mirror of
https://github.com/jerryscript-project/jerryscript.git
synced 2025-12-15 16:29:21 +00:00
4b9e458f44
The arrays contain the addresses of functions annotated with constructor or destructor attributes. The support is optional, requires FEATURE_INIT_FINI cmake option to be set. As of now, the option is _not_ available in tools/build.py directly, only via `--cmake-param="-DFEATURE_INIT_FINI=ON"`. JerryScript-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu
99 lines
2.5 KiB
C
99 lines
2.5 KiB
C
/* Copyright JS Foundation and other contributors, http://js.foundation
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*
|
|
* This file is based on work under the following copyright and permission
|
|
* notice:
|
|
*
|
|
* Copyright (C) 2004 CodeSourcery, LLC
|
|
*
|
|
* Permission to use, copy, modify, and distribute this file
|
|
* for any purpose is hereby granted without fee, provided that
|
|
* the above copyright notice and this notice appears in all
|
|
* copies.
|
|
*
|
|
* This file is distributed WITHOUT ANY WARRANTY; without even the implied
|
|
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
|
*/
|
|
|
|
#include "jerry-libc-defs.h"
|
|
|
|
#ifdef ENABLE_INIT_FINI
|
|
|
|
/* These magic symbols are provided by the linker. */
|
|
typedef void (*libc_init_fn_t) (void);
|
|
|
|
extern libc_init_fn_t __preinit_array_start[] __attr_weak___;
|
|
extern libc_init_fn_t __preinit_array_end[] __attr_weak___;
|
|
extern libc_init_fn_t __init_array_start[] __attr_weak___;
|
|
extern libc_init_fn_t __init_array_end[] __attr_weak___;
|
|
extern libc_init_fn_t __fini_array_start[] __attr_weak___;
|
|
extern libc_init_fn_t __fini_array_end[] __attr_weak___;
|
|
extern void _init (void);
|
|
extern void _fini (void);
|
|
|
|
|
|
/**
|
|
* No-op default _init.
|
|
*/
|
|
void __attr_weak___
|
|
_init (void)
|
|
{
|
|
} /* _init */
|
|
|
|
/**
|
|
* No-op default _fini.
|
|
*/
|
|
void __attr_weak___
|
|
_fini (void)
|
|
{
|
|
} /* _fini */
|
|
|
|
/**
|
|
* Iterate over all the init routines.
|
|
*/
|
|
void
|
|
libc_init_array (void)
|
|
{
|
|
size_t count = (size_t) (__preinit_array_end - __preinit_array_start);
|
|
for (size_t i = 0; i < count; i++)
|
|
{
|
|
__preinit_array_start[i] ();
|
|
}
|
|
|
|
_init ();
|
|
|
|
count = (size_t) (__init_array_end - __init_array_start);
|
|
for (size_t i = 0; i < count; i++)
|
|
{
|
|
__init_array_start[i] ();
|
|
}
|
|
} /* libc_init_array */
|
|
|
|
/**
|
|
* Run all the cleanup routines.
|
|
*/
|
|
void
|
|
libc_fini_array (void)
|
|
{
|
|
size_t count = (size_t) (__fini_array_end - __fini_array_start);
|
|
for (size_t i = count; i > 0; i--)
|
|
{
|
|
__fini_array_start[i - 1] ();
|
|
}
|
|
|
|
_fini ();
|
|
} /* libc_fini_array */
|
|
|
|
#endif /* ENABLE_INIT_FINI */
|