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/* i386/gdb.h - i386 specific definitions for the remote GDB stub */
/*
* Copyright (C) 2006 Lubomir Kundrak
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef GRUB_GDB_CPU_HEADER
#define GRUB_GDB_CPU_HEADER 1
#define GRUB_GDB_LAST_TRAP 31
/* You may have to edit the bottom of machdep.S when adjusting
GRUB_GDB_LAST_TRAP. */
#define GRUB_MACHINE_NR_REGS 16
#define EAX 0
#define ECX 1
#define EDX 2
#define EBX 3
#define ESP 4
#define EBP 5
#define ESI 6
#define EDI 7
#define EIP 8
#define EFLAGS 9
#define CS 10
#define SS 11
#define DS 12
#define ES 13
#define FS 14
#define GS 15
#define PC EIP
#define FP EBP
#define SP ESP
#define PS EFLAGS
#ifndef ASM_FILE
#include <grub/gdb.h>
#define GRUB_CPU_TRAP_GATE 15
struct grub_cpu_interrupt_gate
{
grub_uint16_t offset_lo;
grub_uint16_t selector;
grub_uint8_t unused;
grub_uint8_t gate;
grub_uint16_t offset_hi;
} GRUB_PACKED;
struct grub_cpu_idt_descriptor
{
grub_uint16_t limit;
grub_uint32_t base;
} GRUB_PACKED;
extern void (*grub_gdb_trapvec[]) (void);
void grub_gdb_idtinit (void);
void grub_gdb_idtrestore (void);
void grub_gdb_trap (int trap_no) __attribute__ ((regparm(3)));
#endif /* ! ASM */
#endif /* ! GRUB_GDB_CPU_HEADER */
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