MODULE_SCOPE void
TclpUnloadFile(
Tcl_LoadHandle loadHandle) /* loadHandle returned by a previous call to
* TclpDlopen(). The loadHandle is a token
* that represents the loaded file. */
{
Tcl_DyldLoadHandle *dyldLoadHandle = (Tcl_DyldLoadHandle *) loadHandle;
#if TCL_DYLD_USE_DLFCN
if (dyldLoadHandle->dlHandle) {
int result;
result = dlclose(dyldLoadHandle->dlHandle);
if (!result) {
TclLoadDbgMsg("dlclose() successful");
} else {
TclLoadDbgMsg("dlclose() failed: %s", dlerror());
}
} else
#endif /* TCL_DYLD_USE_DLFCN */
{
#if TCL_DYLD_USE_NSMODULE || defined(TCL_LOAD_FROM_MEMORY)
Tcl_DyldModuleHandle *modulePtr = dyldLoadHandle->modulePtr;
while (modulePtr != NULL) {
void *ptr;
bool result;
result = NSUnLinkModule(modulePtr->module,
NSUNLINKMODULE_OPTION_RESET_LAZY_REFERENCES);
if (result) {
TclLoadDbgMsg("NSUnLinkModule() successful");
} else {
TclLoadDbgMsg("NSUnLinkModule() failed");
}
ptr = modulePtr;
modulePtr = modulePtr->nextPtr;
ckfree(ptr);
}
#endif /* TCL_DYLD_USE_NSMODULE */
}
ckfree((char*) dyldLoadHandle);
}
static short
OpenResourceMap(
CFBundleRef bundleRef)
{
static int initialized = FALSE;
static short (*openresourcemap)(CFBundleRef) = NULL;
if (!initialized) {
#if TCL_DYLD_USE_DLFCN
#if MAC_OS_X_VERSION_MIN_REQUIRED < 1040
if (tclMacOSXDarwinRelease >= 8)
#endif
{
openresourcemap = dlsym(RTLD_NEXT,
"CFBundleOpenBundleResourceMap");
#ifdef TCL_DEBUG_LOAD
if (!openresourcemap) {
const char *errMsg = dlerror();
TclLoadDbgMsg("dlsym() failed: %s", errMsg);
}
#endif /* TCL_DEBUG_LOAD */
}
if (!openresourcemap)
#endif /* TCL_DYLD_USE_DLFCN */
{
#if TCL_DYLD_USE_NSMODULE
if (NSIsSymbolNameDefinedWithHint(
"_CFBundleOpenBundleResourceMap", "CoreFoundation")) {
NSSymbol nsSymbol = NSLookupAndBindSymbolWithHint(
"_CFBundleOpenBundleResourceMap", "CoreFoundation");
if (nsSymbol) {
openresourcemap = NSAddressOfSymbol(nsSymbol);
}
}
#endif /* TCL_DYLD_USE_NSMODULE */
}
initialized = TRUE;
}
if (openresourcemap) {
return openresourcemap(bundleRef);
}
return -1;
}
int
Tcl_MacOSXOpenVersionedBundleResources(
Tcl_Interp *interp,
const char *bundleName,
const char *bundleVersion,
int hasResourceFile,
int maxPathLen,
char *libraryPath)
{
#ifdef HAVE_COREFOUNDATION
CFBundleRef bundleRef, versionedBundleRef = NULL;
CFStringRef bundleNameRef;
CFURLRef libURL;
libraryPath[0] = '\0';
bundleNameRef = CFStringCreateWithCString(NULL, bundleName,
kCFStringEncodingUTF8);
bundleRef = CFBundleGetBundleWithIdentifier(bundleNameRef);
CFRelease(bundleNameRef);
if (bundleVersion && bundleRef) {
/*
* Create bundle from bundleVersion subdirectory of 'Versions'.
*/
CFURLRef bundleURL = CFBundleCopyBundleURL(bundleRef);
if (bundleURL) {
CFStringRef bundleVersionRef = CFStringCreateWithCString(NULL,
bundleVersion, kCFStringEncodingUTF8);
if (bundleVersionRef) {
CFStringRef bundleTailRef = CFURLCopyLastPathComponent(
bundleURL);
if (bundleTailRef) {
if (CFStringCompare(bundleTailRef, bundleVersionRef, 0) ==
kCFCompareEqualTo) {
versionedBundleRef = (CFBundleRef) CFRetain(bundleRef);
}
CFRelease(bundleTailRef);
}
if (!versionedBundleRef) {
CFURLRef versURL = CFURLCreateCopyAppendingPathComponent(
NULL, bundleURL, CFSTR("Versions"), TRUE);
if (versURL) {
CFURLRef versionedBundleURL =
CFURLCreateCopyAppendingPathComponent(
NULL, versURL, bundleVersionRef, TRUE);
if (versionedBundleURL) {
versionedBundleRef = CFBundleCreate(NULL,
versionedBundleURL);
CFRelease(versionedBundleURL);
}
CFRelease(versURL);
}
}
CFRelease(bundleVersionRef);
}
CFRelease(bundleURL);
}
if (versionedBundleRef) {
bundleRef = versionedBundleRef;
}
}
if (bundleRef) {
if (hasResourceFile) {
/*
* Dynamically acquire address for CFBundleOpenBundleResourceMap
* symbol, since it is only present in full CoreFoundation on Mac
* OS X and not in CFLite on pure Darwin.
*/
static int initialized = FALSE;
static short (*openresourcemap)(CFBundleRef) = NULL;
if (!initialized) {
#if TCL_DYLD_USE_DLFCN
#if MAC_OS_X_VERSION_MIN_REQUIRED < 1040
if (tclMacOSXDarwinRelease >= 8)
#endif
{
const char *errMsg = nil;
openresourcemap = dlsym(RTLD_NEXT,
"CFBundleOpenBundleResourceMap");
if (!openresourcemap) {
errMsg = dlerror();
TclLoadDbgMsg("dlsym() failed: %s", errMsg);
}
}
if (!openresourcemap)
#endif
{
#if TCL_DYLD_USE_NSMODULE
NSSymbol nsSymbol = NULL;
if (NSIsSymbolNameDefinedWithHint(
"_CFBundleOpenBundleResourceMap",
"CoreFoundation")) {
nsSymbol = NSLookupAndBindSymbolWithHint(
"_CFBundleOpenBundleResourceMap",
"CoreFoundation");
if (nsSymbol) {
openresourcemap = NSAddressOfSymbol(nsSymbol);
}
}
#endif
}
initialized = TRUE;
}
if (openresourcemap) {
short refNum;
refNum = openresourcemap(bundleRef);
}
}
libURL = CFBundleCopyResourceURL(bundleRef, CFSTR("Scripts"),
NULL, NULL);
if (libURL) {
/*
* FIXME: This is a quick fix, it is probably not right for
* internationalization.
*/
CFURLGetFileSystemRepresentation(libURL, TRUE,
(unsigned char*) libraryPath, maxPathLen);
CFRelease(libURL);
}
if (versionedBundleRef) {
CFRelease(versionedBundleRef);
}
}
if (libraryPath[0]) {
return TCL_OK;
} else {
return TCL_ERROR;
}
#else /* HAVE_COREFOUNDATION */
return TCL_ERROR;
#endif /* HAVE_COREFOUNDATION */
}
MODULE_SCOPE int
TclpLoadMemory(
Tcl_Interp *interp, /* Used for error reporting. */
void *buffer, /* Buffer containing the desired code
* (allocated with TclpLoadMemoryGetBuffer). */
int size, /* Allocation size of buffer. */
int codeSize, /* Size of code data read into buffer or -1 if
* an error occurred and the buffer should
* just be freed. */
Tcl_LoadHandle *loadHandle, /* Filled with token for dynamically loaded
* file which will be passed back to
* (*unloadProcPtr)() to unload the file. */
Tcl_FSUnloadFileProc **unloadProcPtr)
/* Filled with address of Tcl_FSUnloadFileProc
* function which should be used for this
* file. */
{
Tcl_DyldLoadHandle *dyldLoadHandle;
NSObjectFileImage dyldObjFileImage = NULL;
Tcl_DyldModuleHandle *modulePtr;
NSModule module;
const char *objFileImageErrMsg = NULL;
/*
* Try to create an object file image that we can load from.
*/
if (codeSize >= 0) {
NSObjectFileImageReturnCode err = NSObjectFileImageSuccess;
const struct fat_header *fh = buffer;
uint32_t ms = 0;
#ifndef __LP64__
const struct mach_header *mh = NULL;
#define mh_size sizeof(struct mach_header)
#define mh_magic MH_MAGIC
#define arch_abi 0
#else
const struct mach_header_64 *mh = NULL;
#define mh_size sizeof(struct mach_header_64)
#define mh_magic MH_MAGIC_64
#define arch_abi CPU_ARCH_ABI64
#endif
if ((size_t) codeSize >= sizeof(struct fat_header)
&& fh->magic == OSSwapHostToBigInt32(FAT_MAGIC)) {
uint32_t fh_nfat_arch = OSSwapBigToHostInt32(fh->nfat_arch);
/*
* Fat binary, try to find mach_header for our architecture
*/
TclLoadDbgMsg("Fat binary, %d archs", fh_nfat_arch);
if ((size_t) codeSize >= sizeof(struct fat_header) +
fh_nfat_arch * sizeof(struct fat_arch)) {
void *fatarchs = (char*)buffer + sizeof(struct fat_header);
const NXArchInfo *arch = NXGetLocalArchInfo();
struct fat_arch *fa;
if (fh->magic != FAT_MAGIC) {
swap_fat_arch(fatarchs, fh_nfat_arch, arch->byteorder);
}
fa = NXFindBestFatArch(arch->cputype | arch_abi,
arch->cpusubtype, fatarchs, fh_nfat_arch);
if (fa) {
TclLoadDbgMsg("NXFindBestFatArch() successful: "
"local cputype %d subtype %d, "
"fat cputype %d subtype %d",
arch->cputype | arch_abi, arch->cpusubtype,
fa->cputype, fa->cpusubtype);
mh = (void*)((char*)buffer + fa->offset);
ms = fa->size;
} else {
TclLoadDbgMsg("NXFindBestFatArch() failed");
err = NSObjectFileImageInappropriateFile;
}
if (fh->magic != FAT_MAGIC) {
swap_fat_arch(fatarchs, fh_nfat_arch, arch->byteorder);
}
} else {
TclLoadDbgMsg("Fat binary header failure");
err = NSObjectFileImageInappropriateFile;
}
} else {
/*
* Thin binary
*/
TclLoadDbgMsg("Thin binary");
mh = buffer;
ms = codeSize;
}
if (ms && !(ms >= mh_size && mh->magic == mh_magic &&
mh->filetype == MH_BUNDLE)) {
TclLoadDbgMsg("Inappropriate file: magic %x filetype %d",
mh->magic, mh->filetype);
err = NSObjectFileImageInappropriateFile;
}
if (err == NSObjectFileImageSuccess) {
err = NSCreateObjectFileImageFromMemory(buffer, codeSize,
&dyldObjFileImage);
if (err == NSObjectFileImageSuccess) {
TclLoadDbgMsg("NSCreateObjectFileImageFromMemory() "
"successful");
} else {
objFileImageErrMsg = DyldOFIErrorMsg(err);
TclLoadDbgMsg("NSCreateObjectFileImageFromMemory() failed: %s",
objFileImageErrMsg);
}
} else {
objFileImageErrMsg = DyldOFIErrorMsg(err);
}
}
/*
* If it went wrong (or we were asked to just deallocate), get rid of the
* memory block and create an error message.
*/
if (dyldObjFileImage == NULL) {
vm_deallocate(mach_task_self(), (vm_address_t) buffer, size);
if (objFileImageErrMsg != NULL) {
Tcl_AppendResult(interp, "NSCreateObjectFileImageFromMemory() "
"error: ", objFileImageErrMsg, NULL);
}
return TCL_ERROR;
}
/*
* Extract the module we want from the image of the object file.
*/
module = NSLinkModule(dyldObjFileImage, "[Memory Based Bundle]",
NSLINKMODULE_OPTION_BINDNOW | NSLINKMODULE_OPTION_RETURN_ON_ERROR);
NSDestroyObjectFileImage(dyldObjFileImage);
if (module) {
TclLoadDbgMsg("NSLinkModule() successful");
} else {
NSLinkEditErrors editError;
int errorNumber;
const char *errorName, *errMsg;
NSLinkEditError(&editError, &errorNumber, &errorName, &errMsg);
TclLoadDbgMsg("NSLinkModule() failed: %s", errMsg);
Tcl_AppendResult(interp, errMsg, NULL);
return TCL_ERROR;
}
/*
* Stash the module reference within the load handle we create and return.
*/
modulePtr = (Tcl_DyldModuleHandle *) ckalloc(sizeof(Tcl_DyldModuleHandle));
modulePtr->module = module;
modulePtr->nextPtr = NULL;
dyldLoadHandle = (Tcl_DyldLoadHandle *)
ckalloc(sizeof(Tcl_DyldLoadHandle));
#if TCL_DYLD_USE_DLFCN
dyldLoadHandle->dlHandle = NULL;
#endif
dyldLoadHandle->dyldLibHeader = NULL;
dyldLoadHandle->modulePtr = modulePtr;
*loadHandle = (Tcl_LoadHandle) dyldLoadHandle;
*unloadProcPtr = &TclpUnloadFile;
return TCL_OK;
}
MODULE_SCOPE Tcl_PackageInitProc *
TclpFindSymbol(
Tcl_Interp *interp, /* For error reporting. */
Tcl_LoadHandle loadHandle, /* Handle from TclpDlopen. */
CONST char *symbol) /* Symbol name to look up. */
{
Tcl_DyldLoadHandle *dyldLoadHandle = (Tcl_DyldLoadHandle *) loadHandle;
Tcl_PackageInitProc *proc = NULL;
const char *errMsg = NULL;
Tcl_DString ds;
const char *native;
native = Tcl_UtfToExternalDString(NULL, symbol, -1, &ds);
#if TCL_DYLD_USE_DLFCN
if (dyldLoadHandle->dlHandle) {
proc = dlsym(dyldLoadHandle->dlHandle, native);
if (proc) {
TclLoadDbgMsg("dlsym() successful");
} else {
errMsg = dlerror();
TclLoadDbgMsg("dlsym() failed: %s", errMsg);
}
} else
#endif /* TCL_DYLD_USE_DLFCN */
{
#if TCL_DYLD_USE_NSMODULE || defined(TCL_LOAD_FROM_MEMORY)
NSSymbol nsSymbol = NULL;
Tcl_DString newName;
/*
* dyld adds an underscore to the beginning of symbol names.
*/
Tcl_DStringInit(&newName);
Tcl_DStringAppend(&newName, "_", 1);
native = Tcl_DStringAppend(&newName, native, -1);
if (dyldLoadHandle->dyldLibHeader) {
nsSymbol = NSLookupSymbolInImage(dyldLoadHandle->dyldLibHeader,
native, NSLOOKUPSYMBOLINIMAGE_OPTION_BIND_NOW |
NSLOOKUPSYMBOLINIMAGE_OPTION_RETURN_ON_ERROR);
if (nsSymbol) {
TclLoadDbgMsg("NSLookupSymbolInImage() successful");
#ifdef DYLD_SUPPORTS_DYLIB_UNLOADING
/*
* Until dyld supports unloading of MY_DYLIB binaries, the
* following is not needed.
*/
NSModule module = NSModuleForSymbol(nsSymbol);
Tcl_DyldModuleHandle *modulePtr = dyldLoadHandle->modulePtr;
while (modulePtr != NULL) {
if (module == modulePtr->module) {
break;
}
modulePtr = modulePtr->nextPtr;
}
if (modulePtr == NULL) {
modulePtr = (Tcl_DyldModuleHandle *)
ckalloc(sizeof(Tcl_DyldModuleHandle));
modulePtr->module = module;
modulePtr->nextPtr = dyldLoadHandle->modulePtr;
dyldLoadHandle->modulePtr = modulePtr;
}
#endif /* DYLD_SUPPORTS_DYLIB_UNLOADING */
} else {
NSLinkEditErrors editError;
int errorNumber;
const char *errorName;
NSLinkEditError(&editError, &errorNumber, &errorName, &errMsg);
TclLoadDbgMsg("NSLookupSymbolInImage() failed: %s", errMsg);
}
} else if (dyldLoadHandle->modulePtr) {
nsSymbol = NSLookupSymbolInModule(
dyldLoadHandle->modulePtr->module, native);
if (nsSymbol) {
TclLoadDbgMsg("NSLookupSymbolInModule() successful");
} else {
TclLoadDbgMsg("NSLookupSymbolInModule() failed");
}
}
if (nsSymbol) {
proc = NSAddressOfSymbol(nsSymbol);
if (proc) {
TclLoadDbgMsg("NSAddressOfSymbol() successful");
} else {
TclLoadDbgMsg("NSAddressOfSymbol() failed");
}
}
Tcl_DStringFree(&newName);
#endif /* TCL_DYLD_USE_NSMODULE */
}
Tcl_DStringFree(&ds);
if (errMsg) {
Tcl_AppendResult(interp, errMsg, NULL);
}
return proc;
}
MODULE_SCOPE int
TclpDlopen(
Tcl_Interp *interp, /* Used for error reporting. */
Tcl_Obj *pathPtr, /* Name of the file containing the desired
* code (UTF-8). */
Tcl_LoadHandle *loadHandle, /* Filled with token for dynamically loaded
* file which will be passed back to
* (*unloadProcPtr)() to unload the file. */
Tcl_FSUnloadFileProc **unloadProcPtr)
/* Filled with address of Tcl_FSUnloadFileProc
* function which should be used for this
* file. */
{
Tcl_DyldLoadHandle *dyldLoadHandle;
#if TCL_DYLD_USE_DLFCN
void *dlHandle = NULL;
#endif
#if TCL_DYLD_USE_NSMODULE || defined(TCL_LOAD_FROM_MEMORY)
const struct mach_header *dyldLibHeader = NULL;
Tcl_DyldModuleHandle *modulePtr = NULL;
#endif
#if TCL_DYLD_USE_NSMODULE
NSLinkEditErrors editError;
int errorNumber;
const char *errorName, *objFileImageErrMsg = NULL;
#endif
const char *errMsg = NULL;
int result;
Tcl_DString ds;
char *fileName = NULL;
const char *nativePath, *nativeFileName = NULL;
/*
* First try the full path the user gave us. This is particularly
* important if the cwd is inside a vfs, and we are trying to load using a
* relative path.
*/
nativePath = Tcl_FSGetNativePath(pathPtr);
#if TCL_DYLD_USE_DLFCN
#if MAC_OS_X_VERSION_MIN_REQUIRED < 1040
if (tclMacOSXDarwinRelease >= 8)
#endif
{
dlHandle = dlopen(nativePath, RTLD_NOW | RTLD_LOCAL);
if (!dlHandle) {
/*
* Let the OS loader examine the binary search path for whatever
* string the user gave us which hopefully refers to a file on the
* binary path.
*/
fileName = Tcl_GetString(pathPtr);
nativeFileName = Tcl_UtfToExternalDString(NULL, fileName, -1, &ds);
dlHandle = dlopen(nativeFileName, RTLD_NOW | RTLD_LOCAL);
}
if (dlHandle) {
TclLoadDbgMsg("dlopen() successful");
} else {
errMsg = dlerror();
TclLoadDbgMsg("dlopen() failed: %s", errMsg);
}
}
if (!dlHandle)
#endif /* TCL_DYLD_USE_DLFCN */
{
#if TCL_DYLD_USE_NSMODULE
dyldLibHeader = NSAddImage(nativePath,
NSADDIMAGE_OPTION_RETURN_ON_ERROR);
if (dyldLibHeader) {
TclLoadDbgMsg("NSAddImage() successful");
} else {
NSLinkEditError(&editError, &errorNumber, &errorName, &errMsg);
if (editError == NSLinkEditFileAccessError) {
/*
* The requested file was not found. Let the OS loader examine
* the binary search path for whatever string the user gave us
* which hopefully refers to a file on the binary path.
*/
if (!fileName) {
fileName = Tcl_GetString(pathPtr);
nativeFileName = Tcl_UtfToExternalDString(NULL, fileName,
-1, &ds);
}
dyldLibHeader = NSAddImage(nativeFileName,
NSADDIMAGE_OPTION_WITH_SEARCHING |
NSADDIMAGE_OPTION_RETURN_ON_ERROR);
if (dyldLibHeader) {
TclLoadDbgMsg("NSAddImage() successful");
} else {
NSLinkEditError(&editError, &errorNumber, &errorName,
&errMsg);
TclLoadDbgMsg("NSAddImage() failed: %s", errMsg);
}
} else if ((editError == NSLinkEditFileFormatError
&& errorNumber == EBADMACHO)
|| editError == NSLinkEditOtherError){
NSObjectFileImageReturnCode err;
NSObjectFileImage dyldObjFileImage;
NSModule module;
/*
* The requested file was found but was not of type MH_DYLIB,
* attempt to load it as a MH_BUNDLE.
*/
err = NSCreateObjectFileImageFromFile(nativePath,
&dyldObjFileImage);
if (err == NSObjectFileImageSuccess && dyldObjFileImage) {
TclLoadDbgMsg("NSCreateObjectFileImageFromFile() "
"successful");
module = NSLinkModule(dyldObjFileImage, nativePath,
NSLINKMODULE_OPTION_BINDNOW
| NSLINKMODULE_OPTION_RETURN_ON_ERROR);
NSDestroyObjectFileImage(dyldObjFileImage);
if (module) {
modulePtr = (Tcl_DyldModuleHandle *)
ckalloc(sizeof(Tcl_DyldModuleHandle));
modulePtr->module = module;
modulePtr->nextPtr = NULL;
TclLoadDbgMsg("NSLinkModule() successful");
} else {
NSLinkEditError(&editError, &errorNumber, &errorName,
&errMsg);
TclLoadDbgMsg("NSLinkModule() failed: %s", errMsg);
}
} else {
objFileImageErrMsg = DyldOFIErrorMsg(err);
TclLoadDbgMsg("NSCreateObjectFileImageFromFile() failed: "
"%s", objFileImageErrMsg);
}
}
}
#endif /* TCL_DYLD_USE_NSMODULE */
}
if (0
#if TCL_DYLD_USE_DLFCN
|| dlHandle
#endif
#if TCL_DYLD_USE_NSMODULE
|| dyldLibHeader || modulePtr
#endif
) {
dyldLoadHandle = (Tcl_DyldLoadHandle *)
ckalloc(sizeof(Tcl_DyldLoadHandle));
#if TCL_DYLD_USE_DLFCN
dyldLoadHandle->dlHandle = dlHandle;
#endif
#if TCL_DYLD_USE_NSMODULE || defined(TCL_LOAD_FROM_MEMORY)
dyldLoadHandle->dyldLibHeader = dyldLibHeader;
dyldLoadHandle->modulePtr = modulePtr;
#endif
*loadHandle = (Tcl_LoadHandle) dyldLoadHandle;
*unloadProcPtr = &TclpUnloadFile;
result = TCL_OK;
} else {
Tcl_AppendResult(interp, errMsg, NULL);
#if TCL_DYLD_USE_NSMODULE
if (objFileImageErrMsg) {
Tcl_AppendResult(interp, "\nNSCreateObjectFileImageFromFile() "
"error: ", objFileImageErrMsg, NULL);
}
#endif
result = TCL_ERROR;
}
if(fileName) {
Tcl_DStringFree(&ds);
}
return result;
}