From: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> commit 25ab5abf5b141d7fd13eed506c7458aa04749c29 upstream. As 'perf bench futex wake-parallel" will use this, which is not available in older systems such as versions of the android NDK used in my container build tests (r12b and r15c at the moment). Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx> Cc: David Ahern <dsahern@xxxxxxxxx> Cc: Davidlohr Bueso <dave@xxxxxxxxxxxx> Cc: James Yang <james.yang@xxxxxxx Cc: Jiri Olsa <jolsa@xxxxxxxxxx> Cc: Kim Phillips <kim.phillips@xxxxxxx> Cc: Namhyung Kim <namhyung@xxxxxxxxxx> Cc: Wang Nan <wangnan0@xxxxxxxxxx> Link: https://lkml.kernel.org/n/tip-1i7iv54in4wj08lwo55b0pzv@xxxxxxxxxxxxxx Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> Cc: Guenter Roeck <linux@xxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- tools/build/Makefile.feature | 1 + tools/build/feature/Makefile | 4 ++++ tools/build/feature/test-all.c | 5 +++++ tools/build/feature/test-pthread-barrier.c | 12 ++++++++++++ tools/perf/Makefile.config | 4 ++++ 5 files changed, 26 insertions(+) create mode 100644 tools/build/feature/test-pthread-barrier.c --- a/tools/build/Makefile.feature +++ b/tools/build/Makefile.feature @@ -59,6 +59,7 @@ FEATURE_TESTS_BASIC := libunwind-arm \ libunwind-aarch64 \ pthread-attr-setaffinity-np \ + pthread-barrier \ stackprotector-all \ timerfd \ libdw-dwarf-unwind \ --- a/tools/build/feature/Makefile +++ b/tools/build/feature/Makefile @@ -39,6 +39,7 @@ FILES= test-libunwind-debug-frame-arm.bin \ test-libunwind-debug-frame-aarch64.bin \ test-pthread-attr-setaffinity-np.bin \ + test-pthread-barrier.bin \ test-stackprotector-all.bin \ test-timerfd.bin \ test-libdw-dwarf-unwind.bin \ @@ -80,6 +81,9 @@ $(OUTPUT)test-hello.bin: $(OUTPUT)test-pthread-attr-setaffinity-np.bin: $(BUILD) -D_GNU_SOURCE -lpthread +$(OUTPUT)test-pthread-barrier.bin: + $(BUILD) -lpthread + $(OUTPUT)test-stackprotector-all.bin: $(BUILD) -fstack-protector-all --- a/tools/build/feature/test-all.c +++ b/tools/build/feature/test-all.c @@ -130,6 +130,10 @@ # include "test-pthread-attr-setaffinity-np.c" #undef main +#define main main_test_pthread_barrier +# include "test-pthread-barrier.c" +#undef main + #define main main_test_sched_getcpu # include "test-sched_getcpu.c" #undef main @@ -202,6 +206,7 @@ int main(int argc, char *argv[]) main_test_sync_compare_and_swap(argc, argv); main_test_zlib(); main_test_pthread_attr_setaffinity_np(); + main_test_pthread_barrier(); main_test_lzma(); main_test_get_cpuid(); main_test_bpf(); --- /dev/null +++ b/tools/build/feature/test-pthread-barrier.c @@ -0,0 +1,12 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <stdint.h> +#include <pthread.h> + +int main(void) +{ + pthread_barrier_t barrier; + + pthread_barrier_init(&barrier, NULL, 1); + pthread_barrier_wait(&barrier); + return pthread_barrier_destroy(&barrier); +} --- a/tools/perf/Makefile.config +++ b/tools/perf/Makefile.config @@ -272,6 +272,10 @@ ifeq ($(feature-pthread-attr-setaffinity CFLAGS += -DHAVE_PTHREAD_ATTR_SETAFFINITY_NP endif +ifeq ($(feature-pthread-barrier), 1) + CFLAGS += -DHAVE_PTHREAD_BARRIER +endif + ifndef NO_BIONIC $(call feature_check,bionic) ifeq ($(feature-bionic), 1)
