/* Target machine description for SGI Iris under Irix 5, for GDB. Copyright 1990-1993, 1995, 2000 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-irix3.h" /* FIXME: cagney/2000-04-04: Testing the _MIPS_SIM_NABI32 and _MIPS_SIM in a tm-*.h file is simply wrong! Those are host-dependant macros (provided by /usr/include) and stop any chance of the target being cross compiled */ #if defined (_MIPS_SIM_NABI32) && _MIPS_SIM == _MIPS_SIM_NABI32 /* * Irix 6 (n32 ABI) has 32-bit GP regs and 64-bit FP regs */ #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) #undef REGISTER_VIRTUAL_TYPE #define REGISTER_VIRTUAL_TYPE(N) \ (((N) >= FP0_REGNUM && (N) < FP0_REGNUM+32) ? builtin_type_double \ : ((N) == 32 /*SR*/) ? builtin_type_uint32 \ : ((N) >= 70 && (N) <= 89) ? builtin_type_uint32 \ : builtin_type_int) #undef MIPS_LAST_ARG_REGNUM #define MIPS_LAST_ARG_REGNUM 11 /* N32 uses R4 through R11 for args */ /* MIPS_STACK_ARGSIZE -- how many bytes does a pushed function arg take up on the stack? For the n32 ABI, eight bytes are reserved for each register. Like MIPS_SAVED_REGSIZE but different. */ #define MIPS_DEFAULT_STACK_ARGSIZE 8 /* N32 does not reserve home space for registers used to carry parameters. */ #define MIPS_REGS_HAVE_HOME_P 0 /* Force N32 ABI as the default. */ #define MIPS_DEFAULT_ABI MIPS_ABI_N32 #endif /* N32 */ /* The signal handler trampoline is called _sigtramp. */ #undef IN_SIGTRAMP #define IN_SIGTRAMP(pc, name) ((name) && STREQ ("_sigtramp", name)) /* 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