mirror of
https://sourceware.org/git/glibc.git
synced 2025-10-30 10:45:40 +03:00
2ad7600be7
I've moved the MIPS port from ports to the main sysdeps hierarchy. Beyond the README update, the move of the files was simply git mv ports/sysdeps/mips sysdeps/mips git mv ports/sysdeps/unix/mips sysdeps/unix/mips git mv ports/sysdeps/unix/sysv/linux/mips sysdeps/unix/sysv/linux/mips and in addition to the ChangeLog entries here, I put a note at the top of ports/ChangeLog.mips similar to those in other files. Tested that disassembly of installed shared libraries for mips is the same before and after this patch (except for ld.so where paths in assertions are involved, as for arm). * sysdeps/mips: Move directory from ports/sysdeps/mips. * sysdeps/unix/mips: Move directory from ports/sysdeps/unix/mips. * sysdeps/unix/sysv/linux/mips: Move directory from ports/sysdeps/unix/sysv/linux/mips. * README: Update listing for mips-*-linux-gnu and mips64-*-linux-gnu. * sysdeps/mips: Move directory to ../sysdeps/mips. * sysdeps/unix/mips: Move directory to ../sysdeps/unix/mips. * sysdeps/unix/sysv/linux/mips: Move directory to ../sysdeps/unix/sysv/linux/mips.
103 lines
2.1 KiB
ArmAsm
103 lines
2.1 KiB
ArmAsm
/* Copyright (C) 2005-2014 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/>. */
|
|
|
|
/* vfork() is just a special case of clone(). */
|
|
|
|
#include <sys/asm.h>
|
|
#include <sysdep.h>
|
|
#include <asm/unistd.h>
|
|
#include <sgidefs.h>
|
|
|
|
#ifndef SAVE_PID
|
|
#define SAVE_PID
|
|
#endif
|
|
|
|
#ifndef RESTORE_PID
|
|
#define RESTORE_PID
|
|
#endif
|
|
|
|
|
|
/* int vfork() */
|
|
|
|
.text
|
|
.set nomips16
|
|
LOCALSZ= 1
|
|
FRAMESZ= (((NARGSAVE+LOCALSZ)*SZREG)+ALSZ)&ALMASK
|
|
GPOFF= FRAMESZ-(1*SZREG)
|
|
NESTED(__vfork,FRAMESZ,sp)
|
|
#ifdef __PIC__
|
|
SETUP_GP
|
|
#endif
|
|
PTR_SUBU sp, FRAMESZ
|
|
cfi_adjust_cfa_offset (FRAMESZ)
|
|
SETUP_GP64_REG (a5, __vfork)
|
|
#ifdef __PIC__
|
|
SAVE_GP (GPOFF)
|
|
#endif
|
|
#ifdef PROF
|
|
# if (_MIPS_SIM != _ABIO32)
|
|
PTR_S a5, GPOFF(sp)
|
|
# endif
|
|
.set noat
|
|
move $1, ra
|
|
# if (_MIPS_SIM == _ABIO32)
|
|
subu sp,sp,8
|
|
# endif
|
|
jal _mcount
|
|
.set at
|
|
# if (_MIPS_SIM != _ABIO32)
|
|
PTR_L a5, GPOFF(sp)
|
|
# endif
|
|
#endif
|
|
|
|
PTR_ADDU sp, FRAMESZ
|
|
cfi_adjust_cfa_offset (-FRAMESZ)
|
|
|
|
SAVE_PID
|
|
|
|
li a0, 0x4112 /* CLONE_VM | CLONE_VFORK | SIGCHLD */
|
|
move a1, sp
|
|
|
|
/* Do the system call */
|
|
li v0,__NR_clone
|
|
syscall
|
|
|
|
RESTORE_PID
|
|
|
|
cfi_remember_state
|
|
bnez a3,L(error)
|
|
|
|
/* Successful return from the parent or child. */
|
|
RESTORE_GP64_REG
|
|
ret
|
|
|
|
/* Something bad happened -- no child created. */
|
|
L(error):
|
|
cfi_restore_state
|
|
#ifdef __PIC__
|
|
PTR_LA t9, __syscall_error
|
|
RESTORE_GP64_REG
|
|
jr t9
|
|
#else
|
|
RESTORE_GP64_REG
|
|
j __syscall_error
|
|
#endif
|
|
END(__vfork)
|
|
|
|
libc_hidden_def(__vfork)
|
|
weak_alias (__vfork, vfork)
|