gdb/arch/ppc-linux-common.h

   1 /* Common target dependent code for GNU/Linux on PPC systems.
   2
   3    Copyright (C) 2018 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 ARCH_PPC_LINUX_COMMON_H
  21 #define ARCH_PPC_LINUX_COMMON_H
  22
  23 struct target_desc;
  24
  25 /* The core file VMX regset has 34 16-byte fields (32 16-byte vector
  26    registers, plus two fields containing 4-byte registers, VSCR and
  27    VRSAVE), while the ptrace calls return or read 33 16-byte fields
  28    plus a 4-byte field for VRSAVE. For simplicity we use the longer
  29    length for both cases.  */
  30 #define PPC_LINUX_SIZEOF_VRREGSET 544
  31
  32 #define PPC_LINUX_SIZEOF_VSXREGSET 256
  33 #define PPC_LINUX_SIZEOF_PPRREGSET 8
  34 #define PPC_LINUX_SIZEOF_DSCRREGSET 8
  35 #define PPC_LINUX_SIZEOF_TARREGSET 8
  36 #define PPC_LINUX_SIZEOF_EBBREGSET (3*8)
  37 #define PPC_LINUX_SIZEOF_PMUREGSET (5*8)
  38
  39 /* Check if the hwcap auxv entry indicates that isa205 is supported.  */
  40 bool ppc_linux_has_isa205 (CORE_ADDR hwcap);
  41
  42 /* Features used to determine the target description.  */
  43 struct ppc_linux_features
  44 {
  45   unsigned int wordsize;
  46   bool altivec;
  47   bool vsx;
  48   bool isa205;
  49   bool ppr_dscr;
  50   bool isa207;
  51   bool cell;
  52 };
  53
  54 /* Base value for ppc_linux_features variables.  */
  55 const struct ppc_linux_features ppc_linux_no_features = {
  56   0,
  57   false,
  58   false,
  59   false,
  60   false,
  61   false,
  62   false,
  63 };
  64
  65 /* Return a target description that matches FEATURES.  */
  66 const struct target_desc * ppc_linux_match_description
  67 (struct ppc_linux_features features);
  68
  69 #endif /* ARCH_PPC_LINUX_COMMON_H */