aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--NEWS7
-rw-r--r--malloc/malloc.h7
2 files changed, 11 insertions, 3 deletions
diff --git a/NEWS b/NEWS
index 92dcb77fef..f69d48a38f 100644
--- a/NEWS
+++ b/NEWS
@@ -142,6 +142,13 @@ Deprecated and removed features, and other changes affecting compatibility:
storing RPC keys only supported the obsolete and insecure AUTH_DES
flavor of secure RPC.)
+* The __morecore and __after_morecore_hook malloc hooks and the default
+ implementation __default_morecore have been deprecated. Applications
+ should use malloc interposition to change malloc behavior, and mmap to
+ allocate anonymous memory. A future version of glibc may require that
+ applications which use the malloc hooks must preload a special shared
+ object, to enable the hooks.
+
Changes to build and runtime requirements:
* powerpc64le requires GCC 7.4 or newer. This is required for supporting
diff --git a/malloc/malloc.h b/malloc/malloc.h
index a6903fdd54..e0e91a9331 100644
--- a/malloc/malloc.h
+++ b/malloc/malloc.h
@@ -75,11 +75,11 @@ extern void *pvalloc (size_t __size) __THROW __attribute_malloc__ __wur;
/* Underlying allocation function; successive calls should return
contiguous pieces of memory. */
-extern void *(*__morecore) (ptrdiff_t __size);
+extern void *(*__morecore) (ptrdiff_t __size) __MALLOC_DEPRECATED;
/* Default value of `__morecore'. */
extern void *__default_morecore (ptrdiff_t __size)
-__THROW __attribute_malloc__;
+__THROW __attribute_malloc__ __MALLOC_DEPRECATED;
/* SVID2/XPG mallinfo structure */
@@ -156,7 +156,8 @@ extern void *(*__MALLOC_HOOK_VOLATILE __memalign_hook)(size_t __alignment,
size_t __size,
const void *)
__MALLOC_DEPRECATED;
-extern void (*__MALLOC_HOOK_VOLATILE __after_morecore_hook) (void);
+extern void (*__MALLOC_HOOK_VOLATILE __after_morecore_hook) (void)
+ __MALLOC_DEPRECATED;
__END_DECLS