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cmd/ld: support 2 byte relocations 

ppc64 has a bunch of these.

Change-Id: I3b93ed2bae378322a8dec036b1681e520b56ff53
Reviewed-on: https://go-review.googlesource.com/2003
Reviewed-by: Russ Cox <rsc@golang.org>
Reviewed-by: Minux Ma <minux@golang.org>
This commit is contained in:
Austin Clements 2014-12-16 14:12:01 -05:00
parent e32fe2049d
commit fcdffb3f33
2 changed files with 11 additions and 0 deletions
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9
src/cmd/ld/data.c
View File

@ -132,6 +132,7 @@ relocsym(LSym *s)
{
Reloc *r;
LSym *rs;
int16 i16;
int32 i, off, siz, fl;
vlong o;
uchar *cast;
@ -317,6 +318,14 @@ relocsym(LSym *s)
// TODO(rsc): Remove.
s->p[off] = (int8)o;
break;
case 2:
if(o != (int16)o)
diag("relocation address is too big: %#llx", o);
i16 = o;
cast = (uchar*)&i16;
for(i=0; i<2; i++)
s->p[off+i] = cast[inuxi2[i]];
break;
case 4:
if(r->type == R_PCREL || r->type == R_CALL) {
if(o != (int32)o)

2
src/cmd/ld/ldelf.c
View File

@ -721,6 +721,8 @@ ldelf(Biobuf *f, char *pkg, int64 len, char *pn)
else
diag("invalid rela size %d", rp->siz);
}
if(rp->siz == 2)
rp->add = (int16)rp->add;
if(rp->siz == 4)
rp->add = (int32)rp->add;
//print("rel %s %d %d %s %#llx\n", sect->sym->name, rp->type, rp->siz, rp->sym->name, rp->add);