core: Remove incorrect usage of attribute_malloc.

GCC documentation states that when __attribute__((malloc)) is used it
should not return storage which contains any valid pointers.  It
specifically mentions that realloc functions should not have the malloc
attribute, but this also means that complex initializers which could
contain initialized pointers should not use this attribute.

Change-Id: If507f33ffb3ca3b83b702196eb0e8215d27fc7d2

include/asterisk/channel.h

@@ -1098,7 +1098,7 @@ enum ama_flags {
  * \deprecated You should use the ast_datastore_alloc() generic function instead.
  * \version 1.6.1 deprecated
  */
-struct ast_datastore * attribute_malloc ast_channel_datastore_alloc(const struct ast_datastore_info *info, const char *uid)
+struct ast_datastore *ast_channel_datastore_alloc(const struct ast_datastore_info *info, const char *uid)
 	__attribute__((deprecated));
 
 /*!
@@ -1157,7 +1157,7 @@ struct ast_datastore *ast_channel_datastore_find(struct ast_channel *chan, const
  *       and "default" context.
  * \note Since 12.0.0 this function returns with the newly created channel locked.
  */
-struct ast_channel * attribute_malloc __attribute__((format(printf, 15, 16)))
+struct ast_channel * __attribute__((format(printf, 15, 16)))
 	__ast_channel_alloc(int needqueue, int state, const char *cid_num,
 		const char *cid_name, const char *acctcode,
 		const char *exten, const char *context, const struct ast_assigned_ids *assignedids,

include/asterisk/datastore.h

@@ -80,7 +80,7 @@ struct ast_datastore {
  * \param file, line, function
  * \version 1.6.1 moved here and renamed from ast_channel_datastore_alloc
  */
-struct ast_datastore * attribute_malloc __ast_datastore_alloc(const struct ast_datastore_info *info, const char *uid,
+struct ast_datastore *__ast_datastore_alloc(const struct ast_datastore_info *info, const char *uid,
 							      const char *file, int line, const char *function);
 
 #define ast_datastore_alloc(info, uid) __ast_datastore_alloc(info, uid, __FILE__, __LINE__, __PRETTY_FUNCTION__)

include/asterisk/stringfields.h

@@ -443,7 +443,7 @@ int __ast_string_field_init(struct ast_string_field_mgr *mgr, struct ast_string_
  * \internal
  * \brief internal version of ast_calloc_with_stringfields
  */
-void * attribute_malloc __ast_calloc_with_stringfields(unsigned int num_structs,
+void *__ast_calloc_with_stringfields(unsigned int num_structs,
 	size_t struct_size, size_t field_mgr_offset, size_t field_mgr_pool_offset, size_t pool_size,
 	const char *file, int lineno, const char *func);
 

include/asterisk/utils.h

@@ -610,7 +610,7 @@ void * attribute_malloc _ast_calloc(size_t num, size_t len, const char *file, in
 	_ast_realloc((p), (len), __FILE__, __LINE__, __PRETTY_FUNCTION__)
 
 AST_INLINE_API(
-void * attribute_malloc _ast_realloc(void *p, size_t len, const char *file, int lineno, const char *func),
+void *_ast_realloc(void *p, size_t len, const char *file, int lineno, const char *func),
 {
 	void *newp;
 

main/channel.c

@@ -790,7 +790,7 @@ static int does_id_conflict(const char *uniqueid)
 }
 
 /*! \brief Create a new channel structure */
-static struct ast_channel * attribute_malloc __attribute__((format(printf, 15, 0)))
+static struct ast_channel *__attribute__((format(printf, 15, 0)))
 __ast_channel_alloc_ap(int needqueue, int state, const char *cid_num, const char *cid_name,
 		       const char *acctcode, const char *exten, const char *context, const struct ast_assigned_ids *assignedids,
 		       const struct ast_channel *requestor, enum ama_flags amaflag, struct ast_endpoint *endpoint,

utils/extconf.c

@@ -816,7 +816,7 @@ void * attribute_malloc _ast_calloc(size_t num, size_t len, const char *file, in
 	_ast_realloc((p), (len), __FILE__, __LINE__, __PRETTY_FUNCTION__)
 
 AST_INLINE_API(
-void * attribute_malloc _ast_realloc(void *p, size_t len, const char *file, int lineno, const char *func),
+void *_ast_realloc(void *p, size_t len, const char *file, int lineno, const char *func),
 {
 	void *newp;