forked from Archive/PX4-Autopilot
135 lines
4.6 KiB
C
135 lines
4.6 KiB
C
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/****************************************************************************
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* binfmt/libelf/libelf_ctors.c
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*
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* Copyright (C) 2012 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <debug.h>
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#include <nuttx/binfmt/elf.h>
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#include "libelf"
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#ifdef CONFIG_ELF_CONSTRUCTORS
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/****************************************************************************
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* Pre-Processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Private Types
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****************************************************************************/
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typedef FAR void (*ctor_t)(void);
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/****************************************************************************
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* Private Constant Data
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****************************************************************************/
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: elf_findctors
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*
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* Description:
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* Find C++ static constructors.
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*
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* Input Parameters:
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* loadinfo - Load state information
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*
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* Returned Value:
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* 0 (OK) is returned on success and a negated errno is returned on
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* failure.
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*
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****************************************************************************/
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int elf_findctors(FAR struct elf_loadinfo_s *loadinfo)
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{
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/* Search through the shdr[] array in loadinfo for a section named .ctors */
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#warning "Missing logic"
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/* Get the address of the beginning of the constructros from the sh_addr
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* field of the section. Save that in the ctors field of the loadinfo
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* structure.
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*/
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#warning "Missing logic"
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/* Get the number of constructors from the sh_size field of the section.
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* Save that number in the nctors field of the loadinfo structure.
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*/
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#warning "Missing logic"
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return -ENOSYS;
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}
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/****************************************************************************
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* Name: elf_doctors
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*
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* Description:
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* Execute C++ static constructors.
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*
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* Input Parameters:
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* loadinfo - Load state information
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*
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* Returned Value:
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* 0 (OK) is returned on success and a negated errno is returned on
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* failure.
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*
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****************************************************************************/
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int elf_doctors(FAR struct elf_loadinfo_s *loadinfo)
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{
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ctor_t ctor = (ctor_t)loadinfo->ctors;
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int i;
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/* Execute each constructor */
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for (i = 0; i < loadinfo->nctors; i++)
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{
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ctor();
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ctor++;
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}
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}
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#endif /* CONFIG_ELF_CONSTRUCTORS
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