From: Ian Rogers <irogers@google.com>
To: Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@kernel.org>, Namhyung Kim <namhyung@kernel.org>,
Andres Freund <andres@anarazel.de>,
Quentin Monnet <quentin@isovalent.com>,
Roberto Sassu <roberto.sassu@huawei.com>,
Christy Lee <christylee@fb.com>,
Andrii Nakryiko <andrii@kernel.org>,
Adrian Hunter <adrian.hunter@intel.com>,
linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
bpf@vger.kernel.org
Cc: Ian Rogers <irogers@google.com>
Subject: [PATCH v1 2/3] perf build: Remove libbpf pre-1.0 feature tests
Date: Mon, 9 Jan 2023 12:34:23 -0800 [thread overview]
Message-ID: <20230109203424.1157561-3-irogers@google.com> (raw)
In-Reply-To: <20230109203424.1157561-1-irogers@google.com>
The feature tests were necessary for libbpf pre-1.0, but as the libbpf
implies at least 1.0 we can remove these now.
Signed-off-by: Ian Rogers <irogers@google.com>
---
tools/build/feature/Makefile | 7 ---
.../feature/test-libbpf-bpf_map_create.c | 8 ----
.../test-libbpf-bpf_object__next_map.c | 8 ----
.../test-libbpf-bpf_object__next_program.c | 8 ----
.../build/feature/test-libbpf-bpf_prog_load.c | 9 ----
.../test-libbpf-bpf_program__set_insns.c | 8 ----
.../test-libbpf-btf__load_from_kernel_by_id.c | 8 ----
.../build/feature/test-libbpf-btf__raw_data.c | 8 ----
tools/perf/Makefile.config | 46 ++++---------------
9 files changed, 10 insertions(+), 100 deletions(-)
delete mode 100644 tools/build/feature/test-libbpf-bpf_map_create.c
delete mode 100644 tools/build/feature/test-libbpf-bpf_object__next_map.c
delete mode 100644 tools/build/feature/test-libbpf-bpf_object__next_program.c
delete mode 100644 tools/build/feature/test-libbpf-bpf_prog_load.c
delete mode 100644 tools/build/feature/test-libbpf-bpf_program__set_insns.c
delete mode 100644 tools/build/feature/test-libbpf-btf__load_from_kernel_by_id.c
delete mode 100644 tools/build/feature/test-libbpf-btf__raw_data.c
diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
index 690fe97be190..dc9323e01e42 100644
--- a/tools/build/feature/Makefile
+++ b/tools/build/feature/Makefile
@@ -58,13 +58,6 @@ FILES= \
test-lzma.bin \
test-bpf.bin \
test-libbpf.bin \
- test-libbpf-btf__load_from_kernel_by_id.bin \
- test-libbpf-bpf_prog_load.bin \
- test-libbpf-bpf_map_create.bin \
- test-libbpf-bpf_object__next_program.bin \
- test-libbpf-bpf_object__next_map.bin \
- test-libbpf-bpf_program__set_insns.bin \
- test-libbpf-btf__raw_data.bin \
test-get_cpuid.bin \
test-sdt.bin \
test-cxx.bin \
diff --git a/tools/build/feature/test-libbpf-bpf_map_create.c b/tools/build/feature/test-libbpf-bpf_map_create.c
deleted file mode 100644
index b9f550e332c8..000000000000
--- a/tools/build/feature/test-libbpf-bpf_map_create.c
+++ /dev/null
@@ -1,8 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <bpf/bpf.h>
-
-int main(void)
-{
- return bpf_map_create(0 /* map_type */, NULL /* map_name */, 0, /* key_size */,
- 0 /* value_size */, 0 /* max_entries */, NULL /* opts */);
-}
diff --git a/tools/build/feature/test-libbpf-bpf_object__next_map.c b/tools/build/feature/test-libbpf-bpf_object__next_map.c
deleted file mode 100644
index 64adb519e97e..000000000000
--- a/tools/build/feature/test-libbpf-bpf_object__next_map.c
+++ /dev/null
@@ -1,8 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <bpf/libbpf.h>
-
-int main(void)
-{
- bpf_object__next_map(NULL /* obj */, NULL /* prev */);
- return 0;
-}
diff --git a/tools/build/feature/test-libbpf-bpf_object__next_program.c b/tools/build/feature/test-libbpf-bpf_object__next_program.c
deleted file mode 100644
index 8bf4fd26b545..000000000000
--- a/tools/build/feature/test-libbpf-bpf_object__next_program.c
+++ /dev/null
@@ -1,8 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <bpf/libbpf.h>
-
-int main(void)
-{
- bpf_object__next_program(NULL /* obj */, NULL /* prev */);
- return 0;
-}
diff --git a/tools/build/feature/test-libbpf-bpf_prog_load.c b/tools/build/feature/test-libbpf-bpf_prog_load.c
deleted file mode 100644
index 47f516d63ebc..000000000000
--- a/tools/build/feature/test-libbpf-bpf_prog_load.c
+++ /dev/null
@@ -1,9 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <bpf/bpf.h>
-
-int main(void)
-{
- return bpf_prog_load(0 /* prog_type */, NULL /* prog_name */,
- NULL /* license */, NULL /* insns */,
- 0 /* insn_cnt */, NULL /* opts */);
-}
diff --git a/tools/build/feature/test-libbpf-bpf_program__set_insns.c b/tools/build/feature/test-libbpf-bpf_program__set_insns.c
deleted file mode 100644
index f3b7f18c8f49..000000000000
--- a/tools/build/feature/test-libbpf-bpf_program__set_insns.c
+++ /dev/null
@@ -1,8 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <bpf/libbpf.h>
-
-int main(void)
-{
- bpf_program__set_insns(NULL /* prog */, NULL /* new_insns */, 0 /* new_insn_cnt */);
- return 0;
-}
diff --git a/tools/build/feature/test-libbpf-btf__load_from_kernel_by_id.c b/tools/build/feature/test-libbpf-btf__load_from_kernel_by_id.c
deleted file mode 100644
index a17647f7d5a4..000000000000
--- a/tools/build/feature/test-libbpf-btf__load_from_kernel_by_id.c
+++ /dev/null
@@ -1,8 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <bpf/btf.h>
-
-int main(void)
-{
- btf__load_from_kernel_by_id(20151128);
- return 0;
-}
diff --git a/tools/build/feature/test-libbpf-btf__raw_data.c b/tools/build/feature/test-libbpf-btf__raw_data.c
deleted file mode 100644
index 57da31dd7581..000000000000
--- a/tools/build/feature/test-libbpf-btf__raw_data.c
+++ /dev/null
@@ -1,8 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <bpf/btf.h>
-
-int main(void)
-{
- btf__raw_data(NULL /* btf_ro */, NULL /* size */);
- return 0;
-}
diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 7c00ce0a7464..399e03338613 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -565,52 +565,26 @@ ifndef NO_LIBELF
# detecting libbpf without LIBBPF_DYNAMIC, so make VF=1 shows libbpf detection status
$(call feature_check,libbpf)
+
+ # Feature test requires libbpf 1.0 so we can assume the following:
+ CFLAGS += -DHAVE_LIBBPF_BTF__LOAD_FROM_KERNEL_BY_ID
+ CFLAGS += -DHAVE_LIBBPF_BPF_PROG_LOAD
+ CFLAGS += -DHAVE_LIBBPF_BPF_OBJECT__NEXT_PROGRAM
+ CFLAGS += -DHAVE_LIBBPF_BPF_OBJECT__NEXT_MAP
+ CFLAGS += -DHAVE_LIBBPF_BPF_PROGRAM__SET_INSNS
+ CFLAGS += -DHAVE_LIBBPF_BTF__RAW_DATA
+ CFLAGS += -DHAVE_LIBBPF_BPF_MAP_CREATE
+
ifdef LIBBPF_DYNAMIC
ifeq ($(feature-libbpf), 1)
EXTLIBS += -lbpf
$(call detected,CONFIG_LIBBPF_DYNAMIC)
-
- $(call feature_check,libbpf-btf__load_from_kernel_by_id)
- ifeq ($(feature-libbpf-btf__load_from_kernel_by_id), 1)
- CFLAGS += -DHAVE_LIBBPF_BTF__LOAD_FROM_KERNEL_BY_ID
- endif
- $(call feature_check,libbpf-bpf_prog_load)
- ifeq ($(feature-libbpf-bpf_prog_load), 1)
- CFLAGS += -DHAVE_LIBBPF_BPF_PROG_LOAD
- endif
- $(call feature_check,libbpf-bpf_object__next_program)
- ifeq ($(feature-libbpf-bpf_object__next_program), 1)
- CFLAGS += -DHAVE_LIBBPF_BPF_OBJECT__NEXT_PROGRAM
- endif
- $(call feature_check,libbpf-bpf_object__next_map)
- ifeq ($(feature-libbpf-bpf_object__next_map), 1)
- CFLAGS += -DHAVE_LIBBPF_BPF_OBJECT__NEXT_MAP
- endif
- $(call feature_check,libbpf-bpf_program__set_insns)
- ifeq ($(feature-libbpf-bpf_program__set_insns), 1)
- CFLAGS += -DHAVE_LIBBPF_BPF_PROGRAM__SET_INSNS
- endif
- $(call feature_check,libbpf-btf__raw_data)
- ifeq ($(feature-libbpf-btf__raw_data), 1)
- CFLAGS += -DHAVE_LIBBPF_BTF__RAW_DATA
- endif
- $(call feature_check,libbpf-bpf_map_create)
- ifeq ($(feature-libbpf-bpf_map_create), 1)
- CFLAGS += -DHAVE_LIBBPF_BPF_MAP_CREATE
- endif
else
dummy := $(error Error: No libbpf devel library found, please install libbpf-devel);
endif
else
# Libbpf will be built as a static library from tools/lib/bpf.
LIBBPF_STATIC := 1
- CFLAGS += -DHAVE_LIBBPF_BTF__LOAD_FROM_KERNEL_BY_ID
- CFLAGS += -DHAVE_LIBBPF_BPF_PROG_LOAD
- CFLAGS += -DHAVE_LIBBPF_BPF_OBJECT__NEXT_PROGRAM
- CFLAGS += -DHAVE_LIBBPF_BPF_OBJECT__NEXT_MAP
- CFLAGS += -DHAVE_LIBBPF_BPF_PROGRAM__SET_INSNS
- CFLAGS += -DHAVE_LIBBPF_BTF__RAW_DATA
- CFLAGS += -DHAVE_LIBBPF_BPF_MAP_CREATE
endif
endif
--
2.39.0.314.g84b9a713c41-goog
next prev parent reply other threads:[~2023-01-09 20:35 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-09 20:34 [PATCH v1 0/3] Assume libbpf 1.0 in build Ian Rogers
2023-01-09 20:34 ` [PATCH v1 1/3] tools build: Pass libbpf feature only if libbpf 1.0+ Ian Rogers
2023-01-09 20:34 ` Ian Rogers [this message]
2023-01-09 20:34 ` [PATCH v1 3/3] perf bpf: Remove pre libbpf 1.0 conditional logic Ian Rogers
2023-01-10 12:34 ` [PATCH v1 0/3] Assume libbpf 1.0 in build Jiri Olsa
2023-01-10 13:36 ` Arnaldo Carvalho de Melo
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