The gettid() syscall wrapper was first introduced in glibc 2.30. This adds a wrapper for use in distros running older versions.
Suggested-by: Christophe Leroy <christophe.le...@csgroup.eu> Suggested-by: Michael Ellerman <m...@ellerman.id.au> Signed-off-by: Sandipan Das <sandi...@linux.ibm.com> --- tools/testing/selftests/powerpc/include/utils.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/tools/testing/selftests/powerpc/include/utils.h b/tools/testing/selftests/powerpc/include/utils.h index 69d16875802da..71d2924f5b8b3 100644 --- a/tools/testing/selftests/powerpc/include/utils.h +++ b/tools/testing/selftests/powerpc/include/utils.h @@ -42,6 +42,16 @@ int perf_event_enable(int fd); int perf_event_disable(int fd); int perf_event_reset(int fd); +#if !defined(__GLIBC_PREREQ) || !__GLIBC_PREREQ(2, 30) +#include <unistd.h> +#include <sys/syscall.h> + +static inline pid_t gettid(void) +{ + return syscall(SYS_gettid); +} +#endif + static inline bool have_hwcap(unsigned long ftr) { return ((unsigned long)get_auxv_entry(AT_HWCAP) & ftr) == ftr; -- 2.25.1