On Thu, May 19, 2016 at 11:47:38AM +0000, He Kuang wrote: SNIP
> #endif /* ARCH_PERF_COMMON_H */ > diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile > index 1e46277..a86b864 100644 > --- a/tools/perf/config/Makefile > +++ b/tools/perf/config/Makefile > @@ -345,6 +345,12 @@ ifeq ($(ARCH),powerpc) > endif > > ifndef NO_LIBUNWIND > + ifeq ($(feature-libunwind-x86), 1) > + LIBUNWIND_LIBS += -lunwind-x86 > + $(call detected,CONFIG_LIBUNWIND_X86) > + CFLAGS += -DHAVE_LIBUNWIND_X86_SUPPORT > + endif > + how does one install that lirary? thanks, jirka
