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kallsyms: drop duplicated ignore patterns from kallsyms.c

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Now that kallsyms.c parses the output from mksysmap, some symbols have
already been dropped.

Move comments to scripts/mksysmap. Also, make the grep command readable.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
This commit is contained in:
Masahiro Yamada 2022-09-26 18:02:27 +09:00
parent 94ff2f63d6
commit a2833d1b07
2 changed files with 13 additions and 4 deletions
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3
scripts/kallsyms.c
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@ -107,9 +107,6 @@ static bool is_ignored_symbol(const char *name, char type)
/* Symbol names that begin with the following are ignored.*/
static const char * const ignored_prefixes[] = {
"$", /* local symbols for ARM, MIPS, etc. */
".L", /* local labels, .LBB,.Ltmpxxx,.L__unnamed_xx,.LASANPC, etc. */
"__crc_", /* modversions */
"__efistub_", /* arm64 EFI stub namespace */
"__kvm_nvhe_$", /* arm64 local symbols in non-VHE KVM namespace */
"__kvm_nvhe_.L", /* arm64 local symbols in non-VHE KVM namespace */

14
scripts/mksysmap
View File

@ -40,5 +40,17 @@
# 'W' or 'w'.
#
# Ignored prefixes:
# $ - local symbols for ARM, MIPS, etc.
# .L - local labels, .LBB,.Ltmpxxx,.L__unnamed_xx,.LASANPC, etc.
# __crc_ - modversions
$NM -n $1 | grep -v '\( [aNUw] \)\|\(__crc_\)\|\( \$[adt]\)\|\( \.L\)\|\( L0\)' > $2
#
# Ignored symbols:
# L0 - for LoongArch?
$NM -n $1 | grep -v \
-e ' [aNUw] ' \
-e ' \$' \
-e ' \.L' \
-e ' __crc_' \
-e ' L0$' \
> $2