summaryrefslogtreecommitdiffstats
path: root/unix/tclLoadDyld.c
diff options
context:
space:
mode:
Diffstat (limited to 'unix/tclLoadDyld.c')
-rw-r--r--unix/tclLoadDyld.c568
1 files changed, 349 insertions, 219 deletions
diff --git a/unix/tclLoadDyld.c b/unix/tclLoadDyld.c
index ac38350..50c283d 100644
--- a/unix/tclLoadDyld.c
+++ b/unix/tclLoadDyld.c
@@ -3,19 +3,51 @@
*
* This procedure provides a version of the TclLoadFile that works with
* Apple's dyld dynamic loading.
- * Original version of his file (now superseded long ago) provided by
+ * Original version of his file (superseded long ago) provided by
* Wilfredo Sanchez (wsanchez@apple.com).
*
* Copyright (c) 1995 Apple Computer, Inc.
- * Copyright (c) 2005 Daniel A. Steffen <das@users.sourceforge.net>
+ * Copyright (c) 2001-2007 Daniel A. Steffen <das@users.sourceforge.net>
*
* See the file "license.terms" for information on usage and redistribution of
* this file, and for a DISCLAIMER OF ALL WARRANTIES.
- *
- * RCS: @(#) $Id: tclLoadDyld.c,v 1.22 2005/11/27 06:09:10 das Exp $
*/
#include "tclInt.h"
+
+#ifndef MODULE_SCOPE
+# define MODULE_SCOPE extern
+#endif
+
+/*
+ * Use preferred dlfcn API on 10.4 and later
+ */
+
+#ifndef TCL_DYLD_USE_DLFCN
+# ifdef NO_DLFCN_H
+# define TCL_DYLD_USE_DLFCN 0
+# else
+# define TCL_DYLD_USE_DLFCN 1
+# endif
+#endif
+
+/*
+ * Use deprecated NSModule API only to support 10.3 and earlier:
+ */
+
+#ifndef TCL_DYLD_USE_NSMODULE
+# define TCL_DYLD_USE_NSMODULE 0
+#endif
+
+/*
+ * Use includes for the API we're using.
+ */
+
+#if TCL_DYLD_USE_DLFCN
+# include <dlfcn.h>
+#endif /* TCL_DYLD_USE_DLFCN */
+
+#if TCL_DYLD_USE_NSMODULE || defined(TCL_LOAD_FROM_MEMORY)
#include <mach-o/dyld.h>
#include <mach-o/fat.h>
#include <mach-o/swap.h>
@@ -27,19 +59,27 @@ typedef struct Tcl_DyldModuleHandle {
struct Tcl_DyldModuleHandle *nextPtr;
NSModule module;
} Tcl_DyldModuleHandle;
+#endif /* TCL_DYLD_USE_NSMODULE || TCL_LOAD_FROM_MEMORY */
-typedef struct Tcl_DyldLoadHandle {
- CONST struct mach_header *dyldLibHeader;
+typedef struct {
+ void *dlHandle;
+#if TCL_DYLD_USE_NSMODULE || defined(TCL_LOAD_FROM_MEMORY)
+ const struct mach_header *dyldLibHeader;
Tcl_DyldModuleHandle *modulePtr;
+#endif
} Tcl_DyldLoadHandle;
-#ifdef TCL_LOAD_FROM_MEMORY
-typedef struct ThreadSpecificData {
- int haveLoadMemory;
-} ThreadSpecificData;
-
-static Tcl_ThreadDataKey dataKey;
+#if TCL_DYLD_USE_DLFCN || defined(TCL_LOAD_FROM_MEMORY)
+MODULE_SCOPE long tclMacOSXDarwinRelease;
#endif
+
+/*
+ * Static functions defined in this file.
+ */
+
+static void * FindSymbol(Tcl_Interp *interp,
+ Tcl_LoadHandle loadHandle, const char *symbol);
+static void UnloadFile(Tcl_LoadHandle handle);
/*
*----------------------------------------------------------------------
@@ -58,8 +98,11 @@ static Tcl_ThreadDataKey dataKey;
*----------------------------------------------------------------------
*/
-static CONST char*
-DyldOFIErrorMsg(int err) {
+#if TCL_DYLD_USE_NSMODULE || defined(TCL_LOAD_FROM_MEMORY)
+static const char *
+DyldOFIErrorMsg(
+ int err)
+{
switch(err) {
case NSObjectFileImageSuccess:
return NULL;
@@ -77,6 +120,7 @@ DyldOFIErrorMsg(int err) {
return "unknown error";
}
}
+#endif /* TCL_DYLD_USE_NSMODULE || TCL_LOAD_FROM_MEMORY */
/*
*----------------------------------------------------------------------
@@ -101,19 +145,34 @@ 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
+ Tcl_LoadHandle *loadHandle, /* Filled with token for dynamically loaded
* file which will be passed back to
* (*unloadProcPtr)() to unload the file. */
- Tcl_FSUnloadFileProc **unloadProcPtr)
+ Tcl_FSUnloadFileProc **unloadProcPtr,
/* Filled with address of Tcl_FSUnloadFileProc
* function which should be used for this
* file. */
+ int flags)
{
Tcl_DyldLoadHandle *dyldLoadHandle;
- CONST struct mach_header *dyldLibHeader;
- NSObjectFileImage dyldObjFileImage = NULL;
+ Tcl_LoadHandle newHandle;
+ void *dlHandle = NULL;
+#if TCL_DYLD_USE_NSMODULE || defined(TCL_LOAD_FROM_MEMORY)
+ const struct mach_header *dyldLibHeader = NULL;
Tcl_DyldModuleHandle *modulePtr = NULL;
- CONST char *native;
+#endif
+#if TCL_DYLD_USE_NSMODULE
+ NSLinkEditErrors editError;
+ int errorNumber;
+ const char *errorName, *objFileImageErrMsg = NULL;
+#endif /* TCL_DYLD_USE_NSMODULE */
+ const char *errMsg = NULL;
+ int result;
+ Tcl_DString ds;
+ const char *nativePath, *nativeFileName = NULL;
+#if TCL_DYLD_USE_DLFCN
+ int dlopenflags = 0;
+#endif /* TCL_DYLD_USE_DLFCN */
/*
* First try the full path the user gave us. This is particularly
@@ -121,98 +180,139 @@ TclpDlopen(
* relative path.
*/
- native = Tcl_FSGetNativePath(pathPtr);
- dyldLibHeader = NSAddImage(native, NSADDIMAGE_OPTION_RETURN_ON_ERROR);
-
- if (!dyldLibHeader) {
- NSLinkEditErrors editError;
- int errorNumber;
- CONST char *name, *msg, *objFileImageErrMsg = NULL;
-
- NSLinkEditError(&editError, &errorNumber, &name, &msg);
-
- 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.
- */
+ nativePath = Tcl_FSGetNativePath(pathPtr);
+ nativeFileName = Tcl_UtfToExternalDString(NULL, Tcl_GetString(pathPtr),
+ -1, &ds);
- Tcl_DString ds;
- char *fileName = Tcl_GetString(pathPtr);
- CONST char *native =
- Tcl_UtfToExternalDString(NULL, fileName, -1, &ds);
+#if TCL_DYLD_USE_DLFCN
+ /*
+ * Use (RTLD_NOW|RTLD_LOCAL) as default, see [Bug #3216070]
+ */
- dyldLibHeader = NSAddImage(native, NSADDIMAGE_OPTION_WITH_SEARCHING
- | NSADDIMAGE_OPTION_RETURN_ON_ERROR);
- Tcl_DStringFree(&ds);
- if (!dyldLibHeader) {
- NSLinkEditError(&editError, &errorNumber, &name, &msg);
- }
- } else if ((editError == NSLinkEditFileFormatError
- && errorNumber == EBADMACHO)
- || editError == NSLinkEditOtherError){
- /*
- * The requested file was found but was not of type MH_DYLIB,
- * attempt to load it as a MH_BUNDLE.
- */
+ if (flags & TCL_LOAD_GLOBAL) {
+ dlopenflags |= RTLD_GLOBAL;
+ } else {
+ dlopenflags |= RTLD_LOCAL;
+ }
+ if (flags & TCL_LOAD_LAZY) {
+ dlopenflags |= RTLD_LAZY;
+ } else {
+ dlopenflags |= RTLD_NOW;
+ }
+ dlHandle = dlopen(nativePath, dlopenflags);
+ 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.
+ */
- NSObjectFileImageReturnCode err =
- NSCreateObjectFileImageFromFile(native, &dyldObjFileImage);
- objFileImageErrMsg = DyldOFIErrorMsg(err);
+ dlHandle = dlopen(nativeFileName, dlopenflags);
+ if (!dlHandle) {
+ errMsg = dlerror();
}
-
- if (!dyldLibHeader && !dyldObjFileImage) {
- Tcl_AppendResult(interp, msg, NULL);
- if (msg && *msg) {
- Tcl_AppendResult(interp, "\n", NULL);
- }
- if (objFileImageErrMsg) {
- Tcl_AppendResult(interp,
- "NSCreateObjectFileImageFromFile() error: ",
- objFileImageErrMsg, NULL);
+ }
+#endif /* TCL_DYLD_USE_DLFCN */
+
+ if (!dlHandle) {
+#if TCL_DYLD_USE_NSMODULE
+ dyldLibHeader = NSAddImage(nativePath,
+ NSADDIMAGE_OPTION_RETURN_ON_ERROR);
+ if (!dyldLibHeader) {
+ 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.
+ */
+
+ dyldLibHeader = NSAddImage(nativeFileName,
+ NSADDIMAGE_OPTION_WITH_SEARCHING |
+ NSADDIMAGE_OPTION_RETURN_ON_ERROR);
+ if (!dyldLibHeader) {
+ NSLinkEditError(&editError, &errorNumber, &errorName,
+ &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) {
+ int nsflags = NSLINKMODULE_OPTION_RETURN_ON_ERROR;
+ if (!(flags & 1)) nsflags |= NSLINKMODULE_OPTION_PRIVATE;
+ if (!(flags & 2)) nsflags |= NSLINKMODULE_OPTION_BINDNOW;
+ module = NSLinkModule(dyldObjFileImage, nativePath, nsflags);
+ NSDestroyObjectFileImage(dyldObjFileImage);
+ if (module) {
+ modulePtr = ckalloc(sizeof(Tcl_DyldModuleHandle));
+ modulePtr->module = module;
+ modulePtr->nextPtr = NULL;
+ } else {
+ NSLinkEditError(&editError, &errorNumber, &errorName,
+ &errMsg);
+ }
+ } else {
+ objFileImageErrMsg = DyldOFIErrorMsg(err);
+ }
}
- return TCL_ERROR;
}
+#endif /* TCL_DYLD_USE_NSMODULE */
}
- if (dyldObjFileImage) {
- NSModule module;
-
- module = NSLinkModule(dyldObjFileImage, native,
- NSLINKMODULE_OPTION_BINDNOW
- | NSLINKMODULE_OPTION_RETURN_ON_ERROR);
- NSDestroyObjectFileImage(dyldObjFileImage);
-
- if (!module) {
- NSLinkEditErrors editError;
- int errorNumber;
- CONST char *name, *msg;
+ if (dlHandle
+#if TCL_DYLD_USE_NSMODULE
+ || dyldLibHeader || modulePtr
+#endif /* TCL_DYLD_USE_NSMODULE */
+ ) {
+ dyldLoadHandle = ckalloc(sizeof(Tcl_DyldLoadHandle));
+ dyldLoadHandle->dlHandle = dlHandle;
+#if TCL_DYLD_USE_NSMODULE || defined(TCL_LOAD_FROM_MEMORY)
+ dyldLoadHandle->dyldLibHeader = dyldLibHeader;
+ dyldLoadHandle->modulePtr = modulePtr;
+#endif /* TCL_DYLD_USE_NSMODULE || TCL_LOAD_FROM_MEMORY */
+ newHandle = ckalloc(sizeof(*newHandle));
+ newHandle->clientData = dyldLoadHandle;
+ newHandle->findSymbolProcPtr = &FindSymbol;
+ newHandle->unloadFileProcPtr = &UnloadFile;
+ *unloadProcPtr = &UnloadFile;
+ *loadHandle = newHandle;
+ result = TCL_OK;
+ } else {
+ Tcl_Obj *errObj = Tcl_NewObj();
- NSLinkEditError(&editError, &errorNumber, &name, &msg);
- Tcl_AppendResult(interp, msg, NULL);
- return TCL_ERROR;
+ if (errMsg != NULL) {
+ Tcl_AppendToObj(errObj, errMsg, -1);
}
-
- modulePtr = (Tcl_DyldModuleHandle *)
- ckalloc(sizeof(Tcl_DyldModuleHandle));
- modulePtr->module = module;
- modulePtr->nextPtr = NULL;
+#if TCL_DYLD_USE_NSMODULE
+ if (objFileImageErrMsg) {
+ Tcl_AppendPrintfToObj(errObj,
+ "\nNSCreateObjectFileImageFromFile() error: %s",
+ objFileImageErrMsg);
+ }
+#endif /* TCL_DYLD_USE_NSMODULE */
+ Tcl_SetObjResult(interp, errObj);
+ result = TCL_ERROR;
}
- dyldLoadHandle = (Tcl_DyldLoadHandle *)
- ckalloc(sizeof(Tcl_DyldLoadHandle));
- dyldLoadHandle->dyldLibHeader = dyldLibHeader;
- dyldLoadHandle->modulePtr = modulePtr;
- *loadHandle = (Tcl_LoadHandle) dyldLoadHandle;
- *unloadProcPtr = &TclpUnloadFile;
- return TCL_OK;
+ Tcl_DStringFree(&ds);
+ return result;
}
/*
*----------------------------------------------------------------------
*
- * TclpFindSymbol --
+ * FindSymbol --
*
* Looks up a symbol, by name, through a handle associated with a
* previously loaded piece of code (shared library).
@@ -225,81 +325,96 @@ TclpDlopen(
*----------------------------------------------------------------------
*/
-MODULE_SCOPE Tcl_PackageInitProc *
-TclpFindSymbol(
+static void *
+FindSymbol(
Tcl_Interp *interp, /* For error reporting. */
Tcl_LoadHandle loadHandle, /* Handle from TclpDlopen. */
- CONST char *symbol) /* Symbol name to look up. */
+ const char *symbol) /* Symbol name to look up. */
{
- NSSymbol nsSymbol;
- CONST char *native;
- Tcl_DString newName, ds;
+ Tcl_DyldLoadHandle *dyldLoadHandle = loadHandle->clientData;
Tcl_PackageInitProc *proc = NULL;
- Tcl_DyldLoadHandle *dyldLoadHandle = (Tcl_DyldLoadHandle *) loadHandle;
-
- /*
- * dyld adds an underscore to the beginning of symbol names.
- */
+ const char *errMsg = NULL;
+ Tcl_DString ds;
+ const char *native;
native = Tcl_UtfToExternalDString(NULL, symbol, -1, &ds);
- 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) {
- /*
- * Until dyld supports unloading of MY_DYLIB binaries, the
- * following is not needed.
- */
+ if (dyldLoadHandle->dlHandle) {
+#if TCL_DYLD_USE_DLFCN
+ proc = dlsym(dyldLoadHandle->dlHandle, native);
+ if (!proc) {
+ errMsg = dlerror();
+ }
+#endif /* TCL_DYLD_USE_DLFCN */
+ } else {
+#if TCL_DYLD_USE_NSMODULE || defined(TCL_LOAD_FROM_MEMORY)
+ NSSymbol nsSymbol = NULL;
+ Tcl_DString newName;
-#ifdef DYLD_SUPPORTS_DYLIB_UNLOADING
- NSModule module = NSModuleForSymbol(nsSymbol);
- Tcl_DyldModuleHandle *modulePtr = dyldLoadHandle->modulePtr;
+ /*
+ * dyld adds an underscore to the beginning of symbol names.
+ */
+
+ Tcl_DStringInit(&newName);
+ TclDStringAppendLiteral(&newName, "_");
+ 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) {
+ /*
+ * Until dyld supports unloading of MY_DYLIB binaries, the
+ * following is not needed.
+ */
- while (modulePtr != NULL) {
- if (module == modulePtr->module) {
- break;
+#ifdef DYLD_SUPPORTS_DYLIB_UNLOADING
+ NSModule module = NSModuleForSymbol(nsSymbol);
+ Tcl_DyldModuleHandle *modulePtr = dyldLoadHandle->modulePtr;
+
+ while (modulePtr != NULL) {
+ if (module == modulePtr->module) {
+ break;
+ }
+ modulePtr = modulePtr->nextPtr;
+ }
+ if (modulePtr == NULL) {
+ modulePtr = ckalloc(sizeof(Tcl_DyldModuleHandle));
+ modulePtr->module = module;
+ modulePtr->nextPtr = dyldLoadHandle->modulePtr;
+ dyldLoadHandle->modulePtr = modulePtr;
}
- 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;
- } else {
- NSLinkEditErrors editError;
- int errorNumber;
- CONST char *name, *msg;
-
- NSLinkEditError(&editError, &errorNumber, &name, &msg);
- Tcl_AppendResult(interp, msg, NULL);
+ NSLinkEditError(&editError, &errorNumber, &errorName, &errMsg);
+ }
+ } else if (dyldLoadHandle->modulePtr) {
+ nsSymbol = NSLookupSymbolInModule(
+ dyldLoadHandle->modulePtr->module, native);
}
- } else {
- nsSymbol = NSLookupSymbolInModule(dyldLoadHandle->modulePtr->module,
- native);
- }
- if (nsSymbol) {
- proc = NSAddressOfSymbol(nsSymbol);
+ if (nsSymbol) {
+ proc = NSAddressOfSymbol(nsSymbol);
+ }
+ Tcl_DStringFree(&newName);
+#endif /* TCL_DYLD_USE_NSMODULE */
}
- Tcl_DStringFree(&newName);
Tcl_DStringFree(&ds);
-
+ if (errMsg && (interp != NULL)) {
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+ "cannot find symbol \"%s\": %s", symbol, errMsg));
+ Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "LOAD_SYMBOL", symbol,
+ NULL);
+ }
return proc;
}
/*
*----------------------------------------------------------------------
*
- * TclpUnloadFile --
+ * UnloadFile --
*
* Unloads a dynamically loaded binary code file from memory. Code
* pointers in the formerly loaded file are no longer valid after calling
@@ -316,25 +431,34 @@ TclpFindSymbol(
*----------------------------------------------------------------------
*/
-MODULE_SCOPE void
-TclpUnloadFile(
+static void
+UnloadFile(
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;
- Tcl_DyldModuleHandle *modulePtr = dyldLoadHandle->modulePtr;
+ Tcl_DyldLoadHandle *dyldLoadHandle = loadHandle->clientData;
- while (modulePtr != NULL) {
- void *ptr;
+ if (dyldLoadHandle->dlHandle) {
+#if TCL_DYLD_USE_DLFCN
+ (void) dlclose(dyldLoadHandle->dlHandle);
+#endif /* TCL_DYLD_USE_DLFCN */
+ } else {
+#if TCL_DYLD_USE_NSMODULE || defined(TCL_LOAD_FROM_MEMORY)
+ Tcl_DyldModuleHandle *modulePtr = dyldLoadHandle->modulePtr;
+
+ while (modulePtr != NULL) {
+ void *ptr = modulePtr;
- NSUnLinkModule(modulePtr->module,
- NSUNLINKMODULE_OPTION_RESET_LAZY_REFERENCES);
- ptr = modulePtr;
- modulePtr = modulePtr->nextPtr;
- ckfree(ptr);
+ (void) NSUnLinkModule(modulePtr->module,
+ NSUNLINKMODULE_OPTION_RESET_LAZY_REFERENCES);
+ modulePtr = modulePtr->nextPtr;
+ ckfree(ptr);
+ }
+#endif /* TCL_DYLD_USE_NSMODULE */
}
- ckfree((char*) dyldLoadHandle);
+ ckfree(dyldLoadHandle);
+ ckfree(loadHandle);
}
/*
@@ -359,7 +483,7 @@ TclpUnloadFile(
int
TclGuessPackageName(
- CONST char *fileName, /* Name of file containing package (already
+ const char *fileName, /* Name of file containing package (already
* translated to local form if needed). */
Tcl_DString *bufPtr) /* Initialized empty dstring. Append package
* name to this if possible. */
@@ -367,7 +491,6 @@ TclGuessPackageName(
return 0;
}
-#ifdef TCL_LOAD_FROM_MEMORY
/*
*----------------------------------------------------------------------
*
@@ -384,28 +507,19 @@ TclGuessPackageName(
*----------------------------------------------------------------------
*/
+#ifdef TCL_LOAD_FROM_MEMORY
MODULE_SCOPE void *
TclpLoadMemoryGetBuffer(
Tcl_Interp *interp, /* Used for error reporting. */
int size) /* Size of desired buffer. */
{
- ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
void *buffer = NULL;
- if (!tsdPtr->haveLoadMemory) {
- /*
- * NSCreateObjectFileImageFromMemory is available but always fails
- * prior to Darwin 7.
- */
-
- struct utsname name;
-
- if (!uname(&name)) {
- long release = strtol(name.release, NULL, 10);
- tsdPtr->haveLoadMemory = (release >= 7) ? 1 : -1;
- }
- }
- if (tsdPtr->haveLoadMemory > 0) {
+ /*
+ * NSCreateObjectFileImageFromMemory is available but always fails
+ * prior to Darwin 7.
+ */
+ if (tclMacOSXDarwinRelease >= 7) {
/*
* We must allocate the buffer using vm_allocate, because
* NSCreateObjectFileImageFromMemory will dispose of it using
@@ -418,6 +532,7 @@ TclpLoadMemoryGetBuffer(
}
return buffer;
}
+#endif /* TCL_LOAD_FROM_MEMORY */
/*
*----------------------------------------------------------------------
@@ -437,6 +552,7 @@ TclpLoadMemoryGetBuffer(
*----------------------------------------------------------------------
*/
+#ifdef TCL_LOAD_FROM_MEMORY
MODULE_SCOPE int
TclpLoadMemory(
Tcl_Interp *interp, /* Used for error reporting. */
@@ -446,19 +562,22 @@ TclpLoadMemory(
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
+ Tcl_LoadHandle *loadHandle, /* Filled with token for dynamically loaded
* file which will be passed back to
* (*unloadProcPtr)() to unload the file. */
- Tcl_FSUnloadFileProc **unloadProcPtr)
+ Tcl_FSUnloadFileProc **unloadProcPtr,
/* Filled with address of Tcl_FSUnloadFileProc
* function which should be used for this
* file. */
+ int flags)
{
+ Tcl_LoadHandle newHandle;
Tcl_DyldLoadHandle *dyldLoadHandle;
NSObjectFileImage dyldObjFileImage = NULL;
Tcl_DyldModuleHandle *modulePtr;
NSModule module;
- CONST char *objFileImageErrMsg = NULL;
+ const char *objFileImageErrMsg = NULL;
+ int nsflags = NSLINKMODULE_OPTION_RETURN_ON_ERROR;
/*
* Try to create an object file image that we can load from.
@@ -466,38 +585,41 @@ TclpLoadMemory(
if (codeSize >= 0) {
NSObjectFileImageReturnCode err = NSObjectFileImageSuccess;
- CONST struct fat_header *fh = buffer;
+ const struct fat_header *fh = buffer;
uint32_t ms = 0;
#ifndef __LP64__
- CONST struct mach_header *mh = NULL;
- #define mh_magic OSSwapHostToBigInt32(MH_MAGIC)
- #define mh_size sizeof(struct mach_header)
+ 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_magic OSSwapHostToBigInt32(MH_MAGIC_64)
- #define mh_size sizeof(struct mach_header_64)
-#endif
-
- if (codeSize >= sizeof(struct fat_header)
+ 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 /* __LP64__ */
+
+ 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
*/
- uint32_t fh_nfat_arch = OSSwapBigToHostInt32(fh->nfat_arch);
-
- if (codeSize >= sizeof(struct fat_header) +
+
+ if ((size_t) codeSize >= sizeof(struct fat_header) +
fh_nfat_arch * sizeof(struct fat_arch)) {
- void *fatarchs = buffer + sizeof(struct fat_header);
- CONST NXArchInfo *arch = NXGetLocalArchInfo();
+ 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->cpusubtype,
- fatarchs, fh_nfat_arch);
+ fa = NXFindBestFatArch(arch->cputype | arch_abi,
+ arch->cpusubtype, fatarchs, fh_nfat_arch);
if (fa) {
- mh = buffer + fa->offset;
+ mh = (void *)((char *) buffer + fa->offset);
ms = fa->size;
} else {
err = NSObjectFileImageInappropriateFile;
@@ -512,18 +634,23 @@ TclpLoadMemory(
/*
* Thin binary
*/
+
mh = buffer;
ms = codeSize;
}
if (ms && !(ms >= mh_size && mh->magic == mh_magic &&
- mh->filetype == OSSwapHostToBigInt32(MH_BUNDLE))) {
+ mh->filetype == MH_BUNDLE)) {
err = NSObjectFileImageInappropriateFile;
}
if (err == NSObjectFileImageSuccess) {
err = NSCreateObjectFileImageFromMemory(buffer, codeSize,
&dyldObjFileImage);
+ if (err != NSObjectFileImageSuccess) {
+ objFileImageErrMsg = DyldOFIErrorMsg(err);
+ }
+ } else {
+ objFileImageErrMsg = DyldOFIErrorMsg(err);
}
- objFileImageErrMsg = DyldOFIErrorMsg(err);
}
/*
@@ -534,9 +661,9 @@ TclpLoadMemory(
if (dyldObjFileImage == NULL) {
vm_deallocate(mach_task_self(), (vm_address_t) buffer, size);
if (objFileImageErrMsg != NULL) {
- Tcl_AppendResult(interp,
- "NSCreateObjectFileImageFromFile() error: ",
- objFileImageErrMsg, NULL);
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+ "NSCreateObjectFileImageFromMemory() error: %s",
+ objFileImageErrMsg));
}
return TCL_ERROR;
}
@@ -545,17 +672,17 @@ TclpLoadMemory(
* 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);
+ if (!(flags & 1)) nsflags |= NSLINKMODULE_OPTION_PRIVATE;
+ if (!(flags & 2)) nsflags |= NSLINKMODULE_OPTION_BINDNOW;
+ module = NSLinkModule(dyldObjFileImage, "[Memory Based Bundle]", nsflags);
NSDestroyObjectFileImage(dyldObjFileImage);
-
if (!module) {
NSLinkEditErrors editError;
int errorNumber;
- CONST char *name, *msg;
+ const char *errorName, *errMsg;
- NSLinkEditError(&editError, &errorNumber, &name, &msg);
- Tcl_AppendResult(interp, msg, NULL);
+ NSLinkEditError(&editError, &errorNumber, &errorName, &errMsg);
+ Tcl_SetObjResult(interp, Tcl_NewStringObj(errMsg, -1));
return TCL_ERROR;
}
@@ -563,24 +690,27 @@ TclpLoadMemory(
* Stash the module reference within the load handle we create and return.
*/
- modulePtr = (Tcl_DyldModuleHandle *) ckalloc(sizeof(Tcl_DyldModuleHandle));
+ modulePtr = ckalloc(sizeof(Tcl_DyldModuleHandle));
modulePtr->module = module;
modulePtr->nextPtr = NULL;
-
- dyldLoadHandle = (Tcl_DyldLoadHandle *)
- ckalloc(sizeof(Tcl_DyldLoadHandle));
+ dyldLoadHandle = ckalloc(sizeof(Tcl_DyldLoadHandle));
+ dyldLoadHandle->dlHandle = NULL;
dyldLoadHandle->dyldLibHeader = NULL;
dyldLoadHandle->modulePtr = modulePtr;
- *loadHandle = (Tcl_LoadHandle) dyldLoadHandle;
- *unloadProcPtr = &TclpUnloadFile;
+ newHandle = ckalloc(sizeof(*newHandle));
+ newHandle->clientData = dyldLoadHandle;
+ newHandle->findSymbolProcPtr = &FindSymbol;
+ newHandle->unloadFileProcPtr = &UnloadFile;
+ *loadHandle = newHandle;
+ *unloadProcPtr = &UnloadFile;
return TCL_OK;
}
-#endif
+#endif /* TCL_LOAD_FROM_MEMORY */
/*
* Local Variables:
* mode: c
* c-basic-offset: 4
- * fill-column: 78
+ * fill-column: 79
* End:
*/
generated by cgit v0.12 at 2025-10-18 16:09:51 (GMT)