| /* Target machine description for SGI Iris under Irix 6.x, for GDB. |
| |
| Copyright 2001, 2002 Free Software Foundation, Inc. |
| |
| This file is part of GDB. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| #include "mips/tm-bigmips64.h" |
| |
| /* SGI's assembler doesn't grok dollar signs in identifiers. |
| So we use dots instead. This item must be coordinated with G++. */ |
| #undef CPLUS_MARKER |
| #define CPLUS_MARKER '.' |
| |
| /* Redefine register numbers for SGI. */ |
| |
| #undef NUM_REGS |
| #undef MIPS_REGISTER_NAMES |
| #undef FP0_REGNUM |
| #undef PC_REGNUM |
| #undef HI_REGNUM |
| #undef LO_REGNUM |
| #undef CAUSE_REGNUM |
| #undef BADVADDR_REGNUM |
| #undef FCRCS_REGNUM |
| #undef FCRIR_REGNUM |
| |
| /* Number of machine registers */ |
| |
| #define NUM_REGS 71 |
| |
| /* Initializer for an array of names of registers. |
| There should be NUM_REGS strings in this initializer. */ |
| |
| #define MIPS_REGISTER_NAMES \ |
| { "zero", "at", "v0", "v1", "a0", "a1", "a2", "a3", \ |
| "a4", "a5", "a6", "a7", "t0", "t1", "t2", "t3", \ |
| "s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7", \ |
| "t8", "t9", "k0", "k1", "gp", "sp", "s8", "ra", \ |
| "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", \ |
| "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", \ |
| "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23",\ |
| "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31",\ |
| "pc", "cause", "bad", "hi", "lo", "fsr", "fir" \ |
| } |
| |
| /* Register numbers of various important registers. |
| Note that some of these values are "real" register numbers, |
| and correspond to the general registers of the machine, |
| and some are "phony" register numbers which are too large |
| to be actual register numbers as far as the user is concerned |
| but do serve to get the desired values when passed to read_register. */ |
| |
| #define FP0_REGNUM 32 /* Floating point register 0 (single float) */ |
| #define PC_REGNUM 64 /* Contains program counter */ |
| #define CAUSE_REGNUM 65 /* describes last exception */ |
| #define BADVADDR_REGNUM 66 /* bad vaddr for addressing exception */ |
| #define HI_REGNUM 67 /* Multiple/divide temp */ |
| #define LO_REGNUM 68 /* ... */ |
| #define FCRCS_REGNUM 69 /* FP control/status */ |
| #define FCRIR_REGNUM 70 /* FP implementation/revision */ |
| |
| |
| #undef REGISTER_BYTES |
| #define REGISTER_BYTES (MIPS_NUMREGS * 8 + (NUM_REGS - MIPS_NUMREGS) * MIPS_REGSIZE) |
| |
| #undef REGISTER_BYTE |
| #define REGISTER_BYTE(N) \ |
| (((N) < FP0_REGNUM) ? (N) * MIPS_REGSIZE : \ |
| ((N) < FP0_REGNUM + 32) ? \ |
| FP0_REGNUM * MIPS_REGSIZE + \ |
| ((N) - FP0_REGNUM) * sizeof(double) : \ |
| 32 * sizeof(double) + ((N) - 32) * MIPS_REGSIZE) |
| |
| /* The signal handler trampoline is called _sigtramp. */ |
| #undef IN_SIGTRAMP |
| #define IN_SIGTRAMP(pc, name) ((name) && STREQ ("_sigtramp", name)) |
| |
| /* Offsets for register values in _sigtramp frame. |
| sigcontext is immediately above the _sigtramp frame on Irix. */ |
| #undef SIGFRAME_BASE |
| #define SIGFRAME_BASE 0 |
| |
| /* Irix 5 saves a full 64 bits for each register. We skip 2 * 4 to |
| get to the saved PC (the register mask and status register are both |
| 32 bits) and then another 4 to get to the lower 32 bits. We skip |
| the same 4 bytes, plus the 8 bytes for the PC to get to the |
| registers, and add another 4 to get to the lower 32 bits. We skip |
| 8 bytes per register. */ |
| #undef SIGFRAME_PC_OFF |
| #define SIGFRAME_PC_OFF (SIGFRAME_BASE + 2 * 4 + 4) |
| #undef SIGFRAME_REGSAVE_OFF |
| #define SIGFRAME_REGSAVE_OFF (SIGFRAME_BASE + 2 * 4 + 8 + 4) |
| #undef SIGFRAME_FPREGSAVE_OFF |
| #define SIGFRAME_FPREGSAVE_OFF (SIGFRAME_BASE + 2 * 4 + 8 + 32 * 8 + 4) |
| #define SIGFRAME_REG_SIZE 8 |
| |
| /* Select the disassembler */ |
| #undef TM_PRINT_INSN_MACH |
| #define TM_PRINT_INSN_MACH bfd_mach_mips8000 |
| |
| /* Undefine those methods which have been multiarched. */ |
| #undef REGISTER_VIRTUAL_TYPE |