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--- dyld/dyld-655.1.1/src/dyldAPIsInLibSystem.cpp
+++ dyld/dyld-732.8/src/dyldAPIsInLibSystem.cpp
@@ -31,23 +31,29 @@
#include <System/sys/csr.h>
#include <crt_externs.h>
#include <Availability.h>
+#if !TARGET_OS_DRIVERKIT
#include <vproc_priv.h>
-
+#endif
#include <dirent.h>
+#include <sys/types.h>
#include <sys/stat.h>
-
-#include "mach-o/dyld_images.h"
-#include "mach-o/dyld.h"
-#include "mach-o/dyld_priv.h"
+#include <fcntl.h>
+#include <System/sys/codesign.h>
+
+#include <mach-o/dyld_images.h>
+#include <mach-o/dyld.h>
+#include <mach-o/dyld_priv.h>
+
#include "dyld_cache_format.h"
+#include "objc-shared-cache.h"
#include "ImageLoader.h"
#include "dyldLock.h"
-#include "../dyld3/APIs.h"
-#include "../dyld3/AllImages.h"
-#include "../dyld3/StartGlue.h"
-#include "../dyld3/Tracing.h"
+#include "APIs.h"
+#include "AllImages.h"
+#include "StartGlue.h"
+#include "Tracing.h"
// this was in dyld_priv.h but it is no longer exported
@@ -65,75 +71,18 @@
//
extern "C" int _dyld_func_lookup(const char* dyld_func_name, void **address);
+#if TARGET_OS_IOS && !TARGET_OS_SIMULATOR
+namespace dyld3 {
+ extern int compatFuncLookup(const char* name, void** address) __API_AVAILABLE(ios(13.0));
+}
+extern "C" void setLookupFunc(void*);
+#endif
+
extern bool gUseDyld3;
-#ifndef LC_VERSION_MIN_MACOSX
- #define LC_VERSION_MIN_MACOSX 0x24
- struct version_min_command {
- uint32_t cmd; /* LC_VERSION_MIN_MACOSX or
- LC_VERSION_MIN_IPHONEOS */
- uint32_t cmdsize; /* sizeof(struct min_version_command) */
- uint32_t version; /* X.Y.Z is encoded in nibbles xxxx.yy.zz */
- uint32_t sdk; /* X.Y.Z is encoded in nibbles xxxx.yy.zz */
- };
-#endif
-
-#ifndef LC_VERSION_MIN_IPHONEOS
- #define LC_VERSION_MIN_IPHONEOS 0x25
-#endif
-
-#ifndef LC_VERSION_MIN_TVOS
- #define LC_VERSION_MIN_TVOS 0x2F
-#endif
-
-#ifndef LC_VERSION_MIN_WATCHOS
- #define LC_VERSION_MIN_WATCHOS 0x30
-#endif
-
-
-#ifndef LC_LOAD_UPWARD_DYLIB
- #define LC_LOAD_UPWARD_DYLIB (0x23|LC_REQ_DYLD) /* load of dylib whose initializers run later */
-#endif
-
-#ifndef LC_BUILD_VERSION
- #define LC_BUILD_VERSION 0x32 /* build for platform min OS version */
-
- /*
- * The build_version_command contains the min OS version on which this
- * binary was built to run for its platform. The list of known platforms and
- * tool values following it.
- */
- struct build_version_command {
- uint32_t cmd; /* LC_BUILD_VERSION */
- uint32_t cmdsize; /* sizeof(struct build_version_command) plus */
- /* ntools * sizeof(struct build_tool_version) */
- uint32_t platform; /* platform */
- uint32_t minos; /* X.Y.Z is encoded in nibbles xxxx.yy.zz */
- uint32_t sdk; /* X.Y.Z is encoded in nibbles xxxx.yy.zz */
- uint32_t ntools; /* number of tool entries following this */
- };
-
- struct build_tool_version {
- uint32_t tool; /* enum for the tool */
- uint32_t version; /* version number of the tool */
- };
-
- /* Known values for the platform field above. */
- #define PLATFORM_MACOS 1
- #define PLATFORM_IOS 2
- #define PLATFORM_TVOS 3
- #define PLATFORM_WATCHOS 4
- #define PLATFORM_BRIDGEOS 5
-
- /* Known values for the tool field above. */
- #define TOOL_CLANG 1
- #define TOOL_SWIFT 2
- #define TOOL_LD 3
-#endif
-
// deprecated APIs are still availble on Mac OS X, but not on iPhone OS
-#if __IPHONE_OS_VERSION_MIN_REQUIRED
+#if __IPHONE_OS_VERSION_MIN_REQUIRED || TARGET_OS_DRIVERKIT
#define DEPRECATED_APIS_SUPPORTED 0
#else
#define DEPRECATED_APIS_SUPPORTED 1
@@ -677,21 +626,15 @@
}
dyld_platform_t dyld_get_active_platform(void) {
- if (gUseDyld3)
- return dyld3::dyld_get_active_platform();
-
- // HACK
- // Most of the new version SPIs have pure dyld3 implementations, but
- // They cannot get to the main executable, so we implement this here
- // and they can use this by calling ::dyld_get_active_platform() in the root namespace
- static dyld_platform_t sActivePlatform = 0;
- if (sActivePlatform) return sActivePlatform;
-
+ if (gUseDyld3) { return dyld3::dyld_get_active_platform(); }
+ if (_dyld_get_all_image_infos()->version >= 16) { return (dyld_platform_t)_dyld_get_all_image_infos()->platform; }
+
+ __block dyld_platform_t result;
+ // FIXME: Remove this once we only care about version 16 or greater all image infos
dyld3::dyld_get_image_versions((mach_header*)_NSGetMachExecuteHeader(), ^(dyld_platform_t platform, uint32_t sdk_version, uint32_t min_version) {
- sActivePlatform = platform;
- //FIXME assert there is only one?
+ result = platform;
});
- return sActivePlatform;
+ return result;
}
dyld_platform_t dyld_get_base_platform(dyld_platform_t platform) {
@@ -765,6 +708,15 @@
size_t size,
NSObjectFileImage *objectFileImage)
{
+ // <rdar://problem/51812762> NSCreatObjectFileImageFromMemory fail opaquely if Hardened runtime is enabled
+ uint32_t flags;
+ if ( csops(0, CS_OPS_STATUS, &flags, sizeof(flags)) != -1 ) {
+ if ( (flags & (CS_ENFORCEMENT|CS_KILL)) == (CS_ENFORCEMENT|CS_KILL) ) {
+ //fprintf(stderr, "dyld: warning: NSCreatObjectFileImageFromMemory() cannot be used in harden process 0x%08X\n", flags);
+ return NSObjectFileImageAccess;
+ }
+ }
+
if ( gUseDyld3 )
return dyld3::NSCreateObjectFileImageFromMemory(address, size, objectFileImage);
@@ -1308,15 +1260,8 @@
// SPI in Mac OS X 10.6
intptr_t _dyld_get_image_slide(const struct mach_header* mh)
{
- if ( gUseDyld3 )
- return dyld3::_dyld_get_image_slide(mh);
-
- DYLD_NO_LOCK_THIS_BLOCK;
- static intptr_t (*p)(const struct mach_header*) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_get_image_slide", (void**)&p);
- return(p(mh));
+ // always use dyld3 version because it does better error handling
+ return dyld3::_dyld_get_image_slide(mh);
}
@@ -1377,7 +1322,6 @@
#include <pthread.h>
#include <stdlib.h>
#include <mach-o/dyld.h>
-#include <servers/bootstrap.h>
#include "dyldLibSystemInterface.h"
@@ -1432,6 +1376,12 @@
return (pthread_getspecific(dlerrorPerThreadKey) != NULL);
}
+#if TARGET_OS_DRIVERKIT
+static bool isLaunchdOwned()
+{
+ return false;
+}
+#else
// use non-lazy pointer to vproc_swap_integer so that lazy binding does not recurse
typedef vproc_err_t (*vswapproc)(vproc_t vp, vproc_gsk_t key,int64_t *inval, int64_t *outval);
static vswapproc swapProc = &vproc_swap_integer;
@@ -1448,6 +1398,7 @@
}
return result;
}
+#endif
static void shared_cache_missing()
{
@@ -1477,7 +1428,7 @@
&__cxa_finalize_ranges
};
-
+static const objc_opt::objc_opt_t* gObjCOpt = nullptr;
//
// during initialization of libSystem this routine will run
// and call dyld, registering the helper functions.
@@ -1487,8 +1438,21 @@
{
void (*p)(dyld::LibSystemHelpers*);
+ // Get the optimized objc pointer now that the cache is loaded
+ const dyld_all_image_infos* allInfo = _dyld_get_all_image_infos();
+ if ( allInfo != nullptr ) {
+ const DyldSharedCache* cache = (const DyldSharedCache*)(allInfo->sharedCacheBaseAddress);
+ if ( cache != nullptr )
+ gObjCOpt = cache->objcOpt();
+ }
+
if ( gUseDyld3 ) {
dyld3::gAllImages.applyInitialImages();
+#if TARGET_OS_IOS && !TARGET_OS_SIMULATOR
+ // For binaries built before 13.0, set the lookup function if they need it
+ if (dyld_get_program_sdk_version() < DYLD_PACKED_VERSION(13,0,0))
+ setLookupFunc((void*)&dyld3::compatFuncLookup);
+#endif
}
else {
_dyld_func_lookup("__dyld_register_thread_helpers", (void**)&p);
@@ -1499,45 +1463,48 @@
tlv_initializer();
}
-
-char* dlerror()
-{
- if ( gUseDyld3 )
- return dyld3::dlerror();
-
- DYLD_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)
{
dyld3::ScopedTimer timer(DBG_DYLD_TIMING_DLADDR, (uint64_t)addr, 0, 0);
int result = 0;
- if ( gUseDyld3 )
- return dyld3::dladdr(addr, info);
-
- DYLD_LOCK_THIS_BLOCK;
- static int (*p)(const void* , Dl_info*) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_dladdr", (void**)&p);
- result = p(addr, info);
+ if ( gUseDyld3 ) {
+ result = dyld3::dladdr(addr, info);
+ } else {
+ DYLD_LOCK_THIS_BLOCK;
+ static int (*p)(const void* , Dl_info*) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_dladdr", (void**)&p);
+ result = p(addr, info);
+ }
timer.setData4(result);
timer.setData5(info != NULL ? info->dli_fbase : 0);
timer.setData6(info != NULL ? info->dli_saddr : 0);
- return result;
+ return result;
+}
+
+#if !TARGET_OS_DRIVERKIT
+char* dlerror()
+{
+ if ( gUseDyld3 )
+ return dyld3::dlerror();
+
+ DYLD_LOCK_THIS_BLOCK;
+ static char* (*p)() = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_dlerror", (void**)&p);
+ return(p());
}
int dlclose(void* handle)
{
dyld3::ScopedTimer timer(DBG_DYLD_TIMING_DLCLOSE, (uint64_t)handle, 0, 0);
int result = 0;
- if ( gUseDyld3 )
+ if ( gUseDyld3 ) {
+ timer.setData4(result);
return dyld3::dlclose(handle);
+ }
DYLD_LOCK_THIS_BLOCK;
static int (*p)(void* handle) = NULL;
@@ -1545,6 +1512,7 @@
if(p == NULL)
_dyld_func_lookup("__dyld_dlclose", (void**)&p);
result = p(handle);
+ timer.setData4(result);
return result;
}
@@ -1555,6 +1523,7 @@
if ( gUseDyld3 ) {
result = dyld3::dlopen_internal(path, mode, __builtin_return_address(0));
+ timer.setData4(result);
return result;
}
@@ -1572,32 +1541,6 @@
__asm__ volatile("");
timer.setData4(result);
-#if TARGET_OS_OSX
- // HACK for iOSMac bringup rdar://40945421
- if ( result == nullptr && dyld_get_active_platform() == PLATFORM_IOSMAC && csr_check(CSR_ALLOW_APPLE_INTERNAL) == 0) {
- if (hasPerThreadBufferFor_dlerror()) {
- // first char of buffer is flag whether string (starting at second char) is valid
- char* buffer = getPerThreadBufferFor_dlerror(2);
-
- if ( buffer[0] != '\0' && (strstr(&buffer[1], "macOS dylib cannot be loaded into iOSMac process")
- || strstr(&buffer[1], "mach-o, but not built for iOSMac")) ) {
- // if valid buffer and contains an iOSMac issue
- fprintf(stderr, "dyld: iOSMac ERROR: process attempted to dlopen() dylib with macOS dependency: \n");
- fprintf(stderr, "\tdlerror: %s\n", &buffer[1]);
- fprintf(stderr, "\tBacktrace:\n");
-
- void* stackPointers[128];
- int stackPointersCnt = backtrace(stackPointers, 128);
- char** symbolicatedStack = backtrace_symbols(stackPointers, stackPointersCnt);
- for (int32_t i = 0; i < stackPointersCnt; ++i) {
- fprintf(stderr, "\t\t%s\n", symbolicatedStack[i]);
- }
- free(symbolicatedStack);
- }
- }
- }
-#endif
-
return result;
}
@@ -1608,6 +1551,7 @@
if ( gUseDyld3 ) {
result = dyld3::dlopen_preflight_internal(path);
+ timer.setData4(result);
return result;
}
@@ -1628,6 +1572,7 @@
if ( gUseDyld3 ) {
result = dyld3::dlsym_internal(handle, symbol, __builtin_return_address(0));
+ timer.setData4(result);
return result;
}
@@ -1640,6 +1585,8 @@
timer.setData4(result);
return result;
}
+#endif // !TARGET_OS_DRIVERKIT
+
const struct dyld_all_image_infos* _dyld_get_all_image_infos()
{
@@ -1750,6 +1697,34 @@
return p(length);
}
+bool _dyld_shared_cache_optimized()
+{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_shared_cache_optimized();
+
+ const dyld_all_image_infos* allInfo = _dyld_get_all_image_infos();
+ if ( allInfo != nullptr ) {
+ const dyld_cache_header* cacheHeader = (dyld_cache_header*)(allInfo->sharedCacheBaseAddress);
+ if ( cacheHeader != nullptr )
+ return (cacheHeader->cacheType == kDyldSharedCacheTypeProduction);
+ }
+ return false;
+}
+
+bool _dyld_shared_cache_is_locally_built()
+{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_shared_cache_is_locally_built();
+
+ const dyld_all_image_infos* allInfo = _dyld_get_all_image_infos();
+ if ( allInfo != nullptr ) {
+ const dyld_cache_header* cacheHeader = (dyld_cache_header*)(allInfo->sharedCacheBaseAddress);
+ if ( cacheHeader != nullptr )
+ return (cacheHeader->locallyBuiltCache == 1);
+ }
+ return false;
+}
+
void _dyld_images_for_addresses(unsigned count, const void* addresses[], struct dyld_image_uuid_offset infos[])
{
if ( gUseDyld3 )
@@ -1776,6 +1751,24 @@
return p(func);
}
+void _dyld_register_for_bulk_image_loads(void (*func)(unsigned imageCount, const struct mach_header* mhs[], const char* paths[]))
+{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_register_for_bulk_image_loads(func);
+
+ DYLD_NO_LOCK_THIS_BLOCK;
+ static const void (*p)(void (*)(unsigned imageCount, const mach_header* mhs[], const char* paths[])) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_register_for_bulk_image_loads", (void**)&p);
+ return p(func);
+}
+
+bool dyld_need_closure(const char* execPath, const char* tempDir)
+{
+ return dyld3::dyld_need_closure(execPath, tempDir);
+}
+
bool dyld_process_is_restricted()
{
if ( gUseDyld3 )
@@ -1802,6 +1795,19 @@
return p();
}
+bool dyld_has_inserted_or_interposing_libraries()
+{
+ if ( gUseDyld3 )
+ return dyld3::dyld_has_inserted_or_interposing_libraries();
+
+ DYLD_NO_LOCK_THIS_BLOCK;
+ static bool (*p)() = NULL;
+
+ if (p == NULL)
+ _dyld_func_lookup("__dyld_has_inserted_or_interposing_libraries", (void**)&p);
+ return p();
+}
+
void dyld_dynamic_interpose(const struct mach_header* mh, const struct dyld_interpose_tuple array[], size_t count)
{
if ( gUseDyld3 )
@@ -1815,6 +1821,19 @@
p(mh, array, count);
}
+// SPI called __fork
+void _dyld_atfork_prepare()
+{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_atfork_prepare();
+}
+
+// SPI called __fork
+void _dyld_atfork_parent()
+{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_atfork_parent();
+}
// SPI called __fork
void _dyld_fork_child()
@@ -1994,5 +2013,45 @@
p(mapped, init, unmapped);
}
-
-
+void _dyld_missing_symbol_abort()
+{
+ return dyld3::_dyld_missing_symbol_abort();
+}
+
+const char* _dyld_get_objc_selector(const char* selName)
+{
+ // Check the shared cache table if it exists.
+ if ( gObjCOpt != nullptr ) {
+ if ( const objc_opt::objc_selopt_t* selopt = gObjCOpt->selopt() ) {
+ const char* name = selopt->get(selName);
+ if (name != nullptr)
+ return name;
+ }
+ }
+
+ if ( gUseDyld3 )
+ return dyld3::_dyld_get_objc_selector(selName);
+
+ return nullptr;
+}
+
+void _dyld_for_each_objc_class(const char* className,
+ void (^callback)(void* classPtr, bool isLoaded, bool* stop)) {
+ if ( gUseDyld3 )
+ return dyld3::_dyld_for_each_objc_class(className, callback);
+}
+
+void _dyld_for_each_objc_protocol(const char* protocolName,
+ void (^callback)(void* protocolPtr, bool isLoaded, bool* stop)) {
+ if ( gUseDyld3 )
+ return dyld3::_dyld_for_each_objc_protocol(protocolName, callback);
+}
+
+void _dyld_register_driverkit_main(void (*mainFunc)(void))
+{
+ static bool (*p)(void (*mainFunc)(void)) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_register_driverkit_main", (void**)&p);
+ p(mainFunc);
+}