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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22/* 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27#pragma ident "%Z%%M% %I% %E% SMI" 28 29#include <sys/asm_linkage.h> 30#include <sys/privregs.h> 31 32#if defined(__lint) 33#include <kmdb/kmdb_start.h> 34#endif 35 36#include <kmdb/kaif_asmutil.h> 37 38/* 39 * This routine is called for the initial trip into the debugger. We need 40 * to switch over to the debugger stack (which we also need to initialize) 41 * before entering the debugger. Subsequent re-entries will longjmp their 42 * way in. 43 */ 44#if defined(__lint) 45void 46kmdb_first_start(void) 47{ 48} 49#else /* __lint */ 50 51 ENTRY(kmdb_first_start) 52 53 GET_NWIN(%g1, %g2); /* %g1 is scratch, %g2 set to nwin-1 */ 54 sub %g2, 1, %g2 55 56 wrpr %g2, %cansave 57 wrpr %g0, %canrestore 58 59 set kmdb_main_stack, %g1 60 ldx [%g1], %g1 61 62 set kmdb_main_stack_size, %g2 63 ldx [%g2], %g2 64 65 add %g1, %g2, %g1 66 sub %g1, 1, %g1 67 and %g1, -STACK_ALIGN64, %g1 68 sub %g1, SA64(MINFRAME) + V9BIAS64, %sp 69 70 mov 0, %fp 71 save %sp, -SA64(MINFRAME64), %sp 72 73 /* start the debugger */ 74 call kmdb_main 75 nop 76 77 SET_SIZE(kmdb_first_start) 78#endif 79 80