perf disassemble: Move check for kallsyms + !kcore
We don't need to do all that filename logic to then just have to test
something unrelated and bail out, move it to the start of the function.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-lk1v4srtsktonnyp6t1o0uhx@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 4024d30..9882bc6 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -1165,11 +1165,10 @@
int symbol__disassemble(struct symbol *sym, struct map *map, size_t privsize)
{
struct dso *dso = map->dso;
- char *filename = dso__build_id_filename(dso, NULL, 0);
+ char *filename;
bool free_filename = true;
char command[PATH_MAX * 2];
FILE *file;
- int err = 0;
char symfs_filename[PATH_MAX];
struct kcore_extract kce;
bool delete_extract = false;
@@ -1177,7 +1176,13 @@
int lineno = 0;
int nline;
pid_t pid;
+ int err = SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX;
+ if (dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS &&
+ !dso__is_kcore(dso))
+ goto out;
+
+ filename = dso__build_id_filename(dso, NULL, 0);
if (filename)
symbol__join_symfs(symfs_filename, filename);
@@ -1201,12 +1206,6 @@
free_filename = false;
}
- if (dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS &&
- !dso__is_kcore(dso)) {
- err = SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX;
- goto out_free_filename;
- }
-
pr_debug("%s: filename=%s, sym=%s, start=%#" PRIx64 ", end=%#" PRIx64 "\n", __func__,
filename, sym->name, map->unmap_ip(map, sym->start),
map->unmap_ip(map, sym->end));
@@ -1338,6 +1337,7 @@
kcore_extract__delete(&kce);
if (free_filename)
free(filename);
+out:
return err;
out_close_stdout: