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/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <features.h>
#include <sys/asm.h>
#include <sys/regdef.h>
#ifdef __PIC__
.option pic2
#endif
.text
.align 2
.globl syscall
.type syscall,@function
.ent syscall
syscall:
#ifdef __PIC__
SETUP_GP
#endif
move v0, a0 /* Load system call number from first arg. */
move a0, a1 /* Move the next three args up a register. */
move a1, a2
move a2, a3
/* Load the remaining possible args (up to 7) from the stack. */
#ifdef __mips64
move a3, a4
move a4, a5
move a5, a6
move a6, a7
daddiu sp,sp,-16
sd v0,0*8(sp)
ld v0,0*8(sp) /* for system call restarts */
#else
lw a3,4*4(sp)
lw t0,5*4(sp)
lw t1,6*4(sp)
lw t2,7*4(sp)
addiu sp,sp,-32
sw t0,4*4(sp)
sw t1,5*4(sp)
sw t2,6*4(sp)
sw v0,7*4(sp)
lw v0,7*4(sp) /* for system call restarts */
#endif
syscall /* Do the system call. */
#ifdef __mips64
daddiu sp,sp,16
#else
addiu sp,sp,32
#endif
bnez a3, 1f
j ra /* Return to caller. */
1:
move a0,v0 /* Pass return val to C function. */
#ifdef __PIC__
SETUP_GP64(v0, syscall)
PTR_LA t9, __syscall_error
RESTORE_GP64
jr t9
#else
j __syscall_error
#endif
.end syscall
.size syscall,.-syscall
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