diff --git a/ap/libc/glibc/glibc-2.23/malloc/malloc.h b/ap/libc/glibc/glibc-2.23/malloc/malloc.h
new file mode 100644
index 0000000..f65e18a
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.23/malloc/malloc.h
@@ -0,0 +1,171 @@
+/* Prototypes and definition for malloc implementation.
+   Copyright (C) 1996-2016 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef _MALLOC_H
+#define _MALLOC_H 1
+
+#include <features.h>
+#include <stddef.h>
+#include <stdio.h>
+
+#ifdef _LIBC
+# define __MALLOC_HOOK_VOLATILE
+# define __MALLOC_DEPRECATED
+#else
+# define __MALLOC_HOOK_VOLATILE volatile
+# define __MALLOC_DEPRECATED __attribute_deprecated__
+#endif
+
+
+__BEGIN_DECLS
+
+/* Allocate SIZE bytes of memory.  */
+extern void *malloc (size_t __size) __THROW __attribute_malloc__ __wur;
+
+/* Allocate NMEMB elements of SIZE bytes each, all initialized to 0.  */
+extern void *calloc (size_t __nmemb, size_t __size)
+__THROW __attribute_malloc__ __wur;
+
+/* Re-allocate the previously allocated block in __ptr, making the new
+   block SIZE bytes long.  */
+/* __attribute_malloc__ is not used, because if realloc returns
+   the same pointer that was passed to it, aliasing needs to be allowed
+   between objects pointed by the old and new pointers.  */
+extern void *realloc (void *__ptr, size_t __size)
+__THROW __attribute_warn_unused_result__;
+
+/* Free a block allocated by `malloc', `realloc' or `calloc'.  */
+extern void free (void *__ptr) __THROW;
+
+/* Free a block allocated by `calloc'. */
+extern void cfree (void *__ptr) __THROW;
+
+/* Allocate SIZE bytes allocated to ALIGNMENT bytes.  */
+extern void *memalign (size_t __alignment, size_t __size)
+__THROW __attribute_malloc__ __wur;
+
+/* Allocate SIZE bytes on a page boundary.  */
+extern void *valloc (size_t __size) __THROW __attribute_malloc__ __wur;
+
+/* Equivalent to valloc(minimum-page-that-holds(n)), that is, round up
+   __size to nearest pagesize. */
+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);
+
+/* Default value of `__morecore'.  */
+extern void *__default_morecore (ptrdiff_t __size)
+__THROW __attribute_malloc__;
+
+/* SVID2/XPG mallinfo structure */
+
+struct mallinfo
+{
+  int arena;    /* non-mmapped space allocated from system */
+  int ordblks;  /* number of free chunks */
+  int smblks;   /* number of fastbin blocks */
+  int hblks;    /* number of mmapped regions */
+  int hblkhd;   /* space in mmapped regions */
+  int usmblks;  /* maximum total allocated space */
+  int fsmblks;  /* space available in freed fastbin blocks */
+  int uordblks; /* total allocated space */
+  int fordblks; /* total free space */
+  int keepcost; /* top-most, releasable (via malloc_trim) space */
+};
+
+/* Returns a copy of the updated current mallinfo. */
+extern struct mallinfo mallinfo (void) __THROW;
+
+/* SVID2/XPG mallopt options */
+#ifndef M_MXFAST
+# define M_MXFAST  1    /* maximum request size for "fastbins" */
+#endif
+#ifndef M_NLBLKS
+# define M_NLBLKS  2    /* UNUSED in this malloc */
+#endif
+#ifndef M_GRAIN
+# define M_GRAIN   3    /* UNUSED in this malloc */
+#endif
+#ifndef M_KEEP
+# define M_KEEP    4    /* UNUSED in this malloc */
+#endif
+
+/* mallopt options that actually do something */
+#define M_TRIM_THRESHOLD    -1
+#define M_TOP_PAD           -2
+#define M_MMAP_THRESHOLD    -3
+#define M_MMAP_MAX          -4
+#define M_CHECK_ACTION      -5
+#define M_PERTURB           -6
+#define M_ARENA_TEST        -7
+#define M_ARENA_MAX         -8
+
+/* General SVID/XPG interface to tunable parameters. */
+extern int mallopt (int __param, int __val) __THROW;
+
+/* Release all but __pad bytes of freed top-most memory back to the
+   system. Return 1 if successful, else 0. */
+extern int malloc_trim (size_t __pad) __THROW;
+
+/* Report the number of usable allocated bytes associated with allocated
+   chunk __ptr. */
+extern size_t malloc_usable_size (void *__ptr) __THROW;
+
+/* Prints brief summary statistics on stderr. */
+extern void malloc_stats (void) __THROW;
+
+/* Output information about state of allocator to stream FP.  */
+extern int malloc_info (int __options, FILE *__fp) __THROW;
+
+/* Record the state of all malloc variables in an opaque data structure. */
+extern void *malloc_get_state (void) __THROW;
+
+/* Restore the state of all malloc variables from data obtained with
+   malloc_get_state(). */
+extern int malloc_set_state (void *__ptr) __THROW;
+
+/* Called once when malloc is initialized; redefining this variable in
+   the application provides the preferred way to set up the hook
+   pointers. */
+extern void (*__MALLOC_HOOK_VOLATILE __malloc_initialize_hook) (void)
+__MALLOC_DEPRECATED;
+/* Hooks for debugging and user-defined versions. */
+extern void (*__MALLOC_HOOK_VOLATILE __free_hook) (void *__ptr,
+                                                   const void *)
+__MALLOC_DEPRECATED;
+extern void *(*__MALLOC_HOOK_VOLATILE __malloc_hook)(size_t __size,
+                                                     const void *)
+__MALLOC_DEPRECATED;
+extern void *(*__MALLOC_HOOK_VOLATILE __realloc_hook)(void *__ptr,
+                                                      size_t __size,
+                                                      const void *)
+__MALLOC_DEPRECATED;
+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);
+
+/* Activate a standard set of debugging hooks. */
+extern void __malloc_check_init (void) __THROW __MALLOC_DEPRECATED;
+
+
+__END_DECLS
+#endif /* malloc.h */