Auto merge of #2256 - devnexen:malloc_zone2_apple, r=JohnTitor

apple adding allocation from zone api

Author: bors

libc-test/semver/apple.txt

@@ -1684,13 +1684,20 @@ mach_thread_self
 mach_timebase_info
 mach_timebase_info_data_t
 madvise
+malloc_default_zone
 malloc_statistics_t
+malloc_zone_calloc
 malloc_zone_check
+malloc_zone_free
+malloc_zone_from_ptr
 malloc_zone_log
+malloc_zone_malloc
 malloc_zone_print
 malloc_zone_print_ptr_info
+malloc_zone_realloc
 malloc_zone_statistics
 malloc_zone_t
+malloc_zone_valloc
 max_align_t
 mcontext_t
 memset_pattern4

src/unix/bsd/apple/mod.rs

@@ -4075,6 +4075,21 @@ extern "C" {
     pub fn malloc_zone_statistics(zone: *mut ::malloc_zone_t, stats: *mut malloc_statistics_t);
     pub fn malloc_zone_log(zone: *mut ::malloc_zone_t, address: *mut ::c_void);
     pub fn malloc_zone_print_ptr_info(ptr: *mut ::c_void);
+    pub fn malloc_default_zone() -> *mut ::malloc_zone_t;
+    pub fn malloc_zone_from_ptr(ptr: *const ::c_void) -> *mut ::malloc_zone_t;
+    pub fn malloc_zone_malloc(zone: *mut ::malloc_zone_t, size: ::size_t) -> *mut ::c_void;
+    pub fn malloc_zone_valloc(zone: *mut ::malloc_zone_t, size: ::size_t) -> *mut ::c_void;
+    pub fn malloc_zone_calloc(
+        zone: *mut ::malloc_zone_t,
+        num_items: ::size_t,
+        size: ::size_t,
+    ) -> *mut ::c_void;
+    pub fn malloc_zone_realloc(
+        zone: *mut ::malloc_zone_t,
+        ptr: *mut ::c_void,
+        size: ::size_t,
+    ) -> *mut ::c_void;
+    pub fn malloc_zone_free(zone: *mut ::malloc_zone_t, ptr: *mut ::c_void);
 
     pub fn proc_listpids(
         t: u32,