435 lines
16 KiB
C++
435 lines
16 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: wx/msw/debughlp.h
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// Purpose: wraps dbghelp.h standard file
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// Author: Vadim Zeitlin, Suzumizaki-kimitaka
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// Created: 2005-01-08 (extracted from msw/crashrpt.cpp)
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// Copyright: (c) 2003-2005 Vadim Zeitlin <vadim@wxwindows.org>
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_MSW_DEBUGHLPH_H_
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#define _WX_MSW_DEBUGHLPH_H_
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#include "wx/dynlib.h"
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#include "wx/msw/wrapwin.h"
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#ifdef __VISUALC__
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// Disable a warning that we can do nothing about: we get it at least for
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// imagehlp.h from 8.1 Windows kit when using VC14.
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#pragma warning(push)
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// 'typedef ': ignored on left of '' when no variable is declared
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#pragma warning(disable:4091)
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#endif
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#include <imagehlp.h>
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#ifdef __VISUALC__
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#pragma warning(pop)
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#endif
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#include "wx/msw/private.h"
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// wxUSE_DBGHELP can be predefined on the compiler command line to force using
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// dbghelp.dll even if it's not detected or, on the contrary, avoid using even
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// if it's available.
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#ifndef wxUSE_DBGHELP
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// The only compiler which is known to have the necessary headers is MSVC.
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#ifdef __VISUALC__
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// MSVC7.1 shipped with API v9 and we don't support anything earlier
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// anyhow.
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#if API_VERSION_NUMBER >= 9
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#define wxUSE_DBGHELP 1
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#else
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#define wxUSE_DBGHELP 0
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#endif
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#else
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#define wxUSE_DBGHELP 0
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#endif
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#endif
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#if wxUSE_DBGHELP
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/*
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The table below shows which functions are exported by dbghelp.dll.
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On 64 bit Windows, there seems to be no difference between 32bit dll and 64bit
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one. Vista-64 and Win8-64 look the same, but "Ex" and "ExW" versions exist only
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in Windows 8.
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Note that SymGetLineFromAddrW and EnumerateLoadedModulesW DON'T exist at all.
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function | Windows | XP-32 Vista-64 Win8-64
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SymEnumSymbolsW n/a v v
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SymFromAddrW n/a v v
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SymInitializeW n/a v v
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SymEnumSymbols v v v
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SymFromAddr v v v
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SymInitialize v v v
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SymGetLineFromAddrW64 n/a v v
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SymGetLineFromAddr64 v v v
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SymGetLineFromAddrW n/a n/a n/a
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SymGetLineFromAddr v v v
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EnumerateLoadedModulesW64 n/a v v
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EnumerateLoadedModules64 v v v
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EnumerateLoadedModulesW n/a n/a n/a
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EnumerateLoadedModules v v v
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*/
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// It's not really clear whether API v10 is used by anything as VC8 still used
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// v9, just as MSVC7.1, while VC9 already used v11, but provide support for it
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// just in case.
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#if API_VERSION_NUMBER < 10/*{{{*/
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typedef BOOL
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(CALLBACK *PENUMLOADED_MODULES_CALLBACKW64)(PWSTR ModuleName,
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DWORD64 ModuleBase,
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ULONG ModuleSize,
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PVOID UserContext);
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typedef struct _IMAGEHLP_LINEW64
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{
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DWORD SizeOfStruct;
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PVOID Key;
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DWORD LineNumber;
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PWSTR FileName;
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DWORD64 Address;
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} IMAGEHLP_LINEW64, *PIMAGEHLP_LINEW64;
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typedef struct _SYMBOL_INFOW
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{
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ULONG SizeOfStruct;
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ULONG TypeIndex;
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ULONG64 Reserved[2];
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ULONG Index;
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ULONG Size;
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ULONG64 ModBase;
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ULONG Flags;
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ULONG64 Value;
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ULONG64 Address;
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ULONG Register;
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ULONG Scope;
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ULONG Tag;
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ULONG NameLen;
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ULONG MaxNameLen;
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WCHAR Name[1];
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} SYMBOL_INFOW, *PSYMBOL_INFOW;
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typedef BOOL
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(CALLBACK *PSYM_ENUMERATESYMBOLS_CALLBACKW)(PSYMBOL_INFOW pSymInfo,
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ULONG SymbolSize,
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PVOID UserContext);
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typedef BOOL
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(CALLBACK *PSYM_ENUMERATESYMBOLS_CALLBACK)(PSYMBOL_INFO pSymInfo,
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ULONG SymbolSize,
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PVOID UserContext);
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#endif // API_VERSION_NUMBER < 10/*}}}*/
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// wx-prefixed types map to either the ANSI or Unicode ("W") version depending
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// on the build of wx itself.
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#ifdef UNICODE
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#define wxPSYM_ENUMERATESYMBOLS_CALLBACK PSYM_ENUMERATESYMBOLS_CALLBACKW
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#else // !UNICODE
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#define wxPSYM_ENUMERATESYMBOLS_CALLBACK PSYM_ENUMERATESYMBOLS_CALLBACK
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#endif // UNICODE/!UNICODE
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// This one could be already defined by wx/msw/stackwalk.h
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#ifndef wxSYMBOL_INFO
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#ifdef UNICODE
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#define wxSYMBOL_INFO SYMBOL_INFOW
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#else // !UNICODE
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#define wxSYMBOL_INFO SYMBOL_INFO
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#endif // UNICODE/!UNICODE
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#endif // !defined(wxSYMBOL_INFO)
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typedef wxSYMBOL_INFO* wxPSYMBOL_INFO;
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// This differs from PENUMLOADED_MODULES_CALLBACK[W]64 in that it always uses
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// "const" for its first argument when the SDK used to pass a non-const string
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// here until API_VERSION_NUMBER==11, so we can't just define it as an existing
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// typedef.
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typedef BOOL
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(CALLBACK *wxPENUMLOADED_MODULES_CALLBACK)(const wxChar* moduleName,
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DWORD64 moduleBase,
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ULONG moduleSize,
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void *userContext);
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// ----------------------------------------------------------------------------
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// wxDbgHelpDLL: dynamically load dbghelp.dll functions
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// ----------------------------------------------------------------------------
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// wrapper for some functions from dbghelp.dll
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//
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// MT note: this class is not MT safe and should be only used from a single
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// thread at a time (this is so because dbghelp.dll is not MT-safe
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// itself anyhow)
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class wxDbgHelpDLL
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{
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public:
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// some useful constants not present in debughlp.h (stolen from DIA SDK)
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enum BasicType
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{
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BASICTYPE_NOTYPE = 0,
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BASICTYPE_VOID = 1,
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BASICTYPE_CHAR = 2,
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BASICTYPE_WCHAR = 3,
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BASICTYPE_INT = 6,
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BASICTYPE_UINT = 7,
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BASICTYPE_FLOAT = 8,
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BASICTYPE_BCD = 9,
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BASICTYPE_BOOL = 10,
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BASICTYPE_LONG = 13,
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BASICTYPE_ULONG = 14,
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BASICTYPE_CURRENCY = 25,
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BASICTYPE_DATE = 26,
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BASICTYPE_VARIANT = 27,
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BASICTYPE_COMPLEX = 28,
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BASICTYPE_BIT = 29,
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BASICTYPE_BSTR = 30,
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BASICTYPE_HRESULT = 31,
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BASICTYPE_MAX
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};
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enum SymbolTag
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{
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SYMBOL_TAG_NULL,
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SYMBOL_TAG_EXE,
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SYMBOL_TAG_COMPILAND,
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SYMBOL_TAG_COMPILAND_DETAILS,
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SYMBOL_TAG_COMPILAND_ENV,
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SYMBOL_TAG_FUNCTION,
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SYMBOL_TAG_BLOCK,
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SYMBOL_TAG_DATA,
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SYMBOL_TAG_ANNOTATION,
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SYMBOL_TAG_LABEL,
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SYMBOL_TAG_PUBLIC_SYMBOL,
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SYMBOL_TAG_UDT,
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SYMBOL_TAG_ENUM,
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SYMBOL_TAG_FUNCTION_TYPE,
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SYMBOL_TAG_POINTER_TYPE,
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SYMBOL_TAG_ARRAY_TYPE,
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SYMBOL_TAG_BASE_TYPE,
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SYMBOL_TAG_TYPEDEF,
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SYMBOL_TAG_BASE_CLASS,
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SYMBOL_TAG_FRIEND,
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SYMBOL_TAG_FUNCTION_ARG_TYPE,
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SYMBOL_TAG_FUNC_DEBUG_START,
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SYMBOL_TAG_FUNC_DEBUG_END,
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SYMBOL_TAG_USING_NAMESPACE,
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SYMBOL_TAG_VTABLE_SHAPE,
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SYMBOL_TAG_VTABLE,
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SYMBOL_TAG_CUSTOM,
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SYMBOL_TAG_THUNK,
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SYMBOL_TAG_CUSTOM_TYPE,
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SYMBOL_TAG_MANAGED_TYPE,
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SYMBOL_TAG_DIMENSION,
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SYMBOL_TAG_MAX
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};
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enum DataKind
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{
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DATA_UNKNOWN,
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DATA_LOCAL,
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DATA_STATIC_LOCAL,
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DATA_PARAM,
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DATA_OBJECT_PTR, // "this" pointer
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DATA_FILE_STATIC,
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DATA_GLOBAL,
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DATA_MEMBER,
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DATA_STATIC_MEMBER,
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DATA_CONSTANT,
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DATA_MAX
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};
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enum UdtKind
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{
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UDT_STRUCT,
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UDT_CLASS,
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UDT_UNION,
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UDT_MAX
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};
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// function types
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typedef DWORD (WINAPI *SymGetOptions_t)();
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typedef DWORD (WINAPI *SymSetOptions_t)(DWORD);
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typedef BOOL (WINAPI *SymInitialize_t)(HANDLE, LPCSTR, BOOL);
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typedef BOOL (WINAPI *SymInitializeW_t)(HANDLE, LPCWSTR, BOOL);
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typedef BOOL (WINAPI *StackWalk_t)(DWORD, HANDLE, HANDLE, LPSTACKFRAME,
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LPVOID, PREAD_PROCESS_MEMORY_ROUTINE,
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PFUNCTION_TABLE_ACCESS_ROUTINE,
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PGET_MODULE_BASE_ROUTINE,
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PTRANSLATE_ADDRESS_ROUTINE);
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typedef BOOL (WINAPI *SymFromAddr_t)(HANDLE, DWORD64, PDWORD64, PSYMBOL_INFO);
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typedef BOOL (WINAPI *SymFromAddrW_t)(HANDLE, DWORD64, PDWORD64, PSYMBOL_INFOW);
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typedef LPVOID (WINAPI *SymFunctionTableAccess_t)(HANDLE, DWORD_PTR);
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typedef DWORD_PTR (WINAPI *SymGetModuleBase_t)(HANDLE, DWORD_PTR);
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typedef BOOL (WINAPI *SymGetLineFromAddr_t)(HANDLE, DWORD,
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PDWORD, PIMAGEHLP_LINE);
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typedef BOOL (WINAPI *SymGetLineFromAddr64_t)(HANDLE, DWORD64,
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PDWORD, PIMAGEHLP_LINE64);
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typedef BOOL (WINAPI *SymGetLineFromAddrW64_t)(HANDLE, DWORD64,
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PDWORD, PIMAGEHLP_LINEW64);
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typedef BOOL (WINAPI *SymSetContext_t)(HANDLE, PIMAGEHLP_STACK_FRAME,
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PIMAGEHLP_CONTEXT);
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typedef BOOL (WINAPI *SymEnumSymbols_t)(HANDLE, ULONG64, PCSTR,
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PSYM_ENUMERATESYMBOLS_CALLBACK,
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const PVOID);
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typedef BOOL (WINAPI *SymEnumSymbolsW_t)(HANDLE, ULONG64, PCWSTR,
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PSYM_ENUMERATESYMBOLS_CALLBACKW,
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const PVOID);
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typedef BOOL (WINAPI *SymGetTypeInfo_t)(HANDLE, DWORD64, ULONG,
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IMAGEHLP_SYMBOL_TYPE_INFO, PVOID);
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typedef BOOL (WINAPI *SymCleanup_t)(HANDLE);
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typedef BOOL (WINAPI *EnumerateLoadedModules_t)(HANDLE, PENUMLOADED_MODULES_CALLBACK, PVOID);
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typedef BOOL (WINAPI *EnumerateLoadedModules64_t)(HANDLE, PENUMLOADED_MODULES_CALLBACK64, PVOID);
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typedef BOOL (WINAPI *EnumerateLoadedModulesW64_t)(HANDLE, PENUMLOADED_MODULES_CALLBACKW64, PVOID);
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typedef BOOL (WINAPI *MiniDumpWriteDump_t)(HANDLE, DWORD, HANDLE,
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MINIDUMP_TYPE,
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CONST PMINIDUMP_EXCEPTION_INFORMATION,
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CONST PMINIDUMP_USER_STREAM_INFORMATION,
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CONST PMINIDUMP_CALLBACK_INFORMATION);
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// Higher level functions selecting the right debug help library function
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// to call: for CallFoo(), it can be Foo(), Foo64(), FooW() or FooW64()
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// depending on the build options and function availability.
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//
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// They also provide more convenient to use wx-specific API, e.g. work with
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// wxString instead of char/wchar_t pointers and omit the arguments we
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// don't need.
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static BOOL CallSymInitialize(HANDLE, BOOL);
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static BOOL CallEnumerateLoadedModules(HANDLE, wxPENUMLOADED_MODULES_CALLBACK, PVOID);
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static BOOL CallSymFromAddr(HANDLE, DWORD64,
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size_t* offset, wxString* name);
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static BOOL CallSymGetLineFromAddr(HANDLE, DWORD64,
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wxString* fileName, size_t* line);
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static BOOL CallSymEnumSymbols(HANDLE hProcess,
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ULONG64 baseOfDll,
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wxPSYM_ENUMERATESYMBOLS_CALLBACK callback,
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const PVOID callbackParam);
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// The macro called by wxDO_FOR_ALL_SYM_FUNCS() below takes 2 arguments:
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// the name of the function in the program code, which never has "64"
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// suffix, and the name of the function in the DLL which can have "64"
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// suffix in some cases. These 2 helper macros call the macro with the
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// correct arguments in both cases.
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#define wxSYM_CALL(what, name) what(name, name)
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#if defined(_M_AMD64)
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#define wxSYM_CALL_64(what, name) what(name, name ## 64)
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// Also undo all the "helpful" definitions done by imagehlp.h that map 32
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// bit functions to 64 bit ones, we don't need this as we do it ourselves.
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#undef StackWalk
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#undef SymFunctionTableAccess
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#undef SymGetModuleBase
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#undef SymGetLineFromAddr
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#undef EnumerateLoadedModules
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#else
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#define wxSYM_CALL_64(what, name) what(name, name)
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#endif
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#define wxSYM_CALL_ALWAYS_W(what, name) what(name ## W, name ## W)
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#define wxSYM_CALL_ALTERNATIVES(what, name) \
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what(name, name); \
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what(name ## 64, name ## 64); \
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what(name ## W64, name ## W64)
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#define wxDO_FOR_ALL_SYM_FUNCS_REQUIRED_PUBLIC(what) \
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wxSYM_CALL_64(what, StackWalk); \
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wxSYM_CALL_64(what, SymFunctionTableAccess); \
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wxSYM_CALL_64(what, SymGetModuleBase); \
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\
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wxSYM_CALL(what, SymGetOptions); \
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wxSYM_CALL(what, SymSetOptions); \
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wxSYM_CALL(what, SymSetContext); \
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wxSYM_CALL(what, SymGetTypeInfo); \
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wxSYM_CALL(what, SymCleanup); \
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wxSYM_CALL(what, MiniDumpWriteDump)
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#define wxDO_FOR_ALL_SYM_FUNCS_REQUIRED_PRIVATE(what) \
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wxSYM_CALL(what, SymInitialize); \
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wxSYM_CALL(what, SymFromAddr); \
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wxSYM_CALL(what, SymEnumSymbols)
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#define wxDO_FOR_ALL_SYM_FUNCS_REQUIRED(what) \
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wxDO_FOR_ALL_SYM_FUNCS_REQUIRED_PRIVATE(what); \
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wxDO_FOR_ALL_SYM_FUNCS_REQUIRED_PUBLIC(what)
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// Alternation will work when the following functions are not found,
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// therefore they are not included in REQUIRED version.
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#define wxDO_FOR_ALL_SYM_FUNCS_OPTIONAL(what) \
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wxSYM_CALL_ALTERNATIVES(what, SymGetLineFromAddr); \
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wxSYM_CALL_ALTERNATIVES(what, EnumerateLoadedModules); \
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wxSYM_CALL_ALWAYS_W(what, SymInitialize); \
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wxSYM_CALL_ALWAYS_W(what, SymFromAddr); \
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wxSYM_CALL_ALWAYS_W(what, SymEnumSymbols)
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#define wxDO_FOR_ALL_SYM_FUNCS(what) \
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wxDO_FOR_ALL_SYM_FUNCS_REQUIRED(what); \
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wxDO_FOR_ALL_SYM_FUNCS_OPTIONAL(what)
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#define wxDECLARE_SYM_FUNCTION(func, name) static func ## _t func
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wxDO_FOR_ALL_SYM_FUNCS_REQUIRED_PUBLIC(wxDECLARE_SYM_FUNCTION);
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private:
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wxDO_FOR_ALL_SYM_FUNCS_REQUIRED_PRIVATE(wxDECLARE_SYM_FUNCTION);
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wxDO_FOR_ALL_SYM_FUNCS_OPTIONAL(wxDECLARE_SYM_FUNCTION);
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public:
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#undef wxDECLARE_SYM_FUNCTION
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// load all functions from DLL, return true if ok
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static bool Init();
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// return the string with the error message explaining why Init() failed
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static const wxString& GetErrorMessage();
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// log error returned by the given function to debug output
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static void LogError(const wxChar *func);
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// return textual representation of the value of given symbol
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static wxString DumpSymbol(wxPSYMBOL_INFO pSymInfo, void *pVariable);
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// return the name of the symbol with given type index
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static wxString GetSymbolName(wxPSYMBOL_INFO pSymInfo);
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private:
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// dereference the given symbol, i.e. return symbol which is not a
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// pointer/reference any more
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//
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// if ppData != NULL, dereference the pointer as many times as we
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// dereferenced the symbol
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//
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// return the tag of the dereferenced symbol
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static SymbolTag DereferenceSymbol(wxPSYMBOL_INFO pSymInfo, void **ppData);
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static wxString DumpField(wxPSYMBOL_INFO pSymInfo,
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void *pVariable,
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unsigned level);
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static wxString DumpBaseType(BasicType bt, DWORD64 length, void *pVariable);
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static wxString DumpUDT(wxPSYMBOL_INFO pSymInfo,
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void *pVariable,
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unsigned level = 0);
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static bool BindDbgHelpFunctions(const wxDynamicLibrary& dllDbgHelp);
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static bool DoInit();
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};
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#endif // wxUSE_DBGHELP
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#endif // _WX_MSW_DEBUGHLPH_H_
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