gdb/common/x86-xstate.h

   1 /* Common code for x86 XSAVE extended state.
   2
   3    Copyright (C) 2010-2015 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 3 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, see <http://www.gnu.org/licenses/>.  */
  19
  20 #ifndef X86_XSTATE_H
  21 #define X86_XSTATE_H 1
  22
  23 /* The extended state feature bits.  */
  24 #define X86_XSTATE_X87          (1ULL << 0)
  25 #define X86_XSTATE_SSE          (1ULL << 1)
  26 #define X86_XSTATE_AVX          (1ULL << 2)
  27 #define X86_XSTATE_BNDREGS      (1ULL << 3)
  28 #define X86_XSTATE_BNDCFG       (1ULL << 4)
  29 #define X86_XSTATE_MPX          (X86_XSTATE_BNDREGS | X86_XSTATE_BNDCFG)
  30
  31 /* AVX 512 adds three feature bits.  All three must be enabled.  */
  32 #define X86_XSTATE_K            (1ULL << 5)
  33 #define X86_XSTATE_ZMM_H        (1ULL << 6)
  34 #define X86_XSTATE_ZMM          (1ULL << 7)
  35 #define X86_XSTATE_AVX512       (X86_XSTATE_K | X86_XSTATE_ZMM_H \
  36                                  | X86_XSTATE_ZMM)
  37
  38 /* Supported mask and size of the extended state.  */
  39 #define X86_XSTATE_X87_MASK     X86_XSTATE_X87
  40 #define X86_XSTATE_SSE_MASK     (X86_XSTATE_X87 | X86_XSTATE_SSE)
  41 #define X86_XSTATE_AVX_MASK     (X86_XSTATE_SSE_MASK | X86_XSTATE_AVX)
  42 #define X86_XSTATE_MPX_MASK     (X86_XSTATE_AVX_MASK | X86_XSTATE_MPX)
  43 #define X86_XSTATE_AVX512_MASK  (X86_XSTATE_AVX_MASK | X86_XSTATE_AVX512)
  44 #define X86_XSTATE_MPX_AVX512_MASK (X86_XSTATE_MPX_MASK | X86_XSTATE_AVX512)
  45
  46 #define X86_XSTATE_ALL_MASK     (X86_XSTATE_MPX_AVX512_MASK)
  47
  48 #define X86_XSTATE_SSE_SIZE     576
  49 #define X86_XSTATE_AVX_SIZE     832
  50 #define X86_XSTATE_BNDREGS_SIZE 1024
  51 #define X86_XSTATE_BNDCFG_SIZE  1088
  52 #define X86_XSTATE_AVX512_SIZE  2688
  53 #define X86_XSTATE_MAX_SIZE     2688
  54
  55
  56 /* In case one of the MPX XCR0 bits is set we consider we have MPX.  */
  57 #define HAS_MPX(XCR0) (((XCR0) & X86_XSTATE_MPX) != 0)
  58 #define HAS_AVX(XCR0) (((XCR0) & X86_XSTATE_AVX) != 0)
  59 #define HAS_AVX512(XCR0) (((XCR0) & X86_XSTATE_AVX512) != 0)
  60
  61 /* Get I386 XSAVE extended state size.  */
  62 #define X86_XSTATE_SIZE(XCR0) \
  63     (HAS_AVX512 (XCR0) ? X86_XSTATE_AVX512_SIZE : \
  64      (HAS_MPX (XCR0) ? X86_XSTATE_BNDCFG_SIZE : \
  65       (HAS_AVX (XCR0) ? X86_XSTATE_AVX_SIZE : X86_XSTATE_SSE_SIZE)))
  66
  67 #endif /* X86_XSTATE_H */