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authorArnaldo Carvalho de Melo <acme@redhat.com>2009-12-11 21:24:02 -0200
committerIngo Molnar <mingo@elte.hu>2009-12-12 07:42:12 +0100
commit94c744b6c0c6c5802a85ebfebbec429ac5851f2b (patch)
treee34dcaca54f1d7752ab1e7974bb73f94ff3cf94c /tools/perf/builtin-report.c
parentea08d8cbd162fe3756e3e2298efbe0b8b12f92d1 (diff)
downloadop-kernel-dev-94c744b6c0c6c5802a85ebfebbec429ac5851f2b.zip
op-kernel-dev-94c744b6c0c6c5802a85ebfebbec429ac5851f2b.tar.gz
perf tools: Introduce perf_session class
That does all the initialization boilerplate, opening the file, reading the header, checking if it is valid, etc. And that will as well have the threads list, kmap (now) global variable, etc, so that we can handle two (or more) perf.data files describing sessions to compare. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1260573842-19720-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/builtin-report.c')
-rw-r--r--tools/perf/builtin-report.c20
1 files changed, 13 insertions, 7 deletions
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 2b9eb3a..e2ec49a 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -22,6 +22,7 @@
#include "perf.h"
#include "util/debug.h"
#include "util/header.h"
+#include "util/session.h"
#include "util/parse-options.h"
#include "util/parse-events.h"
@@ -52,7 +53,7 @@ static int exclude_other = 1;
static char callchain_default_opt[] = "fractal,0.5";
-static struct perf_header *header;
+static struct perf_session *session;
static u64 sample_type;
@@ -701,7 +702,7 @@ static int process_read_event(event_t *event)
{
struct perf_event_attr *attr;
- attr = perf_header__find_attr(event->read.id, header);
+ attr = perf_header__find_attr(event->read.id, &session->header);
if (show_threads) {
const char *name = attr ? __event_name(attr->type, attr->config)
@@ -766,6 +767,10 @@ static int __cmd_report(void)
struct thread *idle;
int ret;
+ session = perf_session__new(input_name, O_RDONLY, force);
+ if (session == NULL)
+ return -ENOMEM;
+
idle = register_idle_thread();
thread__comm_adjust(idle);
@@ -774,14 +779,14 @@ static int __cmd_report(void)
register_perf_file_handler(&file_handler);
- ret = mmap_dispatch_perf_file(&header, input_name, force,
- full_paths, &event__cwdlen, &event__cwd);
+ ret = perf_session__process_events(session, full_paths,
+ &event__cwdlen, &event__cwd);
if (ret)
- return ret;
+ goto out_delete;
if (dump_trace) {
event__print_totals();
- return 0;
+ goto out_delete;
}
if (verbose > 3)
@@ -796,7 +801,8 @@ static int __cmd_report(void)
if (show_threads)
perf_read_values_destroy(&show_threads_values);
-
+out_delete:
+ perf_session__delete(session);
return ret;
}
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