gdb/i386-tdep.h

   1 /* Target-dependent code for GDB, the GNU debugger.
   2    Copyright 2001
   3    Free Software Foundation, Inc.
   4
   5    This file is part of GDB.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 59 Temple Place - Suite 330,
  20    Boston, MA 02111-1307, USA.  */
  21
  22 #ifndef I386_TDEP_H
  23 #define I386_TDEP_H
  24
  25 #if !defined (FPU_REG_RAW_SIZE) || (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL)
  26 #define FPU_REG_RAW_SIZE 10
  27 #endif
  28
  29 #if !defined (XMM0_REGNUM) || (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL)
  30 #define XMM0_REGNUM FIRST_XMM_REGNUM
  31 #endif
  32 #if !defined (FIRST_FPU_REGNUM) || (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL)
  33 #define FIRST_FPU_REGNUM FP0_REGNUM
  34 #endif
  35 #if !defined (LAST_FPU_REGNUM) || (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL)
  36 #define LAST_FPU_REGNUM (gdbarch_tdep (current_gdbarch)->last_fpu_regnum)
  37 #endif
  38 #if !defined (FIRST_XMM_REGNUM) || (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL)
  39 #define FIRST_XMM_REGNUM (gdbarch_tdep (current_gdbarch)->first_xmm_regnum)
  40 #endif
  41 #if !defined (LAST_XMM_REGNUM) || (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL)
  42 #define LAST_XMM_REGNUM (gdbarch_tdep (current_gdbarch)->last_xmm_regnum)
  43 #endif
  44 #if !defined (MXCSR_REGNUM) || (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL)
  45 #define MXCSR_REGNUM (gdbarch_tdep (current_gdbarch)->mxcsr_regnum)
  46 #endif
  47 #if !defined (FIRST_FPU_CTRL_REGNUM) || (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL)
  48 #define FIRST_FPU_CTRL_REGNUM (gdbarch_tdep (current_gdbarch)->first_fpu_ctrl_regnum)
  49 #endif
  50 #if !defined (LAST_FPU_CTRL_REGNUM) || (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL)
  51 #define LAST_FPU_CTRL_REGNUM (FIRST_FPU_CTRL_REGNUM + 7)
  52 #endif
  53
  54 /* All of these control registers (except for FCOFF and FDOFF) are
  55    sixteen bits long (at most) in the FPU, but are zero-extended to
  56    thirty-two bits in GDB's register file.  This makes it easier to
  57    compute the size of the control register file, and somewhat easier
  58    to convert to and from the FSAVE instruction's 32-bit format.  */
  59 /* FPU control word.  */
  60 #if !defined (FCTRL_REGNUM) || (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL)
  61 #define FCTRL_REGNUM (FIRST_FPU_CTRL_REGNUM)
  62 #endif
  63 /* FPU status word.  */
  64 #if !defined (FSTAT_REGNUM) || (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL)
  65 #define FSTAT_REGNUM (FIRST_FPU_CTRL_REGNUM + 1)
  66 #endif
  67 /* FPU register tag word.  */
  68 #if !defined (FTAG_REGNUM) || (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL)
  69 #define FTAG_REGNUM  (FIRST_FPU_CTRL_REGNUM + 2)
  70 #endif
  71 /* FPU instruction's code segment selector 16 bits, called "FPU Instruction
  72    Pointer Selector" in the x86 manuals.  */
  73 #if !defined (FCS_REGNUM) || (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL)
  74 #define FCS_REGNUM   (FIRST_FPU_CTRL_REGNUM + 3)
  75 #endif
  76 /* FPU instruction's offset within segment ("Fpu Code OFFset").  */
  77 #if !defined (FCOFF_REGNUM) || (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL)
  78 #define FCOFF_REGNUM (FIRST_FPU_CTRL_REGNUM + 4)
  79 #endif
  80 /* FPU operand's data segment.  */
  81 #if !defined (FDS_REGNUM) || (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL)
  82 #define FDS_REGNUM   (FIRST_FPU_CTRL_REGNUM + 5)
  83 #endif
  84 /* FPU operand's offset within segment.  */
  85 #if !defined (FDOFF_REGNUM) || (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL)
  86 #define FDOFF_REGNUM (FIRST_FPU_CTRL_REGNUM + 6)
  87 #endif
  88 /* FPU opcode, bottom eleven bits.  */
  89 #if !defined (FOP_REGNUM) || (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL)
  90 #define FOP_REGNUM   (FIRST_FPU_CTRL_REGNUM + 7)
  91 #endif
  92
  93 /* i386 architecture specific information.  */
  94 struct gdbarch_tdep
  95 {
  96   int last_fpu_regnum;
  97   int first_xmm_regnum;
  98   int last_xmm_regnum;
  99   int mxcsr_regnum;             /* Streaming SIMD Extension control/status.  */
 100   int first_fpu_ctrl_regnum;
 101 };
 102
 103 #if !defined (IS_FP_REGNUM) || (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL)
 104 #define IS_FP_REGNUM(n) (FIRST_FPU_REGNUM <= (n) && (n) <= LAST_FPU_REGNUM)
 105 #endif
 106 #if !defined (IS_FPU_CTRL_REGNUM) || (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL)
 107 #define IS_FPU_CTRL_REGNUM(n) (FIRST_FPU_CTRL_REGNUM <= (n) && (n) <= LAST_FPU_CTRL_REGNUM)
 108 #endif
 109 #if !defined (IS_SSE_REGNUM) || (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL)
 110 #define IS_SSE_REGNUM(n) (FIRST_XMM_REGNUM <= (n) && (n) <= LAST_XMM_REGNUM)
 111 #endif
 112
 113 #endif