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| author | Hou Tao <houtao1@huawei.com> | 2022-10-11 10:12:49 +0300 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2022-10-13 22:09:19 +0300 |
| commit | 62c69e89e81bfbdb9a87ae3e0599dcc6aacf786b (patch) | |
| tree | f3fd7ad771f817ed752b19f95481a4b903d9d694 /tools/testing/selftests/bpf/task_local_storage_helpers.h | |
| parent | e94e0a2d3730cd718a3a67682b038b05fa40d2a7 (diff) | |
| download | linux-62c69e89e81bfbdb9a87ae3e0599dcc6aacf786b.tar.xz | |
selftests/bpf: Use sys_pidfd_open() helper when possible
SYS_pidfd_open may be undefined for old glibc, so using sys_pidfd_open()
helper defined in task_local_storage_helpers.h instead to fix potential
build failure.
And according to commit 7615d9e1780e ("arch: wire-up pidfd_open()"), the
syscall number of pidfd_open is always 434 except for alpha architure,
so update the definition of __NR_pidfd_open accordingly.
Signed-off-by: Hou Tao <houtao1@huawei.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20221011071249.3471760-1-houtao@huaweicloud.com
Diffstat (limited to 'tools/testing/selftests/bpf/task_local_storage_helpers.h')
| -rw-r--r-- | tools/testing/selftests/bpf/task_local_storage_helpers.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/task_local_storage_helpers.h b/tools/testing/selftests/bpf/task_local_storage_helpers.h index 711d5abb7d51..281f86132766 100644 --- a/tools/testing/selftests/bpf/task_local_storage_helpers.h +++ b/tools/testing/selftests/bpf/task_local_storage_helpers.h @@ -7,8 +7,12 @@ #include <sys/types.h> #ifndef __NR_pidfd_open +#ifdef __alpha__ +#define __NR_pidfd_open 544 +#else #define __NR_pidfd_open 434 #endif +#endif static inline int sys_pidfd_open(pid_t pid, unsigned int flags) { |