rt-thread-official/components/init/components.c

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/*
* File : components.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2012, RT-Thread Development Team
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rt-thread.org/license/LICENSE
*
* Change Logs:
* Date Author Notes
* 2012-09-20 Bernard Change the name to components.c
* And all components related header files.
* 2012-12-23 Bernard fix the pthread initialization issue.
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* 2013-06-23 Bernard Add the init_call for components initialization.
*/
#include "components.h"
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static int rti_start(void)
{
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return 0;
}
INIT_EXPORT(rti_start, "0");
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static int rti_board_end(void)
{
return 0;
}
INIT_EXPORT(rti_board_end, "1.post");
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static int rti_end(void)
{
return 0;
}
INIT_EXPORT(rti_end,"7");
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#if defined(_MSC_VER) || (defined(__GNUC__) && defined(__x86_64__))
/* fixed for MSC_VC and x86_64 in GNU GCC */
#define NEXT_COMPONENT_FN(fn_ptr, end) fn_ptr = _next_component_fn(fn_ptr, end)
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const init_fn_t* _next_component_fn(const init_fn_t* fn, const init_fn_t* end)
{
unsigned int *ptr;
ptr = (unsigned int*) (fn + 1);
while ((*ptr == 0) && ((unsigned int*)ptr < (unsigned int*)end))
ptr ++;
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return (const init_fn_t*)ptr;
}
#else
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#define NEXT_COMPONENT_FN(fn_ptr, end) fn_ptr++
#endif
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/**
* RT-Thread Components Initialization for board
*/
void rt_components_board_init(void)
{
const init_fn_t* fn_ptr;
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for (fn_ptr = &__rt_init_rti_start; fn_ptr < &__rt_init_rti_board_end; )
{
(*fn_ptr)();
NEXT_COMPONENT_FN(fn_ptr, __rt_init_rti_board_end);
}
}
/**
* RT-Thread Components Initialization
*/
void rt_components_init(void)
{
const init_fn_t* fn_ptr;
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for (fn_ptr = &__rt_init_rti_board_end; fn_ptr < &__rt_init_rti_end; )
{
(*fn_ptr)();
NEXT_COMPONENT_FN(fn_ptr, __rt_init_rti_end);
}
}
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