forge/linux-pinenote
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

perf tools: Librarize sample type and attr finding from headers

Browse source 
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>
This commit is contained in:
Frederic Weisbecker 2009-08-16 20:56:37 +02:00 • committed by Ingo Molnar
parent 0f25bfc8d8
commit 0d3a5c8859
3 changed files with 45 additions and 38 deletions
Download patch file Download diff file Expand all files Collapse all files

35
tools/perf/util/header.c
View file

@ -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;
}