summaryrefslogtreecommitdiffstats
path: root/tools/perf/util
diff options
context:
space:
mode:
Diffstat (limited to 'tools/perf/util')
-rw-r--r--tools/perf/util/symbol.c28
1 files changed, 26 insertions, 2 deletions
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index cb086cbe6b1..9cf6dbcd158 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -1334,13 +1334,37 @@ out_failure:
static int dso__load_vmlinux(struct dso *self, struct map *map,
const char *vmlinux, symbol_filter_t filter)
{
- int err, fd = open(vmlinux, O_RDONLY);
+ int err = -1, fd;
- self->loaded = 1;
+ if (self->has_build_id) {
+ u8 build_id[BUILD_ID_SIZE];
+
+ if (filename__read_build_id(vmlinux, build_id,
+ sizeof(build_id)) < 0) {
+ pr_debug("No build_id in %s, ignoring it\n", vmlinux);
+ return -1;
+ }
+ if (!dso__build_id_equal(self, build_id)) {
+ char expected_build_id[BUILD_ID_SIZE * 2 + 1],
+ vmlinux_build_id[BUILD_ID_SIZE * 2 + 1];
+
+ build_id__sprintf(self->build_id,
+ sizeof(self->build_id),
+ expected_build_id);
+ build_id__sprintf(build_id, sizeof(build_id),
+ vmlinux_build_id);
+ pr_debug("build_id in %s is %s while expected is %s, "
+ "ignoring it\n", vmlinux, vmlinux_build_id,
+ expected_build_id);
+ return -1;
+ }
+ }
+ fd = open(vmlinux, O_RDONLY);
if (fd < 0)
return -1;
+ self->loaded = 1;
err = dso__load_sym(self, map, self->long_name, fd, filter, 1, 0);
close(fd);