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--- dyld/dyld-1340/libdyld/LibSystemHelpers.cpp
+++ /dev/null
@@ -1,315 +0,0 @@
-/*
- * Copyright (c) 2017 Apple 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 <TargetConditionals.h>
-#include "Defines.h"
-
-#if !TARGET_OS_EXCLAVEKIT
- #include <_simple.h>
- #include <libc_private.h>
- #include <pthread/pthread.h>
- #include <pthread/tsd_private.h>
- #include <sys/errno.h>
- #include <sys/mman.h>
- #include <sys/stat.h>
-
-// atexit header is missing C++ guards
-extern "C" {
- #include <System/atexit.h>
-}
-#endif
-
-#if !TARGET_OS_DRIVERKIT && !TARGET_OS_EXCLAVEKIT
- #include <vproc_priv.h>
-#endif
-
-#include <string.h>
-#include <stdint.h>
-#include <mach-o/dyld_priv.h>
-#include <malloc/malloc.h>
-#include <mach-o/dyld.h>
-#include <mach-o/dyld_priv.h>
-#include <dlfcn.h>
-#include <dlfcn_private.h>
-#include <ptrauth.h>
-
-// libc is missing header declaration for this
-extern "C" int __cxa_atexit(void (*func)(void*), void* arg, void* dso);
-
-#include "LibSystemHelpers.h"
-#include "DyldProcessConfig.h"
-#include "DyldAPIs.h"
-#include "ThreadLocalVariables.h"
-
-extern "C" struct mach_header __dso_handle; // mach_header of libdyld.dylib
-
-namespace dyld4 {
- extern class APIs* gAPIs;
-}
-
-extern void _dyld_make_delayed_module_initializer_calls();
-
-
-uint8_t dyld_process_has_objc_patches = 0;
-
-namespace dyld4 {
-
-uintptr_t LibSystemHelpers::version() const
-{
- return 7;
-}
-
-void* LibSystemHelpers::malloc(size_t size) const
-{
- return ::malloc(size);
-}
-
-void LibSystemHelpers::free(void* p) const
-{
- ::free(p);
-}
-
-size_t LibSystemHelpers::malloc_size(const void* p) const
-{
- return ::malloc_size(p);
-}
-
-kern_return_t LibSystemHelpers::vm_allocate(vm_map_t task, vm_address_t* address, vm_size_t size, int flags) const
-{
-#if !DYLD_FEATURE_EMBEDDED_PAGE_ALLOCATOR
- return ::vm_allocate(task, address, size, flags);
-#else
- //TODO: EXCLAVES. Then replace calls to MemoryManager::allocate_pages
- return 0;
-#endif
-}
-
-kern_return_t LibSystemHelpers::vm_deallocate(vm_map_t task, vm_address_t address, vm_size_t size) const
-{
-#if !TARGET_OS_EXCLAVEKIT
- return ::vm_deallocate(task, address, size);
-#else
- return 0;
-#endif
-}
-
-// Note: driverkit uses a different arm64e ABI, so we cannot call libSystem's pthread_key_create() from dyld
-int LibSystemHelpers::pthread_key_create_free(dyld_thread_key_t* key) const
-{
- return dyld_thread_key_create(key, &::free);
-}
-
-void LibSystemHelpers::run_async(void* (*func)(void*), void* context) const
-{
-#if TARGET_OS_EXCLAVEKIT
- thrd_t workerThread;
- ::thrd_create(&workerThread, (thrd_start_t)func, context);
- ::thrd_detach(workerThread);
-#else
- pthread_t workerThread;
- ::pthread_create(&workerThread, NULL, func, context);
- ::pthread_detach(workerThread);
-#endif
-}
-
-void* LibSystemHelpers::pthread_getspecific(dyld_thread_key_t key) const
-{
- return dyld_thread_getspecific(key);
-}
-
-int LibSystemHelpers::pthread_setspecific(dyld_thread_key_t key, const void* value) const
-{
-#if TARGET_OS_EXCLAVEKIT
- return ::tss_set(key, (void*)value);
-#else
- return ::pthread_setspecific(key, value);
-#endif
-}
-
-void LibSystemHelpers::__cxa_atexit(void (*func)(void*), void* arg, void* dso) const
-{
-#if !__arm64e__
- // Note: for arm64e driverKit uses a different ABI for function pointers,
- // but dyld does not support static terminators for arm64e
- ::__cxa_atexit(func, arg, dso);
-#endif
-}
-
-void LibSystemHelpers::__cxa_finalize_ranges(const __cxa_range_t ranges[], unsigned int count) const
-{
-#if TARGET_OS_EXCLAVEKIT
- //TODO: EXCLAVES
-#else
- ::__cxa_finalize_ranges(ranges, count);
-#endif
-}
-
-bool LibSystemHelpers::isLaunchdOwned() const
-{
-#if TARGET_OS_DRIVERKIT || TARGET_OS_EXCLAVEKIT
- return false;
-#else
- // the vproc_swap_integer() call has to be to libSystem.dylib's function - not a static copy in dyld
- int64_t val = 0;
- ::vproc_swap_integer(nullptr, VPROC_GSK_IS_MANAGED, nullptr, &val);
- return ( val != 0 );
-#endif
-}
-
-void LibSystemHelpers::os_unfair_recursive_lock_lock_with_options(dyld_recursive_mutex_t lock, os_unfair_lock_options_t options) const
-{
-#if TARGET_OS_EXCLAVEKIT
- mtx_lock(lock);
-#else
- ::os_unfair_recursive_lock_lock_with_options(lock, options);
-#endif
-}
-
-void LibSystemHelpers::os_unfair_recursive_lock_unlock(dyld_recursive_mutex_t lock) const
-{
-#if TARGET_OS_EXCLAVEKIT
- mtx_unlock(lock);
-#else
- ::os_unfair_recursive_lock_unlock(lock);
-#endif
-}
-
-void LibSystemHelpers::exit(int result) const
-{
- ::exit(result);
-}
-
-const char* LibSystemHelpers::getenv(const char* key) const
-{
-#if TARGET_OS_EXCLAVEKIT
- return NULL;
-#else
- return ::getenv(key);
-#endif
-}
-
-int LibSystemHelpers::mkstemp(char* templatePath) const
-{
-#if TARGET_OS_EXCLAVEKIT
- return -1;
-#else
- return ::mkstemp(templatePath);
-#endif
-}
-
-// Added in version 2
-
-void LibSystemHelpers::os_unfair_recursive_lock_unlock_forked_child(dyld_recursive_mutex_t lock) const
-{
-#if !TARGET_OS_EXCLAVEKIT
- ::os_unfair_recursive_lock_unlock_forked_child(lock);
-#endif
-}
-
-// Added in version 3
-
-void LibSystemHelpers::setDyldPatchedObjCClasses() const
-{
- dyld_process_has_objc_patches = 1;
-}
-
-// Added in version 6
-void LibSystemHelpers::os_unfair_lock_lock_with_options(dyld_mutex_t lock, os_unfair_lock_options_t options) const
-{
-#if TARGET_OS_EXCLAVEKIT
- //TODO: EXCLAVES?
-#else
- ::os_unfair_lock_lock_with_options(lock, options);
-#endif
-}
-void LibSystemHelpers::os_unfair_lock_unlock(dyld_mutex_t lock) const
-{
-#if TARGET_OS_EXCLAVEKIT
- //TODO: EXCLAVES?
-#else
- ::os_unfair_lock_unlock(lock);
-#endif
-}
-
-// Added in version 7
-
-
-static bool legacyDyldLookup4OldBinaries(const char* name, void** address)
-{
-#if SUPPPORT_PRE_LC_MAIN
- if (strcmp(name, "__dyld_dlopen") == 0) {
- *address = (void*)&dlopen;
- return true;
- }
- else if (strcmp(name, "__dyld_dlsym") == 0) {
- *address = (void*)&dlsym;
- return true;
- }
- else if (strcmp(name, "__dyld_dladdr") == 0) {
- *address = (void*)&dladdr;
- return true;
- }
- else if (strcmp(name, "__dyld_get_image_slide") == 0) {
- *address = (void*)&_dyld_get_image_slide;
- return true;
- }
- else if (strcmp(name, "__dyld_make_delayed_module_initializer_calls") == 0) {
- *address = (void*)&_dyld_make_delayed_module_initializer_calls;
- return true;
- }
- else if (strcmp(name, "__dyld_lookup_and_bind") == 0) {
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wdeprecated-declarations"
- *address = (void*)&_dyld_lookup_and_bind;
-#pragma clang diagnostic pop
- return true;
- }
-#endif
- *address = 0;
- return false;
-}
-
-void LibSystemHelpers::setDefaultProgramVars(ProgramVars& vars) const
-{
- vars.__prognamePtr = &__progname;
-#if !TARGET_OS_EXCLAVEKIT
- vars.NXArgcPtr = &NXArgc;
- vars.NXArgvPtr = &NXArgv;
- vars.environPtr = (const char***)&environ;
-#endif
-}
-
-
-FuncLookup LibSystemHelpers::legacyDyldFuncLookup() const
-{
- return &legacyDyldLookup4OldBinaries;
-}
-
-mach_o::Error LibSystemHelpers::setUpThreadLocals(const DyldSharedCache* cache, const Header* hdr) const
-{
- return dyld::sThreadLocalVariables.setUpImage(cache, hdr);
-}
-
-
-} // namespace dyld4
-