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From: tip-bot for Namhyung Kim <tipbot@zytor.com>
To: linux-tip-commits@vger.kernel.org
Cc: jolsa@redhat.com, tglx@linutronix.de,
	linux-kernel@vger.kernel.org, torvalds@linux-foundation.org,
	peterz@infradead.org, milian.wolff@kdab.com, acme@kernel.org,
	namhyung@kernel.org, mingo@kernel.org, hpa@zytor.com,
	acme@redhat.com, jolsa@kernel.org, yao.jin@linux.intel.com
Subject: [tip:perf/urgent] perf script: Add --inline option for debugging
Date: Wed, 24 May 2017 00:05:32 -0700
Message-ID: <tip-325fbff51f961491adff4037d0e0a94d6132bd9b@git.kernel.org> (raw)
In-Reply-To: <20170524062129.32529-5-namhyung@kernel.org>

Commit-ID:  325fbff51f961491adff4037d0e0a94d6132bd9b
Gitweb:     http://git.kernel.org/tip/325fbff51f961491adff4037d0e0a94d6132bd9b
Author:     Namhyung Kim <namhyung@kernel.org>
AuthorDate: Wed, 24 May 2017 15:21:26 +0900
Committer:  Ingo Molnar <mingo@kernel.org>
CommitDate: Wed, 24 May 2017 08:41:48 +0200

perf script: Add --inline option for debugging

The --inline option is to show inlined functions in callchains.

For example:

  $ perf script
  a.out  5644 11611.467597:     309961 cycles:u:
                     790 main (/home/namhyung/tmp/perf/a.out)
                   20511 __libc_start_main (/usr/lib/libc-2.25.so)
                     8ba _start (/home/namhyung/tmp/perf/a.out)
  ...

  $ perf script --inline
  a.out  5644 11611.467597:     309961 cycles:u:
                     790 main (/home/namhyung/tmp/perf/a.out)
                         std::__detail::_Adaptor<std::linear_congruential_engine<unsigned long, 16807ul, 0ul, 2147483647ul>, double>::operator()
                         std::uniform_real_distribution<double>::operator()<std::linear_congruential_engine<unsigned long, 16807ul, 0ul, 2147483647ul> >
                         std::uniform_real_distribution<double>::operator()<std::linear_congruential_engine<unsigned long, 16807ul, 0ul, 2147483647ul> >
                         main
                   20511 __libc_start_main (/usr/lib/libc-2.25.so)
                     8ba _start (/home/namhyung/tmp/perf/a.out)
  ...

Reviewed-and-tested-by: Milian Wolff <milian.wolff@kdab.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: kernel-team@lge.com
Link: http://lkml.kernel.org/r/20170524062129.32529-5-namhyung@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/Documentation/perf-script.txt |  4 ++++
 tools/perf/builtin-script.c              |  2 ++
 tools/perf/util/evsel_fprintf.c          | 33 ++++++++++++++++++++++++++++++++
 3 files changed, 39 insertions(+)

diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt
index cb0eda3..3517e20 100644
--- a/tools/perf/Documentation/perf-script.txt
+++ b/tools/perf/Documentation/perf-script.txt
@@ -311,6 +311,10 @@ include::itrace.txt[]
 	Set the maximum number of program blocks to print with brstackasm for
 	each sample.
 
+--inline::
+	If a callgraph address belongs to an inlined function, the inline stack
+	will be printed. Each entry has function name and file/line.
+
 SEE ALSO
 --------
 linkperf:perf-record[1], linkperf:perf-script-perl[1],
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index d05aec4..4761b0d 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -2494,6 +2494,8 @@ int cmd_script(int argc, const char **argv)
 			"Enable kernel symbol demangling"),
 	OPT_STRING(0, "time", &script.time_str, "str",
 		   "Time span of interest (start,stop)"),
+	OPT_BOOLEAN(0, "inline", &symbol_conf.inline_name,
+		    "Show inline function"),
 	OPT_END()
 	};
 	const char * const script_subcommands[] = { "record", "report", NULL };
diff --git a/tools/perf/util/evsel_fprintf.c b/tools/perf/util/evsel_fprintf.c
index e415aee..583f3a6 100644
--- a/tools/perf/util/evsel_fprintf.c
+++ b/tools/perf/util/evsel_fprintf.c
@@ -7,6 +7,7 @@
 #include "map.h"
 #include "strlist.h"
 #include "symbol.h"
+#include "srcline.h"
 
 static int comma_fprintf(FILE *fp, bool *first, const char *fmt, ...)
 {
@@ -168,6 +169,38 @@ int sample__fprintf_callchain(struct perf_sample *sample, int left_alignment,
 			if (!print_oneline)
 				printed += fprintf(fp, "\n");
 
+			if (symbol_conf.inline_name && node->map) {
+				struct inline_node *inode;
+
+				addr = map__rip_2objdump(node->map, node->ip),
+				inode = dso__parse_addr_inlines(node->map->dso, addr);
+
+				if (inode) {
+					struct inline_list *ilist;
+
+					list_for_each_entry(ilist, &inode->val, list) {
+						if (print_arrow)
+							printed += fprintf(fp, " <-");
+
+						/* IP is same, just skip it */
+						if (print_ip)
+							printed += fprintf(fp, "%c%16s",
+									   s, "");
+						if (print_sym)
+							printed += fprintf(fp, " %s",
+									   ilist->funcname);
+						if (print_srcline)
+							printed += fprintf(fp, "\n  %s:%d",
+									   ilist->filename,
+									   ilist->line_nr);
+						if (!print_oneline)
+							printed += fprintf(fp, "\n");
+					}
+
+					inline_node__delete(inode);
+				}
+			}
+
 			if (symbol_conf.bt_stop_list &&
 			    node->sym &&
 			    strlist__has_entry(symbol_conf.bt_stop_list,

  parent reply index

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-05-24  6:21 [GIT PULL 0/7] perf/urgent callchain fixes Namhyung Kim
2017-05-24  6:21 ` [PATCH 1/7] perf report: don't crash on invalid maps in `-g srcline` mode Namhyung Kim
2017-05-24  7:03   ` [tip:perf/urgent] perf report: Don't " tip-bot for Milian Wolff
2017-05-24  6:21 ` [PATCH 2/7] perf report: fix memory leak in addr2line when called by addr2inlines Namhyung Kim
2017-05-24  7:04   ` [tip:perf/urgent] perf report: Fix " tip-bot for Milian Wolff
2017-05-24  6:21 ` [PATCH 3/7] perf report: fix off-by-one for non-activation frames Namhyung Kim
2017-05-24  7:05   ` [tip:perf/urgent] perf report: Fix " tip-bot for Milian Wolff
2017-05-24  6:21 ` [PATCH 4/7] perf script: Add --inline option Namhyung Kim
2017-05-24  6:38   ` Ingo Molnar
2017-05-24  7:13     ` Namhyung Kim
2017-05-24  7:21       ` Ingo Molnar
2017-05-24  7:53         ` Milian Wolff
2017-05-24  8:06           ` Ingo Molnar
2017-05-24  7:05   ` tip-bot for Namhyung Kim [this message]
2017-05-24  6:21 ` [PATCH 5/7] perf report: always honor callchain order for inlined nodes Namhyung Kim
2017-05-24  7:06   ` [tip:perf/urgent] perf report: Always " tip-bot for Milian Wolff
2017-05-24  6:21 ` [PATCH 6/7] perf report: do not drop last inlined frame Namhyung Kim
2017-05-24  7:06   ` [tip:perf/urgent] perf report: Do " tip-bot for Milian Wolff
2017-05-24  6:21 ` [PATCH 7/7] perf tools: Fix to put caller above callee in children mode Namhyung Kim
2017-05-24  7:07   ` [tip:perf/urgent] perf tools: Put caller above callee in --children mode tip-bot for Namhyung Kim
2017-05-24  6:53 ` [GIT PULL 0/7] perf/urgent callchain fixes Ingo Molnar
2017-05-24  6:57   ` [PATCH] tools/include: Sync kernel ABI headers with tooling headers Ingo Molnar
2017-05-24  7:07     ` [tip:perf/urgent] " tip-bot for Ingo Molnar
2017-06-08 13:15 ` [GIT PULL 0/7] perf/urgent callchain fixes Milian Wolff
2017-06-08 13:59   ` Arnaldo Carvalho de Melo
2017-06-08 14:34     ` Milian Wolff

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