diff options
Diffstat (limited to 'win/tclWin32Dll.c')
| -rw-r--r-- | win/tclWin32Dll.c | 566 |
1 files changed, 495 insertions, 71 deletions
diff --git a/win/tclWin32Dll.c b/win/tclWin32Dll.c index 688fa8d..e5e5202 100644 --- a/win/tclWin32Dll.c +++ b/win/tclWin32Dll.c @@ -12,9 +12,30 @@ */ #include "tclWinInt.h" -#if defined(HAVE_INTRIN_H) -# include <intrin.h> -#endif + +#ifndef TCL_NO_STACK_CHECK +/* + * The following functions implement stack depth checking + */ +typedef struct ThreadSpecificData { + int *stackBound; /* The current stack boundary */ +} ThreadSpecificData; +static Tcl_ThreadDataKey dataKey; +#endif /* TCL_NO_STACK_CHECK */ + +/* + * The following data structures are used when loading the thunking library + * for execing child processes under Win32s. + */ + +typedef DWORD (WINAPI UT32PROC)(LPVOID lpBuff, DWORD dwUserDefined, + LPVOID *lpTranslationList); + +typedef BOOL (WINAPI UTREGISTER)(HANDLE hModule, LPCSTR SixteenBitDLL, + LPCSTR InitName, LPCSTR ProcName, UT32PROC **ThirtyTwoBitThunk, + FARPROC UT32Callback, LPVOID Buff); + +typedef VOID (WINAPI UTUNREGISTER)(HANDLE hModule); /* * The following variables keep track of information about this DLL on a @@ -33,14 +54,150 @@ static int platformId; /* Running under NT, or 95/98? */ #define cpuid __asm __emit 0fh __asm __emit 0a2h #endif -static Tcl_Encoding winTCharEncoding = NULL; +/* + * The following function tables are used to dispatch to either the + * wide-character or multi-byte versions of the operating system calls, + * depending on whether the Unicode calls are available. + */ + +static TclWinProcs asciiProcs = { + 0, + + (BOOL (WINAPI *)(CONST TCHAR *, LPDCB)) BuildCommDCBA, + (TCHAR *(WINAPI *)(TCHAR *)) CharLowerA, + (BOOL (WINAPI *)(CONST TCHAR *, CONST TCHAR *, BOOL)) CopyFileA, + (BOOL (WINAPI *)(CONST TCHAR *, LPSECURITY_ATTRIBUTES)) CreateDirectoryA, + (HANDLE (WINAPI *)(CONST TCHAR *, DWORD, DWORD, SECURITY_ATTRIBUTES *, + DWORD, DWORD, HANDLE)) CreateFileA, + (BOOL (WINAPI *)(CONST TCHAR *, TCHAR *, LPSECURITY_ATTRIBUTES, + LPSECURITY_ATTRIBUTES, BOOL, DWORD, LPVOID, CONST TCHAR *, + LPSTARTUPINFOA, LPPROCESS_INFORMATION)) CreateProcessA, + (BOOL (WINAPI *)(CONST TCHAR *)) DeleteFileA, + (HANDLE (WINAPI *)(CONST TCHAR *, WIN32_FIND_DATAT *)) FindFirstFileA, + (BOOL (WINAPI *)(HANDLE, WIN32_FIND_DATAT *)) FindNextFileA, + (BOOL (WINAPI *)(WCHAR *, LPDWORD)) GetComputerNameA, + (DWORD (WINAPI *)(DWORD, WCHAR *)) GetCurrentDirectoryA, + (DWORD (WINAPI *)(CONST TCHAR *)) GetFileAttributesA, + (DWORD (WINAPI *)(CONST TCHAR *, DWORD nBufferLength, WCHAR *, + TCHAR **)) GetFullPathNameA, + (DWORD (WINAPI *)(HMODULE, WCHAR *, int)) GetModuleFileNameA, + (DWORD (WINAPI *)(CONST TCHAR *, WCHAR *, DWORD)) GetShortPathNameA, + (UINT (WINAPI *)(CONST TCHAR *, CONST TCHAR *, UINT uUnique, + WCHAR *)) GetTempFileNameA, + (DWORD (WINAPI *)(DWORD, WCHAR *)) GetTempPathA, + (BOOL (WINAPI *)(CONST TCHAR *, WCHAR *, DWORD, LPDWORD, LPDWORD, LPDWORD, + WCHAR *, DWORD)) GetVolumeInformationA, + (HINSTANCE (WINAPI *)(CONST TCHAR *, HANDLE, DWORD)) LoadLibraryExA, + (TCHAR (WINAPI *)(WCHAR *, CONST TCHAR *)) lstrcpyA, + (BOOL (WINAPI *)(CONST TCHAR *, CONST TCHAR *)) MoveFileA, + (BOOL (WINAPI *)(CONST TCHAR *)) RemoveDirectoryA, + (DWORD (WINAPI *)(CONST TCHAR *, CONST TCHAR *, CONST TCHAR *, DWORD, + WCHAR *, TCHAR **)) SearchPathA, + (BOOL (WINAPI *)(CONST TCHAR *)) SetCurrentDirectoryA, + (BOOL (WINAPI *)(CONST TCHAR *, DWORD)) SetFileAttributesA, + /* + * The three NULL function pointers will only be set when + * Tcl_FindExecutable is called. If you don't ever call that function, the + * application will crash whenever WinTcl tries to call functions through + * these null pointers. That is not a bug in Tcl - Tcl_FindExecutable is + * mandatory in recent Tcl releases. + */ + + NULL, + NULL, + /* deleted (int (__cdecl*)(CONST TCHAR *, struct _utimbuf *)) _utime, */ + NULL, + NULL, + /* getLongPathNameProc */ + NULL, + /* Security SDK - not available on 95,98,ME */ + NULL, NULL, NULL, NULL, NULL, NULL, + /* ReadConsole and WriteConsole */ + (BOOL (WINAPI *)(HANDLE, LPVOID, DWORD, LPDWORD, LPVOID)) ReadConsoleA, + (BOOL (WINAPI *)(HANDLE, const VOID*, DWORD, LPDWORD, LPVOID)) WriteConsoleA, + (BOOL (WINAPI *)(LPTSTR, LPDWORD)) GetUserNameA +}; + +static TclWinProcs unicodeProcs = { + 1, + + (BOOL (WINAPI *)(CONST TCHAR *, LPDCB)) BuildCommDCBW, + (TCHAR *(WINAPI *)(TCHAR *)) CharLowerW, + (BOOL (WINAPI *)(CONST TCHAR *, CONST TCHAR *, BOOL)) CopyFileW, + (BOOL (WINAPI *)(CONST TCHAR *, LPSECURITY_ATTRIBUTES)) CreateDirectoryW, + (HANDLE (WINAPI *)(CONST TCHAR *, DWORD, DWORD, SECURITY_ATTRIBUTES *, + DWORD, DWORD, HANDLE)) CreateFileW, + (BOOL (WINAPI *)(CONST TCHAR *, TCHAR *, LPSECURITY_ATTRIBUTES, + LPSECURITY_ATTRIBUTES, BOOL, DWORD, LPVOID, CONST TCHAR *, + LPSTARTUPINFOA, LPPROCESS_INFORMATION)) CreateProcessW, + (BOOL (WINAPI *)(CONST TCHAR *)) DeleteFileW, + (HANDLE (WINAPI *)(CONST TCHAR *, WIN32_FIND_DATAT *)) FindFirstFileW, + (BOOL (WINAPI *)(HANDLE, WIN32_FIND_DATAT *)) FindNextFileW, + (BOOL (WINAPI *)(WCHAR *, LPDWORD)) GetComputerNameW, + (DWORD (WINAPI *)(DWORD, WCHAR *)) GetCurrentDirectoryW, + (DWORD (WINAPI *)(CONST TCHAR *)) GetFileAttributesW, + (DWORD (WINAPI *)(CONST TCHAR *, DWORD nBufferLength, WCHAR *, + TCHAR **)) GetFullPathNameW, + (DWORD (WINAPI *)(HMODULE, WCHAR *, int)) GetModuleFileNameW, + (DWORD (WINAPI *)(CONST TCHAR *, WCHAR *, DWORD)) GetShortPathNameW, + (UINT (WINAPI *)(CONST TCHAR *, CONST TCHAR *, UINT uUnique, + WCHAR *)) GetTempFileNameW, + (DWORD (WINAPI *)(DWORD, WCHAR *)) GetTempPathW, + (BOOL (WINAPI *)(CONST TCHAR *, WCHAR *, DWORD, LPDWORD, LPDWORD, LPDWORD, + WCHAR *, DWORD)) GetVolumeInformationW, + (HINSTANCE (WINAPI *)(CONST TCHAR *, HANDLE, DWORD)) LoadLibraryExW, + (TCHAR (WINAPI *)(WCHAR *, CONST TCHAR *)) lstrcpyW, + (BOOL (WINAPI *)(CONST TCHAR *, CONST TCHAR *)) MoveFileW, + (BOOL (WINAPI *)(CONST TCHAR *)) RemoveDirectoryW, + (DWORD (WINAPI *)(CONST TCHAR *, CONST TCHAR *, CONST TCHAR *, DWORD, + WCHAR *, TCHAR **)) SearchPathW, + (BOOL (WINAPI *)(CONST TCHAR *)) SetCurrentDirectoryW, + (BOOL (WINAPI *)(CONST TCHAR *, DWORD)) SetFileAttributesW, + + /* + * The three NULL function pointers will only be set when + * Tcl_FindExecutable is called. If you don't ever call that function, the + * application will crash whenever WinTcl tries to call functions through + * these null pointers. That is not a bug in Tcl - Tcl_FindExecutable is + * mandatory in recent Tcl releases. + */ + + NULL, + NULL, + /* deleted (int (__cdecl*)(CONST TCHAR *, struct _utimbuf *)) _wutime, */ + NULL, + NULL, + /* getLongPathNameProc */ + NULL, + /* Security SDK - will be filled in on NT,XP,2000,2003 */ + NULL, NULL, NULL, NULL, NULL, NULL, + /* ReadConsole and WriteConsole */ + (BOOL (WINAPI *)(HANDLE, LPVOID, DWORD, LPDWORD, LPVOID)) ReadConsoleW, + (BOOL (WINAPI *)(HANDLE, const VOID*, DWORD, LPDWORD, LPVOID)) WriteConsoleW, + (BOOL (WINAPI *)(LPTSTR, LPDWORD)) GetUserNameW +}; + +TclWinProcs *tclWinProcs; +static Tcl_Encoding tclWinTCharEncoding; + +#ifdef HAVE_NO_SEH +/* + * Need to add noinline flag to DllMain declaration so that gcc -O3 does not + * inline asm code into DllEntryPoint and cause a compile time error because + * of redefined local labels. + */ + +BOOL APIENTRY DllMain(HINSTANCE hInst, DWORD reason, + LPVOID reserved) __attribute__ ((noinline)); +#else /* * The following declaration is for the VC++ DLL entry point. */ BOOL APIENTRY DllMain(HINSTANCE hInst, DWORD reason, LPVOID reserved); +#endif /* HAVE_NO_SEH */ /* * The following structure and linked list is to allow us to map between @@ -49,8 +206,8 @@ BOOL APIENTRY DllMain(HINSTANCE hInst, DWORD reason, */ typedef struct MountPointMap { - const TCHAR *volumeName; /* Native wide string volume name. */ - TCHAR driveLetter; /* Drive letter corresponding to the volume + CONST WCHAR *volumeName; /* Native wide string volume name. */ + char driveLetter; /* Drive letter corresponding to the volume * name. */ struct MountPointMap *nextPtr; /* Pointer to next structure in list, or @@ -69,7 +226,9 @@ TCL_DECLARE_MUTEX(mountPointMap) * We will need this below. */ -#ifdef _WIN32 +extern Tcl_FSDupInternalRepProc TclNativeDupInternalRep; + +#ifdef __WIN32__ #ifndef STATIC_BUILD /* @@ -111,7 +270,10 @@ DllEntryPoint( * TRUE on sucess, FALSE on failure. * * Side effects: - * Initializes most rudimentary Windows bits. + * Establishes 32-to-16 bit thunk and initializes sockets library. This + * might call some sycronization functions, but MSDN documentation + * states: "Waiting on synchronization objects in DllMain can cause a + * deadlock." * *---------------------------------------------------------------------- */ @@ -122,22 +284,111 @@ DllMain( DWORD reason, /* Reason this function is being called. */ LPVOID reserved) /* Not used. */ { +#if defined(HAVE_NO_SEH) && !defined(_WIN64) + TCLEXCEPTION_REGISTRATION registration; +#endif + switch (reason) { case DLL_PROCESS_ATTACH: DisableThreadLibraryCalls(hInst); TclWinInit(hInst); return TRUE; + case DLL_PROCESS_DETACH: /* - * DLL_PROCESS_DETACH is unnecessary as the user should call - * Tcl_Finalize explicitly before unloading Tcl. + * Protect the call to Tcl_Finalize. The OS could be unloading us from + * an exception handler and the state of the stack might be unstable. */ + +#if defined(HAVE_NO_SEH) && !defined(_WIN64) + __asm__ __volatile__ ( + + /* + * Construct an TCLEXCEPTION_REGISTRATION to protect the call to + * Tcl_Finalize + */ + + "leal %[registration], %%edx" "\n\t" + "movl %%fs:0, %%eax" "\n\t" + "movl %%eax, 0x0(%%edx)" "\n\t" /* link */ + "leal 1f, %%eax" "\n\t" + "movl %%eax, 0x4(%%edx)" "\n\t" /* handler */ + "movl %%ebp, 0x8(%%edx)" "\n\t" /* ebp */ + "movl %%esp, 0xc(%%edx)" "\n\t" /* esp */ + "movl %[error], 0x10(%%edx)" "\n\t" /* status */ + + /* + * Link the TCLEXCEPTION_REGISTRATION on the chain + */ + + "movl %%edx, %%fs:0" "\n\t" + + /* + * Call Tcl_Finalize + */ + + "call _Tcl_Finalize" "\n\t" + + /* + * Come here on a normal exit. Recover the TCLEXCEPTION_REGISTRATION + * and store a TCL_OK status + */ + + "movl %%fs:0, %%edx" "\n\t" + "movl %[ok], %%eax" "\n\t" + "movl %%eax, 0x10(%%edx)" "\n\t" + "jmp 2f" "\n" + + /* + * Come here on an exception. Get the TCLEXCEPTION_REGISTRATION that + * we previously put on the chain. + */ + + "1:" "\t" + "movl %%fs:0, %%edx" "\n\t" + "movl 0x8(%%edx), %%edx" "\n" + + + /* + * Come here however we exited. Restore context from the + * TCLEXCEPTION_REGISTRATION in case the stack is unbalanced. + */ + + "2:" "\t" + "movl 0xc(%%edx), %%esp" "\n\t" + "movl 0x8(%%edx), %%ebp" "\n\t" + "movl 0x0(%%edx), %%eax" "\n\t" + "movl %%eax, %%fs:0" "\n\t" + + : + /* No outputs */ + : + [registration] "m" (registration), + [ok] "i" (TCL_OK), + [error] "i" (TCL_ERROR) + : + "%eax", "%ebx", "%ecx", "%edx", "%esi", "%edi", "memory" + ); + +#else +#ifndef HAVE_NO_SEH + __try { +#endif + Tcl_Finalize(); +#ifndef HAVE_NO_SEH + } __except (EXCEPTION_EXECUTE_HANDLER) { + /* empty handler body. */ + } +#endif +#endif + + break; } return TRUE; } #endif /* !STATIC_BUILD */ -#endif /* _WIN32 */ +#endif /* __WIN32__ */ /* *---------------------------------------------------------------------- @@ -189,18 +440,15 @@ TclWinInit( platformId = os.dwPlatformId; /* - * We no longer support Win32s or Win9x, so just in case someone manages - * to get a runtime there, make sure they know that. + * We no longer support Win32s, so just in case someone manages to get a + * runtime there, make sure they know that. */ if (platformId == VER_PLATFORM_WIN32s) { Tcl_Panic("Win32s is not a supported platform"); } - if (platformId == VER_PLATFORM_WIN32_WINDOWS) { - Tcl_Panic("Windows 9x is not a supported platform"); - } - TclWinResetInterfaces(); + tclWinProcs = &asciiProcs; } /* @@ -213,10 +461,9 @@ TclWinInit( * * Results: * The return value is one of: - * VER_PLATFORM_WIN32s Win32s on Windows 3.1 (not supported) - * VER_PLATFORM_WIN32_WINDOWS Win32 on Windows 95, 98, ME (not supported) - * VER_PLATFORM_WIN32_NT Win32 on Windows NT, 2000, XP - * VER_PLATFORM_WIN32_CE Win32 on Windows CE + * VER_PLATFORM_WIN32s Win32s on Windows 3.1. (not supported) + * VER_PLATFORM_WIN32_WINDOWS Win32 on Windows 95, 98, ME. + * VER_PLATFORM_WIN32_NT Win32 on Windows NT, 2000, XP * * Side effects: * None. @@ -262,11 +509,95 @@ TclWinNoBackslash( } /* + *---------------------------------------------------------------------- + * + * TclpGetStackParams -- + * + * Determine the stack params for the current thread: in which + * direction does the stack grow, and what is the stack lower (resp. + * upper) bound for safe invocation of a new command? This is used to + * cache the values needed for an efficient computation of + * TclpCheckStackSpace() when the interp is known. + * + * Results: + * Returns 1 if the stack grows down, in which case a stack lower bound + * is stored at stackBoundPtr. If the stack grows up, 0 is returned and + * an upper bound is stored at stackBoundPtr. If a bound cannot be + * determined NULL is stored at stackBoundPtr. + * + *---------------------------------------------------------------------- + */ + +#ifndef TCL_NO_STACK_CHECK +int +TclpGetCStackParams( + int **stackBoundPtr) +{ + ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey); + SYSTEM_INFO si; /* The system information, used to + * determine the page size */ + MEMORY_BASIC_INFORMATION mbi; + /* The information about the memory + * area in which the stack resides */ + + if (!tsdPtr->stackBound + || ((UINT_PTR)&tsdPtr < (UINT_PTR)tsdPtr->stackBound)) { + + /* + * Either we haven't determined the stack bound in this thread, + * or else we've overflowed the bound that we previously + * determined. We need to find a new stack bound from + * Windows. + */ + + GetSystemInfo(&si); + if (VirtualQuery((LPCVOID) &tsdPtr, &mbi, sizeof(mbi)) == 0) { + + /* For some reason, the system didn't let us query the + * stack size. Nevertheless, we got here and haven't + * blown up yet. Don't update the calculated stack bound. + * If there is no calculated stack bound yet, set it to + * the base of the current page of stack. */ + + if (!tsdPtr->stackBound) { + tsdPtr->stackBound = + (int*) ((UINT_PTR)(&tsdPtr) + & ~ (UINT_PTR)(si.dwPageSize - 1)); + } + + } else { + + /* The allocation base of the stack segment has to be advanced + * by one page (to allow for the guard page maintained in the + * C runtime) and then by TCL_WIN_STACK_THRESHOLD (to allow + * for the amount of stack that Tcl needs). + */ + + tsdPtr->stackBound = + (int*) ((UINT_PTR)(mbi.AllocationBase) + + (UINT_PTR)(si.dwPageSize) + + TCL_WIN_STACK_THRESHOLD); + } + } + *stackBoundPtr = tsdPtr->stackBound; + return 1; +} +#endif + + +/* *--------------------------------------------------------------------------- * - * TclpSetInterfaces -- + * TclWinSetInterfaces -- + * + * A helper proc that allows the test library to change the tclWinProcs + * structure to dispatch to either the wide-character or multi-byte + * versions of the operating system calls, depending on whether Unicode + * is the system encoding. * - * A helper proc that initializes winTCharEncoding. + * As well as this, we can also try to load in some additional procs + * which may/may not be present depending on the current Windows version + * (e.g. Win95 will not have the procs below). * * Results: * None. @@ -278,18 +609,115 @@ TclWinNoBackslash( */ void -TclpSetInterfaces(void) +TclWinSetInterfaces( + int wide) /* Non-zero to use wide interfaces, 0 + * otherwise. */ { - TclWinResetInterfaces(); - winTCharEncoding = Tcl_GetEncoding(NULL, "unicode"); + Tcl_FreeEncoding(tclWinTCharEncoding); + + if (wide) { + tclWinProcs = &unicodeProcs; + tclWinTCharEncoding = Tcl_GetEncoding(NULL, "unicode"); + if (tclWinProcs->getFileAttributesExProc == NULL) { + HINSTANCE hInstance = LoadLibraryA("kernel32"); + if (hInstance != NULL) { + tclWinProcs->getFileAttributesExProc = + (BOOL (WINAPI *)(CONST TCHAR *, GET_FILEEX_INFO_LEVELS, + LPVOID)) GetProcAddress(hInstance, + "GetFileAttributesExW"); + tclWinProcs->createHardLinkProc = + (BOOL (WINAPI *)(CONST TCHAR *, CONST TCHAR*, + LPSECURITY_ATTRIBUTES)) GetProcAddress(hInstance, + "CreateHardLinkW"); + tclWinProcs->findFirstFileExProc = + (HANDLE (WINAPI *)(CONST TCHAR*, UINT, LPVOID, UINT, + LPVOID, DWORD)) GetProcAddress(hInstance, + "FindFirstFileExW"); + tclWinProcs->getVolumeNameForVMPProc = + (BOOL (WINAPI *)(CONST TCHAR*, TCHAR*, + DWORD)) GetProcAddress(hInstance, + "GetVolumeNameForVolumeMountPointW"); + tclWinProcs->getLongPathNameProc = + (DWORD (WINAPI *)(CONST TCHAR*, TCHAR*, + DWORD)) GetProcAddress(hInstance, "GetLongPathNameW"); + FreeLibrary(hInstance); + } + hInstance = LoadLibraryA("advapi32"); + if (hInstance != NULL) { + tclWinProcs->getFileSecurityProc = (BOOL (WINAPI *)( + LPCTSTR lpFileName, + SECURITY_INFORMATION RequestedInformation, + PSECURITY_DESCRIPTOR pSecurityDescriptor, + DWORD nLength, LPDWORD lpnLengthNeeded)) + GetProcAddress(hInstance, "GetFileSecurityW"); + tclWinProcs->impersonateSelfProc = (BOOL (WINAPI *) ( + SECURITY_IMPERSONATION_LEVEL ImpersonationLevel)) + GetProcAddress(hInstance, "ImpersonateSelf"); + tclWinProcs->openThreadTokenProc = (BOOL (WINAPI *) ( + HANDLE ThreadHandle, DWORD DesiredAccess, + BOOL OpenAsSelf, PHANDLE TokenHandle)) + GetProcAddress(hInstance, "OpenThreadToken"); + tclWinProcs->revertToSelfProc = (BOOL (WINAPI *) (void)) + GetProcAddress(hInstance, "RevertToSelf"); + tclWinProcs->mapGenericMaskProc = (VOID (WINAPI *) ( + PDWORD AccessMask, PGENERIC_MAPPING GenericMapping)) + GetProcAddress(hInstance, "MapGenericMask"); + tclWinProcs->accessCheckProc = (BOOL (WINAPI *)( + PSECURITY_DESCRIPTOR pSecurityDescriptor, + HANDLE ClientToken, DWORD DesiredAccess, + PGENERIC_MAPPING GenericMapping, + PPRIVILEGE_SET PrivilegeSet, + LPDWORD PrivilegeSetLength, LPDWORD GrantedAccess, + LPBOOL AccessStatus)) GetProcAddress(hInstance, + "AccessCheck"); + FreeLibrary(hInstance); + } + } + } else { + tclWinProcs = &asciiProcs; + tclWinTCharEncoding = NULL; + if (tclWinProcs->getFileAttributesExProc == NULL) { + HINSTANCE hInstance = LoadLibraryA("kernel32"); + if (hInstance != NULL) { + tclWinProcs->getFileAttributesExProc = + (BOOL (WINAPI *)(CONST TCHAR *, GET_FILEEX_INFO_LEVELS, + LPVOID)) GetProcAddress(hInstance, + "GetFileAttributesExA"); + tclWinProcs->createHardLinkProc = + (BOOL (WINAPI *)(CONST TCHAR *, CONST TCHAR*, + LPSECURITY_ATTRIBUTES)) GetProcAddress(hInstance, + "CreateHardLinkA"); + tclWinProcs->findFirstFileExProc = NULL; + tclWinProcs->getLongPathNameProc = NULL; + /* + * The 'findFirstFileExProc' function exists on some of + * 95/98/ME, but it seems not to work as anticipated. + * Therefore we don't set this function pointer. The relevant + * code will fall back on a slower approach using the normal + * findFirstFileProc. + * + * (HANDLE (WINAPI *)(CONST TCHAR*, UINT, + * LPVOID, UINT, LPVOID, DWORD)) GetProcAddress(hInstance, + * "FindFirstFileExA"); + */ + tclWinProcs->getVolumeNameForVMPProc = + (BOOL (WINAPI *)(CONST TCHAR*, TCHAR*, + DWORD)) GetProcAddress(hInstance, + "GetVolumeNameForVolumeMountPointA"); + FreeLibrary(hInstance); + } + } + } } /* *--------------------------------------------------------------------------- * - * TclWinEncodingsCleanup -- + * TclWinResetInterfaceEncodings -- * - * Called during finalization to free up any encodings we use. + * Called during finalization to free up any encodings we use. The + * tclWinProcs-> look up table is still ok to use after this call, + * provided no encoding conversion is required. * * We also clean up any memory allocated in our mount point map which is * used to follow certain kinds of symlinks. That code should never be @@ -305,11 +733,13 @@ TclpSetInterfaces(void) */ void -TclWinEncodingsCleanup(void) +TclWinResetInterfaceEncodings(void) { MountPointMap *dlIter, *dlIter2; - - TclWinResetInterfaces(); + if (tclWinTCharEncoding != NULL) { + Tcl_FreeEncoding(tclWinTCharEncoding); + tclWinTCharEncoding = NULL; + } /* * Clean up the mount point map. @@ -319,8 +749,8 @@ TclWinEncodingsCleanup(void) dlIter = driveLetterLookup; while (dlIter != NULL) { dlIter2 = dlIter->nextPtr; - ckfree(dlIter->volumeName); - ckfree(dlIter); + ckfree((char*)dlIter->volumeName); + ckfree((char*)dlIter); dlIter = dlIter2; } Tcl_MutexUnlock(&mountPointMap); @@ -332,6 +762,8 @@ TclWinEncodingsCleanup(void) * TclWinResetInterfaces -- * * Called during finalization to reset us to a safe state for reuse. + * After this call, it is best not to use the tclWinProcs-> look up table + * since it is likely to be different to what is expected. * * Results: * None. @@ -344,10 +776,7 @@ TclWinEncodingsCleanup(void) void TclWinResetInterfaces(void) { - if (winTCharEncoding != NULL) { - Tcl_FreeEncoding(winTCharEncoding); - winTCharEncoding = NULL; - } + tclWinProcs = &asciiProcs; } /* @@ -374,11 +803,11 @@ TclWinResetInterfaces(void) char TclWinDriveLetterForVolMountPoint( - const TCHAR *mountPoint) + CONST WCHAR *mountPoint) { MountPointMap *dlIter, *dlPtr2; - TCHAR Target[55]; /* Target of mount at mount point */ - TCHAR drive[4] = TEXT("A:\\"); + WCHAR Target[55]; /* Target of mount at mount point */ + WCHAR drive[4] = { L'A', L':', L'\\', L'\0' }; /* * Detect the volume mounted there. Unfortunately, there is no simple way @@ -389,28 +818,28 @@ TclWinDriveLetterForVolMountPoint( Tcl_MutexLock(&mountPointMap); dlIter = driveLetterLookup; while (dlIter != NULL) { - if (_tcscmp(dlIter->volumeName, mountPoint) == 0) { + if (wcscmp(dlIter->volumeName, mountPoint) == 0) { /* * We need to check whether this information is still valid, since * either the user or various programs could have adjusted the * mount points on the fly. */ - drive[0] = (TCHAR) dlIter->driveLetter; + drive[0] = L'A' + (dlIter->driveLetter - 'A'); /* * Try to read the volume mount point and see where it points. */ - if (GetVolumeNameForVolumeMountPoint(drive, - Target, 55) != 0) { - if (_tcscmp(dlIter->volumeName, Target) == 0) { + if ((*tclWinProcs->getVolumeNameForVMPProc)((TCHAR*)drive, + (TCHAR*)Target, 55) != 0) { + if (wcscmp((WCHAR*)dlIter->volumeName, Target) == 0) { /* * Nothing has changed. */ Tcl_MutexUnlock(&mountPointMap); - return (char) dlIter->driveLetter; + return dlIter->driveLetter; } } @@ -437,8 +866,8 @@ TclWinDriveLetterForVolMountPoint( * Now dlPtr2 points to the structure to free. */ - ckfree(dlPtr2->volumeName); - ckfree(dlPtr2); + ckfree((char*)dlPtr2->volumeName); + ckfree((char*)dlPtr2); /* * Restart the loop - we could try to be clever and continue half @@ -461,23 +890,23 @@ TclWinDriveLetterForVolMountPoint( * Try to read the volume mount point and see where it points. */ - if (GetVolumeNameForVolumeMountPoint(drive, - Target, 55) != 0) { + if ((*tclWinProcs->getVolumeNameForVMPProc)((TCHAR*)drive, + (TCHAR*)Target, 55) != 0) { int alreadyStored = 0; for (dlIter = driveLetterLookup; dlIter != NULL; dlIter = dlIter->nextPtr) { - if (_tcscmp(dlIter->volumeName, Target) == 0) { + if (wcscmp((WCHAR*)dlIter->volumeName, Target) == 0) { alreadyStored = 1; break; } } if (!alreadyStored) { - dlPtr2 = ckalloc(sizeof(MountPointMap)); + dlPtr2 = (MountPointMap *) ckalloc(sizeof(MountPointMap)); dlPtr2->volumeName = TclNativeDupInternalRep(Target); - dlPtr2->driveLetter = (char) drive[0]; + dlPtr2->driveLetter = 'A' + (drive[0] - L'A'); dlPtr2->nextPtr = driveLetterLookup; - driveLetterLookup = dlPtr2; + driveLetterLookup = dlPtr2; } } } @@ -488,9 +917,9 @@ TclWinDriveLetterForVolMountPoint( for (dlIter = driveLetterLookup; dlIter != NULL; dlIter = dlIter->nextPtr) { - if (_tcscmp(dlIter->volumeName, mountPoint) == 0) { + if (wcscmp(dlIter->volumeName, mountPoint) == 0) { Tcl_MutexUnlock(&mountPointMap); - return (char) dlIter->driveLetter; + return dlIter->driveLetter; } } @@ -499,11 +928,11 @@ TclWinDriveLetterForVolMountPoint( * that fact and store '-1' so we don't have to look it up each time. */ - dlPtr2 = ckalloc(sizeof(MountPointMap)); - dlPtr2->volumeName = TclNativeDupInternalRep((ClientData) mountPoint); + dlPtr2 = (MountPointMap*) ckalloc(sizeof(MountPointMap)); + dlPtr2->volumeName = TclNativeDupInternalRep((ClientData)mountPoint); dlPtr2->driveLetter = -1; dlPtr2->nextPtr = driveLetterLookup; - driveLetterLookup = dlPtr2; + driveLetterLookup = dlPtr2; Tcl_MutexUnlock(&mountPointMap); return -1; } @@ -560,27 +989,27 @@ TclWinDriveLetterForVolMountPoint( TCHAR * Tcl_WinUtfToTChar( - const char *string, /* Source string in UTF-8. */ + CONST char *string, /* Source string in UTF-8. */ int len, /* Source string length in bytes, or < 0 for * strlen(). */ Tcl_DString *dsPtr) /* Uninitialized or free DString in which the * converted string is stored. */ { - return (TCHAR *) Tcl_UtfToExternalDString(winTCharEncoding, + return (TCHAR *) Tcl_UtfToExternalDString(tclWinTCharEncoding, string, len, dsPtr); } char * Tcl_WinTCharToUtf( - const TCHAR *string, /* Source string in Unicode when running NT, + CONST TCHAR *string, /* Source string in Unicode when running NT, * ANSI when running 95. */ int len, /* Source string length in bytes, or < 0 for * platform-specific string length. */ Tcl_DString *dsPtr) /* Uninitialized or free DString in which the * converted string is stored. */ { - return Tcl_ExternalToUtfDString(winTCharEncoding, - (const char *) string, len, dsPtr); + return Tcl_ExternalToUtfDString(tclWinTCharEncoding, + (CONST char *) string, len, dsPtr); } /* @@ -608,16 +1037,11 @@ TclWinCPUID( { int status = TCL_ERROR; -#if defined(HAVE_INTRIN_H) && defined(_WIN64) - - __cpuid(regsPtr, index); - status = TCL_OK; - -#elif defined(__GNUC__) +#if defined(__GNUC__) # if defined(_WIN64) /* * Execute the CPUID instruction with the given index, and store results - * off 'regPtr'. + * off 'regsPtr'. */ __asm__ __volatile__( |