mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-16 10:00:12 +00:00
c6481412ff
* configure: Regenerated. * config.h.in (ASM_ALPHA_NG_SYMBOL_PREFIX): Remove #undef. * sysdeps/alpha/dl-machine.h (TRAMPOLINE_TEMPLATE): Use !samegp. (RTLD_START): Likewise. Access _dl_skip_args, _rtld_local, and _dl_fini via gp-relative relocations. * sysdeps/alpha/fpu/e_sqrt.c: Use !samegp. * elf/tls-macros.h: Add alpha versions. * sysdeps/alpha/dl-machine.h (elf_machine_rela): Handle TLS relocs. * sysdeps/unix/alpha/sysdep.S: Support USE___THREAD. * sysdeps/unix/alpha/sysdep.h: Likewise. Add SYSCALL_ERROR_HANDLER. * sysdeps/unix/sysv/linux/alpha/brk.S: Use it. * sysdeps/unix/sysv/linux/alpha/clone.S: Likewise. * sysdeps/unix/sysv/linux/alpha/getitimer.S: Likewise. * sysdeps/unix/sysv/linux/alpha/getrusage.S: Likewise. * sysdeps/unix/sysv/linux/alpha/gettimeofday.S: Likewise. * sysdeps/unix/sysv/linux/alpha/ieee_get_fp_control.S: Likewise. * sysdeps/unix/sysv/linux/alpha/ieee_set_fp_control.S: Likewise. * sysdeps/unix/sysv/linux/alpha/rt_sigaction.S: Likewise. * sysdeps/unix/sysv/linux/alpha/select.S: Likewise. * sysdeps/unix/sysv/linux/alpha/setitimer.S: Likewise. * sysdeps/unix/sysv/linux/alpha/settimeofday.S: Likewise. * sysdeps/unix/sysv/linux/alpha/sigsuspend.S: Likewise. * sysdeps/unix/sysv/linux/alpha/syscall.S: Likewise. * sysdeps/unix/sysv/linux/alpha/utimes.S: Likewise. * sysdeps/unix/sysv/linux/alpha/wait4.S: Likewise. * sysdeps/unix/sysv/linux/alpha/sysdep.h: Re-include protect. Kill argument registers across the inline syscall. * sysdeps/unix/sysv/linux/alpha/clone.S: Add user_tid and tls args. * linuxthreads/sysdeps/alpha/tls.h: New file. * sysdeps/alpha/dl-tls.h: New file.
109 lines
2.6 KiB
ArmAsm
109 lines
2.6 KiB
ArmAsm
/* Copyright (C) 1996, 1997, 2002 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Richard Henderson <rth@tamu.edu>, 1996.
|
|
|
|
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. */
|
|
|
|
/* clone() is even more special than fork() as it mucks with stacks
|
|
and invokes a function in the right context after its all over. */
|
|
|
|
#include <sysdep.h>
|
|
#define _ERRNO_H 1
|
|
#include <bits/errno.h>
|
|
|
|
/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg,
|
|
pid_t *tid, void *tls);
|
|
*/
|
|
|
|
.text
|
|
ENTRY(__clone)
|
|
#ifdef PROF
|
|
ldgp gp,0(pv)
|
|
.set noat
|
|
lda AT, _mcount
|
|
jsr AT, (AT), _mcount
|
|
.set at
|
|
.prologue 1
|
|
#else
|
|
.prologue 0
|
|
#endif
|
|
|
|
/* Sanity check arguments. */
|
|
ldiq v0,EINVAL
|
|
beq a0,$error /* no NULL function pointers */
|
|
beq a1,$error /* no NULL stack pointers */
|
|
|
|
/* Save the fn ptr and arg on the new stack. */
|
|
subq a1,16,a1
|
|
stq a0,0(a1)
|
|
stq a3,8(a1)
|
|
|
|
/* Shift the flags, tid and tls arguments into place; the
|
|
child_stack argument is already correct. */
|
|
mov a2,a0
|
|
mov a4,a2
|
|
mov a5,a3
|
|
|
|
/* Do the system call. */
|
|
ldiq v0,__NR_clone
|
|
call_pal PAL_callsys
|
|
|
|
bne a3,$error
|
|
beq v0,thread_start
|
|
|
|
/* Successful return from the parent. */
|
|
ret
|
|
|
|
/* Something bad happened -- no child created. */
|
|
$error:
|
|
#ifndef PROF
|
|
br gp,1f
|
|
1: ldgp gp,0(gp)
|
|
#endif
|
|
SYSCALL_ERROR_HANDLER
|
|
|
|
END(__clone)
|
|
|
|
/* Load up the arguments to the function. Put this block of code in
|
|
its own function so that we can terminate the stack trace with our
|
|
debug info. */
|
|
|
|
.ent thread_start
|
|
thread_start:
|
|
.frame fp,0,zero,0
|
|
mov zero,fp
|
|
.prologue 0
|
|
|
|
/* Load up the arguments. */
|
|
ldq pv,0(sp)
|
|
ldq a0,8(sp)
|
|
addq sp,16,sp
|
|
|
|
/* Call the user's function. */
|
|
jsr ra,(pv)
|
|
ldgp gp,0(ra)
|
|
|
|
/* Call _exit rather than doing it inline for breakpoint purposes. */
|
|
mov v0,a0
|
|
jsr ra,_exit
|
|
|
|
/* Die horribly. */
|
|
halt
|
|
|
|
.end thread_start
|
|
|
|
weak_alias(__clone, clone)
|