Commit-ID: 08d5204adbf845fadd936aae7639fc05d4eddee1 Gitweb: http://git.kernel.org/tip/08d5204adbf845fadd936aae7639fc05d4eddee1 Author: Mathieu Poirier <mathieu.poir...@linaro.org> AuthorDate: Fri, 16 Sep 2016 09:49:58 -0600 Committer: Arnaldo Carvalho de Melo <a...@redhat.com> CommitDate: Thu, 22 Sep 2016 12:19:30 -0300
perf tools: Confine __get_cpuid() to x86 architecture The __get_cpuid() test is only valid when compiling for x86. When compiling for other architectures like ARM/ARM64 the test fails event if the functionality is not required. This patch isolate the build-in feature check to x86 platform, allowing the compilation and usage of PMUs that use the AUXTRACE infrastructure on other architectures (i.e ARM CoreSight). Signed-off-by: Mathieu Poirier <mathieu.poir...@linaro.org> Acked-by: Adrian Hunter <adrian.hun...@intel.com> Acked-by: Jiri Olsa <jo...@kernel.org> Cc: Alexander Shishkin <alexander.shish...@linux.intel.com> Cc: Peter Zijlstra <pet...@infradead.org> Cc: linux-arm-ker...@lists.infradead.org Link: http://lkml.kernel.org/r/1474041004-13956-2-git-send-email-mathieu.poir...@linaro.org Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/perf/Makefile.config | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config index 24803c5..72edf83 100644 --- a/tools/perf/Makefile.config +++ b/tools/perf/Makefile.config @@ -746,10 +746,13 @@ ifdef LIBBABELTRACE endif ifndef NO_AUXTRACE - ifeq ($(feature-get_cpuid), 0) - msg := $(warning Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc); - NO_AUXTRACE := 1 - else + ifeq ($(ARCH),x86) + ifeq ($(feature-get_cpuid), 0) + msg := $(warning Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc); + NO_AUXTRACE := 1 + endif + endif + ifndef NO_AUXTRACE $(call detected,CONFIG_AUXTRACE) CFLAGS += -DHAVE_AUXTRACE_SUPPORT endif
