From fcc328032e7382bf413517ee4dddf1eca7970fe4 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Fri, 26 Oct 2012 17:55:52 +0900 Subject: [PATCH] perf tools: Fix LIBELF_MMAP checking Currently checking mmap support in libelf failed due to wrong flags. CHK libelf CHK libdw CHK libunwind CHK -DLIBELF_MMAP /tmp/ccYJwdR0.o: In function `main': :(.text+0x18): undefined reference to `elf_begin' collect2: error: ld returned 1 exit status This cannot happen since we checked the elf_begin() when checking libelf and it succeeded. Fix it by using a same flag with libelf checking. Signed-off-by: Namhyung Kim Cc: Borislav Petkov Cc: Ingo Molnar Cc: Jiri Olsa Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1351241752-2919-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/Makefile | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/perf/Makefile b/tools/perf/Makefile index 2d0c09ab58b8..629fc6a4b0df 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -541,7 +541,8 @@ LIB_OBJS += $(OUTPUT)util/symbol-minimal.o else # NO_LIBELF BASIC_CFLAGS += -DLIBELF_SUPPORT -ifeq ($(call try-cc,$(SOURCE_ELF_MMAP),$(FLAGS_COMMON),-DLIBELF_MMAP),y) +FLAGS_LIBELF=$(ALL_CFLAGS) $(ALL_LDFLAGS) $(EXTLIBS) +ifeq ($(call try-cc,$(SOURCE_ELF_MMAP),$(FLAGS_LIBELF),-DLIBELF_MMAP),y) BASIC_CFLAGS += -DLIBELF_MMAP endif -- 2.20.1