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perf trace: Separate tp syscall field caching into init routine to be reused

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We need to set this in evsels coming out of a perf.data file header, not
just for new ones created for live sessions.

So separate the code that caches the syscall entry/exit tracepoint
format fields into a new function that will be used in the next
changeset.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/20131112115700.GC4053@ghostprotocols.net
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim 2013-11-12 08:51:45 -03:00 committed by Arnaldo Carvalho de Melo
parent 73faab3a42
commit 96695d4402
1 changed files with 20 additions and 8 deletions
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28
tools/perf/builtin-trace.c
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@ -149,20 +149,32 @@ static void perf_evsel__delete_priv(struct perf_evsel *evsel)
perf_evsel__delete(evsel);
}
static int perf_evsel__init_syscall_tp(struct perf_evsel *evsel, void *handler)
{
evsel->priv = malloc(sizeof(struct syscall_tp));
if (evsel->priv != NULL) {
if (perf_evsel__init_sc_tp_uint_field(evsel, id))
goto out_delete;
evsel->handler = handler;
return 0;
}
return -ENOMEM;
out_delete:
free(evsel->priv);
evsel->priv = NULL;
return -ENOENT;
}
static struct perf_evsel *perf_evsel__syscall_newtp(const char *direction, void *handler)
{
struct perf_evsel *evsel = perf_evsel__newtp("raw_syscalls", direction);
if (evsel) {
evsel->priv = malloc(sizeof(struct syscall_tp));
if (evsel->priv == NULL)
if (perf_evsel__init_syscall_tp(evsel, handler))
goto out_delete;
if (perf_evsel__init_sc_tp_uint_field(evsel, id))
goto out_delete;
evsel->handler = handler;
}
return evsel;