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--- libmalloc/libmalloc-521.100.59/src/platform.h
+++ libmalloc/libmalloc-792.80.2/src/platform.h
@@ -32,7 +32,15 @@
#ifndef MALLOC_TARGET_DK_IOS
#define MALLOC_TARGET_DK_IOS 0
-#endif // MALLOC_TARGET_DK_OSX
+#endif // MALLOC_TARGET_DK_IOS
+
+#ifndef MALLOC_TARGET_DK_VISIONOS
+#define MALLOC_TARGET_DK_VISIONOS 0
+#endif // MALLOC_TARGET_DK_VISIONOS
+
+#ifndef MALLOC_TARGET_DK_WATCH
+#define MALLOC_TARGET_DK_WATCH 0
+#endif // MALLOC_TARGET_DK_WATCH
#ifndef MALLOC_TARGET_EXCLAVES_INTROSPECTOR
#define MALLOC_TARGET_EXCLAVES_INTROSPECTOR 0
@@ -43,6 +51,12 @@
#else // (TARGET_OS_IPHONE && !TARGET_OS_SIMULATOR) || (TARGET_OS_DRIVERKIT && !MALLOC_TARGET_DK_OSX)
#define MALLOC_TARGET_IOS 0
#endif // (TARGET_OS_IPHONE && !TARGET_OS_SIMULATOR) || (TARGET_OS_DRIVERKIT && !MALLOC_TARGET_DK_OSX)
+
+#if TARGET_OS_IOS && !TARGET_OS_VISION
+#define MALLOC_TARGET_IOS_ONLY 1
+#else
+#define MALLOC_TARGET_IOS_ONLY 0
+#endif
#ifdef __LP64__
#define MALLOC_TARGET_64BIT 1
@@ -84,11 +98,15 @@
// <rdar://problem/19818071>
#define CONFIG_MADVISE_STYLE MADV_FREE_REUSABLE
+#if MALLOC_TARGET_64BIT && !TARGET_OS_WATCH && !MALLOC_TARGET_EXCLAVES
+#define CONFIG_NANOZONE 1
+#else
+#define CONFIG_NANOZONE 0
+#endif
+
#if MALLOC_TARGET_64BIT
-#define CONFIG_NANOZONE 1
#define CONFIG_ASLR_INTERNAL 0
#else // MALLOC_TARGET_64BIT
-#define CONFIG_NANOZONE 0
#define CONFIG_ASLR_INTERNAL 1
#endif // MALLOC_TARGET_64BIT
@@ -132,52 +150,37 @@
// The large last-free cache (aka. death row cache)
-#if TARGET_OS_IOS || TARGET_OS_SIMULATOR || TARGET_OS_DRIVERKIT
-// sdk=iphoneos, simulator, sdk=driverkit
+#if TARGET_OS_OSX
#define CONFIG_LARGE_CACHE 1
-#elif MALLOC_TARGET_IOS
-// all other embedded
+# define DEFAULT_LARGE_CACHE_ENABLED true
+#else // !TARGET_OS_OSX
#define CONFIG_LARGE_CACHE 0
-#else
-// Mac
-#define CONFIG_LARGE_CACHE 1
-#endif
-
-#if CONFIG_LARGE_CACHE
-
-#if MALLOC_TARGET_IOS && MALLOC_TARGET_64BIT
-#define DEFAULT_LARGE_CACHE_ENABLED false
-#define CONFIG_DEFERRED_RECLAIM 1
-
-#elif TARGET_OS_SIMULATOR || (MALLOC_TARGET_IOS && !MALLOC_TARGET_64BIT)
-#define DEFAULT_LARGE_CACHE_ENABLED false
-#define CONFIG_DEFERRED_RECLAIM 0
-
-#else // TARGET_OS_SIMULATOR || (MALLOC_TARGET_IOS && !MALLOC_TARGET_64BIT)
-#define DEFAULT_LARGE_CACHE_ENABLED true
-#define CONFIG_DEFERRED_RECLAIM 0
-
-#endif // TARGET_OS_SIMULATOR || (MALLOC_TARGET_IOS && !MALLOC_TARGET_64BIT)
-
-#else // CONFIG_LARGE_CACHE
-#define CONFIG_DEFERRED_RECLAIM 0
-
-#endif // CONFIG_LARGE_CACHE
-
-#if MALLOC_TARGET_IOS
+# define DEFAULT_LARGE_CACHE_ENABLED false
+#endif // TARGET_OS_OSX
+
+// Deferred reclaim
+#if (MALLOC_TARGET_IOS_ONLY && !TARGET_OS_SIMULATOR) || \
+ (TARGET_OS_VISION && !TARGET_OS_SIMULATOR) || \
+ (MALLOC_TARGET_64BIT && TARGET_OS_DRIVERKIT && !MALLOC_TARGET_DK_OSX) || \
+ TARGET_OS_OSX
+#define CONFIG_MAGAZINE_DEFERRED_RECLAIM 0
+#define CONFIG_XZM_DEFERRED_RECLAIM 1
+#else
+#define CONFIG_MAGAZINE_DEFERRED_RECLAIM 0
+#define CONFIG_XZM_DEFERRED_RECLAIM 0
+#endif // MALLOC_TARGET_IOS && MALLOC_TARGET_64BIT
+
+#if CONFIG_MAGAZINE_DEFERRED_RECLAIM && !CONFIG_LARGE_CACHE
+#error "Deferred reclaim requires large cache"
+#endif // CONFIG_MAGAZINE_DEFERRED_RECLAIM && !CONFIG_LARGE_CACHE
+
+#if MALLOC_TARGET_IOS || MALLOC_TARGET_EXCLAVES
// The VM system on iOS forces malloc-tagged memory to never be marked as
// copy-on-write, this would include calls we make to vm_copy. Given that the
-// kernel would just be doing a memcpy, we force it to happen in userpsace.
+// kernel would just be doing a memcpy, we force it to happen in userspace.
#define CONFIG_REALLOC_CAN_USE_VMCOPY 0
#else
#define CONFIG_REALLOC_CAN_USE_VMCOPY 1
-#endif
-
-// memory resource exception handling
-#if MALLOC_TARGET_IOS || TARGET_OS_SIMULATOR
-#define ENABLE_MEMORY_RESOURCE_EXCEPTION_HANDLING 0
-#else
-#define ENABLE_MEMORY_RESOURCE_EXCEPTION_HANDLING 1
#endif
#if !TARGET_OS_DRIVERKIT && (!TARGET_OS_OSX || MALLOC_TARGET_64BIT)
@@ -186,14 +189,6 @@
#define CONFIG_FEATUREFLAGS_SIMPLE 0
#endif
-
-// Sanitizer zone, only useful on macOS (+ DriverKit, 64-bit simulators) and exclavecore/exclavekit.
-#if (MALLOC_TARGET_EXCLAVES || TARGET_OS_OSX || TARGET_OS_DRIVERKIT || TARGET_OS_SIMULATOR) && MALLOC_TARGET_64BIT
-#define CONFIG_SANITIZER 1
-#else
-#define CONFIG_SANITIZER 0
-#endif
-
// presence of commpage memsize
#define CONFIG_HAS_COMMPAGE_MEMSIZE 1
@@ -201,30 +196,74 @@
#define CONFIG_HAS_COMMPAGE_NCPUS 1
// Distribute magazines by cluster number if nmagazines == nclusters
-#if (TARGET_OS_IOS && !TARGET_OS_SIMULATOR) || MALLOC_TARGET_DK_IOS
+#if (MALLOC_TARGET_IOS_ONLY && !TARGET_OS_SIMULATOR) || \
+ MALLOC_TARGET_DK_IOS || \
+ TARGET_OS_OSX || MALLOC_TARGET_DK_OSX
#define CONFIG_MAGAZINE_PER_CLUSTER 1
-#else // (TARGET_OS_IPHONE && !TARGET_OS_SIMULATOR)
+#else
#define CONFIG_MAGAZINE_PER_CLUSTER 0
#endif
+// Support cluster-aware policies in xzone malloc
+#if ((TARGET_OS_IOS || TARGET_OS_VISION) && !TARGET_OS_SIMULATOR) || \
+ MALLOC_TARGET_DK_IOS || MALLOC_TARGET_DK_VISIONOS || \
+ TARGET_OS_OSX || MALLOC_TARGET_DK_OSX || \
+ (TARGET_OS_WATCH && !TARGET_OS_SIMULATOR) || MALLOC_TARGET_DK_WATCH
+#define CONFIG_XZM_CLUSTER_AWARE 1
+#else
+#define CONFIG_XZM_CLUSTER_AWARE 0
+#endif
+
+// Build with supporting logic for cluster awareness in either allocator
+#if CONFIG_MAGAZINE_PER_CLUSTER || CONFIG_XZM_CLUSTER_AWARE
+#define CONFIG_CLUSTER_AWARE 1
+#else
+#define CONFIG_CLUSTER_AWARE 0
+#endif
// Use of hyper-shift for magazine selection.
#define CONFIG_NANO_USES_HYPER_SHIFT 0
#define CONFIG_SZONE_USES_HYPER_SHIFT 0
-// FIXME: limit number of malloc_create_zone() wrapper zones for watchOS to remove this
-#if TARGET_OS_OSX || TARGET_OS_IOS
-#define CONFIG_PGM_WRAP_CUSTOM_ZONES 1
-#else
-#define CONFIG_PGM_WRAP_CUSTOM_ZONES 0
-#endif
-
-#if MALLOC_TARGET_EXCLAVES
-#define MALLOC_ZERO_POLICY_DEFAULT MALLOC_ZERO_NONE
-#else
+#if TARGET_OS_OSX
+#define CONFIG_CHECK_PLATFORM_BINARY 1
+#else
+#define CONFIG_CHECK_PLATFORM_BINARY 0
+#endif
+
#define MALLOC_ZERO_POLICY_DEFAULT MALLOC_ZERO_ON_FREE
-#endif // MALLOC_TARGET_EXCLAVES
-
+
+#if MALLOC_TARGET_64BIT
+#define CONFIG_XZONE_MALLOC 1
+#else
+#define CONFIG_XZONE_MALLOC 0
+#endif
+
+#if CONFIG_XZONE_MALLOC && MALLOC_TARGET_IOS
+#define CONFIG_VM_USER_RANGES 1
+#else
+#define CONFIG_VM_USER_RANGES 0
+#endif
+
+#if CONFIG_XZONE_MALLOC && TARGET_CPU_ARM64 && (TARGET_OS_OSX || MALLOC_TARGET_DK_OSX)
+#define CONFIG_MACOS_RANGES 1
+#else
+#define CONFIG_MACOS_RANGES 0
+#endif
+
+#define MALLOC_XZONE_NANO_ENABLED_DEFAULT false
+
+#if CONFIG_XZONE_MALLOC && (MALLOC_TARGET_IOS || TARGET_OS_OSX || MALLOC_TARGET_DK_OSX)
+#define CONFIG_MADV_ZERO 1
+#else
+#define CONFIG_MADV_ZERO 0
+#endif
+
+#if CONFIG_XZONE_MALLOC && (MALLOC_TARGET_DK_VISIONOS || \
+ MALLOC_TARGET_DK_IOS || (MALLOC_TARGET_DK_OSX && TARGET_CPU_ARM64) || \
+ MALLOC_TARGET_DK_WATCH)
+#define MALLOC_XZONE_ENABLED_DEFAULT true
+#endif
#ifndef MALLOC_XZONE_ENABLED_DEFAULT
#define MALLOC_XZONE_ENABLED_DEFAULT false
@@ -236,20 +275,27 @@
#define CONFIG_EARLY_MALLOC 0
#endif
-#if TARGET_OS_IOS
-#define MALLOC_TARGET_IOS_ONLY 1
-#else
-#define MALLOC_TARGET_IOS_ONLY 0
-#endif
-
-
-#if MALLOC_TARGET_IOS_ONLY
+#if MALLOC_TARGET_IOS_ONLY || TARGET_OS_VISION || TARGET_OS_OSX || TARGET_OS_WATCH
#define CONFIG_MALLOC_PROCESS_IDENTITY 1
#else
#define CONFIG_MALLOC_PROCESS_IDENTITY 0
#endif
+#ifndef CONFIG_SANITIZER
+#define CONFIG_SANITIZER 1
+#endif
+
#define MALLOC_SECURE_ALLOCATOR_LAUNCHD_ENABLED_DEFAULT true
+// We need to define CONFIG_MTE here in case it's not defined, as it means
+// we're compiling a target for which we're not setting it through
+// GCC_PREPROCESSOR_DEFINITIONS in the Xcode config.
+#ifndef CONFIG_MTE
+#define CONFIG_MTE 0
+#endif
+
+#ifndef HEADER_MTE
+#define HEADER_MTE CONFIG_MTE
+#endif
#endif // __PLATFORM_H