From mboxrd@z Thu Jan 1 00:00:00 1970 From: acme@kernel.org (Arnaldo Carvalho de Melo) Date: Thu, 22 Sep 2016 18:12:47 -0300 Subject: [PATCH 03/15] perf tools: Confine __get_cpuid() to x86 architecture In-Reply-To: <1474578779-14095-1-git-send-email-acme@kernel.org> References: <1474578779-14095-1-git-send-email-acme@kernel.org> Message-ID: <1474578779-14095-4-git-send-email-acme@kernel.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Mathieu Poirier 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 Acked-by: Adrian Hunter Acked-by: Jiri Olsa Cc: Alexander Shishkin Cc: Peter Zijlstra Cc: linux-arm-kernel at lists.infradead.org Link: http://lkml.kernel.org/r/1474041004-13956-2-git-send-email-mathieu.poirier at linaro.org Signed-off-by: Arnaldo Carvalho de Melo --- 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 24803c58049a..72edf83d76b7 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 -- 2.7.4