diff options
| -rw-r--r-- | tools/build/Makefile.feature | 6 | ||||
| -rw-r--r-- | tools/build/feature/Makefile | 6 | ||||
| -rw-r--r-- | tools/build/feature/test-all.c | 5 | ||||
| -rw-r--r-- | tools/build/feature/test-get_cpuid.c | 7 | ||||
| -rw-r--r-- | tools/perf/config/Makefile | 9 |
5 files changed, 28 insertions, 5 deletions
diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature index 970242098a7c..c8fe6d177119 100644 --- a/tools/build/Makefile.feature +++ b/tools/build/Makefile.feature @@ -52,7 +52,8 @@ FEATURE_TESTS ?= \ timerfd \ libdw-dwarf-unwind \ zlib \ - lzma + lzma \ + get_cpuid FEATURE_DISPLAY ?= \ dwarf \ @@ -69,7 +70,8 @@ FEATURE_DISPLAY ?= \ libunwind \ libdw-dwarf-unwind \ zlib \ - lzma + lzma \ + get_cpuid # Set FEATURE_CHECK_(C|LD)FLAGS-all for all FEATURE_TESTS features. # If in the future we need per-feature checks/flags for features not diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile index e13a42bd0274..e43a2971bf56 100644 --- a/tools/build/feature/Makefile +++ b/tools/build/feature/Makefile @@ -35,7 +35,8 @@ FILES= \ test-compile-x32.bin \ test-zlib.bin \ test-lzma.bin \ - test-bpf.bin + test-bpf.bin \ + test-get_cpuid.bin CC := $(CROSS_COMPILE)gcc -MD PKG_CONFIG := $(CROSS_COMPILE)pkg-config @@ -166,6 +167,9 @@ test-zlib.bin: test-lzma.bin: $(BUILD) -llzma +test-get_cpuid.bin: + $(BUILD) + test-bpf.bin: $(BUILD) diff --git a/tools/build/feature/test-all.c b/tools/build/feature/test-all.c index 7a8cdbad3e1b..33cf6f20bd4e 100644 --- a/tools/build/feature/test-all.c +++ b/tools/build/feature/test-all.c @@ -121,6 +121,10 @@ # include "test-lzma.c" #undef main +#define main main_test_get_cpuid +# include "test-get_cpuid.c" +#undef main + int main(int argc, char *argv[]) { main_test_libpython(); @@ -148,6 +152,7 @@ int main(int argc, char *argv[]) main_test_zlib(); main_test_pthread_attr_setaffinity_np(); main_test_lzma(); + main_test_get_cpuid(); return 0; } diff --git a/tools/build/feature/test-get_cpuid.c b/tools/build/feature/test-get_cpuid.c new file mode 100644 index 000000000000..d7a2c407130d --- /dev/null +++ b/tools/build/feature/test-get_cpuid.c @@ -0,0 +1,7 @@ +#include <cpuid.h> + +int main(void) +{ + unsigned int eax = 0, ebx = 0, ecx = 0, edx = 0; + return __get_cpuid(0x15, &eax, &ebx, &ecx, &edx); +} diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile index 053e65b04dc3..38a08539f4bf 100644 --- a/tools/perf/config/Makefile +++ b/tools/perf/config/Makefile @@ -626,8 +626,13 @@ ifdef LIBBABELTRACE endif ifndef NO_AUXTRACE - $(call detected,CONFIG_AUXTRACE) - CFLAGS += -DHAVE_AUXTRACE_SUPPORT + ifeq ($(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 + $(call detected,CONFIG_AUXTRACE) + CFLAGS += -DHAVE_AUXTRACE_SUPPORT + endif endif # Among the variables below, these: |