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| author | Ingo Molnar <mingo@kernel.org> | 2013-10-07 08:35:39 (GMT) |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2013-10-09 06:48:36 (GMT) |
| commit | 8295d4e27262dc49177e70dcc8ba34fa26343cf2 (patch) | |
| tree | 9d8b2898b6fcd24f0e4c61ac1b82861d3092048b | |
| parent | e12762cfd9b4ec8f9bb5863eea403253175df9f1 (diff) | |
| download | linux-fsl-qoriq-8295d4e27262dc49177e70dcc8ba34fa26343cf2.tar.xz | |
tools/perf/build: Split out feature check: 'dwarf'
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-dsx0fn9mjwfprizboANvtuup@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | tools/perf/config/Makefile | 4 | ||||
| -rw-r--r-- | tools/perf/config/feature-checks/Makefile | 4 | ||||
| -rw-r--r-- | tools/perf/config/feature-checks/test-dwarf.c | 9 |
3 files changed, 15 insertions, 2 deletions
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile index 8cd0fd8..89630b8 100644 --- a/tools/perf/config/Makefile +++ b/tools/perf/config/Makefile @@ -110,6 +110,7 @@ FEATURE_TESTS = \ bionic \ libelf \ glibc \ + dwarf \ libnuma $(foreach test,$(FEATURE_TESTS),$(call feature_check,$(test),$(test))) @@ -190,8 +191,7 @@ else LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib endif - FLAGS_DWARF=$(CFLAGS) $(LIBDW_CFLAGS) -ldw -lz -lelf $(LIBDW_LDFLAGS) $(LDFLAGS) $(EXTLIBS) - ifneq ($(call try-cc,$(SOURCE_DWARF),$(FLAGS_DWARF),libdw),y) + ifneq ($(feature-dwarf), 1) msg := $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev); NO_DWARF := 1 endif # Dwarf support diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile index c0569c7..566a71d 100644 --- a/tools/perf/config/feature-checks/Makefile +++ b/tools/perf/config/feature-checks/Makefile @@ -8,6 +8,7 @@ FILES= \ test-bionic \ test-libelf \ test-glibc \ + test-dwarf \ test-libnuma CC := $(CC) -MD @@ -42,6 +43,9 @@ test-libelf: test-glibc: $(BUILD) +test-dwarf: + $(BUILD) -ldw + test-libnuma: $(BUILD) -lnuma diff --git a/tools/perf/config/feature-checks/test-dwarf.c b/tools/perf/config/feature-checks/test-dwarf.c new file mode 100644 index 0000000..783dfcd --- /dev/null +++ b/tools/perf/config/feature-checks/test-dwarf.c @@ -0,0 +1,9 @@ +#include <dwarf.h> +#include <elfutils/libdw.h> +#include <elfutils/version.h> + +int main(void) +{ + Dwarf *dbg = dwarf_begin(0, DWARF_C_READ); + return (long)dbg; +} |