--- libmalloc/libmalloc-409.81.2/src/base.h
+++ libmalloc/libmalloc-374.40.6/src/base.h
@@ -71,7 +71,14 @@
 #   define MALLOC_CACHE_LINE 128
 #   define MALLOC_NANO_CACHE_LINE 64
 #elif defined(__arm__) || defined(__arm64__)
-# 	define MALLOC_CACHE_LINE 128
+#	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_NANO_CACHE_LINE 64
 #else
 #   define MALLOC_CACHE_LINE 32
@@ -88,8 +95,6 @@
 #define MALLOC_PACKED __attribute__((packed))
 #define MALLOC_USED __attribute__((used))
 #define MALLOC_UNUSED __attribute__((unused))
-#define MALLOC_NORETURN __attribute__((noreturn))
-#define MALLOC_COLD __attribute__((cold))
 #define CHECK_MAGAZINE_PTR_LOCKED(szone, mag_ptr, fun) {}
 
 #define SCRIBBLE_BYTE 0xaa /* allocated scribble */