[PATCH] scripts/bloat-o-meter: ignore _sdata
From: Yury Norov
Date: Mon May 04 2026 - 16:36:21 EST
_sdata is a linker symbol, but bloat-o-meter may consider it
as a real variable:
$ scripts/bloat-o-meter vmlinux.orig vmlinux
add/remove: 7/1 grow/shrink: 0/0 up/down: 3437/-4096 (-659)
Function old new delta
crc32table_le - 1024 +1024
crc32table_be - 1024 +1024
crc32ctable_le - 1024 +1024
byte_rev_table - 256 +256
crc32_be - 39 +39
crc32c - 35 +35
crc32_le - 35 +35
_sdata 4096 - -4096
Total: Before=8592564398, After=8592563739, chg -0.00%
With the patch:
$ scripts/bloat-o-meter vmlinux.orig vmlinux
add/remove: 7/0 grow/shrink: 0/0 up/down: 3437/0 (3437)
Function old new delta
crc32table_le - 1024 +1024
crc32table_be - 1024 +1024
crc32ctable_le - 1024 +1024
byte_rev_table - 256 +256
crc32_be - 39 +39
crc32c - 35 +35
crc32_le - 35 +35
Total: Before=8592560302, After=8592563739, chg +0.00%
Signed-off-by: Yury Norov <ynorov@xxxxxxxxxx>
---
scripts/bloat-o-meter | 1 +
1 file changed, 1 insertion(+)
diff --git a/scripts/bloat-o-meter b/scripts/bloat-o-meter
index 9b4fb996d95b..5868a8b11b0f 100755
--- a/scripts/bloat-o-meter
+++ b/scripts/bloat-o-meter
@@ -43,6 +43,7 @@ def getsizes(file, format):
if name.startswith("__se_compat_sys"): continue
if name.startswith("__addressable_"): continue
if name.startswith("__noinstr_text_start"): continue
+ if name.startswith("_sdata"): continue
if name == "linux_banner": continue
if name == "vermagic": continue
# statics and some other optimizations adds random .NUMBER
--
2.51.0