/* dbgSimntLib.h - header file for arch dependent portion of debugger */

/* Copyright 1998-2004 Wind River Systems, Inc. */

/*
modification history
--------------------
01e,18may04,jmp  fixed instrI86.h reference.
01d,07apr04,jmp  adapted to share trcArchLib between VxSim/i86 and i86 arches.
01c,11feb04,elg  Add syscall instruction size macro.
01b,09feb04,jeg  added DSM() macro definition
01a,29apr98,cym  written based on x86 version.
*/

#ifndef __INCdbgSimntLibh
#define __INCdbgSimntLibh

#ifdef __cplusplus
extern "C" {
#endif

/* includes */

#if (CPU==SIMNT)
#include "arch/simnt/instrI86.h"
#elif (CPU==SIMLINUX)
#include "arch/simlinux/instrI86.h"
#endif

/* defines */

#define BRK_INST	0x1000		/* instruction hardware breakpoint */
#define BRK_DATAW1	0x1400		/* data write 1 byte breakpoint */
#define BRK_DATAW2	0x1500		/* data write 2 byte breakpoint */
#define BRK_DATAW4	0x1700		/* data write 4 byte breakpoint */
#define BRK_DATARW1	0x1c00		/* data read-write 1 byte breakpoint */
#define BRK_DATARW2	0x1d00		/* data read-write 2 byte breakpoint */
#define BRK_DATARW4	0x1f00		/* data read-write 4 byte breakpoint */

#define BRK_HARDWARE	0x1000		/* hardware breakpoint bit */
#define BRK_HARDMASK	0x1f00		/* hardware breakpoint mask */

#define TRACE_FLAG	(0x0100)	/* TF in EFLAGS */
#define INT_FLAG	(0x0200)	/* IF in EFLAGS */

#define DBG_INST_ALIGN	(1)

#ifndef _ASMLANGUAGE

#define BREAK_INST		0xcc	/* int 3 */
#define DBG_BREAK_INST		0xcc	/* int 3 */
#define	DBG_SYSCALL_SIZE	2
#define BREAK_ESF EXC_INFO
#define TRACE_ESF EXC_INFO

/* offsets to register fields in type REG_SET */

#define EDI			(0)
#define ESI			(1)
#define EBP			(2)
#define ESP			(3)
#define EBX			(4)
#define EDX			(5)
#define ECX			(6)
#define EAX			(7)
#define EFLAGS			(8)

#define _WRS_TRC_ARGS_COUNT	5       /* number of arguments to print in */
                                        /* stack trace */

/* macros */

#define DSM(addr,inst,mask) ((*(addr) & (mask)) == (inst))

/* hardware breakpoint registers */

typedef struct              /* DBG_REGS */
    {
    unsigned int    db0;    /* debug register 0 */
    unsigned int    db1;    /* debug register 1 */
    unsigned int    db2;    /* debug register 2 */
    unsigned int    db3;    /* debug register 3 */
    unsigned int    db6;    /* debug register 6 */
    unsigned int    db7;    /* debug register 7 */

    } DBG_REGS;

#endif	/* _ASMLANGUAGE */

#ifdef __cplusplus
}
#endif

#endif /* INCdbgSimntLibh */