mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-14 07:10:05 +00:00
ea78d8fa65
[BZ #933] * sysdeps/unix/sysv/linux/mips/brk.c (__brk): Load the number of the syscall immediately before invocation. * sysdeps/unix/sysv/linux/mips/mips64/n64/ioctl.S (__ioctl): Likewise. * sysdeps/unix/sysv/linux/mips/mips64/syscall.S (syscall): Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n64/ioctl.S (__ioctl): Use macros to handle GP. * sysdeps/unix/sysv/linux/mips/mips64/syscall.S (syscall): Likewise. Update inaccurate comments.
61 lines
1.5 KiB
ArmAsm
61 lines
1.5 KiB
ArmAsm
/* Copyright (C) 2001, 2002, 2003, 2005 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, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#include <sysdep.h>
|
|
|
|
#include <sys/asm.h>
|
|
|
|
/* Usage:
|
|
long syscall (syscall_number, arg1, arg2, arg3, arg4, arg5, arg6, arg7)
|
|
|
|
We need to do some arg shifting, syscall_number will be in v0. */
|
|
|
|
|
|
.text
|
|
NESTED (syscall, SZREG, ra)
|
|
.mask 0x00010000, -SZREG
|
|
.fmask 0x00000000, 0
|
|
PTR_ADDIU sp, -SZREG
|
|
REG_S s0, (sp)
|
|
|
|
move s0, a0
|
|
move a0, a1 /* shift arg1 - arg7. */
|
|
move a1, a2
|
|
move a2, a3
|
|
move a3, a4
|
|
move a4, a5
|
|
move a5, a6
|
|
move a6, a7
|
|
|
|
move v0, s0 /* Syscall number -> v0 */
|
|
syscall /* Do the system call. */
|
|
|
|
REG_L s0, (sp)
|
|
PTR_ADDIU sp, SZREG
|
|
bne a3, zero, L(error)
|
|
|
|
ret
|
|
|
|
L(error):
|
|
SETUP_GP64 (a0, syscall)
|
|
PTR_LA t9, __syscall_error
|
|
RESTORE_GP64
|
|
jr t9
|
|
|
|
END (syscall)
|