top --hierarchy' assorted alignment fixes (Namhyung Kim)
> 
> - Handle empty print fmts in 'perf script -s' i.e. when running
>   python or perl scripts (Taeung Song)
> 
> - Improve support for bpf-output events in 'perf trace' (Wang Nan)
> 
> - Fix parsing of pmu events with empty list of modifiers, this
>   cures a perf/core-only regression where '-e intel_pt//' got
>   broken (Arnaldo Carvalho de Melo)
> 
> Infrastructure:
> 
> - Improve missing OpenJDK devel files error message in jvmti
>   Makefile (Stephane Eranian)
> 
> - Remove duplicated code and needless script_spec__findnew() (Taeung Song)
> 
> - Bring perf_default_config to the very beginning at main(), removing
>   the need for each subcommand to do this (Wang Nan)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (2):
>       perf tools: Use asprintf() for simple string formatting/allocation
>       perf tools: Fix parsing of pmu events with empty list of modifiers
> 
> Namhyung Kim (10):
>       perf hists: Add more helper functions for the hierarchy mode
>       perf report: Show message for percent limit on stdio
>       perf hists browser: Cleanup hist_browser__update_percent_limit()
>       perf hists browser: Show message for percent limit
>       perf report: Show message for percent limit on gtk
>       perf hists: Fix comparing of dynamic entries
>       perf report: Fix indentation of dynamic entries in hierarchy
>       perf report: Left align dynamic entries in hierarchy
>       perf hists: Fix dynamic entry display in hierarchy
>       perf report: Update column width of dynamic entries
> 
> Stephane Eranian (1):
>       perf jvmti: improve error message in Makefile
> 
> Taeung Song (2):
>       perf script: Exception handling when the print fmt is empty
>       perf script: Remove duplicated code and needless script_spec__findnew()
> 
> Wang Nan (4):
>       perf config: Bring perf_default_config to the very beginning at main()
>       perf tools: Only set filter for tracepoints events
>       perf trace: Call bpf__apply_obj_config in 'perf trace'
>       perf trace: Print content of bpf-output event
> 
>  tools/perf/builtin-diff.c                          |   2 -
>  tools/perf/builtin-help.c                          |   2 +-
>  tools/perf/builtin-kmem.c                          |   4 +-
>  tools/perf/builtin-report.c                        |   2 +-
>  tools/perf/builtin-script.c                        |  21 +---
>  tools/perf/builtin-top.c                           |   4 +-
>  tools/perf/builtin-trace.c                         |  46 +++++++-
>  tools/perf/jvmti/Makefile                          |  17 ++-
>  tools/perf/perf.c                                  |  16 ++-
>  tools/perf/tests/llvm.c                            |   8 --
>  tools/perf/ui/browsers/hists.c                     | 128 +++++++++++++++++++--
>  tools/perf/ui/gtk/hists.c                          |  11 ++
>  tools/perf/ui/hist.c                               |  22 ++++
>  tools/perf/ui/stdio/hist.c                         |  49 ++++++--
>  tools/perf/util/color.c                            |   5 +-
>  tools/perf/util/data-convert-bt.c                  |   2 +-
>  tools/perf/util/evlist.c                           |   3 +
>  tools/perf/util/help-unknown-cmd.c                 |   5 +-
>  tools/perf/util/hist.c                             |  48 +++++++-
>  tools/perf/util/hist.h                             |   4 +
>  tools/perf/util/parse-events.y                     |   6 +-
>  .../perf/util/scripting-engines/trace-event-perl.c |   3 +
>  .../util/scripting-engines/trace-event-python.c    |   3 +
>  tools/perf/util/sort.c                             |  30 ++++-
>  tools/perf/util/sort.h                             |   1 +
>  25 files changed, 363 insertions(+), 79 deletions(-)

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit 06466212a69c0511c5dcff7363c207ffc8913731:

  Merge tag 'perf-core-for-mingo-20160224' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2016-02-25 08:20:56 +0100)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-20160226

for you to fetch changes up to 1d6c9407d45dd622b277ca9f725da3cc9e95b5de:

  perf trace: Print content of bpf-output event (2016-02-26 19:57:07 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

User visible:

- Show extra line telling no entries below --percent-limit are
  at that --hierarchy level (Namhyung Kim)

- 'perf report/top --hierarchy' assorted alignment fixes (Namhyung Kim)

- Handle empty print fmts in 'perf script -s' i.e. when running
  python or perl scripts (Taeung Song)

- Improve support for bpf-output events in 'perf trace' (Wang Nan)

- Fix parsing of pmu events with empty list of modifiers, this
  cures a perf/core-only regression where '-e intel_pt//' got
  broken (Arnaldo Carvalho de Melo)

Infrastructure:

- Improve missing OpenJDK devel files error message in jvmti
  Makefile (Stephane Eranian)

- Remove duplicated code and needless script_spec__findnew() (Taeung Song)

- Bring perf_default_config to the very beginning at main(), removing
  the need for each subcommand to do this (Wang Nan)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Arnaldo Carvalho de Melo (2):
      perf tools: Use asprintf() for simple string formatting/allocation
      perf tools: Fix parsing of pmu events with empty list of modifiers

Namhyung Kim (10):
      perf hists: Add more helper functions for the hierarchy mode
      perf report: Show message for percent limit on stdio
      perf hists browser: Cleanup hist_browser__update_percent_limit()
      perf hists browser: Show message for percent limit
      perf report: Show message for percent limit on gtk
      perf hists: Fix comparing of dynamic entries
      perf report: Fix indentation of dynamic entries in hierarchy
      perf report: Left align dynamic entries in hierarchy
      perf hists: Fix dynamic entry display in hierarchy
      perf report: Update column width of dynamic entries

Stephane Eranian (1):
      perf jvmti: improve error message in Makefile

Taeung Song (2):
      perf script: Exception handling when the print fmt is empty
      perf script: Remove duplicated code and needless script_spec__findnew()

Wang Nan (4):
      perf config: Bring perf_default_config to the very beginning at main()
      perf tools: Only set filter for tracepoints events
      perf trace: Call bpf__apply_obj_config in 'perf trace'
      perf trace: Print content of bpf-output event

 tools/perf/builtin-diff.c                          |   2 -
 tools/perf/builtin-help.c                          |   2 +-
 tools/perf/builtin-kmem.c                          |   4 +-
 tools/perf/builtin-report.c                        |   2 +-
 tools/perf/builtin-script.c                        |  21 +---
 tools/perf/builtin-top.c                           |   4 +-
 tools/perf/builtin-trace.c                         |  46 +++++++-
 tools/perf/jvmti/Makefile                          |  17 ++-
 tools/perf/perf.c                                  |  16 ++-
 tools/perf/tests/llvm.c                            |   8 --
 tools/perf/ui/browsers/hists.c                     | 128 +++++++++++++++++++--
 tools/perf/ui/gtk/hists.c                          |  11 ++
 tools/perf/ui/hist.c                               |  22 ++++
 tools/perf/ui/stdio/hist.c                         |  49 ++++++--
 tools/perf/util/color.c                            |   5 +-
 tools/perf/util/data-convert-bt.c                  |   2 +-
 tools/perf/util/evlist.c                           |   3 +
 tools/perf/util/help-unknown-cmd.c                 |   5 +-
 tools/perf/util/hist.c                             |  48 +++++++-
 tools/perf/util/hist.h                             |   4 +
 tools/perf/util/parse-events.y                     |   6 +-
 .../perf/util/scripting-engines/trace-event-perl.c |   3 +
 .../util/scripting-engines/trace-event-python.c    |   3 +
 tools/perf/util/sort.c                             |  30 ++++-
 tools/perf/util/sort.h                             |   1 +
 25 files changed, 363 insertions(+), 79 deletions(-)

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@kernel.org> wrote:

> Hi Ingo,
> 
> 	Please consider pulling,
> 
> - Arnaldo
> 
> The following changes since commit d3aaf09f889b31f3b424bf9603b163ec1204c361:
> 
>   Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2016-02-04 08:58:01 +0100)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo
> 
> for you to fetch changes up to 598b7c6919c7bbcc1243009721a01bc12275ff3e:
> 
>   perf jit: add source line info support (2016-02-05 12:33:09 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> User visible fixes:
> 
> - Handle spaces in file names obtained from /proc/pid/maps (Marcin Ślusarz)
> 
> New features:
> 
> - Improved support for java, using the JVMTI agent library to do jitdumps
>   that then will be inserted in synthesized PERF_RECORD_MMAP2 events via
>   'perf inject' pointed to synthesized ELF files stored in ~/.debug and
>   keyed with build-ids, to allow symbol resolution and even annotation with
>   source line info, see the changeset comments to see how to use it (Stephane Eranian)
> 
> Documentation:
> 
> - Document mmore variables in the 'perf config' man page (Taeung Song)
> 
> Infrastructure:
> 
> - Improve a bit the 'make -C tools/perf build-test' output (Arnaldo Carvalho de Melo)
> 
> - Do 'build-test' in parallell, using 'make -j' (Arnaldo Carvalho de Melo)
> 
> - Fix handling of 'clean' in multi-target make invokations for parallell builds (Jiri Olsa)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (4):
>       perf build tests: Elide "-f Makefile" from make invokation
>       perf build tests: Move the feature related vars to the front of the make cmdline
>       perf build tests: Do parallell builds with 'build-test'
>       perf inject: Make sure mmap records are ordered when injecting build_ids
> 
> Jiri Olsa (1):
>       perf tools: Fix parallel build including 'clean' target
> 
> Marcin Ślusarz (1):
>       perf tools: handle spaces in file names obtained from /proc/pid/maps
> 
> Stephane Eranian (5):
>       perf symbols: add Java demangling support
>       perf build: Add libcrypto feature detection
>       perf inject: Add jitdump mmap injection support
>       perf tools: add JVMTI agent library
>       perf jit: add source line info support
> 
> Taeung Song (8):
>       perf config: Document 'ui.show-headers' variable in man page
>       perf config: Document variables for 'call-graph' section in man page
>       perf config: Document variables for 'report' section in man page
>       perf config: Document 'top.children' variable in man page
>       perf config: Document 'man.viewer' variable in man page
>       perf config: Document 'pager.<subcommand>' variables in man page
>       perf config: Document 'kmem.default' variable in man page
>       perf config: Document 'record.build-id' variable in man page
> 
>  tools/build/Makefile.feature             |   2 +
>  tools/build/feature/Makefile             |   4 +
>  tools/build/feature/test-all.c           |   5 +
>  tools/build/feature/test-libcrypto.c     |  17 +
>  tools/perf/Documentation/perf-config.txt | 143 +++++++
>  tools/perf/Documentation/perf-inject.txt |   7 +
>  tools/perf/Makefile                      |  16 +-
>  tools/perf/Makefile.perf                 |   3 +
>  tools/perf/builtin-inject.c              | 107 ++++-
>  tools/perf/config/Makefile               |  11 +
>  tools/perf/jvmti/Makefile                |  76 ++++
>  tools/perf/jvmti/jvmti_agent.c           | 465 +++++++++++++++++++++
>  tools/perf/jvmti/jvmti_agent.h           |  36 ++
>  tools/perf/jvmti/libjvmti.c              | 304 ++++++++++++++
>  tools/perf/tests/make                    |  11 +-
>  tools/perf/util/Build                    |   6 +
>  tools/perf/util/demangle-java.c          | 199 +++++++++
>  tools/perf/util/demangle-java.h          |  10 +
>  tools/perf/util/event.c                  |   2 +-
>  tools/perf/util/genelf.c                 | 449 +++++++++++++++++++++
>  tools/perf/util/genelf.h                 |  67 +++
>  tools/perf/util/genelf_debug.c           | 610 ++++++++++++++++++++++++++++
>  tools/perf/util/jit.h                    |  15 +
>  tools/perf/util/jitdump.c                | 672 +++++++++++++++++++++++++++++++
>  tools/perf/util/jitdump.h                | 124 ++++++
>  tools/perf/util/symbol-elf.c             |   3 +
>  26 files changed, 3357 insertions(+), 7 deletions(-)
>  create mode 100644 tools/build/feature/test-libcrypto.c
>  create mode 100644 tools/perf/jvmti/Makefile
>  create mode 100644 tools/perf/jvmti/jvmti_agent.c
>  create mode 100644 tools/perf/jvmti/jvmti_agent.h
>  create mode 100644 tools/perf/jvmti/libjvmti.c
>  create mode 100644 tools/perf/util/demangle-java.c
>  create mode 100644 tools/perf/util/demangle-java.h
>  create mode 100644 tools/perf/util/genelf.c
>  create mode 100644 tools/perf/util/genelf.h
>  create mode 100644 tools/perf/util/genelf_debug.c
>  create mode 100644 tools/perf/util/jit.h
>  create mode 100644 tools/perf/util/jitdump.c
>  create mode 100644 tools/perf/util/jitdump.h

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit d3aaf09f889b31f3b424bf9603b163ec1204c361:

  Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2016-02-04 08:58:01 +0100)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo

for you to fetch changes up to 598b7c6919c7bbcc1243009721a01bc12275ff3e:

  perf jit: add source line info support (2016-02-05 12:33:09 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

User visible fixes:

- Handle spaces in file names obtained from /proc/pid/maps (Marcin Ślusarz)

New features:

- Improved support for java, using the JVMTI agent library to do jitdumps
  that then will be inserted in synthesized PERF_RECORD_MMAP2 events via
  'perf inject' pointed to synthesized ELF files stored in ~/.debug and
  keyed with build-ids, to allow symbol resolution and even annotation with
  source line info, see the changeset comments to see how to use it (Stephane Eranian)

Documentation:

- Document mmore variables in the 'perf config' man page (Taeung Song)

Infrastructure:

- Improve a bit the 'make -C tools/perf build-test' output (Arnaldo Carvalho de Melo)

- Do 'build-test' in parallell, using 'make -j' (Arnaldo Carvalho de Melo)

- Fix handling of 'clean' in multi-target make invokations for parallell builds (Jiri Olsa)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Arnaldo Carvalho de Melo (4):
      perf build tests: Elide "-f Makefile" from make invokation
      perf build tests: Move the feature related vars to the front of the make cmdline
      perf build tests: Do parallell builds with 'build-test'
      perf inject: Make sure mmap records are ordered when injecting build_ids

Jiri Olsa (1):
      perf tools: Fix parallel build including 'clean' target

Marcin Ślusarz (1):
      perf tools: handle spaces in file names obtained from /proc/pid/maps

Stephane Eranian (5):
      perf symbols: add Java demangling support
      perf build: Add libcrypto feature detection
      perf inject: Add jitdump mmap injection support
      perf tools: add JVMTI agent library
      perf jit: add source line info support

Taeung Song (8):
      perf config: Document 'ui.show-headers' variable in man page
      perf config: Document variables for 'call-graph' section in man page
      perf config: Document variables for 'report' section in man page
      perf config: Document 'top.children' variable in man page
      perf config: Document 'man.viewer' variable in man page
      perf config: Document 'pager.<subcommand>' variables in man page
      perf config: Document 'kmem.default' variable in man page
      perf config: Document 'record.build-id' variable in man page

 tools/build/Makefile.feature             |   2 +
 tools/build/feature/Makefile             |   4 +
 tools/build/feature/test-all.c           |   5 +
 tools/build/feature/test-libcrypto.c     |  17 +
 tools/perf/Documentation/perf-config.txt | 143 +++++++
 tools/perf/Documentation/perf-inject.txt |   7 +
 tools/perf/Makefile                      |  16 +-
 tools/perf/Makefile.perf                 |   3 +
 tools/perf/builtin-inject.c              | 107 ++++-
 tools/perf/config/Makefile               |  11 +
 tools/perf/jvmti/Makefile                |  76 ++++
 tools/perf/jvmti/jvmti_agent.c           | 465 +++++++++++++++++++++
 tools/perf/jvmti/jvmti_agent.h           |  36 ++
 tools/perf/jvmti/libjvmti.c              | 304 ++++++++++++++
 tools/perf/tests/make                    |  11 +-
 tools/perf/util/Build                    |   6 +
 tools/perf/util/demangle-java.c          | 199 +++++++++
 tools/perf/util/demangle-java.h          |  10 +
 tools/perf/util/event.c                  |   2 +-
 tools/perf/util/genelf.c                 | 449 +++++++++++++++++++++
 tools/perf/util/genelf.h                 |  67 +++
 tools/perf/util/genelf_debug.c           | 610 ++++++++++++++++++++++++++++
 tools/perf/util/jit.h                    |  15 +
 tools/perf/util/jitdump.c                | 672 +++++++++++++++++++++++++++++++
 tools/perf/util/jitdump.h                | 124 ++++++
 tools/perf/util/symbol-elf.c             |   3 +
 26 files changed, 3357 insertions(+), 7 deletions(-)
 create mode 100644 tools/build/feature/test-libcrypto.c
 create mode 100644 tools/perf/jvmti/Makefile
 create mode 100644 tools/perf/jvmti/jvmti_agent.c
 create mode 100644 tools/perf/jvmti/jvmti_agent.h
 create mode 100644 tools/perf/jvmti/libjvmti.c
 create mode 100644 tools/perf/util/demangle-java.c
 create mode 100644 tools/perf/util/demangle-java.h
 create mode 100644 tools/perf/util/genelf.c
 create mode 100644 tools/perf/util/genelf.h
 create mode 100644 tools/perf/util/genelf_debug.c
 create mode 100644 tools/perf/util/jit.h
 create mode 100644 tools/perf/util/jitdump.c
 create mode 100644 tools/perf/util/jitdump.h

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@kernel.org> wrote:

> Hi Ingo,
> 
>         Please consider pulling, it is the pull req from yesterday, minus a patch
> that introduced a problem, plus a fex fixes.
> 
>         I am investigating a problem I noticed for another patch that is upstream
> and after that will get back to the removed patch from yesterday's batch,
> 
> - Arnaldo
> 
> The following changes since commit 6645f3187f5beb64f7a40515cfa18f3889264ece:
> 
>   Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2015-04-03 07:00:02 +0200)
> 
> are available in the git repository at:
> 
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo
> 
> for you to fetch changes up to a1e12da4796a4ddd0e911687a290eb396d1c64bf:
> 
>   perf tools: Add 'I' event modifier for exclude_idle bit (2015-04-08 11:00:16 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> - Teach about perf_event_attr.clockid to 'perf record' (Peter Zijlstra)
> 
> - perf sched replay improvements for high CPU core count machines (Yunlong Song)
> 
> - Consider PERF_RECORD_ events with cpumode == 0 in 'perf top', removing one
>   cause of long term memory usage buildup, i.e. not processing PERF_RECORD_EXIT
>   events (Arnaldo Carvalho de Melo)
> 
> - Add 'I' event modifier for perf_event_attr.exclude_idle bit (Jiri Olsa)
> 
> - Respect -i option 'in perf kmem' (Jiri Olsa)
> 
> Infrastructure:
> 
> - Honor operator priority in libtraceevent (Namhyung Kim)
> 
> - Merge all perf_event_attr print functions (Peter Zijlstra)
> 
> - Check kmaps access to make code more robust (Wang Nan)
> 
> - Fix inverted logic in perf_mmap__empty() (He Kuang)
> 
> - Fix ARM 32 'perf probe' building error (Wang Nan)
> 
> - Fix perf_event_attr tests (Jiri Olsa)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> He Kuang (1):
>       perf evlist: Fix inverted logic in perf_mmap__empty
> 
> Jiri Olsa (3):
>       perf kmem: Respect -i option
>       perf tests: Fix attr tests
>       perf tools: Add 'I' event modifier for exclude_idle bit
> 
> Namhyung Kim (1):
>       tools lib traceevent: Honor operator priority
> 
> Peter Zijlstra (2):
>       perf record: Add clockid parameter
>       perf tools: Merge all perf_event_attr print functions
> 
> Wang Nan (3):
>       perf kmaps: Check kmaps to make code more robust
>       perf probe: Fix ARM 32 building error
>       perf report: Don't call map__kmap if map is NULL.
> 
> Yunlong Song (9):
>       perf sched replay: Use struct task_desc instead of struct task_task for correct meaning
>       perf sched replay: Increase the MAX_PID value to fix assertion failure problem
>       perf sched replay: Alloc the memory of pid_to_task dynamically to adapt to the unexpected change of pid_max
>       perf sched replay: Realloc the memory of pid_to_task stepwise to adapt to the different pid_max configurations
>       perf sched replay: Fix the segmentation fault problem caused by pr_err in threads
>       perf sched replay: Handle the dead halt of sem_wait when create_tasks() fails for any task
>       perf sched replay: Fix the EMFILE error caused by the limitation of the maximum open files
>       perf sched replay: Support using -f to override perf.data file ownership
>       perf sched replay: Use replay_repeat to calculate the runavg of cpu usage instead of the default value 10
> 
>  tools/lib/traceevent/event-parse.c       |  17 +-
>  tools/perf/Documentation/perf-list.txt   |   1 +
>  tools/perf/Documentation/perf-record.txt |   7 +
>  tools/perf/builtin-kmem.c                |   3 +-
>  tools/perf/builtin-record.c              |  87 +++++++++
>  tools/perf/builtin-report.c              |   2 +-
>  tools/perf/builtin-sched.c               |  67 +++++--
>  tools/perf/perf.h                        |   2 +
>  tools/perf/tests/attr/base-record        |   2 +-
>  tools/perf/tests/attr/base-stat          |   2 +-
>  tools/perf/tests/parse-events.c          |  40 ++++
>  tools/perf/util/evlist.c                 |   2 +-
>  tools/perf/util/evsel.c                  | 325 ++++++++++++++++---------------
>  tools/perf/util/evsel.h                  |   6 +
>  tools/perf/util/header.c                 |  28 +--
>  tools/perf/util/machine.c                |   5 +-
>  tools/perf/util/map.c                    |  20 ++
>  tools/perf/util/map.h                    |   6 +-
>  tools/perf/util/parse-events.c           |   8 +-
>  tools/perf/util/parse-events.l           |   2 +-
>  tools/perf/util/probe-event.c            |   5 +-
>  tools/perf/util/session.c                |   3 +
>  tools/perf/util/symbol-elf.c             |  16 +-
>  tools/perf/util/symbol.c                 |  34 +++-
>  24 files changed, 477 insertions(+), 213 deletions(-)

Pulled, thanks a lot Arnaldo!

	Ingo

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@kernel.org> wrote:

> Hi Ingo,
> 
>         Please consider pulling, it is the pull req from yesterday, minus a patch
> that introduced a problem, plus a fex fixes.
> 
>         I am investigating a problem I noticed for another patch that is upstream
> and after that will get back to the removed patch from yesterday's batch,
> 
> - Arnaldo
> 
> The following changes since commit 6645f3187f5beb64f7a40515cfa18f3889264ece:
> 
>   Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2015-04-03 07:00:02 +0200)
> 
> are available in the git repository at:
> 
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo
> 
> for you to fetch changes up to a1e12da4796a4ddd0e911687a290eb396d1c64bf:
> 
>   perf tools: Add 'I' event modifier for exclude_idle bit (2015-04-08 11:00:16 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> - Teach about perf_event_attr.clockid to 'perf record' (Peter Zijlstra)
> 
> - perf sched replay improvements for high CPU core count machines (Yunlong Song)
> 
> - Consider PERF_RECORD_ events with cpumode == 0 in 'perf top', removing one
>   cause of long term memory usage buildup, i.e. not processing PERF_RECORD_EXIT
>   events (Arnaldo Carvalho de Melo)
> 
> - Add 'I' event modifier for perf_event_attr.exclude_idle bit (Jiri Olsa)
> 
> - Respect -i option 'in perf kmem' (Jiri Olsa)
> 
> Infrastructure:
> 
> - Honor operator priority in libtraceevent (Namhyung Kim)
> 
> - Merge all perf_event_attr print functions (Peter Zijlstra)
> 
> - Check kmaps access to make code more robust (Wang Nan)
> 
> - Fix inverted logic in perf_mmap__empty() (He Kuang)
> 
> - Fix ARM 32 'perf probe' building error (Wang Nan)
> 
> - Fix perf_event_attr tests (Jiri Olsa)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> He Kuang (1):
>       perf evlist: Fix inverted logic in perf_mmap__empty
> 
> Jiri Olsa (3):
>       perf kmem: Respect -i option
>       perf tests: Fix attr tests
>       perf tools: Add 'I' event modifier for exclude_idle bit
> 
> Namhyung Kim (1):
>       tools lib traceevent: Honor operator priority
> 
> Peter Zijlstra (2):
>       perf record: Add clockid parameter
>       perf tools: Merge all perf_event_attr print functions
> 
> Wang Nan (3):
>       perf kmaps: Check kmaps to make code more robust
>       perf probe: Fix ARM 32 building error
>       perf report: Don't call map__kmap if map is NULL.
> 
> Yunlong Song (9):
>       perf sched replay: Use struct task_desc instead of struct task_task for correct meaning
>       perf sched replay: Increase the MAX_PID value to fix assertion failure problem
>       perf sched replay: Alloc the memory of pid_to_task dynamically to adapt to the unexpected change of pid_max
>       perf sched replay: Realloc the memory of pid_to_task stepwise to adapt to the different pid_max configurations
>       perf sched replay: Fix the segmentation fault problem caused by pr_err in threads
>       perf sched replay: Handle the dead halt of sem_wait when create_tasks() fails for any task
>       perf sched replay: Fix the EMFILE error caused by the limitation of the maximum open files
>       perf sched replay: Support using -f to override perf.data file ownership
>       perf sched replay: Use replay_repeat to calculate the runavg of cpu usage instead of the default value 10
> 
>  tools/lib/traceevent/event-parse.c       |  17 +-
>  tools/perf/Documentation/perf-list.txt   |   1 +
>  tools/perf/Documentation/perf-record.txt |   7 +
>  tools/perf/builtin-kmem.c                |   3 +-
>  tools/perf/builtin-record.c              |  87 +++++++++
>  tools/perf/builtin-report.c              |   2 +-
>  tools/perf/builtin-sched.c               |  67 +++++--
>  tools/perf/perf.h                        |   2 +
>  tools/perf/tests/attr/base-record        |   2 +-
>  tools/perf/tests/attr/base-stat          |   2 +-
>  tools/perf/tests/parse-events.c          |  40 ++++
>  tools/perf/util/evlist.c                 |   2 +-
>  tools/perf/util/evsel.c                  | 325 ++++++++++++++++---------------
>  tools/perf/util/evsel.h                  |   6 +
>  tools/perf/util/header.c                 |  28 +--
>  tools/perf/util/machine.c                |   5 +-
>  tools/perf/util/map.c                    |  20 ++
>  tools/perf/util/map.h                    |   6 +-
>  tools/perf/util/parse-events.c           |   8 +-
>  tools/perf/util/parse-events.l           |   2 +-
>  tools/perf/util/probe-event.c            |   5 +-
>  tools/perf/util/session.c                |   3 +
>  tools/perf/util/symbol-elf.c             |  16 +-
>  tools/perf/util/symbol.c                 |  34 +++-
>  24 files changed, 477 insertions(+), 213 deletions(-)

Pulled, thanks a lot Arnaldo!

	Ingo

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To unsubscribe, send a message with 'unsubscribe linux-mm' in
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[GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

        Please consider pulling, it is the pull req from yesterday, minus a patch
that introduced a problem, plus a fex fixes.

        I am investigating a problem I noticed for another patch that is upstream
and after that will get back to the removed patch from yesterday's batch,

- Arnaldo

The following changes since commit 6645f3187f5beb64f7a40515cfa18f3889264ece:

  Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2015-04-03 07:00:02 +0200)

are available in the git repository at:


  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo

for you to fetch changes up to a1e12da4796a4ddd0e911687a290eb396d1c64bf:

  perf tools: Add 'I' event modifier for exclude_idle bit (2015-04-08 11:00:16 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

- Teach about perf_event_attr.clockid to 'perf record' (Peter Zijlstra)

- perf sched replay improvements for high CPU core count machines (Yunlong Song)

- Consider PERF_RECORD_ events with cpumode == 0 in 'perf top', removing one
  cause of long term memory usage buildup, i.e. not processing PERF_RECORD_EXIT
  events (Arnaldo Carvalho de Melo)

- Add 'I' event modifier for perf_event_attr.exclude_idle bit (Jiri Olsa)

- Respect -i option 'in perf kmem' (Jiri Olsa)

Infrastructure:

- Honor operator priority in libtraceevent (Namhyung Kim)

- Merge all perf_event_attr print functions (Peter Zijlstra)

- Check kmaps access to make code more robust (Wang Nan)

- Fix inverted logic in perf_mmap__empty() (He Kuang)

- Fix ARM 32 'perf probe' building error (Wang Nan)

- Fix perf_event_attr tests (Jiri Olsa)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
He Kuang (1):
      perf evlist: Fix inverted logic in perf_mmap__empty

Jiri Olsa (3):
      perf kmem: Respect -i option
      perf tests: Fix attr tests
      perf tools: Add 'I' event modifier for exclude_idle bit

Namhyung Kim (1):
      tools lib traceevent: Honor operator priority

Peter Zijlstra (2):
      perf record: Add clockid parameter
      perf tools: Merge all perf_event_attr print functions

Wang Nan (3):
      perf kmaps: Check kmaps to make code more robust
      perf probe: Fix ARM 32 building error
      perf report: Don't call map__kmap if map is NULL.

Yunlong Song (9):
      perf sched replay: Use struct task_desc instead of struct task_task for correct meaning
      perf sched replay: Increase the MAX_PID value to fix assertion failure problem
      perf sched replay: Alloc the memory of pid_to_task dynamically to adapt to the unexpected change of pid_max
      perf sched replay: Realloc the memory of pid_to_task stepwise to adapt to the different pid_max configurations
      perf sched replay: Fix the segmentation fault problem caused by pr_err in threads
      perf sched replay: Handle the dead halt of sem_wait when create_tasks() fails for any task
      perf sched replay: Fix the EMFILE error caused by the limitation of the maximum open files
      perf sched replay: Support using -f to override perf.data file ownership
      perf sched replay: Use replay_repeat to calculate the runavg of cpu usage instead of the default value 10

 tools/lib/traceevent/event-parse.c       |  17 +-
 tools/perf/Documentation/perf-list.txt   |   1 +
 tools/perf/Documentation/perf-record.txt |   7 +
 tools/perf/builtin-kmem.c                |   3 +-
 tools/perf/builtin-record.c              |  87 +++++++++
 tools/perf/builtin-report.c              |   2 +-
 tools/perf/builtin-sched.c               |  67 +++++--
 tools/perf/perf.h                        |   2 +
 tools/perf/tests/attr/base-record        |   2 +-
 tools/perf/tests/attr/base-stat          |   2 +-
 tools/perf/tests/parse-events.c          |  40 ++++
 tools/perf/util/evlist.c                 |   2 +-
 tools/perf/util/evsel.c                  | 325 ++++++++++++++++---------------
 tools/perf/util/evsel.h                  |   6 +
 tools/perf/util/header.c                 |  28 +--
 tools/perf/util/machine.c                |   5 +-
 tools/perf/util/map.c                    |  20 ++
 tools/perf/util/map.h                    |   6 +-
 tools/perf/util/parse-events.c           |   8 +-
 tools/perf/util/parse-events.l           |   2 +-
 tools/perf/util/probe-event.c            |   5 +-
 tools/perf/util/session.c                |   3 +
 tools/perf/util/symbol-elf.c             |  16 +-
 tools/perf/util/symbol.c                 |  34 +++-
 24 files changed, 477 insertions(+), 213 deletions(-)

[GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

        Please consider pulling, it is the pull req from yesterday, minus a patch
that introduced a problem, plus a fex fixes.

        I am investigating a problem I noticed for another patch that is upstream
and after that will get back to the removed patch from yesterday's batch,

- Arnaldo

The following changes since commit 6645f3187f5beb64f7a40515cfa18f3889264ece:

  Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2015-04-03 07:00:02 +0200)

are available in the git repository at:


  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo

for you to fetch changes up to a1e12da4796a4ddd0e911687a290eb396d1c64bf:

  perf tools: Add 'I' event modifier for exclude_idle bit (2015-04-08 11:00:16 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

- Teach about perf_event_attr.clockid to 'perf record' (Peter Zijlstra)

- perf sched replay improvements for high CPU core count machines (Yunlong Song)

- Consider PERF_RECORD_ events with cpumode == 0 in 'perf top', removing one
  cause of long term memory usage buildup, i.e. not processing PERF_RECORD_EXIT
  events (Arnaldo Carvalho de Melo)

- Add 'I' event modifier for perf_event_attr.exclude_idle bit (Jiri Olsa)

- Respect -i option 'in perf kmem' (Jiri Olsa)

Infrastructure:

- Honor operator priority in libtraceevent (Namhyung Kim)

- Merge all perf_event_attr print functions (Peter Zijlstra)

- Check kmaps access to make code more robust (Wang Nan)

- Fix inverted logic in perf_mmap__empty() (He Kuang)

- Fix ARM 32 'perf probe' building error (Wang Nan)

- Fix perf_event_attr tests (Jiri Olsa)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
He Kuang (1):
      perf evlist: Fix inverted logic in perf_mmap__empty

Jiri Olsa (3):
      perf kmem: Respect -i option
      perf tests: Fix attr tests
      perf tools: Add 'I' event modifier for exclude_idle bit

Namhyung Kim (1):
      tools lib traceevent: Honor operator priority

Peter Zijlstra (2):
      perf record: Add clockid parameter
      perf tools: Merge all perf_event_attr print functions

Wang Nan (3):
      perf kmaps: Check kmaps to make code more robust
      perf probe: Fix ARM 32 building error
      perf report: Don't call map__kmap if map is NULL.

Yunlong Song (9):
      perf sched replay: Use struct task_desc instead of struct task_task for correct meaning
      perf sched replay: Increase the MAX_PID value to fix assertion failure problem
      perf sched replay: Alloc the memory of pid_to_task dynamically to adapt to the unexpected change of pid_max
      perf sched replay: Realloc the memory of pid_to_task stepwise to adapt to the different pid_max configurations
      perf sched replay: Fix the segmentation fault problem caused by pr_err in threads
      perf sched replay: Handle the dead halt of sem_wait when create_tasks() fails for any task
      perf sched replay: Fix the EMFILE error caused by the limitation of the maximum open files
      perf sched replay: Support using -f to override perf.data file ownership
      perf sched replay: Use replay_repeat to calculate the runavg of cpu usage instead of the default value 10

 tools/lib/traceevent/event-parse.c       |  17 +-
 tools/perf/Documentation/perf-list.txt   |   1 +
 tools/perf/Documentation/perf-record.txt |   7 +
 tools/perf/builtin-kmem.c                |   3 +-
 tools/perf/builtin-record.c              |  87 +++++++++
 tools/perf/builtin-report.c              |   2 +-
 tools/perf/builtin-sched.c               |  67 +++++--
 tools/perf/perf.h                        |   2 +
 tools/perf/tests/attr/base-record        |   2 +-
 tools/perf/tests/attr/base-stat          |   2 +-
 tools/perf/tests/parse-events.c          |  40 ++++
 tools/perf/util/evlist.c                 |   2 +-
 tools/perf/util/evsel.c                  | 325 ++++++++++++++++---------------
 tools/perf/util/evsel.h                  |   6 +
 tools/perf/util/header.c                 |  28 +--
 tools/perf/util/machine.c                |   5 +-
 tools/perf/util/map.c                    |  20 ++
 tools/perf/util/map.h                    |   6 +-
 tools/perf/util/parse-events.c           |   8 +-
 tools/perf/util/parse-events.l           |   2 +-
 tools/perf/util/probe-event.c            |   5 +-
 tools/perf/util/session.c                |   3 +
 tools/perf/util/symbol-elf.c             |  16 +-
 tools/perf/util/symbol.c                 |  34 +++-
 24 files changed, 477 insertions(+), 213 deletions(-)

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@kernel.org> wrote:

> Hi Ingo,
> 
> 	Please consider pulling, this is on top of my previous pull request,
> 
> Thanks,
> 
> - Arnaldo
> 
> The following changes since commit 0c8c20779c5d56b93b8cb4cd30ba129a927ab437:
> 
>   perf report: Don't allow empty argument for '-t'. (2015-03-19 13:53:28 -0300)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-2
> 
> for you to fetch changes up to ca33380adf74afb985bf7aab09ec46707a5d2d57:
> 
>   perf tools: Use kmod_path__parse for machine__new_dso (2015-03-21 14:58:07 -0300)
> 
> ----------------------------------------------------------------
> perf/core improvements and fixes:
> 
> - Handle legacy syscalls tracepoints (David Ahern, Arnaldo Carvalho de Melo)
> 
> - Indicate which callchain entries are annotated in the
>   TUI hists browser (report/top) (Arnaldo Carvalho de Melo)
> 
> - Fix failure to add multiple probes without debuginfo (He Kuang)
> 
> - Fix 'trace' summary_only option (David Ahern)
> 
> - Fix race in build_id_cache__add_s() in 'buildid-cache' (Milos Vyletel)
> 
> - Don't allow empty argument for field-separator, fixing segfault (Wang Nan)
> 
> Infrastructure:
> 
> - Add destructor for format_field in libtraceevent (David Ahern)
> 
> - Prep work for support lzma compressed kernel modules (Jiri Olsa)
> 
> - Update .gitignore with recently added/renamed feature detection files (Yunlong Song)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (2):
>       perf trace: Handle legacy syscalls tracepoints
>       perf hists browser: Indicate which callchain entries are annotated
> 
> David Ahern (2):
>       perf trace: Fix summary_only option
>       tools lib traceevent: Add destructor for format_field
> 
> He Kuang (1):
>       perf probe: Fix failure to add multiple probes without debuginfo
> 
> Jiri Olsa (10):
>       perf build: Fix feature_check name clash
>       perf build: Separate feature make support into config/Makefile.feature
>       perf build: Make features checks directory configurable
>       perf build: Move feature checks code under tools/build
>       tools build: Add feature check for lzma library
>       perf tools: Add lzma decompression support for kernel module
>       perf tools: Add kmod_path__parse function
>       perf tools: Add dsos__addnew function
>       perf tools: Add machine__module_dso function
>       perf tools: Use kmod_path__parse for machine__new_dso
> 
> Milos Vyletel (1):
>       perf tools: Fix race in build_id_cache__add_s()
> 
> Wang Nan (1):
>       perf tools: Don't allow empty argument for field-separator
> 
> Yunlong Song (2):
>       perf build: Use FEATURE-DUMP instead of PERF-FEATURES in the .gitignore file
>       perf build: Add config/feature-checks/*.output to the .gitignore file
> 
>  tools/build/Makefile.feature                       | 171 ++++++++++++++++++++
>  .../feature-checks => build/feature}/.gitignore    |   1 +
>  .../feature-checks => build/feature}/Makefile      |   8 +-
>  .../feature-checks => build/feature}/test-all.c    |   5 +
>  .../feature}/test-backtrace.c                      |   0
>  .../feature-checks => build/feature}/test-bionic.c |   0
>  .../feature}/test-compile.c                        |   0
>  .../feature}/test-cplus-demangle.c                 |   0
>  .../feature-checks => build/feature}/test-dwarf.c  |   0
>  .../feature}/test-fortify-source.c                 |   0
>  .../feature-checks => build/feature}/test-glibc.c  |   0
>  .../feature}/test-gtk2-infobar.c                   |   0
>  .../feature-checks => build/feature}/test-gtk2.c   |   0
>  .../feature-checks => build/feature}/test-hello.c  |   0
>  .../feature}/test-libaudit.c                       |   0
>  .../feature}/test-libbabeltrace.c                  |   0
>  .../feature-checks => build/feature}/test-libbfd.c |   0
>  .../feature}/test-libdw-dwarf-unwind.c             |   0
>  .../feature}/test-libelf-getphdrnum.c              |   0
>  .../feature}/test-libelf-mmap.c                    |   0
>  .../feature-checks => build/feature}/test-libelf.c |   0
>  .../feature}/test-libnuma.c                        |   0
>  .../feature}/test-libperl.c                        |   0
>  .../feature}/test-libpython-version.c              |   0
>  .../feature}/test-libpython.c                      |   0
>  .../feature}/test-libslang.c                       |   0
>  .../feature}/test-libunwind-debug-frame.c          |   0
>  .../feature}/test-libunwind.c                      |   0
>  tools/build/feature/test-lzma.c                    |  10 ++
>  .../feature}/test-pthread-attr-setaffinity-np.c    |   0
>  .../feature}/test-stackprotector-all.c             |   0
>  .../feature}/test-sync-compare-and-swap.c          |   0
>  .../feature}/test-timerfd.c                        |   0
>  .../feature-checks => build/feature}/test-zlib.c   |   0
>  tools/lib/traceevent/event-parse.c                 |  11 +-
>  tools/lib/traceevent/event-parse.h                 |   1 +
>  tools/perf/.gitignore                              |   2 +-
>  tools/perf/Makefile.perf                           |   4 +-
>  tools/perf/builtin-diff.c                          |   2 +-
>  tools/perf/builtin-mem.c                           |   2 +-
>  tools/perf/builtin-trace.c                         |  21 ++-
>  tools/perf/config/Makefile                         | 176 ++-------------------
>  tools/perf/tests/Build                             |   1 +
>  tools/perf/tests/builtin-test.c                    |   4 +
>  tools/perf/tests/kmod-path.c                       |  73 +++++++++
>  tools/perf/tests/tests.h                           |   1 +
>  tools/perf/ui/browsers/hists.c                     |   4 +-
>  tools/perf/util/Build                              |   1 +
>  tools/perf/util/build-id.c                         |   3 +-
>  tools/perf/util/dso.c                              |  90 +++++++++--
>  tools/perf/util/dso.h                              |  15 ++
>  tools/perf/util/lzma.c                             |  95 +++++++++++
>  tools/perf/util/machine.c                          |  83 +++++-----
>  tools/perf/util/probe-event.c                      |   4 +-
>  tools/perf/util/util.h                             |   4 +
>  55 files changed, 557 insertions(+), 235 deletions(-)
>  create mode 100644 tools/build/Makefile.feature
>  rename tools/{perf/config/feature-checks => build/feature}/.gitignore (52%)
>  rename tools/{perf/config/feature-checks => build/feature}/Makefile (96%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-all.c (97%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-backtrace.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-bionic.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-compile.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-cplus-demangle.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-dwarf.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-fortify-source.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-glibc.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-gtk2-infobar.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-gtk2.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-hello.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-libaudit.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-libbabeltrace.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-libbfd.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-libdw-dwarf-unwind.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-libelf-getphdrnum.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-libelf-mmap.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-libelf.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-libnuma.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-libperl.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-libpython-version.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-libpython.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-libslang.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-libunwind-debug-frame.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-libunwind.c (100%)
>  create mode 100644 tools/build/feature/test-lzma.c
>  rename tools/{perf/config/feature-checks => build/feature}/test-pthread-attr-setaffinity-np.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-stackprotector-all.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-sync-compare-and-swap.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-timerfd.c (100%)
>  rename tools/{perf/config/feature-checks => build/feature}/test-zlib.c (100%)
>  create mode 100644 tools/perf/tests/kmod-path.c
>  create mode 100644 tools/perf/util/lzma.c

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling, this is on top of my previous pull request,

Thanks,

- Arnaldo

The following changes since commit 0c8c20779c5d56b93b8cb4cd30ba129a927ab437:

  perf report: Don't allow empty argument for '-t'. (2015-03-19 13:53:28 -0300)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-2

for you to fetch changes up to ca33380adf74afb985bf7aab09ec46707a5d2d57:

  perf tools: Use kmod_path__parse for machine__new_dso (2015-03-21 14:58:07 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

- Handle legacy syscalls tracepoints (David Ahern, Arnaldo Carvalho de Melo)

- Indicate which callchain entries are annotated in the
  TUI hists browser (report/top) (Arnaldo Carvalho de Melo)

- Fix failure to add multiple probes without debuginfo (He Kuang)

- Fix 'trace' summary_only option (David Ahern)

- Fix race in build_id_cache__add_s() in 'buildid-cache' (Milos Vyletel)

- Don't allow empty argument for field-separator, fixing segfault (Wang Nan)

Infrastructure:

- Add destructor for format_field in libtraceevent (David Ahern)

- Prep work for support lzma compressed kernel modules (Jiri Olsa)

- Update .gitignore with recently added/renamed feature detection files (Yunlong Song)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Arnaldo Carvalho de Melo (2):
      perf trace: Handle legacy syscalls tracepoints
      perf hists browser: Indicate which callchain entries are annotated

David Ahern (2):
      perf trace: Fix summary_only option
      tools lib traceevent: Add destructor for format_field

He Kuang (1):
      perf probe: Fix failure to add multiple probes without debuginfo

Jiri Olsa (10):
      perf build: Fix feature_check name clash
      perf build: Separate feature make support into config/Makefile.feature
      perf build: Make features checks directory configurable
      perf build: Move feature checks code under tools/build
      tools build: Add feature check for lzma library
      perf tools: Add lzma decompression support for kernel module
      perf tools: Add kmod_path__parse function
      perf tools: Add dsos__addnew function
      perf tools: Add machine__module_dso function
      perf tools: Use kmod_path__parse for machine__new_dso

Milos Vyletel (1):
      perf tools: Fix race in build_id_cache__add_s()

Wang Nan (1):
      perf tools: Don't allow empty argument for field-separator

Yunlong Song (2):
      perf build: Use FEATURE-DUMP instead of PERF-FEATURES in the .gitignore file
      perf build: Add config/feature-checks/*.output to the .gitignore file

 tools/build/Makefile.feature                       | 171 ++++++++++++++++++++
 .../feature-checks => build/feature}/.gitignore    |   1 +
 .../feature-checks => build/feature}/Makefile      |   8 +-
 .../feature-checks => build/feature}/test-all.c    |   5 +
 .../feature}/test-backtrace.c                      |   0
 .../feature-checks => build/feature}/test-bionic.c |   0
 .../feature}/test-compile.c                        |   0
 .../feature}/test-cplus-demangle.c                 |   0
 .../feature-checks => build/feature}/test-dwarf.c  |   0
 .../feature}/test-fortify-source.c                 |   0
 .../feature-checks => build/feature}/test-glibc.c  |   0
 .../feature}/test-gtk2-infobar.c                   |   0
 .../feature-checks => build/feature}/test-gtk2.c   |   0
 .../feature-checks => build/feature}/test-hello.c  |   0
 .../feature}/test-libaudit.c                       |   0
 .../feature}/test-libbabeltrace.c                  |   0
 .../feature-checks => build/feature}/test-libbfd.c |   0
 .../feature}/test-libdw-dwarf-unwind.c             |   0
 .../feature}/test-libelf-getphdrnum.c              |   0
 .../feature}/test-libelf-mmap.c                    |   0
 .../feature-checks => build/feature}/test-libelf.c |   0
 .../feature}/test-libnuma.c                        |   0
 .../feature}/test-libperl.c                        |   0
 .../feature}/test-libpython-version.c              |   0
 .../feature}/test-libpython.c                      |   0
 .../feature}/test-libslang.c                       |   0
 .../feature}/test-libunwind-debug-frame.c          |   0
 .../feature}/test-libunwind.c                      |   0
 tools/build/feature/test-lzma.c                    |  10 ++
 .../feature}/test-pthread-attr-setaffinity-np.c    |   0
 .../feature}/test-stackprotector-all.c             |   0
 .../feature}/test-sync-compare-and-swap.c          |   0
 .../feature}/test-timerfd.c                        |   0
 .../feature-checks => build/feature}/test-zlib.c   |   0
 tools/lib/traceevent/event-parse.c                 |  11 +-
 tools/lib/traceevent/event-parse.h                 |   1 +
 tools/perf/.gitignore                              |   2 +-
 tools/perf/Makefile.perf                           |   4 +-
 tools/perf/builtin-diff.c                          |   2 +-
 tools/perf/builtin-mem.c                           |   2 +-
 tools/perf/builtin-trace.c                         |  21 ++-
 tools/perf/config/Makefile                         | 176 ++-------------------
 tools/perf/tests/Build                             |   1 +
 tools/perf/tests/builtin-test.c                    |   4 +
 tools/perf/tests/kmod-path.c                       |  73 +++++++++
 tools/perf/tests/tests.h                           |   1 +
 tools/perf/ui/browsers/hists.c                     |   4 +-
 tools/perf/util/Build                              |   1 +
 tools/perf/util/build-id.c                         |   3 +-
 tools/perf/util/dso.c                              |  90 +++++++++--
 tools/perf/util/dso.h                              |  15 ++
 tools/perf/util/lzma.c                             |  95 +++++++++++
 tools/perf/util/machine.c                          |  83 +++++-----
 tools/perf/util/probe-event.c                      |   4 +-
 tools/perf/util/util.h                             |   4 +
 55 files changed, 557 insertions(+), 235 deletions(-)
 create mode 100644 tools/build/Makefile.feature
 rename tools/{perf/config/feature-checks => build/feature}/.gitignore (52%)
 rename tools/{perf/config/feature-checks => build/feature}/Makefile (96%)
 rename tools/{perf/config/feature-checks => build/feature}/test-all.c (97%)
 rename tools/{perf/config/feature-checks => build/feature}/test-backtrace.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-bionic.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-compile.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-cplus-demangle.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-dwarf.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-fortify-source.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-glibc.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-gtk2-infobar.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-gtk2.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-hello.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-libaudit.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-libbabeltrace.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-libbfd.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-libdw-dwarf-unwind.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-libelf-getphdrnum.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-libelf-mmap.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-libelf.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-libnuma.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-libperl.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-libpython-version.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-libpython.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-libslang.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-libunwind-debug-frame.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-libunwind.c (100%)
 create mode 100644 tools/build/feature/test-lzma.c
 rename tools/{perf/config/feature-checks => build/feature}/test-pthread-attr-setaffinity-np.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-stackprotector-all.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-sync-compare-and-swap.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-timerfd.c (100%)
 rename tools/{perf/config/feature-checks => build/feature}/test-zlib.c (100%)
 create mode 100644 tools/perf/tests/kmod-path.c
 create mode 100644 tools/perf/util/lzma.c

[GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit 0afb1704010f60e7ae85aef0f93fc10f2d99761e:

  Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2015-02-26 12:25:20 +0100)

are available in the git repository at:


  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo

for you to fetch changes up to fefd2d9619de3bf0bf02a8622e9f445c3d19cc3f:

  perf report: Fix branch stack mode cannot be set (2015-02-27 15:52:42 -0300)

----------------------------------------------------------------
perf/core improvements and fixes:

User visible:

- Fix SIGBUS failures due to misaligned accesses in Sparc64 (David Ahern)

- Fix branch stack mode in 'perf report' (He Kuang)

- Fix a 'perf probe' operator precedence bug (He Kuang)

- Fix Support for different binaries with same name in 'perf diff' (Kan Liang)

- Check kprobes blacklist when adding new events via 'perf probe' (Masami Hiramatsu)

- Add --purge FILE to remove all caches of FILE in 'perf buildid-cache' (Masami Hiramatsu)

- Show usage with some incorrect params (Masami Hiramatsu)

- Add new buildid cache if update target is not cached in 'buildid-cache' (Masami Hiramatsu)

- Allow listing events with 'tracepoint' prefix in 'perf list' (Yunlong Song)

- Sort the output of 'perf list' (Yunlong Song)

- Fix bash completion of 'perf --' (Yunlong Song)

Developer Zone:

- Handle strdup() failure path in 'perf probe' (Arnaldo Carvalho de Melo)

- Fix get_real_path to free allocated memory in error path in 'perf probe' (Masami Hiramatsu)

- Use pr_debug instead of verbose && pr_info perf buildid-cache (Masami Hiramatsu)

- Fix building of 'perf data' with some gcc versions due to incorrect array struct
  entry (Yunlong Song)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Arnaldo Carvalho de Melo (1):
      perf probe: Handle strdup() failure

David Ahern (1):
      perf trace: Fix SIGBUS failures due to misaligned accesses

He Kuang (2):
      perf probe: Fix a precedence bug
      perf report: Fix branch stack mode cannot be set

Kan Liang (1):
      perf diff: Support for different binaries

Masami Hiramatsu (6):
      perf probe: Check kprobes blacklist when adding new events
      perf probe: Fix get_real_path to free allocated memory in error path
      perf buildid-cache: Add new buildid cache if update target is not cached
      perf buildid-cache: Add --purge FILE to remove all caches of FILE
      perf buildid-cache: Use pr_debug instead of verbose && pr_info
      perf buildid-cache: Show usage with incorrect params

Yunlong Song (8):
      perf data: Fix sentinel setting for data_cmds array
      perf list: Sort the output of 'perf list' to view more clearly
      perf list: Allow listing events with 'tracepoint' prefix
      perf list: Avoid confusion of perf output and the next command prompt
      perf tools: Remove the '--(null)' long_name for --list-opts
      perf list: Clean up the printing functions of hardware/software events
      perf list: Extend raw-dump to certain kind of events
      perf tools: Fix the bash completion problem of 'perf --*'

 tools/perf/Documentation/perf-buildid-cache.txt |  24 ++-
 tools/perf/Documentation/perf-diff.txt          |   5 +
 tools/perf/Documentation/perf-list.txt          |   6 +
 tools/perf/builtin-buildid-cache.c              |  72 ++++++--
 tools/perf/builtin-data.c                       |   2 +-
 tools/perf/builtin-list.c                       |  27 ++-
 tools/perf/builtin-report.c                     |   2 +-
 tools/perf/builtin-trace.c                      |  36 +++-
 tools/perf/perf-completion.sh                   |   6 +-
 tools/perf/perf.c                               |  28 ++++
 tools/perf/util/build-id.c                      | 105 ++++++++++--
 tools/perf/util/build-id.h                      |   4 +
 tools/perf/util/parse-events.c                  | 210 +++++++++++++++++-------
 tools/perf/util/parse-events.h                  |  11 +-
 tools/perf/util/parse-options.c                 |   5 +-
 tools/perf/util/probe-event.c                   | 117 ++++++++++++-
 tools/perf/util/sort.c                          |   9 +
 17 files changed, 542 insertions(+), 127 deletions(-)

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@infradead.org> wrote:

> From: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
> 
> Hi Ingo,
> 
> 	Please consider pulling,
> 
> - Arnaldo
> 
> The following changes since commit 3e7e09dbd1080de5dcf10092830e39bc2e2932ec:
> 
>   Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2014-01-16 09:34:01 +0100)
> 
> are available in the git repository at:
> 
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux tags/perf-core-for-mingo
> 
> for you to fetch changes up to 2a29190c040c0b11e39197c67abf6f87e0a61f9a:
> 
>   perf tools: Remove unnecessary callchain cursor state restore on unmatch (2014-01-17 11:25:24 -0300)
> 
> ----------------------------------------------------------------
> Developer stuff:
> 
> . Improve callchain processing by removing unnecessary work. (Frederic Weisbecker)
> 
> . Fix comm override error handling (Frederic Weisbecker)
> 
> . Improve 'perf probe' exit path, release resources (Masami Hiramatsu)
> 
> . Improve libtraceevent plugins exit path, allowing the registering of
>   an unregister handler to be called at exit time (Namhyung Kim)
> 
> . Add an alias to the build test makefile (make -C tools/perf build-test)
>   (Namhyung Kim)
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Frederic Weisbecker (3):
>       perf tools: Do proper comm override error handling
>       perf callchain: Spare double comparison of callchain first entry
>       perf tools: Remove unnecessary callchain cursor state restore on unmatch
> 
> Masami Hiramatsu (3):
>       perf probe: Release allocated probe_trace_event if failed
>       perf probe: Release all dynamically allocated parameters
>       perf symbols: Export elf_section_by_name and reuse
> 
> Namhyung Kim (13):
>       tools lib traceevent: Add pevent_unregister_event_handler()
>       tools lib traceevent: Add pevent_unregister_print_function()
>       tools lib traceevent: Unregister handler when function plugin is unloaded
>       tools lib traceevent: Unregister handler when hrtimer plugin is unloaded
>       tools lib traceevent: Unregister handler when kmem plugin is unloaded
>       tools lib traceevent: Unregister handler when kvm plugin is unloaded
>       tools lib traceevent: Unregister handler when sched_switch plugin is unloaded
>       tools lib traceevent: Unregister handler when mac80211 plugin is unloaded
>       tools lib traceevent: Unregister handler when cfg80211 plugin is unloaded
>       tools lib traceevent: Unregister handler when jbd2 plugin is is unloaded
>       tools lib traceevent: Unregister handler when scsi plugin is unloaded
>       tools lib traceevent: Unregister handler when xen plugin is unloaded
>       perf tools: Add 'build-test' make target
> 
>  tools/lib/traceevent/event-parse.c         | 136 ++++++++++++++++++++++++++---
>  tools/lib/traceevent/event-parse.h         |   5 ++
>  tools/lib/traceevent/plugin_cfg80211.c     |   6 ++
>  tools/lib/traceevent/plugin_function.c     |   3 +
>  tools/lib/traceevent/plugin_hrtimer.c      |  10 +++
>  tools/lib/traceevent/plugin_jbd2.c         |   9 ++
>  tools/lib/traceevent/plugin_kmem.c         |  22 +++++
>  tools/lib/traceevent/plugin_kvm.c          |  29 ++++++
>  tools/lib/traceevent/plugin_mac80211.c     |   7 ++
>  tools/lib/traceevent/plugin_sched_switch.c |  12 +++
>  tools/lib/traceevent/plugin_scsi.c         |   6 ++
>  tools/lib/traceevent/plugin_xen.c          |   6 ++
>  tools/perf/Makefile                        |   6 ++
>  tools/perf/builtin-probe.c                 |  48 ++++++++--
>  tools/perf/util/callchain.c                |  23 +++--
>  tools/perf/util/comm.c                     |  19 ++--
>  tools/perf/util/comm.h                     |   2 +-
>  tools/perf/util/probe-event.c              | 111 +++++++++++++----------
>  tools/perf/util/probe-event.h              |   6 ++
>  tools/perf/util/symbol-elf.c               |   5 +-
>  tools/perf/util/symbol.h                   |   5 ++
>  tools/perf/util/thread.c                   |   5 +-
>  tools/perf/util/unwind.c                   |  20 +----
>  23 files changed, 389 insertions(+), 112 deletions(-)

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

From: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit 3e7e09dbd1080de5dcf10092830e39bc2e2932ec:

  Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2014-01-16 09:34:01 +0100)

are available in the git repository at:


  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux tags/perf-core-for-mingo

for you to fetch changes up to 2a29190c040c0b11e39197c67abf6f87e0a61f9a:

  perf tools: Remove unnecessary callchain cursor state restore on unmatch (2014-01-17 11:25:24 -0300)

----------------------------------------------------------------
Developer stuff:

. Improve callchain processing by removing unnecessary work. (Frederic Weisbecker)

. Fix comm override error handling (Frederic Weisbecker)

. Improve 'perf probe' exit path, release resources (Masami Hiramatsu)

. Improve libtraceevent plugins exit path, allowing the registering of
  an unregister handler to be called at exit time (Namhyung Kim)

. Add an alias to the build test makefile (make -C tools/perf build-test)
  (Namhyung Kim)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Frederic Weisbecker (3):
      perf tools: Do proper comm override error handling
      perf callchain: Spare double comparison of callchain first entry
      perf tools: Remove unnecessary callchain cursor state restore on unmatch

Masami Hiramatsu (3):
      perf probe: Release allocated probe_trace_event if failed
      perf probe: Release all dynamically allocated parameters
      perf symbols: Export elf_section_by_name and reuse

Namhyung Kim (13):
      tools lib traceevent: Add pevent_unregister_event_handler()
      tools lib traceevent: Add pevent_unregister_print_function()
      tools lib traceevent: Unregister handler when function plugin is unloaded
      tools lib traceevent: Unregister handler when hrtimer plugin is unloaded
      tools lib traceevent: Unregister handler when kmem plugin is unloaded
      tools lib traceevent: Unregister handler when kvm plugin is unloaded
      tools lib traceevent: Unregister handler when sched_switch plugin is unloaded
      tools lib traceevent: Unregister handler when mac80211 plugin is unloaded
      tools lib traceevent: Unregister handler when cfg80211 plugin is unloaded
      tools lib traceevent: Unregister handler when jbd2 plugin is is unloaded
      tools lib traceevent: Unregister handler when scsi plugin is unloaded
      tools lib traceevent: Unregister handler when xen plugin is unloaded
      perf tools: Add 'build-test' make target

 tools/lib/traceevent/event-parse.c         | 136 ++++++++++++++++++++++++++---
 tools/lib/traceevent/event-parse.h         |   5 ++
 tools/lib/traceevent/plugin_cfg80211.c     |   6 ++
 tools/lib/traceevent/plugin_function.c     |   3 +
 tools/lib/traceevent/plugin_hrtimer.c      |  10 +++
 tools/lib/traceevent/plugin_jbd2.c         |   9 ++
 tools/lib/traceevent/plugin_kmem.c         |  22 +++++
 tools/lib/traceevent/plugin_kvm.c          |  29 ++++++
 tools/lib/traceevent/plugin_mac80211.c     |   7 ++
 tools/lib/traceevent/plugin_sched_switch.c |  12 +++
 tools/lib/traceevent/plugin_scsi.c         |   6 ++
 tools/lib/traceevent/plugin_xen.c          |   6 ++
 tools/perf/Makefile                        |   6 ++
 tools/perf/builtin-probe.c                 |  48 ++++++++--
 tools/perf/util/callchain.c                |  23 +++--
 tools/perf/util/comm.c                     |  19 ++--
 tools/perf/util/comm.h                     |   2 +-
 tools/perf/util/probe-event.c              | 111 +++++++++++++----------
 tools/perf/util/probe-event.h              |   6 ++
 tools/perf/util/symbol-elf.c               |   5 +-
 tools/perf/util/symbol.h                   |   5 ++
 tools/perf/util/thread.c                   |   5 +-
 tools/perf/util/unwind.c                   |  20 +----
 23 files changed, 389 insertions(+), 112 deletions(-)

Re: [GIT PULL 00/19] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@infradead.org> wrote:

> Hi Ingo,
> 
> 	Please consider pulling,
> 
> - Arnaldo
> 
> The following changes since commit 73787190d04a34e6da745da893b3ae8bedde418f:
> 
>   Merge branch 'perf/parse-events-4' of git://github.com/fweisbec/tracing into perf/core (2012-05-21 10:42:09 +0200)
> 
> are available in the git repository at:
> 
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux perf/core
> 
> for you to fetch changes up to 26252ea675663d1bc6747125fcaa2b7cc4ed8a03:
> 
>   perf evlist: Show event attribute details (2012-05-22 14:30:11 -0300)
> 
> ----------------------------------------------------------------
> Fixes and improvements for perf/core:
> 
> . Fix perf perl script build fallout from libtraceevent conversion,
>   from Frederic Weisbecker.
> 
> . Libtraceevent Makefile fixes, from Namhyung Kim
> 
> . Pipe mode fixes, from Stephane Eranian
> 
> . Event parsing improvements, from Jiri Olsa.
> 
> . Endianness fixes, from Jiri Olsa
> 
> . Bump the default sampling freq to 4 kHz, requested by Ingo Molnar.
> 
> . Show event attribute details, such as the sampling freq, in the
>   'perf evlist' command.
> 
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> 
> ----------------------------------------------------------------
> Anshuman Khandual (1):
>       perf record: Fix documentation for branch stack sampling
> 
> Arnaldo Carvalho de Melo (2):
>       perf tools: Bump default sample freq to 4 kHz
>       perf evlist: Show event attribute details
> 
> Frederic Weisbecker (2):
>       perf script: Explicitly handle known default print arg type
>       perf script: Rename struct event to struct event_format in perl engine
> 
> Jiri Olsa (7):
>       perf test: Move parse event automated tests to separated object
>       perf tools: Add support for displaying event parser debug info
>       perf tools: Use allocated list for each parsed event
>       perf tools: Separate 'mem:' event scanner bits
>       perf tools: Add hardcoded name term for pmu events
>       perf tools: Carry perf_event_attr bitfield throught different endians
>       perf tools: Add union u64_swap type for swapping u64 data
> 
> Namhyung Kim (3):
>       perf tools: Rename libparsevent to libtraceevent in Makefile
>       perf tools: Always try to build libtraceevent
>       perf target: Add cpu flag to sample_type if target has cpu
> 
> Stephane Eranian (4):
>       perf tools: rename HEADER_TRACE_INFO to HEADER_TRACING_DATA
>       perf inject: Fix broken perf inject -b
>       perf tools: Fix piped mode read code
>       perf buildid-list: Work better with pipe mode
> 
>  tools/perf/Documentation/perf-evlist.txt           |    8 +
>  tools/perf/Documentation/perf-record.txt           |    2 +-
>  tools/perf/Makefile                                |   37 +-
>  tools/perf/builtin-buildid-list.c                  |    6 +-
>  tools/perf/builtin-evlist.c                        |  103 +++-
>  tools/perf/builtin-inject.c                        |    5 +
>  tools/perf/builtin-record.c                        |    6 +-
>  tools/perf/builtin-test.c                          |  552 +----------------
>  tools/perf/builtin-top.c                           |    5 +-
>  tools/perf/util/build-id.c                         |    2 +
>  tools/perf/util/evsel.c                            |   12 +-
>  tools/perf/util/header.c                           |   10 +-
>  tools/perf/util/header.h                           |    2 +-
>  tools/perf/util/parse-events-test.c                |  625 ++++++++++++++++++++
>  tools/perf/util/parse-events.c                     |   69 ++-
>  tools/perf/util/parse-events.h                     |   20 +-
>  tools/perf/util/parse-events.l                     |   26 +-
>  tools/perf/util/parse-events.y                     |   77 ++-
>  tools/perf/util/pmu.c                              |    4 +-
>  .../perf/util/scripting-engines/trace-event-perl.c |   16 +-
>  tools/perf/util/session.c                          |   68 ++-
>  tools/perf/util/types.h                            |    5 +
>  22 files changed, 1002 insertions(+), 658 deletions(-)
>  create mode 100644 tools/perf/util/parse-events-test.c

Pulled, thanks a lot Arnaldo!

	Ingo

[GIT PULL 00/19] perf/core improvements and fixes

[Arnaldo Carvalho de Melo]

Hi Ingo,

	Please consider pulling,

- Arnaldo

The following changes since commit 73787190d04a34e6da745da893b3ae8bedde418f:

  Merge branch 'perf/parse-events-4' of git://github.com/fweisbec/tracing into perf/core (2012-05-21 10:42:09 +0200)

are available in the git repository at:


  git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux perf/core

for you to fetch changes up to 26252ea675663d1bc6747125fcaa2b7cc4ed8a03:

  perf evlist: Show event attribute details (2012-05-22 14:30:11 -0300)

----------------------------------------------------------------
Fixes and improvements for perf/core:

. Fix perf perl script build fallout from libtraceevent conversion,
  from Frederic Weisbecker.

. Libtraceevent Makefile fixes, from Namhyung Kim

. Pipe mode fixes, from Stephane Eranian

. Event parsing improvements, from Jiri Olsa.

. Endianness fixes, from Jiri Olsa

. Bump the default sampling freq to 4 kHz, requested by Ingo Molnar.

. Show event attribute details, such as the sampling freq, in the
  'perf evlist' command.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

----------------------------------------------------------------
Anshuman Khandual (1):
      perf record: Fix documentation for branch stack sampling

Arnaldo Carvalho de Melo (2):
      perf tools: Bump default sample freq to 4 kHz
      perf evlist: Show event attribute details

Frederic Weisbecker (2):
      perf script: Explicitly handle known default print arg type
      perf script: Rename struct event to struct event_format in perl engine

Jiri Olsa (7):
      perf test: Move parse event automated tests to separated object
      perf tools: Add support for displaying event parser debug info
      perf tools: Use allocated list for each parsed event
      perf tools: Separate 'mem:' event scanner bits
      perf tools: Add hardcoded name term for pmu events
      perf tools: Carry perf_event_attr bitfield throught different endians
      perf tools: Add union u64_swap type for swapping u64 data

Namhyung Kim (3):
      perf tools: Rename libparsevent to libtraceevent in Makefile
      perf tools: Always try to build libtraceevent
      perf target: Add cpu flag to sample_type if target has cpu

Stephane Eranian (4):
      perf tools: rename HEADER_TRACE_INFO to HEADER_TRACING_DATA
      perf inject: Fix broken perf inject -b
      perf tools: Fix piped mode read code
      perf buildid-list: Work better with pipe mode

 tools/perf/Documentation/perf-evlist.txt           |    8 +
 tools/perf/Documentation/perf-record.txt           |    2 +-
 tools/perf/Makefile                                |   37 +-
 tools/perf/builtin-buildid-list.c                  |    6 +-
 tools/perf/builtin-evlist.c                        |  103 +++-
 tools/perf/builtin-inject.c                        |    5 +
 tools/perf/builtin-record.c                        |    6 +-
 tools/perf/builtin-test.c                          |  552 +----------------
 tools/perf/builtin-top.c                           |    5 +-
 tools/perf/util/build-id.c                         |    2 +
 tools/perf/util/evsel.c                            |   12 +-
 tools/perf/util/header.c                           |   10 +-
 tools/perf/util/header.h                           |    2 +-
 tools/perf/util/parse-events-test.c                |  625 ++++++++++++++++++++
 tools/perf/util/parse-events.c                     |   69 ++-
 tools/perf/util/parse-events.h                     |   20 +-
 tools/perf/util/parse-events.l                     |   26 +-
 tools/perf/util/parse-events.y                     |   77 ++-
 tools/perf/util/pmu.c                              |    4 +-
 .../perf/util/scripting-engines/trace-event-perl.c |   16 +-
 tools/perf/util/session.c                          |   68 ++-
 tools/perf/util/types.h                            |    5 +
 22 files changed, 1002 insertions(+), 658 deletions(-)
 create mode 100644 tools/perf/util/parse-events-test.c