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/* $NetBSD: sbrk.S,v 1.13 2014/08/23 02:24:22 matt Exp $ */
#include "SYS.h"
#if defined(LIBC_SCCS) && !defined(lint)
__RCSID("$NetBSD: sbrk.S,v 1.13 2014/08/23 02:24:22 matt Exp $")
#endif /* LIBC_SCCS && !lint */
.hidden _C_LABEL(__curbrk)
.globl _C_LABEL(__curbrk)
#ifdef WEAK_ALIAS
WEAK_ALIAS(sbrk, _sbrk)
#endif
ENTRY(_sbrk)
#ifdef __PIC__
mflr %r0
bcl 20,31,.LPIC0
.LPIC0: mflr %r5
mtlr %r0
addis %r8,%r5,(_C_LABEL(__curbrk)-.LPIC0)@ha
ldptru %r6,(_C_LABEL(__curbrk)-.LPIC0)@l(%r8)
#else
lis %r8,_C_LABEL(__curbrk)@ha
ldptru %r6,_C_LABEL(__curbrk)@l(%r8) # r6 = old break, r5 = &curbrk
#endif
add %r3,%r3,%r6
mr %r7,%r3 # r7 = new break
_DOSYSCALL(break) # break(new_break)
bso 1f
mr %r3,%r6 # set return value
stptr %r7,0(%r8) # record new break
blr
1:
BRANCH_TO_CERROR()
END(_sbrk)
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