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--- dyld/dyld-360.21/src/dyldAPIs.cpp
+++ dyld/dyld-210.2.3/src/dyldAPIs.cpp
@@ -70,7 +70,6 @@
#define DEPRECATED_APIS_SUPPORTED 1
#endif
-static bool sDynamicInterposing = false;
#if DEPRECATED_APIS_SUPPORTED
static char sLastErrorFilePath[1024];
@@ -101,7 +100,7 @@
static void client_dyld_lookup_and_bind(const char* symbolName, void** address, NSModule* module);
static bool client_NSIsSymbolNameDefined(const char* symbolName);
#endif // DEPRECATED_APIS_SUPPORTED
-#if SUPPORT_ZERO_COST_EXCEPTIONS
+#if !__arm__
static bool client_dyld_find_unwind_sections(void* addr, dyld_unwind_sections* info);
#endif
@@ -135,25 +134,23 @@
{"__dyld_dyld_register_image_state_change_handler", (void*)dyld_register_image_state_change_handler },
{"__dyld_register_thread_helpers", (void*)registerThreadHelpers },
{"__dyld_fork_child", (void*)_dyld_fork_child },
+ {"__dyld_moninit", (void*)_dyld_moninit },
{"__dyld_make_delayed_module_initializer_calls", (void*)_dyld_make_delayed_module_initializer_calls },
{"__dyld_get_all_image_infos", (void*)_dyld_get_all_image_infos },
-#if SUPPORT_ZERO_COST_EXCEPTIONS
+#if !__arm__
{"__dyld_find_unwind_sections", (void*)client_dyld_find_unwind_sections },
#endif
-#if __i386__ || __x86_64__ || __arm__ || __arm64__
+#if __i386__ || __x86_64__ || __arm__
{"__dyld_fast_stub_entry", (void*)dyld::fastBindLazySymbol },
#endif
{"__dyld_image_path_containing_address", (void*)dyld_image_path_containing_address },
+#if __IPHONE_OS_VERSION_MIN_REQUIRED
{"__dyld_shared_cache_some_image_overridden", (void*)dyld_shared_cache_some_image_overridden },
- {"__dyld_process_is_restricted", (void*)dyld::processIsRestricted },
- {"__dyld_dynamic_interpose", (void*)dyld_dynamic_interpose },
-#if DYLD_SHARED_CACHE_SUPPORT
- {"__dyld_shared_cache_file_path", (void*)dyld::getStandardSharedCacheFilePath },
#endif
- {"__dyld_get_image_header_containing_address", (void*)dyld_image_header_containing_address },
// deprecated
#if DEPRECATED_APIS_SUPPORTED
+ {"__dyld_get_image_header_containing_address", (void*)_dyld_get_image_header_containing_address },
{"__dyld_lookup_and_bind", (void*)client_dyld_lookup_and_bind },
{"__dyld_lookup_and_bind_with_hint", (void*)_dyld_lookup_and_bind_with_hint },
{"__dyld_lookup_and_bind_fully", (void*)_dyld_lookup_and_bind_fully },
@@ -242,9 +239,6 @@
const void* imageBaseAddress; // not used with OFI created from files
size_t imageLength; // not used with OFI created from files
};
-
-
-VECTOR_NEVER_DESTRUCTED(NSObjectFileImage);
static std::vector<NSObjectFileImage> sObjectFileImages;
@@ -285,7 +279,7 @@
dyld::log("%s(...)\n", __func__);
const char* exePath = dyld::getExecutablePath();
if(*bufsize < strlen(exePath) + 1){
- *bufsize = (uint32_t)(strlen(exePath) + 1);
+ *bufsize = strlen(exePath) + 1;
return -1;
}
strcpy(buf, exePath);
@@ -344,7 +338,7 @@
return NULL;
}
-const struct mach_header * dyld_image_header_containing_address(const void* address)
+const struct mach_header * _dyld_get_image_header_containing_address(const void* address)
{
if ( dyld::gLogAPIs )
dyld::log("%s(%p)\n", __func__, address);
@@ -548,7 +542,7 @@
if ( image != NULL ) {
if ( context.matchByInstallName )
image->setMatchInstallPath(true);
- dyld::link(image, false, false, callersRPaths);
+ dyld::link(image, false, callersRPaths);
dyld::runInitializers(image);
// images added with NSAddImage() can never be unloaded
image->setNeverUnload();
@@ -978,9 +972,6 @@
dyld::clearErrorMessage();
try {
- if ( (options & NSLINKMODULE_OPTION_CAN_UNLOAD) != 0 )
- objectFileImage->image->setCanUnload();
-
// NSLinkModule allows a bundle to be link multpile times
// each link causes the bundle to be copied to a new address
if ( objectFileImage->image->isLinked() ) {
@@ -1007,7 +998,7 @@
bool forceLazysBound = ( (options & NSLINKMODULE_OPTION_BINDNOW) != 0 );
// load libraries, rebase, bind, to make this image usable
- dyld::link(objectFileImage->image, forceLazysBound, false, ImageLoader::RPathChain(NULL,NULL));
+ dyld::link(objectFileImage->image, forceLazysBound, ImageLoader::RPathChain(NULL,NULL));
// bump reference count to keep this bundle from being garbage collected
objectFileImage->image->incrementDlopenReferenceCount();
@@ -1053,7 +1044,7 @@
bool forceLazysBound = ( (options & NSLINKMODULE_OPTION_BINDNOW) != 0 );
// load libraries, rebase, bind, to make this image usable
- dyld::link(image, forceLazysBound, false, ImageLoader::RPathChain(NULL,NULL));
+ dyld::link(image, forceLazysBound, ImageLoader::RPathChain(NULL,NULL));
// run initializers unless magic flag says not to
if ( (options & NSLINKMODULE_OPTION_DONT_CALL_MOD_INIT_ROUTINES) == 0 )
@@ -1116,19 +1107,6 @@
ImageLoader* image = NSModuleToImageLoader(module);
if ( image == NULL )
return false;
- dyld::runImageStaticTerminators(image);
- if ( (dyld::gLibSystemHelpers != NULL) && (dyld::gLibSystemHelpers->version >= 13) ) {
- __cxa_range_t ranges[image->segmentCount()];
- int rangeCount = 0;
- for (unsigned int j=0; j < image->segmentCount(); ++j) {
- if ( !image->segExecutable(j) )
- continue;
- ranges[rangeCount].addr = (const void*)image->segActualLoadAddress(j);
- ranges[rangeCount].length = image->segSize(j);
- ++rangeCount;
- }
- (*dyld::gLibSystemHelpers->cxa_finalize_ranges)(ranges, rangeCount);
- }
dyld::removeImage(image);
if ( (options & NSUNLINKMODULE_OPTION_KEEP_MEMORY_MAPPED) != 0 )
@@ -1204,11 +1182,32 @@
// If dyld is sending load/unload notices to CoreSymbolication, the shared memory
// page is not copied on fork. <rdar://problem/6797342>
// NULL the CoreSymbolication shared memory pointer to prevent a crash.
- dyld::gProcessInfo->coreSymbolicationShmPage = NULL;
+ dyld_all_image_infos.coreSymbolicationShmPage = NULL;
// for safety, make sure child starts with clean systemOrderFlag
- dyld::gProcessInfo->systemOrderFlag = 0;
-}
-
+ dyld_all_image_infos.systemOrderFlag = 0;
+}
+
+typedef void (*MonitorProc)(char *lowpc, char *highpc);
+
+static void monInitCallback(ImageLoader* image, void* userData)
+{
+ MonitorProc proc = (MonitorProc)userData;
+ void* start;
+ size_t length;
+ if ( image->getSectionContent("__TEXT", "__text", &start, &length) ) {
+ proc((char*)start, (char*)start+length);
+ }
+}
+
+//
+// _dyld_moninit is called from profiling runtime routine moninit().
+// dyld calls back with the range of each __TEXT/__text section in every
+// linked image.
+//
+void _dyld_moninit(MonitorProc proc)
+{
+ dyld::forEachImageDo(&monInitCallback, (void*)proc);
+}
#if DEPRECATED_APIS_SUPPORTED
// returns true if prebinding was used in main executable
@@ -1243,13 +1242,13 @@
#endif // DEPRECATED_APIS_SUPPORTED
-int _dyld_func_lookup(const char* name, void** address)
+bool lookupDyldFunction(const char* name, uintptr_t* address)
{
for (const dyld_func* p = dyld_funcs; p->name != NULL; ++p) {
if ( strcmp(p->name, name) == 0 ) {
if( p->implementation == unimplemented )
dyld::log("unimplemented dyld function: %s\n", p->name);
- *address = p->implementation;
+ *address = (uintptr_t)p->implementation;
return true;
}
}
@@ -1263,9 +1262,9 @@
dyld::gLibSystemHelpers = helpers;
// let gdb know it is safe to run code in inferior that might call malloc()
- dyld::gProcessInfo->libSystemInitialized = true;
-
-#if !SUPPORT_ZERO_COST_EXCEPTIONS
+ dyld_all_image_infos.libSystemInitialized = true;
+
+#if __arm__
if ( helpers->version >= 5 ) {
// create key use by dyld exception handling
pthread_key_t key;
@@ -1280,13 +1279,6 @@
static void dlerrorClear()
{
if ( dyld::gLibSystemHelpers != NULL ) {
- // <rdar://problem/10595338> dlerror buffer leak
- // dlerrorClear() should not force allocation, but zero it if already allocated
- if ( dyld::gLibSystemHelpers->version >= 10 ) {
- if ( ! (*dyld::gLibSystemHelpers->hasPerThreadBufferFor_dlerror)() )
- return;
- }
-
// first char of buffer is flag whether string (starting at second char) is valid
char* buffer = (*dyld::gLibSystemHelpers->getThreadBufferFor_dlerror)(2);
buffer[0] = '\0';
@@ -1420,16 +1412,15 @@
void* result = NULL;
ImageLoader* image = NULL;
std::vector<const char*> rpathsFromCallerImage;
- ImageLoader::RPathChain callersRPaths(NULL, &rpathsFromCallerImage);
try {
void* callerAddress = __builtin_return_address(1); // note layers: 1: real client, 0: libSystem glue
ImageLoader* callerImage = dyld::findImageContainingAddress(callerAddress);
- if ( (mode & RTLD_NOLOAD) == 0 ) {
- // for dlopen, use rpath from caller image and from main executable
- if ( callerImage != NULL )
- callerImage->getRPaths(dyld::gLinkContext, rpathsFromCallerImage);
- if ( callerImage != dyld::mainExecutable() )
- dyld::mainExecutable()->getRPaths(dyld::gLinkContext, rpathsFromCallerImage);
+ // for dlopen, use rpath from caller image and from main executable
+ if ( callerImage != NULL )
+ callerImage->getRPaths(dyld::gLinkContext, rpathsFromCallerImage);
+ ImageLoader::RPathChain callersRPaths(NULL, &rpathsFromCallerImage);
+ if ( callerImage != dyld::mainExecutable() ) {
+ dyld::mainExecutable()->getRPaths(dyld::gLinkContext, rpathsFromCallerImage);
}
const bool leafName = (strchr(path, '/') == NULL);
@@ -1477,7 +1468,7 @@
if ( (mode & RTLD_NOLOAD) == 0 ) {
bool alreadyLinked = image->isLinked();
bool forceLazysBound = ( (mode & RTLD_NOW) != 0 );
- dyld::link(image, forceLazysBound, false, callersRPaths);
+ dyld::link(image, forceLazysBound, callersRPaths);
if ( ! alreadyLinked ) {
// only hide exports if image is not already in use
if ( (mode & RTLD_LOCAL) != 0 )
@@ -1523,12 +1514,9 @@
// load() succeeded but, link() failed
// back down reference count and do GC
image->decrementDlopenReferenceCount();
- if ( image->dlopenCount() == 0 )
- dyld::garbageCollectImages();
+ dyld::garbageCollectImages();
}
const char* str = dyld::mkstringf("dlopen(%s, %d): %s", path, mode, msg);
- if ( dyld::gLogAPIs )
- dyld::log(" %s() failed, error: '%s'\n", __func__, str);
dlerrorSet(str);
free((void*)str);
free((void*)msg); // our free() will do nothing if msg is a string literal
@@ -1549,8 +1537,6 @@
CRSetCrashLogMessage(NULL);
dyld::gLibSystemHelpers->releaseGlobalDyldLock();
}
- if ( dyld::gLogAPIs && (result != NULL) )
- dyld::log(" %s(%s) ==> %p\n", __func__, path, result);
return result;
}
@@ -1576,8 +1562,7 @@
return -1;
}
// remove image if reference count went to zero
- if ( image->dlopenCount() == 0 )
- dyld::garbageCollectImages();
+ dyld::garbageCollectImages();
return 0;
}
else {
@@ -1637,12 +1622,6 @@
dyld::log("%s()\n", __func__);
if ( dyld::gLibSystemHelpers != NULL ) {
- // if using newer libdyld.dylib and buffer if buffer not yet allocated, return NULL
- if ( dyld::gLibSystemHelpers->version >= 10 ) {
- if ( ! (*dyld::gLibSystemHelpers->hasPerThreadBufferFor_dlerror)() )
- return NULL;
- }
-
// first char of buffer is flag whether string (starting at second char) is valid
char* buffer = (*dyld::gLibSystemHelpers->getThreadBufferFor_dlerror)(2);
if ( buffer[0] != '\0' ) { // if valid buffer
@@ -1738,13 +1717,7 @@
if ( sym != NULL ) {
CRSetCrashLogMessage(NULL);
- ImageLoader* callerImage = NULL;
- if ( sDynamicInterposing ) {
- // only take time to look up caller, if dynamic interposing in use
- void* callerAddress = __builtin_return_address(1); // note layers: 1: real client, 0: libSystem glue
- callerImage = dyld::findImageContainingAddress(callerAddress);
- }
- return (void*)image->getExportedSymbolAddress(sym, dyld::gLinkContext, callerImage);
+ return (void*)image->getExportedSymbolAddress(sym, dyld::gLinkContext);
}
const char* str = dyld::mkstringf("dlsym(%p, %s): symbol not found", handle, symbolName);
dlerrorSet(str);
@@ -1768,10 +1741,10 @@
const struct dyld_all_image_infos* _dyld_get_all_image_infos()
{
- return dyld::gProcessInfo;
-}
-
-#if SUPPORT_ZERO_COST_EXCEPTIONS
+ return &dyld_all_image_infos;
+}
+
+#if !__arm__
static bool client_dyld_find_unwind_sections(void* addr, dyld_unwind_sections* info)
{
//if ( dyld::gLogAPIs )
@@ -1811,40 +1784,12 @@
+#if __IPHONE_OS_VERSION_MIN_REQUIRED
bool dyld_shared_cache_some_image_overridden()
{
- #if DYLD_SHARED_CACHE_SUPPORT
return dyld::gSharedCacheOverridden;
- #else
- return true;
- #endif
-}
-
-
-void dyld_dynamic_interpose(const struct mach_header* mh, const struct dyld_interpose_tuple array[], size_t count)
-{
- if ( mh == NULL )
- return;
- if ( array == NULL )
- return;
- if ( count == 0 )
- return;
- ImageLoader* image = dyld::findImageByMachHeader(mh);
- if ( image == NULL )
- return;
-
- // make pass at bound references in this image and update them
- dyld::gLinkContext.dynamicInterposeArray = array;
- dyld::gLinkContext.dynamicInterposeCount = count;
- image->dynamicInterpose(dyld::gLinkContext);
- dyld::gLinkContext.dynamicInterposeArray = NULL;
- dyld::gLinkContext.dynamicInterposeCount = 0;
-
- // leave interposing info so any future (lazy) binding will get it too
- image->addDynamicInterposingTuples(array, count);
-
- sDynamicInterposing = true;
-}
-
-
-
+}
+#endif
+
+
+