1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21/* 22 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26/* 27 * The following c routine has appropriate interface semantics 28 * for the chaining combination template. On the sparc architecture 29 * the assembly routine is further tuned to make it tail recursive. 30 * 31 * void 32 * prb_chain_entry(void *a, void *b, void *c) 33 * { 34 * prb_chain_down(a, b, c); 35 * prb_chain_next(a, b, c); 36 * } 37 */ 38 39 .file "i386_assm.s" 40 .data 41 .align 4 42 .globl prb_callinfo 43prb_callinfo: 44 .4byte 1 /* offset */ 45 .4byte 0 /* shift right */ 46 .4byte 0xffffffff /* mask */ 47 48 .text 49 .align 4 50 .globl prb_chain_entry 51 .globl prb_chain_down 52 .local chain_down 53 .globl prb_chain_next 54 .local chain_next 55 .globl prb_chain_end 56prb_chain_entry: 57#if defined(__amd64) 58 /* XX64 -- fix me */ 59#else 60 pushl %ebp 61 movl %esp, %ebp 62 pushl %edi 63 pushl %esi 64 pushl %ebx 65 movl 16(%ebp), %ebx 66 pushl %ebx 67 movl 12(%ebp), %edi 68 pushl %edi 69 movl 8(%ebp), %esi 70 pushl %esi 71#endif 72prb_chain_down: 73chain_down: 74#if defined(__amd64) 75 /* XX64 -- fix me */ 76#else 77 call chain_down 78 addl $12, %esp 79 pushl %ebx 80 pushl %edi 81 pushl %esi 82#endif 83prb_chain_next: 84chain_next: 85#if defined(__amd64) 86 /* XX64 -- fix me */ 87#else 88 call chain_next 89 addl $12, %esp 90 popl %ebx 91 popl %esi 92 popl %edi 93 leave 94#endif 95 ret 96prb_chain_end: 97 nop 98