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--- dyld/dyld-44.4/src/dyldAPIsInLibSystem.cpp
+++ /dev/null
@@ -1,1133 +0,0 @@
-/* -*- mode: C++; c-basic-offset: 4; tab-width: 4 -*-
- *
- * Copyright (c) 2004-2005 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- *
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
- */
-
-#include <stddef.h>
-#include <string.h>
-#include <crt_externs.h>
-
-#include "mach-o/dyld.h"
-#include "mach-o/dyld_priv.h"
-
-#include "dyldLock.h"
-
-/*
- * names_match() takes an install_name from an LC_LOAD_DYLIB command and a
- * libraryName (which is -lx or -framework Foo argument passed to the static
- * link editor for the same library) and determines if they match. This depends
- * on conventional use of names including major versioning.
- */
-static
-bool
-names_match(
-char *install_name,
-const char* libraryName)
-{
- char *basename;
- unsigned long n;
-
- /*
- * Conventional install names have these forms:
- * /System/Library/Frameworks/AppKit.framework/Versions/A/Appkit
- * /Local/Library/Frameworks/AppKit.framework/Appkit
- * /lib/libsys_s.A.dylib
- * /usr/lib/libsys_s.dylib
- */
- basename = strrchr(install_name, '/');
- if(basename == NULL)
- basename = install_name;
- else
- basename++;
-
- /*
- * By checking the base name matching the library name we take care
- * of the -framework cases.
- */
- if(strcmp(basename, libraryName) == 0)
- return(TRUE);
-
- /*
- * Now check the base name for "lib" if so proceed to check for the
- * -lx case dealing with a possible .X.dylib and a .dylib extension.
- */
- if(strncmp(basename, "lib", 3) ==0){
- n = strlen(libraryName);
- if(strncmp(basename+3, libraryName, n) == 0){
- if(strncmp(basename+3+n, ".dylib", 6) == 0)
- return(TRUE);
- if(basename[3+n] == '.' &&
- basename[3+n+1] != '\0' &&
- strncmp(basename+3+n+2, ".dylib", 6) == 0)
- return(TRUE);
- }
- }
- return(FALSE);
-}
-
-void NSInstallLinkEditErrorHandlers(
-const NSLinkEditErrorHandlers* handlers)
-{
- DYLD_WRITER_LOCK_THIS_BLOCK;
- static void (*p)(
- void (*undefined)(const char* symbol_name),
- NSModule (*multiple)(NSSymbol s, NSModule old, NSModule newhandler),
- void (*linkEdit)(NSLinkEditErrors c, int errorNumber,
- const char* fileName, const char* errorString)) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_install_handlers", (void**)&p);
- p(handlers->undefined, handlers->multiple, handlers->linkEdit);
-}
-
-const char*
-NSNameOfModule(
-NSModule module)
-{
- DYLD_READER_LOCK_THIS_BLOCK;
- static const char* (*p)(NSModule module) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_NSNameOfModule", (void**)&p);
- return(p(module));
-}
-
-const char*
-NSLibraryNameForModule(
-NSModule module)
-{
- DYLD_READER_LOCK_THIS_BLOCK;
- static const char* (*p)(NSModule module) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_NSLibraryNameForModule", (void**)&p);
- return(p(module));
-}
-
-bool
-NSIsSymbolNameDefined(
-const char* symbolName)
-{
- DYLD_READER_LOCK_THIS_BLOCK;
- static bool (*p)(const char* symbolName) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_NSIsSymbolNameDefined", (void**)&p);
- return(p(symbolName));
-}
-
-bool
-NSIsSymbolNameDefinedWithHint(
-const char* symbolName,
-const char* libraryNameHint)
-{
- DYLD_READER_LOCK_THIS_BLOCK;
- static bool (*p)(const char* symbolName,
- const char* libraryNameHint) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_NSIsSymbolNameDefinedWithHint", (void**)&p);
- return(p(symbolName, libraryNameHint));
-}
-
-bool
-NSIsSymbolNameDefinedInImage(
-const struct mach_header *image,
-const char* symbolName)
-{
- DYLD_READER_LOCK_THIS_BLOCK;
- static bool (*p)(const struct mach_header *image,
- const char* symbolName) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_NSIsSymbolNameDefinedInImage", (void**)&p);
- return(p(image, symbolName));
-}
-
-NSSymbol
-NSLookupAndBindSymbol(
-const char* symbolName)
-{
- DYLD_WRITER_LOCK_THIS_BLOCK;
- static NSSymbol (*p)(const char* symbolName) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_NSLookupAndBindSymbol", (void**)&p);
- return(p(symbolName));
-}
-
-NSSymbol
-NSLookupAndBindSymbolWithHint(
-const char* symbolName,
-const char* libraryNameHint)
-{
- DYLD_WRITER_LOCK_THIS_BLOCK;
- static NSSymbol (*p)(const char* symbolName,
- const char* libraryNameHint) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_NSLookupAndBindSymbolWithHint", (void**)&p);
- return(p(symbolName, libraryNameHint));
-}
-
-NSSymbol
-NSLookupSymbolInModule(
-NSModule module,
-const char* symbolName)
-{
- DYLD_READER_LOCK_THIS_BLOCK;
- static NSSymbol (*p)(NSModule module, const char* symbolName) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_NSLookupSymbolInModule", (void**)&p);
- return(p(module, symbolName));
-}
-
-NSSymbol
-NSLookupSymbolInImage(
-const struct mach_header *image,
-const char* symbolName,
-uint32_t options)
-{
- DYLD_READER_LOCK_THIS_BLOCK;
- static NSSymbol (*p)(const struct mach_header *image,
- const char* symbolName,
- uint32_t options) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_NSLookupSymbolInImage", (void**)&p);
- return(p(image, symbolName, options));
-}
-
-const char*
-NSNameOfSymbol(
-NSSymbol symbol)
-{
- DYLD_READER_LOCK_THIS_BLOCK;
- static char * (*p)(NSSymbol symbol) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_NSNameOfSymbol",(void**)&p);
- return(p(symbol));
-}
-
-void *
-NSAddressOfSymbol(
-NSSymbol symbol)
-{
- DYLD_READER_LOCK_THIS_BLOCK;
- static void * (*p)(NSSymbol symbol) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_NSAddressOfSymbol", (void**)&p);
- return(p(symbol));
-}
-
-NSModule
-NSModuleForSymbol(
-NSSymbol symbol)
-{
- DYLD_READER_LOCK_THIS_BLOCK;
- static NSModule (*p)(NSSymbol symbol) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_NSModuleForSymbol", (void**)&p);
- return(p(symbol));
-}
-
-bool
-NSAddLibrary(
-const char* pathName)
-{
- DYLD_WRITER_LOCK_THIS_BLOCK;
- static bool (*p)(const char* pathName) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_NSAddLibrary", (void**)&p);
- return(p(pathName));
-}
-
-bool
-NSAddLibraryWithSearching(
-const char* pathName)
-{
- DYLD_WRITER_LOCK_THIS_BLOCK;
- static bool (*p)(const char* pathName) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_NSAddLibraryWithSearching", (void**)&p);
- return(p(pathName));
-}
-
-const struct mach_header *
-NSAddImage(
-const char* image_name,
-uint32_t options)
-{
- DYLD_WRITER_LOCK_THIS_BLOCK;
- static const struct mach_header * (*p)(const char* image_name,
- uint32_t options) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_NSAddImage", (void**)&p);
- return(p(image_name, options));
-}
-
-/*
- * This routine returns the current version of the named shared library the
- * executable it was built with. The libraryName parameter is the same as the
- * -lx or -framework Foo argument passed to the static link editor when building
- * the executable (with -lx it would be "x" and with -framework Foo it would be
- * "Foo"). If this the executable was not built against the specified library
- * it returns -1. It should be noted that if this only returns the value the
- * current version of the named shared library the executable was built with
- * and not a list of current versions that dependent libraries and bundles the
- * program is using were built with.
- */
-int32_t
-NSVersionOfLinkTimeLibrary(
-const char* libraryName)
-{
- unsigned long i;
- struct load_command *load_commands, *lc;
- struct dylib_command *dl;
- char *install_name;
-#ifndef __OPENSTEP__
- static struct mach_header *mh = NULL;
- if(mh == NULL)
- mh = _NSGetMachExecuteHeader();
-#else /* defined(__OPENSTEP__) */
-#ifdef __DYNAMIC__
- static struct mach_header *mh = NULL;
- if(mh == NULL)
- _dyld_lookup_and_bind("__mh_execute_header", &mh, NULL);
-#else
- struct mach_header *mh;
- mh = (struct mach_header *)&_mh_execute_header;
-#endif
-#endif /* __OPENSTEP__ */
- load_commands = (struct load_command *)
- ((char *)mh + sizeof(struct mach_header));
- lc = load_commands;
- for(i = 0; i < mh->ncmds; i++){
- if(lc->cmd == LC_LOAD_DYLIB){
- dl = (struct dylib_command *)lc;
- install_name = (char *)dl + dl->dylib.name.offset;
- if(names_match(install_name, libraryName) == TRUE)
- return(dl->dylib.current_version);
- }
- lc = (struct load_command *)((char *)lc + lc->cmdsize);
- }
- return(-1);
-}
-
-/*
- * This routine returns the current version of the named shared library the
- * program it is running against. The libraryName parameter is the same as
- * would be static link editor using the -lx or -framework Foo flags (with -lx
- * it would be "x" and with -framework Foo it would be "Foo"). If the program
- * is not using the specified library it returns -1.
- */
-int32_t
-NSVersionOfRunTimeLibrary(
-const char* libraryName)
-{
- unsigned long i, j, n;
- char *install_name;
- struct load_command *load_commands, *lc;
- struct dylib_command *dl;
- const struct mach_header *mh;
-
- n = _dyld_image_count();
- for(i = 0; i < n; i++){
- mh = _dyld_get_image_header(i);
- if(mh->filetype != MH_DYLIB)
- continue;
- load_commands = (struct load_command *)
- ((char *)mh + sizeof(struct mach_header));
- lc = load_commands;
- for(j = 0; j < mh->ncmds; j++){
- if(lc->cmd == LC_ID_DYLIB){
- dl = (struct dylib_command *)lc;
- install_name = (char *)dl + dl->dylib.name.offset;
- if(names_match(install_name, libraryName) == TRUE)
- return(dl->dylib.current_version);
- }
- lc = (struct load_command *)((char *)lc + lc->cmdsize);
- }
- }
- return(-1);
-}
-
-/*
- * NSCreateObjectFileImageFromFile() creates an NSObjectFileImage for the
- * specified file name if the file is a correct Mach-O file that can be loaded
- * with NSloadModule(). For return codes of NSObjectFileImageFailure and
- * NSObjectFileImageFormat an error message is printed to stderr. All
- * other codes cause no printing.
- */
-NSObjectFileImageReturnCode
-NSCreateObjectFileImageFromFile(
-const char* pathName,
-NSObjectFileImage *objectFileImage)
-{
- DYLD_WRITER_LOCK_THIS_BLOCK;
- static NSObjectFileImageReturnCode (*p)(const char*, NSObjectFileImage*) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_NSCreateObjectFileImageFromFile", (void**)&p);
- return p(pathName, objectFileImage);
-}
-
-
-/*
- * NSCreateObjectFileImageFromMemory() creates an NSObjectFileImage for the
- * object file mapped into memory at address of size length if the object file
- * is a correct Mach-O file that can be loaded with NSloadModule(). For return
- * codes of NSObjectFileImageFailure and NSObjectFileImageFormat an error
- * message is printed to stderr. All other codes cause no printing.
- */
-NSObjectFileImageReturnCode
-NSCreateObjectFileImageFromMemory(
-const void* address,
-size_t size,
-NSObjectFileImage *objectFileImage)
-{
- DYLD_WRITER_LOCK_THIS_BLOCK;
- static NSObjectFileImageReturnCode (*p)(const void*, size_t, NSObjectFileImage*) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_NSCreateObjectFileImageFromMemory", (void**)&p);
- return p(address, size, objectFileImage);
-}
-
-/*
- * NSCreateCoreFileImageFromFile() creates an NSObjectFileImage for the
- * specified core file name if the file is a correct Mach-O core file.
- * For return codes of NSObjectFileImageFailure and NSObjectFileImageFormat
- * an error message is printed to stderr. All other codes cause no printing.
- */
-NSObjectFileImageReturnCode
-NSCreateCoreFileImageFromFile(
-const char* pathName,
-NSObjectFileImage *objectFileImage)
-{
- DYLD_WRITER_LOCK_THIS_BLOCK;
- static NSObjectFileImageReturnCode (*p)(const char*, NSObjectFileImage*) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_NSCreateCoreFileImageFromFile", (void**)&p);
- return p(pathName, objectFileImage);
-}
-
-bool
-NSDestroyObjectFileImage(
-NSObjectFileImage objectFileImage)
-{
- DYLD_WRITER_LOCK_THIS_BLOCK;
- static bool (*p)(NSObjectFileImage) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_NSDestroyObjectFileImage", (void**)&p);
- return p(objectFileImage);
-}
-
-
-NSModule
-NSLinkModule(
-NSObjectFileImage objectFileImage,
-const char* moduleName,
-uint32_t options)
-{
- DYLD_WRITER_LOCK_THIS_BLOCK;
- static NSModule (*p)(NSObjectFileImage, const char*, unsigned long) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_NSLinkModule", (void**)&p);
-
- return p(objectFileImage, moduleName, options);
-}
-
-
-/*
- * NSFindSectionAndOffsetInObjectFileImage() takes the specified imageOffset
- * into the specified ObjectFileImage and returns the segment/section name and
- * offset into that section of that imageOffset. Returns FALSE if the
- * imageOffset is not in any section. You can used the resulting sectionOffset
- * to index into the data returned by NSGetSectionDataInObjectFileImage.
- *
- * SPI: currently only used by ZeroLink to detect +load methods
- */
-bool
-NSFindSectionAndOffsetInObjectFileImage(
-NSObjectFileImage objectFileImage,
-unsigned long imageOffset,
-const char** segmentName, /* can be NULL */
-const char** sectionName, /* can be NULL */
-unsigned long* sectionOffset) /* can be NULL */
-{
- DYLD_READER_LOCK_THIS_BLOCK;
- static bool (*p)(NSObjectFileImage, unsigned long, const char**, const char**, unsigned long*) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_NSFindSectionAndOffsetInObjectFileImage", (void**)&p);
-
- return p(objectFileImage, imageOffset, segmentName, sectionName, sectionOffset);
-}
-
-
-/*
- * NSSymbolDefinitionCountInObjectFileImage() returns the number of symbol
- * definitions in the NSObjectFileImage.
- */
-uint32_t
-NSSymbolDefinitionCountInObjectFileImage(
-NSObjectFileImage objectFileImage)
-{
- DYLD_READER_LOCK_THIS_BLOCK;
- static unsigned long (*p)(NSObjectFileImage) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_NSSymbolDefinitionCountInObjectFileImage", (void**)&p);
-
- return p(objectFileImage);
-}
-
-/*
- * NSSymbolDefinitionNameInObjectFileImage() returns the name of the i'th
- * symbol definitions in the NSObjectFileImage. If the ordinal specified is
- * outside the range [0..NSSymbolDefinitionCountInObjectFileImage], NULL will
- * be returned.
- */
-const char*
-NSSymbolDefinitionNameInObjectFileImage(
-NSObjectFileImage objectFileImage,
-uint32_t ordinal)
-{
- DYLD_READER_LOCK_THIS_BLOCK;
- static const char* (*p)(NSObjectFileImage, uint32_t) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_NSSymbolDefinitionNameInObjectFileImage", (void**)&p);
-
- return p(objectFileImage, ordinal);
-}
-
-/*
- * NSSymbolReferenceCountInObjectFileImage() returns the number of references
- * to undefined symbols the NSObjectFileImage.
- */
-uint32_t
-NSSymbolReferenceCountInObjectFileImage(
-NSObjectFileImage objectFileImage)
-{
- DYLD_READER_LOCK_THIS_BLOCK;
- static unsigned long (*p)(NSObjectFileImage) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_NSSymbolReferenceCountInObjectFileImage", (void**)&p);
-
- return p(objectFileImage);
-}
-
-/*
- * NSSymbolReferenceNameInObjectFileImage() returns the name of the i'th
- * undefined symbol in the NSObjectFileImage. If the ordinal specified is
- * outside the range [0..NSSymbolReferenceCountInObjectFileImage], NULL will be
- * returned.
- */
-const char*
-NSSymbolReferenceNameInObjectFileImage(
-NSObjectFileImage objectFileImage,
-uint32_t ordinal,
-bool *tentative_definition) /* can be NULL */
-{
- DYLD_READER_LOCK_THIS_BLOCK;
- static const char* (*p)(NSObjectFileImage, uint32_t, bool*) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_NSSymbolReferenceNameInObjectFileImage", (void**)&p);
-
- return p(objectFileImage, ordinal, tentative_definition);
-}
-
-/*
- * NSIsSymbolDefinedInObjectFileImage() returns TRUE if the specified symbol
- * name has a definition in the NSObjectFileImage and FALSE otherwise.
- */
-bool
-NSIsSymbolDefinedInObjectFileImage(
-NSObjectFileImage objectFileImage,
-const char* symbolName)
-{
- DYLD_READER_LOCK_THIS_BLOCK;
- static bool (*p)(NSObjectFileImage, const char*) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_NSIsSymbolDefinedInObjectFileImage", (void**)&p);
-
- return p(objectFileImage, symbolName);
-}
-
-/*
- * NSGetSectionDataInObjectFileImage() returns a pointer to the section contents
- * in the NSObjectFileImage for the specified segmentName and sectionName if
- * it exists and it is not a zerofill section. If not it returns NULL. If
- * the parameter size is not NULL the size of the section is also returned
- * indirectly through that pointer.
- */
-void *
-NSGetSectionDataInObjectFileImage(
-NSObjectFileImage objectFileImage,
-const char* segmentName,
-const char* sectionName,
-unsigned long *size) /* can be NULL */
-{
- DYLD_READER_LOCK_THIS_BLOCK;
- static void* (*p)(NSObjectFileImage, const char*, const char*, unsigned long*) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_NSGetSectionDataInObjectFileImage", (void**)&p);
-
- return p(objectFileImage, segmentName, sectionName, size);
-}
-
-/*
- * NSHasModInitObjectFileImage() returns TRUE if the NSObjectFileImage has any
- * module initialization sections and FALSE it it does not.
- *
- * SPI: currently only used by ZeroLink to detect C++ initializers
- */
-bool
-NSHasModInitObjectFileImage(
-NSObjectFileImage objectFileImage)
-{
- DYLD_READER_LOCK_THIS_BLOCK;
- static bool (*p)(NSObjectFileImage) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_NSHasModInitObjectFileImage", (void**)&p);
-
- return p(objectFileImage);
-}
-
-void
-NSLinkEditError(
-NSLinkEditErrors *c,
-int *errorNumber,
-const char* *fileName,
-const char* *errorString)
-{
- DYLD_WRITER_LOCK_THIS_BLOCK;
- static void (*p)(NSLinkEditErrors *c,
- int *errorNumber,
- const char* *fileName,
- const char* *errorString) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_link_edit_error", (void**)&p);
- if(p != NULL)
- p(c, errorNumber, fileName, errorString);
-}
-
-bool
-NSUnLinkModule(
-NSModule module,
-uint32_t options)
-{
- DYLD_WRITER_LOCK_THIS_BLOCK;
- static bool (*p)(NSModule module, uint32_t options) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_unlink_module", (void**)&p);
-
- return p(module, options);
-}
-
-NSModule
-NSReplaceModule(
-NSModule moduleToReplace,
-NSObjectFileImage newObjectFileImage,
-uint32_t options)
-{
- return(NULL);
-}
-
-/*
- *_NSGetExecutablePath copies the path of the executable into the buffer and
- * returns 0 if the path was successfully copied in the provided buffer. If the
- * buffer is not large enough, -1 is returned and the expected buffer size is
- * copied in *bufsize. Note that _NSGetExecutablePath will return "a path" to
- * the executable not a "real path" to the executable. That is the path may be
- * a symbolic link and not the real file. And with deep directories the total
- * bufsize needed could be more than MAXPATHLEN.
- */
-int
-_NSGetExecutablePath(
-char *buf,
-uint32_t *bufsize)
-{
- DYLD_READER_LOCK_THIS_BLOCK;
- static int (*p)(char *buf, uint32_t *bufsize) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld__NSGetExecutablePath", (void**)&p);
- return(p(buf, bufsize));
-}
-
-void
-_dyld_lookup_and_bind(
-const char* symbol_name,
-void** address,
-NSModule* module)
-{
- DYLD_WRITER_LOCK_THIS_BLOCK;
- static void (*p)(const char*, void** , NSModule*) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_lookup_and_bind", (void**)&p);
- p(symbol_name, address, module);
-}
-
-void
-_dyld_lookup_and_bind_with_hint(
-const char* symbol_name,
-const char* library_name_hint,
-void** address,
-NSModule* module)
-{
- DYLD_WRITER_LOCK_THIS_BLOCK;
- static void (*p)(const char*, const char*, void**, NSModule*) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_lookup_and_bind_with_hint", (void**)&p);
- p(symbol_name, library_name_hint, address, module);
-}
-
-void
-_dyld_lookup_and_bind_objc(
-const char* symbol_name,
-void** address,
-NSModule* module)
-{
- DYLD_WRITER_LOCK_THIS_BLOCK;
- static void (*p)(const char* , void**, NSModule*) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_lookup_and_bind_objc", (void**)&p);
- p(symbol_name, address, module);
-}
-
-void
-_dyld_lookup_and_bind_fully(
-const char* symbol_name,
-void** address,
-NSModule* module)
-{
- DYLD_WRITER_LOCK_THIS_BLOCK;
- static void (*p)(const char*, void**, NSModule*) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_lookup_and_bind_fully", (void**)&p);
- p(symbol_name, address, module);
-}
-
-bool
-_dyld_bind_fully_image_containing_address(
-const void* address)
-{
- DYLD_WRITER_LOCK_THIS_BLOCK;
- static bool (*p)(const void*) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_bind_fully_image_containing_address", (void**)&p);
- return p(address);
-}
-
-
-/*
- * _dyld_register_func_for_add_image registers the specified function to be
- * called when a new image is added (a bundle or a dynamic shared library) to
- * the program. When this function is first registered it is called for once
- * for each image that is currently part of the program.
- */
-void
-_dyld_register_func_for_add_image(
-void (*func)(const struct mach_header *mh, intptr_t vmaddr_slide))
-{
- DYLD_WRITER_LOCK_THIS_BLOCK;
- static void (*p)(void (*func)(const struct mach_header *mh, intptr_t vmaddr_slide)) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_register_func_for_add_image", (void**)&p);
- p(func);
-}
-
-/*
- * _dyld_register_func_for_remove_image registers the specified function to be
- * called when an image is removed (a bundle or a dynamic shared library) from
- * the program.
- */
-void
-_dyld_register_func_for_remove_image(
-void (*func)(const struct mach_header *mh, intptr_t vmaddr_slide))
-{
- DYLD_WRITER_LOCK_THIS_BLOCK;
- static void (*p)(void (*func)(const struct mach_header *mh, intptr_t vmaddr_slide)) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_register_func_for_remove_image", (void**)&p);
- p(func);
-}
-
-/*
- * _dyld_register_func_for_link_module registers the specified function to be
- * called when a module is bound into the program. When this function is first
- * registered it is called for once for each module that is currently bound into
- * the program.
- */
-void
-_dyld_register_func_for_link_module(
-void (*func)(NSModule module))
-{
- DYLD_WRITER_LOCK_THIS_BLOCK;
- static void (*p)(void (*func)(NSModule module)) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_register_func_for_link_module", (void**)&p);
- p(func);
-}
-
-/*
- * _dyld_register_func_for_unlink_module registers the specified function to be
- * called when a module is unbound from the program.
- */
-void
-_dyld_register_func_for_unlink_module(
-void (*func)(NSModule module))
-{
- DYLD_WRITER_LOCK_THIS_BLOCK;
- static void (*p)(void (*func)(NSModule module)) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_register_func_for_unlink_module", (void**)&p);
- p(func);
-}
-
-/*
- * _dyld_register_func_for_replace_module registers the specified function to be
- * called when a module is to be replace with another module in the program.
- */
-void
-_dyld_register_func_for_replace_module(
-void (*func)(NSModule oldmodule, NSModule newmodule))
-{
- DYLD_WRITER_LOCK_THIS_BLOCK;
- static void (*p)(void (*func)(NSModule oldmodule,
- NSModule newmodule)) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_register_func_for_replace_module", (void**)&p);
- p(func);
-}
-
-
-/*
- * _dyld_get_objc_module_sect_for_module is passed a module and sets a
- * pointer to the (__OBJC,__module) section and its size for the specified
- * module.
- */
-void
-_dyld_get_objc_module_sect_for_module(
-NSModule module,
-void **objc_module,
-unsigned long *size)
-{
- DYLD_READER_LOCK_THIS_BLOCK;
- static void (*p)(NSModule module,
- void **objc_module,
- unsigned long *size) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_get_objc_module_sect_for_module", (void**)&p);
- p(module, objc_module, size);
-}
-
-/*
- * _dyld_bind_objc_module() is passed a pointer to something in an (__OBJC,
- * __module) section and causes the module that is associated with that address
- * to be bound.
- */
-void
-_dyld_bind_objc_module(
-const void* objc_module)
-{
- DYLD_READER_LOCK_THIS_BLOCK;
- static void (*p)(const void *objc_module) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_bind_objc_module", (void**)&p);
- p(objc_module);
-}
-
-
-#if __DYNAMIC__
-bool
-_dyld_present(
-void)
-{
- // hmmm, this code is in libSystem.dylib, which is loaded by dyld...
- return true;
-}
-#endif
-
-uint32_t
-_dyld_image_count(
-void)
-{
- DYLD_NO_LOCK_THIS_BLOCK;
- static unsigned long (*p)(void) = NULL;
-
- if(_dyld_present() == 0)
- return(0);
- if(p == NULL)
- _dyld_func_lookup("__dyld_image_count", (void**)&p);
- return(p());
-}
-
-const struct mach_header *
-_dyld_get_image_header(
-uint32_t image_index)
-{
- DYLD_NO_LOCK_THIS_BLOCK;
- static struct mach_header * (*p)(uint32_t image_index) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_get_image_header", (void**)&p);
- return(p(image_index));
-}
-
-intptr_t
-_dyld_get_image_vmaddr_slide(
-uint32_t image_index)
-{
- DYLD_NO_LOCK_THIS_BLOCK;
- static unsigned long (*p)(uint32_t image_index) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_get_image_vmaddr_slide", (void**)&p);
- return(p(image_index));
-}
-
-const char*
-_dyld_get_image_name(
-uint32_t image_index)
-{
- DYLD_NO_LOCK_THIS_BLOCK;
- static const char* (*p)(uint32_t image_index) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_get_image_name", (void**)&p);
- return(p(image_index));
-}
-
-bool
-_dyld_image_containing_address(
-const void* address)
-{
- DYLD_READER_LOCK_THIS_BLOCK;
- static bool (*p)(const void*) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_image_containing_address", (void**)&p);
- return(p(address));
-}
-
-const struct mach_header *
-_dyld_get_image_header_containing_address(
-const void* address)
-{
- DYLD_READER_LOCK_THIS_BLOCK;
- static const struct mach_header * (*p)(const void*) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_get_image_header_containing_address", (void**)&p);
- return p(address);
-}
-
-void _dyld_moninit(
-void (*monaddition)(char *lowpc, char *highpc))
-{
- DYLD_READER_LOCK_THIS_BLOCK;
- static void (*p)(void (*monaddition)(char *lowpc, char *highpc)) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_moninit", (void**)&p);
- p(monaddition);
-}
-
-bool _dyld_launched_prebound(
-void)
-{
- DYLD_READER_LOCK_THIS_BLOCK;
- static bool (*p)(void) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_launched_prebound", (void**)&p);
- return(p());
-}
-
-bool _dyld_all_twolevel_modules_prebound(
-void)
-{
- DYLD_READER_LOCK_THIS_BLOCK;
- static bool (*p)(void) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_all_twolevel_modules_prebound", (void**)&p);
- return(p());
-}
-
-
-#include <dlfcn.h>
-#include <stddef.h>
-#include <pthread.h>
-#include <stdlib.h>
-#include <mach-o/dyld.h>
-#include "dyldLock.h"
-#include "dyldLibSystemThreadHelpers.h"
-
-// pthread key used to access per-thread dlerror message
-static pthread_key_t dlerrorPerThreadKey;
-
-// data kept per-thread
-struct dlerrorPerThreadData
-{
- uint32_t sizeAllocated;
- char message[1];
-};
-
-// function called by dyld to get buffer to store dlerror message
-static char* getPerThreadBufferFor_dlerror(uint32_t sizeRequired)
-{
- const int size = (sizeRequired < 256) ? 256 : sizeRequired;
- dlerrorPerThreadData* data = (dlerrorPerThreadData*)pthread_getspecific(dlerrorPerThreadKey);
- if ( data == NULL ) {
- //int mallocSize = offsetof(dlerrorPerThreadData, message[size]);
- const int mallocSize = sizeof(dlerrorPerThreadData)+size;
- data = (dlerrorPerThreadData*)malloc(mallocSize);
- data->sizeAllocated = size;
- pthread_setspecific(dlerrorPerThreadKey, data);
- }
- else if ( data->sizeAllocated < sizeRequired ) {
- free(data);
- //int mallocSize = offsetof(dlerrorPerThreadData, message[size]);
- const int mallocSize = sizeof(dlerrorPerThreadData)+size;
- data = (dlerrorPerThreadData*)malloc(mallocSize);
- data->sizeAllocated = size;
- pthread_setspecific(dlerrorPerThreadKey, data);
- }
- return data->message;
-}
-
-// that table passed to dyld containing thread helpers
-static dyld::ThreadingHelpers sThreadHelpers = { 1, &lockForLazyBinding, &unlockForLazyBinding, &getPerThreadBufferFor_dlerror };
-
-//
-// during initialization of libSystem this routine will run
-// and call dyld, registering the threading helpers.
-//
-//
-static int registerWithDyld()
-{
- static void (*p)(dyld::ThreadingHelpers*) = NULL;
-
- // create key and tell pthread package to call free() on any data associated with key if thread dies
- pthread_key_create(&dlerrorPerThreadKey, &free);
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_register_thread_helpers", (void**)&p);
- if(p != NULL)
- p(&sThreadHelpers);
-
- return 0;
-}
-
-// should be able to use __attribute__((constructor)) on registerWithDyld, but compiler has bug (3679135)
-// instead use initialization of global to force it to run.
-static int hack = registerWithDyld();
-
-
-char* dlerror()
-{
- DYLD_READER_LOCK_THIS_BLOCK;
- static char* (*p)() = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_dlerror", (void**)&p);
- return(p());
-}
-
-int dladdr(const void* addr, Dl_info* info)
-{
- DYLD_READER_LOCK_THIS_BLOCK;
- static int (*p)(const void* , Dl_info*) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_dladdr", (void**)&p);
- return(p(addr, info));
-}
-
-int dlclose(void* handle)
-{
- DYLD_WRITER_LOCK_THIS_BLOCK;
- static int (*p)(void* handle) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_dlclose", (void**)&p);
- return(p(handle));
-}
-
-void* dlopen(const char* path, int mode)
-{
- DYLD_WRITER_LOCK_THIS_BLOCK;
- static void* (*p)(const char* path, int) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_dlopen", (void**)&p);
- return(p(path, mode));
-}
-
-void* dlsym(void* handle, const char* symbol)
-{
- DYLD_READER_LOCK_THIS_BLOCK;
- static void* (*p)(void* handle, const char* symbol) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_dlsym", (void**)&p);
- return(p(handle, symbol));
-}
-
-
-
-
-