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 2006 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _FASTTRAP_ISA_H 27 #define _FASTTRAP_ISA_H 28 29 #pragma ident "%Z%%M% %I% %E% SMI" 30 31 #include <sys/types.h> 32 33 #ifdef __cplusplus 34 extern "C" { 35 #endif 36 37 #define FASTTRAP_MAX_INSTR_SIZE 15 38 39 #define FASTTRAP_INSTR 0xcc 40 41 #define FASTTRAP_SUNWDTRACE_SIZE 64 42 43 typedef uint8_t fasttrap_instr_t; 44 45 typedef struct fasttrap_machtp { 46 uint8_t ftmt_instr[FASTTRAP_MAX_INSTR_SIZE]; /* orig. instr. */ 47 uint8_t ftmt_size; /* instruction size */ 48 #ifdef __amd64 49 uint8_t ftmt_ripmode; /* %rip-relative handling mode */ 50 uint8_t ftmt_modrm; /* saved modrm byte */ 51 #endif 52 uint8_t ftmt_type; /* emulation type */ 53 uint8_t ftmt_code; /* branch condition */ 54 uint8_t ftmt_base; /* branch base */ 55 uint8_t ftmt_index; /* branch index */ 56 uint8_t ftmt_scale; /* branch scale */ 57 uint8_t ftmt_segment; /* segment for memory accesses */ 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_segment ftt_mtp.ftmt_segment 73 #define ftt_dest ftt_mtp.ftmt_dest 74 75 #define FASTTRAP_T_COMMON 0x00 /* common case -- no emulation */ 76 #define FASTTRAP_T_JCC 0x01 /* near and far conditional jumps */ 77 #define FASTTRAP_T_LOOP 0x02 /* loop instructions */ 78 #define FASTTRAP_T_JCXZ 0x03 /* jump if %ecx/%rcx is zero */ 79 #define FASTTRAP_T_JMP 0x04 /* relative jump */ 80 #define FASTTRAP_T_CALL 0x05 /* near call (and link) */ 81 #define FASTTRAP_T_RET 0x06 /* ret */ 82 #define FASTTRAP_T_RET16 0x07 /* ret <imm16> */ 83 84 /* 85 * For performance rather than correctness. 86 */ 87 #define FASTTRAP_T_PUSHL_EBP 0x10 /* pushl %ebp (for function entry) */ 88 89 #define FASTTRAP_RIP_1 0x1 90 #define FASTTRAP_RIP_2 0x2 91 #define FASTTRAP_RIP_X 0x4 92 93 /* 94 * Segment values. 95 */ 96 #define FASTTRAP_SEG_NONE 0 97 #define FASTTRAP_SEG_CS 1 98 #define FASTTRAP_SEG_DS 2 99 #define FASTTRAP_SEG_ES 3 100 #define FASTTRAP_SEG_FS 4 101 #define FASTTRAP_SEG_GS 5 102 #define FASTTRAP_SEG_SS 6 103 104 #define FASTTRAP_AFRAMES 3 105 #define FASTTRAP_RETURN_AFRAMES 4 106 #define FASTTRAP_ENTRY_AFRAMES 3 107 #define FASTTRAP_OFFSET_AFRAMES 3 108 109 #ifdef __cplusplus 110 } 111 #endif 112 113 #endif /* _FASTTRAP_ISA_H */ 114