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Easy Detection of Memory Leaks

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4 Aug 20058 min read 186.7K   8.6K   122  
Describes a tool for easy detection of memory leaks.
/*++ BUILD Version: 0001     Increment this if a change has global effects

Copyright (c) Microsoft Corporation. All rights reserved.

Module Name:

    dbghelp.h

Abstract:

    This module defines the prototypes and constants required for the image
    help routines.

    Contains debugging support routines that are redistributable.

Revision History:

--*/

#ifndef _DBGHELP_
#define _DBGHELP_

#if _MSC_VER > 1020
#pragma once
#endif


// As a general principal always call the 64 bit version
// of every API, if a choice exists.  The 64 bit version
// works great on 32 bit platforms, and is forward
// compatible to 64 bit platforms.

#ifdef _WIN64
#ifndef _IMAGEHLP64
#define _IMAGEHLP64
#endif
#endif


#ifdef __cplusplus
extern "C" {
#endif

#ifdef _IMAGEHLP_SOURCE_
 #define IMAGEAPI __stdcall
 #define DBHLP_DEPRECIATED
#else
 #define IMAGEAPI DECLSPEC_IMPORT __stdcall
 #if (_MSC_VER >= 1300) && !defined(MIDL_PASS)
  #define DBHLP_DEPRECIATED   __declspec(deprecated)
 #else
  #define DBHLP_DEPRECIATED
 #endif
#endif

#define DBHLPAPI IMAGEAPI

#define IMAGE_SEPARATION (64*1024)

typedef struct _LOADED_IMAGE {
    PSTR                  ModuleName;
    HANDLE                hFile;
    PUCHAR                MappedAddress;
#ifdef _IMAGEHLP64
    PIMAGE_NT_HEADERS64   FileHeader;
#else
    PIMAGE_NT_HEADERS32   FileHeader;
#endif
    PIMAGE_SECTION_HEADER LastRvaSection;
    ULONG                 NumberOfSections;
    PIMAGE_SECTION_HEADER Sections;
    ULONG                 Characteristics;
    BOOLEAN               fSystemImage;
    BOOLEAN               fDOSImage;
    LIST_ENTRY            Links;
    ULONG                 SizeOfImage;
} LOADED_IMAGE, *PLOADED_IMAGE;

#define MAX_SYM_NAME            2000


// Error codes set by dbghelp functions.  Call GetLastError
// to see them.
// Dbghelp also sets error codes found in winerror.h

#define ERROR_IMAGE_NOT_STRIPPED    0x8800  // the image is not stripped.  No dbg file available.
#define ERROR_NO_DBG_POINTER        0x8801  // image is stripped but there is no pointer to a dbg file
#define ERROR_NO_PDB_POINTER        0x8802  // image does not point to a pdb file

HANDLE
IMAGEAPI
FindDebugInfoFile (
    PCSTR FileName,
    PCSTR SymbolPath,
    PSTR  DebugFilePath
    );

typedef BOOL
(CALLBACK *PFIND_DEBUG_FILE_CALLBACK)(
    HANDLE FileHandle,
    PSTR FileName,
    PVOID CallerData
    );

HANDLE
IMAGEAPI
FindDebugInfoFileEx (
    PCSTR FileName,
    PCSTR SymbolPath,
    PSTR  DebugFilePath,
    PFIND_DEBUG_FILE_CALLBACK Callback,
    PVOID CallerData
    );

typedef BOOL
(CALLBACK *PFIND_DEBUG_FILE_CALLBACKW)(
    HANDLE FileHandle,
    PCWSTR FileName,
    PVOID  CallerData
    );

HANDLE
IMAGEAPI
FindDebugInfoFileExW (
    PCWSTR FileName,
    PCWSTR SymbolPath,
    PWSTR  DebugFilePath,
    PFIND_DEBUG_FILE_CALLBACKW Callback,
    PVOID  CallerData
    );

typedef BOOL
(CALLBACK *PFINDFILEINPATHCALLBACK)(
    PCSTR filename,
    PVOID context
    );

BOOL
IMAGEAPI
SymFindFileInPath(
    HANDLE hprocess,
    PCSTR  SearchPath,
    PCSTR  FileName,
    PVOID  id,
    DWORD  two,
    DWORD  three,
    DWORD  flags,
    PSTR   FoundFile,
    PFINDFILEINPATHCALLBACK callback,
    PVOID  context
    );

typedef BOOL
(CALLBACK *PFINDFILEINPATHCALLBACKW)(
    PCWSTR filename,
    PVOID  context
    );

BOOL
IMAGEAPI
SymFindFileInPathW(
    HANDLE  hprocess,
    PCWSTR  SearchPath,
    PCWSTR  FileName,
    PVOID   id,
    DWORD   two,
    DWORD   three,
    DWORD   flags,
    PWSTR   FoundFile,
    PFINDFILEINPATHCALLBACKW callback,
    PVOID   context
    );

HANDLE
IMAGEAPI
FindExecutableImage(
    PCSTR FileName,
    PCSTR SymbolPath,
    PSTR  ImageFilePath
    );

typedef BOOL
(CALLBACK *PFIND_EXE_FILE_CALLBACK)(
    HANDLE FileHandle,
    PCSTR  FileName,
    PVOID  CallerData
    );

HANDLE
IMAGEAPI
FindExecutableImageEx(
    PCSTR FileName,
    PCSTR SymbolPath,
    PSTR  ImageFilePath,
    PFIND_EXE_FILE_CALLBACK Callback,
    PVOID CallerData
    );

typedef BOOL
(CALLBACK *PFIND_EXE_FILE_CALLBACKW)(
    HANDLE FileHandle,
    PCWSTR FileName,
    PVOID  CallerData
    );

HANDLE
IMAGEAPI
FindExecutableImageExW(
    PCWSTR                   FileName,
    PCWSTR                   SymbolPath,
    PWSTR                    ImageFilePath,
    PFIND_EXE_FILE_CALLBACKW Callback,
    PVOID                    CallerData
    );

PIMAGE_NT_HEADERS
IMAGEAPI
ImageNtHeader (
    IN PVOID Base
    );

PVOID
IMAGEAPI
ImageDirectoryEntryToDataEx (
    IN PVOID Base,
    IN BOOLEAN MappedAsImage,
    IN USHORT DirectoryEntry,
    OUT PULONG Size,
    OUT PIMAGE_SECTION_HEADER *FoundHeader OPTIONAL
    );

PVOID
IMAGEAPI
ImageDirectoryEntryToData (
    IN PVOID Base,
    IN BOOLEAN MappedAsImage,
    IN USHORT DirectoryEntry,
    OUT PULONG Size
    );

PIMAGE_SECTION_HEADER
IMAGEAPI
ImageRvaToSection(
    IN PIMAGE_NT_HEADERS NtHeaders,
    IN PVOID Base,
    IN ULONG Rva
    );

PVOID
IMAGEAPI
ImageRvaToVa(
    IN PIMAGE_NT_HEADERS NtHeaders,
    IN PVOID Base,
    IN ULONG Rva,
    IN OUT PIMAGE_SECTION_HEADER *LastRvaSection
    );

#ifndef _WIN64
// This api won't be ported to Win64 - Fix your code.

typedef struct _IMAGE_DEBUG_INFORMATION {
    LIST_ENTRY List;
    DWORD ReservedSize;
    PVOID ReservedMappedBase;
    USHORT ReservedMachine;
    USHORT ReservedCharacteristics;
    DWORD ReservedCheckSum;
    DWORD ImageBase;
    DWORD SizeOfImage;

    DWORD ReservedNumberOfSections;
    PIMAGE_SECTION_HEADER ReservedSections;

    DWORD ReservedExportedNamesSize;
    PSTR ReservedExportedNames;

    DWORD ReservedNumberOfFunctionTableEntries;
    PIMAGE_FUNCTION_ENTRY ReservedFunctionTableEntries;
    DWORD ReservedLowestFunctionStartingAddress;
    DWORD ReservedHighestFunctionEndingAddress;

    DWORD ReservedNumberOfFpoTableEntries;
    PFPO_DATA ReservedFpoTableEntries;

    DWORD SizeOfCoffSymbols;
    PIMAGE_COFF_SYMBOLS_HEADER CoffSymbols;

    DWORD ReservedSizeOfCodeViewSymbols;
    PVOID ReservedCodeViewSymbols;

    PSTR ImageFilePath;
    PSTR ImageFileName;
    PSTR ReservedDebugFilePath;

    DWORD ReservedTimeDateStamp;

    BOOL  ReservedRomImage;
    PIMAGE_DEBUG_DIRECTORY ReservedDebugDirectory;
    DWORD ReservedNumberOfDebugDirectories;

    DWORD ReservedOriginalFunctionTableBaseAddress;

    DWORD Reserved[ 2 ];

} IMAGE_DEBUG_INFORMATION, *PIMAGE_DEBUG_INFORMATION;


PIMAGE_DEBUG_INFORMATION
IMAGEAPI
MapDebugInformation(
    HANDLE FileHandle,
    PSTR FileName,
    PSTR SymbolPath,
    DWORD ImageBase
    );

BOOL
IMAGEAPI
UnmapDebugInformation(
    PIMAGE_DEBUG_INFORMATION DebugInfo
    );

#endif

BOOL
IMAGEAPI
SearchTreeForFile(
    PCSTR RootPath,
    PCSTR InputPathName,
    PSTR  OutputPathBuffer
    );

BOOL
IMAGEAPI
SearchTreeForFileW(
    PCWSTR RootPath,
    PCWSTR InputPathName,
    PWSTR  OutputPathBuffer
    );

typedef BOOL
(CALLBACK *PENUMDIRTREE_CALLBACK)(
    LPCSTR FilePath,
    PVOID  CallerData
    );

BOOL
IMAGEAPI
EnumDirTree(
    HANDLE  hProcess,
    PCSTR   RootPath,
    PCSTR   InputPathName,
    PSTR    OutputPathBuffer,
    PENUMDIRTREE_CALLBACK Callback,
    PVOID   CallbackData
    );

typedef BOOL
(CALLBACK *PENUMDIRTREE_CALLBACKW)(
    PCWSTR FilePath,
    PVOID  CallerData
    );

BOOL
IMAGEAPI
EnumDirTreeW(
    HANDLE  hProcess,
    PCWSTR  RootPath,
    PCWSTR  InputPathName,
    PWSTR   OutputPathBuffer,
    PENUMDIRTREE_CALLBACKW Callback,
    PVOID   CallbackData
    );

BOOL
IMAGEAPI
MakeSureDirectoryPathExists(
    PCSTR DirPath
    );

//
// UnDecorateSymbolName Flags
//

#define UNDNAME_COMPLETE                 (0x0000)  // Enable full undecoration
#define UNDNAME_NO_LEADING_UNDERSCORES   (0x0001)  // Remove leading underscores from MS extended keywords
#define UNDNAME_NO_MS_KEYWORDS           (0x0002)  // Disable expansion of MS extended keywords
#define UNDNAME_NO_FUNCTION_RETURNS      (0x0004)  // Disable expansion of return type for primary declaration
#define UNDNAME_NO_ALLOCATION_MODEL      (0x0008)  // Disable expansion of the declaration model
#define UNDNAME_NO_ALLOCATION_LANGUAGE   (0x0010)  // Disable expansion of the declaration language specifier
#define UNDNAME_NO_MS_THISTYPE           (0x0020)  // NYI Disable expansion of MS keywords on the 'this' type for primary declaration
#define UNDNAME_NO_CV_THISTYPE           (0x0040)  // NYI Disable expansion of CV modifiers on the 'this' type for primary declaration
#define UNDNAME_NO_THISTYPE              (0x0060)  // Disable all modifiers on the 'this' type
#define UNDNAME_NO_ACCESS_SPECIFIERS     (0x0080)  // Disable expansion of access specifiers for members
#define UNDNAME_NO_THROW_SIGNATURES      (0x0100)  // Disable expansion of 'throw-signatures' for functions and pointers to functions
#define UNDNAME_NO_MEMBER_TYPE           (0x0200)  // Disable expansion of 'static' or 'virtual'ness of members
#define UNDNAME_NO_RETURN_UDT_MODEL      (0x0400)  // Disable expansion of MS model for UDT returns
#define UNDNAME_32_BIT_DECODE            (0x0800)  // Undecorate 32-bit decorated names
#define UNDNAME_NAME_ONLY                (0x1000)  // Crack only the name for primary declaration;
                                                                                                   //  return just [scope::]name.  Does expand template params
#define UNDNAME_NO_ARGUMENTS             (0x2000)  // Don't undecorate arguments to function
#define UNDNAME_NO_SPECIAL_SYMS          (0x4000)  // Don't undecorate special names (v-table, vcall, vector xxx, metatype, etc)

DWORD
IMAGEAPI
WINAPI
UnDecorateSymbolName(
    PCSTR   DecoratedName,         // Name to undecorate
    PSTR    UnDecoratedName,       // If NULL, it will be allocated
    DWORD   UndecoratedLength,     // The maximym length
    DWORD   Flags                  // See above.
    );

DWORD
IMAGEAPI
WINAPI
UnDecorateSymbolNameW(
    PCWSTR  DecoratedName,         // Name to undecorate
    PWSTR   UnDecoratedName,       // If NULL, it will be allocated
    DWORD   UndecoratedLength,     // The maximym length
    DWORD   Flags                  // See above.
    );

//
// these values are used for synthesized file types
// that can be passed in as image headers instead of
// the standard ones from ntimage.h
//

#define DBHHEADER_DEBUGDIRS     0x1

typedef struct _MODLOAD_DATA {
    DWORD   ssize;                  // size of this struct
    DWORD   ssig;                   // signature identifying the passed data
    PVOID   data;                   // pointer to passed data
    DWORD   size;                   // size of passed data
    DWORD   flags;                  // options
} MODLOAD_DATA, *PMODLOAD_DATA;

//
// StackWalking API
//

typedef enum {
    AddrMode1616,
    AddrMode1632,
    AddrModeReal,
    AddrModeFlat
} ADDRESS_MODE;

typedef struct _tagADDRESS64 {
    DWORD64       Offset;
    WORD          Segment;
    ADDRESS_MODE  Mode;
} ADDRESS64, *LPADDRESS64;

#if !defined(_IMAGEHLP_SOURCE_) && defined(_IMAGEHLP64)
#define ADDRESS ADDRESS64
#define LPADDRESS LPADDRESS64
#else
typedef struct _tagADDRESS {
    DWORD         Offset;
    WORD          Segment;
    ADDRESS_MODE  Mode;
} ADDRESS, *LPADDRESS;

__inline
void
Address32To64(
    LPADDRESS a32,
    LPADDRESS64 a64
    )
{
    a64->Offset = (ULONG64)(LONG64)(LONG)a32->Offset;
    a64->Segment = a32->Segment;
    a64->Mode = a32->Mode;
}

__inline
void
Address64To32(
    LPADDRESS64 a64,
    LPADDRESS a32
    )
{
    a32->Offset = (ULONG)a64->Offset;
    a32->Segment = a64->Segment;
    a32->Mode = a64->Mode;
}
#endif

//
// This structure is included in the STACKFRAME structure,
// and is used to trace through usermode callbacks in a thread's
// kernel stack.  The values must be copied by the kernel debugger
// from the DBGKD_GET_VERSION and WAIT_STATE_CHANGE packets.
//

//
// New KDHELP structure for 64 bit system support.
// This structure is preferred in new code.
//
typedef struct _KDHELP64 {

    //
    // address of kernel thread object, as provided in the
    // WAIT_STATE_CHANGE packet.
    //
    DWORD64   Thread;

    //
    // offset in thread object to pointer to the current callback frame
    // in kernel stack.
    //
    DWORD   ThCallbackStack;

    //
    // offset in thread object to pointer to the current callback backing
    // store frame in kernel stack.
    //
    DWORD   ThCallbackBStore;

    //
    // offsets to values in frame:
    //
    // address of next callback frame
    DWORD   NextCallback;

    // address of saved frame pointer (if applicable)
    DWORD   FramePointer;


    //
    // Address of the kernel function that calls out to user mode
    //
    DWORD64   KiCallUserMode;

    //
    // Address of the user mode dispatcher function
    //
    DWORD64   KeUserCallbackDispatcher;

    //
    // Lowest kernel mode address
    //
    DWORD64   SystemRangeStart;

    //
    // Address of the user mode exception dispatcher function.
    // Added in API version 10.
    //
    DWORD64   KiUserExceptionDispatcher;

    //
    // Stack bounds, added in API version 11.
    //
    DWORD64   StackBase;
    DWORD64   StackLimit;
    
    DWORD64   Reserved[5];

} KDHELP64, *PKDHELP64;

#if !defined(_IMAGEHLP_SOURCE_) && defined(_IMAGEHLP64)
#define KDHELP KDHELP64
#define PKDHELP PKDHELP64
#else
typedef struct _KDHELP {

    //
    // address of kernel thread object, as provided in the
    // WAIT_STATE_CHANGE packet.
    //
    DWORD   Thread;

    //
    // offset in thread object to pointer to the current callback frame
    // in kernel stack.
    //
    DWORD   ThCallbackStack;

    //
    // offsets to values in frame:
    //
    // address of next callback frame
    DWORD   NextCallback;

    // address of saved frame pointer (if applicable)
    DWORD   FramePointer;

    //
    // Address of the kernel function that calls out to user mode
    //
    DWORD   KiCallUserMode;

    //
    // Address of the user mode dispatcher function
    //
    DWORD   KeUserCallbackDispatcher;

    //
    // Lowest kernel mode address
    //
    DWORD   SystemRangeStart;

    //
    // offset in thread object to pointer to the current callback backing
    // store frame in kernel stack.
    //
    DWORD   ThCallbackBStore;

    //
    // Address of the user mode exception dispatcher function.
    // Added in API version 10.
    //
    DWORD   KiUserExceptionDispatcher;

    //
    // Stack bounds, added in API version 11.
    //
    DWORD   StackBase;
    DWORD   StackLimit;
    
    DWORD   Reserved[5];

} KDHELP, *PKDHELP;

__inline
void
KdHelp32To64(
    PKDHELP p32,
    PKDHELP64 p64
    )
{
    p64->Thread = p32->Thread;
    p64->ThCallbackStack = p32->ThCallbackStack;
    p64->NextCallback = p32->NextCallback;
    p64->FramePointer = p32->FramePointer;
    p64->KiCallUserMode = p32->KiCallUserMode;
    p64->KeUserCallbackDispatcher = p32->KeUserCallbackDispatcher;
    p64->SystemRangeStart = p32->SystemRangeStart;
    p64->KiUserExceptionDispatcher = p32->KiUserExceptionDispatcher;
    p64->StackBase = p32->StackBase;
    p64->StackLimit = p32->StackLimit;
}
#endif

typedef struct _tagSTACKFRAME64 {
    ADDRESS64   AddrPC;               // program counter
    ADDRESS64   AddrReturn;           // return address
    ADDRESS64   AddrFrame;            // frame pointer
    ADDRESS64   AddrStack;            // stack pointer
    ADDRESS64   AddrBStore;           // backing store pointer
    PVOID       FuncTableEntry;       // pointer to pdata/fpo or NULL
    DWORD64     Params[4];            // possible arguments to the function
    BOOL        Far;                  // WOW far call
    BOOL        Virtual;              // is this a virtual frame?
    DWORD64     Reserved[3];
    KDHELP64    KdHelp;
} STACKFRAME64, *LPSTACKFRAME64;

#if !defined(_IMAGEHLP_SOURCE_) && defined(_IMAGEHLP64)
#define STACKFRAME STACKFRAME64
#define LPSTACKFRAME LPSTACKFRAME64
#else
typedef struct _tagSTACKFRAME {
    ADDRESS     AddrPC;               // program counter
    ADDRESS     AddrReturn;           // return address
    ADDRESS     AddrFrame;            // frame pointer
    ADDRESS     AddrStack;            // stack pointer
    PVOID       FuncTableEntry;       // pointer to pdata/fpo or NULL
    DWORD       Params[4];            // possible arguments to the function
    BOOL        Far;                  // WOW far call
    BOOL        Virtual;              // is this a virtual frame?
    DWORD       Reserved[3];
    KDHELP      KdHelp;
    ADDRESS     AddrBStore;           // backing store pointer
} STACKFRAME, *LPSTACKFRAME;
#endif


typedef
BOOL
(__stdcall *PREAD_PROCESS_MEMORY_ROUTINE64)(
    HANDLE      hProcess,
    DWORD64     qwBaseAddress,
    PVOID       lpBuffer,
    DWORD       nSize,
    LPDWORD     lpNumberOfBytesRead
    );

typedef
PVOID
(__stdcall *PFUNCTION_TABLE_ACCESS_ROUTINE64)(
    HANDLE  hProcess,
    DWORD64 AddrBase
    );

typedef
DWORD64
(__stdcall *PGET_MODULE_BASE_ROUTINE64)(
    HANDLE  hProcess,
    DWORD64 Address
    );

typedef
DWORD64
(__stdcall *PTRANSLATE_ADDRESS_ROUTINE64)(
    HANDLE    hProcess,
    HANDLE    hThread,
    LPADDRESS64 lpaddr
    );

BOOL
IMAGEAPI
StackWalk64(
    DWORD                             MachineType,
    HANDLE                            hProcess,
    HANDLE                            hThread,
    LPSTACKFRAME64                    StackFrame,
    PVOID                             ContextRecord,
    PREAD_PROCESS_MEMORY_ROUTINE64    ReadMemoryRoutine,
    PFUNCTION_TABLE_ACCESS_ROUTINE64  FunctionTableAccessRoutine,
    PGET_MODULE_BASE_ROUTINE64        GetModuleBaseRoutine,
    PTRANSLATE_ADDRESS_ROUTINE64      TranslateAddress
    );

#if !defined(_IMAGEHLP_SOURCE_) && defined(_IMAGEHLP64)

#define PREAD_PROCESS_MEMORY_ROUTINE PREAD_PROCESS_MEMORY_ROUTINE64
#define PFUNCTION_TABLE_ACCESS_ROUTINE PFUNCTION_TABLE_ACCESS_ROUTINE64
#define PGET_MODULE_BASE_ROUTINE PGET_MODULE_BASE_ROUTINE64
#define PTRANSLATE_ADDRESS_ROUTINE PTRANSLATE_ADDRESS_ROUTINE64

#define StackWalk StackWalk64

#else

typedef
BOOL
(__stdcall *PREAD_PROCESS_MEMORY_ROUTINE)(
    HANDLE  hProcess,
    DWORD   lpBaseAddress,
    PVOID   lpBuffer,
    DWORD   nSize,
    PDWORD  lpNumberOfBytesRead
    );

typedef
PVOID
(__stdcall *PFUNCTION_TABLE_ACCESS_ROUTINE)(
    HANDLE  hProcess,
    DWORD   AddrBase
    );

typedef
DWORD
(__stdcall *PGET_MODULE_BASE_ROUTINE)(
    HANDLE  hProcess,
    DWORD   Address
    );

typedef
DWORD
(__stdcall *PTRANSLATE_ADDRESS_ROUTINE)(
    HANDLE    hProcess,
    HANDLE    hThread,
    LPADDRESS lpaddr
    );

BOOL
IMAGEAPI
StackWalk(
    DWORD                             MachineType,
    HANDLE                            hProcess,
    HANDLE                            hThread,
    LPSTACKFRAME                      StackFrame,
    PVOID                             ContextRecord,
    PREAD_PROCESS_MEMORY_ROUTINE      ReadMemoryRoutine,
    PFUNCTION_TABLE_ACCESS_ROUTINE    FunctionTableAccessRoutine,
    PGET_MODULE_BASE_ROUTINE          GetModuleBaseRoutine,
    PTRANSLATE_ADDRESS_ROUTINE        TranslateAddress
    );

#endif


#define API_VERSION_NUMBER 11

typedef struct API_VERSION {
    USHORT  MajorVersion;
    USHORT  MinorVersion;
    USHORT  Revision;
    USHORT  Reserved;
} API_VERSION, *LPAPI_VERSION;

LPAPI_VERSION
IMAGEAPI
ImagehlpApiVersion(
    VOID
    );

LPAPI_VERSION
IMAGEAPI
ImagehlpApiVersionEx(
    LPAPI_VERSION AppVersion
    );

DWORD
IMAGEAPI
GetTimestampForLoadedLibrary(
    HMODULE Module
    );

//
// typedefs for function pointers
//
typedef BOOL
(CALLBACK *PSYM_ENUMMODULES_CALLBACK64)(
    PCSTR   ModuleName,
    DWORD64 BaseOfDll,
    PVOID   UserContext
    );

typedef BOOL
(CALLBACK *PSYM_ENUMMODULES_CALLBACKW64)(
    PCWSTR  ModuleName,
    DWORD64 BaseOfDll,
    PVOID   UserContext
    );

typedef BOOL
(CALLBACK *PENUMLOADED_MODULES_CALLBACK64)(
    PSTR ModuleName,
    DWORD64 ModuleBase,
    ULONG ModuleSize,
    PVOID UserContext
    );

typedef BOOL
(CALLBACK *PSYM_ENUMSYMBOLS_CALLBACK64)(
    PSTR SymbolName,
    DWORD64 SymbolAddress,
    ULONG SymbolSize,
    PVOID UserContext
    );

typedef BOOL
(CALLBACK *PSYM_ENUMSYMBOLS_CALLBACK64W)(
    PWSTR   SymbolName,
    DWORD64 SymbolAddress,
    ULONG   SymbolSize,
    PVOID   UserContext
    );

typedef BOOL
(CALLBACK *PSYMBOL_REGISTERED_CALLBACK64)(
    HANDLE  hProcess,
    ULONG   ActionCode,
    ULONG64 CallbackData,
    ULONG64 UserContext
    );

typedef
PVOID
(CALLBACK *PSYMBOL_FUNCENTRY_CALLBACK)(
    HANDLE  hProcess,
    DWORD   AddrBase,
    PVOID   UserContext
    );

typedef
PVOID
(CALLBACK *PSYMBOL_FUNCENTRY_CALLBACK64)(
    HANDLE  hProcess,
    ULONG64 AddrBase,
    ULONG64 UserContext
    );

#if !defined(_IMAGEHLP_SOURCE_) && defined(_IMAGEHLP64)

#define PSYM_ENUMMODULES_CALLBACK PSYM_ENUMMODULES_CALLBACK64
#define PSYM_ENUMSYMBOLS_CALLBACK PSYM_ENUMSYMBOLS_CALLBACK64
#define PSYM_ENUMSYMBOLS_CALLBACKW PSYM_ENUMSYMBOLS_CALLBACK64W
#define PENUMLOADED_MODULES_CALLBACK PENUMLOADED_MODULES_CALLBACK64
#define PSYMBOL_REGISTERED_CALLBACK PSYMBOL_REGISTERED_CALLBACK64
#define PSYMBOL_FUNCENTRY_CALLBACK PSYMBOL_FUNCENTRY_CALLBACK64

#else

typedef BOOL
(CALLBACK *PSYM_ENUMMODULES_CALLBACK)(
    PCSTR ModuleName,
    ULONG BaseOfDll,
    PVOID UserContext
    );

typedef BOOL
(CALLBACK *PSYM_ENUMSYMBOLS_CALLBACK)(
    PSTR  SymbolName,
    ULONG SymbolAddress,
    ULONG SymbolSize,
    PVOID UserContext
    );

typedef BOOL
(CALLBACK *PSYM_ENUMSYMBOLS_CALLBACKW)(
    PWSTR SymbolName,
    ULONG SymbolAddress,
    ULONG SymbolSize,
    PVOID UserContext
    );

typedef BOOL
(CALLBACK *PENUMLOADED_MODULES_CALLBACK)(
    PSTR  ModuleName,
    ULONG ModuleBase,
    ULONG ModuleSize,
    PVOID UserContext
    );

typedef BOOL
(CALLBACK *PSYMBOL_REGISTERED_CALLBACK)(
    HANDLE  hProcess,
    ULONG   ActionCode,
    PVOID   CallbackData,
    PVOID   UserContext
    );

#endif


// values found in SYMBOL_INFO.Tag
//
// This was taken from cvconst.h and should
// not override any values found there.
//
// #define _NO_CVCONST_H_ if you don't
// have access to that file...

#ifdef _NO_CVCONST_H

// DIA enums

enum SymTagEnum
{
    SymTagNull,
    SymTagExe,
    SymTagCompiland,
    SymTagCompilandDetails,
    SymTagCompilandEnv,
    SymTagFunction,
    SymTagBlock,
    SymTagData,
    SymTagAnnotation,
    SymTagLabel,
    SymTagPublicSymbol,
    SymTagUDT,
    SymTagEnum,
    SymTagFunctionType,
    SymTagPointerType,
    SymTagArrayType,
    SymTagBaseType,
    SymTagTypedef,
    SymTagBaseClass,
    SymTagFriend,
    SymTagFunctionArgType,
    SymTagFuncDebugStart,
    SymTagFuncDebugEnd,
    SymTagUsingNamespace,
    SymTagVTableShape,
    SymTagVTable,
    SymTagCustom,
    SymTagThunk,
    SymTagCustomType,
    SymTagManagedType,
    SymTagDimension,
    SymTagMax
};

#endif

//
// flags found in SYMBOL_INFO.Flags
//

#define SYMFLAG_VALUEPRESENT     0x00000001
#define SYMFLAG_REGISTER         0x00000008
#define SYMFLAG_REGREL           0x00000010
#define SYMFLAG_FRAMEREL         0x00000020
#define SYMFLAG_PARAMETER        0x00000040
#define SYMFLAG_LOCAL            0x00000080
#define SYMFLAG_CONSTANT         0x00000100
#define SYMFLAG_EXPORT           0x00000200
#define SYMFLAG_FORWARDER        0x00000400
#define SYMFLAG_FUNCTION         0x00000800
#define SYMFLAG_VIRTUAL          0x00001000
#define SYMFLAG_THUNK            0x00002000
#define SYMFLAG_TLSREL           0x00004000
#define SYMFLAG_SLOT             0x00008000
#define SYMFLAG_ILREL            0x00010000
#define SYMFLAG_METADATA         0x00020000
#define SYMFLAG_CLR_TOKEN        0x00040000

//
// symbol type enumeration
//
typedef enum {
    SymNone = 0,
    SymCoff,
    SymCv,
    SymPdb,
    SymExport,
    SymDeferred,
    SymSym,       // .sym file
    SymDia,
    SymVirtual,
    NumSymTypes
} SYM_TYPE;

//
// symbol data structure
//

typedef struct _IMAGEHLP_SYMBOL64 {
    DWORD   SizeOfStruct;           // set to sizeof(IMAGEHLP_SYMBOL64)
    DWORD64 Address;                // virtual address including dll base address
    DWORD   Size;                   // estimated size of symbol, can be zero
    DWORD   Flags;                  // info about the symbols, see the SYMF defines
    DWORD   MaxNameLength;          // maximum size of symbol name in 'Name'
    CHAR    Name[1];                // symbol name (null terminated string)
} IMAGEHLP_SYMBOL64, *PIMAGEHLP_SYMBOL64;

typedef struct _IMAGEHLP_SYMBOL64_PACKAGE {
    IMAGEHLP_SYMBOL64 sym;
    CHAR              name[MAX_SYM_NAME + 1];
} IMAGEHLP_SYMBOL64_PACKAGE, *PIMAGEHLP_SYMBOL64_PACKAGE;

typedef struct _IMAGEHLP_SYMBOLW64 {
    DWORD   SizeOfStruct;           // set to sizeof(IMAGEHLP_SYMBOLW64)
    DWORD64 Address;                // virtual address including dll base address
    DWORD   Size;                   // estimated size of symbol, can be zero
    DWORD   Flags;                  // info about the symbols, see the SYMF defines
    DWORD   MaxNameLength;          // maximum size of symbol name in 'Name'
    WCHAR   Name[1];                // symbol name (null terminated string)
} IMAGEHLP_SYMBOLW64, *PIMAGEHLP_SYMBOLW64;

typedef struct _IMAGEHLP_SYMBOLW64_PACKAGE {
    IMAGEHLP_SYMBOLW64 sym;
    WCHAR              name[MAX_SYM_NAME + 1];
} IMAGEHLP_SYMBOLW64_PACKAGE, *PIMAGEHLP_SYMBOLW64_PACKAGE;

#if !defined(_IMAGEHLP_SOURCE_) && defined(_IMAGEHLP64)

 #define IMAGEHLP_SYMBOL IMAGEHLP_SYMBOL64
 #define PIMAGEHLP_SYMBOL PIMAGEHLP_SYMBOL64
 #define IMAGEHLP_SYMBOL_PACKAGE IMAGEHLP_SYMBOL64_PACKAGE
 #define PIMAGEHLP_SYMBOL_PACKAGE PIMAGEHLP_SYMBOL64_PACKAGE
 #define IMAGEHLP_SYMBOLW IMAGEHLP_SYMBOLW64
 #define PIMAGEHLP_SYMBOLW PIMAGEHLP_SYMBOLW64
 #define IMAGEHLP_SYMBOLW_PACKAGE IMAGEHLP_SYMBOLW64_PACKAGE
 #define PIMAGEHLP_SYMBOLW_PACKAGE PIMAGEHLP_SYMBOLW64_PACKAGE

#else

 typedef struct _IMAGEHLP_SYMBOL {
     DWORD SizeOfStruct;           // set to sizeof(IMAGEHLP_SYMBOL)
     DWORD Address;                // virtual address including dll base address
     DWORD Size;                   // estimated size of symbol, can be zero
     DWORD Flags;                  // info about the symbols, see the SYMF defines
     DWORD                       MaxNameLength;          // maximum size of symbol name in 'Name'
     CHAR                        Name[1];                // symbol name (null terminated string)
 } IMAGEHLP_SYMBOL, *PIMAGEHLP_SYMBOL;

 typedef struct _IMAGEHLP_SYMBOL_PACKAGE {
     IMAGEHLP_SYMBOL sym;
     CHAR            name[MAX_SYM_NAME + 1];
 } IMAGEHLP_SYMBOL_PACKAGE, *PIMAGEHLP_SYMBOL_PACKAGE;

 typedef struct _IMAGEHLP_SYMBOLW {
     DWORD SizeOfStruct;           // set to sizeof(IMAGEHLP_SYMBOLW)
     DWORD Address;                // virtual address including dll base address
     DWORD Size;                   // estimated size of symbol, can be zero
     DWORD Flags;                  // info about the symbols, see the SYMF defines
     DWORD                       MaxNameLength;          // maximum size of symbol name in 'Name'
     WCHAR                       Name[1];                // symbol name (null terminated string)
 } IMAGEHLP_SYMBOLW, *PIMAGEHLP_SYMBOLW;

 typedef struct _IMAGEHLP_SYMBOLW_PACKAGE {
     IMAGEHLP_SYMBOLW sym;
     WCHAR            name[MAX_SYM_NAME + 1];
 } IMAGEHLP_SYMBOLW_PACKAGE, *PIMAGEHLP_SYMBOLW_PACKAGE;

#endif

//
// module data structure
//

typedef struct _IMAGEHLP_MODULE64 {
    DWORD    SizeOfStruct;           // set to sizeof(IMAGEHLP_MODULE64)
    DWORD64  BaseOfImage;            // base load address of module
    DWORD    ImageSize;              // virtual size of the loaded module
    DWORD    TimeDateStamp;          // date/time stamp from pe header
    DWORD    CheckSum;               // checksum from the pe header
    DWORD    NumSyms;                // number of symbols in the symbol table
    SYM_TYPE SymType;                // type of symbols loaded
    CHAR     ModuleName[32];         // module name
    CHAR     ImageName[256];         // image name
    // new elements: 07-Jun-2002
    CHAR     LoadedImageName[256];   // symbol file name
    CHAR     LoadedPdbName[256];     // pdb file name
    DWORD    CVSig;                  // Signature of the CV record in the debug directories
    CHAR         CVData[MAX_PATH * 3];   // Contents of the CV record
    DWORD    PdbSig;                 // Signature of PDB
    GUID     PdbSig70;               // Signature of PDB (VC 7 and up)
    DWORD    PdbAge;                 // DBI age of pdb
    BOOL     PdbUnmatched;           // loaded an unmatched pdb
    BOOL     DbgUnmatched;           // loaded an unmatched dbg
    BOOL     LineNumbers;            // we have line number information
    BOOL     GlobalSymbols;          // we have internal symbol information
    BOOL     TypeInfo;               // we have type information
    // new elements: 17-Dec-2003
    BOOL     SourceIndexed;          // pdb supports source server
    BOOL     Publics;                // contains public symbols
} IMAGEHLP_MODULE64, *PIMAGEHLP_MODULE64;

typedef struct _IMAGEHLP_MODULEW64 {
    DWORD    SizeOfStruct;           // set to sizeof(IMAGEHLP_MODULE64)
    DWORD64  BaseOfImage;            // base load address of module
    DWORD    ImageSize;              // virtual size of the loaded module
    DWORD    TimeDateStamp;          // date/time stamp from pe header
    DWORD    CheckSum;               // checksum from the pe header
    DWORD    NumSyms;                // number of symbols in the symbol table
    SYM_TYPE SymType;                // type of symbols loaded
    WCHAR    ModuleName[32];         // module name
    WCHAR    ImageName[256];         // image name
    // new elements: 07-Jun-2002
    WCHAR    LoadedImageName[256];   // symbol file name
    WCHAR    LoadedPdbName[256];     // pdb file name
    DWORD    CVSig;                  // Signature of the CV record in the debug directories
    WCHAR        CVData[MAX_PATH * 3];   // Contents of the CV record
    DWORD    PdbSig;                 // Signature of PDB
    GUID     PdbSig70;               // Signature of PDB (VC 7 and up)
    DWORD    PdbAge;                 // DBI age of pdb
    BOOL     PdbUnmatched;           // loaded an unmatched pdb
    BOOL     DbgUnmatched;           // loaded an unmatched dbg
    BOOL     LineNumbers;            // we have line number information
    BOOL     GlobalSymbols;          // we have internal symbol information
    BOOL     TypeInfo;               // we have type information
    // new elements: 17-Dec-2003
    BOOL     SourceIndexed;          // pdb supports source server
    BOOL     Publics;                // contains public symbols
} IMAGEHLP_MODULEW64, *PIMAGEHLP_MODULEW64;

#if !defined(_IMAGEHLP_SOURCE_) && defined(_IMAGEHLP64)
#define IMAGEHLP_MODULE IMAGEHLP_MODULE64
#define PIMAGEHLP_MODULE PIMAGEHLP_MODULE64
#define IMAGEHLP_MODULEW IMAGEHLP_MODULEW64
#define PIMAGEHLP_MODULEW PIMAGEHLP_MODULEW64
#else
typedef struct _IMAGEHLP_MODULE {
    DWORD    SizeOfStruct;           // set to sizeof(IMAGEHLP_MODULE)
    DWORD    BaseOfImage;            // base load address of module
    DWORD    ImageSize;              // virtual size of the loaded module
    DWORD    TimeDateStamp;          // date/time stamp from pe header
    DWORD    CheckSum;               // checksum from the pe header
    DWORD    NumSyms;                // number of symbols in the symbol table
    SYM_TYPE SymType;                // type of symbols loaded
    CHAR     ModuleName[32];         // module name
    CHAR     ImageName[256];         // image name
    CHAR     LoadedImageName[256];   // symbol file name
} IMAGEHLP_MODULE, *PIMAGEHLP_MODULE;

typedef struct _IMAGEHLP_MODULEW {
    DWORD    SizeOfStruct;           // set to sizeof(IMAGEHLP_MODULE)
    DWORD    BaseOfImage;            // base load address of module
    DWORD    ImageSize;              // virtual size of the loaded module
    DWORD    TimeDateStamp;          // date/time stamp from pe header
    DWORD    CheckSum;               // checksum from the pe header
    DWORD    NumSyms;                // number of symbols in the symbol table
    SYM_TYPE SymType;                // type of symbols loaded
    WCHAR    ModuleName[32];         // module name
    WCHAR    ImageName[256];         // image name
    WCHAR    LoadedImageName[256];   // symbol file name
} IMAGEHLP_MODULEW, *PIMAGEHLP_MODULEW;
#endif

//
// source file line data structure
//

typedef struct _IMAGEHLP_LINE64 {
    DWORD    SizeOfStruct;           // set to sizeof(IMAGEHLP_LINE64)
    PVOID    Key;                    // internal
    DWORD    LineNumber;             // line number in file
    PCHAR    FileName;               // full filename
    DWORD64  Address;                // first instruction of line
} IMAGEHLP_LINE64, *PIMAGEHLP_LINE64;

typedef struct _IMAGEHLP_LINEW64 {
    DWORD    SizeOfStruct;           // set to sizeof(IMAGEHLP_LINE64)
    PVOID    Key;                    // internal
    DWORD    LineNumber;             // line number in file
    PWSTR    FileName;               // full filename
    DWORD64  Address;                // first instruction of line
} IMAGEHLP_LINEW64, *PIMAGEHLP_LINEW64;

#if !defined(_IMAGEHLP_SOURCE_) && defined(_IMAGEHLP64)
#define IMAGEHLP_LINE IMAGEHLP_LINE64
#define PIMAGEHLP_LINE PIMAGEHLP_LINE64
#else
typedef struct _IMAGEHLP_LINE {
    DWORD    SizeOfStruct;           // set to sizeof(IMAGEHLP_LINE)
    PVOID    Key;                    // internal
    DWORD    LineNumber;             // line number in file
    PCHAR    FileName;               // full filename
    DWORD    Address;                // first instruction of line
} IMAGEHLP_LINE, *PIMAGEHLP_LINE;

typedef struct _IMAGEHLP_LINEW {
    DWORD    SizeOfStruct;           // set to sizeof(IMAGEHLP_LINE64)
    PVOID    Key;                    // internal
    DWORD    LineNumber;             // line number in file
    PCHAR    FileName;               // full filename
    DWORD64  Address;                // first instruction of line
} IMAGEHLP_LINEW, *PIMAGEHLP_LINEW;
#endif

//
// source file structure
//

typedef struct _SOURCEFILE {
    DWORD64  ModBase;                // base address of loaded module
    PCHAR    FileName;               // full filename of source
} SOURCEFILE, *PSOURCEFILE;

typedef struct _SOURCEFILEW {
    DWORD64  ModBase;                // base address of loaded module
    PWSTR    FileName;               // full filename of source
} SOURCEFILEW, *PSOURCEFILEW;

//
// data structures used for registered symbol callbacks
//

#define CBA_DEFERRED_SYMBOL_LOAD_START          0x00000001
#define CBA_DEFERRED_SYMBOL_LOAD_COMPLETE       0x00000002
#define CBA_DEFERRED_SYMBOL_LOAD_FAILURE        0x00000003
#define CBA_SYMBOLS_UNLOADED                    0x00000004
#define CBA_DUPLICATE_SYMBOL                    0x00000005
#define CBA_READ_MEMORY                         0x00000006
#define CBA_DEFERRED_SYMBOL_LOAD_CANCEL         0x00000007
#define CBA_SET_OPTIONS                         0x00000008
#define CBA_EVENT                               0x00000010
#define CBA_DEFERRED_SYMBOL_LOAD_PARTIAL        0x00000020
#define CBA_DEBUG_INFO                          0x10000000

typedef struct _IMAGEHLP_CBA_READ_MEMORY {
    DWORD64   addr;                                     // address to read from
    PVOID     buf;                                      // buffer to read to
    DWORD     bytes;                                    // amount of bytes to read
    DWORD    *bytesread;                                // pointer to store amount of bytes read
} IMAGEHLP_CBA_READ_MEMORY, *PIMAGEHLP_CBA_READ_MEMORY;

enum {
    sevInfo = 0,
    sevProblem,
    sevAttn,
    sevFatal,
    sevMax  // unused
};

#define EVENT_SRCSPEW_START 100
#define EVENT_SRCSPEW       100
#define EVENT_SRCSPEW_END   199

typedef struct _IMAGEHLP_CBA_EVENT {
    DWORD severity;                                     // values from sevInfo to sevFatal
    DWORD code;                                         // numerical code IDs the error
    PCHAR desc;                                         // may contain a text description of the error
    PVOID object;                                       // value dependant upon the error code
} IMAGEHLP_CBA_EVENT, *PIMAGEHLP_CBA_EVENT;

typedef struct _IMAGEHLP_CBA_EVENTW {
    DWORD  severity;                                     // values from sevInfo to sevFatal
    DWORD  code;                                         // numerical code IDs the error
    PCWSTR desc;                                         // may contain a text description of the error
    PVOID  object;                                       // value dependant upon the error code
} IMAGEHLP_CBA_EVENTW, *PIMAGEHLP_CBA_EVENTW;

typedef struct _IMAGEHLP_DEFERRED_SYMBOL_LOAD64 {
    DWORD    SizeOfStruct;           // set to sizeof(IMAGEHLP_DEFERRED_SYMBOL_LOAD64)
    DWORD64  BaseOfImage;            // base load address of module
    DWORD    CheckSum;               // checksum from the pe header
    DWORD    TimeDateStamp;          // date/time stamp from pe header
    CHAR     FileName[MAX_PATH];     // symbols file or image name
    BOOLEAN  Reparse;                // load failure reparse
    HANDLE   hFile;                  // file handle, if passed
    DWORD    Flags;                     //
} IMAGEHLP_DEFERRED_SYMBOL_LOAD64, *PIMAGEHLP_DEFERRED_SYMBOL_LOAD64;

typedef struct _IMAGEHLP_DEFERRED_SYMBOL_LOADW64 {
    DWORD    SizeOfStruct;           // set to sizeof(IMAGEHLP_DEFERRED_SYMBOL_LOADW64)
    DWORD64  BaseOfImage;            // base load address of module
    DWORD    CheckSum;               // checksum from the pe header
    DWORD    TimeDateStamp;          // date/time stamp from pe header
    WCHAR    FileName[MAX_PATH + 1]; // symbols file or image name
    BOOLEAN  Reparse;                // load failure reparse
    HANDLE   hFile;                  // file handle, if passed
    DWORD    Flags;         //
} IMAGEHLP_DEFERRED_SYMBOL_LOADW64, *PIMAGEHLP_DEFERRED_SYMBOL_LOADW64;

#define DSLFLAG_MISMATCHED_PDB  0x1
#define DSLFLAG_MISMATCHED_DBG  0x2

#if !defined(_IMAGEHLP_SOURCE_) && defined(_IMAGEHLP64)
#define IMAGEHLP_DEFERRED_SYMBOL_LOAD IMAGEHLP_DEFERRED_SYMBOL_LOAD64
#define PIMAGEHLP_DEFERRED_SYMBOL_LOAD PIMAGEHLP_DEFERRED_SYMBOL_LOAD64
#else
typedef struct _IMAGEHLP_DEFERRED_SYMBOL_LOAD {
    DWORD    SizeOfStruct;           // set to sizeof(IMAGEHLP_DEFERRED_SYMBOL_LOAD)
    DWORD    BaseOfImage;            // base load address of module
    DWORD    CheckSum;               // checksum from the pe header
    DWORD    TimeDateStamp;          // date/time stamp from pe header
    CHAR     FileName[MAX_PATH];     // symbols file or image name
    BOOLEAN  Reparse;                // load failure reparse
    HANDLE   hFile;                  // file handle, if passed
} IMAGEHLP_DEFERRED_SYMBOL_LOAD, *PIMAGEHLP_DEFERRED_SYMBOL_LOAD;
#endif

typedef struct _IMAGEHLP_DUPLICATE_SYMBOL64 {
    DWORD              SizeOfStruct;           // set to sizeof(IMAGEHLP_DUPLICATE_SYMBOL64)
    DWORD              NumberOfDups;           // number of duplicates in the Symbol array
    PIMAGEHLP_SYMBOL64 Symbol;                 // array of duplicate symbols
    DWORD              SelectedSymbol;         // symbol selected (-1 to start)
} IMAGEHLP_DUPLICATE_SYMBOL64, *PIMAGEHLP_DUPLICATE_SYMBOL64;

#if !defined(_IMAGEHLP_SOURCE_) && defined(_IMAGEHLP64)
#define IMAGEHLP_DUPLICATE_SYMBOL IMAGEHLP_DUPLICATE_SYMBOL64
#define PIMAGEHLP_DUPLICATE_SYMBOL PIMAGEHLP_DUPLICATE_SYMBOL64
#else
typedef struct _IMAGEHLP_DUPLICATE_SYMBOL {
    DWORD            SizeOfStruct;           // set to sizeof(IMAGEHLP_DUPLICATE_SYMBOL)
    DWORD            NumberOfDups;           // number of duplicates in the Symbol array
    PIMAGEHLP_SYMBOL Symbol;                 // array of duplicate symbols
    DWORD            SelectedSymbol;         // symbol selected (-1 to start)
} IMAGEHLP_DUPLICATE_SYMBOL, *PIMAGEHLP_DUPLICATE_SYMBOL;
#endif

// If dbghelp ever needs to display graphical UI, it will use this as the parent window.

BOOL
IMAGEAPI
SymSetParentWindow(
    HWND hwnd
    );

PCHAR
IMAGEAPI
SymSetHomeDirectory(
    HANDLE hProcess,
    PCSTR  dir
    );

PWSTR
IMAGEAPI
SymSetHomeDirectoryW(
    HANDLE hProcess,
    PCWSTR dir
    );

PCHAR
IMAGEAPI
SymGetHomeDirectory(
    DWORD  type,
    PSTR   dir,
    size_t size
    );

PWSTR
IMAGEAPI
SymGetHomeDirectoryW(
    DWORD  type,
    PWSTR  dir,
    size_t size
    );

typedef enum {
    hdBase = 0, // root directory for dbghelp
    hdSym,      // where symbols are stored
    hdSrc,      // where source is stored
    hdMax       // end marker
};

//
// options that are set/returned by SymSetOptions() & SymGetOptions()
// these are used as a mask
//
#define SYMOPT_CASE_INSENSITIVE         0x00000001
#define SYMOPT_UNDNAME                  0x00000002
#define SYMOPT_DEFERRED_LOADS           0x00000004
#define SYMOPT_NO_CPP                   0x00000008
#define SYMOPT_LOAD_LINES               0x00000010
#define SYMOPT_OMAP_FIND_NEAREST        0x00000020
#define SYMOPT_LOAD_ANYTHING            0x00000040
#define SYMOPT_IGNORE_CVREC             0x00000080
#define SYMOPT_NO_UNQUALIFIED_LOADS     0x00000100
#define SYMOPT_FAIL_CRITICAL_ERRORS     0x00000200
#define SYMOPT_EXACT_SYMBOLS            0x00000400
#define SYMOPT_ALLOW_ABSOLUTE_SYMBOLS   0x00000800
#define SYMOPT_IGNORE_NT_SYMPATH        0x00001000
#define SYMOPT_INCLUDE_32BIT_MODULES    0x00002000
#define SYMOPT_PUBLICS_ONLY             0x00004000
#define SYMOPT_NO_PUBLICS               0x00008000
#define SYMOPT_AUTO_PUBLICS             0x00010000
#define SYMOPT_NO_IMAGE_SEARCH          0x00020000
#define SYMOPT_SECURE                   0x00040000
#define SYMOPT_NO_PROMPTS               0x00080000
#define SYMOPT_OVERWRITE                0x00100000
#define SYMOPT_IGNORE_IMAGEDIR          0x00200000
#define SYMOPT_FLAT_DIRECTORY           0x00400000

#define SYMOPT_DEBUG                    0x80000000

DWORD
IMAGEAPI
SymSetOptions(
    IN DWORD   SymOptions
    );

DWORD
IMAGEAPI
SymGetOptions(
    VOID
    );

BOOL
IMAGEAPI
SymCleanup(
    IN HANDLE hProcess
    );

BOOL
IMAGEAPI
SymMatchString(
    IN PCSTR string,
    IN PCSTR expression,
    IN BOOL  fCase
    );

BOOL
IMAGEAPI
SymMatchStringW(
    IN PCWSTR string,
    IN PCWSTR expression,
    IN BOOL   fCase
    );

typedef BOOL
(CALLBACK *PSYM_ENUMSOURCEFILES_CALLBACK)(
    PSOURCEFILE pSourceFile,
    PVOID       UserContext
    );

// for backwards compatibility - don't use this
#define PSYM_ENUMSOURCFILES_CALLBACK PSYM_ENUMSOURCEFILES_CALLBACK

BOOL
IMAGEAPI
SymEnumSourceFiles(
    IN HANDLE  hProcess,
    IN ULONG64 ModBase,
    IN PCSTR   Mask,
    IN PSYM_ENUMSOURCEFILES_CALLBACK cbSrcFiles,
    IN PVOID   UserContext
    );

typedef BOOL
(CALLBACK *PSYM_ENUMSOURCEFILES_CALLBACKW)(
    PSOURCEFILEW pSourceFile,
    PVOID        UserContext
    );

BOOL
IMAGEAPI
SymEnumSourceFilesW(
    IN HANDLE  hProcess,
    IN ULONG64 ModBase,
    IN PCWSTR  Mask,
    IN PSYM_ENUMSOURCEFILES_CALLBACKW cbSrcFiles,
    IN PVOID   UserContext
    );

BOOL
IMAGEAPI
SymEnumerateModules64(
    IN HANDLE                       hProcess,
    IN PSYM_ENUMMODULES_CALLBACK64  EnumModulesCallback,
    IN PVOID                        UserContext
    );

BOOL
IMAGEAPI
SymEnumerateModulesW64(
    IN HANDLE                       hProcess,
    IN PSYM_ENUMMODULES_CALLBACKW64 EnumModulesCallback,
    IN PVOID                        UserContext
    );

#if !defined(_IMAGEHLP_SOURCE_) && defined(_IMAGEHLP64)
#define SymEnumerateModules SymEnumerateModules64
#else
BOOL
IMAGEAPI
SymEnumerateModules(
    IN HANDLE                     hProcess,
    IN PSYM_ENUMMODULES_CALLBACK  EnumModulesCallback,
    IN PVOID                      UserContext
    );
#endif

BOOL
IMAGEAPI
EnumerateLoadedModules64(
    IN HANDLE                           hProcess,
    IN PENUMLOADED_MODULES_CALLBACK64   EnumLoadedModulesCallback,
    IN PVOID                            UserContext
    );

#if !defined(_IMAGEHLP_SOURCE_) && defined(_IMAGEHLP64)
#define EnumerateLoadedModules EnumerateLoadedModules64
#else
BOOL
IMAGEAPI
EnumerateLoadedModules(
    IN HANDLE                         hProcess,
    IN PENUMLOADED_MODULES_CALLBACK   EnumLoadedModulesCallback,
    IN PVOID                          UserContext
    );
#endif

PVOID
IMAGEAPI
SymFunctionTableAccess64(
    HANDLE  hProcess,
    DWORD64 AddrBase
    );

#if !defined(_IMAGEHLP_SOURCE_) && defined(_IMAGEHLP64)
#define SymFunctionTableAccess SymFunctionTableAccess64
#else
PVOID
IMAGEAPI
SymFunctionTableAccess(
    HANDLE  hProcess,
    DWORD   AddrBase
    );
#endif

BOOL
IMAGEAPI
SymGetModuleInfo64(
    IN  HANDLE                  hProcess,
    IN  DWORD64                 qwAddr,
    OUT PIMAGEHLP_MODULE64      ModuleInfo
    );

BOOL
IMAGEAPI
SymGetModuleInfoW64(
    IN  HANDLE                  hProcess,
    IN  DWORD64                 qwAddr,
    OUT PIMAGEHLP_MODULEW64     ModuleInfo
    );

#if !defined(_IMAGEHLP_SOURCE_) && defined(_IMAGEHLP64)
#define SymGetModuleInfo   SymGetModuleInfo64
#define SymGetModuleInfoW  SymGetModuleInfoW64
#else
BOOL
IMAGEAPI
SymGetModuleInfo(
    IN  HANDLE              hProcess,
    IN  DWORD               dwAddr,
    OUT PIMAGEHLP_MODULE  ModuleInfo
    );

BOOL
IMAGEAPI
SymGetModuleInfoW(
    IN  HANDLE              hProcess,
    IN  DWORD               dwAddr,
    OUT PIMAGEHLP_MODULEW  ModuleInfo
    );
#endif

DWORD64
IMAGEAPI
SymGetModuleBase64(
    IN  HANDLE              hProcess,
    IN  DWORD64             qwAddr
    );

#if !defined(_IMAGEHLP_SOURCE_) && defined(_IMAGEHLP64)
#define SymGetModuleBase SymGetModuleBase64
#else
DWORD
IMAGEAPI
SymGetModuleBase(
    IN  HANDLE              hProcess,
    IN  DWORD               dwAddr
    );
#endif

typedef struct _SRCCODEINFO {
    DWORD   SizeOfStruct;           // set to sizeof(SRCCODEINFO)
    PVOID   Key;                    // not used
    DWORD64 ModBase;                // base address of module this applies to
    CHAR    Obj[MAX_PATH + 1];      // the object file within the module
    CHAR    FileName[MAX_PATH + 1]; // full filename
    DWORD   LineNumber;             // line number in file
    DWORD64 Address;                // first instruction of line
} SRCCODEINFO, *PSRCCODEINFO;

typedef struct _SRCCODEINFOW {
    DWORD   SizeOfStruct;           // set to sizeof(SRCCODEINFO)
    PVOID   Key;                    // not used
    DWORD64 ModBase;                // base address of module this applies to
    WCHAR   Obj[MAX_PATH + 1];      // the object file within the module
    WCHAR   FileName[MAX_PATH + 1]; // full filename
    DWORD   LineNumber;             // line number in file
    DWORD64 Address;                // first instruction of line
} SRCCODEINFOW, *PSRCCODEINFOW;

typedef BOOL
(CALLBACK *PSYM_ENUMLINES_CALLBACK)(
    PSRCCODEINFO LineInfo,
    PVOID        UserContext
    );

BOOL
IMAGEAPI
SymEnumLines(
    IN  HANDLE  hProcess,
    IN  ULONG64 Base,
    IN  PCSTR   Obj,
    IN  PCSTR   File,
    IN  PSYM_ENUMLINES_CALLBACK EnumLinesCallback,
    IN  PVOID   UserContext
    );

typedef BOOL
(CALLBACK *PSYM_ENUMLINES_CALLBACKW)(
    PSRCCODEINFOW LineInfo,
    PVOID         UserContext
    );

BOOL
IMAGEAPI
SymEnumLinesW(
    IN  HANDLE  hProcess,
    IN  ULONG64 Base,
    IN  PCWSTR  Obj,
    IN  PCWSTR  File,
    IN  PSYM_ENUMLINES_CALLBACKW EnumLinesCallback,
    IN  PVOID   UserContext
    );

BOOL
IMAGEAPI
SymGetLineFromAddr64(
    IN  HANDLE                  hProcess,
    IN  DWORD64                 qwAddr,
    OUT PDWORD                  pdwDisplacement,
    OUT PIMAGEHLP_LINE64        Line64
    );

BOOL
IMAGEAPI
SymGetLineFromAddrW64(
    IN  HANDLE                  hProcess,
    IN  DWORD64                 qwAddr,
    OUT PDWORD                  pdwDisplacement,
    OUT PIMAGEHLP_LINEW64       Line64
    );

#if !defined(_IMAGEHLP_SOURCE_) && defined(_IMAGEHLP64)
#define SymGetLineFromAddr SymGetLineFromAddr64
#define SymGetLineFromAddrW SymGetLineFromAddrW64
#else
BOOL
IMAGEAPI
SymGetLineFromAddr(
    IN  HANDLE                hProcess,
    IN  DWORD                 dwAddr,
    OUT PDWORD                pdwDisplacement,
    OUT PIMAGEHLP_LINE        Line
    );

BOOL
IMAGEAPI
SymGetLineFromAddrW(
    IN  HANDLE                hProcess,
    IN  DWORD                 dwAddr,
    OUT PDWORD                pdwDisplacement,
    OUT PIMAGEHLP_LINEW       Line
    );
#endif

BOOL
IMAGEAPI
SymGetLineFromName64(
    IN     HANDLE               hProcess,
    IN     PCSTR                ModuleName,
    IN     PCSTR                FileName,
    IN     DWORD                dwLineNumber,
       OUT PLONG                plDisplacement,
    IN OUT PIMAGEHLP_LINE64     Line
    );

BOOL
IMAGEAPI
SymGetLineFromNameW64(
    IN     HANDLE               hProcess,
    IN     PCWSTR               ModuleName,
    IN     PCWSTR               FileName,
    IN     DWORD                dwLineNumber,
       OUT PLONG                plDisplacement,
    IN OUT PIMAGEHLP_LINEW64    Line
    );

#if !defined(_IMAGEHLP_SOURCE_) && defined(_IMAGEHLP64)
#define SymGetLineFromName SymGetLineFromName64
#else
BOOL
IMAGEAPI
SymGetLineFromName(
    IN     HANDLE             hProcess,
    IN     PCSTR              ModuleName,
    IN     PCSTR              FileName,
    IN     DWORD              dwLineNumber,
       OUT PLONG              plDisplacement,
    IN OUT PIMAGEHLP_LINE     Line
    );
#endif

BOOL
IMAGEAPI
SymGetLineNext64(
    IN     HANDLE               hProcess,
    IN OUT PIMAGEHLP_LINE64     Line
    );

BOOL
IMAGEAPI
SymGetLineNextW64(
    IN     HANDLE               hProcess,
    IN OUT PIMAGEHLP_LINEW64    Line
    );

#if !defined(_IMAGEHLP_SOURCE_) && defined(_IMAGEHLP64)
#define SymGetLineNext SymGetLineNext64
#else
BOOL
IMAGEAPI
SymGetLineNext(
    IN     HANDLE             hProcess,
    IN OUT PIMAGEHLP_LINE     Line
    );

BOOL
IMAGEAPI
SymGetLineNextW(
    IN     HANDLE             hProcess,
    IN OUT PIMAGEHLP_LINEW    Line
    );
#endif

BOOL
IMAGEAPI
SymGetLinePrev64(
    IN     HANDLE               hProcess,
    IN OUT PIMAGEHLP_LINE64     Line
    );

BOOL
IMAGEAPI
SymGetLinePrevW64(
    IN     HANDLE               hProcess,
    IN OUT PIMAGEHLP_LINEW64    Line
    );

#if !defined(_IMAGEHLP_SOURCE_) && defined(_IMAGEHLP64)
#define SymGetLinePrev SymGetLinePrev64
#else
BOOL
IMAGEAPI
SymGetLinePrev(
    IN     HANDLE             hProcess,
    IN OUT PIMAGEHLP_LINE     Line
    );

BOOL
IMAGEAPI
SymGetLinePrevW(
    IN     HANDLE             hProcess,
    IN OUT PIMAGEHLP_LINEW    Line
    );
#endif

ULONG
IMAGEAPI
SymGetFileLineOffsets64(
    IN  HANDLE                  hProcess,
    IN  LPSTR                   ModuleName,
    IN  LPSTR                   FileName,
    OUT PDWORD64                Buffer,
    IN  ULONG                   BufferLines
    );

ULONG
IMAGEAPI
SymGetFileLineOffsetsW64(
    IN  HANDLE                  hProcess,
    IN  PWSTR                   ModuleName,
    IN  PWSTR                   FileName,
    OUT PDWORD64                Buffer,
    IN  ULONG                   BufferLines
    );

BOOL
IMAGEAPI
SymMatchFileName(
    IN  PSTR   FileName,
    IN  PSTR   Match,
    OUT PSTR  *FileNameStop,
    OUT PSTR  *MatchStop
    );

BOOL
IMAGEAPI
SymMatchFileNameW(
    IN  PWSTR   FileName,
    IN  PWSTR   Match,
    OUT PWSTR  *FileNameStop,
    OUT PWSTR  *MatchStop
    );

BOOL
IMAGEAPI
SymGetSourceFile(
    IN  HANDLE  hProcess,
    IN  ULONG64 Base,
    IN  PCSTR   Params,
    IN  PCSTR   FileSpec,
    OUT PSTR    FilePath,
    IN  DWORD   Size
    );

BOOL
IMAGEAPI
SymGetSourceFileToken(
    IN  HANDLE  hProcess,
    IN  ULONG64 Base,
    IN  PCSTR   FileSpec,
    OUT PVOID  *Token,
    OUT DWORD  *Size
    );

BOOL
IMAGEAPI
SymGetSourceFileTokenW(
    IN  HANDLE   hProcess,
    IN  ULONG64  Base,
    IN  PCWSTR   FileSpec,
    OUT PVOID   *Token,
    OUT DWORD   *Size
    );

BOOL
IMAGEAPI
SymGetSourceFileFromToken(
    IN  HANDLE  hProcess,
    IN  PVOID   Token,
    IN  PCSTR   Params,
    OUT PSTR    FilePath,
    IN  DWORD   Size
    );

BOOL
IMAGEAPI
SymGetSourceFileFromTokenW(
    IN  HANDLE  hProcess,
    IN  PVOID   Token,
    IN  PCWSTR  Params,
    OUT PWSTR   FilePath,
    IN  DWORD   Size
    );

BOOL
IMAGEAPI
SymGetSourceVarFromToken(
    IN  HANDLE  hProcess,
    IN  PVOID   Token,
    IN  PCSTR   Params,
    IN  PCSTR   VarName,
    OUT PSTR    Value,
    IN  DWORD   Size
    );

BOOL
IMAGEAPI
SymGetSourceVarFromTokenW(
    IN  HANDLE  hProcess,
    IN  PVOID   Token,
    IN  PCWSTR  Params,
    IN  PCWSTR  VarName,
    OUT PWSTR   Value,
    IN  DWORD   Size
    );

BOOL
IMAGEAPI
SymInitialize(
    IN HANDLE   hProcess,
    IN PCSTR    UserSearchPath,
    IN BOOL     fInvadeProcess
    );

BOOL
IMAGEAPI
SymInitializeW(
    IN HANDLE   hProcess,
    IN PCWSTR   UserSearchPath,
    IN BOOL     fInvadeProcess
    );

BOOL
IMAGEAPI
SymGetSearchPath(
    IN  HANDLE          hProcess,
    OUT PSTR            SearchPath,
    IN  DWORD           SearchPathLength
    );

BOOL
IMAGEAPI
SymGetSearchPathW(
    IN  HANDLE          hProcess,
    OUT PWSTR           SearchPath,
    IN  DWORD           SearchPathLength
    );

BOOL
IMAGEAPI
SymSetSearchPath(
    IN HANDLE           hProcess,
    IN PCSTR            SearchPath
    );

BOOL
IMAGEAPI
SymSetSearchPathW(
    IN HANDLE           hProcess,
    IN PCWSTR           SearchPath
    );

DWORD64
IMAGEAPI
SymLoadModule64(
    IN  HANDLE          hProcess,
    IN  HANDLE          hFile,
    IN  PCSTR           ImageName,
    IN  PCSTR           ModuleName,
    IN  DWORD64         BaseOfDll,
    IN  DWORD           SizeOfDll
    );

#define SLMFLAG_VIRTUAL     0x1
#define SLMFLAG_ALT_INDEX   0x2
//#define SLMFLAG_NO_PDB      0x4
#define SLMFLAG_NO_SYMBOLS  0x4

DWORD64
IMAGEAPI
SymLoadModuleEx(
    IN  HANDLE         hProcess,
    IN  HANDLE         hFile,
    IN  PCSTR          ImageName,
    IN  PCSTR          ModuleName,
    IN  DWORD64        BaseOfDll,
    IN  DWORD          DllSize,
    IN  PMODLOAD_DATA  Data,
    IN  DWORD          Flags
    );

DWORD64
IMAGEAPI
SymLoadModuleExW(
    IN  HANDLE         hProcess,
    IN  HANDLE         hFile,
    IN  PCWSTR         ImageName,
    IN  PCWSTR         ModuleName,
    IN  DWORD64        BaseOfDll,
    IN  DWORD          DllSize,
    IN  PMODLOAD_DATA  Data,
    IN  DWORD          Flags
    );

#if !defined(_IMAGEHLP_SOURCE_) && defined(_IMAGEHLP64)
#define SymLoadModule SymLoadModule64
#else
DWORD
IMAGEAPI
SymLoadModule(
    IN  HANDLE          hProcess,
    IN  HANDLE          hFile,
    IN  PCSTR           ImageName,
    IN  PCSTR           ModuleName,
    IN  DWORD           BaseOfDll,
    IN  DWORD           SizeOfDll
    );
#endif

BOOL
IMAGEAPI
SymUnloadModule64(
    IN  HANDLE          hProcess,
    IN  DWORD64         BaseOfDll
    );

#if !defined(_IMAGEHLP_SOURCE_) && defined(_IMAGEHLP64)
#define SymUnloadModule SymUnloadModule64
#else
BOOL
IMAGEAPI
SymUnloadModule(
    IN  HANDLE          hProcess,
    IN  DWORD           BaseOfDll
    );
#endif

BOOL
IMAGEAPI
SymUnDName64(
    IN  PIMAGEHLP_SYMBOL64 sym,               // Symbol to undecorate
    OUT PSTR               UnDecName,         // Buffer to store undecorated name in
    IN  DWORD              UnDecNameLength    // Size of the buffer
    );

#if !defined(_IMAGEHLP_SOURCE_) && defined(_IMAGEHLP64)
#define SymUnDName SymUnDName64
#else
BOOL
IMAGEAPI
SymUnDName(
    IN  PIMAGEHLP_SYMBOL sym,               // Symbol to undecorate
    OUT PSTR             UnDecName,         // Buffer to store undecorated name in
    IN  DWORD            UnDecNameLength    // Size of the buffer
    );
#endif

BOOL
IMAGEAPI
SymRegisterCallback64(
    IN HANDLE                        hProcess,
    IN PSYMBOL_REGISTERED_CALLBACK64 CallbackFunction,
    IN ULONG64                       UserContext
    );

BOOL
IMAGEAPI
SymRegisterCallbackW64(
    IN HANDLE                        hProcess,
    IN PSYMBOL_REGISTERED_CALLBACK64 CallbackFunction,
    IN ULONG64                       UserContext
    );

BOOL
IMAGEAPI
SymRegisterFunctionEntryCallback64(
    IN HANDLE                       hProcess,
    IN PSYMBOL_FUNCENTRY_CALLBACK64 CallbackFunction,
    IN ULONG64                      UserContext
    );

#if !defined(_IMAGEHLP_SOURCE_) && defined(_IMAGEHLP64)
#define SymRegisterCallback SymRegisterCallback64
#define SymRegisterFunctionEntryCallback SymRegisterFunctionEntryCallback64
#else
BOOL
IMAGEAPI
SymRegisterCallback(
    IN HANDLE                      hProcess,
    IN PSYMBOL_REGISTERED_CALLBACK CallbackFunction,
    IN PVOID                       UserContext
    );

BOOL
IMAGEAPI
SymRegisterFunctionEntryCallback(
    IN HANDLE                     hProcess,
    IN PSYMBOL_FUNCENTRY_CALLBACK CallbackFunction,
    IN PVOID                      UserContext
    );
#endif


typedef struct _IMAGEHLP_SYMBOL_SRC {
    DWORD sizeofstruct;
    DWORD type;
    char  file[MAX_PATH];
} IMAGEHLP_SYMBOL_SRC, *PIMAGEHLP_SYMBOL_SRC;

typedef struct _MODULE_TYPE_INFO { // AKA TYPTYP
    USHORT      dataLength;
    USHORT      leaf;
    BYTE        data[1];
} MODULE_TYPE_INFO, *PMODULE_TYPE_INFO;

typedef struct _SYMBOL_INFO {
    ULONG       SizeOfStruct;
    ULONG       TypeIndex;        // Type Index of symbol
    ULONG64     Reserved[2];
    ULONG       Index;
    ULONG       Size;
    ULONG64     ModBase;          // Base Address of module comtaining this symbol
    ULONG       Flags;
    ULONG64     Value;            // Value of symbol, ValuePresent should be 1
    ULONG64     Address;          // Address of symbol including base address of module
    ULONG       Register;         // register holding value or pointer to value
    ULONG       Scope;            // scope of the symbol
    ULONG       Tag;              // pdb classification
    ULONG       NameLen;          // Actual length of name
    ULONG       MaxNameLen;
    CHAR        Name[1];          // Name of symbol
} SYMBOL_INFO, *PSYMBOL_INFO;

typedef struct _SYMBOL_INFO_PACKAGE {
    SYMBOL_INFO si;
    CHAR        name[MAX_SYM_NAME + 1];
} SYMBOL_INFO_PACKAGE, *PSYMBOL_INFO_PACKAGE;

typedef struct _SYMBOL_INFOW {
    ULONG       SizeOfStruct;
    ULONG       TypeIndex;        // Type Index of symbol
    ULONG64     Reserved[2];
    ULONG       Index;
    ULONG       Size;
    ULONG64     ModBase;          // Base Address of module comtaining this symbol
    ULONG       Flags;
    ULONG64     Value;            // Value of symbol, ValuePresent should be 1
    ULONG64     Address;          // Address of symbol including base address of module
    ULONG       Register;         // register holding value or pointer to value
    ULONG       Scope;            // scope of the symbol
    ULONG       Tag;              // pdb classification
    ULONG       NameLen;          // Actual length of name
    ULONG       MaxNameLen;
    WCHAR       Name[1];          // Name of symbol
} SYMBOL_INFOW, *PSYMBOL_INFOW;

typedef struct _SYMBOL_INFO_PACKAGEW {
    SYMBOL_INFOW si;
    WCHAR        name[MAX_SYM_NAME + 1];
} SYMBOL_INFO_PACKAGEW, *PSYMBOL_INFO_PACKAGEW;

typedef struct _IMAGEHLP_STACK_FRAME
{
    ULONG64 InstructionOffset;
    ULONG64 ReturnOffset;
    ULONG64 FrameOffset;
    ULONG64 StackOffset;
    ULONG64 BackingStoreOffset;
    ULONG64 FuncTableEntry;
    ULONG64 Params[4];
    ULONG64 Reserved[5];
    BOOL    Virtual;
    ULONG   Reserved2;
} IMAGEHLP_STACK_FRAME, *PIMAGEHLP_STACK_FRAME;

typedef VOID IMAGEHLP_CONTEXT, *PIMAGEHLP_CONTEXT;


BOOL
IMAGEAPI
SymSetContext(
    HANDLE hProcess,
    PIMAGEHLP_STACK_FRAME StackFrame,
    PIMAGEHLP_CONTEXT Context
    );

BOOL
IMAGEAPI
SymFromAddr(
    IN  HANDLE              hProcess,
    IN  DWORD64             Address,
    OUT PDWORD64            Displacement,
    IN OUT PSYMBOL_INFO     Symbol
    );

BOOL
IMAGEAPI
SymFromAddrW(
    IN  HANDLE              hProcess,
    IN  DWORD64             Address,
    OUT PDWORD64            Displacement,
    IN OUT PSYMBOL_INFOW    Symbol
    );

BOOL
IMAGEAPI
SymFromToken(
    IN  HANDLE              hProcess,
    IN  DWORD64             Base,
    IN  DWORD               Token,
    IN OUT PSYMBOL_INFO     Symbol
    );

BOOL
IMAGEAPI
SymFromTokenW(
    IN  HANDLE              hProcess,
    IN  DWORD64             Base,
    IN  DWORD               Token,
    IN OUT PSYMBOL_INFOW    Symbol
    );

BOOL
IMAGEAPI
SymNext(
    HANDLE       hProcess,
    PSYMBOL_INFO si
    );

BOOL
IMAGEAPI
SymNextW(
    HANDLE        hProcess,
    PSYMBOL_INFOW siw
    );

BOOL
IMAGEAPI
SymPrev(
    HANDLE       hProcess,
    PSYMBOL_INFO si
    );

BOOL
IMAGEAPI
SymPrevW(
    HANDLE        hProcess,
    PSYMBOL_INFOW siw
    );

// While SymFromName will provide a symbol from a name,
// SymEnumSymbols can provide the same matching information
// for ALL symbols with a matching name, even regular
// expressions.  That way you can search across modules
// and differentiate between identically named symbols.

BOOL
IMAGEAPI
SymFromName(
    IN  HANDLE              hProcess,
    IN  PCSTR               Name,
    OUT PSYMBOL_INFO        Symbol
    );

BOOL
IMAGEAPI
SymFromNameW(
    IN  HANDLE              hProcess,
    IN  PCWSTR              Name,
    OUT PSYMBOL_INFOW       Symbol
    );

typedef BOOL
(CALLBACK *PSYM_ENUMERATESYMBOLS_CALLBACK)(
    PSYMBOL_INFO  pSymInfo,
    ULONG         SymbolSize,
    PVOID         UserContext
    );

BOOL
IMAGEAPI
SymEnumSymbols(
    IN HANDLE                       hProcess,
    IN ULONG64                      BaseOfDll,
    IN PCSTR                        Mask,
    IN PSYM_ENUMERATESYMBOLS_CALLBACK    EnumSymbolsCallback,
    IN PVOID                        UserContext
    );

typedef BOOL
(CALLBACK *PSYM_ENUMERATESYMBOLS_CALLBACKW)(
    PSYMBOL_INFOW pSymInfo,
    ULONG         SymbolSize,
    PVOID         UserContext
    );

BOOL
IMAGEAPI
SymEnumSymbolsW(
    IN HANDLE                       hProcess,
    IN ULONG64                      BaseOfDll,
    IN PCWSTR                       Mask,
    IN PSYM_ENUMERATESYMBOLS_CALLBACKW   EnumSymbolsCallback,
    IN PVOID                        UserContext
    );

BOOL
IMAGEAPI
SymEnumSymbolsForAddr(
    IN HANDLE                       hProcess,
    IN DWORD64                      Address,
    IN PSYM_ENUMERATESYMBOLS_CALLBACK    EnumSymbolsCallback,
    IN PVOID                        UserContext
    );

BOOL
IMAGEAPI
SymEnumSymbolsForAddrW(
    IN HANDLE                       hProcess,
    IN DWORD64                      Address,
    IN PSYM_ENUMERATESYMBOLS_CALLBACKW   EnumSymbolsCallback,
    IN PVOID                        UserContext
    );

#define SYMSEARCH_MASKOBJS      0x01    // used internally to implement other APIs
#define SYMSEARCH_RECURSE       0X02    // recurse scopes
#define SYMSEARCH_GLOBALSONLY   0X04    // search only for global symbols

BOOL
IMAGEAPI
SymSearch(
    IN HANDLE                       hProcess,
    IN ULONG64                      BaseOfDll,
    IN DWORD                        Index,
    IN DWORD                        SymTag,
    IN PCSTR                        Mask,
    IN DWORD64                      Address,
    IN PSYM_ENUMERATESYMBOLS_CALLBACK  EnumSymbolsCallback,
    IN PVOID                        UserContext,
    IN DWORD                        Options
    );

BOOL
IMAGEAPI
SymSearchW(
    IN HANDLE                       hProcess,
    IN ULONG64                      BaseOfDll,
    IN DWORD                        Index,
    IN DWORD                        SymTag,
    IN PCWSTR                       Mask,
    IN DWORD64                      Address,
    IN PSYM_ENUMERATESYMBOLS_CALLBACKW EnumSymbolsCallback,
    IN PVOID                        UserContext,
    IN DWORD                        Options
    );

BOOL
IMAGEAPI
SymGetScope(
    IN  HANDLE       hProcess,
    IN  ULONG64      BaseOfDll,
    IN  DWORD        Index,
    OUT PSYMBOL_INFO Symbol
    );

BOOL
IMAGEAPI
SymGetScopeW(
    IN  HANDLE        hProcess,
    IN  ULONG64       BaseOfDll,
    IN  DWORD         Index,
    OUT PSYMBOL_INFOW Symbol
    );

BOOL
IMAGEAPI
SymFromIndex(
    IN  HANDLE       hProcess,
    IN  ULONG64      BaseOfDll,
    IN  DWORD        Index,
    OUT PSYMBOL_INFO Symbol
    );

BOOL
IMAGEAPI
SymFromIndexW(
    IN  HANDLE        hProcess,
    IN  ULONG64       BaseOfDll,
    IN  DWORD         Index,
    OUT PSYMBOL_INFOW Symbol
    );

typedef enum _IMAGEHLP_SYMBOL_TYPE_INFO {
    TI_GET_SYMTAG,
    TI_GET_SYMNAME,
    TI_GET_LENGTH,
    TI_GET_TYPE,
    TI_GET_TYPEID,
    TI_GET_BASETYPE,
    TI_GET_ARRAYINDEXTYPEID,
    TI_FINDCHILDREN,
    TI_GET_DATAKIND,
    TI_GET_ADDRESSOFFSET,
    TI_GET_OFFSET,
    TI_GET_VALUE,
    TI_GET_COUNT,
    TI_GET_CHILDRENCOUNT,
    TI_GET_BITPOSITION,
    TI_GET_VIRTUALBASECLASS,
    TI_GET_VIRTUALTABLESHAPEID,
    TI_GET_VIRTUALBASEPOINTEROFFSET,
    TI_GET_CLASSPARENTID,
    TI_GET_NESTED,
    TI_GET_SYMINDEX,
    TI_GET_LEXICALPARENT,
    TI_GET_ADDRESS,
    TI_GET_THISADJUST,
    TI_GET_UDTKIND,
    TI_IS_EQUIV_TO,
    TI_GET_CALLING_CONVENTION,
    TI_IS_CLOSE_EQUIV_TO,
    TI_GTIEX_REQS_VALID,
    TI_GET_VIRTUALBASEOFFSET,
    TI_GET_VIRTUALBASEDISPINDEX,
    IMAGEHLP_SYMBOL_TYPE_INFO_MAX,
} IMAGEHLP_SYMBOL_TYPE_INFO;

typedef struct _TI_FINDCHILDREN_PARAMS {
    ULONG Count;
    ULONG Start;
    ULONG ChildId[1];
} TI_FINDCHILDREN_PARAMS;

BOOL
IMAGEAPI
SymGetTypeInfo(
    IN  HANDLE          hProcess,
    IN  DWORD64         ModBase,
    IN  ULONG           TypeId,
    IN  IMAGEHLP_SYMBOL_TYPE_INFO GetType,
    OUT PVOID           pInfo
    );

#define IMAGEHLP_GET_TYPE_INFO_UNCACHED 0x00000001
#define IMAGEHLP_GET_TYPE_INFO_CHILDREN 0x00000002

typedef struct _IMAGEHLP_GET_TYPE_INFO_PARAMS {
    IN  ULONG    SizeOfStruct;
    IN  ULONG    Flags;
    IN  ULONG    NumIds;
    IN  PULONG   TypeIds;
    IN  ULONG64  TagFilter;
    IN  ULONG    NumReqs;
    IN  IMAGEHLP_SYMBOL_TYPE_INFO* ReqKinds;
    IN  PULONG_PTR ReqOffsets;
    IN  PULONG   ReqSizes;
    IN  ULONG_PTR ReqStride;
    IN  ULONG_PTR BufferSize;
    OUT PVOID    Buffer;
    OUT ULONG    EntriesMatched;
    OUT ULONG    EntriesFilled;
    OUT ULONG64  TagsFound;
    OUT ULONG64  AllReqsValid;
    IN  ULONG    NumReqsValid;
    OUT PULONG64 ReqsValid OPTIONAL;
} IMAGEHLP_GET_TYPE_INFO_PARAMS, *PIMAGEHLP_GET_TYPE_INFO_PARAMS;

BOOL
IMAGEAPI
SymGetTypeInfoEx(
    IN     HANDLE                         hProcess,
    IN     DWORD64                        ModBase,
    IN OUT PIMAGEHLP_GET_TYPE_INFO_PARAMS Params
    );

BOOL
IMAGEAPI
SymEnumTypes(
    IN HANDLE                       hProcess,
    IN ULONG64                      BaseOfDll,
    IN PSYM_ENUMERATESYMBOLS_CALLBACK    EnumSymbolsCallback,
    IN PVOID                        UserContext
    );

BOOL
IMAGEAPI
SymEnumTypesW(
    IN HANDLE                       hProcess,
    IN ULONG64                      BaseOfDll,
    IN PSYM_ENUMERATESYMBOLS_CALLBACKW   EnumSymbolsCallback,
    IN PVOID                        UserContext
    );

BOOL
IMAGEAPI
SymGetTypeFromName(
    IN  HANDLE              hProcess,
    IN  ULONG64             BaseOfDll,
    IN  PCSTR               Name,
    OUT PSYMBOL_INFO        Symbol
    );

BOOL
IMAGEAPI
SymGetTypeFromNameW(
    IN  HANDLE              hProcess,
    IN  ULONG64             BaseOfDll,
    IN  PCWSTR              Name,
    OUT PSYMBOL_INFOW       Symbol
    );

BOOL
IMAGEAPI
SymAddSymbol(
    IN HANDLE                       hProcess,
    IN ULONG64                      BaseOfDll,
    IN PCSTR                        Name,
    IN DWORD64                      Address,
    IN DWORD                        Size,
    IN DWORD                        Flags
    );

BOOL
IMAGEAPI
SymAddSymbolW(
    IN HANDLE                       hProcess,
    IN ULONG64                      BaseOfDll,
    IN PCWSTR                       Name,
    IN DWORD64                      Address,
    IN DWORD                        Size,
    IN DWORD                        Flags
    );

BOOL
IMAGEAPI
SymDeleteSymbol(
    IN HANDLE                       hProcess,
    IN ULONG64                      BaseOfDll,
    IN PCSTR                        Name,
    IN DWORD64                      Address,
    IN DWORD                        Flags
    );

BOOL
IMAGEAPI
SymDeleteSymbolW(
    IN HANDLE                       hProcess,
    IN ULONG64                      BaseOfDll,
    IN PCWSTR                       Name,
    IN DWORD64                      Address,
    IN DWORD                        Flags
    );

BOOL
IMAGEAPI
SymSrvIsStoreW(
    HANDLE hProcess,
    PCWSTR path
    );

BOOL
IMAGEAPI
SymSrvIsStore(
    HANDLE hProcess,
    PCSTR  path
    );

PCSTR
IMAGEAPI
SymSrvDeltaName(
    HANDLE hProcess,
    PCSTR  SymPath,
    PCSTR  Type,
    PCSTR  File1,
    PCSTR  File2
    );

PCWSTR
IMAGEAPI
SymSrvDeltaNameW(
    HANDLE hProcess,
    PCWSTR SymPath,
    PCWSTR Type,
    PCWSTR File1,
    PCWSTR File2
    );

PCSTR
IMAGEAPI
SymSrvGetSupplement(
    HANDLE hProcess,
    PCSTR  SymPath,
    PCSTR  Node,
    PCSTR  File
    );

PCWSTR
IMAGEAPI
SymSrvGetSupplementW(
    HANDLE hProcess,
    PCWSTR SymPath,
    PCWSTR Node,
    PCWSTR File
    );

BOOL
IMAGEAPI
SymSrvGetFileIndexes(
    PCSTR    File,
    GUID    *Id,
    DWORD   *Val1,
    DWORD   *Val2,
    DWORD    Flags
    );

BOOL
IMAGEAPI
SymSrvGetFileIndexesW(
    PCWSTR   File,
    GUID    *Id,
    DWORD   *Val1,
    DWORD   *Val2,
    DWORD    Flags
    );

BOOL
IMAGEAPI
SymSrvGetFileIndexStringW(
    HANDLE   hProcess,
    PCWSTR   SrvPath,
    PCWSTR   File,
    PWSTR    Index,
    size_t   Size,
    DWORD    Flags
    );

BOOL
IMAGEAPI
SymSrvGetFileIndexString(
    HANDLE   hProcess,
    PCSTR    SrvPath,
    PCSTR    file,
    PSTR     index,
    size_t   size,
    DWORD    Flags
    );

PCSTR
IMAGEAPI
SymSrvStoreSupplement(
    HANDLE hProcess,
    PCSTR  SymPath,
    PCSTR  Node,
    PCSTR  File,
    DWORD  Flags
    );

PCWSTR
IMAGEAPI
SymSrvStoreSupplementW(
    HANDLE hProcess,
    PCWSTR SymPath,
    PCWSTR Node,
    PCWSTR File,
    DWORD  Flags
    );

PCSTR
IMAGEAPI
SymSrvStoreFile(
    HANDLE   hProcess,
    PCSTR    SrvPath,
    PCSTR    File,
    DWORD    Flags
    );

PCWSTR
IMAGEAPI
SymSrvStoreFileW(
    HANDLE   hProcess,
    PCWSTR   SrvPath,
    PCWSTR   File,
    DWORD    Flags
    );

// used by SymGetSymbolFile's "Type" parameter

typedef enum {
    sfImage = 0,
    sfDbg,
    sfPdb,
    sfMpd,
    sfMax
};

BOOL
IMAGEAPI
SymGetSymbolFile(
    HANDLE hProcess,
    PCSTR  SymPath,
    PCSTR  ImageFile,
    DWORD  Type,
    PSTR   SymbolFile,
    size_t cSymbolFile,
    PSTR   DbgFile,
    size_t cDbgFile
    );

BOOL
IMAGEAPI
SymGetSymbolFileW(
    HANDLE hProcess,
    PCWSTR SymPath,
    PCWSTR ImageFile,
    DWORD  Type,
    PWSTR  SymbolFile,
    size_t cSymbolFile,
    PWSTR  DbgFile,
    size_t cDbgFile
    );

//
// Full user-mode dump creation.
//

typedef BOOL (WINAPI *PDBGHELP_CREATE_USER_DUMP_CALLBACK)(
    DWORD       DataType,
    PVOID*      Data,
    LPDWORD     DataLength,
    PVOID       UserData
    );

BOOL
WINAPI
DbgHelpCreateUserDump(
    IN LPSTR                              FileName,
    IN PDBGHELP_CREATE_USER_DUMP_CALLBACK Callback,
    IN PVOID                              UserData
    );

BOOL
WINAPI
DbgHelpCreateUserDumpW(
    IN LPWSTR                             FileName,
    IN PDBGHELP_CREATE_USER_DUMP_CALLBACK Callback,
    IN PVOID                              UserData
    );

// -----------------------------------------------------------------
// The following 4 legacy APIs are fully supported, but newer
// ones are recommended.  SymFromName and SymFromAddr provide
// much more detailed info on the returned symbol.

BOOL
IMAGEAPI
SymGetSymFromAddr64(
    IN  HANDLE              hProcess,
    IN  DWORD64             qwAddr,
    OUT PDWORD64            pdwDisplacement,
    OUT PIMAGEHLP_SYMBOL64  Symbol
    );


#if !defined(_IMAGEHLP_SOURCE_) && defined(_IMAGEHLP64)
#define SymGetSymFromAddr SymGetSymFromAddr64
#else
BOOL
IMAGEAPI
SymGetSymFromAddr(
    IN  HANDLE            hProcess,
    IN  DWORD             dwAddr,
    OUT PDWORD            pdwDisplacement,
    OUT PIMAGEHLP_SYMBOL  Symbol
    );
#endif

// While following two APIs will provide a symbol from a name,
// SymEnumSymbols can provide the same matching information
// for ALL symbols with a matching name, even regular
// expressions.  That way you can search across modules
// and differentiate between identically named symbols.

BOOL
IMAGEAPI
SymGetSymFromName64(
    IN  HANDLE              hProcess,
    IN  PCSTR               Name,
    OUT PIMAGEHLP_SYMBOL64  Symbol
    );

#if !defined(_IMAGEHLP_SOURCE_) && defined(_IMAGEHLP64)
#define SymGetSymFromName SymGetSymFromName64
#else
BOOL
IMAGEAPI
SymGetSymFromName(
    IN  HANDLE            hProcess,
    IN  PCSTR             Name,
    OUT PIMAGEHLP_SYMBOL  Symbol
    );
#endif


// Symbol server exports

typedef BOOL (WINAPI *PSYMBOLSERVERPROC)(PCSTR, PCSTR, PVOID, DWORD, DWORD, PSTR);
typedef BOOL (WINAPI *PSYMBOLSERVERPROCA)(PCSTR, PCSTR, PVOID, DWORD, DWORD, PSTR);
typedef BOOL (WINAPI *PSYMBOLSERVERPROCW)(PCWSTR, PCWSTR, PVOID, DWORD, DWORD, PWSTR);
typedef BOOL (WINAPI *PSYMBOLSERVERBYINDEXPROC)(PCSTR, PCSTR, PCSTR, PSTR);
typedef BOOL (WINAPI *PSYMBOLSERVERBYINDEXPROCA)(PCSTR, PCSTR, PCSTR, PSTR);
typedef BOOL (WINAPI *PSYMBOLSERVERBYINDEXPROCW)(PCWSTR, PCWSTR, PCWSTR, PWSTR);
typedef BOOL (WINAPI *PSYMBOLSERVEROPENPROC)(VOID);
typedef BOOL (WINAPI *PSYMBOLSERVERCLOSEPROC)(VOID);
typedef BOOL (WINAPI *PSYMBOLSERVERSETOPTIONSPROC)(UINT_PTR, ULONG64);
typedef BOOL (WINAPI *PSYMBOLSERVERSETOPTIONSWPROC)(UINT_PTR, ULONG64);
typedef BOOL (CALLBACK WINAPI *PSYMBOLSERVERCALLBACKPROC)(UINT_PTR action, ULONG64 data, ULONG64 context);
typedef UINT_PTR (WINAPI *PSYMBOLSERVERGETOPTIONSPROC)();
typedef BOOL (WINAPI *PSYMBOLSERVERPINGPROC)(PCSTR);
typedef BOOL (WINAPI *PSYMBOLSERVERPINGPROCA)(PCSTR);
typedef BOOL (WINAPI *PSYMBOLSERVERPINGPROCW)(PCWSTR);
typedef BOOL (WINAPI *PSYMBOLSERVERGETVERSION)(LPAPI_VERSION);
typedef BOOL (WINAPI *PSYMBOLSERVERDELTANAME)(PCSTR, PVOID, DWORD, DWORD, PVOID, DWORD, DWORD, PSTR, size_t);
typedef BOOL (WINAPI *PSYMBOLSERVERDELTANAMEW)(PCWSTR, PVOID, DWORD, DWORD, PVOID, DWORD, DWORD, PWSTR, size_t);
typedef BOOL (WINAPI *PSYMBOLSERVERGETSUPPLEMENT)(PCSTR, PCSTR, PCSTR, PSTR, size_t);
typedef BOOL (WINAPI *PSYMBOLSERVERGETSUPPLEMENTW)(PCWSTR, PCWSTR, PCWSTR, PWSTR, size_t);
typedef BOOL (WINAPI *PSYMBOLSERVERSTORESUPPLEMENT)(PCSTR, PCSTR, PCSTR, PSTR, size_t, DWORD);
typedef BOOL (WINAPI *PSYMBOLSERVERSTORESUPPLEMENTW)(PCWSTR, PCWSTR, PCWSTR, PWSTR, size_t, DWORD);
typedef BOOL (WINAPI *PSYMBOLSERVERGETINDEXSTRING)(PVOID, DWORD, DWORD, PSTR, size_t);
typedef BOOL (WINAPI *PSYMBOLSERVERGETINDEXSTRINGW)(PVOID, DWORD, DWORD, PWSTR, size_t);
typedef BOOL (WINAPI *PSYMBOLSERVERSTOREFILE)(PCSTR, PCSTR, PVOID, DWORD, DWORD, PSTR, size_t, DWORD);
typedef BOOL (WINAPI *PSYMBOLSERVERSTOREFILEW)(PCWSTR, PCWSTR, PVOID, DWORD, DWORD, PWSTR, size_t, DWORD);
typedef BOOL (WINAPI *PSYMBOLSERVERISSTORE)(PCSTR);
typedef BOOL (WINAPI *PSYMBOLSERVERISSTOREW)(PCWSTR);

#define SSRVOPT_CALLBACK            0x00001
#define SSRVOPT_DWORD               0x00002
#define SSRVOPT_DWORDPTR            0x00004
#define SSRVOPT_GUIDPTR             0x00008
#define SSRVOPT_OLDGUIDPTR          0x00010
#define SSRVOPT_UNATTENDED          0x00020
#define SSRVOPT_NOCOPY              0x00040
#define SSRVOPT_GETPATH             0x00040
#define SSRVOPT_PARENTWIN           0x00080
#define SSRVOPT_PARAMTYPE           0x00100
#define SSRVOPT_SECURE              0x00200
#define SSRVOPT_TRACE               0x00400
#define SSRVOPT_SETCONTEXT          0x00800
#define SSRVOPT_PROXY               0x01000
#define SSRVOPT_DOWNSTREAM_STORE    0x02000
#define SSRVOPT_OVERWRITE           0x04000
#define SSRVOPT_RESETTOU            0x08000
#define SSRVOPT_CALLBACKW           0x10000
#define SSRVOPT_FLAT_DEFAULT_STORE  0x20000

#define SSRVOPT_MAX                 0x40000

#define SSRVOPT_RESET               ((ULONG_PTR)-1)


#define NUM_SSRVOPTS                30

#define SSRVACTION_TRACE        1
#define SSRVACTION_QUERYCANCEL  2
#define SSRVACTION_EVENT        3
#define SSRVACTION_EVENTW       4

#define SYMSTOREOPT_COMPRESS    0x01
#define SYMSTOREOPT_OVERWRITE   0x02
#define SYMSTOREOPT_RETURNINDEX 0x04
#define SYMSTOREOPT_POINTER     0x08
#define SYMSTOREOPT_ALT_INDEX   0x10

#ifdef DBGHELP_TRANSLATE_TCHAR
 #define SymInitialize                     SymInitializeW
 #define SymAddSymbol                      SymAddSymbolW
 #define SymDeleteSymbol                   SymDeleteSymbolW
 #define SearchTreeForFile                 SearchTreeForFileW
 #define UnDecorateSymbolName              UnDecorateSymbolNameW
 #define SymGetLineFromName64              SymGetLineFromNameW64
 #define SymGetLineFromAddr64              SymGetLineFromAddrW64
 #define SymGetLineNext64                  SymGetLineNextW64
 #define SymGetLinePrev64                  SymGetLinePrevW64
 #define SymFromName                       SymFromNameW
 #define FindExecutableImageEx             FindExecutableImageExW
 #define SymSearch                         SymSearchW
 #define SymEnumLines                      SymEnumLinesW
 #define SymGetTypeFromName                SymGetTypeFromNameW
 #define SymEnumSymbolsForAddr             SymEnumSymbolsForAddrW
 #define SymFromAddr                       SymFromAddrW
 #define SymEnumSourceFiles                SymEnumSourceFilesW
 #define SymEnumSymbols                    SymEnumSymbolsW
 #define SymLoadModuleEx                   SymLoadModuleExW
 #define SymSetSearchPath                  SymSetSearchPathW
 #define SymGetSearchPath                  SymGetSearchPathW
 #define EnumDirTree                       EnumDirTreeW
 #define SymFromToken                      SymFromTokenW
 #define SymFromIndex                      SymFromIndexW
 #define SymGetScope                       SymGetScopeW
 #define SymNext                           SymNextW
 #define SymPrev                           SymPrevW
 #define SymEnumTypes                      SymEnumTypesW
 #define SymRegisterCallback64             SymRegisterCallbackW64
 #define FindDebugInfoFileEx               FindDebugInfoFileExW
 #define SymFindFileInPath                 SymFindFileInPathW
 #define SymEnumerateModules64             SymEnumerateModulesW64
 #define SymSetHomeDirectory               SymSetHomeDirectoryW
 #define SymGetHomeDirectory               SymGetHomeDirectoryW
 #define SymGetSourceFileToken             SymGetSourceFileTokenW
 #define SymGetSourceFileFromToken         SymGetSourceFileFromTokenW
 #define SymGetSourceVarFromToken          SymGetSourceVarFromTokenW
 #define SymGetSourceFileToken             SymGetSourceFileTokenW
 #define SymGetFileLineOffsets64           SymGetFileLineOffsetsW64
 #define SymFindFileInPath                 SymFindFileInPathW
 #define SymMatchFileName                  SymMatchFileNameW
 #define SymGetSourceFileFromToken         SymGetSourceFileFromTokenW
 #define SymGetSourceVarFromToken          SymGetSourceVarFromTokenW
 #define SymGetModuleInfo64                SymGetModuleInfoW64
 #define SymSrvIsStore                     SymSrvIsStoreW
 #define SymSrvDeltaName                   SymSrvDeltaNameW
 #define SymSrvGetSupplement               SymSrvGetSupplementW
 #define SymSrvStoreSupplement             SymSrvStoreSupplementW
 #define SymSrvGetFileIndexes              SymSrvGetFileIndexes
 #define SymSrvGetFileIndexString          SymSrvGetFileIndexStringW
 #define SymSrvStoreFile                   SymSrvStoreFileW
 #define SymGetSymbolFile                  SymGetSymbolFileW

 #define IMAGEHLP_LINE64                   IMAGEHLP_LINEW64
 #define PIMAGEHLP_LINE64                  PIMAGEHLP_LINEW64
 #define SYMBOL_INFO                       SYMBOL_INFOW
 #define PSYMBOL_INFO                      PSYMBOL_INFOW
 #define SYMBOL_INFO_PACKAGE               SYMBOL_INFO_PACKAGEW
 #define PSYMBOL_INFO_PACKAGE              PSYMBOL_INFO_PACKAGEW
 #define FIND_EXE_FILE_CALLBACK            FIND_EXE_FILE_CALLBACKW
 #define PFIND_EXE_FILE_CALLBACK           PFIND_EXE_FILE_CALLBACKW
 #define SYM_ENUMERATESYMBOLS_CALLBACK     SYM_ENUMERATESYMBOLS_CALLBACKW
 #define PSYM_ENUMERATESYMBOLS_CALLBACK    PSYM_ENUMERATESYMBOLS_CALLBACKW
 #define SRCCODEINFO                       SRCCODEINFOW
 #define PSRCCODEINFO                      PSRCCODEINFOW
 #define SOURCEFILE                        SOURCEFILEW
 #define PSOURCEFILE                       PSOURCEFILEW
 #define SYM_ENUMSOURECFILES_CALLBACK      SYM_ENUMSOURCEFILES_CALLBACKW
 #define PSYM_ENUMSOURCEFILES_CALLBACK     PSYM_ENUMSOURECFILES_CALLBACKW
 #define IMAGEHLP_CBA_EVENT                IMAGEHLP_CBA_EVENTW
 #define PIMAGEHLP_CBA_EVENT               PIMAGEHLP_CBA_EVENTW
 #define PENUMDIRTREE_CALLBACK             PENUMDIRTREE_CALLBACKW
 #define IMAGEHLP_DEFERRED_SYMBOL_LOAD64   IMAGEHLP_DEFERRED_SYMBOL_LOADW64
 #define PIMAGEHLP_DEFERRED_SYMBOL_LOAD64  PIMAGEHLP_DEFERRED_SYMBOL_LOADW64
 #define PFIND_DEBUG_FILE_CALLBACK         PFIND_DEBUG_FILE_CALLBACKW
 #define PFINDFILEINPATHCALLBACK           PFINDFILEINPATHCALLBACKW
 #define IMAGEHLP_MODULE64                 IMAGEHLP_MODULEW64
 #define PIMAGEHLP_MODULE64                PIMAGEHLP_MODULEW64

 #define PSYMBOLSERVERPROC                 PSYMBOLSERVERPROCW
 #define PSYMBOLSERVERPINGPROC             PSYMBOLSERVERPINGPROCW
#endif

// -----------------------------------------------------------------
// The following APIs exist only for backwards compatibility
// with a pre-release version documented in an MSDN release.

// You should use SymFindFileInPath if you want to maintain
// future compatibility.

DBHLP_DEPRECIATED
BOOL
IMAGEAPI
FindFileInPath(
    HANDLE hprocess,
    PCSTR  SearchPath,
    PCSTR  FileName,
    PVOID  id,
    DWORD  two,
    DWORD  three,
    DWORD  flags,
    LPSTR  FilePath
    );

// You should use SymFindFileInPath if you want to maintain
// future compatibility.

DBHLP_DEPRECIATED
BOOL
IMAGEAPI
FindFileInSearchPath(
    HANDLE hprocess,
    PCSTR  SearchPath,
    PCSTR  FileName,
    DWORD  one,
    DWORD  two,
    DWORD  three,
    LPSTR  FilePath
    );

DBHLP_DEPRECIATED
BOOL
IMAGEAPI
SymEnumSym(
    IN HANDLE                       hProcess,
    IN ULONG64                      BaseOfDll,
    IN PSYM_ENUMERATESYMBOLS_CALLBACK    EnumSymbolsCallback,
    IN PVOID                        UserContext
    );

DBHLP_DEPRECIATED
BOOL
IMAGEAPI
SymEnumerateSymbols64(
    IN HANDLE                       hProcess,
    IN DWORD64                      BaseOfDll,
    IN PSYM_ENUMSYMBOLS_CALLBACK64  EnumSymbolsCallback,
    IN PVOID                        UserContext
    );

DBHLP_DEPRECIATED
BOOL
IMAGEAPI
SymEnumerateSymbolsW64(
    IN HANDLE                       hProcess,
    IN DWORD64                      BaseOfDll,
    IN PSYM_ENUMSYMBOLS_CALLBACK64W EnumSymbolsCallback,
    IN PVOID                        UserContext
    );


#if !defined(_IMAGEHLP_SOURCE_) && defined(_IMAGEHLP64)
#define SymEnumerateSymbols SymEnumerateSymbols64
#define SymEnumerateSymbolsW SymEnumerateSymbolsW64
#else
DBHLP_DEPRECIATED
BOOL
IMAGEAPI
SymEnumerateSymbols(
    IN HANDLE                     hProcess,
    IN DWORD                      BaseOfDll,
    IN PSYM_ENUMSYMBOLS_CALLBACK  EnumSymbolsCallback,
    IN PVOID                      UserContext
    );

DBHLP_DEPRECIATED
BOOL
IMAGEAPI
SymEnumerateSymbolsW(
    IN HANDLE                       hProcess,
    IN DWORD                        BaseOfDll,
    IN PSYM_ENUMSYMBOLS_CALLBACKW   EnumSymbolsCallback,
    IN PVOID                        UserContext
    );
#endif

BOOL
IMAGEAPI
SymGetSymNext64(
    IN     HANDLE              hProcess,
    IN OUT PIMAGEHLP_SYMBOL64  Symbol
    );

BOOL
IMAGEAPI
SymGetSymNextW64(
    IN     HANDLE              hProcess,
    IN OUT PIMAGEHLP_SYMBOLW64 Symbol
    );

#if !defined(_IMAGEHLP_SOURCE_) && defined(_IMAGEHLP64)
#define SymGetSymNext SymGetSymNext64
#define SymGetSymNextW SymGetSymNextW64
#else
BOOL
IMAGEAPI
SymGetSymNext(
    IN     HANDLE            hProcess,
    IN OUT PIMAGEHLP_SYMBOL  Symbol
    );

BOOL
IMAGEAPI
SymGetSymNextW(
    IN     HANDLE            hProcess,
    IN OUT PIMAGEHLP_SYMBOLW Symbol
    );
#endif

BOOL
IMAGEAPI
SymGetSymPrev64(
    IN     HANDLE              hProcess,
    IN OUT PIMAGEHLP_SYMBOL64  Symbol
    );

BOOL
IMAGEAPI
SymGetSymPrevW64(
    IN     HANDLE              hProcess,
    IN OUT PIMAGEHLP_SYMBOLW64 Symbol
    );

#if !defined(_IMAGEHLP_SOURCE_) && defined(_IMAGEHLP64)
#define SymGetSymPrev SymGetSymPrev64
#define SymGetSymPrevW SymGetSymPrevW64
#else
BOOL
IMAGEAPI
SymGetSymPrev(
    IN     HANDLE            hProcess,
    IN OUT PIMAGEHLP_SYMBOL  Symbol
    );

BOOL
IMAGEAPI
SymGetSymPrevW(
    IN     HANDLE            hProcess,
    IN OUT PIMAGEHLP_SYMBOLW Symbol
    );
#endif


// These values should not be used.
// They have been replaced by SYMFLAG_ values.

#define SYMF_OMAP_GENERATED   0x00000001
#define SYMF_OMAP_MODIFIED    0x00000002
#define SYMF_REGISTER         0x00000008
#define SYMF_REGREL           0x00000010
#define SYMF_FRAMEREL         0x00000020
#define SYMF_PARAMETER        0x00000040
#define SYMF_LOCAL            0x00000080
#define SYMF_CONSTANT         0x00000100
#define SYMF_EXPORT           0x00000200
#define SYMF_FORWARDER        0x00000400
#define SYMF_FUNCTION         0x00000800
#define SYMF_VIRTUAL          0x00001000
#define SYMF_THUNK            0x00002000
#define SYMF_TLSREL           0x00004000

// These values should also not be used.
// They have been replaced by SYMFLAG_ values.

#define IMAGEHLP_SYMBOL_INFO_VALUEPRESENT          1
#define IMAGEHLP_SYMBOL_INFO_REGISTER              SYMF_REGISTER        // 0x0008
#define IMAGEHLP_SYMBOL_INFO_REGRELATIVE           SYMF_REGREL          // 0x0010
#define IMAGEHLP_SYMBOL_INFO_FRAMERELATIVE         SYMF_FRAMEREL        // 0x0020
#define IMAGEHLP_SYMBOL_INFO_PARAMETER             SYMF_PARAMETER       // 0x0040
#define IMAGEHLP_SYMBOL_INFO_LOCAL                 SYMF_LOCAL           // 0x0080
#define IMAGEHLP_SYMBOL_INFO_CONSTANT              SYMF_CONSTANT        // 0x0100
#define IMAGEHLP_SYMBOL_FUNCTION                   SYMF_FUNCTION        // 0x0800
#define IMAGEHLP_SYMBOL_VIRTUAL                    SYMF_VIRTUAL         // 0x1000
#define IMAGEHLP_SYMBOL_THUNK                      SYMF_THUNK           // 0x2000
#define IMAGEHLP_SYMBOL_INFO_TLSRELATIVE           SYMF_TLSREL          // 0x4000


#include <pshpack4.h>

#if defined(_MSC_VER)
#if _MSC_VER >= 800
#if _MSC_VER >= 1200
#pragma warning(push)
#endif
#pragma warning(disable:4200)    /* Zero length array */
#pragma warning(disable:4201)    /* Nameless struct/union */
#endif
#endif

#define MINIDUMP_SIGNATURE ('PMDM')
#define MINIDUMP_VERSION   (42899)
typedef DWORD RVA;
typedef ULONG64 RVA64;

typedef struct _MINIDUMP_LOCATION_DESCRIPTOR {
    ULONG32 DataSize;
    RVA Rva;
} MINIDUMP_LOCATION_DESCRIPTOR;

typedef struct _MINIDUMP_LOCATION_DESCRIPTOR64 {
    ULONG64 DataSize;
    RVA64 Rva;
} MINIDUMP_LOCATION_DESCRIPTOR64;


typedef struct _MINIDUMP_MEMORY_DESCRIPTOR {
    ULONG64 StartOfMemoryRange;
    MINIDUMP_LOCATION_DESCRIPTOR Memory;
} MINIDUMP_MEMORY_DESCRIPTOR, *PMINIDUMP_MEMORY_DESCRIPTOR;

// DESCRIPTOR64 is used for full-memory minidumps where
// all of the raw memory is laid out sequentially at the
// end of the dump.  There is no need for individual RVAs
// as the RVA is the base RVA plus the sum of the preceeding
// data blocks.
typedef struct _MINIDUMP_MEMORY_DESCRIPTOR64 {
    ULONG64 StartOfMemoryRange;
    ULONG64 DataSize;
} MINIDUMP_MEMORY_DESCRIPTOR64, *PMINIDUMP_MEMORY_DESCRIPTOR64;


typedef struct _MINIDUMP_HEADER {
    ULONG32 Signature;
    ULONG32 Version;
    ULONG32 NumberOfStreams;
    RVA StreamDirectoryRva;
    ULONG32 CheckSum;
    union {
        ULONG32 Reserved;
        ULONG32 TimeDateStamp;
    };
    ULONG64 Flags;
} MINIDUMP_HEADER, *PMINIDUMP_HEADER;

//
// The MINIDUMP_HEADER field StreamDirectoryRva points to 
// an array of MINIDUMP_DIRECTORY structures.
//

typedef struct _MINIDUMP_DIRECTORY {
    ULONG32 StreamType;
    MINIDUMP_LOCATION_DESCRIPTOR Location;
} MINIDUMP_DIRECTORY, *PMINIDUMP_DIRECTORY;


typedef struct _MINIDUMP_STRING {
    ULONG32 Length;         // Length in bytes of the string
    WCHAR   Buffer [0];     // Variable size buffer
} MINIDUMP_STRING, *PMINIDUMP_STRING;



//
// The MINIDUMP_DIRECTORY field StreamType may be one of the following types.
// Types will be added in the future, so if a program reading the minidump
// header encounters a stream type it does not understand it should ignore
// the data altogether. Any tag above LastReservedStream will not be used by
// the system and is reserved for program-specific information.
//

typedef enum _MINIDUMP_STREAM_TYPE {

    UnusedStream                = 0,
    ReservedStream0             = 1,
    ReservedStream1             = 2,
    ThreadListStream            = 3,
    ModuleListStream            = 4,
    MemoryListStream            = 5,
    ExceptionStream             = 6,
    SystemInfoStream            = 7,
    ThreadExListStream          = 8,
    Memory64ListStream          = 9,
    CommentStreamA              = 10,
    CommentStreamW              = 11,
    HandleDataStream            = 12,
    FunctionTableStream         = 13,
    UnloadedModuleListStream    = 14,
    MiscInfoStream              = 15,
    MemoryInfoListStream        = 16,
    ThreadInfoListStream        = 17,

    ceStreamNull                = 0x8000,
    ceStreamSystemInfo          = 0x8001,
    ceStreamException           = 0x8002,
    ceStreamModuleList          = 0x8003,
    ceStreamProcessList         = 0x8004,
    ceStreamThreadList          = 0x8005, 
    ceStreamThreadContextList   = 0x8006,
    ceStreamThreadCallStackList = 0x8007,
    ceStreamMemoryVirtualList   = 0x8008,
    ceStreamMemoryPhysicalList  = 0x8009,
    ceStreamBucketParameters    = 0x800A,     

    LastReservedStream          = 0xffff

} MINIDUMP_STREAM_TYPE;


//
// The minidump system information contains processor and
// Operating System specific information.
// 

//
// CPU information is obtained from one of two places.
//
//  1) On x86 computers, CPU_INFORMATION is obtained from the CPUID
//     instruction. You must use the X86 portion of the union for X86
//     computers.
//
//  2) On non-x86 architectures, CPU_INFORMATION is obtained by calling
//     IsProcessorFeatureSupported().
//

typedef union _CPU_INFORMATION {

    //
    // X86 platforms use CPUID function to obtain processor information.
    //
    
    struct {

        //
        // CPUID Subfunction 0, register EAX (VendorId [0]),
        // EBX (VendorId [1]) and ECX (VendorId [2]).
        //
        
        ULONG32 VendorId [ 3 ];
        
        //
        // CPUID Subfunction 1, register EAX
        //
        
        ULONG32 VersionInformation;

        //
        // CPUID Subfunction 1, register EDX
        //
        
        ULONG32 FeatureInformation;
        

        //
        // CPUID, Subfunction 80000001, register EBX. This will only
        // be obtained if the vendor id is "AuthenticAMD".
        //
        
        ULONG32 AMDExtendedCpuFeatures;

    } X86CpuInfo;

    //
    // Non-x86 platforms use processor feature flags.
    //
    
    struct {

        ULONG64 ProcessorFeatures [ 2 ];
        
    } OtherCpuInfo;

} CPU_INFORMATION, *PCPU_INFORMATION;
        
typedef struct _MINIDUMP_SYSTEM_INFO {

    //
    // ProcessorArchitecture, ProcessorLevel and ProcessorRevision are all
    // taken from the SYSTEM_INFO structure obtained by GetSystemInfo( ).
    //
    
    USHORT ProcessorArchitecture;
    USHORT ProcessorLevel;
    USHORT ProcessorRevision;

    union {
        USHORT Reserved0;
        struct {
            UCHAR NumberOfProcessors;
            UCHAR ProductType;
        };
    };

    //
    // MajorVersion, MinorVersion, BuildNumber, PlatformId and
    // CSDVersion are all taken from the OSVERSIONINFO structure
    // returned by GetVersionEx( ).
    //
    
    ULONG32 MajorVersion;
    ULONG32 MinorVersion;
    ULONG32 BuildNumber;
    ULONG32 PlatformId;

    //
    // RVA to a CSDVersion string in the string table.
    //
    
    RVA CSDVersionRva;

    union {
        ULONG32 Reserved1;
        struct {
            USHORT SuiteMask;
            USHORT Reserved2;
        };
    };

    CPU_INFORMATION Cpu;

} MINIDUMP_SYSTEM_INFO, *PMINIDUMP_SYSTEM_INFO;


//
// The minidump thread contains standard thread
// information plus an RVA to the memory for this 
// thread and an RVA to the CONTEXT structure for
// this thread.
//


//
// ThreadId must be 4 bytes on all architectures.
//

C_ASSERT (sizeof ( ((PPROCESS_INFORMATION)0)->dwThreadId ) == 4);

typedef struct _MINIDUMP_THREAD {
    ULONG32 ThreadId;
    ULONG32 SuspendCount;
    ULONG32 PriorityClass;
    ULONG32 Priority;
    ULONG64 Teb;
    MINIDUMP_MEMORY_DESCRIPTOR Stack;
    MINIDUMP_LOCATION_DESCRIPTOR ThreadContext;
} MINIDUMP_THREAD, *PMINIDUMP_THREAD;

//
// The thread list is a container of threads.
//

typedef struct _MINIDUMP_THREAD_LIST {
    ULONG32 NumberOfThreads;
    MINIDUMP_THREAD Threads [0];
} MINIDUMP_THREAD_LIST, *PMINIDUMP_THREAD_LIST;


typedef struct _MINIDUMP_THREAD_EX {
    ULONG32 ThreadId;
    ULONG32 SuspendCount;
    ULONG32 PriorityClass;
    ULONG32 Priority;
    ULONG64 Teb;
    MINIDUMP_MEMORY_DESCRIPTOR Stack;
    MINIDUMP_LOCATION_DESCRIPTOR ThreadContext;
    MINIDUMP_MEMORY_DESCRIPTOR BackingStore;
} MINIDUMP_THREAD_EX, *PMINIDUMP_THREAD_EX;

//
// The thread list is a container of threads.
//

typedef struct _MINIDUMP_THREAD_EX_LIST {
    ULONG32 NumberOfThreads;
    MINIDUMP_THREAD_EX Threads [0];
} MINIDUMP_THREAD_EX_LIST, *PMINIDUMP_THREAD_EX_LIST;


//
// The MINIDUMP_EXCEPTION is the same as EXCEPTION on Win64.
//

typedef struct _MINIDUMP_EXCEPTION  {
    ULONG32 ExceptionCode;
    ULONG32 ExceptionFlags;
    ULONG64 ExceptionRecord;
    ULONG64 ExceptionAddress;
    ULONG32 NumberParameters;
    ULONG32 __unusedAlignment;
    ULONG64 ExceptionInformation [ EXCEPTION_MAXIMUM_PARAMETERS ];
} MINIDUMP_EXCEPTION, *PMINIDUMP_EXCEPTION;


//
// The exception information stream contains the id of the thread that caused
// the exception (ThreadId), the exception record for the exception
// (ExceptionRecord) and an RVA to the thread context where the exception
// occured.
//

typedef struct MINIDUMP_EXCEPTION_STREAM {
    ULONG32 ThreadId;
    ULONG32  __alignment;
    MINIDUMP_EXCEPTION ExceptionRecord;
    MINIDUMP_LOCATION_DESCRIPTOR ThreadContext;
} MINIDUMP_EXCEPTION_STREAM, *PMINIDUMP_EXCEPTION_STREAM;


//
// The MINIDUMP_MODULE contains information about a
// a specific module. It includes the CheckSum and
// the TimeDateStamp for the module so the module
// can be reloaded during the analysis phase.
//

typedef struct _MINIDUMP_MODULE {
    ULONG64 BaseOfImage;
    ULONG32 SizeOfImage;
    ULONG32 CheckSum;
    ULONG32 TimeDateStamp;
    RVA ModuleNameRva;
    VS_FIXEDFILEINFO VersionInfo;
    MINIDUMP_LOCATION_DESCRIPTOR CvRecord;
    MINIDUMP_LOCATION_DESCRIPTOR MiscRecord;
    ULONG64 Reserved0;                          // Reserved for future use.
    ULONG64 Reserved1;                          // Reserved for future use.
} MINIDUMP_MODULE, *PMINIDUMP_MODULE;   


//
// The minidump module list is a container for modules.
//

typedef struct _MINIDUMP_MODULE_LIST {
    ULONG32 NumberOfModules;
    MINIDUMP_MODULE Modules [ 0 ];
} MINIDUMP_MODULE_LIST, *PMINIDUMP_MODULE_LIST;


//
// Memory Ranges
//

typedef struct _MINIDUMP_MEMORY_LIST {
    ULONG32 NumberOfMemoryRanges;
    MINIDUMP_MEMORY_DESCRIPTOR MemoryRanges [0];
} MINIDUMP_MEMORY_LIST, *PMINIDUMP_MEMORY_LIST;

typedef struct _MINIDUMP_MEMORY64_LIST {
    ULONG64 NumberOfMemoryRanges;
    RVA64 BaseRva;
    MINIDUMP_MEMORY_DESCRIPTOR64 MemoryRanges [0];
} MINIDUMP_MEMORY64_LIST, *PMINIDUMP_MEMORY64_LIST;


//
// Support for user supplied exception information.
//

typedef struct _MINIDUMP_EXCEPTION_INFORMATION {
    DWORD ThreadId;
    PEXCEPTION_POINTERS ExceptionPointers;
    BOOL ClientPointers;
} MINIDUMP_EXCEPTION_INFORMATION, *PMINIDUMP_EXCEPTION_INFORMATION;

typedef struct _MINIDUMP_EXCEPTION_INFORMATION64 {
    DWORD ThreadId;
    ULONG64 ExceptionRecord;
    ULONG64 ContextRecord;
    BOOL ClientPointers;
} MINIDUMP_EXCEPTION_INFORMATION64, *PMINIDUMP_EXCEPTION_INFORMATION64;


//
// Support for capturing system handle state at the time of the dump.
//

typedef struct _MINIDUMP_HANDLE_DESCRIPTOR {
    ULONG64 Handle;
    RVA TypeNameRva;
    RVA ObjectNameRva;
    ULONG32 Attributes;
    ULONG32 GrantedAccess;
    ULONG32 HandleCount;
    ULONG32 PointerCount;
} MINIDUMP_HANDLE_DESCRIPTOR, *PMINIDUMP_HANDLE_DESCRIPTOR;

typedef struct _MINIDUMP_HANDLE_DATA_STREAM {
    ULONG32 SizeOfHeader;
    ULONG32 SizeOfDescriptor;
    ULONG32 NumberOfDescriptors;
    ULONG32 Reserved;
} MINIDUMP_HANDLE_DATA_STREAM, *PMINIDUMP_HANDLE_DATA_STREAM;


//
// Support for capturing dynamic function table state at the time of the dump.
//

typedef struct _MINIDUMP_FUNCTION_TABLE_DESCRIPTOR {
    ULONG64 MinimumAddress;
    ULONG64 MaximumAddress;
    ULONG64 BaseAddress;
    ULONG32 EntryCount;
    ULONG32 SizeOfAlignPad;
} MINIDUMP_FUNCTION_TABLE_DESCRIPTOR, *PMINIDUMP_FUNCTION_TABLE_DESCRIPTOR;

typedef struct _MINIDUMP_FUNCTION_TABLE_STREAM {
    ULONG32 SizeOfHeader;
    ULONG32 SizeOfDescriptor;
    ULONG32 SizeOfNativeDescriptor;
    ULONG32 SizeOfFunctionEntry;
    ULONG32 NumberOfDescriptors;
    ULONG32 SizeOfAlignPad;
} MINIDUMP_FUNCTION_TABLE_STREAM, *PMINIDUMP_FUNCTION_TABLE_STREAM;


//
// The MINIDUMP_UNLOADED_MODULE contains information about a
// a specific module that was previously loaded but no
// longer is.  This can help with diagnosing problems where
// callers attempt to call code that is no longer loaded.
//

typedef struct _MINIDUMP_UNLOADED_MODULE {
    ULONG64 BaseOfImage;
    ULONG32 SizeOfImage;
    ULONG32 CheckSum;
    ULONG32 TimeDateStamp;
    RVA ModuleNameRva;
} MINIDUMP_UNLOADED_MODULE, *PMINIDUMP_UNLOADED_MODULE;


//
// The minidump unloaded module list is a container for unloaded modules.
//

typedef struct _MINIDUMP_UNLOADED_MODULE_LIST {
    ULONG32 SizeOfHeader;
    ULONG32 SizeOfEntry;
    ULONG32 NumberOfEntries;
} MINIDUMP_UNLOADED_MODULE_LIST, *PMINIDUMP_UNLOADED_MODULE_LIST;


//
// The miscellaneous information stream contains a variety
// of small pieces of information.  A member is valid if
// it's within the available size and its corresponding
// bit is set.
//

#define MINIDUMP_MISC1_PROCESS_ID    0x00000001
#define MINIDUMP_MISC1_PROCESS_TIMES 0x00000002

typedef struct _MINIDUMP_MISC_INFO {
    ULONG32 SizeOfInfo;
    ULONG32 Flags1;
    ULONG32 ProcessId;
    ULONG32 ProcessCreateTime;
    ULONG32 ProcessUserTime;
    ULONG32 ProcessKernelTime;
} MINIDUMP_MISC_INFO, *PMINIDUMP_MISC_INFO;


//
// The memory information stream contains memory region
// description information.  This stream corresponds to
// what VirtualQuery would return for the process the
// dump was created for.
//

typedef struct _MINIDUMP_MEMORY_INFO {
    ULONG64 BaseAddress;
    ULONG64 AllocationBase;
    ULONG32 AllocationProtect;
    ULONG32 __alignment1;
    ULONG64 RegionSize;
    ULONG32 State;
    ULONG32 Protect;
    ULONG32 Type;
    ULONG32 __alignment2;
} MINIDUMP_MEMORY_INFO, *PMINIDUMP_MEMORY_INFO;

typedef struct _MINIDUMP_MEMORY_INFO_LIST {
    ULONG SizeOfHeader;
    ULONG SizeOfEntry;
    ULONG64 NumberOfEntries;
} MINIDUMP_MEMORY_INFO_LIST, *PMINIDUMP_MEMORY_INFO_LIST;

    
//
// The memory information stream contains memory region
// description information.  This stream corresponds to
// what VirtualQuery would return for the process the
// dump was created for.
//

// Thread dump writer status flags.
#define MINIDUMP_THREAD_INFO_ERROR_THREAD    0x00000001
#define MINIDUMP_THREAD_INFO_WRITING_THREAD  0x00000002
#define MINIDUMP_THREAD_INFO_EXITED_THREAD   0x00000004
#define MINIDUMP_THREAD_INFO_INVALID_INFO    0x00000008
#define MINIDUMP_THREAD_INFO_INVALID_CONTEXT 0x00000010
#define MINIDUMP_THREAD_INFO_INVALID_TEB     0x00000020

typedef struct _MINIDUMP_THREAD_INFO {
    ULONG32 ThreadId;
    ULONG32 DumpFlags;
    ULONG32 DumpError;
    ULONG32 ExitStatus;
    ULONG64 CreateTime;
    ULONG64 ExitTime;
    ULONG64 KernelTime;
    ULONG64 UserTime;
    ULONG64 StartAddress;
    ULONG64 Affinity;
} MINIDUMP_THREAD_INFO, *PMINIDUMP_THREAD_INFO;

typedef struct _MINIDUMP_THREAD_INFO_LIST {
    ULONG SizeOfHeader;
    ULONG SizeOfEntry;
    ULONG NumberOfEntries;
} MINIDUMP_THREAD_INFO_LIST, *PMINIDUMP_THREAD_INFO_LIST;


//
// Support for arbitrary user-defined information.
//

typedef struct _MINIDUMP_USER_RECORD {
    ULONG32 Type;
    MINIDUMP_LOCATION_DESCRIPTOR Memory;
} MINIDUMP_USER_RECORD, *PMINIDUMP_USER_RECORD;


typedef struct _MINIDUMP_USER_STREAM {
    ULONG32 Type;
    ULONG BufferSize;
    PVOID Buffer;

} MINIDUMP_USER_STREAM, *PMINIDUMP_USER_STREAM;


typedef struct _MINIDUMP_USER_STREAM_INFORMATION {
    ULONG UserStreamCount;
    PMINIDUMP_USER_STREAM UserStreamArray;
} MINIDUMP_USER_STREAM_INFORMATION, *PMINIDUMP_USER_STREAM_INFORMATION;

//
// Callback support.
//

typedef enum _MINIDUMP_CALLBACK_TYPE {
    ModuleCallback,
    ThreadCallback,
    ThreadExCallback,
    IncludeThreadCallback,
    IncludeModuleCallback,
    MemoryCallback,
    CancelCallback,
    WriteKernelMinidumpCallback,
    KernelMinidumpStatusCallback,
} MINIDUMP_CALLBACK_TYPE;


typedef struct _MINIDUMP_THREAD_CALLBACK {
    ULONG ThreadId;
    HANDLE ThreadHandle;
    CONTEXT Context;
    ULONG SizeOfContext;
    ULONG64 StackBase;
    ULONG64 StackEnd;
} MINIDUMP_THREAD_CALLBACK, *PMINIDUMP_THREAD_CALLBACK;


typedef struct _MINIDUMP_THREAD_EX_CALLBACK {
    ULONG ThreadId;
    HANDLE ThreadHandle;
    CONTEXT Context;
    ULONG SizeOfContext;
    ULONG64 StackBase;
    ULONG64 StackEnd;
    ULONG64 BackingStoreBase;
    ULONG64 BackingStoreEnd;
} MINIDUMP_THREAD_EX_CALLBACK, *PMINIDUMP_THREAD_EX_CALLBACK;


typedef struct _MINIDUMP_INCLUDE_THREAD_CALLBACK {
    ULONG ThreadId;
} MINIDUMP_INCLUDE_THREAD_CALLBACK, *PMINIDUMP_INCLUDE_THREAD_CALLBACK;


typedef enum _THREAD_WRITE_FLAGS {
    ThreadWriteThread            = 0x0001,
    ThreadWriteStack             = 0x0002,
    ThreadWriteContext           = 0x0004,
    ThreadWriteBackingStore      = 0x0008,
    ThreadWriteInstructionWindow = 0x0010,
    ThreadWriteThreadData        = 0x0020,
    ThreadWriteThreadInfo        = 0x0040,
} THREAD_WRITE_FLAGS;

typedef struct _MINIDUMP_MODULE_CALLBACK {
    PWCHAR FullPath;
    ULONG64 BaseOfImage;
    ULONG SizeOfImage;
    ULONG CheckSum;
    ULONG TimeDateStamp;
    VS_FIXEDFILEINFO VersionInfo;
    PVOID CvRecord; 
    ULONG SizeOfCvRecord;
    PVOID MiscRecord;
    ULONG SizeOfMiscRecord;
} MINIDUMP_MODULE_CALLBACK, *PMINIDUMP_MODULE_CALLBACK;


typedef struct _MINIDUMP_INCLUDE_MODULE_CALLBACK {
    ULONG64 BaseOfImage;
} MINIDUMP_INCLUDE_MODULE_CALLBACK, *PMINIDUMP_INCLUDE_MODULE_CALLBACK;


typedef enum _MODULE_WRITE_FLAGS {
    ModuleWriteModule        = 0x0001,
    ModuleWriteDataSeg       = 0x0002,
    ModuleWriteMiscRecord    = 0x0004,
    ModuleWriteCvRecord      = 0x0008,
    ModuleReferencedByMemory = 0x0010,
    ModuleWriteTlsData       = 0x0020,
    ModuleWriteCodeSegs      = 0x0040,
} MODULE_WRITE_FLAGS;


typedef struct _MINIDUMP_CALLBACK_INPUT {
    ULONG ProcessId;
    HANDLE ProcessHandle;
    ULONG CallbackType;
    union {
        HRESULT Status;
        MINIDUMP_THREAD_CALLBACK Thread;
        MINIDUMP_THREAD_EX_CALLBACK ThreadEx;
        MINIDUMP_MODULE_CALLBACK Module;
        MINIDUMP_INCLUDE_THREAD_CALLBACK IncludeThread;
        MINIDUMP_INCLUDE_MODULE_CALLBACK IncludeModule;
    };
} MINIDUMP_CALLBACK_INPUT, *PMINIDUMP_CALLBACK_INPUT;

typedef struct _MINIDUMP_CALLBACK_OUTPUT {
    union {
        ULONG ModuleWriteFlags;
        ULONG ThreadWriteFlags;
        struct {
            ULONG64 MemoryBase;
            ULONG MemorySize;
        };
        struct {
            BOOL CheckCancel;
            BOOL Cancel;
        };
        HANDLE Handle;
    };
} MINIDUMP_CALLBACK_OUTPUT, *PMINIDUMP_CALLBACK_OUTPUT;

        
//
// A normal minidump contains just the information
// necessary to capture stack traces for all of the
// existing threads in a process.
//
// A minidump with data segments includes all of the data
// sections from loaded modules in order to capture
// global variable contents.  This can make the dump much
// larger if many modules have global data.
//
// A minidump with full memory includes all of the accessible
// memory in the process and can be very large.  A minidump
// with full memory always has the raw memory data at the end
// of the dump so that the initial structures in the dump can
// be mapped directly without having to include the raw
// memory information.
//
// Stack and backing store memory can be filtered to remove
// data unnecessary for stack walking.  This can improve
// compression of stacks and also deletes data that may
// be private and should not be stored in a dump.
// Memory can also be scanned to see what modules are
// referenced by stack and backing store memory to allow
// omission of other modules to reduce dump size.
// In either of these modes the ModuleReferencedByMemory flag
// is set for all modules referenced before the base
// module callbacks occur.
//
// On some operating systems a list of modules that were
// recently unloaded is kept in addition to the currently
// loaded module list.  This information can be saved in
// the dump if desired.
//
// Stack and backing store memory can be scanned for referenced
// pages in order to pick up data referenced by locals or other
// stack memory.  This can increase the size of a dump significantly.
//
// Module paths may contain undesired information such as user names
// or other important directory names so they can be stripped.  This
// option reduces the ability to locate the proper image later
// and should only be used in certain situations.
//
// Complete operating system per-process and per-thread information can
// be gathered and stored in the dump.
//
// The virtual address space can be scanned for various types
// of memory to be included in the dump.
//
// Code which is concerned with potentially private information
// getting into the minidump can set a flag that automatically
// modifies all existing and future flags to avoid placing
// unnecessary data in the dump.  Basic data, such as stack
// information, will still be included but optional data, such
// as indirect memory, will not.
//
// When doing a full memory dump it's possible to store all
// of the enumerated memory region descriptive information
// in a memory information stream.
//
// Additional thread information beyond the basic thread
// structure can be collected if desired.
//
// A minidump with code segments includes all of the code
// and code-related sections from loaded modules in order
// to capture executable content.
//
// MiniDumpWithoutManagedState turns off the special
// CLR-driven managed memory gathering.
//

typedef enum _MINIDUMP_TYPE {
    MiniDumpNormal                         = 0x00000000,
    MiniDumpWithDataSegs                   = 0x00000001,
    MiniDumpWithFullMemory                 = 0x00000002,
    MiniDumpWithHandleData                 = 0x00000004,
    MiniDumpFilterMemory                   = 0x00000008,
    MiniDumpScanMemory                     = 0x00000010,
    MiniDumpWithUnloadedModules            = 0x00000020,
    MiniDumpWithIndirectlyReferencedMemory = 0x00000040,
    MiniDumpFilterModulePaths              = 0x00000080,
    MiniDumpWithProcessThreadData          = 0x00000100,
    MiniDumpWithPrivateReadWriteMemory     = 0x00000200,
    MiniDumpWithoutOptionalData            = 0x00000400,
    MiniDumpWithFullMemoryInfo             = 0x00000800,
    MiniDumpWithThreadInfo                 = 0x00001000,
    MiniDumpWithCodeSegs                   = 0x00002000,
    MiniDumpWithoutManagedState            = 0x00004000,
} MINIDUMP_TYPE;


//
// The minidump callback should modify the FieldsToWrite parameter to reflect
// what portions of the specified thread or module should be written to the
// file.
//

typedef
BOOL
(WINAPI * MINIDUMP_CALLBACK_ROUTINE) (
    IN PVOID CallbackParam,
    IN CONST PMINIDUMP_CALLBACK_INPUT CallbackInput,
    IN OUT PMINIDUMP_CALLBACK_OUTPUT CallbackOutput
    );

typedef struct _MINIDUMP_CALLBACK_INFORMATION {
    MINIDUMP_CALLBACK_ROUTINE CallbackRoutine;
    PVOID CallbackParam;
} MINIDUMP_CALLBACK_INFORMATION, *PMINIDUMP_CALLBACK_INFORMATION;



//++
//
// PVOID
// RVA_TO_ADDR(
//     PVOID Mapping,
//     ULONG Rva
//     )
//
// Routine Description:
//
//     Map an RVA that is contained within a mapped file to it's associated
//     flat address.
//
// Arguments:
//
//     Mapping - Base address of mapped file containing the RVA.
//
//     Rva - An Rva to fixup.
//
// Return Values:
//
//     A pointer to the desired data.
//
//--

#define RVA_TO_ADDR(Mapping,Rva) ((PVOID)(((ULONG_PTR) (Mapping)) + (Rva)))

BOOL
WINAPI
MiniDumpWriteDump(
    IN HANDLE hProcess,
    IN DWORD ProcessId,
    IN HANDLE hFile,
    IN MINIDUMP_TYPE DumpType,
    IN CONST PMINIDUMP_EXCEPTION_INFORMATION ExceptionParam, OPTIONAL
    IN CONST PMINIDUMP_USER_STREAM_INFORMATION UserStreamParam, OPTIONAL
    IN CONST PMINIDUMP_CALLBACK_INFORMATION CallbackParam OPTIONAL
    );

BOOL
WINAPI
MiniDumpReadDumpStream(
    IN PVOID BaseOfDump,
    IN ULONG StreamNumber,
    OUT PMINIDUMP_DIRECTORY * Dir, OPTIONAL
    OUT PVOID * StreamPointer, OPTIONAL
    OUT ULONG * StreamSize OPTIONAL
    );

#if defined(_MSC_VER)
#if _MSC_VER >= 800
#if _MSC_VER >= 1200
#pragma warning(pop)
#else
#pragma warning(default:4200)    /* Zero length array */
#pragma warning(default:4201)    /* Nameless struct/union */
#endif
#endif
#endif

#include <poppack.h>

#ifdef __cplusplus
}
#endif


#endif // _DBGHELP_

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