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| author | Namhyung Kim <namhyung.kim@lge.com> | 2012-09-28 13:31:59 +0400 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2012-09-29 04:07:36 +0400 |
| commit | 29a0fc9b2b6084e7a8810481df62a0fa496d8957 (patch) | |
| tree | b14fcf9ba9c906ae969daa242057b391bd93ba81 /tools/perf/Makefile | |
| parent | e4898336a1b4d8a259663d15b12f359b6c2887a2 (diff) | |
| download | linux-29a0fc9b2b6084e7a8810481df62a0fa496d8957.tar.xz | |
perf tools: Convert to LIBELF_SUPPORT
For building perf without libelf, we can set NO_LIBELF=1 as a argument
of make. It then defines NO_LIBELF_SUPPORT macro for C code to do the
proper handling. However it usually used in a negative semantics -
e.g. #ifndef - so we saw double negations which can be misleading.
Convert it to a positive form to make it more readable.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1348824728-14025-4-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Makefile')
| -rw-r--r-- | tools/perf/Makefile | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/tools/perf/Makefile b/tools/perf/Makefile index 9cd49130f438..1df09175d8d4 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -503,8 +503,6 @@ ifneq ($(OUTPUT),) endif ifdef NO_LIBELF -BASIC_CFLAGS += -DNO_LIBELF_SUPPORT - EXTLIBS := $(filter-out -lelf,$(EXTLIBS)) # Remove ELF/DWARF dependent codes @@ -519,9 +517,10 @@ BUILTIN_OBJS := $(filter-out $(OUTPUT)builtin-probe.o,$(BUILTIN_OBJS)) LIB_OBJS += $(OUTPUT)util/symbol-minimal.o else # NO_LIBELF +BASIC_CFLAGS += -DLIBELF_SUPPORT -ifneq ($(call try-cc,$(SOURCE_ELF_MMAP),$(FLAGS_COMMON)),y) - BASIC_CFLAGS += -DLIBELF_NO_MMAP +ifeq ($(call try-cc,$(SOURCE_ELF_MMAP),$(FLAGS_COMMON)),y) + BASIC_CFLAGS += -DLIBELF_MMAP endif ifndef NO_DWARF |