scripts/kallsyms: remove redundant is_arm_mapping_symbol()

Since commit 6f00df24ee39 ("[PATCH] Strip local symbols from kallsyms"),
all symbols starting '$' are ignored.

is_arm_mapping_symbol() particularly ignores $a, $t, etc. but it is
redundant.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c
index c9efb67c6ecb7616c78659c2a8e177ec75acd5ed..14a50c8d3f3400ea1b40b0eaeb7f045b57d2d4da 100644 (file)
--- a/scripts/kallsyms.c
+++ b/scripts/kallsyms.c
@@ -74,16 +74,6 @@ static void usage(void)
        exit(1);
 }
 
-/*
- * This ignores the intensely annoying "mapping symbols" found
- * in ARM ELF files: $a, $t and $d.
- */
-static int is_arm_mapping_symbol(const char *str)
-{
-       return str[0] == '$' && strchr("axtd", str[1])
-              && (str[2] == '\0' || str[2] == '.');
-}
-
 static int check_symbol_range(const char *sym, unsigned long long addr,
                              struct addr_range *ranges, int entries)
 {
@@ -139,10 +129,13 @@ static int read_symbol(FILE *in, struct sym_entry *s)
                        return -1;
 
        }
-       else if (toupper(stype) == 'U' ||
-                is_arm_mapping_symbol(sym))
+       else if (toupper(stype) == 'U')
                return -1;
-       /* exclude also MIPS ELF local symbols ($L123 instead of .L123) */
+       /*
+        * Ignore generated symbols such as:
+        *  - mapping symbols in ARM ELF files ($a, $t, and $d)
+        *  - MIPS ELF local symbols ($L123 instead of .L123)
+        */
        else if (sym[0] == '$')
                return -1;
        /* exclude debugging symbols */