gdb/nat/ppc-linux.h

   1 /* Copyright (C) 1995-2018 Free Software Foundation, Inc.
   2
   3    This file is part of GDB.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  17
  18 #ifndef PPC_LINUX_H
  19 #define PPC_LINUX_H 1
  20
  21 #include <asm/ptrace.h>
  22 #include <asm/cputable.h>
  23
  24 /* This sometimes isn't defined.  */
  25 #ifndef PT_ORIG_R3
  26 #define PT_ORIG_R3 34
  27 #endif
  28 #ifndef PT_TRAP
  29 #define PT_TRAP 40
  30 #endif
  31
  32 /* The PPC_FEATURE_* defines should be provided by <asm/cputable.h>.
  33    If they aren't, we can provide them ourselves (their values are fixed
  34    because they are part of the kernel ABI).  They are used in the AT_HWCAP
  35    entry of the AUXV.  */
  36 #ifndef PPC_FEATURE_CELL
  37 #define PPC_FEATURE_CELL 0x00010000
  38 #endif
  39 #ifndef PPC_FEATURE_BOOKE
  40 #define PPC_FEATURE_BOOKE 0x00008000
  41 #endif
  42 #ifndef PPC_FEATURE_HAS_DFP
  43 #define PPC_FEATURE_HAS_DFP     0x00000400  /* Decimal Floating Point.  */
  44 #endif
  45 #ifndef PPC_FEATURE_HAS_VSX
  46 #define PPC_FEATURE_HAS_VSX 0x00000080
  47 #endif
  48 #ifndef PPC_FEATURE_HAS_ALTIVEC
  49 #define PPC_FEATURE_HAS_ALTIVEC 0x10000000
  50 #endif
  51 #ifndef PPC_FEATURE_HAS_SPE
  52 #define PPC_FEATURE_HAS_SPE 0x00800000
  53 #endif
  54 #ifndef PPC_FEATURE2_DSCR
  55 #define PPC_FEATURE2_DSCR 0x20000000
  56 #endif
  57
  58 /* Glibc's headers don't define PTRACE_GETVRREGS so we cannot use a
  59    configure time check.  Some older glibc's (for instance 2.2.1)
  60    don't have a specific powerpc version of ptrace.h, and fall back on
  61    a generic one.  In such cases, sys/ptrace.h defines
  62    PTRACE_GETFPXREGS and PTRACE_SETFPXREGS to the same numbers that
  63    ppc kernel's asm/ptrace.h defines PTRACE_GETVRREGS and
  64    PTRACE_SETVRREGS to be.  This also makes a configury check pretty
  65    much useless.  */
  66
  67 /* These definitions should really come from the glibc header files,
  68    but Glibc doesn't know about the vrregs yet.  */
  69 #ifndef PTRACE_GETVRREGS
  70 #define PTRACE_GETVRREGS 18
  71 #define PTRACE_SETVRREGS 19
  72 #endif
  73
  74 /* PTRACE requests for POWER7 VSX registers.  */
  75 #ifndef PTRACE_GETVSXREGS
  76 #define PTRACE_GETVSXREGS 27
  77 #define PTRACE_SETVSXREGS 28
  78 #endif
  79
  80 /* Similarly for the ptrace requests for getting / setting the SPE
  81    registers (ev0 -- ev31, acc, and spefscr).  See the description of
  82    gdb_evrregset_t for details.  */
  83 #ifndef PTRACE_GETEVRREGS
  84 #define PTRACE_GETEVRREGS 20
  85 #define PTRACE_SETEVRREGS 21
  86 #endif
  87
  88 /* Program Priority Register.  */
  89 #ifndef NT_PPC_PPR
  90 #define NT_PPC_PPR 0x104
  91 #endif
  92
  93 /* Data Stream Control Register.  */
  94 #ifndef NT_PPC_DSCR
  95 #define NT_PPC_DSCR 0x105
  96 #endif
  97
  98 /* Return the wordsize of the target, either 4 or 8 bytes.  */
  99 int ppc_linux_target_wordsize (int tid);
 100
 101 #endif