--- dyld/dyld-239.3/src/dyldInitialization.cpp
+++ dyld/dyld-210.2.3/src/dyldInitialization.cpp
@@ -27,7 +27,6 @@
 #include <stddef.h>
 #include <string.h>
 #include <stdlib.h>
-#include <Availability.h>
 #include <mach/mach.h>
 #include <mach-o/loader.h>
 #include <mach-o/ldsyms.h>
@@ -36,18 +35,11 @@
 	#include <mach-o/x86_64/reloc.h>
 #endif
 #include "dyld.h"
-#include "dyldSyscallInterface.h"
-
-// from dyld_gdb.cpp 
-extern void addImagesToAllImages(uint32_t infoCount, const dyld_image_info info[]);
-extern void syncProcessInfo();
 
 #ifndef MH_PIE
 	#define MH_PIE 0x200000 
 #endif
 
-// currently dyld has no initializers, but if some come back, set this to non-zero
-#define DYLD_INITIALIZER_SUPPORT  0
 
 #if __LP64__
 	#define LC_SEGMENT_COMMAND		LC_SEGMENT_64
@@ -67,10 +59,8 @@
 	#define POINTER_RELOC GENERIC_RELOC_VANILLA
 #endif
 
-
-#if TARGET_IPHONE_SIMULATOR
-const dyld::SyscallHelpers* gSyscallHelpers = NULL;
-#endif
+// from dyld.cpp
+namespace dyld { extern bool isRosetta(); };
 
 
 //
@@ -81,13 +71,7 @@
 namespace dyldbootstrap {
 
 
-
-#if DYLD_INITIALIZER_SUPPORT
-
 typedef void (*Initializer)(int argc, const char* argv[], const char* envp[], const char* apple[]);
-
-extern const Initializer  inits_start  __asm("section$start$__DATA$__mod_init_func");
-extern const Initializer  inits_end    __asm("section$end$__DATA$__mod_init_func");
 
 //
 // For a regular executable, the crt code calls dyld to run the executables initializers.
@@ -97,11 +81,33 @@
 //
 static void runDyldInitializers(const struct macho_header* mh, intptr_t slide, int argc, const char* argv[], const char* envp[], const char* apple[])
 {
-	for (const Initializer* p = &inits_start; p < &inits_end; ++p) {
-		(*p)(argc, argv, envp, apple);
-	}
-}
-#endif // DYLD_INITIALIZER_SUPPORT
+	const uint32_t cmd_count = mh->ncmds;
+	const struct load_command* const cmds = (struct load_command*)(((char*)mh)+sizeof(macho_header));
+	const struct load_command* cmd = cmds;
+	for (uint32_t i = 0; i < cmd_count; ++i) {
+		switch (cmd->cmd) {
+			case LC_SEGMENT_COMMAND:
+				{
+					const struct macho_segment_command* seg = (struct macho_segment_command*)cmd;
+					const struct macho_section* const sectionsStart = (struct macho_section*)((char*)seg + sizeof(struct macho_segment_command));
+					const struct macho_section* const sectionsEnd = &sectionsStart[seg->nsects];
+					for (const struct macho_section* sect=sectionsStart; sect < sectionsEnd; ++sect) {
+						const uint8_t type = sect->flags & SECTION_TYPE;
+						if ( type == S_MOD_INIT_FUNC_POINTERS ){
+							Initializer* inits = (Initializer*)(sect->addr + slide);
+							const uint32_t count = sect->size / sizeof(uintptr_t);
+							for (uint32_t i=0; i < count; ++i) {
+								Initializer func = inits[i];
+								func(argc, argv, envp, apple);
+							}
+						}
+					}
+				}
+				break;
+		}
+		cmd = (const struct load_command*)(((char*)cmd)+cmd->cmdsize);
+	}
+}
 
 
 //
@@ -196,7 +202,17 @@
 
 
 extern "C" void mach_init();
-extern "C" void __guard_setup(const char* apple[]);
+
+//
+// _pthread_keys is partitioned in a lower part that dyld will use; libSystem
+// will use the upper part.  We set __pthread_tsd_first to 1 as the start of
+// the lower part.  Libc will take #1 and c++ exceptions will take #2.  There
+// is one free key=3 left.
+//
+extern "C" {
+	extern int __pthread_tsd_first;
+	extern void _pthread_keys_init();
+}
 
 
 //
@@ -212,6 +228,12 @@
 	if ( slide != 0 ) {
 		rebaseDyld(dyldsMachHeader, slide);
 	}
+
+#if __IPHONE_OS_VERSION_MIN_REQUIRED		
+	// set pthread keys to dyld range
+	__pthread_tsd_first = 1;
+	_pthread_keys_init();
+#endif
 
 	// allow dyld to use mach messaging
 	mach_init();
@@ -224,55 +246,15 @@
 	while(*apple != NULL) { ++apple; }
 	++apple;
 
-	// set up random value for stack canary
-	__guard_setup(apple);
-
-#if DYLD_INITIALIZER_SUPPORT
 	// run all C++ initializers inside dyld
 	runDyldInitializers(dyldsMachHeader, slide, argc, argv, envp, apple);
-#endif
-
+		
 	// now that we are done bootstrapping dyld, call dyld's main
 	uintptr_t appsSlide = slideOfMainExecutable(appsMachHeader);
 	return dyld::_main(appsMachHeader, appsSlide, argc, argv, envp, apple, startGlue);
 }
 
 
-#if TARGET_IPHONE_SIMULATOR
-
-extern "C" uintptr_t start_sim(int argc, const char* argv[], const char* envp[], const char* apple[],
-							const macho_header* mainExecutableMH, const macho_header* dyldMH, uintptr_t dyldSlide,
-							const dyld::SyscallHelpers*, uintptr_t* startGlue);
-					
-					
-uintptr_t start_sim(int argc, const char* argv[], const char* envp[], const char* apple[],
-					const macho_header* mainExecutableMH, const macho_header* dyldMH, uintptr_t dyldSlide,
-					const dyld::SyscallHelpers* sc, uintptr_t* startGlue)
-{
-	// if simulator dyld loaded slid, it needs to rebase itself
-	// we have to do this before using any global variables
-	if ( dyldSlide != 0 ) {
-		rebaseDyld(dyldMH, dyldSlide);
-	}
-
-	// save table of syscall pointers
-	gSyscallHelpers = sc;
-	
-	// allow dyld to use mach messaging
-	mach_init();
-
-	// set up random value for stack canary
-	__guard_setup(apple);
-
-	// setup gProcessInfo to point to host dyld's struct
-	dyld::gProcessInfo = (struct dyld_all_image_infos*)(sc->getProcessInfo());
-	syncProcessInfo();
-
-	// now that we are done bootstrapping dyld, call dyld's main
-	uintptr_t appsSlide = slideOfMainExecutable(mainExecutableMH);
-	return dyld::_main(mainExecutableMH, appsSlide, argc, argv, envp, apple, startGlue);
-}
-#endif
 
 
 } // end of namespace