Blame sysdeps/unix/sysv/linux/sh/syscall.S
|
Packit |
6c4009 |
/* Copyright (C) 2000-2018 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 (__syscall)
|
|
Packit |
6c4009 |
mov r4, r3 // syscall number
|
|
Packit |
6c4009 |
mov r5, r4 // p1
|
|
Packit |
6c4009 |
mov r6, r5 // p2
|
|
Packit |
6c4009 |
mov r7, r6 // p3
|
|
Packit |
6c4009 |
mov.l @r15, r7 // p4
|
|
Packit |
6c4009 |
mov.l @(4,r15), r0 // p5
|
|
Packit |
6c4009 |
mov.l @(8,r15), r1 // p6
|
|
Packit |
6c4009 |
mov.l @(12,r15), r2 // p7
|
|
Packit |
6c4009 |
trapa #0x17
|
|
Packit |
6c4009 |
mov r0, r1
|
|
Packit |
6c4009 |
mov #-12, r2
|
|
Packit |
6c4009 |
shad r2, r1
|
|
Packit |
6c4009 |
not r1, r1 // r1=0 means r0 = -1 to -4095
|
|
Packit |
6c4009 |
tst r1, r1 // i.e. error in linux
|
|
Packit |
6c4009 |
bf .Lpseudo_end
|
|
Packit |
6c4009 |
SYSCALL_ERROR_HANDLER
|
|
Packit |
6c4009 |
.Lpseudo_end:
|
|
Packit |
6c4009 |
rts
|
|
Packit |
6c4009 |
nop
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
PSEUDO_END (__syscall)
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
weak_alias (__syscall, syscall)
|