iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

scripts/kallsyms: remove redundant is_arm_mapping_symbol()

Browse Source 
Since commit 6f00df24ee ("[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>
This commit is contained in:
Masahiro Yamada
2019-11-24 01:04:33 +09:00
parent f34ea02910
commit e0109042cc
1 changed files with 6 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
scripts/kallsyms.c
View File

@ -74,16 +74,6 @@ static void usage(void)
exit(1); 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, static int check_symbol_range(const char *sym, unsigned long long addr,
struct addr_range *ranges, int entries) struct addr_range *ranges, int entries)
{ {
@ -139,10 +129,13 @@ static int read_symbol(FILE *in, struct sym_entry *s)
return -1; return -1;
} }
else if (toupper(stype) == 'U' || else if (toupper(stype) == 'U')
is_arm_mapping_symbol(sym))
return -1; 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] == '$') else if (sym[0] == '$')
return -1; return -1;
/* exclude debugging symbols */ /* exclude debugging symbols */