diff options
| author | gkoehler <gkoehler@cvs.openbsd.org> | 2020-07-27 05:08:58 +0000 |
|---|---|---|
| committer | gkoehler <gkoehler@cvs.openbsd.org> | 2020-07-27 05:08:58 +0000 |
| commit | 9212e01b6d2268752aa9967e695397d330f58cff (patch) | |
| tree | c35520b54deb18f235dd506e8ae64c87fd94e816 /lib | |
| parent | b146a3f4ae94f393e8f6e60b013d60575a815496 (diff) | |
Fix powerpc64's sbrk()
Initialize __curbrk = &_end.
It's a 64-bit pointer, so use ld/std instead of lwz/stw.
ok drahn@
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libc/arch/powerpc64/sys/sbrk.S | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/lib/libc/arch/powerpc64/sys/sbrk.S b/lib/libc/arch/powerpc64/sys/sbrk.S index c08cb67c591..9d738f44749 100644 --- a/lib/libc/arch/powerpc64/sys/sbrk.S +++ b/lib/libc/arch/powerpc64/sys/sbrk.S @@ -1,4 +1,4 @@ -/* $OpenBSD: sbrk.S,v 1.2 2020/06/26 10:31:44 kettenis Exp $ */ +/* $OpenBSD: sbrk.S,v 1.3 2020/07/27 05:08:57 gkoehler Exp $ */ /* * Copyright (c) 1996 Dale Rahn @@ -28,9 +28,11 @@ #include "SYS.h" .data + .globl _end .globl __curbrk .hidden __curbrk __curbrk: + .quad _end END(__curbrk) .type __curbrk,@object @@ -42,7 +44,7 @@ PSEUDO_PREFIX(,sbrk,break) addis %r6, %r2, __curbrk@toc@ha addi %r6, %r6, __curbrk@toc@l /* # %r6 = &__curbrk */ - lwz %r5, 0(%r6) /* # %r5 = *%r6 (old_curbrk) */ + ld %r5, 0(%r6) /* # %r5 = *%r6 (old_curbrk) */ add %r3, %r5, %r3 /* # %r3 = new_curbrk */ mr %r7, %r3 @@ -57,7 +59,7 @@ PSEUDO_PREFIX(,sbrk,break) /* update, __curbrk and return */ .L_sbrk_ok: - stw %r7, 0(%r6) /* # remember, %r6=&__curbrk, %r7=new_curbrk */ + std %r7, 0(%r6) /* # remember, %r6=&__curbrk, %r7=new_curbrk */ mr %r3, %r5 /* # remember, %r5=old_curbrk */ blr END(sbrk) |