usr/src/uts/intel/sys/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 #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 #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_AFRAMES                3
 106 #define FASTTRAP_RETURN_AFRAMES         4
 107 #define FASTTRAP_ENTRY_AFRAMES          3
 108 #define FASTTRAP_OFFSET_AFRAMES         3
 109
 110 #ifdef  __cplusplus
 111 }
 112 #endif
 113
 114 #endif  /* _FASTTRAP_ISA_H */