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perf tools: Don't die in perf_header_attr__new()

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We really should propagate such kinds of errors so that users of
these library functions decide what to do in such cases instead
of exiting in random places like now.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <1258407027-384-1-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Arnaldo Carvalho de Melo 2009-11-16 19:30:26 -02:00 committed by Ingo Molnar
parent c34984b2bb
commit dc79c0fc08
3 changed files with 17 additions and 14 deletions
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5
tools/perf/builtin-record.c
View File

@ -220,7 +220,8 @@ static struct perf_header_attr *get_header_attr(struct perf_event_attr *a, int n
h_attr = header->attr[nr];
} else {
h_attr = perf_header_attr__new(a);
perf_header__add_attr(header, h_attr);
if (h_attr != NULL)
perf_header__add_attr(header, h_attr);
}
return h_attr;
@ -308,6 +309,8 @@ try_again:
}
h_attr = get_header_attr(attr, counter);
if (h_attr == NULL)
die("nomem\n");
if (!file_new) {
if (memcmp(&h_attr->attr, attr, sizeof(*attr))) {

22
tools/perf/util/header.c
View File

@ -19,16 +19,16 @@ struct perf_header_attr *perf_header_attr__new(struct perf_event_attr *attr)
{
struct perf_header_attr *self = malloc(sizeof(*self));
if (!self)
die("nomem");
self->attr = *attr;
self->ids = 0;
self->size = 1;
self->id = malloc(sizeof(u64));
if (!self->id)
die("nomem");
if (self != NULL) {
self->attr = *attr;
self->ids = 0;
self->size = 1;
self->id = malloc(sizeof(u64));
if (self->id == NULL) {
free(self);
self = NULL;
}
}
return self;
}
@ -423,6 +423,8 @@ struct perf_header *perf_header__read(int fd)
tmp = lseek(fd, 0, SEEK_CUR);
attr = perf_header_attr__new(&f_attr.attr);
if (attr == NULL)
die("nomem");
nr_ids = f_attr.ids.size / sizeof(u64);
lseek(fd, f_attr.ids.offset, SEEK_SET);

4
tools/perf/util/header.h
View File

@ -64,9 +64,7 @@ void perf_header__add_attr(struct perf_header *self,
void perf_header__push_event(u64 id, const char *name);
char *perf_header__find_event(u64 id);
struct perf_header_attr *
perf_header_attr__new(struct perf_event_attr *attr);
struct perf_header_attr *perf_header_attr__new(struct perf_event_attr *attr);
void perf_header_attr__add_id(struct perf_header_attr *self, u64 id);
u64 perf_header__sample_type(struct perf_header *header);