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scripts/bloat-o-meter: Support comparing library archives

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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.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/20200603103513.3712-1-nborisov@suse.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Nikolay Borisov 2020-08-06 23:17:32 -07:00 • committed by Linus Torvalds
parent 4f491bb6ea
commit 1d35b6054a
1 changed files with 2 additions and 0 deletions
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2
scripts/bloat-o-meter
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@ -26,6 +26,8 @@ def getsizes(file, format):
sym = {} sym = {}
with os.popen("nm --size-sort " + file) as f: with os.popen("nm --size-sort " + file) as f:
for line in f: for line in f:
if line.startswith("\n") or ":" in line:
continue
size, type, name = line.split() size, type, name = line.split()
if type in format: if type in format:
# strip generated symbols # strip generated symbols