michael@0: // Copyright (c) 2012, Google Inc.
michael@0: // All rights reserved.
michael@0: //
michael@0: // Redistribution and use in source and binary forms, with or without
michael@0: // modification, are permitted provided that the following conditions are
michael@0: // met:
michael@0: //
michael@0: //     * Redistributions of source code must retain the above copyright
michael@0: // notice, this list of conditions and the following disclaimer.
michael@0: //     * Redistributions in binary form must reproduce the above
michael@0: // copyright notice, this list of conditions and the following disclaimer
michael@0: // in the documentation and/or other materials provided with the
michael@0: // distribution.
michael@0: //     * Neither the name of Google Inc. nor the names of its
michael@0: // contributors may be used to endorse or promote products derived from
michael@0: // this software without specific prior written permission.
michael@0: //
michael@0: // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
michael@0: // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
michael@0: // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
michael@0: // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
michael@0: // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
michael@0: // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
michael@0: // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
michael@0: // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
michael@0: // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
michael@0: // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
michael@0: // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
michael@0: 
michael@0: #ifndef COMMON_LINUX_ELFUTILS_INL_H__
michael@0: #define COMMON_LINUX_ELFUTILS_INL_H__
michael@0: 
michael@0: #include "common/linux/linux_libc_support.h"
michael@0: #include "elfutils.h"
michael@0: 
michael@0: namespace google_breakpad {
michael@0: 
michael@0: template<typename ElfClass, typename T>
michael@0: const T* GetOffset(const typename ElfClass::Ehdr* elf_header,
michael@0:                    typename ElfClass::Off offset) {
michael@0:   return reinterpret_cast<const T*>(reinterpret_cast<uintptr_t>(elf_header) +
michael@0:                                     offset);
michael@0: }
michael@0: 
michael@0: template<typename ElfClass>
michael@0: const typename ElfClass::Shdr* FindElfSectionByName(
michael@0:     const char* name,
michael@0:     typename ElfClass::Word section_type,
michael@0:     const typename ElfClass::Shdr* sections,
michael@0:     const char* section_names,
michael@0:     const char* names_end,
michael@0:     int nsection) {
michael@0:   assert(name != NULL);
michael@0:   assert(sections != NULL);
michael@0:   assert(nsection > 0);
michael@0: 
michael@0:   int name_len = my_strlen(name);
michael@0:   if (name_len == 0)
michael@0:     return NULL;
michael@0: 
michael@0:   for (int i = 0; i < nsection; ++i) {
michael@0:     const char* section_name = section_names + sections[i].sh_name;
michael@0:     if (sections[i].sh_type == section_type &&
michael@0:         names_end - section_name >= name_len + 1 &&
michael@0:         my_strcmp(name, section_name) == 0) {
michael@0:       return sections + i;
michael@0:     }
michael@0:   }
michael@0:   return NULL;
michael@0: }
michael@0: 
michael@0: }  // namespace google_breakpad
michael@0: 
michael@0: #endif  // COMMON_LINUX_ELFUTILS_INL_H__