| Message ID | 20220926090229.643134-5-masahiroy@kernel.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [1/5] mksysmap: update comment about __crc_* | expand |
diff --git a/scripts/mksysmap b/scripts/mksysmap index 75f3dfd1c156..16a08b8ef2f8 100755 --- a/scripts/mksysmap +++ b/scripts/mksysmap @@ -43,6 +43,8 @@ # $ - local symbols for ARM, MIPS, etc. # .L - local labels, .LBB,.Ltmpxxx,.L__unnamed_xx,.LASANPC, etc. # __crc_ - modversions +# __kstrtab_ - EXPORT_SYMBOL (symbol name) +# __kstrtabns_ - EXPORT_SYMBOL (namespace) # # Ignored symbols: # L0 - for LoongArch? @@ -52,5 +54,7 @@ $NM -n $1 | grep -v \ -e ' \$' \ -e ' \.L' \ -e ' __crc_' \ + -e ' __kstrtab_' \ + -e ' __kstrtabns_' \ -e ' L0$' \ > $2
Every EXPORT_SYMBOL creates __kstrtab_* and __kstrtabns_*, which consumes 15-20% of the kallsyms entries. For x86_64 defconfig, $ cat /proc/kallsyms | wc 129527 388581 5685465 $ cat /proc/kallsyms | grep __kstrtab | wc 23489 70467 1187932 We already ignore __crc_* symbols populated by EXPORT_SYMBOL, so it should be fine to ignore __kstrtab_* and __kstrtabns_* as well. This makes vmlinux a bit smaller. $ size vmlinux.before vmlinux.after text data bss dec hex filename 22785374 8559694 1413328 32758396 1f3da7c vmlinux.before 22785374 8137806 1413328 32336508 1ed6a7c vmlinux.after Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> --- scripts/mksysmap | 4 ++++ 1 file changed, 4 insertions(+)