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266227abcb
2003-03-27 David Mosberger <davidm@hpl.hp.com> * sysdeps/ia64/dl-machine.h (RTLD_START): Wrap ".save rp, r0" directive into empty .prologue region to ensure that call-chain is terminated even for the first instruction. * sysdeps/ia64/elf/start.S (_start): Use ".save rp, r0" idiom to terminate call-chain right from the get-go. * sysdeps/unix/sysv/linux/ia64/fork.S (fork): Remove unnecessary stop bit between compare & branch.
42 lines
1.4 KiB
ArmAsm
42 lines
1.4 KiB
ArmAsm
/* Copyright (C) 2000, 2002 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 Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the 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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <sysdep.h>
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#define _SIGNAL_H
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#include <bits/signum.h>
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/* pid_t fork(void); */
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/* Implemented as a clone system call with parameters SIGCHLD and 0 */
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ENTRY(__libc_fork)
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alloc r2=ar.pfs,0,0,2,0
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mov out0=SIGCHLD /* Return SIGCHLD when child finishes */
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/* no other clone flags; nothing shared */
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mov out1=0 /* Standard sp value. */
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;;
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DO_CALL (SYS_ify (clone))
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cmp.eq p6,p0=-1,r10
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(p6) br.cond.spnt.few __syscall_error
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ret
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PSEUDO_END(__libc_fork)
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weak_alias (__libc_fork, __fork)
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libc_hidden_def (__fork)
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weak_alias (__libc_fork, fork)
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