diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 90eaff8c0f6e..8fb032caeaf5 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -1049,6 +1049,8 @@ static const struct syscall_fmt syscall_fmts[] = { .arg = { [3] = { .scnprintf = SCA_MREMAP_FLAGS, /* flags */ }, }, }, { .name = "name_to_handle_at", .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, }, }, + { .name = "nanosleep", + .arg = { [0] = { .scnprintf = SCA_TIMESPEC, /* req */ }, }, }, { .name = "newfstatat", .arg = { [0] = { .scnprintf = SCA_FDAT, /* dfd */ }, }, }, { .name = "open", diff --git a/tools/perf/util/bpf_skel/augmented_raw_syscalls.bpf.c b/tools/perf/util/bpf_skel/augmented_raw_syscalls.bpf.c index 2872f9bc0785..0acbd74e8c76 100644 --- a/tools/perf/util/bpf_skel/augmented_raw_syscalls.bpf.c +++ b/tools/perf/util/bpf_skel/augmented_raw_syscalls.bpf.c @@ -341,6 +341,27 @@ failure: return 1; /* Failure: don't filter */ } +SEC("tp/syscalls/sys_enter_nanosleep") +int sys_enter_nanosleep(struct syscall_enter_args *args) +{ + struct augmented_args_payload *augmented_args = augmented_args_payload(); + const void *req_arg = (const void *)args->args[0]; + unsigned int len = sizeof(augmented_args->args); + __u32 size = sizeof(struct timespec64); + + if (augmented_args == NULL) + goto failure; + + if (size > sizeof(augmented_args->__data)) + goto failure; + + bpf_probe_read_user(&augmented_args->__data, size, req_arg); + + return augmented__output(args, augmented_args, len + size); +failure: + return 1; /* Failure: don't filter */ +} + static pid_t getpid(void) { return bpf_get_current_pid_tgid();