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scripts/bloat-o-meter: add -p argument

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When doing cross platform development on a machine sometimes it might be
useful to invoke bloat-o-meter for files which haven't been build with the
native toolchain.  In cases when the host nm doesn't support the target
one then a toolchain-specific nm could be used.  Add this ability by
adding the -p allowing invocations as:

./scripts/bloat-o-meter -p riscv64-unknown-linux-gnu- file1.o file2.o

Link: https://lkml.kernel.org/r/20220701113513.1938008-2-nborisov@suse.com
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Nikolay Borisov 2022-07-01 14:35:13 +03:00 committed by akpm
parent b62eb2731e
commit 8b5db66798
1 changed files with 6 additions and 1 deletions
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7
scripts/bloat-o-meter
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@ -17,6 +17,7 @@ group = parser.add_mutually_exclusive_group()
group.add_argument('-c', help='categorize output based on symbol type', action='store_true')
group.add_argument('-d', help='Show delta of Data Section', action='store_true')
group.add_argument('-t', help='Show delta of text Section', action='store_true')
parser.add_argument('-p', dest='prefix', help='Arch prefix for the tool being used. Useful in cross build scenarios')
parser.add_argument('file1', help='First file to compare')
parser.add_argument('file2', help='Second file to compare')
@ -26,7 +27,11 @@ re_NUMBER = re.compile(r'\.[0-9]+')
def getsizes(file, format):
sym = {}
with os.popen("nm --size-sort " + file) as f:
nm = "nm"
if args.prefix:
nm = "{}nm".format(args.prefix)
with os.popen("{} --size-sort {}".format(nm, file)) as f:
for line in f:
if line.startswith("\n") or ":" in line:
continue