On Thu, May 19, 2016 at 06:46:09PM +0200, Jiri Olsa wrote: > 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 > > + $(call detected,CONFIG_LIBUNWIND_X86) > > + CFLAGS += -DHAVE_LIBUNWIND_X86_SUPPORT > > + endif > > + > > how does one install that lirary?
had to uninstall x86_64.. [jolsa@krava perf]$ rpm -qa | grep libunw libunwind-devel-1.1-10.fc22.i686 libunwind-1.1-10.fc22.i686 libunwind-1.1-10.fc22.x86_64 however it's still off: [jolsa@krava perf]$ make VF=1 BUILD: Doing 'make -j4' parallel build Auto-detecting system features: SNIP ... libunwind: [ OFF ] SNIP ... libunwind-x86: [ OFF ] ... libunwind-x86_64: [ OFF ] ... libunwind-arm: [ OFF ] ... libunwind-aarch64: [ OFF ] ... pthread-attr-setaffinity-np: [ on ] ... stackprotector-all: [ on ] ... timerfd: [ on ] thanks, jirka
