zephyr/subsys/cpp/cpp_ctors.c
Nicolas Pitre 2bdfede0f8 cpp: support for 64-bit constructors
Make constructors work in a 64-bit build.

Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
2019-07-30 18:55:34 -07:00

44 lines
1 KiB
C

/*
* Copyright (c) 2012-2014 Wind River Systems, Inc.
*
* SPDX-License-Identifier: Apache-2.0
*/
/**
* @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 long)__CTOR_LIST__[0];
while (nCtors >= 1U) {
__CTOR_LIST__[nCtors--]();
}
}