gdb/i387-tdep.h - gdb

Macros defined

Source code

  1. /* Target-dependent code for the i387.

  3.    Copyright (C) 2000-2015 Free Software Foundation, Inc.

  5.    This file is part of GDB.

  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 3 of the License, or
  10.    (at your option) any later version.

  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.

  17.    You should have received a copy of the GNU General Public License
  18.    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

  20. #ifndef I387_TDEP_H
  21. ‌#define I387_TDEP_H

  23. struct gdbarch;
  24. struct frame_info;
  25. struct regcache;
  26. struct type;
  27. struct ui_file;

  29. /* Number of i387 floating point registers.  */
  30. ‌#define I387_NUM_REGS        16

  32. ‌#define I387_ST0_REGNUM(tdep) ((tdep)->st0_regnum)
  33. ‌#define I387_NUM_XMM_REGS(tdep) ((tdep)->num_xmm_regs)
  34. ‌#define I387_NUM_XMM_AVX512_REGS(tdep) ((tdep)->num_xmm_avx512_regs)
  35. ‌#define I387_MM0_REGNUM(tdep) ((tdep)->mm0_regnum)
  36. ‌#define I387_NUM_YMM_REGS(tdep) ((tdep)->num_ymm_regs)
  37. ‌#define I387_YMM0H_REGNUM(tdep) ((tdep)->ymm0h_regnum)

  39. ‌#define I387_BND0R_REGNUM(tdep) ((tdep)->bnd0r_regnum)
  40. ‌#define I387_BNDCFGU_REGNUM(tdep) ((tdep)->bndcfgu_regnum)

  42. /* Set of constants used for 32 and 64-bit.  */
  43. ‌#define I387_NUM_MPX_REGS 6
  44. ‌#define I387_NUM_BND_REGS 4
  45. ‌#define I387_NUM_MPX_CTRL_REGS 2
  46. ‌#define I387_NUM_K_REGS 8

  48. ‌#define I387_K0_REGNUM(tdep) ((tdep)->k0_regnum)
  49. ‌#define I387_NUM_ZMMH_REGS(tdep) ((tdep)->num_zmm_regs)
  50. ‌#define I387_ZMM0H_REGNUM(tdep) ((tdep)->zmm0h_regnum)
  51. ‌#define I387_NUM_YMM_AVX512_REGS(tdep) ((tdep)->num_ymm_avx512_regs)
  52. ‌#define I387_YMM16H_REGNUM(tdep) ((tdep)->ymm16h_regnum)

  54. ‌#define I387_FCTRL_REGNUM(tdep) (I387_ST0_REGNUM (tdep) + 8)
  55. ‌#define I387_FSTAT_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 1)
  56. ‌#define I387_FTAG_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 2)
  57. ‌#define I387_FISEG_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 3)
  58. ‌#define I387_FIOFF_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 4)
  59. ‌#define I387_FOSEG_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 5)
  60. ‌#define I387_FOOFF_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 6)
  61. ‌#define I387_FOP_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 7)
  62. ‌#define I387_XMM0_REGNUM(tdep) (I387_ST0_REGNUM (tdep) + 16)
  63. ‌#define I387_XMM16_REGNUM(tdep) ((tdep)->xmm16_regnum)
  64. ‌#define I387_MXCSR_REGNUM(tdep) \
  65.   (I387_XMM0_REGNUM (tdep) + I387_NUM_XMM_REGS (tdep))
  66. ‌#define I387_YMM0_REGNUM(tdep) (I387_MXCSR_REGNUM(tdep) + 1)
  67. ‌#define I387_YMMENDH_REGNUM(tdep) \
  68.   (I387_YMM0H_REGNUM (tdep) + I387_NUM_YMM_REGS (tdep))

  70. ‌#define I387_MPXEND_REGNUM(tdep) \
  71.   (I387_BND0R_REGNUM (tdep) + I387_NUM_MPX_REGS)

  73. ‌#define I387_KEND_REGNUM(tdep) \
  74.   (I387_K0_REGNUM (tdep) + I387_NUM_K_REGS)
  75. ‌#define I387_ZMMENDH_REGNUM(tdep) \
  76.   (I387_ZMM0H_REGNUM (tdep) + I387_NUM_ZMMH_REGS (tdep))
  77. ‌#define I387_YMMH_AVX512_END_REGNUM(tdep) \
  78.   (I387_YMM16H_REGNUM (tdep) + I387_NUM_YMM_AVX512_REGS (tdep))
  79. ‌#define I387_XMM_AVX512_END_REGNUM(tdep) \
  80.   (I387_XMM16_REGNUM (tdep) + I387_NUM_XMM_AVX512_REGS (tdep))

  82. /* Print out the i387 floating point state.  */

  84. extern void i387_print_float_info (struct gdbarch *gdbarch,
  85.                                    struct ui_file *file,
  86.                                    struct frame_info *frame,
  87.                                    const char *args);

  89. /* Return nonzero if a value of type TYPE stored in register REGNUM
  90.    needs any special handling.  */

  92. extern int i387_convert_register_p (struct gdbarch *gdbarch, int regnum,
  93.                                     struct type *type);

  95. /* Read a value of type TYPE from register REGNUM in frame FRAME, and
  96.    return its contents in TO.  */

  98. extern int i387_register_to_value (struct frame_info *frame, int regnum,
  99.                                    struct type *type, gdb_byte *to,
  100.                                    int *optimizedp, int *unavailablep);

  102. /* Write the contents FROM of a value of type TYPE into register
  103.    REGNUM in frame FRAME.  */

  105. extern void i387_value_to_register (struct frame_info *frame, int regnum,
  106.                                     struct type *type, const gdb_byte *from);


  109. /* Size of the memory area use by the 'fsave' and 'fxsave'
  110.    instructions.  */
  111. ‌#define I387_SIZEOF_FSAVE        108
  112. ‌#define I387_SIZEOF_FXSAVE        512

  114. /* Fill register REGNUM in REGCACHE with the appropriate value from
  115.    *FSAVE.  This function masks off any of the reserved bits in
  116.    *FSAVE.  */

  118. extern void i387_supply_fsave (struct regcache *regcache, int regnum,
  119.                                const void *fsave);

  121. /* Fill register REGNUM (if it is a floating-point register) in *FSAVE
  122.    with the value from REGCACHE.  If REGNUM is -1, do this for all
  123.    registers.  This function doesn't touch any of the reserved bits in
  124.    *FSAVE.  */

  126. extern void i387_collect_fsave (const struct regcache *regcache, int regnum,
  127.                                 void *fsave);

  129. /* Fill register REGNUM in REGCACHE with the appropriate
  130.    floating-point or SSE register value from *FXSAVE.  This function
  131.    masks off any of the reserved bits in *FXSAVE.  */

  133. extern void i387_supply_fxsave (struct regcache *regcache, int regnum,
  134.                                 const void *fxsave);

  136. /* Similar to i387_supply_fxsave, but use XSAVE extended state.  */

  138. extern void i387_supply_xsave (struct regcache *regcache, int regnum,
  139.                                const void *xsave);

  141. /* Fill register REGNUM (if it is a floating-point or SSE register) in
  142.    *FXSAVE with the value from REGCACHE.  If REGNUM is -1, do this for
  143.    all registers.  This function doesn't touch any of the reserved
  144.    bits in *FXSAVE.  */

  146. extern void i387_collect_fxsave (const struct regcache *regcache, int regnum,
  147.                                  void *fxsave);

  149. /* Similar to i387_collect_fxsave, but use XSAVE extended state.  */

  151. extern void i387_collect_xsave (const struct regcache *regcache,
  152.                                 int regnum, void *xsave, int gcore);

  154. /* Prepare the FPU stack in REGCACHE for a function return.  */

  156. extern void i387_return_value (struct gdbarch *gdbarch,
  157.                                struct regcache *regcache);

  159. #endif /* i387-tdep.h */