1// Copyright (c) 2012, Google Inc.
2// All rights reserved.
3//
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5// modification, are permitted provided that the following conditions are
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17//
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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
36namespace google_breakpad {
37
38template<typename ElfClass, typename T>
39const 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
45template<typename ElfClass>
46const 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