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| author | Tom Zanussi <tzanussi@gmail.com> | 2009-03-31 07:49:16 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-04-14 00:00:51 +0200 |
| commit | e45f2e2bd298e1ff687448e5fd15a3588b5807ec (patch) | |
| tree | 353f132d53ecb3e991cf59c3d43a7664cb87b743 /kernel/trace/trace_export.c | |
| parent | tracing/filters: add run-time field descriptions to TRACE_EVENT_FORMAT events (diff) | |
| download | linux-e45f2e2bd298e1ff687448e5fd15a3588b5807ec.tar.xz linux-e45f2e2bd298e1ff687448e5fd15a3588b5807ec.zip | |
tracing/filters: add TRACE_EVENT_FORMAT_NOFILTER event macro
Frederic Weisbecker suggested that the trace_special event shouldn't be
filterable; this patch adds a TRACE_EVENT_FORMAT_NOFILTER event macro
that allows an event format to be exported without having a filter
attached, and removes filtering from the trace_special event.
Signed-off-by: Tom Zanussi <tzanussi@gmail.com>
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/trace/trace_export.c')
| -rw-r--r-- | kernel/trace/trace_export.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/kernel/trace/trace_export.c b/kernel/trace/trace_export.c index f4e46616c48e..77c494f5e1d6 100644 --- a/kernel/trace/trace_export.c +++ b/kernel/trace/trace_export.c @@ -65,6 +65,22 @@ ftrace_format_##call(struct trace_seq *s) \ return ret; \ } +#undef TRACE_EVENT_FORMAT_NOFILTER +#define TRACE_EVENT_FORMAT_NOFILTER(call, proto, args, fmt, tstruct, \ + tpfmt) \ +static int \ +ftrace_format_##call(struct trace_seq *s) \ +{ \ + struct args field; \ + int ret; \ + \ + tstruct; \ + \ + trace_seq_printf(s, "\nprint fmt: \"%s\"\n", tpfmt); \ + \ + return ret; \ +} + #include "trace_event_types.h" #undef TRACE_ZERO_CHAR @@ -109,6 +125,19 @@ static int ftrace_raw_init_event_##call(void) \ return 0; \ } \ +#undef TRACE_EVENT_FORMAT_NOFILTER +#define TRACE_EVENT_FORMAT_NOFILTER(call, proto, args, fmt, tstruct, \ + tpfmt) \ + \ +struct ftrace_event_call __used \ +__attribute__((__aligned__(4))) \ +__attribute__((section("_ftrace_events"))) event_##call = { \ + .name = #call, \ + .id = proto, \ + .system = __stringify(TRACE_SYSTEM), \ + .show_format = ftrace_format_##call, \ +}; + #include "trace_event_types.h" #undef TRACE_FIELD @@ -150,4 +179,8 @@ ftrace_define_fields_##call(void) \ return ret; \ } +#undef TRACE_EVENT_FORMAT_NOFILTER +#define TRACE_EVENT_FORMAT_NOFILTER(call, proto, args, fmt, tstruct, \ + tpfmt) + #include "trace_event_types.h" |