kallsyms: drop duplicated ignore patterns from kallsyms.c

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>

diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c
index f18e6df..313cc81 100644 (file)
--- a/scripts/kallsyms.c
+++ b/scripts/kallsyms.c
@@ -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 */

diff --git a/scripts/mksysmap b/scripts/mksysmap
index bc5396e..75f3dfd 100755 (executable)
--- a/scripts/mksysmap
+++ b/scripts/mksysmap
@@ -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