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