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- /* Copyright (C) 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Richard Henderson (rth@tamu.edu).
- 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 <asm/errno.h>
- #include <asm/unistd.h>
- /* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg); */
- .text
- .align 4
- .globl __clone
- .type __clone,@function
- __clone:
- save %sp,-96,%sp
- /* sanity check arguments */
- tst %i0
- be .Lerror
- orcc %i1,%g0,%o1
- be .Lerror
- mov %i2,%o0
- /* Do the system call */
- set __NR_clone,%g1
- ta 0x10
- bcs .Lerror
- tst %o1
- bne __thread_start
- nop
- ret
- restore %o0,%g0,%o0
- .Lerror:
- call __errno_location
- or %g0,EINVAL,%i0
- st %i0,[%o0]
- ret
- restore %g0,-1,%o0
- .size __clone, .-__clone
- .type __thread_start,@function
- __thread_start:
- call %i0
- mov %i3,%o0
- call _exit,0
- nop
- .size __thread_start, .-__thread_start
- .weak clone ; clone = __clone
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