| /* Common target dependent code for the Motorola 68000 series. |
| Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2001, 2003 |
| 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. */ |
| |
| #ifndef M68K_TDEP_H |
| #define M68K_TDEP_H |
| |
| struct frame_info; |
| |
| /* 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. */ |
| |
| enum |
| { |
| M68K_D0_REGNUM = 0, |
| M68K_D1_REGNUM = 1, |
| M68K_A0_REGNUM = 8, |
| M68K_A1_REGNUM = 9, |
| M68K_FP_REGNUM = 14, /* Contains address of executing stack frame */ |
| M68K_SP_REGNUM = 15, /* Contains address of top of stack */ |
| M68K_PS_REGNUM = 16, /* Contains processor status */ |
| M68K_PC_REGNUM = 17, /* Contains program counter */ |
| M68K_FP0_REGNUM = 18, /* Floating point register 0 */ |
| M68K_FPC_REGNUM = 26, /* 68881 control register */ |
| M68K_FPS_REGNUM = 27, /* 68881 status register */ |
| M68K_FPI_REGNUM = 28 |
| }; |
| |
| #define M68K_NUM_REGS (M68K_FPI_REGNUM + 1) |
| |
| /* Size of the largest register. */ |
| #define M68K_MAX_REGISTER_SIZE 12 |
| |
| struct m68k_sigtramp_info |
| { |
| /* Address of sigcontext. */ |
| CORE_ADDR sigcontext_addr; |
| |
| /* Offset of registers in `struct sigcontext'. */ |
| int *sc_reg_offset; |
| }; |
| |
| /* Convention for returning structures. */ |
| |
| enum struct_return |
| { |
| pcc_struct_return, /* Return "short" structures in memory. */ |
| reg_struct_return /* Return "short" structures in registers. */ |
| }; |
| |
| /* Target-dependent structure in gdbarch. */ |
| struct gdbarch_tdep |
| { |
| /* Offset to PC value in the jump buffer. If this is negative, |
| longjmp support will be disabled. */ |
| int jb_pc; |
| /* The size of each entry in the jump buffer. */ |
| size_t jb_elt_size; |
| |
| /* Get info about sigtramp. */ |
| struct m68k_sigtramp_info (*get_sigtramp_info) (struct frame_info *); |
| |
| /* Convention for returning structures. */ |
| enum struct_return struct_return; |
| }; |
| |
| #endif /* M68K_TDEP_H */ |