[PATCH 08/10] perf tools: Limit unwind support to x86 archs

[Arnaldo Carvalho de Melo]

From: Jiri Olsa <jolsa@xxxxxxxxxx>

There's DWARF unwind support only for x86 archs, so limit the unwind.o
object to them only.

Without this building for other archs (e.g. cross compiling for ARM) is
broken.

Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Signed-off-by: Dirk Behme <dirk.behme@xxxxxxxxxxxx>
Link: http://lkml.kernel.org/n/tip-viqtvd6hppqgt68zz4wlqm20@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/Makefile | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 1c8df6f..b90528d 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -581,6 +581,11 @@ else
 endif # SOURCE_LIBELF
 endif # NO_LIBELF
 
+# There's only x86 (both 32 and 64) support for CFI unwind so far
+ifneq ($(ARCH),x86)
+	NO_LIBUNWIND := 1
+endif
+
 ifndef NO_LIBUNWIND
 # for linking with debug library, run like:
 # make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
-- 
1.8.1.1.361.gec3ae6e

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