glibc/sysdeps/unix/sysv/linux/alpha/sigsuspend.S
Roland McGrath 0a4dc0f10b Mon Mar 4 20:17:28 1996 David Mosberger-Tang <davidm@azstarnet.com>
* sysdeps/unix/sysv/linux/alpha/sigsuspend.S: new file (syscall
 	expects set-value, not pointer to it).
1996-03-19 19:52:29 +00:00

40 lines
1.1 KiB
ArmAsm

/* Copyright (C) 1993, 1995 Free Software Foundation, Inc.
Contributed by David Mosberger (davidm@cs.arizona.edu).
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
/* sigsuspend is a special syscall since it needs to dereference the
sigset. */
#include <sysdep.h>
.text
ENTRY(sigsuspend)
.prologue 0
ldq a0, 0(a0)
ldi v0, __NR_sigsuspend
call_pal PAL_callsys
bne a3, error
ret
error: br gp, 1f
1: ldgp gp, 0(gp)
lda pv, syscall_error
jmp zero, (pv)
.end sigsuspend