GPL 49 tools/perf/examples/bpf/5sec.c license(GPL); GPL 294 tools/perf/examples/bpf/augmented_raw_syscalls.c license(GPL); GPL 169 tools/perf/examples/bpf/augmented_syscalls.c license(GPL); GPL 3 tools/perf/examples/bpf/empty.c license(GPL); GPL 76 tools/perf/examples/bpf/etcsnoop.c license(GPL); GPL 9 tools/perf/examples/bpf/hello.c license(GPL); GPL 33 tools/perf/examples/bpf/sys_enter_openat.c license(GPL);