Blame sysdeps/unix/sysv/linux/sh/pipe.S

Packit 6c4009
/* Copyright (C) 1999-2018 Free Software Foundation, Inc.
Packit 6c4009
   This file is part of the GNU C Library.
Packit 6c4009
Packit 6c4009
   The GNU C Library is free software; you can redistribute it and/or
Packit 6c4009
   modify it under the terms of the GNU Lesser General Public
Packit 6c4009
   License as published by the Free Software Foundation; either
Packit 6c4009
   version 2.1 of the License, or (at your option) any later version.
Packit 6c4009
Packit 6c4009
   The GNU C Library is distributed in the hope that it will be useful,
Packit 6c4009
   but WITHOUT ANY WARRANTY; without even the implied warranty of
Packit 6c4009
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Packit 6c4009
   Lesser General Public License for more details.
Packit 6c4009
Packit 6c4009
   You should have received a copy of the GNU Lesser General Public
Packit 6c4009
   License along with the GNU C Library; if not, see
Packit 6c4009
   <http://www.gnu.org/licenses/>.  */
Packit 6c4009
Packit 6c4009
#include <sysdep.h>
Packit 6c4009
Packit 6c4009
ENTRY (__libc_pipe)
Packit 6c4009
	mov	#+__NR_pipe, r3
Packit 6c4009
	trapa	#0x10
Packit 6c4009
	mov     r0, r3
Packit 6c4009
	mov	#-12, r2
Packit 6c4009
	shad	r2, r3
Packit 6c4009
	not	r3, r3			// r1=0 means r0 = -1 to -4095
Packit 6c4009
	tst	r3, r3			// i.e. error in linux
Packit 6c4009
	bt	1f
Packit 6c4009
	mov.l	r0, @r4
Packit 6c4009
	mov.l	r1, @(4, r4)
Packit 6c4009
	rts
Packit 6c4009
	 mov	#0, r0
Packit 6c4009
1:
Packit 6c4009
	SYSCALL_ERROR_HANDLER
Packit 6c4009
.Lpseudo_end:
Packit 6c4009
	rts
Packit 6c4009
	 nop
Packit 6c4009
PSEUDO_END (__libc_pipe)
Packit 6c4009
Packit 6c4009
weak_alias (__libc_pipe, __pipe)
Packit 6c4009
libc_hidden_def (__pipe)
Packit 6c4009
weak_alias (__libc_pipe, pipe)