[patch 009/163] scripts/bloat-o-meter: Support comparing library archives

Andrew Morton
2020-08-07T06:17:35Z

From: Nikolay Borisov <nborisov@suse.com>
Subject: scripts/bloat-o-meter: Support comparing library archives

Library archives (.a) usually contain multiple object files so their
output of nm --size-sort contains lines like:

<omitted for brevity>
00000000000003a8 t run_test

extent-map-tests.o:
<omitted for brevity>

bloat-o-meter currently doesn't handle them which results in errors when
calling .split() on them. Fix this by simply ignoring them. This enables
diffing subsystems which generate built-in.a files.

Link: http://lkml.kernel.org/r/20200603103513.3712-1-nborisov@suse.com
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

scripts/bloat-o-meter | 2 ++
1 file changed, 2 insertions(+)

--- a/scripts/bloat-o-meter~bloat-o-meter-support-comparing-library-archives
+++ a/scripts/bloat-o-meter
@@ -26,6 +26,8 @@ def getsizes(file, format):
sym = {}
with os.popen("nm --size-sort " + file) as f:
for line in f:
+ if line.startswith("\n") or ":" in line:
+ continue
size, type, name = line.split()
if type in format:
# strip generated symbols
_