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Ignore REL/RELA if they aren't against a PROGBIT section.

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(this causes EXIDX sections to be ignored for ARM).
This commit is contained in:
matt 2013-08-09 05:10:14 +00:00
parent bbc97ae36e
commit a95f2fdeea
1 changed files with 25 additions and 8 deletions
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33
sys/kern/subr_kobj.c
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@ -1,4 +1,4 @@
/* $NetBSD: subr_kobj.c,v 1.45 2012/12/30 20:52:20 pooka Exp $ */
/* $NetBSD: subr_kobj.c,v 1.46 2013/08/09 05:10:14 matt Exp $ */
/*-
* Copyright (c) 2008 The NetBSD Foundation, Inc.
@ -63,7 +63,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: subr_kobj.c,v 1.45 2012/12/30 20:52:20 pooka Exp $");
__KERNEL_RCSID(0, "$NetBSD: subr_kobj.c,v 1.46 2013/08/09 05:10:14 matt Exp $");
#include "opt_modular.h"
@ -257,9 +257,13 @@ kobj_load(kobj_t ko)
symstrindex = shdr[i].sh_link;
break;
case SHT_REL:
if (shdr[shdr[i].sh_info].sh_type != SHT_PROGBITS)
continue;
ko->ko_nrel++;
break;
case SHT_RELA:
if (shdr[shdr[i].sh_info].sh_type != SHT_PROGBITS)
continue;
ko->ko_nrela++;
break;
case SHT_STRTAB:
@ -488,6 +492,8 @@ kobj_load(kobj_t ko)
pb++;
break;
case SHT_REL:
if (shdr[shdr[i].sh_info].sh_type != SHT_PROGBITS)
break;
ko->ko_reltab[rl].size = shdr[i].sh_size;
ko->ko_reltab[rl].size -=
shdr[i].sh_size % sizeof(Elf_Rel);
@ -508,6 +514,8 @@ kobj_load(kobj_t ko)
rl++;
break;
case SHT_RELA:
if (shdr[shdr[i].sh_info].sh_type != SHT_PROGBITS)
break;
ko->ko_relatab[ra].size = shdr[i].sh_size;
ko->ko_relatab[ra].size -=
shdr[i].sh_size % sizeof(Elf_Rela);
@ -532,16 +540,21 @@ kobj_load(kobj_t ko)
}
}
if (pb != ko->ko_nprogtab) {
panic("lost progbits");
panic("%s:%d: %s: lost progbits", __func__, __LINE__,
ko->ko_name);
}
if (rl != ko->ko_nrel) {
panic("lost rel");
panic("%s:%d: %s: lost rel", __func__, __LINE__,
ko->ko_name);
}
if (ra != ko->ko_nrela) {
panic("lost rela");
panic("%s:%d: %s: lost rela", __func__, __LINE__,
ko->ko_name);
}
if (ko->ko_type != KT_MEMORY && mapbase != ko->ko_address + mapsize) {
panic("mapbase 0x%lx != address %lx + mapsize %ld (0x%lx)\n",
panic("%s:%d: %s: "
"mapbase 0x%lx != address %lx + mapsize %ld (0x%lx)\n",
__func__, __LINE__, ko->ko_name,
(long)mapbase, (long)ko->ko_address, (long)mapsize,
(long)ko->ko_address + mapsize);
}
@ -929,7 +942,9 @@ kobj_relocate(kobj_t ko, bool local)
rellim = rel + ko->ko_reltab[i].nrel;
base = kobj_findbase(ko, ko->ko_reltab[i].sec);
if (base == 0) {
panic("lost base for e_reltab");
panic("%s:%d: %s: lost base for e_reltab[%d] sec %d",
__func__, __LINE__, ko->ko_name, i,
ko->ko_reltab[i].sec);
}
for (; rel < rellim; rel++) {
symidx = ELF_R_SYM(rel->r_info);
@ -958,7 +973,9 @@ kobj_relocate(kobj_t ko, bool local)
relalim = rela + ko->ko_relatab[i].nrela;
base = kobj_findbase(ko, ko->ko_relatab[i].sec);
if (base == 0) {
panic("lost base for e_relatab");
panic("%s:%d: %s: lost base for e_relatab[%d] sec %d",
__func__, __LINE__, ko->ko_name, i,
ko->ko_relatab[i].sec);
}
for (; rela < relalim; rela++) {
symidx = ELF_R_SYM(rela->r_info);