1 /* 2 * Copyright (C) 2013 The Android Open Source Project 3 * 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 */ 28 29 #include <private/bionic_asm.h> 30 31 #if (_MIPS_SIM == _ABIO32) || (_MIPS_SIM == _ABI32) 32 FRAMESZ = MKFSIZ(6,0) 33 #else 34 FRAMESZ = MKFSIZ(0,1) 35 FRAME_GP = FRAMESZ-1*REGSZ 36 #endif 37 38 LEAF(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 move a5, a6 56 #endif 57 syscall 58 move a0, v0 59 bnez a3, 1f 60 RESTORE_GP64 61 PTR_ADDU sp, FRAMESZ 62 j ra 63 1: 64 LA t9,__set_errno_internal 65 RESTORE_GP64 66 PTR_ADDU sp, FRAMESZ 67 j t9 68 END(syscall) 69
