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fix smp_lock support

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The initial commit had a bug where the offset field of the
.rela.smp_locks entries was not updated to reflect the correct
offset in the truncated .smp_locks section.

Signed-off-by: Seth Jennings <sjenning@redhat.com>
This commit is contained in:
Seth Jennings 2014-04-25 14:07:51 -05:00
parent 30757f027f
commit e444b2cbb8
1 changed files with 7 additions and 3 deletions
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10
kpatch-build/create-diff-object.c
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@ -1058,7 +1058,7 @@ void kpatch_regenerate_smp_locks_sections(struct kpatch_elf *kelf)
struct section *sec;
struct table table;
struct rela *rela, *dstrela;
int i, nr = 0;
int i, nr = 0, offset = 0;
sec = find_section_by_name(&kelf->sections, ".rela.smp_locks");
if (!sec)
@ -1072,7 +1072,11 @@ void kpatch_regenerate_smp_locks_sections(struct kpatch_elf *kelf)
if (rela->sym->sec->status != SAME) {
log_debug("new/changed symbol %s found in smp locks table\n",
rela->sym->name);
*dstrela++ = *rela;
*dstrela = *rela;
dstrela->offset = offset;
dstrela->rela.r_offset = offset;
dstrela++;
offset += 4;
nr++;
}
}
@ -1098,7 +1102,7 @@ void kpatch_regenerate_smp_locks_sections(struct kpatch_elf *kelf)
sec->data->d_size = sec->sh.sh_entsize * nr;
/* truncate smp_locks section */
sec->base->data->d_size = 4 * nr;
sec->base->data->d_size = offset;
}
void kpatch_create_rela_section(struct section *sec, int link)