/* 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 <features.h> #include <asm/unistd.h> /* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg); */ .text .global clone .type clone,%function .align 4 clone: save %sp,-96,%sp /* sanity check arguments */ tst %i0 be __error orcc %i1,%g0,%o1 be __error mov %i2,%o0 /* Do the system call */ set __NR_clone,%g1 ta 0x10 bcs __error tst %o1 bne __thread_start nop ret restore %o0,%g0,%o0 __error: jmp __syscall_error .size clone,.-clone .type __thread_start,%function __thread_start: call %i0 mov %i3,%o0 call HIDDEN_JUMPTARGET(_exit),0 nop .size __thread_start,.-__thread_start