mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-19 11:18:28 +00:00
209 lines
6.8 KiB
C
209 lines
6.8 KiB
C
/****************************************************************************
|
|
*
|
|
* Realmode X86 Emulator Library
|
|
*
|
|
* Copyright (C) 1991-2004 SciTech Software, Inc.
|
|
* Copyright (C) David Mosberger-Tang
|
|
* Copyright (C) 1999 Egbert Eich
|
|
*
|
|
* ========================================================================
|
|
*
|
|
* Permission to use, copy, modify, distribute, and sell this software and
|
|
* its documentation for any purpose is hereby granted without fee,
|
|
* provided that the above copyright notice appear in all copies and that
|
|
* both that copyright notice and this permission notice appear in
|
|
* supporting documentation, and that the name of the authors not be used
|
|
* in advertising or publicity pertaining to distribution of the software
|
|
* without specific, written prior permission. The authors makes no
|
|
* representations about the suitability of this software for any purpose.
|
|
* It is provided "as is" without express or implied warranty.
|
|
*
|
|
* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
|
|
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
|
|
* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
|
|
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
|
|
* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
|
|
* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
|
|
* PERFORMANCE OF THIS SOFTWARE.
|
|
*
|
|
* ========================================================================
|
|
*
|
|
* Language: ANSI C
|
|
* Environment: Any
|
|
* Developer: Kendall Bennett
|
|
*
|
|
* Description: Header file for debug definitions.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifndef __X86EMU_DEBUG_H
|
|
#define __X86EMU_DEBUG_H
|
|
|
|
/*---------------------- Macros and type definitions ----------------------*/
|
|
|
|
/* checks to be enabled for "runtime" */
|
|
|
|
#define CHECK_IP_FETCH_F 0x1
|
|
#define CHECK_SP_ACCESS_F 0x2
|
|
#define CHECK_MEM_ACCESS_F 0x4 /*using regular linear pointer */
|
|
#define CHECK_DATA_ACCESS_F 0x8 /*using segment:offset */
|
|
|
|
#ifdef DEBUG
|
|
# define CHECK_IP_FETCH() (M.x86.check & CHECK_IP_FETCH_F)
|
|
# define CHECK_SP_ACCESS() (M.x86.check & CHECK_SP_ACCESS_F)
|
|
# define CHECK_MEM_ACCESS() (M.x86.check & CHECK_MEM_ACCESS_F)
|
|
# define CHECK_DATA_ACCESS() (M.x86.check & CHECK_DATA_ACCESS_F)
|
|
#else
|
|
# define CHECK_IP_FETCH()
|
|
# define CHECK_SP_ACCESS()
|
|
# define CHECK_MEM_ACCESS()
|
|
# define CHECK_DATA_ACCESS()
|
|
#endif
|
|
|
|
#ifdef DEBUG
|
|
# define DEBUG_INSTRUMENT() (M.x86.debug & DEBUG_INSTRUMENT_F)
|
|
# define DEBUG_DECODE() (M.x86.debug & DEBUG_DECODE_F)
|
|
# define DEBUG_TRACE() (M.x86.debug & DEBUG_TRACE_F)
|
|
# define DEBUG_STEP() (M.x86.debug & DEBUG_STEP_F)
|
|
# define DEBUG_DISASSEMBLE() (M.x86.debug & DEBUG_DISASSEMBLE_F)
|
|
# define DEBUG_BREAK() (M.x86.debug & DEBUG_BREAK_F)
|
|
# define DEBUG_SVC() (M.x86.debug & DEBUG_SVC_F)
|
|
# define DEBUG_SAVE_IP_CS() (M.x86.debug & DEBUG_SAVE_CS_IP)
|
|
|
|
# define DEBUG_FS() (M.x86.debug & DEBUG_FS_F)
|
|
# define DEBUG_PROC() (M.x86.debug & DEBUG_PROC_F)
|
|
# define DEBUG_SYSINT() (M.x86.debug & DEBUG_SYSINT_F)
|
|
# define DEBUG_TRACECALL() (M.x86.debug & DEBUG_TRACECALL_F)
|
|
# define DEBUG_TRACECALLREGS() (M.x86.debug & DEBUG_TRACECALL_REGS_F)
|
|
# define DEBUG_SYS() (M.x86.debug & DEBUG_SYS_F)
|
|
# define DEBUG_MEM_TRACE() (M.x86.debug & DEBUG_MEM_TRACE_F)
|
|
# define DEBUG_IO_TRACE() (M.x86.debug & DEBUG_IO_TRACE_F)
|
|
# define DEBUG_DECODE_NOPRINT() (M.x86.debug & DEBUG_DECODE_NOPRINT_F)
|
|
#else
|
|
# define DEBUG_INSTRUMENT() 0
|
|
# define DEBUG_DECODE() 0
|
|
# define DEBUG_TRACE() 0
|
|
# define DEBUG_STEP() 0
|
|
# define DEBUG_DISASSEMBLE() 0
|
|
# define DEBUG_BREAK() 0
|
|
# define DEBUG_SVC() 0
|
|
# define DEBUG_SAVE_IP_CS() 0
|
|
# define DEBUG_FS() 0
|
|
# define DEBUG_PROC() 0
|
|
# define DEBUG_SYSINT() 0
|
|
# define DEBUG_TRACECALL() 0
|
|
# define DEBUG_TRACECALLREGS() 0
|
|
# define DEBUG_SYS() 0
|
|
# define DEBUG_MEM_TRACE() 0
|
|
# define DEBUG_IO_TRACE() 0
|
|
# define DEBUG_DECODE_NOPRINT() 0
|
|
#endif
|
|
|
|
#ifdef DEBUG
|
|
|
|
# define DECODE_PRINTF(x) if (DEBUG_DECODE()) \
|
|
x86emu_decode_printf(x)
|
|
# define DECODE_PRINTF2(x,y) if (DEBUG_DECODE()) \
|
|
x86emu_decode_printf2(x,y)
|
|
|
|
/*
|
|
* The following allow us to look at the bytes of an instruction. The
|
|
* first INCR_INSTRN_LEN, is called everytime bytes are consumed in
|
|
* the decoding process. The SAVE_IP_CS is called initially when the
|
|
* major opcode of the instruction is accessed.
|
|
*/
|
|
#define INC_DECODED_INST_LEN(x) \
|
|
if (DEBUG_DECODE()) \
|
|
x86emu_inc_decoded_inst_len(x)
|
|
|
|
#define SAVE_IP_CS(x,y) \
|
|
if (DEBUG_DECODE() | DEBUG_TRACECALL() | DEBUG_BREAK() \
|
|
| DEBUG_IO_TRACE() | DEBUG_SAVE_IP_CS()) { \
|
|
M.x86.saved_cs = x; \
|
|
M.x86.saved_ip = y; \
|
|
}
|
|
#else
|
|
# define INC_DECODED_INST_LEN(x)
|
|
# define DECODE_PRINTF(x)
|
|
# define DECODE_PRINTF2(x,y)
|
|
# define SAVE_IP_CS(x,y)
|
|
#endif
|
|
|
|
#ifdef DEBUG
|
|
#define TRACE_REGS() \
|
|
if (DEBUG_DISASSEMBLE()) { \
|
|
x86emu_just_disassemble(); \
|
|
goto EndOfTheInstructionProcedure; \
|
|
} \
|
|
if (DEBUG_TRACE() || DEBUG_DECODE()) X86EMU_trace_regs()
|
|
#else
|
|
# define TRACE_REGS()
|
|
#endif
|
|
|
|
#ifdef DEBUG
|
|
# define SINGLE_STEP() if (DEBUG_STEP()) x86emu_single_step()
|
|
#else
|
|
# define SINGLE_STEP()
|
|
#endif
|
|
|
|
#define TRACE_AND_STEP() \
|
|
TRACE_REGS(); \
|
|
SINGLE_STEP()
|
|
|
|
#ifdef DEBUG
|
|
# define START_OF_INSTR()
|
|
# define END_OF_INSTR() EndOfTheInstructionProcedure: x86emu_end_instr();
|
|
# define END_OF_INSTR_NO_TRACE() x86emu_end_instr();
|
|
#else
|
|
# define START_OF_INSTR()
|
|
# define END_OF_INSTR()
|
|
# define END_OF_INSTR_NO_TRACE()
|
|
#endif
|
|
|
|
#ifdef DEBUG
|
|
# define CALL_TRACE(u,v,w,x,s) \
|
|
if (DEBUG_TRACECALLREGS()) \
|
|
x86emu_dump_regs(); \
|
|
if (DEBUG_TRACECALL()) \
|
|
printk("%04x:%04x: CALL %s%04x:%04x\n", u , v, s, w, x);
|
|
# define RETURN_TRACE(n,u,v) \
|
|
if (DEBUG_TRACECALLREGS()) \
|
|
x86emu_dump_regs(); \
|
|
if (DEBUG_TRACECALL()) \
|
|
printk("%04x:%04x: %s\n",u,v,n);
|
|
#else
|
|
# define CALL_TRACE(u,v,w,x,s)
|
|
# define RETURN_TRACE(n,u,v)
|
|
#endif
|
|
|
|
#ifdef DEBUG
|
|
#define DB(x) x
|
|
#else
|
|
#define DB(x)
|
|
#endif
|
|
|
|
/*-------------------------- Function Prototypes --------------------------*/
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" { /* Use "C" linkage when in C++ mode */
|
|
#endif
|
|
|
|
extern void x86emu_inc_decoded_inst_len(int x);
|
|
extern void x86emu_decode_printf(char *x);
|
|
extern void x86emu_decode_printf2(char *x, int y);
|
|
extern void x86emu_just_disassemble(void);
|
|
extern void x86emu_single_step(void);
|
|
extern void x86emu_end_instr(void);
|
|
extern void x86emu_dump_regs(void);
|
|
extern void x86emu_dump_xregs(void);
|
|
extern void x86emu_print_int_vect(u16 iv);
|
|
extern void x86emu_instrument_instruction(void);
|
|
extern void x86emu_check_ip_access(void);
|
|
extern void x86emu_check_sp_access(void);
|
|
extern void x86emu_check_mem_access(u32 p);
|
|
extern void x86emu_check_data_access(uint s, uint o);
|
|
|
|
#ifdef __cplusplus
|
|
} /* End of "C" linkage for C++ */
|
|
#endif
|
|
#endif /* __X86EMU_DEBUG_H */
|