platform_bionic/libc/arch-mips64/bionic/syscall.S
Elliott Hughes 851e68a240 Unify our assembler macros.
Our <machine/asm.h> files were modified from upstream, to the extent
that no architecture was actually using the upstream ENTRY or END macros,
assuming that architecture even had such a macro upstream. This patch moves
everyone to the same macros, with just a few tweaks remaining in the
<machine/asm.h> files, which no one should now use directly.

I've removed most of the unused cruft from the <machine/asm.h> files, though
there's still rather a lot in the mips/mips64 ones.

Bug: 12229603
Change-Id: I2fff287dc571ac1087abe9070362fb9420d85d6d
2014-02-20 13:51:26 -08:00

68 lines
2.1 KiB
ArmAsm

/*
* Copyright (C) 2013 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <private/bionic_asm.h>
#if (_MIPS_SIM == _ABIO32) || (_MIPS_SIM == _ABI32)
FRAMESZ = MKFSIZ(6,0)
#else
FRAMESZ = MKFSIZ(0,1)
FRAME_GP = FRAMESZ-1*REGSZ
#endif
LEAF(syscall,FRAMESZ)
PTR_SUBU sp, FRAMESZ # allocate stack frame
SETUP_GP64(FRAME_GP,syscall)
SAVE_GP(FRAME_GP)
move v0, a0 # syscall number to v0
move a0, a1 # shift args down
move a1, a2
move a2, a3
#if (_MIPS_SIM == _ABIO32) || (_MIPS_SIM == _ABI32)
REG_L a3, FRAMESZ+4*REGSZ(sp)
REG_L t0, FRAMESZ+5*REGSZ(sp)
REG_L t1, FRAMESZ+6*REGSZ(sp)
REG_S t0, 4*REGSZ(sp)
REG_S t1, 5*REGSZ(sp)
#else
move a3, a4
move a4, a5
REG_L a5, FRAMESZ(sp)
#endif
syscall
move a0, v0
bnez a3, 1f
RESTORE_GP64
PTR_ADDU sp, FRAMESZ
j ra
1:
LA t9,__set_errno
RESTORE_GP64
PTR_ADDU sp, FRAMESZ
j t9
END(syscall)