[PATCH v2 3/8] perf tools: Check system path when check debuginfo

[Namhyung Kim <namhyung@kernel.org>]

The debuginfo__new() has a fallback to try the given path, but it seems
that it can check SYSTEM_PATH_DSO type in the dso__find_dbginfo_type()
instead.

One corner case would be when dso__new() fails in debuginfo__new() but
it should be rare and memory is exhausted.  I think it's fine to fail
for that case.

Reviewed-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/debuginfo.c | 12 +++---------
 tools/perf/util/dso.c       |  1 +
 2 files changed, 4 insertions(+), 9 deletions(-)

diff --git a/tools/perf/util/debuginfo.c b/tools/perf/util/debuginfo.c
index d6bd0fcc22648f0e..2669d5f5ee6121d4 100644
--- a/tools/perf/util/debuginfo.c
+++ b/tools/perf/util/debuginfo.c
@@ -101,7 +101,7 @@ struct debuginfo *debuginfo__new(const char *path)
 	/* Try to open distro debuginfo files */
 	dso = dso__new(path);
 	if (!dso)
-		goto out;
+		return NULL;
 
 	/*
 	 * Set the build id for DSO_BINARY_TYPE__BUILDID_DEBUGINFO. Don't block
@@ -114,18 +114,12 @@ struct debuginfo *debuginfo__new(const char *path)
 	dso__find_dbginfo_type(dso);
 	if (dso__read_binary_type_filename(dso, dso__dbginfo_type(dso), &nil,
 					   buf, PATH_MAX) < 0)
-		goto out;
+		return NULL;
 
 	dinfo = __debuginfo__new(buf);
 	dso__put(dso);
 
-out:
-	if (dinfo)
-		return dinfo;
-
-	/* if failed to open all distro debuginfo, open given binary */
-	symbol__join_symfs(buf, path);
-	return __debuginfo__new(buf);
+	return dinfo;
 }
 
 void debuginfo__delete(struct debuginfo *dbg)
diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index 44cfc16cfbe49600..ceebb32d0a48a96f 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -2117,6 +2117,7 @@ void dso__find_dbginfo_type(struct dso *dso)
 		DSO_BINARY_TYPE__MIXEDUP_UBUNTU_DEBUGINFO,
 		DSO_BINARY_TYPE__OPENEMBEDDED_DEBUGINFO,
 		DSO_BINARY_TYPE__BUILDID_DEBUGINFO,
+		DSO_BINARY_TYPE__SYSTEM_PATH_DSO,
 		DSO_BINARY_TYPE__NOT_FOUND,
 	};
 	const enum dso_binary_type *type;
-- 
2.55.0