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/* $NetBSD: brk.S,v 1.5 2014/08/23 02:24:22 matt Exp $ */
#include "SYS.h"
.hidden _C_LABEL(__curbrk)
.globl _C_LABEL(__curbrk)
.hidden _C_LABEL(__minbrk)
.globl _C_LABEL(__minbrk)
.globl _C_LABEL(_end)
#ifdef WEAK_ALIAS
WEAK_ALIAS(brk, _brk)
#endif
.data
.p2align 3
_C_LABEL(__minbrk):
.quad _C_LABEL(_end)
_C_LABEL(__curbrk):
.quad _C_LABEL(_end)
ENTRY(_brk)
addis %r9,%r2,_C_LABEL(__minbrk)@toc@ha
ldptru %r5,_C_LABEL(__minbrk)@toc@l(%r9)
cmpptrl %r5,%r3 # if (__minbrk <= r3)
#ifdef __PPC_ISEL__
iselgt %r3,%r5,%r3
#else
bgt 0f
mr %r5,%r3 # r5 = r3
0:
mr %r3,%r5 # new break value
#endif
_DOSYSCALL(break) # assume that r5 is preserved
bso 1f
stptr %r5,__SIZEOF_POINTER__(%r9)
blr # return 0
1:
BRANCH_TO_CERROR()
END(_brk)
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