Commit-ID: 7aec51cbf0646cc15d719b08caea931576dc7f2a
Gitweb: http://git.kernel.org/tip/7aec51cbf0646cc15d719b08caea931576dc7f2a
Author: Andi Kleen <[email protected]>
AuthorDate: Wed, 12 Aug 2015 15:48:37 -0700
Committer: Arnaldo Carvalho de Melo <[email protected]>
CommitDate: Thu, 13 Aug 2015 14:49:11 -0300
perf tools: Support static linking with libdw
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 <[email protected]>
Cc: Jiri Olsa <[email protected]>
Link:
http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
---
tools/build/feature/Makefile | 7 ++++++-
tools/perf/config/Makefile | 6 +++++-
2 files changed, 11 insertions(+), 2 deletions(-)
diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
index 1c0d69f..74ca420 100644
--- a/tools/build/feature/Makefile
+++ b/tools/build/feature/Makefile
@@ -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
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 823195a..827557f 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -297,7 +297,11 @@ ifndef NO_LIBELF
else
CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
LDFLAGS += $(LIBDW_LDFLAGS)
- EXTLIBS += -ldw
+ DWARFLIBS := -ldw
+ ifeq ($(findstring -static,${LDFLAGS}),-static)
+ DWARFLIBS += -lelf -lebl -lz -llzma -lbz2
+ endif
+ EXTLIBS += ${DWARFLIBS}
$(call detected,CONFIG_DWARF)
endif # PERF_HAVE_DWARF_REGS
endif # NO_DWARF
--
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