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perf machine: Pass buffer size to machine__mmap_name

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Don't blindly assume that the size of the buffer is enough, use
snprintf.

Cc: Avi Kivity <avi@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>
Cc: Zhang, Yanmin <yanmin_zhang@linux.intel.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo
2010-04-27 21:19:05 -03:00
parent 23346f21b2
commit 48ea8f5470
4 changed files with 11 additions and 11 deletions
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6
tools/perf/util/symbol.c
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@ -1856,7 +1856,7 @@ static int dso__load_guest_kernel_sym(struct dso *self, struct map *map,
out_try_fixup:
if (err > 0) {
if (kallsyms_filename != NULL) {
machine__mmap_name(machine, path);
machine__mmap_name(machine, path, sizeof(path));
dso__set_long_name(self, strdup(path));
}
map__fixup_start(map);
@ -1961,8 +1961,8 @@ struct dso *dso__new_kernel(const char *name)
static struct dso *dso__new_guest_kernel(struct machine *machine,
const char *name)
{
char buff[PATH_MAX];
struct dso *self = dso__new(name ?: machine__mmap_name(machine, buff));
char bf[PATH_MAX];
struct dso *self = dso__new(name ?: machine__mmap_name(machine, bf, sizeof(bf)));
if (self != NULL) {
dso__set_short_name(self, "[guest.kernel]");