/** $Id: DBGCInternal.h 5668 2007-11-11 04:36:28Z vboxsync $ */ /** @file * DBGC - Debugger Console, Internal Header File. */ /* * Copyright (C) 2006-2007 innotek GmbH * * This file is part of VirtualBox Open Source Edition (OSE), as * available from http://www.virtualbox.org. This file is free software; * you can redistribute it and/or modify it under the terms of the GNU * General Public License as published by the Free Software Foundation, * in version 2 as it comes in the "COPYING" file of the VirtualBox OSE * distribution. VirtualBox OSE is distributed in the hope that it will * be useful, but WITHOUT ANY WARRANTY of any kind. */ #ifndef ___DBGCInternal_h #define ___DBGCInternal_h /******************************************************************************* * Header Files * *******************************************************************************/ #include #include #include #include #include #include #include #include #include #include /******************************************************************************* * Defined Constants And Macros * *******************************************************************************/ /* to err.h! */ #define VERR_DBGC_QUIT (-11999) #define VERR_PARSE_FIRST (-11000) #define VERR_PARSE_TOO_FEW_ARGUMENTS (VERR_PARSE_FIRST - 0) #define VERR_PARSE_TOO_MANY_ARGUMENTS (VERR_PARSE_FIRST - 1) #define VERR_PARSE_ARGUMENT_OVERFLOW (VERR_PARSE_FIRST - 2) #define VERR_PARSE_ARGUMENT_TYPE_MISMATCH (VERR_PARSE_FIRST - 3) #define VERR_PARSE_NO_RANGE_ALLOWED (VERR_PARSE_FIRST - 4) #define VERR_PARSE_UNBALANCED_QUOTE (VERR_PARSE_FIRST - 5) #define VERR_PARSE_UNBALANCED_PARENTHESIS (VERR_PARSE_FIRST - 6) #define VERR_PARSE_EMPTY_ARGUMENT (VERR_PARSE_FIRST - 7) #define VERR_PARSE_UNEXPECTED_OPERATOR (VERR_PARSE_FIRST - 8) #define VERR_PARSE_INVALID_NUMBER (VERR_PARSE_FIRST - 9) #define VERR_PARSE_NUMBER_TOO_BIG (VERR_PARSE_FIRST - 10) #define VERR_PARSE_INVALID_OPERATION (VERR_PARSE_FIRST - 11) #define VERR_PARSE_FUNCTION_NOT_FOUND (VERR_PARSE_FIRST - 12) #define VERR_PARSE_NOT_A_FUNCTION (VERR_PARSE_FIRST - 13) #define VERR_PARSE_NO_MEMORY (VERR_PARSE_FIRST - 14) #define VERR_PARSE_INCORRECT_ARG_TYPE (VERR_PARSE_FIRST - 15) #define VERR_PARSE_VARIABLE_NOT_FOUND (VERR_PARSE_FIRST - 16) #define VERR_PARSE_CONVERSION_FAILED (VERR_PARSE_FIRST - 17) #define VERR_PARSE_NOT_IMPLEMENTED (VERR_PARSE_FIRST - 18) #define VERR_PARSE_BAD_RESULT_TYPE (VERR_PARSE_FIRST - 19) #define VERR_PARSE_WRITEONLY_SYMBOL (VERR_PARSE_FIRST - 20) #define VERR_PARSE_NO_ARGUMENT_MATCH (VERR_PARSE_FIRST - 21) #define VERR_PARSE_LAST (VERR_PARSE_FIRST - 30) #define VWRN_DBGC_CMD_PENDING 12000 #define VWRN_DBGC_ALREADY_REGISTERED 12001 #define VERR_DBGC_COMMANDS_NOT_REGISTERED (-12002) #define VERR_DBGC_BP_NOT_FOUND (-12003) #define VERR_DBGC_BP_EXISTS (-12004) #define VINF_DBGC_BP_NO_COMMAND 12005 /******************************************************************************* * Structures and Typedefs * *******************************************************************************/ /** * Debugger console per breakpoint data. */ typedef struct DBGCBP { /** Pointer to the next breakpoint in the list. */ struct DBGCBP *pNext; /** The breakpoint identifier. */ RTUINT iBp; /** The size of the command. */ size_t cchCmd; /** The command to execute when the breakpoint is hit. */ char szCmd[1]; } DBGCBP; /** Pointer to a breakpoint. */ typedef DBGCBP *PDBGCBP; /** * Named variable. * * Always allocated from heap in one signle block. */ typedef struct DBGCNAMEDVAR { /** The variable. */ DBGCVAR Var; /** It's name. */ char szName[1]; } DBGCNAMEDVAR; /** Pointer to named variable. */ typedef DBGCNAMEDVAR *PDBGCNAMEDVAR; /** * Debugger console status */ typedef enum DBGCSTATUS { /** Normal status, .*/ DBGC_HALTED } DBGCSTATUS; /** * Debugger console instance data. */ typedef struct DBGC { /** Command helpers. */ DBGCCMDHLP CmdHlp; /** Pointer to backend callback structure. */ PDBGCBACK pBack; /** Pointer to the current VM. */ PVM pVM; /** The current debugger emulation. */ const char *pszEmulation; /** Pointer to the command and functions for the current debugger emulation. */ PCDBGCCMD paEmulationCmds; /** The number of commands paEmulationCmds points to. */ unsigned cEmulationCmds; /** Log indicator. (If set we're writing the log to the console.) */ bool fLog; /** Indicates whether we're in guest (true) or hypervisor (false) register context. */ bool fRegCtxGuest; /** Indicates whether the register are terse or sparse. */ bool fRegTerse; /** Current dissassembler position. */ DBGCVAR DisasmPos; /** Current source position. (flat GC) */ DBGCVAR SourcePos; /** Current memory dump position. */ DBGCVAR DumpPos; /** Size of the previous dump element. */ unsigned cbDumpElement; /** Number of variables in papVars. */ unsigned cVars; /** Array of global variables. * Global variables can be referenced using the $ operator and set * and unset using command with those names. */ PDBGCNAMEDVAR *papVars; /** The list of breakpoints. (singly linked) */ PDBGCBP pFirstBp; /** @name Parsing and Execution * @{ */ /** Input buffer. */ char achInput[2048]; /** To ease debugging. */ unsigned uInputZero; /** Write index in the input buffer. */ unsigned iWrite; /** Read index in the input buffer. */ unsigned iRead; /** The number of lines in the buffer. */ unsigned cInputLines; /** Indicates that we have a buffer overflow condition. * This means that input is ignored up to the next newline. */ bool fInputOverflow; /** Indicates whether or we're ready for input. */ bool fReady; /** Scratch buffer position. */ char *pszScratch; /** Scratch buffer. */ char achScratch[16384]; /** Argument array position. */ unsigned iArg; /** Array of argument variables. */ DBGCVAR aArgs[100]; /** rc from last dbgcHlpPrintfV(). */ int rcOutput; /** @} */ } DBGC; /** Pointer to debugger console instance data. */ typedef DBGC *PDBGC; /** Converts a Command Helper pointer to a pointer to DBGC instance data. */ #define DBGC_CMDHLP2DBGC(pCmdHlp) ( (PDBGC)((uintptr_t)(pCmdHlp) - RT_OFFSETOF(DBGC, CmdHlp)) ) /** * Chunk of external commands. */ typedef struct DBGCEXTCMDS { /** Number of commands descriptors. */ unsigned cCmds; /** Pointer to array of command descriptors. */ PCDBGCCMD paCmds; /** Pointer to the next chunk. */ struct DBGCEXTCMDS *pNext; } DBGCEXTCMDS; /** Pointer to chunk of external commands. */ typedef DBGCEXTCMDS *PDBGCEXTCMDS; /** * Unary operator handler function. * * @returns 0 on success. * @returns VBox evaluation / parsing error code on failure. * The caller does the bitching. * @param pDbgc Debugger console instance data. * @param pArg The argument. * @param pResult Where to store the result. */ typedef DECLCALLBACK(int) FNDBGCOPUNARY(PDBGC pDbgc, PCDBGCVAR pArg, PDBGCVAR pResult); /** Pointer to a unary operator handler function. */ typedef FNDBGCOPUNARY *PFNDBGCOPUNARY; /** * Binary operator handler function. * * @returns 0 on success. * @returns VBox evaluation / parsing error code on failure. * The caller does the bitching. * @param pDbgc Debugger console instance data. * @param pArg1 The first argument. * @param pArg2 The 2nd argument. * @param pResult Where to store the result. */ typedef DECLCALLBACK(int) FNDBGCOPBINARY(PDBGC pDbgc, PCDBGCVAR pArg1, PCDBGCVAR pArg2, PDBGCVAR pResult); /** Pointer to a binary operator handler function. */ typedef FNDBGCOPBINARY *PFNDBGCOPBINARY; /** * Operator descriptor. */ typedef struct DBGCOP { /** Operator mnemonic. */ char szName[4]; /** Length of name. */ const unsigned cchName; /** Whether or not this is a binary operator. * Unary operators are evaluated right-to-left while binary are left-to-right. */ bool fBinary; /** Precedence level. */ unsigned iPrecedence; /** Unary operator handler. */ PFNDBGCOPUNARY pfnHandlerUnary; /** Binary operator handler. */ PFNDBGCOPBINARY pfnHandlerBinary; /** Operator description. */ const char *pszDescription; } DBGCOP; /** Pointer to an operator descriptor. */ typedef DBGCOP *PDBGCOP; /** Pointer to a const operator descriptor. */ typedef const DBGCOP *PCDBGCOP; /** Pointer to symbol descriptor. */ typedef struct DBGCSYM *PDBGCSYM; /** Pointer to const symbol descriptor. */ typedef const struct DBGCSYM *PCDBGCSYM; /** * Get builtin symbol. * * @returns 0 on success. * @returns VBox evaluation / parsing error code on failure. * The caller does the bitching. * @param pSymDesc Pointer to the symbol descriptor. * @param pCmdHlp Pointer to the command callback structure. * @param enmType The result type. * @param pResult Where to store the result. */ typedef DECLCALLBACK(int) FNDBGCSYMGET(PCDBGCSYM pSymDesc, PDBGCCMDHLP pCmdHlp, DBGCVARTYPE enmType, PDBGCVAR pResult); /** Pointer to get function for a builtin symbol. */ typedef FNDBGCSYMGET *PFNDBGCSYMGET; /** * Set builtin symbol. * * @returns 0 on success. * @returns VBox evaluation / parsing error code on failure. * The caller does the bitching. * @param pSymDesc Pointer to the symbol descriptor. * @param pCmdHlp Pointer to the command callback structure. * @param pValue The value to assign the symbol. */ typedef DECLCALLBACK(int) FNDBGCSYMSET(PCDBGCSYM pSymDesc, PDBGCCMDHLP pCmdHlp, PCDBGCVAR pValue); /** Pointer to set function for a builtin symbol. */ typedef FNDBGCSYMSET *PFNDBGCSYMSET; /** * Symbol description (for builtin symbols). */ typedef struct DBGCSYM { /** Symbol name. */ const char *pszName; /** Get function. */ PFNDBGCSYMGET pfnGet; /** Set function. (NULL if readonly) */ PFNDBGCSYMSET pfnSet; /** User data. */ unsigned uUser; } DBGCSYM; /******************************************************************************* * Internal Functions * *******************************************************************************/ #if 0 static void dbgcVarSetGCFlat(PDBGCVAR pVar, RTGCPTR GCFlat); static void dbgcVarSetGCFlatByteRange(PDBGCVAR pVar, RTGCPTR GCFlat, uint64_t cb); static void dbgcVarSetVar(PDBGCVAR pVar, PCDBGCVAR pVar2); static void dbgcVarSetNoRange(PDBGCVAR pVar); static void dbgcVarSetByteRange(PDBGCVAR pVar, uint64_t cb); static int dbgcVarToDbgfAddr(PDBGC pDbgc, PCDBGCVAR pVar, PDBGFADDRESS pAddress); static int dbgcBpAdd(PDBGC pDbgc, RTUINT iBp, const char *pszCmd); static int dbgcBpUpdate(PDBGC pDbgc, RTUINT iBp, const char *pszCmd); static int dbgcBpDelete(PDBGC pDbgc, RTUINT iBp); static PDBGCBP dbgcBpGet(PDBGC pDbgc, RTUINT iBp); static int dbgcBpExec(PDBGC pDbgc, RTUINT iBp); static PCDBGCSYM dbgcLookupRegisterSymbol(PDBGC pDbgc, const char *pszSymbol); static int dbgcSymbolGet(PDBGC pDbgc, const char *pszSymbol, DBGCVARTYPE enmType, PDBGCVAR pResult); static int dbgcEvalSub(PDBGC pDbgc, char *pszExpr, size_t cchExpr, PDBGCVAR pResult); static int dbgcProcessCommand(PDBGC pDbgc, char *pszCmd, size_t cchCmd); #endif /******************************************************************************* * Global Variables * *******************************************************************************/ /** Command descriptors for the basic commands. */ extern const DBGCCMD g_aCmds[]; /** Command descriptors for the CodeView / WinDbg emulation. * The emulation isn't attempting to be identical, only somewhat similar. */ extern const DBGCCMD g_aCmdsCodeView[]; #endif