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Raghu Gandham405b8022012-07-25 18:16:42 -07001/*
Chris Dearman645d0312014-02-05 18:51:43 -08002 * Copyright (C) 2013 The Android Open Source Project
Raghu Gandham405b8022012-07-25 18:16:42 -07003 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in
12 * the documentation and/or other materials provided with the
13 * distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
Raghu Gandham405b8022012-07-25 18:16:42 -070028
Elliott Hughes851e68a2014-02-19 16:53:20 -080029#include <private/bionic_asm.h>
Chris Dearman645d0312014-02-05 18:51:43 -080030
31#if (_MIPS_SIM == _ABIO32) || (_MIPS_SIM == _ABI32)
32FRAMESZ = MKFSIZ(6,0)
33#else
34FRAMESZ = MKFSIZ(0,1)
35FRAME_GP = FRAMESZ-1*REGSZ
36#endif
37
38LEAF(syscall,FRAMESZ)
39 PTR_SUBU sp, FRAMESZ # allocate stack frame
40 SETUP_GP64(FRAME_GP,syscall)
41 SAVE_GP(FRAME_GP)
42 move v0, a0 # syscall number to v0
43 move a0, a1 # shift args down
44 move a1, a2
45 move a2, a3
46#if (_MIPS_SIM == _ABIO32) || (_MIPS_SIM == _ABI32)
47 REG_L a3, FRAMESZ+4*REGSZ(sp)
48 REG_L t0, FRAMESZ+5*REGSZ(sp)
49 REG_L t1, FRAMESZ+6*REGSZ(sp)
50 REG_S t0, 4*REGSZ(sp)
51 REG_S t1, 5*REGSZ(sp)
52#else
53 move a3, a4
54 move a4, a5
55 REG_L a5, FRAMESZ(sp)
56#endif
57 syscall
58 move a0, v0
59 bnez a3, 1f
60 RESTORE_GP64
61 PTR_ADDU sp, FRAMESZ
62 j ra
631:
64 LA t9,__set_errno
65 RESTORE_GP64
66 PTR_ADDU sp, FRAMESZ
67 j t9
68 END(syscall)