--- libmalloc/libmalloc-140.1.1/private/malloc_private.h
+++ libmalloc/libmalloc-317.100.9/private/malloc_private.h
@@ -26,13 +26,15 @@
 
 /* Here be dragons (SPIs) */
 
+#include <mach/boolean.h>
 #include <sys/cdefs.h>
 #include <Availability.h>
+#include <os/availability.h>
+#include <malloc/malloc.h>
 
 /*********	Callbacks	************/
 
-__OSX_AVAILABLE(10.12) __IOS_AVAILABLE(10.0)
-__TVOS_AVAILABLE(10.0) __WATCHOS_AVAILABLE(3.0)
+API_AVAILABLE(macos(10.12), ios(10.0), tvos(10.0), watchos(3.0))
 void malloc_enter_process_memory_limit_warn_mode(void);
 	/* A callback invoked once the process receives a warning for approaching
 	 * memory limit. */
@@ -43,12 +45,71 @@
 	/* A function invoked when malloc needs to handle any flavor of
 	 * memory pressure notification or process memory limit notification. */
 
-__OSX_AVAILABLE(10.12) __IOS_AVAILABLE(10.0)
-__TVOS_AVAILABLE(10.0) __WATCHOS_AVAILABLE(3.0)
+API_AVAILABLE(macos(10.12), ios(10.0), tvos(10.0), watchos(3.0))
 void * reallocarray(void * in_ptr, size_t nmemb, size_t size) __DARWIN_EXTSN(reallocarray) __result_use_check;
 
-__OSX_AVAILABLE(10.12) __IOS_AVAILABLE(10.0)
-__TVOS_AVAILABLE(10.0) __WATCHOS_AVAILABLE(3.0)
+API_AVAILABLE(macos(10.12), ios(10.0), tvos(10.0), watchos(3.0))
 void * reallocarrayf(void * in_ptr, size_t nmemb, size_t size) __DARWIN_EXTSN(reallocarrayf) __result_use_check;
 
+/*
+ * Checks whether an address might belong to any registered zone. False positives
+ * are allowed (e.g. the memory was freed, or it's in a part of the address
+ * space used by malloc that has not yet been allocated.) False negatives are
+ * not allowed.
+ */
+API_AVAILABLE(macos(10.14), ios(12.0), tvos(12.0), watchos(5.0))
+boolean_t malloc_claimed_address(void *ptr) __result_use_check;
+
+/*
+ * Checks whether an address might belong to a given zone. False positives are
+ * allowed (e.g. the memory was freed, or it's in a part of the address space
+ * used by malloc that has not yet been allocated.) False negatives are not
+ * allowed.
+ */
+API_AVAILABLE(macos(10.14), ios(12.0), tvos(12.0), watchos(5.0))
+boolean_t malloc_zone_claimed_address(malloc_zone_t *zone, void *ptr) __result_use_check;
+
+/**
+ * Returns whether the nano allocator is engaged. The return value is 0 if Nano
+ * is not engaged and the allocator version otherwise.
+ */
+API_AVAILABLE(macos(10.14), ios(12.0), tvos(12.0), watchos(5.0))
+int malloc_engaged_nano(void) __result_use_check;
+
+
+/********* PGuard ************/
+
+const static uint32_t k_pguard_trace_max_frames = 16;
+
+typedef struct {
+	uint64_t thread_id;
+	uint32_t num_frames;
+	vm_address_t frames[k_pguard_trace_max_frames];
+} stack_trace_t;
+
+typedef struct {
+	// diagnose_page_fault
+	const char *error_type;
+	const char *confidence;
+	vm_address_t fault_address;
+	// fill_in_report
+	vm_address_t nearest_allocation;
+	size_t allocation_size;
+	const char *allocation_state;
+	uint32_t num_traces;
+	stack_trace_t alloc_trace;
+	stack_trace_t dealloc_trace;
+} pguard_report_t;
+typedef pguard_report_t pgm_report_t;
+
+/**
+ * Like memory_reader_t, but caller must free returned memory if not NULL.
+ */
+typedef void *(*crash_reporter_memory_reader_t)(task_t task, vm_address_t address, size_t size);
+
+API_AVAILABLE(macos(10.16), ios(14.0), tvos(14.0), watchos(7.0))
+kern_return_t pgm_diagnose_fault_from_crash_reporter(vm_address_t fault_address, pgm_report_t *report,
+		task_t task, vm_address_t zone_address, crash_reporter_memory_reader_t crm_reader) __result_use_check;
+
+
 #endif /* _MALLOC_PRIVATE_H_ */