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 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _FASTTRAP_ISA_H 28 #define _FASTTRAP_ISA_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #include <sys/types.h> 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 #define FASTTRAP_MAX_INSTR_SIZE 15 39 40 #define FASTTRAP_INSTR 0xcc 41 42 #define FASTTRAP_SUNWDTRACE_SIZE 64 43 44 typedef uint8_t fasttrap_instr_t; 45 46 typedef struct fasttrap_machtp { 47 uint8_t ftmt_instr[FASTTRAP_MAX_INSTR_SIZE]; /* orig. instr. */ 48 uint8_t ftmt_size; /* instruction size */ 49 #ifdef __amd64 50 uint8_t ftmt_ripmode; /* %rip-relative handling mode */ 51 uint8_t ftmt_modrm; /* saved modrm byte */ 52 #endif 53 uint8_t ftmt_type; /* emulation type */ 54 uint8_t ftmt_code; /* branch condition */ 55 uint8_t ftmt_base; /* branch base */ 56 uint8_t ftmt_index; /* branch index */ 57 uint8_t ftmt_scale; /* branch scale */ 58 uintptr_t ftmt_dest; /* destination of control flow */ 59 } fasttrap_machtp_t; 60 61 #define ftt_instr ftt_mtp.ftmt_instr 62 #ifdef __amd64 63 #define ftt_ripmode ftt_mtp.ftmt_ripmode 64 #define ftt_modrm ftt_mtp.ftmt_modrm 65 #endif 66 #define ftt_size ftt_mtp.ftmt_size 67 #define ftt_type ftt_mtp.ftmt_type 68 #define ftt_code ftt_mtp.ftmt_code 69 #define ftt_base ftt_mtp.ftmt_base 70 #define ftt_index ftt_mtp.ftmt_index 71 #define ftt_scale ftt_mtp.ftmt_scale 72 #define ftt_dest ftt_mtp.ftmt_dest 73 74 #define FASTTRAP_T_COMMON 0x00 /* common case -- no emulation */ 75 #define FASTTRAP_T_JCC 0x01 /* near and far conditional jumps */ 76 #define FASTTRAP_T_LOOP 0x02 /* loop instructions */ 77 #define FASTTRAP_T_JCXZ 0x03 /* jump if %ecx/%rcx is zero */ 78 #define FASTTRAP_T_JMP 0x04 /* relative jump */ 79 #define FASTTRAP_T_CALL 0x05 /* near call (and link) */ 80 #define FASTTRAP_T_RET 0x06 /* ret */ 81 #define FASTTRAP_T_RET16 0x07 /* ret <imm16> */ 82 83 /* 84 * For performance rather than correctness. 85 */ 86 #define FASTTRAP_T_PUSHL_EBP 0x10 /* pushl %ebp (for function entry) */ 87 88 #define FASTTRAP_RIP_1 0x1 89 #define FASTTRAP_RIP_2 0x2 90 #define FASTTRAP_RIP_X 0x4 91 92 #define FASTTRAP_AFRAMES 3 93 #define FASTTRAP_RETURN_AFRAMES 4 94 #define FASTTRAP_ENTRY_AFRAMES 3 95 #define FASTTRAP_OFFSET_AFRAMES 3 96 97 #ifdef __cplusplus 98 } 99 #endif 100 101 #endif /* _FASTTRAP_ISA_H */ 102