1 // Copyright (c) 2012, Google Inc. 2 // All rights reserved. 3 // 4 // Redistribution and use in source and binary forms, with or without 5 // modification, are permitted provided that the following conditions are 6 // met: 7 // 8 // * Redistributions of source code must retain the above copyright 9 // notice, this list of conditions and the following disclaimer. 10 // * Redistributions in binary form must reproduce the above 11 // copyright notice, this list of conditions and the following disclaimer 12 // in the documentation and/or other materials provided with the 13 // distribution. 14 // * Neither the name of Google Inc. nor the names of its 15 // contributors may be used to endorse or promote products derived from 16 // this software without specific prior written permission. 17 // 18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 30 #ifndef COMMON_LINUX_ELFUTILS_INL_H__ 31 #define COMMON_LINUX_ELFUTILS_INL_H__ 32 33 #include "common/linux/linux_libc_support.h" 34 #include "elfutils.h" 35 36 namespace google_breakpad { 37 38 template<typename ElfClass, typename T> 39 const T* GetOffset(const typename ElfClass::Ehdr* elf_header, 40 typename ElfClass::Off offset) { 41 return reinterpret_cast<const T*>(reinterpret_cast<uintptr_t>(elf_header) + 42 offset); 43 } 44 45 template<typename ElfClass> 46 const typename ElfClass::Shdr* FindElfSectionByName( 47 const char* name, 48 typename ElfClass::Word section_type, 49 const typename ElfClass::Shdr* sections, 50 const char* section_names, 51 const char* names_end, 52 int nsection) { 53 assert(name != NULL); 54 assert(sections != NULL); 55 assert(nsection > 0); 56 57 int name_len = my_strlen(name); 58 if (name_len == 0) 59 return NULL; 60 61 for (int i = 0; i < nsection; ++i) { 62 const char* section_name = section_names + sections[i].sh_name; 63 if (sections[i].sh_type == section_type && 64 names_end - section_name >= name_len + 1 && 65 my_strcmp(name, section_name) == 0) { 66 return sections + i; 67 } 68 } 69 return NULL; 70 } 71 72 } // namespace google_breakpad 73 74 #endif // COMMON_LINUX_ELFUTILS_INL_H__ 75