+2009-04-23 Paul Brook <paul@codesourcery.com>
+ Kazu Hirata <kazu@codesourcery.com>
+
+ * libc/stdlib/__atexit.c (__register_exitproc): Use weak reference
+ to malloc. Allocate dynamically only if it is present.
+ * libc/stdlib/__call_atexit.c (__call_exitprocs): Use weak
+ reference to free. Call free only if it is present.
+
2009-04-22 Anthony Green <green@moxielogic.com>
* configure.host: Add moxie support.
#include <sys/lock.h>
#include "atexit.h"
+/* Make this a weak reference to avoid pulling in malloc. */
+void * malloc(size_t) _ATTRIBUTE((__weak__));
/*
* Register a function to be performed at exit or on shared library unload.
#ifndef _ATEXIT_DYNAMIC_ALLOC
return -1;
#else
+ /* Don't dynamically allocate the atexit array if malloc is not
+ available. */
+ if (!malloc)
+ return -1;
+
p = (struct _atexit *) malloc (sizeof *p);
if (p == NULL)
{
args = p->_on_exit_args_ptr;
if (args == NULL)
{
- args = malloc (sizeof * p->_on_exit_args_ptr);
+ if (malloc)
+ args = malloc (sizeof * p->_on_exit_args_ptr);
+
if (args == NULL)
{
#ifndef __SINGLE_THREAD__
#include <reent.h>
#include "atexit.h"
+/* Make this a weak reference to avoid pulling in free. */
+void free(void *) _ATTRIBUTE((__weak__));
+
/*
* Call registered exit handlers. If D is null then all handlers are called,
* otherwise only the handlers from that DSO are called.
#ifndef _ATEXIT_DYNAMIC_ALLOC
break;
#else
+ /* Don't dynamically free the atexit array if free is not
+ available. */
+ if (!free)
+ break;
+
/* Move to the next block. Free empty blocks except the last one,
which is part of _GLOBAL_REENT. */
if (p->_ind == 0 && p->_next)