50 lines
1.4 KiB
ArmAsm
50 lines
1.4 KiB
ArmAsm
/* brk system call for Linux/ppc.
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Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <sysdep.h>
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#define _ERRNO_H 1
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#include <bits/errno.h>
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.comm __curbrk,4,4
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.section ".text"
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ENTRY(__brk)
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stwu %r1,-16(%r1)
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stw %r3,8(%r1)
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DO_CALL(SYS_ify(brk))
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lwz %r6,8(%r1)
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#ifdef PIC
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mflr %r4
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bl _GLOBAL_OFFSET_TABLE_@local-4
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mflr %r5
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lwz %r5,__curbrk@got(%r5)
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mtlr %r4
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stw %r3,0(%r5)
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#else
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stw %r3,__curbrk@sdarel(%r13)
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#endif
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cmplw %r6,%r3
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addi %r1,%r1,16
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li %r3,0
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blelr+
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li %r3,ENOMEM
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b JUMPTARGET(__syscall_error)
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END (__brk)
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weak_alias (__brk, brk)
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