perf probe: Support distro-style debuginfo for uprobe

[linux-2.6-block.git] / tools / perf / util / probe-finder.c

diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index 4f6e277c457c4bf599a16d6b52f3be5fb91f02af..df0238654698d8967120f538a68b6aec5da18426 100644 (file)
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -34,6 +34,7 @@
 
 #include <linux/bitops.h>
 #include "event.h"
+#include "dso.h"
 #include "debug.h"
 #include "intlist.h"
 #include "util.h"
@@ -89,7 +90,7 @@ error:
        return -ENOENT;
 }
 
-struct debuginfo *debuginfo__new(const char *path)
+static struct debuginfo *__debuginfo__new(const char *path)
 {
        struct debuginfo *dbg = zalloc(sizeof(*dbg));
        if (!dbg)
@@ -97,10 +98,46 @@ struct debuginfo *debuginfo__new(const char *path)
 
        if (debuginfo__init_offline_dwarf(dbg, path) < 0)
                zfree(&dbg);
-
+       if (dbg)
+               pr_debug("Open Debuginfo file: %s\n", path);
        return dbg;
 }
 
+enum dso_binary_type distro_dwarf_types[] = {
+       DSO_BINARY_TYPE__FEDORA_DEBUGINFO,
+       DSO_BINARY_TYPE__UBUNTU_DEBUGINFO,
+       DSO_BINARY_TYPE__OPENEMBEDDED_DEBUGINFO,
+       DSO_BINARY_TYPE__BUILDID_DEBUGINFO,
+       DSO_BINARY_TYPE__NOT_FOUND,
+};
+
+struct debuginfo *debuginfo__new(const char *path)
+{
+       enum dso_binary_type *type;
+       char buf[PATH_MAX], nil = '\0';
+       struct dso *dso;
+       struct debuginfo *dinfo = NULL;
+
+       /* Try to open distro debuginfo files */
+       dso = dso__new(path);
+       if (!dso)
+               goto out;
+
+       for (type = distro_dwarf_types;
+            !dinfo && *type != DSO_BINARY_TYPE__NOT_FOUND;
+            type++) {
+               if (dso__read_binary_type_filename(dso, *type, &nil,
+                                                  buf, PATH_MAX) < 0)
+                       continue;
+               dinfo = __debuginfo__new(buf);
+       }
+       dso__delete(dso);
+
+out:
+       /* if failed to open all distro debuginfo, open given binary */
+       return dinfo ? : __debuginfo__new(path);
+}
+
 void debuginfo__delete(struct debuginfo *dbg)
 {
        if (dbg) {