From c429bf3057c87dd9545fc2d824b5930c52f7dfb8 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Sat, 4 Feb 2006 01:20:54 +0000 Subject: import files from glibc for an ia64/static port --- libc/sysdeps/linux/ia64/vfork.S | 44 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 libc/sysdeps/linux/ia64/vfork.S (limited to 'libc/sysdeps/linux/ia64/vfork.S') diff --git a/libc/sysdeps/linux/ia64/vfork.S b/libc/sysdeps/linux/ia64/vfork.S new file mode 100644 index 000000000..ab29f6287 --- /dev/null +++ b/libc/sysdeps/linux/ia64/vfork.S @@ -0,0 +1,44 @@ +/* Copyright (C) 2000, 2002 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + + +#include "sysdep.h" +#define _SIGNAL_H +#include + +/* The following are defined in linux/sched.h, which unfortunately */ +/* is not safe for inclusion in an assembly file. */ +#define CLONE_VM 0x00000100 /* set if VM shared between processes */ +#define CLONE_VFORK 0x00004000 /* set if the parent wants the child to wake it up on mm_release */ + +/* pid_t vfork(void); */ +/* Implemented as __clone_syscall(CLONE_VFORK | CLONE_VM | SIGCHLD, 0) */ + +ENTRY(__vfork) + alloc r2=ar.pfs,0,0,2,0 + mov out0=CLONE_VM+CLONE_VFORK+SIGCHLD + mov out1=0 /* Standard sp value. */ + ;; + DO_CALL_VIA_BREAK (SYS_ify (clone)) + cmp.eq p6,p0=-1,r10 +(p6) br.cond.spnt.few __syscall_error + ret +PSEUDO_END(__vfork) +libc_hidden_def (__vfork) + +weak_alias (__vfork, vfork) -- cgit v1.2.3