gdb_stub.h

ADAM2 sources (modified by Oleg)

/*-----------------------------------------------------------------------------*/
/*                                                                             */
/*   Copyright (C) 1999-2003 by Texas Instruments, Inc.  All rights reserved.  */
/*   Copyright (C) 2001-2003 Telogy Networks.	    						   */
/*                                                                             */
/*-----------------------------------------------------------------------------*/

/************************************************************************
 *
 *  gdb_stub.h
 *
 *  Definition of layout of register structure for context save
 *  This is how GDB expects it.
 *
 * ######################################################################
 *
 * Copyright (C) 1999 MIPS Technologies, Inc. All rights reserved.
 *
 * Unpublished rights reserved under the Copyright Laws of the United
 * States of America.
 *
 * This document contains information that is confidential and proprietary
 * to MIPS Technologies, Inc. and may be disclosed only to those employees
 * of MIPS Technologies, Inc. with a need to know, or as otherwise
 * permitted in writing by MIPS Technologies, Inc. or a
 * contractually-authorized third party. Any copying, modifying, use or
 * disclosure of this information (in whole or in part) which is not
 * expressly permitted in writing by MIPS Technologies, Inc. or a
 * contractually-authorized third party is strictly prohibited. At a
 * minimum, this information is protected under trade secret and unfair
 * competition laws and the expression of the information contained herein
 * is protected under federal copyright laws. Violations thereof may
 * result in criminal penalties and fines.
 *
 * MIPS Technologies, Inc. or any contractually-authorized third party
 * reserves the right to change the information contained in this document
 * to improve function, design or otherwise. MIPS Technologies, Inc. does
 * not assume any liability arising out of the application or use of this
 * information. Any license under patent rights or any other intellectual
 * property rights owned by MIPS Technologies or third parties shall be
 * conveyed by MIPS Technologies, Inc. or any contractually-authorized
 * third party in a separate license agreement fully executed by the
 * parties.
 *
 * The information contained in this document constitutes "Commercial
 * Computer Software" or "Commercial Computer Software Documentation," as
 * described in FAR 12.212 for civilian agencies, and DFARS 227.7202 for
 * military agencies. This information may only be disclosed to the U.S.
 * Government, or to U.S. Government users, with prior written consent from
 * MIPS Technologies, Inc. or a contractually-authorized third party. Such
 * disclosure to the U.S. Government, or to U.S. Government users, shall
 * be subject to license terms and conditions at least as restrictive and
 * protective of the confidentiality of this information as the terms and
 * conditions used by MIPS Technologies, Inc. in its license agreements
 * covering this information.
 *
 ************************************************************************/


#ifndef GDB_STUB_H
#define GDB_STUB_H


/************************************************************************
 *  Include files
 ************************************************************************/

#include "sysdefs.h"

/************************************************************************
 *  Definitions
*************************************************************************/

/************************************************************************
 *  Public variables
 ************************************************************************/

/************************************************************************
 *  Public functions
 ************************************************************************/


/*
 * Stack layout for the GDB exception handler
 * Derived from the stack layout described in asm-mips/stackframe.h
 *
 * The first PTRSIZE*5 bytes are argument save space for C subroutines.
 */
#define GDB_NUMREGS		90

#define GDB_FR_REG0		(0)				/* 0 */
#define GDB_FR_REG1		((GDB_FR_REG0) + 4)		/* 1 */
#define GDB_FR_REG2		((GDB_FR_REG1) + 4)		/* 2 */
#define GDB_FR_REG3		((GDB_FR_REG2) + 4)		/* 3 */
#define GDB_FR_REG4		((GDB_FR_REG3) + 4)		/* 4 */
#define GDB_FR_REG5		((GDB_FR_REG4) + 4)		/* 5 */
#define GDB_FR_REG6		((GDB_FR_REG5) + 4)		/* 6 */
#define GDB_FR_REG7		((GDB_FR_REG6) + 4)		/* 7 */
#define GDB_FR_REG8		((GDB_FR_REG7) + 4)		/* 8 */
#define GDB_FR_REG9	        ((GDB_FR_REG8) + 4)		/* 9 */
#define GDB_FR_REG10		((GDB_FR_REG9) + 4)		/* 10 */
#define GDB_FR_REG11		((GDB_FR_REG10) + 4)		/* 11 */
#define GDB_FR_REG12		((GDB_FR_REG11) + 4)		/* 12 */
#define GDB_FR_REG13		((GDB_FR_REG12) + 4)		/* 13 */
#define GDB_FR_REG14		((GDB_FR_REG13) + 4)		/* 14 */
#define GDB_FR_REG15		((GDB_FR_REG14) + 4)		/* 15 */
#define GDB_FR_REG16		((GDB_FR_REG15) + 4)		/* 16 */
#define GDB_FR_REG17		((GDB_FR_REG16) + 4)		/* 17 */
#define GDB_FR_REG18		((GDB_FR_REG17) + 4)		/* 18 */
#define GDB_FR_REG19		((GDB_FR_REG18) + 4)		/* 19 */
#define GDB_FR_REG20		((GDB_FR_REG19) + 4)		/* 20 */
#define GDB_FR_REG21		((GDB_FR_REG20) + 4)		/* 21 */
#define GDB_FR_REG22		((GDB_FR_REG21) + 4)		/* 22 */
#define GDB_FR_REG23		((GDB_FR_REG22) + 4)		/* 23 */
#define GDB_FR_REG24		((GDB_FR_REG23) + 4)		/* 24 */
#define GDB_FR_REG25		((GDB_FR_REG24) + 4)		/* 25 */
#define GDB_FR_REG26		((GDB_FR_REG25) + 4)		/* 26 */
#define GDB_FR_REG27		((GDB_FR_REG26) + 4)		/* 27 */
#define GDB_FR_REG28		((GDB_FR_REG27) + 4)		/* 28 */
#define GDB_FR_REG29		((GDB_FR_REG28) + 4)		/* 29 */
#define GDB_FR_REG30		((GDB_FR_REG29) + 4)		/* 30 */
#define GDB_FR_REG31		((GDB_FR_REG30) + 4)		/* 31 */
	
/*
 * Saved special registers
 */
#define GDB_FR_STATUS		((GDB_FR_REG31) + 4)		/* 32 */
#define GDB_FR_LO		((GDB_FR_STATUS) + 4)		/* 33 */
#define GDB_FR_HI		((GDB_FR_LO) + 4)		/* 34 */
#define GDB_FR_BADVADDR		((GDB_FR_HI) + 4)		/* 35 */
#define GDB_FR_CAUSE		((GDB_FR_BADVADDR) + 4)		/* 36 */
#define GDB_FR_EPC		((GDB_FR_CAUSE) + 4)		/* 37 */

/*
 * Saved floating point registers
 */
#define GDB_FR_FPR0		((GDB_FR_EPC) + 4)		/* 38 */
#define GDB_FR_FPR1		((GDB_FR_FPR0) + 4)		/* 39 */
#define GDB_FR_FPR2		((GDB_FR_FPR1) + 4)		/* 40 */
#define GDB_FR_FPR3		((GDB_FR_FPR2) + 4)		/* 41 */
#define GDB_FR_FPR4		((GDB_FR_FPR3) + 4)		/* 42 */
#define GDB_FR_FPR5		((GDB_FR_FPR4) + 4)		/* 43 */
#define GDB_FR_FPR6		((GDB_FR_FPR5) + 4)		/* 44 */
#define GDB_FR_FPR7		((GDB_FR_FPR6) + 4)		/* 45 */
#define GDB_FR_FPR8		((GDB_FR_FPR7) + 4)		/* 46 */
#define GDB_FR_FPR9		((GDB_FR_FPR8) + 4)		/* 47 */
#define GDB_FR_FPR10		((GDB_FR_FPR9) + 4)		/* 48 */
#define GDB_FR_FPR11		((GDB_FR_FPR10) + 4)		/* 49 */
#define GDB_FR_FPR12		((GDB_FR_FPR11) + 4)		/* 50 */
#define GDB_FR_FPR13		((GDB_FR_FPR12) + 4)		/* 51 */
#define GDB_FR_FPR14		((GDB_FR_FPR13) + 4)		/* 52 */
#define GDB_FR_FPR15		((GDB_FR_FPR14) + 4)		/* 53 */
#define GDB_FR_FPR16		((GDB_FR_FPR15) + 4)		/* 54 */
#define GDB_FR_FPR17		((GDB_FR_FPR16) + 4)		/* 55 */
#define GDB_FR_FPR18		((GDB_FR_FPR17) + 4)		/* 56 */
#define GDB_FR_FPR19		((GDB_FR_FPR18) + 4)		/* 57 */
#define GDB_FR_FPR20		((GDB_FR_FPR19) + 4)		/* 58 */
#define GDB_FR_FPR21		((GDB_FR_FPR20) + 4)		/* 59 */
#define GDB_FR_FPR22		((GDB_FR_FPR21) + 4)		/* 60 */
#define GDB_FR_FPR23		((GDB_FR_FPR22) + 4)		/* 61 */
#define GDB_FR_FPR24		((GDB_FR_FPR23) + 4)		/* 62 */
#define GDB_FR_FPR25		((GDB_FR_FPR24) + 4)		/* 63 */
#define GDB_FR_FPR26		((GDB_FR_FPR25) + 4)		/* 64 */
#define GDB_FR_FPR27		((GDB_FR_FPR26) + 4)		/* 65 */
#define GDB_FR_FPR28		((GDB_FR_FPR27) + 4)		/* 66 */
#define GDB_FR_FPR29		((GDB_FR_FPR28) + 4)		/* 67 */
#define GDB_FR_FPR30		((GDB_FR_FPR29) + 4)		/* 68 */
#define GDB_FR_FPR31		((GDB_FR_FPR30) + 4)		/* 69 */

#define GDB_FR_FSR		((GDB_FR_FPR31) + 4)		/* 70 */
#define GDB_FR_FIR		((GDB_FR_FSR) + 4)		/* 71 */
#define GDB_FR_FRP		((GDB_FR_FIR) + 4)		/* 72 */

#define GDB_FR_DUMMY		((GDB_FR_FRP) + 4)		/* 73, unused ??? */

/*
 * Again, CP0 registers
 */
#define GDB_FR_CP0_INDEX	((GDB_FR_DUMMY) + 4)		/* 74 */
#define GDB_FR_CP0_RANDOM	((GDB_FR_CP0_INDEX) + 4)	/* 75 */
#define GDB_FR_CP0_ENTRYLO0	((GDB_FR_CP0_RANDOM) + 4)	/* 76 */
#define GDB_FR_CP0_ENTRYLO1	((GDB_FR_CP0_ENTRYLO0) + 4)	/* 77 */
#define GDB_FR_CP0_CONTEXT	((GDB_FR_CP0_ENTRYLO1) + 4)	/* 78 */
#define GDB_FR_CP0_PAGEMASK	((GDB_FR_CP0_CONTEXT) + 4)	/* 79 */
#define GDB_FR_CP0_WIRED	((GDB_FR_CP0_PAGEMASK) + 4)	/* 80 */
#define GDB_FR_CP0_REG7		((GDB_FR_CP0_WIRED) + 4)	/* 81 */
#define GDB_FR_CP0_REG8		((GDB_FR_CP0_REG7) + 4)		/* 82 */
#define GDB_FR_CP0_REG9		((GDB_FR_CP0_REG8) + 4)		/* 83 */
#define GDB_FR_CP0_ENTRYHI	((GDB_FR_CP0_REG9) + 4)		/* 84 */
#define GDB_FR_CP0_REG11	((GDB_FR_CP0_ENTRYHI) + 4)	/* 85 */
#define GDB_FR_CP0_REG12	((GDB_FR_CP0_REG11) + 4)	/* 86 */
#define GDB_FR_CP0_REG13	((GDB_FR_CP0_REG12) + 4)	/* 87 */
#define GDB_FR_CP0_REG14	((GDB_FR_CP0_REG13) + 4)	/* 88 */
#define GDB_FR_CP0_PRID		((GDB_FR_CP0_REG14) + 4)	/* 89 */

#define GDB_FR_SIZE		((((GDB_FR_CP0_PRID) + 4) + (PTRSIZE-1)) & ~(PTRSIZE-1))

/* Registers not used by GDB */
#define GDB_FR_CP0_ERROREPC		((GDB_FR_CP0_PRID) + 4)		/* 90 */
#define GDB_FR_CP0_CONFIG		((GDB_FR_CP0_ERROREPC) + 4)	/* 91 */
#define GDB_FR_CP0_CONFIG1		((GDB_FR_CP0_CONFIG) + 4)	/* 92 */
#define GDB_FR_CP0_WATCHLO		((GDB_FR_CP0_CONFIG1) + 4)	/* 93 */
#define GDB_FR_CP0_WATCHHI		((GDB_FR_CP0_WATCHLO) + 4)	/* 94 */


#ifndef _ASSEMBLER_

/*
 * This is the same as above, but for the high-level
 * part of the GDB stub.
 */

typedef struct
{
	/*
	 * saved main processor registers
	 */
	UINT32	reg0,  reg1,  reg2,  reg3,  reg4,  reg5,  reg6,  reg7;
	UINT32	reg8,  reg9,  reg10, reg11, reg12, reg13, reg14, reg15;
	UINT32	reg16, reg17, reg18, reg19, reg20, reg21, reg22, reg23;
	UINT32	reg24, reg25, reg26, reg27, reg28, reg29, reg30, reg31;

	/*
	 * Saved special registers
	 */
	UINT32	cp0_status;
	UINT32	lo;
	UINT32	hi;
	UINT32	cp0_badvaddr;
	UINT32	cp0_cause;
	UINT32	cp0_epc;

	/*
	 * Saved floating point registers
	 */
	UINT32	fpr0,  fpr1,  fpr2,  fpr3,  fpr4,  fpr5,  fpr6,  fpr7;
	UINT32	fpr8,  fpr9,  fpr10, fpr11, fpr12, fpr13, fpr14, fpr15;
	UINT32	fpr16, fpr17, fpr18, fpr19, fpr20, fpr21, fpr22, fpr23;
	UINT32	fpr24, fpr25, fpr26, fpr27, fpr28, fpr29, fpr30, fpr31;

	UINT32	cp1_fsr;
	UINT32	cp1_fir;

	/*
	 * Frame pointer
	 */
	UINT32	frame_ptr;
	UINT32  dummy;		/* unused */
	
	/*
	 * saved cp0 registers
	 */
	UINT32	cp0_index;
	UINT32	cp0_random;
	UINT32	cp0_entrylo0;
	UINT32	cp0_entrylo1;
	UINT32	cp0_context;
	UINT32	cp0_pagemask;
	UINT32	cp0_wired;
	UINT32	cp0_reg7;
	UINT32	cp0_reg8;
	UINT32	cp0_reg9;
	UINT32	cp0_entryhi;
	UINT32	cp0_reg11;
	UINT32	cp0_reg12;
	UINT32	cp0_reg13;
	UINT32	cp0_reg14;
	UINT32	cp0_prid;

	/* CP0 registers not used by GDB */
	UINT32  cp0_errorepc;
	UINT32	cp0_config;
	UINT32	cp0_config1;
	UINT32  cp0_watchlo;
	UINT32  cp0_watchhi;
}
t_gdb_regs;


#endif /* _ASSEMBLER_ */

#endif /* #ifndef GDB_STUB_H */