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[PATCH] move kallsyms data to .rodata 

Kallsyms data is never written to, so it can as well benefit from
CONFIG_DEBUG_RODATA.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
hifive-unleashed-5.1
Jan Beulich 2006-12-08 02:35:57 -08:00 committed by Linus Torvalds
parent d93f7de8c5
commit aad094701c
2 changed files with 9 additions and 9 deletions
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16
kernel/kallsyms.c
View File

@ -31,14 +31,14 @@
#endif
/* These will be re-linked against their real values during the second link stage */
extern unsigned long kallsyms_addresses[] __attribute__((weak));
extern unsigned long kallsyms_num_syms __attribute__((weak,section("data")));
extern u8 kallsyms_names[] __attribute__((weak));
extern const unsigned long kallsyms_addresses[] __attribute__((weak));
extern const unsigned long kallsyms_num_syms __attribute__((weak));
extern const u8 kallsyms_names[] __attribute__((weak));
extern u8 kallsyms_token_table[] __attribute__((weak));
extern u16 kallsyms_token_index[] __attribute__((weak));
extern const u8 kallsyms_token_table[] __attribute__((weak));
extern const u16 kallsyms_token_index[] __attribute__((weak));
extern unsigned long kallsyms_markers[] __attribute__((weak));
extern const unsigned long kallsyms_markers[] __attribute__((weak));
static inline int is_kernel_inittext(unsigned long addr)
{
@ -84,7 +84,7 @@ static int is_ksym_addr(unsigned long addr)
static unsigned int kallsyms_expand_symbol(unsigned int off, char *result)
{
int len, skipped_first = 0;
u8 *tptr, *data;
const u8 *tptr, *data;
/* get the compressed symbol length from the first symbol byte */
data = &kallsyms_names[off];
@ -132,7 +132,7 @@ static char kallsyms_get_symbol_type(unsigned int off)
* kallsyms array */
static unsigned int get_symbol_offset(unsigned long pos)
{
u8 *name;
const u8 *name;
int i;
/* use the closest marker we have. We have markers every 256 positions,

2
scripts/kallsyms.c
View File

@ -265,7 +265,7 @@ static void write_src(void)
printf("#define ALGN .align 4\n");
printf("#endif\n");
printf(".data\n");
printf("\t.section .rodata, \"a\"\n");
/* Provide proper symbols relocatability by their '_text'
* relativeness. The symbol names cannot be used to construct