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perf tools: Support static linking with libdw

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The Fedora 22 version of libdw requires a couple of extra libraries to
link. With a dynamic link the dependencies are pulled in automatically,
but this doesn't work for static linking. Add the needed libraries
explicitely to the feature probe and the Makefile.

v2: Explicitly check for static linking and only add the dependencies
    when -static is set. This is to avoid regressions on Arnaldo's system.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/1439419717-20601-1-git-send-email-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Andi Kleen
2015-08-12 15:48:37 -07:00
committed by Arnaldo Carvalho de Melo
parent a897b5f039
commit 7aec51cbf0
2 changed files with 11 additions and 2 deletions
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7
tools/build/feature/Makefile
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@@ -70,8 +70,13 @@ test-libelf.bin:
test-glibc.bin:
$(BUILD)
DWARFLIBS := -ldw
ifeq ($(findstring -static,${LDFLAGS}),-static)
DWARFLIBS += -lelf -lebl -lz -llzma -lbz2
endif
test-dwarf.bin:
$(BUILD) -ldw
$(BUILD) $(DWARFLIBS)
test-libelf-mmap.bin:
$(BUILD) -lelf