diff options
| author | Ilya Leoshkevich <iii@linux.ibm.com> | 2022-02-09 05:17:42 +0300 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2022-02-09 08:37:41 +0300 |
| commit | 9e45a377f29b5a66f75c0c3a0d84ad5c583290e8 (patch) | |
| tree | 7dbdf5b4157881345223d646f26e0444298e0d21 /tools/testing/selftests/bpf/progs | |
| parent | cf0b5b2769233b026cfa41206109dea77b0d17e3 (diff) | |
| download | linux-9e45a377f29b5a66f75c0c3a0d84ad5c583290e8.tar.xz | |
selftests/bpf: Skip test_bpf_syscall_macro's syscall_arg1 on arm64 and s390
These architectures can provide access to the first syscall argument
only through PT_REGS_PARM1_CORE_SYSCALL().
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20220209021745.2215452-8-iii@linux.ibm.com
Diffstat (limited to 'tools/testing/selftests/bpf/progs')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/bpf_syscall_macro.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/testing/selftests/bpf/progs/bpf_syscall_macro.c b/tools/testing/selftests/bpf/progs/bpf_syscall_macro.c index e7c622cb6a39..496e54d0ac22 100644 --- a/tools/testing/selftests/bpf/progs/bpf_syscall_macro.c +++ b/tools/testing/selftests/bpf/progs/bpf_syscall_macro.c @@ -28,7 +28,7 @@ int BPF_KPROBE(handle_sys_prctl) { struct pt_regs *real_regs; pid_t pid = bpf_get_current_pid_tgid() >> 32; - unsigned long tmp; + unsigned long tmp = 0; if (pid != filter_pid) return 0; @@ -37,7 +37,9 @@ int BPF_KPROBE(handle_sys_prctl) /* test for PT_REGS_PARM */ +#if !defined(bpf_target_arm64) && !defined(bpf_target_s390) bpf_probe_read_kernel(&tmp, sizeof(tmp), &PT_REGS_PARM1_SYSCALL(real_regs)); +#endif arg1 = tmp; bpf_probe_read_kernel(&arg2, sizeof(arg2), &PT_REGS_PARM2_SYSCALL(real_regs)); bpf_probe_read_kernel(&arg3, sizeof(arg3), &PT_REGS_PARM3_SYSCALL(real_regs)); |