/**************************************************************************** * * Realmode X86 Emulator Library * * Copyright (C) 1996-1999 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. * ****************************************************************************/ /* $XFree86: xc/extras/x86emu/src/x86emu/x86emu/debug.h,v 1.4 2000/11/21 23:10:27 tsi Exp $ */ #ifndef __X86EMU_DEBUG_H #define __X86EMU_DEBUG_H /*---------------------- Macros and type definitions ----------------------*/ /* printf is not available in coreboot... use printk */ #define printf(x...) printk(BIOS_DEBUG, x) /* 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_IP_CS_F) # 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_TRACEJMP() (M.x86.debug & DEBUG_TRACEJMP_F) # define DEBUG_TRACEJMPREGS() (M.x86.debug & DEBUG_TRACEJMP_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_TRACEJMP() 0 # define DEBUG_TRACEJMPREGS() 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()) \ printf("%04x:%04x: CALL %s%04x:%04x\n", u , v, s, w, x); # define RETURN_TRACE(u,v,w,x,s) \ if (DEBUG_TRACECALLREGS()) \ x86emu_dump_regs(); \ if (DEBUG_TRACECALL()) \ printf("%04x:%04x: RET %s %04x:%04x\n",u,v,s,w,x); # define JMP_TRACE(u,v,w,x,s) \ if (DEBUG_TRACEJMPREGS()) \ x86emu_dump_regs(); \ if (DEBUG_TRACEJMP()) \ printf("%04x:%04x: JMP %s%04x:%04x\n", u , v, s, w, x); #else # define CALL_TRACE(u,v,w,x,s) # define RETURN_TRACE(u,v,w,x,s) # define JMP_TRACE(u,v,w,x,s) #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 void x86emu_inc_decoded_inst_len (int x); void x86emu_decode_printf (const char *x); void x86emu_decode_printf2 (const char *x, int y); void x86emu_just_disassemble (void); void x86emu_single_step (void); void x86emu_end_instr (void); void x86emu_dump_regs (void); void x86emu_dump_xregs (void); void x86emu_print_int_vect (u16 iv); void x86emu_instrument_instruction (void); void x86emu_check_ip_access (void); void x86emu_check_sp_access (void); void x86emu_check_mem_access (u32 p); void x86emu_check_data_access (uint s, uint o); void disassemble_forward (u16 seg, u16 off, int n); #ifdef __cplusplus } /* End of "C" linkage for C++ */ #endif #endif /* __X86EMU_DEBUG_H */