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59 lines
1.6 KiB
ArmAsm
59 lines
1.6 KiB
ArmAsm
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/* brk system call for Linux/ia64
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Copyright (C) 1999, 2000 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Written by Stephane Eranian <eranian@hpl.hp.com> and
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Jes Sorensen, <Jes.Sorensen@cern.ch>, April 1999.
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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 <asm/unistd.h>
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#include <asm/errno.h>
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.text
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.psr abi64
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.psr lsb
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.lsb
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.global __curbrk
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.data
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.align 8
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__curbrk:
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data8 0
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.weak ___brk_addr
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___brk_addr = __curbrk
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.text
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.align 16
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.global __brk
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.proc __brk
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__brk:
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mov r15=__NR_brk
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break.i __BREAK_SYSCALL
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;;
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cmp.ltu p6,p0=ret0,r32 /* r32 is the input register, even though we
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haven't allocated a frame */
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addl r9=@ltoff(__curbrk#),gp
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;;
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ld8 r9=[r9]
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(p6) mov ret0=ENOMEM
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(p6) br.cond.spnt.few __syscall_error
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;;
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st8 [r9]=ret0
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mov ret0=0
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br.ret.sptk.few rp
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.endp __brk
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.weak brk
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brk = __brk
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