86 lines
2.5 KiB
C
86 lines
2.5 KiB
C
/* Target-dependent code for the Motorola 68000 series.
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Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1999, 2000,
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2001, 2003, 2004 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef M68K_TDEP_H
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#define M68K_TDEP_H
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struct frame_info;
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/* Register numbers of various important registers. */
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enum m68k_regnum
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{
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M68K_D0_REGNUM = 0,
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M68K_D1_REGNUM = 1,
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M68K_A0_REGNUM = 8,
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M68K_A1_REGNUM = 9,
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M68K_FP_REGNUM = 14, /* Address of executing stack frame. */
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M68K_SP_REGNUM = 15, /* Address of top of stack. */
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M68K_PS_REGNUM = 16, /* Processor status. */
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M68K_PC_REGNUM = 17, /* Program counter. */
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M68K_FP0_REGNUM = 18, /* Floating point register 0. */
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M68K_FPC_REGNUM = 26, /* 68881 control register. */
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M68K_FPS_REGNUM = 27, /* 68881 status register. */
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M68K_FPI_REGNUM = 28
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};
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/* Number of machine registers. */
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#define M68K_NUM_REGS (M68K_FPI_REGNUM + 1)
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/* Size of the largest register. */
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#define M68K_MAX_REGISTER_SIZE 12
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struct m68k_sigtramp_info
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{
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/* Address of sigcontext. */
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CORE_ADDR sigcontext_addr;
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/* Offset of registers in `struct sigcontext'. */
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int *sc_reg_offset;
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};
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/* Convention for returning structures. */
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enum struct_return
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{
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pcc_struct_return, /* Return "short" structures in memory. */
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reg_struct_return /* Return "short" structures in registers. */
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};
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/* Target-dependent structure in gdbarch. */
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struct gdbarch_tdep
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{
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/* Offset to PC value in the jump buffer. If this is negative,
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longjmp support will be disabled. */
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int jb_pc;
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/* The size of each entry in the jump buffer. */
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size_t jb_elt_size;
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/* Get info about sigtramp. */
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struct m68k_sigtramp_info (*get_sigtramp_info) (struct frame_info *);
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/* Convention for returning structures. */
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enum struct_return struct_return;
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};
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#endif /* m68k-tdep.h */
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