118 lines
4.3 KiB
C
118 lines
4.3 KiB
C
/* 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
|