Source code of Windows XP (NT5)
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/*
* C A L D B G . H
*
* Debugging support header
* Support functions are implemented in CALDBG.C.
*
* Copyright 1986-1997 Microsoft Corporation. All Rights Reserved.
*/
#ifndef _CALDBG_H_
#define _CALDBG_H_
/*
* Debugging Macros -------------------------------------------------------
*
* IFDBG(x) Results in the expression x if DEBUG is defined, or
* to nothing if DEBUG is not defined
*
* IFNDBG(x) Results in the expression x if DEBUG is not defined,
* or to nothing if DEBUG is defined
*
* Unreferenced(a) Causes a to be referenced so that the compiler
* doesn't issue warnings about unused local variables
* which exist but are reserved for future use (eg
* ulFlags in many cases)
*/
#if defined(DEBUG)
#define IFDBG(x) x
#define IFNDBG(x)
#else
#define IFDBG(x)
#define IFNDBG(x) x
#endif
#ifdef __cplusplus
#define EXTERN_C_BEGIN extern "C" {
#define EXTERN_C_END }
#else
#define EXTERN_C_BEGIN
#define EXTERN_C_END
#endif
/*
* Assert Macros ------------------------------------------------------------
*
* Assert(a) Displays a message indicating the file and line number
* of this Assert() if a == 0. OK'ing an assert traps
* into the debugger.
*
* AssertSz(a,sz) Works like an Assert(), but displays the string sz
* along with the file and line number.
*
* Side asserts A side assert works like an Assert(), but evaluates
* 'a' even when asserts are not enabled.
*/
#if defined(DEBUG) || defined(ASSERTS_ENABLED)
#define IFTRAP(x) x
#else
#define IFTRAP(x) 0
#endif
#define Trap() IFTRAP(DebugTrapFn(1,__FILE__,__LINE__,"Trap"))
#define TrapSz(psz) IFTRAP(DebugTrapFn(1,__FILE__,__LINE__,psz))
#define Assert(t) IFTRAP(((t) ? 0 : DebugTrapFn(1,__FILE__,__LINE__,"Assertion Failure: " #t),0))
#define AssertSz(t,psz) IFTRAP(((t) ? 0 : DebugTrapFn(1,__FILE__,__LINE__,psz),0))
#define SideAssert(t) ((t) ? 0 : IFTRAP(DebugTrapFn(1,__FILE__,__LINE__,"Assertion Failure: " #t)),0)
#define SideAssertSz(t,psz) ((t) ? 0 : IFTRAP(DebugTrapFn(1,__FILE__,__LINE__,psz)),0)
/*
* Trace Macros -------------------------------------------------------------
*
* DebugTrace Use for arbitrary formatted output. It
* takes exactly the same arguments as the
* Windows wsprintf() function.
*/
#if defined(DEBUG) || defined(TRACES_ENABLED)
#define IFTRACE(x) x
#define DebugTrace DebugTraceFn
#define DEBUG_WSZ __wsz
#define MK_DEBUG_WSZ(_s,_c) \
LPWSTR __wsz; \
__wsz = static_cast<LPWSTR>(_alloca(((_c) + 1) * sizeof(WCHAR))); \
wcsncpy (__wsz, _s, (_c) + 1); \
__wsz[_c] = 0 \
#else
#define IFTRACE(x) 0
#define DebugTrace
#define DEBUG_WSZ NULL
#define MK_DEBUG_WSZ(_s,_c)
#endif
/* ------------------------------------------------------------------------
*
* .INI triggered traces
*/
#ifdef DEBUG
#define DEFINE_TRACE(trace) int g_fTrace##trace
#define DECLARE_TRACE(trace) extern DEFINE_TRACE(trace)
#define DO_TRACE(trace) !g_fTrace##trace ? 0 : DebugTraceFn
#define INIT_TRACE(trace) g_fTrace##trace = GetPrivateProfileInt( gc_szDbgTraces, #trace, FALSE, gc_szDbgIni )
// Convenience macro for DEBUG code. Will cause an error on non-debug builds.
#define DEBUG_TRACE_TEST(trace) g_fTrace##trace
#else
#define DEFINE_TRACE(trace)
#define DECLARE_TRACE(trace)
#define DO_TRACE(trace) DebugTrace
#define INIT_TRACE(trace)
//#define DEBUG_TRACETEST(trace) // Purposefully cause an error on non-debug builds
#endif
/* Debugging Functions ---------------------------------------------------- */
#define EXPORTDBG
EXTERN_C_BEGIN
INT EXPORTDBG __cdecl DebugTrapFn(int fFatal, char *pszFile, int iLine, char *pszFormat, ...);
INT EXPORTDBG __cdecl DebugTraceFn(char *pszFormat, ...);
VOID EXPORTDBG __cdecl GetCallStack (DWORD *pdwCaller, int cSkip, int cFind);
BOOL EXPORTDBG __cdecl GetSymbolName (DWORD dwAddr, LPSTR szMod, LPSTR szFn, DWORD * pdwDisp);
EXTERN_C_END
// Symbolic names ------------------------------------------------------------
//
#include <imagehlp.h>
enum { CB_SYM_MAX = 256 };
enum { CB_MOD_MAX = 64 };
enum { NCALLERS = 10 };
EXTERN_C_BEGIN
typedef BOOL (__stdcall SYMINITIALIZE) (HANDLE hProc, LPSTR lpszSynPath, BOOL fInvadeProc);
typedef BOOL (__stdcall SYMGETMODULE) (HANDLE hProc, DWORD dwAddr, PIMAGEHLP_MODULE pmod);
typedef BOOL (__stdcall SYMGETSYMBOL) (HANDLE hProc, DWORD dwAddr, PDWORD pdwDisp, PIMAGEHLP_SYMBOL psym);
typedef BOOL (__stdcall SYMUNDECORATE) (PIMAGEHLP_SYMBOL psym, LPSTR lpszUnDecName, DWORD cbBuf);
EXTERN_C_END
/* Debugging Strings ------------------------------------------------------ */
EXTERN_C_BEGIN
// Inifile name -- must be set by calling code!
extern const CHAR gc_szDbgIni[];
// Strings set in caldbg.c for use in calling code.
extern const CHAR gc_szDbgAssertLeaks[];
extern const CHAR gc_szDbgAssertCloses[];
extern const CHAR gc_szDbgDebugTrace[];
extern const CHAR gc_szDbgEventLog[];
extern const CHAR gc_szDbgGeneral[];
extern const CHAR gc_szDbgLeakLogging[];
extern const CHAR gc_szDbgLogFile[];
extern const CHAR gc_szDbgRecordResources[];
extern const CHAR gc_szDbgSymbolicDumps[];
extern const CHAR gc_szDbgTraces[];
extern const CHAR gc_szDbgUseVirtual[];
extern const CHAR gc_szDbgUseExchmem[];
EXTERN_C_END
/* Virtual Allocations ---------------------------------------------------- */
EXTERN_C_BEGIN
VOID * EXPORTDBG __cdecl VMAlloc(ULONG);
VOID * EXPORTDBG __cdecl VMAllocEx(ULONG, ULONG);
VOID * EXPORTDBG __cdecl VMRealloc(VOID *, ULONG);
VOID * EXPORTDBG __cdecl VMReallocEx(VOID *, ULONG, ULONG);
ULONG EXPORTDBG __cdecl VMGetSize(VOID *);
ULONG EXPORTDBG __cdecl VMGetSizeEx(VOID *, ULONG);
VOID EXPORTDBG __cdecl VMFree(VOID *);
VOID EXPORTDBG __cdecl VMFreeEx(VOID *, ULONG);
EXTERN_C_END
#endif