gdb/nat/ppc-linux.h

   1 /* Copyright (C) 1995-2022 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 NAT_PPC_LINUX_H
  19 #define NAT_PPC_LINUX_H
  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_BOOKE
  37 #define PPC_FEATURE_BOOKE 0x00008000
  38 #endif
  39 #ifndef PPC_FEATURE_HAS_DFP
  40 #define PPC_FEATURE_HAS_DFP     0x00000400  /* Decimal Floating Point.  */
  41 #endif
  42 #ifndef PPC_FEATURE_HAS_VSX
  43 #define PPC_FEATURE_HAS_VSX 0x00000080
  44 #endif
  45 #ifndef PPC_FEATURE_HAS_ALTIVEC
  46 #define PPC_FEATURE_HAS_ALTIVEC 0x10000000
  47 #endif
  48 #ifndef PPC_FEATURE_HAS_SPE
  49 #define PPC_FEATURE_HAS_SPE 0x00800000
  50 #endif
  51 #ifndef PPC_FEATURE2_DSCR
  52 #define PPC_FEATURE2_DSCR 0x20000000
  53 #endif
  54 #ifndef PPC_FEATURE2_ARCH_2_07
  55 #define PPC_FEATURE2_ARCH_2_07 0x80000000
  56 #endif
  57 #ifndef PPC_FEATURE2_TAR
  58 #define PPC_FEATURE2_TAR 0x04000000
  59 #endif
  60 #ifndef PPC_FEATURE2_EBB
  61 #define PPC_FEATURE2_EBB 0x10000000
  62 #endif
  63 #ifndef PPC_FEATURE2_HTM
  64 #define PPC_FEATURE2_HTM 0x40000000
  65 #endif
  66
  67 /* Glibc's headers don't define PTRACE_GETVRREGS so we cannot use a
  68    configure time check.  Some older glibc's (for instance 2.2.1)
  69    don't have a specific powerpc version of ptrace.h, and fall back on
  70    a generic one.  In such cases, sys/ptrace.h defines
  71    PTRACE_GETFPXREGS and PTRACE_SETFPXREGS to the same numbers that
  72    ppc kernel's asm/ptrace.h defines PTRACE_GETVRREGS and
  73    PTRACE_SETVRREGS to be.  This also makes a configury check pretty
  74    much useless.  */
  75
  76 /* These definitions should really come from the glibc header files,
  77    but Glibc doesn't know about the vrregs yet.  */
  78 #ifndef PTRACE_GETVRREGS
  79 #define PTRACE_GETVRREGS 18
  80 #define PTRACE_SETVRREGS 19
  81 #endif
  82
  83 /* PTRACE requests for POWER7 VSX registers.  */
  84 #ifndef PTRACE_GETVSXREGS
  85 #define PTRACE_GETVSXREGS 27
  86 #define PTRACE_SETVSXREGS 28
  87 #endif
  88
  89 /* Similarly for the ptrace requests for getting / setting the SPE
  90    registers (ev0 -- ev31, acc, and spefscr).  See the description of
  91    gdb_evrregset_t for details.  */
  92 #ifndef PTRACE_GETEVRREGS
  93 #define PTRACE_GETEVRREGS 20
  94 #define PTRACE_SETEVRREGS 21
  95 #endif
  96
  97 /* Target Address Register.  */
  98 #ifndef NT_PPC_TAR
  99 #define NT_PPC_TAR 0x103
 100 #endif
 101
 102 /* Program Priority Register.  */
 103 #ifndef NT_PPC_PPR
 104 #define NT_PPC_PPR 0x104
 105 #endif
 106
 107 /* Data Stream Control Register.  */
 108 #ifndef NT_PPC_DSCR
 109 #define NT_PPC_DSCR 0x105
 110 #endif
 111
 112 /* Event Based Branch Registers.  */
 113 #ifndef NT_PPC_EBB
 114 #define NT_PPC_EBB 0x106
 115 #endif
 116
 117 /* Performance Monitor Registers.  */
 118 #ifndef NT_PPC_PMU
 119 #define NT_PPC_PMU 0x107
 120 #endif
 121
 122 /* TM checkpointed GPR Registers.  */
 123 #ifndef NT_PPC_TM_CGPR
 124 #define NT_PPC_TM_CGPR 0x108
 125 #endif
 126
 127 /* TM checkpointed FPR Registers.  */
 128 #ifndef NT_PPC_TM_CFPR
 129 #define NT_PPC_TM_CFPR 0x109
 130 #endif
 131
 132 /* TM checkpointed VMX Registers.  */
 133 #ifndef NT_PPC_TM_CVMX
 134 #define NT_PPC_TM_CVMX 0x10a
 135 #endif
 136
 137 /* TM checkpointed VSX Registers.  */
 138 #ifndef NT_PPC_TM_CVSX
 139 #define NT_PPC_TM_CVSX 0x10b
 140 #endif
 141
 142 /* TM Special Purpose Registers.  */
 143 #ifndef NT_PPC_TM_SPR
 144 #define NT_PPC_TM_SPR 0x10c
 145 #endif
 146
 147 /* TM checkpointed Target Address Register.  */
 148 #ifndef NT_PPC_TM_CTAR
 149 #define NT_PPC_TM_CTAR 0x10d
 150 #endif
 151
 152 /* TM checkpointed Program Priority Register.  */
 153 #ifndef NT_PPC_TM_CPPR
 154 #define NT_PPC_TM_CPPR 0x10e
 155 #endif
 156
 157 /* TM checkpointed Data Stream Control Register.  */
 158 #ifndef NT_PPC_TM_CDSCR
 159 #define NT_PPC_TM_CDSCR 0x10f
 160 #endif
 161
 162 /* Return the wordsize of the target, either 4 or 8 bytes.  */
 163 int ppc_linux_target_wordsize (int tid);
 164
 165 #endif /* NAT_PPC_LINUX_H */