zephyr/misc/cpp_ctors.c

54 lines
1.5 KiB
C

/*
* Copyright (c) 2012-2014 Wind River Systems, Inc.
*
* 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.
*/
/**
* @file - Constructor module
* @brief
* The ctors section contains a list of function pointers that execute the
* C++ constructors of static global objects. These must be executed before
* the application's main() routine.
*
* NOTE: Not all compilers put those function pointers into the ctors section;
* some put them into the init_array section instead.
*/
/* What a constructor function pointer looks like */
typedef void (*CtorFuncPtr)(void);
/* Constructor function pointer list is generated by the linker script. */
extern CtorFuncPtr __CTOR_LIST__[];
extern CtorFuncPtr __CTOR_END__[];
/**
*
* @brief Invoke all C++ style global object constructors
*
* This routine is invoked by the kernel prior to the execution of the
* application's main().
*/
void __do_global_ctors_aux(void)
{
unsigned int nCtors;
nCtors = (unsigned int)__CTOR_LIST__[0];
while (nCtors >= 1) {
__CTOR_LIST__[nCtors--]();
}
}