diff options
Diffstat (limited to 'tools/perf/examples/bpf/augmented_raw_syscalls.c')
| -rw-r--r-- | tools/perf/examples/bpf/augmented_raw_syscalls.c | 18 |
1 files changed, 4 insertions, 14 deletions
diff --git a/tools/perf/examples/bpf/augmented_raw_syscalls.c b/tools/perf/examples/bpf/augmented_raw_syscalls.c index 53c233370fae..f9b2161e1ca4 100644 --- a/tools/perf/examples/bpf/augmented_raw_syscalls.c +++ b/tools/perf/examples/bpf/augmented_raw_syscalls.c @@ -18,23 +18,13 @@ #include <pid_filter.h> /* bpf-output associated map */ -struct bpf_map SEC("maps") __augmented_syscalls__ = { - .type = BPF_MAP_TYPE_PERF_EVENT_ARRAY, - .key_size = sizeof(int), - .value_size = sizeof(u32), - .max_entries = __NR_CPUS__, -}; +bpf_map(__augmented_syscalls__, PERF_EVENT_ARRAY, int, u32, __NR_CPUS__); struct syscall { bool enabled; }; -struct bpf_map SEC("maps") syscalls = { - .type = BPF_MAP_TYPE_ARRAY, - .key_size = sizeof(int), - .value_size = sizeof(struct syscall), - .max_entries = 512, -}; +bpf_map(syscalls, ARRAY, int, struct syscall, 512); struct syscall_enter_args { unsigned long long common_tp_fields; @@ -141,8 +131,8 @@ int sys_enter(struct syscall_enter_args *args) len = sizeof(augmented_args.args); } - perf_event_output(args, &__augmented_syscalls__, BPF_F_CURRENT_CPU, &augmented_args, len); - return 0; + /* If perf_event_output fails, return non-zero so that it gets recorded unaugmented */ + return perf_event_output(args, &__augmented_syscalls__, BPF_F_CURRENT_CPU, &augmented_args, len); } SEC("raw_syscalls:sys_exit") |