Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Move detection of a special symbol into a separate function. Add some more 

special symbols.
This commit is contained in:
matt 2004-02-19 03:42:01 +00:00
parent 8012158924
commit cb57c6f8e9
1 changed files with 19 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
sys/kern/kern_ksyms.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: kern_ksyms.c,v 1.20 2004/02/18 23:44:49 matt Exp $ */
/* $NetBSD: kern_ksyms.c,v 1.21 2004/02/19 03:42:01 matt Exp $ */
/*
* Copyright (c) 2001, 2003 Anders Magnusson (ragge@ludd.luth.se).
* All rights reserved.
@ -46,7 +46,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: kern_ksyms.c,v 1.20 2004/02/18 23:44:49 matt Exp $");
__KERNEL_RCSID(0, "$NetBSD: kern_ksyms.c,v 1.21 2004/02/19 03:42:01 matt Exp $");
#ifdef _KERNEL
#include "opt_ddb.h"
@ -668,6 +668,21 @@ addsym(struct syminfo *info, const Elf_Sym *sym, const char *name,
* New memory for keeping the symbol table is allocated in this function.
* Returns 0 if success and EEXIST if the module name is in use.
*/
static int
specialsym(const char *symname)
{
return !strcmp(symname, "_bss_start") ||
!strcmp(symname, "__bss_start") ||
!strcmp(symname, "_bss_end__") ||
!strcmp(symname, "__bss_end__") ||
!strcmp(symname, "_edata") ||
!strcmp(symname, "_end") ||
!strcmp(symname, "__end") ||
!strcmp(symname, "__end__") ||
!strncmp(symname, "__start_link_set_", 17) ||
!strncmp(symname, "__stop_link_set_", 16);
}
int
ksyms_addsymtab(const char *mod, void *symstart, vsize_t symsize,
char *strstart, vsize_t strsize)
@ -721,11 +736,7 @@ ksyms_addsymtab(const char *mod, void *symstart, vsize_t symsize,
&rval, KSYMS_EXTERN) == 0) {
/* Check (and complain) about differing values */
if (sym[i].st_value != rval) {
if (!strcmp(symname, "__bss_start") ||
!strcmp(symname, "_edata") ||
!strcmp(symname, "_end") ||
!strncmp(symname, "__start_link_set_",17) ||
!strncmp(symname, "__stop_link_set_",16)) {
if (specialsym(symname)) {
info.maxsyms++;
info.maxnamep += strlen(symname) + 1 +
strlen(mod) + 1;
@ -768,12 +779,7 @@ ksyms_addsymtab(const char *mod, void *symstart, vsize_t symsize,
/* Check if the symbol exists */
if (ksyms_getval_from_kernel(NULL, symname,
&rval, KSYMS_EXTERN) == 0) {
if ((sym[i].st_value != rval) &&
(!strcmp(symname, "__bss_start") ||
!strcmp(symname, "_edata") ||
!strcmp(symname, "_end") ||
!strncmp(symname, "__start_link_set_",17) ||
!strncmp(symname, "__stop_link_set_",16))) {
if ((sym[i].st_value != rval) && specialsym(symname)) {
addsym(&info, &sym[i], symname, mod);
}
} else