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Do not try to enter more than MAX_INT16 symbols into the patricia tree; 

the not-entered symbols will be found anyway but via a linear-search.
This only happens if something is wrong when linking the kernel.
Fixes problems reported on port-hp700.
This commit is contained in:
ragge 2003-11-06 18:22:01 +00:00
parent 9acc1a6c3b
commit c556165f92
1 changed files with 9 additions and 4 deletions
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13
sys/kern/kern_ksyms.c
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@ -1,4 +1,4 @@
/* $NetBSD: kern_ksyms.c,v 1.15 2003/10/25 09:03:59 christos Exp $ */
/* $NetBSD: kern_ksyms.c,v 1.16 2003/11/06 18:22:01 ragge 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 1.15 2003/10/25 09:03:59 christos Exp $");
__KERNEL_RCSID(0, "$NetBSD: kern_ksyms.c,v 1.16 2003/11/06 18:22:01 ragge Exp $");
#ifdef _KERNEL
#include "opt_ddb.h"
@ -241,7 +241,7 @@ static void
ptree_gen(char *off, struct symtab *tab)
{
Elf_Sym *sym;
int i;
int i, nsym;
if (off != NULL)
symb = (struct ptree *)ALIGN(off);
@ -251,7 +251,12 @@ ptree_gen(char *off, struct symtab *tab)
symb--; /* sym index won't be 0 */
sym = tab->sd_symstart;
for (i = 1; i < tab->sd_symsize/sizeof(Elf_Sym); i++) {
if ((nsym = tab->sd_symsize/sizeof(Elf_Sym)) > INT16_MAX) {
printf("Too many symbols for tree, skipping %d symbols\n",
nsym-INT16_MAX);
nsym = INT16_MAX;
}
for (i = 1; i < nsym; i++) {
if (ELF_ST_BIND(sym[i].st_info) != STB_GLOBAL)
continue;
ptree_add(tab->sd_strstart+sym[i].st_name, i);