__clone.S revision 1.1.2.2
1 1.1.2.2 nathanw /* $NetBSD: __clone.S,v 1.1.2.2 2001/10/08 20:18:06 nathanw Exp $ */ 2 1.1.2.2 nathanw 3 1.1.2.2 nathanw /*- 4 1.1.2.2 nathanw * Copyright (c) 2001 Tsubai Masanari. All rights reserved. 5 1.1.2.2 nathanw * 6 1.1.2.2 nathanw * Redistribution and use in source and binary forms, with or without 7 1.1.2.2 nathanw * modification, are permitted provided that the following conditions 8 1.1.2.2 nathanw * are met: 9 1.1.2.2 nathanw * 1. Redistributions of source code must retain the above copyright 10 1.1.2.2 nathanw * notice, this list of conditions and the following disclaimer. 11 1.1.2.2 nathanw * 2. Redistributions in binary form must reproduce the above copyright 12 1.1.2.2 nathanw * notice, this list of conditions and the following disclaimer in the 13 1.1.2.2 nathanw * documentation and/or other materials provided with the distribution. 14 1.1.2.2 nathanw * 3. The name of the author may not be used to endorse or promote products 15 1.1.2.2 nathanw * derived from this software without specific prior written permission. 16 1.1.2.2 nathanw * 17 1.1.2.2 nathanw * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 1.1.2.2 nathanw * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 1.1.2.2 nathanw * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 1.1.2.2 nathanw * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 1.1.2.2 nathanw * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 1.1.2.2 nathanw * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 1.1.2.2 nathanw * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 1.1.2.2 nathanw * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 1.1.2.2 nathanw * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 1.1.2.2 nathanw * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 1.1.2.2 nathanw */ 28 1.1.2.2 nathanw 29 1.1.2.2 nathanw #include <sys/errno.h> 30 1.1.2.2 nathanw #include "SYS.h" 31 1.1.2.2 nathanw 32 1.1.2.2 nathanw #ifdef WEAK_ALIAS 33 1.1.2.2 nathanw WEAK_ALIAS(clone,__clone) 34 1.1.2.2 nathanw #endif 35 1.1.2.2 nathanw 36 1.1.2.2 nathanw /* 37 1.1.2.2 nathanw * int __clone(int (*fn)(void *), void *stack, int flags, void *arg); 38 1.1.2.2 nathanw */ 39 1.1.2.2 nathanw ENTRY(__clone) 40 1.1.2.2 nathanw /* 41 1.1.2.2 nathanw * Sanity checks: func and stack may not be NULL. 42 1.1.2.2 nathanw */ 43 1.1.2.2 nathanw tst r4, r4 44 1.1.2.2 nathanw bt inval 45 1.1.2.2 nathanw tst r5, r5 46 1.1.2.2 nathanw bt inval 47 1.1.2.2 nathanw 48 1.1.2.2 nathanw mov r4, r2 49 1.1.2.2 nathanw mov r6, r4 50 1.1.2.2 nathanw mov.l LSYS___clone, r0 51 1.1.2.2 nathanw trapa #0x80 52 1.1.2.2 nathanw bf err 53 1.1.2.2 nathanw 54 1.1.2.2 nathanw tst r0, r0 55 1.1.2.2 nathanw bf 1f /* We're the parent, just return. */ 56 1.1.2.2 nathanw 57 1.1.2.2 nathanw jsr @r2 /* Call the clone's entry point. */ 58 1.1.2.2 nathanw mov r7, r4 /* arg */ 59 1.1.2.2 nathanw 60 1.1.2.2 nathanw mov.l L__exit, r1 61 1.1.2.2 nathanw jsr @r1 62 1.1.2.2 nathanw mov r0, r4 63 1.1.2.2 nathanw 64 1.1.2.2 nathanw inval: 65 1.1.2.2 nathanw mov #EINVAL, r0 66 1.1.2.2 nathanw err: 67 1.1.2.2 nathanw mov.l Lcerror, r1 68 1.1.2.2 nathanw jmp @r1 69 1.1.2.2 nathanw nop 70 1.1.2.2 nathanw 1: 71 1.1.2.2 nathanw rts 72 1.1.2.2 nathanw nop 73 1.1.2.2 nathanw 74 1.1.2.2 nathanw .align 2 75 1.1.2.2 nathanw LSYS___clone: 76 1.1.2.2 nathanw .long SYS___clone 77 1.1.2.2 nathanw L__exit: 78 1.1.2.2 nathanw .long _C_LABEL(_exit) 79 1.1.2.2 nathanw Lcerror: 80 1.1.2.2 nathanw .long cerror 81
Indexes created Sun Oct 12 05:10:08 GMT 2025