1/*
2 * Copyright 2011, The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *     http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef ELF_SECTION_HEADER_HXX
18#define ELF_SECTION_HEADER_HXX
19
20#include "utils/raw_ostream.h"
21#include <llvm/Support/Format.h>
22#include <llvm/Support/raw_ostream.h>
23
24#include "ELFObject.h"
25
26template <unsigned Bitwidth>
27char const *ELFSectionHeader_CRTP<Bitwidth>::getName() const {
28  return owner->getSectionName(getNameIndex());
29}
30
31template <unsigned Bitwidth>
32template <typename Archiver>
33typename ELFSectionHeader_CRTP<Bitwidth>::ELFSectionHeaderTy *
34ELFSectionHeader_CRTP<Bitwidth>::read(Archiver &AR,
35                                      ELFObjectTy const *owner,
36                                      size_t index) {
37
38  if (!AR) {
39    // Archiver is in bad state before calling read function.
40    // Return NULL and do nothing.
41    return 0;
42  }
43
44  llvm::OwningPtr<ELFSectionHeaderTy> sh(new ELFSectionHeaderTy());
45
46  if (!sh->serialize(AR)) {
47    // Unable to read the structure.  Return NULL.
48    return 0;
49  }
50
51  if (!sh->isValid()) {
52    // Header read from archiver is not valid.  Return NULL.
53    return 0;
54  }
55
56  // Set the section header index
57  sh->index = index;
58
59  // Set the owner elf object
60  sh->owner = owner;
61
62  return sh.take();
63}
64
65template <unsigned Bitwidth>
66void ELFSectionHeader_CRTP<Bitwidth>::print(bool shouldPrintHeader) const {
67  using namespace llvm;
68
69  if (shouldPrintHeader) {
70    out() << '\n' << fillformat('=', 79) << '\n';
71    out().changeColor(raw_ostream::WHITE, true);
72    out() << "ELF Section Header "
73      << this->getIndex() << '\n';
74    out().resetColor();
75    out() << fillformat('-', 79) << '\n';
76  } else {
77    out() << fillformat('-', 79) << '\n';
78    out().changeColor(raw_ostream::YELLOW, true);
79    out() << "ELF Section Header "
80      << this->getIndex() << " : " << '\n';
81    out().resetColor();
82  }
83
84#define PRINT_LINT(title, value) \
85  out() << format("  %-13s : ", (char const *)(title)) << (value) << '\n'
86  PRINT_LINT("Name",          getName() );
87  PRINT_LINT("Type",          getSectionTypeStr(getType()));
88  PRINT_LINT("Flags",         concrete()->getFlags());
89  PRINT_LINT("Address",       getAddress());
90  PRINT_LINT("Offset",        getOffset());
91  PRINT_LINT("Size",          concrete()->getSize());
92  PRINT_LINT("Link",          getLink());
93  PRINT_LINT("Extra Info",    getExtraInfo());
94  PRINT_LINT("Address Align", concrete()->getAddressAlign());
95  PRINT_LINT("Entry Size",    concrete()->getEntrySize());
96#undef PRINT_LINT
97
98  if (shouldPrintHeader) {
99    out() << fillformat('=', 79) << '\n';
100  }
101}
102
103#endif // ELF_SECTION_HEADER_HXX
104