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    Subject[tip:perf/core] perf tools: Build with frame pointer
    Commit-ID:  6b01f2c4f6188da50d8fe094e369a9c0390424ab
    Gitweb: http://git.kernel.org/tip/6b01f2c4f6188da50d8fe094e369a9c0390424ab
    Author: Frederic Weisbecker <fweisbec@gmail.com>
    AuthorDate: Thu, 6 Jan 2011 15:51:53 +0100
    Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
    CommitDate: Thu, 6 Jan 2011 18:04:54 -0200

    perf tools: Build with frame pointer

    It seems that some gcc versions build by default with frame pointers
    and some others omit them.

    Just build the tools with frame pointers as the callchains can be an
    important part of the perf workflow.

    Cc: Ingo Molnar <mingo@elte.hu>
    Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
    Cc: Stephane Eranian <eranian@google.com>
    LKML-Reference: <1294325513-14276-3-git-send-email-fweisbec@gmail.com>
    Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
    Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
    ---
    tools/perf/Makefile | 2 +-
    1 files changed, 1 insertions(+), 1 deletions(-)

    diff --git a/tools/perf/Makefile b/tools/perf/Makefile
    index 1b9b13e..2b5387d 100644
    --- a/tools/perf/Makefile
    +++ b/tools/perf/Makefile
    @@ -227,7 +227,7 @@ ifndef PERF_DEBUG
    CFLAGS_OPTIMIZE = -O6
    endif

    -CFLAGS = -ggdb3 -Wall -Wextra -std=gnu99 -Werror $(CFLAGS_OPTIMIZE) -D_FORTIFY_SOURCE=2 $(EXTRA_WARNINGS) $(EXTRA_CFLAGS)
    +CFLAGS = -fno-omit-frame-pointer -ggdb3 -Wall -Wextra -std=gnu99 -Werror $(CFLAGS_OPTIMIZE) -D_FORTIFY_SOURCE=2 $(EXTRA_WARNINGS) $(EXTRA_CFLAGS)
    EXTLIBS = -lpthread -lrt -lelf -lm
    ALL_CFLAGS = $(CFLAGS) -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64
    ALL_LDFLAGS = $(LDFLAGS)

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