69 lines
1.8 KiB
C
69 lines
1.8 KiB
C
/*
|
|
* Copyright (c) 2006-2021, RT-Thread Development Team
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* Change Logs:
|
|
* Date Author Notes
|
|
* 2014-12-03 Bernard Add copyright header.
|
|
* 2014-12-29 Bernard Add cplusplus initialization for ARMCC.
|
|
* 2016-06-28 Bernard Add _init/_fini routines for GCC.
|
|
* 2016-10-02 Bernard Add WEAK for cplusplus_system_init routine.
|
|
*/
|
|
|
|
#include <rtthread.h>
|
|
|
|
#if defined(__ARMCC_VERSION)
|
|
extern void $Super$$__cpp_initialize__aeabi_(void);
|
|
/* we need to change the cpp_initialize order */
|
|
rt_weak void $Sub$$__cpp_initialize__aeabi_(void)
|
|
{
|
|
/* empty */
|
|
}
|
|
#elif defined(__GNUC__) && !defined(__CS_SOURCERYGXX_MAJ__)
|
|
/* The _init()/_fini() routines has been defined in codesourcery g++ lite */
|
|
rt_weak void _init()
|
|
{
|
|
}
|
|
|
|
rt_weak void _fini()
|
|
{
|
|
}
|
|
|
|
rt_weak void *__dso_handle = 0;
|
|
|
|
#endif
|
|
|
|
rt_weak int cplusplus_system_init(void)
|
|
{
|
|
#if defined(__ARMCC_VERSION)
|
|
/* If there is no SHT$$INIT_ARRAY, calling
|
|
* $Super$$__cpp_initialize__aeabi_() will cause fault. At least until Keil5.12
|
|
* the problem still exists. So we have to initialize the C++ runtime by ourself.
|
|
*/
|
|
typedef void PROC();
|
|
extern const unsigned long SHT$$INIT_ARRAY$$Base[];
|
|
extern const unsigned long SHT$$INIT_ARRAY$$Limit[];
|
|
|
|
const unsigned long *base = SHT$$INIT_ARRAY$$Base;
|
|
const unsigned long *lim = SHT$$INIT_ARRAY$$Limit;
|
|
|
|
for (; base != lim; base++)
|
|
{
|
|
PROC *proc = (PROC *)((const char *)base + *base);
|
|
(*proc)();
|
|
}
|
|
#elif defined(__GNUC__)
|
|
typedef void(*pfunc)();
|
|
extern pfunc __ctors_start__[];
|
|
extern pfunc __ctors_end__[];
|
|
pfunc *p;
|
|
|
|
for (p = __ctors_start__; p < __ctors_end__; p++)
|
|
(*p)();
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
INIT_COMPONENT_EXPORT(cplusplus_system_init);
|