| From | Arnaldo Carvalho de Melo <> | Subject | [PATCH 21/77] perf bpf: Add syscall_exit() helper | Date | Wed, 5 Sep 2018 19:03:44 -0300 |
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From: Arnaldo Carvalho de Melo <acme@redhat.com>
So that we can hook to the syscalls:sys_exit_SYSCALL tracepoints in addition to the syscalls:sys_enter_SYSCALL we hook using the syscall_enter() helper.
Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-6qh8aph1jklyvdu7w89c0izc@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> --- tools/perf/include/bpf/bpf.h | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/tools/perf/include/bpf/bpf.h b/tools/perf/include/bpf/bpf.h index 47897d65e799..52b6d87fe822 100644 --- a/tools/perf/include/bpf/bpf.h +++ b/tools/perf/include/bpf/bpf.h @@ -26,6 +26,9 @@ struct bpf_map { #define syscall_enter(name) \ SEC("syscalls:sys_enter_" #name) syscall_enter_ ## name +#define syscall_exit(name) \ + SEC("syscalls:sys_exit_" #name) syscall_exit_ ## name + #define license(name) \ char _license[] SEC("license") = #name; \ int _version SEC("version") = LINUX_VERSION_CODE; -- 2.14.4
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