[linux-2.6-block.git] / include / asm-x86 / 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 NUMREGBYTES		((GDB_GS+1)*4)
#else /* ! CONFIG_X86_32 */
enum regnames64 {
	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 */
};

enum regnames32 {
	GDB_PS = 34,
	GDB_CS,
	GDB_SS,
};
#define NUMREGBYTES		((GDB_SS+1)*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

#endif /* ASM_X86__KGDB_H */
Commit	Line	Data
77ef50a5 VN	1	#ifndef ASM_X86__KGDB_H
77ef50a5 VN	2	#define ASM_X86__KGDB_H
82da3ff8 IM	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	};
703a1edc	42	#define NUMREGBYTES ((GDB_GS+1)*4)
82da3ff8	43	#else /* ! CONFIG_X86_32 */
703a1edc	44	enum regnames64 {
82da3ff8	45	GDB_AX, /* 0 */
95dbf1db	46	GDB_BX, /* 1 */
82da3ff8	47	GDB_CX, /* 2 */
95dbf1db	48	GDB_DX, /* 3 */
82da3ff8 IM	49	GDB_SI, /* 4 */
	50	GDB_DI, /* 5 */
	51	GDB_BP, /* 6 */
	52	GDB_SP, /* 7 */
	53	GDB_R8, /* 8 */
	54	GDB_R9, /* 9 */
	55	GDB_R10, /* 10 */
	56	GDB_R11, /* 11 */
	57	GDB_R12, /* 12 */
	58	GDB_R13, /* 13 */
	59	GDB_R14, /* 14 */
	60	GDB_R15, /* 15 */
	61	GDB_PC, /* 16 */
82da3ff8	62	};
82da3ff8	63
703a1edc JW	64	enum regnames32 {
	65	GDB_PS = 34,
	66	GDB_CS,
	67	GDB_SS,
	68	};
	69	#define NUMREGBYTES ((GDB_SS+1)*4)
	70	#endif /* CONFIG_X86_32 */
82da3ff8 IM	71
	72	static inline void arch_kgdb_breakpoint(void)
	73	{
	74	asm(" int $3");
	75	}
	76	#define BREAK_INSTR_SIZE 1
	77	#define CACHE_FLUSH_IS_SAFE 1
	78
77ef50a5	79	#endif /* ASM_X86__KGDB_H */