58 lines
1.7 KiB
C
58 lines
1.7 KiB
C
/* ctors.c - constructor module */
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/*
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* Copyright (c) 2012-2014 Wind River Systems, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* DESCRIPTION
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* This module provides the C++ style constructor mechanism used by various
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* components to initialize themselves automatically.
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*
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* The _Ctors() routine is called from the nanokernel's _Cstart() routine after
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* hardware initialization has completed.
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*
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* Although ctors are traditionally a C++ feature, normal C code can use them
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* too through the appropriate use of GCC's constructor attribute.
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* No destructor support (dtors) is provided.
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*/
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/* What a constructor function pointer looks like */
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typedef void (*CtorFuncPtr)(void);
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/* Constructor function pointer list is generated by the linker script. */
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extern CtorFuncPtr __CTOR_LIST__[];
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extern CtorFuncPtr __CTOR_END__[];
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/**
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*
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* @brief Invoke all C++ style global object constructors
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*
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* This routine is invoked by the nanokernel routine _Cstart() after the basic
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* hardware has been initialized.
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*/
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void _Ctors(void)
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{
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unsigned int nCtors;
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nCtors = (unsigned int)__CTOR_LIST__[0];
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while (nCtors >= 1) {
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__CTOR_LIST__[nCtors--]();
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}
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}
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