--- libmalloc/libmalloc-474.0.13/private/malloc_private.h
+++ libmalloc/libmalloc-317.121.1/private/malloc_private.h
@@ -27,22 +27,10 @@
 /* Here be dragons (SPIs) */
 
 #include <mach/boolean.h>
-#include <mach/kern_return.h>
-#include <mach/mach_types.h>
 #include <sys/cdefs.h>
-#include <stdbool.h>
-#include <stddef.h>
-#include <stdint.h>
 #include <Availability.h>
 #include <os/availability.h>
 #include <malloc/malloc.h>
-
-__BEGIN_DECLS
-
-/* Memorypressure notification mask to use by default */
-extern const unsigned long malloc_memorypressure_mask_default_4libdispatch;
-/* Memorypressure notification mask to use if MSL has been enabled */
-extern const unsigned long malloc_memorypressure_mask_msl_4libdispatch;
 
 /*********	Callbacks	************/
 
@@ -88,48 +76,16 @@
 API_AVAILABLE(macos(10.14), ios(12.0), tvos(12.0), watchos(5.0))
 int malloc_engaged_nano(void) __result_use_check;
 
-/*
- * Disables zero-on-free in a process.  This has security implications and is
- * intended to be used only as part of binary compatibility workarounds for
- * external code.  It should be called as early as possible in the process
- * lifetime, ideally before the process has gone multithreaded.  It is not
- * guaranteed to have any effect.
- */
-SPI_AVAILABLE(macos(13.0), ios(16.1), tvos(16.1), watchos(9.1))
-void malloc_zero_on_free_disable(void);
 
-/****** Thread-specific libmalloc options ******/
+/********* PGuard ************/
 
-/**
- * Options struct: zero means "default options".
- */
-typedef struct {
-	uintptr_t DisableExpensiveDebuggingOptions : 1;
-	uintptr_t DisableProbabilisticGuardMalloc : 1;
-	uintptr_t DisableMallocStackLogging : 1;
-} malloc_thread_options_t;
-
-API_AVAILABLE(macos(13.0), ios(16.0), tvos(16.0), watchos(9.0))
-malloc_thread_options_t malloc_get_thread_options(void) __result_use_check;
-
-API_AVAILABLE(macos(13.0), ios(16.0), tvos(16.0), watchos(9.0))
-void malloc_set_thread_options(malloc_thread_options_t opts);
-
-/****** Crash Reporter integration ******/
+const static uint32_t k_pguard_trace_max_frames = 16;
 
 typedef struct {
 	uint64_t thread_id;
-	uint64_t time;
 	uint32_t num_frames;
-	vm_address_t frames[64];
+	vm_address_t frames[k_pguard_trace_max_frames];
 } stack_trace_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);
-
-/****** Probabilistic Guard Malloc ******/
 
 typedef struct {
 	// diagnose_page_fault
@@ -141,51 +97,19 @@
 	size_t allocation_size;
 	const char *allocation_state;
 	uint32_t num_traces;
-	// fill_in_trace
 	stack_trace_t alloc_trace;
 	stack_trace_t dealloc_trace;
-} pgm_report_t;
+} 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);
 
-kern_return_t pgm_extract_report_from_corpse(vm_address_t fault_address, pgm_report_t *report, task_t task,
-		vm_address_t *zone_addresses, uint32_t zone_count, crash_reporter_memory_reader_t crm_reader) __result_use_check;
-
+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;
 
-/****** Sanitizer Zone ******/
-
-struct malloc_sanitizer_poison {
-	// ASAN_HEAP_LEFTRZ: [ptr, ptr + leftrz_sz)
-	// ASAN_VALID: [ptr + leftrz_sz, ptr + alloc_sz)
-	// ASAN_HEAP_RIGHTRZ: [ptr + leftrz_sz + alloc_sz, ptr + leftrz_sz + alloc_sz + rightrz_sz)
-	void (*heap_allocate_poison)(uintptr_t ptr, size_t leftrz_sz, size_t alloc_sz, size_t rightrz_sz);
-	// ASAN_HEAP_FREED: [ptr, ptr + sz)
-	void (*heap_deallocate_poison)(uintptr_t ptr, size_t sz);
-	// ASAN_HEAP_INTERNAL: [ptr, ptr + sz)
-	void (*heap_internal_poison)(uintptr_t ptr, size_t sz);
-};
-
-/* Returns whether sanitizers are enabled */
-bool malloc_sanitizer_is_enabled(void);
-
-/* Returns function pointers for interacting with sanitizer */
-extern const struct malloc_sanitizer_poison *malloc_sanitizer_get_functions(void);
-
-/* Sets function pointers for interacting with sanitizer */
-void malloc_sanitizer_set_functions(struct malloc_sanitizer_poison *);
-
-typedef struct {
-	vm_address_t fault_address;
-	vm_address_t nearest_allocation;
-	size_t allocation_size;
-	stack_trace_t alloc_trace;
-	stack_trace_t dealloc_trace;
-} sanitizer_report_t;
-
-kern_return_t sanitizer_diagnose_fault_from_crash_reporter(vm_address_t fault_address, sanitizer_report_t *report,
-		task_t task, vm_address_t zone_address, crash_reporter_memory_reader_t crm_reader) __result_use_check;
-
-__END_DECLS
 
 #endif /* _MALLOC_PRIVATE_H_ */