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 #include <sys/types.h> 30 31 #ifdef __cplusplus 32 extern "C" { 33 #endif 34 35 #define FASTTRAP_MAX_INSTR_SIZE 15 36 37 #define FASTTRAP_INSTR 0xcc 38 39 #define FASTTRAP_SUNWDTRACE_SIZE 64 40 41 typedef uint8_t fasttrap_instr_t; 42 43 typedef struct fasttrap_machtp { 44 uint8_t ftmt_instr[FASTTRAP_MAX_INSTR_SIZE]; /* orig. instr. */ 45 uint8_t ftmt_size; /* instruction size */ 46 #ifdef __amd64 47 uint8_t ftmt_ripmode; /* %rip-relative handling mode */ 48 uint8_t ftmt_modrm; /* saved modrm byte */ 49 #endif 50 uint8_t ftmt_type; /* emulation type */ 51 uint8_t ftmt_code; /* branch condition */ 52 uint8_t ftmt_base; /* branch base */ 53 uint8_t ftmt_index; /* branch index */ 54 uint8_t ftmt_scale; /* branch scale */ 55 uint8_t ftmt_segment; /* segment for memory accesses */ 56 uintptr_t ftmt_dest; /* destination of control flow */ 57 } fasttrap_machtp_t; 58 59 #define ftt_instr ftt_mtp.ftmt_instr 60 #ifdef __amd64 61 #define ftt_ripmode ftt_mtp.ftmt_ripmode 62 #define ftt_modrm ftt_mtp.ftmt_modrm 63 #endif 64 #define ftt_size ftt_mtp.ftmt_size 65 #define ftt_type ftt_mtp.ftmt_type 66 #define ftt_code ftt_mtp.ftmt_code 67 #define ftt_base ftt_mtp.ftmt_base 68 #define ftt_index ftt_mtp.ftmt_index 69 #define ftt_scale ftt_mtp.ftmt_scale 70 #define ftt_segment ftt_mtp.ftmt_segment 71 #define ftt_dest ftt_mtp.ftmt_dest 72 73 #define FASTTRAP_T_COMMON 0x00 /* common case -- no emulation */ 74 #define FASTTRAP_T_JCC 0x01 /* near and far conditional jumps */ 75 #define FASTTRAP_T_LOOP 0x02 /* loop instructions */ 76 #define FASTTRAP_T_JCXZ 0x03 /* jump if %ecx/%rcx is zero */ 77 #define FASTTRAP_T_JMP 0x04 /* relative jump */ 78 #define FASTTRAP_T_CALL 0x05 /* near call (and link) */ 79 #define FASTTRAP_T_RET 0x06 /* ret */ 80 #define FASTTRAP_T_RET16 0x07 /* ret <imm16> */ 81 82 /* 83 * For performance rather than correctness. 84 */ 85 #define FASTTRAP_T_PUSHL_EBP 0x10 /* pushl %ebp (for function entry) */ 86 #define FASTTRAP_T_NOP 0x11 /* nop */ 87 88 #define FASTTRAP_RIP_1 0x1 89 #define FASTTRAP_RIP_2 0x2 90 #define FASTTRAP_RIP_X 0x4 91 92 /* 93 * Segment values. 94 */ 95 #define FASTTRAP_SEG_NONE 0 96 #define FASTTRAP_SEG_CS 1 97 #define FASTTRAP_SEG_DS 2 98 #define FASTTRAP_SEG_ES 3 99 #define FASTTRAP_SEG_FS 4 100 #define FASTTRAP_SEG_GS 5 101 #define FASTTRAP_SEG_SS 6 102 103 #define FASTTRAP_AFRAMES 3 104 #define FASTTRAP_RETURN_AFRAMES 4 105 #define FASTTRAP_ENTRY_AFRAMES 3 106 #define FASTTRAP_OFFSET_AFRAMES 3 107 108 #ifdef __cplusplus 109 } 110 #endif 111 112 #endif /* _FASTTRAP_ISA_H */ 113