--- libmalloc/libmalloc-374.100.5/src/base.h
+++ libmalloc/libmalloc-283.100.5/src/base.h
@@ -71,14 +71,7 @@
 #   define MALLOC_CACHE_LINE 128
 #   define MALLOC_NANO_CACHE_LINE 64
 #elif defined(__arm__) || defined(__arm64__)
-#	if TARGET_OS_OSX || TARGET_OS_DRIVERKIT || TARGET_OS_SIMULATOR
-// To make zone structure layout match to support introspecting a Rosetta process
-// from a native process or vice versa on macOS. See comment in
-// quarantine_diagnose_fault_from_crash_reporter.
-#   	define MALLOC_CACHE_LINE 128
-#	else
-#   	define MALLOC_CACHE_LINE 64
-#	endif
+#   define MALLOC_CACHE_LINE 64
 #   define MALLOC_NANO_CACHE_LINE 64
 #else
 #   define MALLOC_CACHE_LINE 32
@@ -106,21 +99,6 @@
 #define round_page_quanta(x) round_page((x))
 #define vm_page_quanta_size (vm_page_size)
 #define vm_page_quanta_shift (vm_page_shift)
-
-/*
- * Large rounds allocation sizes up to MAX(vm_kernel_page_size, page_size).
- * This provides better death row caching performance when vm_kernel_page_size > page_size.
- * The kernel allocates pages of vm_kernel_page_size to back our allocations,
- * so there is no additional physical page cost to doing this.
- * Guard pages are the same size to ensure the full vm allocation size is a multiple of MAX(vm_kernel_page_size, page_size).
- */
-#define large_vm_page_quanta_size (vm_kernel_page_size > vm_page_size ? vm_kernel_page_size : vm_page_size)
-#define large_vm_page_quanta_mask (vm_kernel_page_mask > vm_page_mask ? vm_kernel_page_mask : vm_page_mask)
-#define large_vm_page_quanta_shift (vm_kernel_page_shift > vm_page_shift ? vm_kernel_page_shift : vm_page_shift)
-
-#define trunc_large_page_quanta(x) ((x) & (~large_vm_page_quanta_mask))
-#define round_large_page_quanta(x) (trunc_large_page_quanta((x) + large_vm_page_quanta_mask))
-
 
 // add a guard page before each VM region to help debug
 #define MALLOC_ADD_PRELUDE_GUARD_PAGE (1 << 0)