wine/include/debugger.h

/*
 * Debugger definitions
 *
 * Copyright 1995 Alexandre Julliard
 */

#ifndef __WINE_DEBUGGER_H
#define __WINE_DEBUGGER_H

#include "winnt.h"
#include "selectors.h"
#include "sig_context.h"
#include "pe_image.h"
#include "miscemu.h"

#define STEP_FLAG 0x100 /* single step flag */

#define SYM_FUNC	 0x0
#define SYM_DATA	 0x1
#define SYM_WIN32	 0x2
#define SYM_WINE	 0x4
#define SYM_INVALID	 0x8
#define SYM_TRAMPOLINE	 0x10
#define SYM_STEP_THROUGH 0x20

enum	debug_type {BASIC, CONST, POINTER, ARRAY, STRUCT, ENUM, TYPEDEF, FUNC, BITFIELD};


/*
 * Return values for DEBUG_CheckLinenoStatus.  Used to determine
 * what to do when the 'step' command is given.
 */
#define FUNC_HAS_NO_LINES	(0)
#define NOT_ON_LINENUMBER	(1)
#define AT_LINENUMBER		(2)
#define FUNC_IS_TRAMPOLINE	(3)

/*
 * For constants generated by the parser, we use this datatype
 */
extern struct datatype * DEBUG_TypeInt;
extern struct datatype * DEBUG_TypeIntConst;
extern struct datatype * DEBUG_TypeUSInt;
extern struct datatype * DEBUG_TypeString;

typedef struct
{
    struct datatype * type;
    DWORD seg;  /* 0xffffffff means current default segment (cs or ds) */
    DWORD off;
} DBG_ADDR;

struct list_id
{
    char * sourcefile;
    int    line;
};

struct  wine_lines {
  unsigned long		line_number;
  DBG_ADDR		pc_offset;
};

struct symbol_info
{
  struct name_hash * sym;
  struct list_id     list;
};

typedef struct wine_lines WineLineNo;

/*
 * This structure holds information about stack variables, function
 * parameters, and register variables, which are all local to this
 * function.
 */
struct  wine_locals {
  unsigned int		regno:8;	/* For register symbols */
  signed int		offset:24;	/* offset from esp/ebp to symbol */
  unsigned int		pc_start;	/* For RBRAC/LBRAC */
  unsigned int		pc_end;		/* For RBRAC/LBRAC */
  char		      * name;		/* Name of symbol */
  struct datatype     * type;		/* Datatype of symbol */
};

typedef struct wine_locals WineLocals;


#define DBG_V86_MODULE(seg) ((seg)>>16)
#define IS_SELECTOR_V86(seg) DBG_V86_MODULE(seg)

#define DBG_FIX_ADDR_SEG(addr,default) { \
      if ((addr)->seg == 0xffffffff) (addr)->seg = (default); \
      if (!IS_SELECTOR_V86((addr)->seg)) \
      if (IS_SELECTOR_SYSTEM((addr)->seg)) (addr)->seg = 0; }

#define DBG_ADDR_TO_LIN(addr) \
    (IS_SELECTOR_V86((addr)->seg) \
      ? (char*)(DOSMEM_MemoryBase(DBG_V86_MODULE((addr)->seg)) + \
         ((((addr)->seg)&0xFFFF)<<4)+(addr)->off) : \
    (IS_SELECTOR_SYSTEM((addr)->seg) ? (char *)(addr)->off \
      : (char *)PTR_SEG_OFF_TO_LIN((addr)->seg,(addr)->off)))

#define DBG_CHECK_READ_PTR(addr,len) \
    (!DEBUG_IsBadReadPtr((addr),(len)) || \
     (fprintf(stderr,"*** Invalid address "), \
      DEBUG_PrintAddress((addr),dbg_mode, FALSE), \
      fprintf(stderr,"\n"),0))

#define DBG_CHECK_WRITE_PTR(addr,len) \
    (!DEBUG_IsBadWritePtr((addr),(len)) || \
     (fprintf(stderr,"*** Invalid address "), \
      DEBUG_PrintAddress(addr,dbg_mode, FALSE), \
      fprintf(stderr,"\n"),0))

#ifdef REG_SP  /* Some Sun includes define this */
#undef REG_SP
#endif

enum debug_regs
{
    REG_EAX, REG_EBX, REG_ECX, REG_EDX, REG_ESI,
    REG_EDI, REG_EBP, REG_EFL, REG_EIP, REG_ESP,
    REG_AX, REG_BX, REG_CX, REG_DX, REG_SI,
    REG_DI, REG_BP, REG_FL, REG_IP, REG_SP,
    REG_CS, REG_DS, REG_ES, REG_SS, REG_FS, REG_GS
};


enum exec_mode
{
    EXEC_CONT,       /* Continuous execution */
    EXEC_STEP_OVER,  /* Stepping over a call to next source line */
    EXEC_STEP_INSTR,  /* Step to next source line, stepping in if needed */
    EXEC_STEPI_OVER,  /* Stepping over a call */
    EXEC_STEPI_INSTR,  /* Single-stepping an instruction */
    EXEC_FINISH,		/* Step until we exit current frame */
    EXEC_STEP_OVER_TRAMPOLINE  /* Step over trampoline.  Requires that
				* we dig the real return value off the stack
				* and set breakpoint there - not at the
				* instr just after the call.
				*/
};

extern CONTEXT DEBUG_context;  /* debugger/registers.c */
extern unsigned int dbg_mode;

  /* debugger/break.c */
extern void DEBUG_SetBreakpoints( BOOL32 set );
extern int DEBUG_FindBreakpoint( const DBG_ADDR *addr );
extern void DEBUG_AddBreakpoint( const DBG_ADDR *addr );
extern void DEBUG_DelBreakpoint( int num );
extern void DEBUG_EnableBreakpoint( int num, BOOL32 enable );
extern void DEBUG_InfoBreakpoints(void);
extern void DEBUG_AddModuleBreakpoints(void);
extern BOOL32 DEBUG_HandleTrap(void);
extern BOOL32 DEBUG_ShouldContinue( enum exec_mode mode, int * count );
extern enum exec_mode DEBUG_RestartExecution( enum exec_mode mode, int count );
extern BOOL32 DEBUG_IsFctReturn(void);

  /* debugger/db_disasm.c */
extern void DEBUG_Disasm( DBG_ADDR *addr, int display );

  /* debugger/expr.c */
extern void DEBUG_FreeExprMem(void);
struct expr * DEBUG_RegisterExpr(enum debug_regs);
struct expr * DEBUG_SymbolExpr(const char * name);
struct expr * DEBUG_ConstExpr(int val);
struct expr * DEBUG_StringExpr(const char * str);
struct expr * DEBUG_SegAddr(struct expr *, struct expr *);
struct expr * DEBUG_USConstExpr(unsigned int val);
struct expr * DEBUG_BinopExpr(int oper, struct expr *, struct expr *);
struct expr * DEBUG_UnopExpr(int oper, struct expr *);
struct expr * DEBUG_StructPExpr(struct expr *, const char * element);
struct expr * DEBUG_StructExpr(struct expr *, const char * element);
struct expr * DEBUG_ArrayExpr(struct expr *, struct expr * index);
struct expr * DEBUG_CallExpr(const char *, int nargs, ...);
struct expr * DEBUG_TypeCastExpr(struct datatype *, struct expr *);
extern   int  DEBUG_ExprValue(DBG_ADDR *, unsigned int *);
DBG_ADDR DEBUG_EvalExpr(struct expr *);
extern int DEBUG_DelDisplay(int displaynum);
extern struct expr * DEBUG_CloneExpr(struct expr * exp);
extern int DEBUG_FreeExpr(struct expr * exp);
extern int DEBUG_DisplayExpr(struct expr * exp);

  /* more debugger/break.c */
extern int DEBUG_AddBPCondition(int bpnum, struct expr * exp);

  /* debugger/display.c */
extern int DEBUG_DoDisplay(void);
extern int DEBUG_AddDisplay(struct expr * exp, int count, char format);
extern int DEBUG_DoDisplay(void);
extern int DEBUG_DelDisplay(int displaynum);
extern int DEBUG_InfoDisplay(void);

  /* debugger/hash.c */
extern struct name_hash * DEBUG_AddSymbol( const char *name, 
					   const DBG_ADDR *addr,
					   const char * sourcefile,
					   int flags);
extern struct name_hash * DEBUG_AddInvSymbol( const char *name, 
					   const DBG_ADDR *addr,
					   const char * sourcefile);
extern BOOL32 DEBUG_GetSymbolValue( const char * name, const int lineno,
				    DBG_ADDR *addr, int );
extern BOOL32 DEBUG_SetSymbolValue( const char * name, const DBG_ADDR *addr );
extern const char * DEBUG_FindNearestSymbol( const DBG_ADDR *addr, int flag,
					     struct name_hash ** rtn,
					     unsigned int ebp,
					     struct list_id * source);
extern void DEBUG_ReadSymbolTable( const char * filename );
extern void DEBUG_LoadEntryPoints(void);
extern void DEBUG_AddLineNumber( struct name_hash * func, int line_num, 
		     unsigned long offset );
extern struct wine_locals *
            DEBUG_AddLocal( struct name_hash * func, int regno, 
			    int offset,
			    int pc_start,
			    int pc_end,
			    char * name);
extern int DEBUG_CheckLinenoStatus(const DBG_ADDR *addr);
extern void DEBUG_GetFuncInfo(struct list_id * ret, const char * file, 
			      const char * func);
extern int DEBUG_SetSymbolSize(struct name_hash * sym, unsigned int len);
extern int DEBUG_SetSymbolBPOff(struct name_hash * sym, unsigned int len);
extern int DEBUG_GetSymbolAddr(struct name_hash * sym, DBG_ADDR * addr);
extern int DEBUG_cmp_sym(const void * p1, const void * p2);
extern BOOL32 DEBUG_GetLineNumberAddr( struct name_hash *, const int lineno, 
				DBG_ADDR *addr, int bp_flag );

extern int DEBUG_SetLocalSymbolType(struct wine_locals * sym, 
				    struct datatype * type);
BOOL32 DEBUG_Normalize(struct name_hash * nh );

  /* debugger/info.c */
extern void DEBUG_PrintBasic( const DBG_ADDR *addr, int count, char format );
extern struct symbol_info DEBUG_PrintAddress( const DBG_ADDR *addr, 
					      int addrlen, int flag );
extern void DEBUG_Help(void);
extern void DEBUG_HelpInfo(void);
extern struct symbol_info DEBUG_PrintAddressAndArgs( const DBG_ADDR *addr, 
						     int addrlen, 
						     unsigned int ebp, 
						     int flag );

  /* debugger/memory.c */
extern BOOL32 DEBUG_IsBadReadPtr( const DBG_ADDR *address, int size );
extern BOOL32 DEBUG_IsBadWritePtr( const DBG_ADDR *address, int size );
extern int DEBUG_ReadMemory( const DBG_ADDR *address );
extern void DEBUG_WriteMemory( const DBG_ADDR *address, int value );
extern void DEBUG_ExamineMemory( const DBG_ADDR *addr, int count, char format);

  /* debugger/registers.c */
extern void DEBUG_SetRegister( enum debug_regs reg, int val );
extern int DEBUG_GetRegister( enum debug_regs reg );
extern void DEBUG_InfoRegisters(void);
extern BOOL32 DEBUG_ValidateRegisters(void);
extern void DEBUG_SetSigContext( const SIGCONTEXT *sigcontext );
extern void DEBUG_GetSigContext( SIGCONTEXT *sigcontext );
extern int DEBUG_PrintRegister(enum debug_regs reg);

  /* debugger/stack.c */
extern void DEBUG_InfoStack(void);
extern void DEBUG_BackTrace(void);
extern void DEBUG_SilentBackTrace(void);
extern int  DEBUG_InfoLocals(void);
extern int  DEBUG_SetFrame(int newframe);
extern int  DEBUG_GetCurrentFrame(struct name_hash ** name, 
				  unsigned int * eip,
				  unsigned int * ebp);

  /* debugger/stabs.c */
extern int DEBUG_ReadExecutableDbgInfo(void);

  /* debugger/msc.c */
extern int DEBUG_RegisterDebugInfo( HMODULE32, const char *,
                                    unsigned long, unsigned long);
extern int DEBUG_ProcessDeferredDebug(void);
extern int DEBUG_RegisterELFDebugInfo(int load_addr, u_long size, char * name);
extern void DEBUG_InfoShare(void);
extern void DEBUG_InitCVDataTypes(void);

  /* debugger/types.c */
extern int DEBUG_nchar;
extern void DEBUG_InitTypes(void);
extern struct datatype * DEBUG_NewDataType(enum debug_type xtype, 
					   const char * typename);
extern unsigned int 
DEBUG_TypeDerefPointer(DBG_ADDR * addr, struct datatype ** newtype);
extern int DEBUG_AddStructElement(struct datatype * dt, 
				  char * name, struct datatype * type, 
				  int offset, int size);
extern int DEBUG_SetStructSize(struct datatype * dt, int size);
extern int DEBUG_SetPointerType(struct datatype * dt, struct datatype * dt2);
extern int DEBUG_SetArrayParams(struct datatype * dt, int min, int max,
				struct datatype * dt2);
extern void DEBUG_Print( const DBG_ADDR *addr, int count, char format, int level );
extern unsigned int DEBUG_FindStructElement(DBG_ADDR * addr, 
					    const char * ele_name, int * tmpbuf);
extern struct datatype * DEBUG_GetPointerType(struct datatype * dt);
extern int DEBUG_GetObjectSize(struct datatype * dt);
extern unsigned int DEBUG_ArrayIndex(DBG_ADDR * addr, DBG_ADDR * result, int index);
extern struct datatype * DEBUG_FindOrMakePointerType(struct datatype * reftype);
extern long long int DEBUG_GetExprValue(DBG_ADDR * addr, char ** format);
extern int DEBUG_SetBitfieldParams(struct datatype * dt, int offset, 
				   int nbits, struct datatype * dt2);
extern int DEBUG_CopyFieldlist(struct datatype * dt, struct datatype * dt2);
extern enum debug_type DEBUG_GetType(struct datatype * dt);
extern struct datatype * DEBUG_TypeCast(enum debug_type, const char *);
extern int DEBUG_PrintTypeCast(struct datatype *);

  /* debugger/source.c */
extern void DEBUG_ShowDir(void);
extern void DEBUG_AddPath(const char * path);
extern void DEBUG_List(struct list_id * line1, struct list_id * line2,  
		       int delta);
extern void DEBUG_NukePath(void);
extern void DEBUG_Disassemble( const DBG_ADDR *, const DBG_ADDR*, int offset );

  /* debugger/dbg.y */
extern void ctx_debug( int signal, CONTEXT *regs );
extern void wine_debug( int signal, SIGCONTEXT *regs );

#endif  /* __WINE_DEBUGGER_H */