gdb/config/mips/tm-irix5.h

   1 /* Target machine description for SGI Iris under Irix 5, for GDB.
   2    Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1998, 2000
   3    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 2 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, write to the Free Software
  19    Foundation, Inc., 59 Temple Place - Suite 330,
  20    Boston, MA 02111-1307, USA.  */
  21
  22 #include "mips/tm-mips.h"
  23
  24 /* Redefine register numbers for SGI. */
  25
  26 #undef MIPS_REGISTER_NAMES
  27
  28 /* Initializer for an array of names for registers 32 and above.
  29    There should be NUM_REGS-32 strings in this initializer.  */
  30
  31 #define MIPS_REGISTER_NAMES     \
  32     {   "f0",   "f1",   "f2",   "f3",   "f4",   "f5",   "f6",   "f7", \
  33         "f8",   "f9",   "f10",  "f11",  "f12",  "f13",  "f14",  "f15", \
  34         "f16",  "f17",  "f18",  "f19",  "f20",  "f21",  "f22",  "f23",\
  35         "f24",  "f25",  "f26",  "f27",  "f28",  "f29",  "f30",  "f31",\
  36         "pc",   "cause", "bad", "hi",   "lo",   "fsr",  "fir" \
  37     }
  38
  39 /* Offsets for register values in _sigtramp frame.
  40    sigcontext is immediately above the _sigtramp frame on Irix.  */
  41 #define SIGFRAME_BASE           0x0
  42 #define SIGFRAME_PC_OFF         (SIGFRAME_BASE + 2 * 4)
  43 #define SIGFRAME_REGSAVE_OFF    (SIGFRAME_BASE + 3 * 4)
  44 #define SIGFRAME_FPREGSAVE_OFF  (SIGFRAME_BASE + 3 * 4 + 32 * 4 + 4)
  45
  46 /* The signal handler trampoline is called _sigtramp.  */
  47 #undef IN_SIGTRAMP
  48 #define IN_SIGTRAMP(pc, name) ((name) && STREQ ("_sigtramp", name))
  49
  50 /* Irix 5 saves a full 64 bits for each register.  We skip 2 * 4 to
  51    get to the saved PC (the register mask and status register are both
  52    32 bits) and then another 4 to get to the lower 32 bits.  We skip
  53    the same 4 bytes, plus the 8 bytes for the PC to get to the
  54    registers, and add another 4 to get to the lower 32 bits.  We skip
  55    8 bytes per register.  */
  56 #undef SIGFRAME_PC_OFF
  57 #define SIGFRAME_PC_OFF         (SIGFRAME_BASE + 2 * 4 + 4)
  58 #undef SIGFRAME_REGSAVE_OFF
  59 #define SIGFRAME_REGSAVE_OFF    (SIGFRAME_BASE + 2 * 4 + 8 + 4)
  60 #undef SIGFRAME_FPREGSAVE_OFF
  61 #define SIGFRAME_FPREGSAVE_OFF  (SIGFRAME_BASE + 2 * 4 + 8 + 32 * 8 + 4)
  62 #define SIGFRAME_REG_SIZE       8