--- libmalloc/libmalloc-521.120.7/src/vm.h
+++ libmalloc/libmalloc-374.40.6/src/vm.h
@@ -25,27 +25,11 @@
 #ifndef __VM_H
 #define __VM_H
 
-#include <malloc/_ptrcheck.h>
-__ptrcheck_abi_assume_single()
-
-#if MALLOC_TARGET_EXCLAVES
-typedef struct _liblibc_plat_mem_map_t plat_map_t;
-
-#define mvm_plat_map(x) (&(x))
-#else
-#define mvm_plat_map(x) NULL
-#endif // MALLOC_TARGET_EXCLAVES
-
-extern uint64_t malloc_entropy[2];
-
-#if !MALLOC_TARGET_EXCLAVES
 static inline bool
 mvm_aslr_enabled(void)
 {
-	extern struct mach_header __dso_handle;
-	return _dyld_get_image_slide(&__dso_handle);
+	return _dyld_get_image_slide((const struct mach_header *)_NSGetMachExecuteHeader()) != 0;
 }
-#endif // !MALLOC_TARGET_EXCLAVES
 
 MALLOC_NOEXPORT
 void
@@ -53,68 +37,18 @@
 
 MALLOC_NOEXPORT
 void *
-mvm_allocate_plat(uintptr_t addr, size_t size, uint8_t align, int flags, int debug_flags, int label, plat_map_t *map_out) __alloc_size(2);
-
-MALLOC_NOEXPORT
-void *
-mvm_allocate_pages(size_t size, uint8_t align, uint32_t debug_flags, int vm_page_label) __alloc_size(1);
-
-MALLOC_NOEXPORT
-void *
-mvm_allocate_pages_plat(size_t size, uint8_t align, uint32_t debug_flags, int vm_page_label, plat_map_t *map_out) __alloc_size(1);
+mvm_allocate_pages(size_t size, unsigned char align, uint32_t debug_flags, int vm_page_label);
 
 MALLOC_NOEXPORT
 void
-mvm_deallocate_plat(void * __sized_by(size) addr, size_t size, int debug_flags, plat_map_t *map);
-
-MALLOC_NOEXPORT
-void
-mvm_deallocate_pages(void * __sized_by(size) addr, size_t size, unsigned debug_flags);
-
-MALLOC_NOEXPORT
-void
-mvm_deallocate_pages_plat(void * __sized_by(size) addr, size_t size, unsigned debug_flags, plat_map_t *map);
-
-MALLOC_NOEXPORT
-int
-mvm_madvise(void * __sized_by(size) addr, size_t size, int advice, unsigned debug_flags);
-
-MALLOC_NOEXPORT
-int
-mvm_madvise_plat(void * __sized_by(size) addr, size_t size, int advice, unsigned debug_flags, plat_map_t *map);
+mvm_deallocate_pages(void *addr, size_t size, unsigned debug_flags);
 
 MALLOC_NOEXPORT
 int
 mvm_madvise_free(void *szone, void *r, uintptr_t pgLo, uintptr_t pgHi, uintptr_t *last, boolean_t scribble);
 
 MALLOC_NOEXPORT
-int
-mvm_madvise_free_plat(void *szone, void *r, uintptr_t pgLo, uintptr_t pgHi, uintptr_t *last, boolean_t scribble, plat_map_t *map);
-
-MALLOC_NOEXPORT
 void
-mvm_protect(void * __sized_by(size) address, size_t size, unsigned protection, unsigned debug_flags);
-
-MALLOC_NOEXPORT
-void
-mvm_protect_plat(void * __sized_by(size) address, size_t size, unsigned protection, unsigned debug_flags, plat_map_t *map);
-
-#if CONFIG_DEFERRED_RECLAIM
-MALLOC_NOEXPORT
-kern_return_t
-mvm_deferred_reclaim_init(void);
-
-MALLOC_NOEXPORT
-bool
-mvm_reclaim_mark_used(uint64_t id, mach_vm_address_t ptr, uint32_t size, unsigned int debug_flags);
-
-MALLOC_NOEXPORT
-uint64_t
-mvm_reclaim_mark_free(vm_address_t ptr, uint32_t size, unsigned int debug_flags);
-
-MALLOC_NOEXPORT
-bool
-mvm_reclaim_is_available(uint64_t id);
-#endif // CONFIG_DEFERRED_RECLAIM
+mvm_protect(void *address, size_t size, unsigned protection, unsigned debug_flags);
 
 #endif // __VM_H