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| author | Jason Xing <kernelxing@tencent.com> | 2024-10-29 15:46:27 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-02-21 14:01:46 +0100 |
| commit | 449dd20852d8563d5e9c32a9228a106d8399570a (patch) | |
| tree | 00737f5978e0496ac43387067e19dc7ff018c8c9 /tools | |
| parent | 728dd20c8df74e09a9f34872b26d962a0f31d529 (diff) | |
| download | linux-449dd20852d8563d5e9c32a9228a106d8399570a.tar.gz linux-449dd20852d8563d5e9c32a9228a106d8399570a.tar.bz2 linux-449dd20852d8563d5e9c32a9228a106d8399570a.zip | |
bpf: handle implicit declaration of function gettid in bpf_iter.c
commit 42602e3a06f8e5b9a059344e305c9bee2dcc87c8 upstream.
As we can see from the title, when I compiled the selftests/bpf, I
saw the error:
implicit declaration of function ‘gettid’ ; did you mean ‘getgid’? [-Werror=implicit-function-declaration]
skel->bss->tid = gettid();
^~~~~~
getgid
Directly call the syscall solves this issue.
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Reviewed-by: Alan Maguire <alan.maguire@oracle.com>
Tested-by: Alan Maguire <alan.maguire@oracle.com>
Link: https://lore.kernel.org/r/20241029074627.80289-1-kerneljasonxing@gmail.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Cc: Alan Maguire <alan.maguire@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/bpf_iter.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_iter.c b/tools/testing/selftests/bpf/prog_tests/bpf_iter.c index f0a3a9c18e9e..9006549a1294 100644 --- a/tools/testing/selftests/bpf/prog_tests/bpf_iter.c +++ b/tools/testing/selftests/bpf/prog_tests/bpf_iter.c @@ -226,7 +226,7 @@ static void test_task_common_nocheck(struct bpf_iter_attach_opts *opts, ASSERT_OK(pthread_create(&thread_id, NULL, &do_nothing_wait, NULL), "pthread_create"); - skel->bss->tid = gettid(); + skel->bss->tid = syscall(SYS_gettid); do_dummy_read_opts(skel->progs.dump_task, opts); @@ -255,10 +255,10 @@ static void *run_test_task_tid(void *arg) union bpf_iter_link_info linfo; int num_unknown_tid, num_known_tid; - ASSERT_NEQ(getpid(), gettid(), "check_new_thread_id"); + ASSERT_NEQ(getpid(), syscall(SYS_gettid), "check_new_thread_id"); memset(&linfo, 0, sizeof(linfo)); - linfo.task.tid = gettid(); + linfo.task.tid = syscall(SYS_gettid); opts.link_info = &linfo; opts.link_info_len = sizeof(linfo); test_task_common(&opts, 0, 1); |