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1 // Copyright (c) 2011 The Native Client Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "dwarf_reader/elf_section_reader.h" | |
6 | |
7 namespace dwarf_reader { | |
8 | |
9 ElfSectionReader::ElfSectionReader() : byte_reader_(NULL) {} | |
10 | |
11 ElfSectionReader::~ElfSectionReader() { | |
12 if (byte_reader_) | |
13 delete byte_reader_; | |
14 } | |
15 | |
16 const dwarf2reader::SectionMap& ElfSectionReader::sections() const { | |
17 return sections_; | |
18 } | |
19 | |
20 void ElfSectionReader::Init(const char *name, | |
21 void *data, | |
22 uint64_t length, | |
23 uint32_t classSize, | |
24 bool is_little_endian) { | |
25 if (is_little_endian) | |
26 byte_reader_ = new dwarf2reader::ByteReader( | |
27 dwarf2reader::ENDIANNESS_LITTLE); | |
28 else | |
29 byte_reader_ = new dwarf2reader::ByteReader( | |
30 dwarf2reader::ENDIANNESS_BIG); | |
31 } | |
32 | |
33 bool ElfSectionReader::SectionHeadersStart(uint32_t count) { | |
34 return true; | |
35 } | |
36 | |
37 void ElfSectionReader::AddSectionHeader(const char *name, | |
38 void *data, | |
39 uint64_t virt, | |
40 uint32_t type, | |
41 uint32_t flags, | |
42 uint64_t length) { | |
43 const char *ptr = reinterpret_cast<const char *>(data); | |
44 sections_[name] = SectionInfo(ptr, length); | |
45 loadAddresses_[name] = virt; | |
46 } | |
47 | |
48 dwarf2reader::ByteReader *ElfSectionReader::GetByteReader() const { | |
49 return byte_reader_; | |
50 } | |
51 | |
52 SectionInfo ElfSectionReader::GetSectionInfo(const char *name) const { | |
53 dwarf2reader::SectionMap::const_iterator map_iter = | |
54 sections_.find(name); | |
55 if (map_iter != sections_.end()) | |
56 return map_iter->second; | |
57 else | |
58 return SectionInfo(NULL, 0); | |
59 } | |
60 | |
61 uint64 ElfSectionReader::GetSectionLoadAddress(const char *name) const { | |
62 LoadAddressMap::const_iterator address_iter = | |
63 loadAddresses_.find(name); | |
64 if (address_iter != loadAddresses_.end()) | |
65 return address_iter->second; | |
66 else | |
67 return 0; | |
68 } | |
69 | |
70 bool ElfSectionReader::IsEmpty() const { | |
71 return (sections_.empty() || loadAddresses_.empty()); | |
72 } | |
73 | |
74 } // namespace dwarf_reader | |
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