bsd/i386/fasttrap_isa.h

   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 #include <stdint.h>
  31
  32 #ifdef  __cplusplus
  33 extern "C" {
  34 #endif
  35
  36 #define FASTTRAP_MAX_INSTR_SIZE         15
  37
  38 #define FASTTRAP_INSTR                  0xcc
  39
  40 #define FASTTRAP_SUNWDTRACE_SIZE        64
  41
  42 typedef uint8_t         fasttrap_instr_t;
  43
  44 typedef struct fasttrap_machtp {
  45         uint8_t         ftmt_instr[FASTTRAP_MAX_INSTR_SIZE]; /* orig. instr. */
  46         uint8_t         ftmt_size;      /* instruction size */
  47         uint8_t         ftmt_ripmode;   /* %rip-relative handling mode */
  48         uint8_t         ftmt_modrm;     /* saved modrm byte */
  49         uint8_t         ftmt_type;      /* emulation type */
  50         uint8_t         ftmt_code;      /* branch condition */
  51         uint8_t         ftmt_base;      /* branch base */
  52         uint8_t         ftmt_index;     /* branch index */
  53         uint8_t         ftmt_scale;     /* branch scale */
  54         uint8_t         ftmt_segment;   /* segment for memory accesses */
  55         user_addr_t     ftmt_dest;      /* destination of control flow */
  56         uint8_t         ftmt_installed:1;
  57         uint8_t         ftmt_retired:1;
  58 } fasttrap_machtp_t;
  59
  60 #define ftt_instr       ftt_mtp.ftmt_instr
  61 #define ftt_ripmode     ftt_mtp.ftmt_ripmode
  62 #define ftt_modrm       ftt_mtp.ftmt_modrm
  63 #define ftt_size        ftt_mtp.ftmt_size
  64 #define ftt_type        ftt_mtp.ftmt_type
  65 #define ftt_code        ftt_mtp.ftmt_code
  66 #define ftt_base        ftt_mtp.ftmt_base
  67 #define ftt_index       ftt_mtp.ftmt_index
  68 #define ftt_scale       ftt_mtp.ftmt_scale
  69 #define ftt_segment     ftt_mtp.ftmt_segment
  70 #define ftt_dest        ftt_mtp.ftmt_dest
  71 #define ftt_installed   ftt_mtp.ftmt_installed
  72 #define ftt_retired     ftt_mtp.ftmt_retired
  73
  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 #define FASTTRAP_T_NOP          0x11    /* nop */
  89
  90 #define FASTTRAP_RIP_1          0x1
  91 #define FASTTRAP_RIP_2          0x2
  92 #define FASTTRAP_RIP_X          0x4
  93
  94 /*
  95  * Segment values.
  96  */
  97 #define FASTTRAP_SEG_NONE               0
  98 #define FASTTRAP_SEG_CS                 1
  99 #define FASTTRAP_SEG_DS                 2
 100 #define FASTTRAP_SEG_ES                 3
 101 #define FASTTRAP_SEG_FS                 4
 102 #define FASTTRAP_SEG_GS                 5
 103 #define FASTTRAP_SEG_SS                 6
 104
 105 #define FASTTRAP_RETURN_AFRAMES         6
 106 #define FASTTRAP_ENTRY_AFRAMES          5
 107 #define FASTTRAP_OFFSET_AFRAMES         5
 108
 109 #ifdef  __cplusplus
 110 }
 111 #endif
 112
 113 #endif  /* _FASTTRAP_ISA_H */