1 /* Copyright (C) 1999, 2000 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, write to the Free
16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19 /* clone() is even more special than fork() as it mucks with stacks
20 and invokes a function in the right context after its all over. */
23 #include <asm/unistd.h>
25 #include <bits/errno.h>
28 #ifdef __HAVE_SHARED__
29 #define PLTJMP(_x) _x##@PLT
35 /* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg); */
44 /* sanity check arguments. */
55 /* insert the args onto the new stack */
57 /* save the function pointer as the 0th element */
60 /* do the system call */
65 // 12 arithmetic shifts for the crappy sh2, because shad doesn't exist!
82 not r1, r1 // r1=0 means r0 = -1 to -4095
83 tst r1, r1 // i.e. error in linux
99 /* we are done, passing the return value through r0 */
101 #ifdef __HAVE_SHARED__
105 mova .LG, r0 /* .LG from syscall_error.S */
121 .long PLTJMP( HIDDEN_JUMPTARGET(_exit))
124 #include "syscall_error.S"