gdb/config/mips/tm-irix5.h

   1 /* Target machine description for SGI Iris under Irix 5, for GDB.
   2    Copyright 1990, 1991, 1992, 1993, 1995 Free Software Foundation, Inc.
   3
   4 This file is part of GDB.
   5
   6 This program is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2 of the License, or
   9 (at your option) any later version.
  10
  11 This program is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with this program; if not, write to the Free Software
  18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  19
  20 #include "mips/tm-irix3.h"
  21
  22 #define FORCE_LONG_LONG
  23
  24 /* When calling functions on Irix 5 (or any MIPS SVR4 ABI compliant
  25    platform) $25 must hold the function address.  Dest_Reg is a macro
  26    used in CALL_DUMMY in tm-mips.h.  */
  27 #undef Dest_Reg
  28 #define Dest_Reg 25
  29
  30 /* The signal handler trampoline is called _sigtramp.  */
  31 #undef IN_SIGTRAMP
  32 #define IN_SIGTRAMP(pc, name) ((name) && STREQ ("_sigtramp", name))
  33
  34 /* Irix 5 saves a full 64 bits for each register.  We skip 2 * 4 to
  35    get to the saved PC (the register mask and status register are both
  36    32 bits) and then another 4 to get to the lower 32 bits.  We skip
  37    the same 4 bytes, plus the 8 bytes for the PC to get to the
  38    registers, and add another 4 to get to the lower 32 bits.  We skip
  39    8 bytes per register.  */
  40 #undef SIGFRAME_PC_OFF
  41 #define SIGFRAME_PC_OFF         (SIGFRAME_BASE + 2 * 4 + 4)
  42 #undef SIGFRAME_REGSAVE_OFF
  43 #define SIGFRAME_REGSAVE_OFF    (SIGFRAME_BASE + 2 * 4 + 8 + 4)
  44 #undef SIGFRAME_FPREGSAVE_OFF
  45 #define SIGFRAME_FPREGSAVE_OFF  (SIGFRAME_BASE + 2 * 4 + 8 + 32 * 8 + 4)
  46 #define SIGFRAME_REG_SIZE       8