diff options
Diffstat (limited to 'gdb/config/mips/tm-irix5.h')
| -rw-r--r-- | gdb/config/mips/tm-irix5.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/gdb/config/mips/tm-irix5.h b/gdb/config/mips/tm-irix5.h new file mode 100644 index 00000000000..ad98e881859 --- /dev/null +++ b/gdb/config/mips/tm-irix5.h @@ -0,0 +1,75 @@ +/* Target machine description for SGI Iris under Irix 5, for GDB. + Copyright 1990, 1991, 1992, 1993, 1995 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" + +#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 */ + +#undef MIPS_NUM_ARG_REGS +#define MIPS_NUM_ARG_REGS 8 + +#endif /* N32 */ + +/* When calling functions on Irix 5 (or any MIPS SVR4 ABI compliant + platform) $25 must hold the function address. Dest_Reg is a macro + used in CALL_DUMMY in tm-mips.h. */ +#undef Dest_Reg +#define Dest_Reg 25 + +/* 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 |