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Diffstat (limited to 'nuttx/binfmt/libelf/libelf_ctors.c')
-rw-r--r-- | nuttx/binfmt/libelf/libelf_ctors.c | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/nuttx/binfmt/libelf/libelf_ctors.c b/nuttx/binfmt/libelf/libelf_ctors.c new file mode 100644 index 000000000..e8b095bb7 --- /dev/null +++ b/nuttx/binfmt/libelf/libelf_ctors.c @@ -0,0 +1,134 @@ +/**************************************************************************** + * binfmt/libelf/libelf_ctors.c + * + * Copyright (C) 2012 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <debug.h> + +#include <nuttx/binfmt/elf.h> + +#include "libelf" + +#ifdef CONFIG_ELF_CONSTRUCTORS + +/**************************************************************************** + * Pre-Processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +typedef FAR void (*ctor_t)(void); + +/**************************************************************************** + * Private Constant Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: elf_findctors + * + * Description: + * Find C++ static constructors. + * + * Input Parameters: + * loadinfo - Load state information + * + * Returned Value: + * 0 (OK) is returned on success and a negated errno is returned on + * failure. + * + ****************************************************************************/ + +int elf_findctors(FAR struct elf_loadinfo_s *loadinfo) +{ + /* Search through the shdr[] array in loadinfo for a section named .ctors */ +#warning "Missing logic" + + /* Get the address of the beginning of the constructros from the sh_addr + * field of the section. Save that in the ctors field of the loadinfo + * structure. + */ +#warning "Missing logic" + + /* Get the number of constructors from the sh_size field of the section. + * Save that number in the nctors field of the loadinfo structure. + */ +#warning "Missing logic" + return -ENOSYS; +} + +/**************************************************************************** + * Name: elf_doctors + * + * Description: + * Execute C++ static constructors. + * + * Input Parameters: + * loadinfo - Load state information + * + * Returned Value: + * 0 (OK) is returned on success and a negated errno is returned on + * failure. + * + ****************************************************************************/ + +int elf_doctors(FAR struct elf_loadinfo_s *loadinfo) +{ + ctor_t ctor = (ctor_t)loadinfo->ctors; + int i; + + /* Execute each constructor */ + + for (i = 0; i < loadinfo->nctors; i++) + { + ctor(); + ctor++; + } +} + +#endif /* CONFIG_ELF_CONSTRUCTORS |