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| author |   Sandipan Das <sandipan@linux.ibm.com> | 2020-07-27 09:30:39 +0530 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2020-07-29 21:02:10 +1000 |
| commit | 743f3544fffb9662aaf550c8358a8c1b6fcae707 (patch) | |
| tree | 76535f6e67989edc9af765470a0072a10a7a9f0f /tools/testing/selftests/powerpc/include | |
| parent | selftests/powerpc: Add helper to exit on failure (diff) | |
| download | linux-dev-743f3544fffb9662aaf550c8358a8c1b6fcae707.tar.xz linux-dev-743f3544fffb9662aaf550c8358a8c1b6fcae707.zip | |
selftests/powerpc: Add wrapper for gettid
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.leroy@csgroup.eu>
Suggested-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/8ca3b0eeda989707815d1cf337cc33f090408965.1595821792.git.sandipan@linux.ibm.com
Diffstat (limited to 'tools/testing/selftests/powerpc/include')
| -rw-r--r-- | tools/testing/selftests/powerpc/include/utils.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/tools/testing/selftests/powerpc/include/utils.h b/tools/testing/selftests/powerpc/include/utils.h index 69d16875802d..71d2924f5b8b 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; |