[deliverable/linux.git] / arch / x86 / include / asm / kgdb.h

#ifndef _ASM_X86_KGDB_H
#define _ASM_X86_KGDB_H

/*
 * Copyright (C) 2001-2004 Amit S. Kale
 * Copyright (C) 2008 Wind River Systems, Inc.
 */

/*
 * BUFMAX defines the maximum number of characters in inbound/outbound
 * buffers at least NUMREGBYTES*2 are needed for register packets
 * Longer buffer is needed to list all threads
 */
#define BUFMAX			1024

/*
 *  Note that this register image is in a different order than
 *  the register image that Linux produces at interrupt time.
 *
 *  Linux's register image is defined by struct pt_regs in ptrace.h.
 *  Just why GDB uses a different order is a historical mystery.
 */
#ifdef CONFIG_X86_32
enum regnames {
	GDB_AX,			/* 0 */
	GDB_CX,			/* 1 */
	GDB_DX,			/* 2 */
	GDB_BX,			/* 3 */
	GDB_SP,			/* 4 */
	GDB_BP,			/* 5 */
	GDB_SI,			/* 6 */
	GDB_DI,			/* 7 */
	GDB_PC,			/* 8 also known as eip */
	GDB_PS,			/* 9 also known as eflags */
	GDB_CS,			/* 10 */
	GDB_SS,			/* 11 */
	GDB_DS,			/* 12 */
	GDB_ES,			/* 13 */
	GDB_FS,			/* 14 */
	GDB_GS,			/* 15 */
};
#define GDB_ORIG_AX		41
#define DBG_MAX_REG_NUM		16
#define NUMREGBYTES		((GDB_GS+1)*4)
#else /* ! CONFIG_X86_32 */
enum regnames {
	GDB_AX,			/* 0 */
	GDB_BX,			/* 1 */
	GDB_CX,			/* 2 */
	GDB_DX,			/* 3 */
	GDB_SI,			/* 4 */
	GDB_DI,			/* 5 */
	GDB_BP,			/* 6 */
	GDB_SP,			/* 7 */
	GDB_R8,			/* 8 */
	GDB_R9,			/* 9 */
	GDB_R10,		/* 10 */
	GDB_R11,		/* 11 */
	GDB_R12,		/* 12 */
	GDB_R13,		/* 13 */
	GDB_R14,		/* 14 */
	GDB_R15,		/* 15 */
	GDB_PC,			/* 16 */
	GDB_PS,			/* 17 */
	GDB_CS,			/* 18 */
	GDB_SS,			/* 19 */
	GDB_DS,			/* 20 */
	GDB_ES,			/* 21 */
	GDB_FS,			/* 22 */
	GDB_GS,			/* 23 */
};
#define GDB_ORIG_AX		57
#define DBG_MAX_REG_NUM		24
/* 17 64 bit regs and 5 32 bit regs */
#define NUMREGBYTES		((17 * 8) + (5 * 4))
#endif /* ! CONFIG_X86_32 */

static inline void arch_kgdb_breakpoint(void)
{
	asm("   int $3");
}
#define BREAK_INSTR_SIZE	1
#define CACHE_FLUSH_IS_SAFE	1
#define GDB_ADJUSTS_BREAK_OFFSET

extern int kgdb_ll_trap(int cmd, const char *str,
			struct pt_regs *regs, long err, int trap, int sig);

#endif /* _ASM_X86_KGDB_H */
Commit	Line	Data
	1	#ifndef _ASM_X86_KGDB_H
	2	#define _ASM_X86_KGDB_H
	3
	4	/*
	5	* Copyright (C) 2001-2004 Amit S. Kale
	6	* Copyright (C) 2008 Wind River Systems, Inc.
	7	*/
	8
	9	/*
	10	* BUFMAX defines the maximum number of characters in inbound/outbound
	11	* buffers at least NUMREGBYTES*2 are needed for register packets
	12	* Longer buffer is needed to list all threads
	13	*/
	14	#define BUFMAX 1024
	15
	16	/*
	17	* Note that this register image is in a different order than
	18	* the register image that Linux produces at interrupt time.
	19	*
	20	* Linux's register image is defined by struct pt_regs in ptrace.h.
	21	* Just why GDB uses a different order is a historical mystery.
	22	*/
	23	#ifdef CONFIG_X86_32
	24	enum regnames {
	25	GDB_AX, /* 0 */
	26	GDB_CX, /* 1 */
	27	GDB_DX, /* 2 */
	28	GDB_BX, /* 3 */
	29	GDB_SP, /* 4 */
	30	GDB_BP, /* 5 */
	31	GDB_SI, /* 6 */
	32	GDB_DI, /* 7 */
	33	GDB_PC, /* 8 also known as eip */
	34	GDB_PS, /* 9 also known as eflags */
	35	GDB_CS, /* 10 */
	36	GDB_SS, /* 11 */
	37	GDB_DS, /* 12 */
	38	GDB_ES, /* 13 */
	39	GDB_FS, /* 14 */
	40	GDB_GS, /* 15 */
	41	};
	42	#define GDB_ORIG_AX 41
	43	#define DBG_MAX_REG_NUM 16
	44	#define NUMREGBYTES ((GDB_GS+1)*4)
	45	#else /* ! CONFIG_X86_32 */
	46	enum regnames {
	47	GDB_AX, /* 0 */
	48	GDB_BX, /* 1 */
	49	GDB_CX, /* 2 */
	50	GDB_DX, /* 3 */
	51	GDB_SI, /* 4 */
	52	GDB_DI, /* 5 */
	53	GDB_BP, /* 6 */
	54	GDB_SP, /* 7 */
	55	GDB_R8, /* 8 */
	56	GDB_R9, /* 9 */
	57	GDB_R10, /* 10 */
	58	GDB_R11, /* 11 */
	59	GDB_R12, /* 12 */
	60	GDB_R13, /* 13 */
	61	GDB_R14, /* 14 */
	62	GDB_R15, /* 15 */
	63	GDB_PC, /* 16 */
	64	GDB_PS, /* 17 */
	65	GDB_CS, /* 18 */
	66	GDB_SS, /* 19 */
	67	GDB_DS, /* 20 */
	68	GDB_ES, /* 21 */
	69	GDB_FS, /* 22 */
	70	GDB_GS, /* 23 */
	71	};
	72	#define GDB_ORIG_AX 57
	73	#define DBG_MAX_REG_NUM 24
	74	/* 17 64 bit regs and 5 32 bit regs */
	75	#define NUMREGBYTES ((17 * 8) + (5 * 4))
	76	#endif /* ! CONFIG_X86_32 */
	77
	78	static inline void arch_kgdb_breakpoint(void)
	79	{
	80	asm(" int $3");
	81	}
	82	#define BREAK_INSTR_SIZE 1
	83	#define CACHE_FLUSH_IS_SAFE 1
	84	#define GDB_ADJUSTS_BREAK_OFFSET
	85
	86	extern int kgdb_ll_trap(int cmd, const char *str,
	87	struct pt_regs *regs, long err, int trap, int sig);
	88
	89	#endif /* _ASM_X86_KGDB_H */