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perf tools: Introduce event selectors

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Out of ad-hoc code and global arrays with hard coded sizes.

This is the first step on having a library that will be first
used on regression tests in the 'perf test' tool.

[acme@felicio linux]$ size /tmp/perf.before
   text	   data	    bss	    dec	    hex	filename
1273776	  97384	5104416	6475576	 62cf38	/tmp/perf.before
[acme@felicio linux]$ size /tmp/perf.new
   text	   data	    bss	    dec	    hex	filename
1275422	  97416	1392416	2765254	 2a31c6	/tmp/perf.new

Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo
2011-01-03 16:39:04 -02:00
parent 56f4c40034
commit 69aad6f1ee
14 changed files with 432 additions and 244 deletions
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9
tools/perf/util/header.c
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@@ -461,7 +461,7 @@ static int perf_header__adds_write(struct perf_header *self, int fd)
/* Write trace info */
trace_sec->offset = lseek(fd, 0, SEEK_CUR);
read_tracing_data(fd, attrs, nr_counters);
read_tracing_data(fd, &evsel_list);
trace_sec->size = lseek(fd, 0, SEEK_CUR) - trace_sec->offset;
}
@@ -1131,8 +1131,7 @@ int event__process_event_type(event_t *self,
return 0;
}
int event__synthesize_tracing_data(int fd, struct perf_event_attr *pattrs,
int nb_events,
int event__synthesize_tracing_data(int fd, struct list_head *pattrs,
event__handler_t process,
struct perf_session *session __unused)
{
@@ -1143,7 +1142,7 @@ int event__synthesize_tracing_data(int fd, struct perf_event_attr *pattrs,
memset(&ev, 0, sizeof(ev));
ev.tracing_data.header.type = PERF_RECORD_HEADER_TRACING_DATA;
size = read_tracing_data_size(fd, pattrs, nb_events);
size = read_tracing_data_size(fd, pattrs);
if (size <= 0)
return size;
aligned_size = ALIGN(size, sizeof(u64));
@@ -1153,7 +1152,7 @@ int event__synthesize_tracing_data(int fd, struct perf_event_attr *pattrs,
process(&ev, NULL, session);
err = read_tracing_data(fd, pattrs, nb_events);
err = read_tracing_data(fd, pattrs);
write_padded(fd, NULL, 0, padding);
return aligned_size;