diff options
Diffstat (limited to 'REORG.TODO/sysdeps/unix/sysv/linux/ia64/vfork.S')
| -rw-r--r-- | REORG.TODO/sysdeps/unix/sysv/linux/ia64/vfork.S | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/ia64/vfork.S b/REORG.TODO/sysdeps/unix/sysv/linux/ia64/vfork.S new file mode 100644 index 0000000000..64fca5912f --- /dev/null +++ b/REORG.TODO/sysdeps/unix/sysv/linux/ia64/vfork.S @@ -0,0 +1,50 @@ +/* Copyright (C) 2000-2017 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, see + <http://www.gnu.org/licenses/>. */ + + +#include <sysdep.h> +#define _SIGNAL_H +#include <bits/signum.h> +#include <tcb-offsets.h> + +/* 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 (__libc_vfork) + .prologue // work around a GAS bug which triggers if + .body // first .prologue is not at the beginning of proc. + alloc r2=ar.pfs,0,0,2,0 + mov out0=CLONE_VM+CLONE_VFORK+SIGCHLD + mov out1=0 /* Standard sp value. */ + ;; + DO_CALL (SYS_ify (clone)) + cmp.eq p6,p0=0,r8 +(p6) br.cond.dptk 1f +1: + cmp.eq p6,p0=-1,r10 +(p6) br.cond.spnt.few __syscall_error + ret +PSEUDO_END (__libc_vfork) + +strong_alias (__libc_vfork, __vfork) +libc_hidden_def (__vfork) +weak_alias (__vfork, vfork) |