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    Subject[PATCH 11/24] perf unwind: Use LIBUNWIND_DIR for remote libunwind feature check
    Date
    From: He Kuang <hekuang@huawei.com>

    Pass LIBUNWIND_DIR to feature check flags for remote libunwind
    tests. So perf can be able to detect remote libunwind libraries from
    arbitrary directory.

    Signed-off-by: He Kuang <hekuang@huawei.com>
    Acked-by: Jiri Olsa <jolsa@kernel.org>
    Cc: Adrian Hunter <adrian.hunter@intel.com>
    Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
    Cc: Andi Kleen <ak@linux.intel.com>
    Cc: David Ahern <dsahern@gmail.com>
    Cc: Ekaterina Tumanova <tumanova@linux.vnet.ibm.com>
    Cc: Josh Poimboeuf <jpoimboe@redhat.com>
    Cc: Kan Liang <kan.liang@intel.com>
    Cc: Masami Hiramatsu <mhiramat@kernel.org>
    Cc: Namhyung Kim <namhyung@kernel.org>
    Cc: Pekka Enberg <penberg@kernel.org>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Stephane Eranian <eranian@google.com>
    Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
    Cc: Wang Nan <wangnan0@huawei.com>
    Link: http://lkml.kernel.org/r/1464924803-22214-2-git-send-email-hekuang@huawei.com
    Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
    ---
    tools/perf/config/Makefile | 9 +++++++++
    1 file changed, 9 insertions(+)

    diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
    index 1e46277286c2..6f9f566a757c 100644
    --- a/tools/perf/config/Makefile
    +++ b/tools/perf/config/Makefile
    @@ -67,9 +67,18 @@ endif
    #
    # make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
    #
    +
    +libunwind_arch_set_flags = $(eval $(libunwind_arch_set_flags_code))
    +define libunwind_arch_set_flags_code
    + FEATURE_CHECK_CFLAGS-libunwind-$(1) = -I$(LIBUNWIND_DIR)/include
    + FEATURE_CHECK_LDFLAGS-libunwind-$(1) = -L$(LIBUNWIND_DIR)/lib
    +endef
    +
    ifdef LIBUNWIND_DIR
    LIBUNWIND_CFLAGS = -I$(LIBUNWIND_DIR)/include
    LIBUNWIND_LDFLAGS = -L$(LIBUNWIND_DIR)/lib
    + LIBUNWIND_ARCHS = x86 x86_64 arm aarch64 debug-frame-arm debug-frame-aarch64
    + $(foreach libunwind_arch,$(LIBUNWIND_ARCHS),$(call libunwind_arch_set_flags,$(libunwind_arch)))
    endif
    LIBUNWIND_LDFLAGS += $(LIBUNWIND_LIBS)

    --
    2.5.5
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