Line data    Source code

       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           0 : const T* GetOffset(const typename ElfClass::Ehdr* elf_header,
      40             :                    typename ElfClass::Off offset) {
      41           0 :   return reinterpret_cast<const T*>(reinterpret_cast<uintptr_t>(elf_header) +
      42           0 :                                     offset);
      43             : }
      44             : 
      45             : template<typename ElfClass>
      46           0 : 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           0 :   assert(name != NULL);
      54           0 :   assert(sections != NULL);
      55           0 :   assert(nsection > 0);
      56             : 
      57           0 :   int name_len = my_strlen(name);
      58           0 :   if (name_len == 0)
      59           0 :     return NULL;
      60             : 
      61           0 :   for (int i = 0; i < nsection; ++i) {
      62           0 :     const char* section_name = section_names + sections[i].sh_name;
      63           0 :     if (sections[i].sh_type == section_type &&
      64           0 :         names_end - section_name >= name_len + 1 &&
      65           0 :         my_strcmp(name, section_name) == 0) {
      66           0 :       return sections + i;
      67             :     }
      68             :   }
      69           0 :   return NULL;
      70             : }
      71             : 
      72             : }  // namespace google_breakpad
      73             : 
      74             : #endif  // COMMON_LINUX_ELFUTILS_INL_H__