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Date: Sun, 1 Sep 2013 12:36:24 +0200
From: Jiri Olsa <jolsa@...hat.com>
To: linux-kernel@...r.kernel.org
Cc: Jiri Olsa <jolsa@...hat.com>,
Corey Ashford <cjashfor@...ux.vnet.ibm.com>,
Frederic Weisbecker <fweisbec@...il.com>,
Ingo Molnar <mingo@...e.hu>,
Namhyung Kim <namhyung@...nel.org>,
Paul Mackerras <paulus@...ba.org>,
Peter Zijlstra <a.p.zijlstra@...llo.nl>,
Arnaldo Carvalho de Melo <acme@...hat.com>,
Andi Kleen <ak@...ux.intel.com>,
David Ahern <dsahern@...il.com>
Subject: [PATCH 13/25] perf tools: Using evlist as a holder for event_desc feature
Using evlist as a holder for events stored via event_desc
feature. The event_desc events data is same as the one
stored via main header. We will use event_desc data to
replace the main header data source in next patches.
Signed-off-by: Jiri Olsa <jolsa@...hat.com>
Cc: Corey Ashford <cjashfor@...ux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Ingo Molnar <mingo@...e.hu>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
Cc: Andi Kleen <ak@...ux.intel.com>
Cc: David Ahern <dsahern@...il.com>
---
tools/perf/util/header.c | 84 ++++++++++++++++++++++--------------------------
1 file changed, 38 insertions(+), 46 deletions(-)
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 3f58a3f..e43879e 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -1208,28 +1208,11 @@ static void print_cpu_topology(struct perf_header *ph, int fd __maybe_unused,
}
}
-static void free_event_desc(struct perf_evsel *events)
-{
- struct perf_evsel *evsel;
-
- if (!events)
- return;
-
- for (evsel = events; evsel->attr.size; evsel++) {
- if (evsel->name)
- free(evsel->name);
- if (evsel->id)
- free(evsel->id);
- }
-
- free(events);
-}
-
-static struct perf_evsel *
+static struct perf_evlist *
read_event_desc(struct perf_header *ph, int fd)
{
- struct perf_evsel *evsel, *events = NULL;
- u64 *id;
+ struct perf_evlist *evlist = NULL;
+ struct perf_evsel *evsel;
void *buf = NULL;
u32 nre, sz, nr, i, j;
ssize_t ret;
@@ -1255,18 +1238,15 @@ read_event_desc(struct perf_header *ph, int fd)
if (!buf)
goto error;
- /* the last event terminates with evsel->attr.size == 0: */
- events = calloc(nre + 1, sizeof(*events));
- if (!events)
+ evlist = perf_evlist__new();
+ if (!evlist)
goto error;
msz = sizeof(evsel->attr);
if (sz < msz)
msz = sz;
- for (i = 0, evsel = events; i < nre; evsel++, i++) {
- evsel->idx = i;
-
+ for (i = 0; i < nre; i++) {
/*
* must read entire on-file attr struct to
* sync up with layout.
@@ -1275,6 +1255,10 @@ read_event_desc(struct perf_header *ph, int fd)
if (ret != (ssize_t)sz)
goto error;
+ evsel = perf_evsel__new(buf, i);
+ if (!evsel)
+ goto error;
+
if (ph->needs_swap)
perf_event__attr_swap(buf);
@@ -1289,49 +1273,55 @@ read_event_desc(struct perf_header *ph, int fd)
evsel->needs_swap = true;
}
+ perf_evlist__add(evlist, evsel);
+
evsel->name = do_read_string(fd, ph);
if (!nr)
continue;
- id = calloc(nr, sizeof(*id));
- if (!id)
+ if (perf_evsel__alloc_id(evsel, 1, nr))
goto error;
+
evsel->ids = nr;
- evsel->id = id;
for (j = 0 ; j < nr; j++) {
- ret = readn(fd, id, sizeof(*id));
- if (ret != (ssize_t)sizeof(*id))
+ u64 id;
+
+ ret = readn(fd, &id, sizeof(id));
+ if (ret != (ssize_t)sizeof(id))
goto error;
if (ph->needs_swap)
- *id = bswap_64(*id);
- id++;
+ id = bswap_64(id);
+
+ perf_evlist__id_add(evlist, evsel, 0, j, id);
}
}
out:
if (buf)
free(buf);
- return events;
+ return evlist;
error:
- if (events)
- free_event_desc(events);
- events = NULL;
+ if (evlist)
+ perf_evlist__delete(evlist);
+ evlist = NULL;
goto out;
}
static void print_event_desc(struct perf_header *ph, int fd, FILE *fp)
{
- struct perf_evsel *evsel, *events = read_event_desc(ph, fd);
+ struct perf_evlist *evlist;
+ struct perf_evsel *evsel;
u32 j;
u64 *id;
- if (!events) {
+ evlist = read_event_desc(ph, fd);
+ if (!evlist) {
fprintf(fp, "# event desc: not available or unable to read\n");
return;
}
- for (evsel = events; evsel->attr.size; evsel++) {
+ list_for_each_entry(evsel, &evlist->entries, node) {
fprintf(fp, "# event : name = %s, ", evsel->name);
fprintf(fp, "type = %d, config = 0x%"PRIx64
@@ -1364,7 +1354,7 @@ static void print_event_desc(struct perf_header *ph, int fd, FILE *fp)
fputc('\n', fp);
}
- free_event_desc(events);
+ perf_evlist__delete(evlist);
}
static void print_total_mem(struct perf_header *ph, int fd __maybe_unused,
@@ -1785,17 +1775,19 @@ process_event_desc(struct perf_file_section *section __maybe_unused,
void *data __maybe_unused)
{
struct perf_session *session;
- struct perf_evsel *evsel, *events = read_event_desc(header, fd);
+ struct perf_evlist *evlist;
+ struct perf_evsel *evsel;
- if (!events)
+ evlist = read_event_desc(header, fd);
+ if (!evlist)
return 0;
session = container_of(header, struct perf_session, header);
- for (evsel = events; evsel->attr.size; evsel++)
- perf_evlist__set_event_name(session->evlist, evsel);
- free_event_desc(events);
+ list_for_each_entry(evsel, &evlist->entries, node)
+ perf_evlist__set_event_name(session->evlist, evsel);
+ perf_evlist__delete(evlist);
return 0;
}
--
1.7.11.7
--
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