diff options
Diffstat (limited to 'drivers/bios_emulator/include/x86emu/debug.h')
| -rw-r--r-- | drivers/bios_emulator/include/x86emu/debug.h | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/drivers/bios_emulator/include/x86emu/debug.h b/drivers/bios_emulator/include/x86emu/debug.h new file mode 100644 index 0000000000..268c9d391e --- /dev/null +++ b/drivers/bios_emulator/include/x86emu/debug.h @@ -0,0 +1,209 @@ +/**************************************************************************** +* +* 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 */ |