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authorFrederic Weisbecker <fweisbec@gmail.com>2009-08-16 20:56:37 +0200
committerIngo Molnar <mingo@elte.hu>2009-08-16 23:06:44 +0200
commit0d3a5c885971de1e3124d85bfadf818abac9ba12 (patch)
treeeb1a76270a7e749609ff9627838f1d9eb6571bd4 /tools/perf
parent0f25bfc8d8b31a4ac8e4ff6cbc3911fb7092a4a7 (diff)
perf tools: Librarize sample type and attr finding from headers
Librarize the sample type and attr fetching from perf data file headers so that we can also use it from perf trace. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Mike Galbraith <efault@gmx.de> LKML-Reference: <1250448997-30715-1-git-send-email-fweisbec@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf')
-rw-r--r--tools/perf/builtin-report.c44
-rw-r--r--tools/perf/util/header.c35
-rw-r--r--tools/perf/util/header.h4
3 files changed, 45 insertions, 38 deletions
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 05d52ff4c33d..c6326deb1636 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -70,6 +70,8 @@ static int cwdlen;
static struct rb_root threads;
static struct thread *last_match;
+static struct perf_header *header;
+
static
struct callchain_param callchain_param = {
.mode = CHAIN_GRAPH_REL,
@@ -1319,29 +1321,12 @@ static void trace_event(event_t *event)
dump_printf(".\n");
}
-static struct perf_header *header;
-
-static struct perf_counter_attr *perf_header__find_attr(u64 id)
-{
- int i;
-
- for (i = 0; i < header->attrs; i++) {
- struct perf_header_attr *attr = header->attr[i];
- int j;
-
- for (j = 0; j < attr->ids; j++) {
- if (attr->id[j] == id)
- return &attr->attr;
- }
- }
-
- return NULL;
-}
-
static int
process_read_event(event_t *event, unsigned long offset, unsigned long head)
{
- struct perf_counter_attr *attr = perf_header__find_attr(event->read.id);
+ struct perf_counter_attr *attr;
+
+ attr = perf_header__find_attr(event->read.id, header);
if (show_threads) {
const char *name = attr ? __event_name(attr->type, attr->config)
@@ -1405,23 +1390,6 @@ process_event(event_t *event, unsigned long offset, unsigned long head)
return 0;
}
-static u64 perf_header__sample_type(void)
-{
- u64 type = 0;
- int i;
-
- for (i = 0; i < header->attrs; i++) {
- struct perf_header_attr *attr = header->attr[i];
-
- if (!type)
- type = attr->attr.sample_type;
- else if (type != attr->attr.sample_type)
- die("non matching sample_type");
- }
-
- return type;
-}
-
static int __cmd_report(void)
{
int ret, rc = EXIT_FAILURE;
@@ -1460,7 +1428,7 @@ static int __cmd_report(void)
header = perf_header__read(input);
head = header->data_offset;
- sample_type = perf_header__sample_type();
+ sample_type = perf_header__sample_type(header);
if (!(sample_type & PERF_SAMPLE_CALLCHAIN)) {
if (sort__has_parent) {
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index b92a457ca32e..a37a2221a0c3 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -243,3 +243,38 @@ struct perf_header *perf_header__read(int fd)
return self;
}
+
+u64 perf_header__sample_type(struct perf_header *header)
+{
+ u64 type = 0;
+ int i;
+
+ for (i = 0; i < header->attrs; i++) {
+ struct perf_header_attr *attr = header->attr[i];
+
+ if (!type)
+ type = attr->attr.sample_type;
+ else if (type != attr->attr.sample_type)
+ die("non matching sample_type");
+ }
+
+ return type;
+}
+
+struct perf_counter_attr *
+perf_header__find_attr(u64 id, struct perf_header *header)
+{
+ int i;
+
+ for (i = 0; i < header->attrs; i++) {
+ struct perf_header_attr *attr = header->attr[i];
+ int j;
+
+ for (j = 0; j < attr->ids; j++) {
+ if (attr->id[j] == id)
+ return &attr->attr;
+ }
+ }
+
+ return NULL;
+}
diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h
index bf280449fcfd..5d0a72ecc919 100644
--- a/tools/perf/util/header.h
+++ b/tools/perf/util/header.h
@@ -31,6 +31,10 @@ struct perf_header_attr *
perf_header_attr__new(struct perf_counter_attr *attr);
void perf_header_attr__add_id(struct perf_header_attr *self, u64 id);
+u64 perf_header__sample_type(struct perf_header *header);
+struct perf_counter_attr *
+perf_header__find_attr(u64 id, struct perf_header *header);
+
struct perf_header *perf_header__new(void);