ELFReloc.hxx revision ee6cdb95525abc8c7766798148302306a100b774 
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_RELOC_HXX
18#define ELF_RELOC_HXX
19
20#include "utils/raw_ostream.h"
21
22#include <llvm/Support/Format.h>
23#include <llvm/Support/raw_ostream.h>
24
25template <unsigned Bitwidth>
26template <typename Archiver>
27inline ELFReloc<Bitwidth> *
28ELFReloc_CRTP<Bitwidth>::readRela(Archiver &AR, size_t index) {
29  if (!AR) {
30    // Archiver is in bad state before calling read function.
31    // Return NULL and do nothing.
32    return 0;
33  }
34
35  llvm::OwningPtr<ELFRelocTy> sh(new ELFRelocTy());
36
37  if (!sh->serializeRela(AR)) {
38    // Unable to read the structure.  Return NULL.
39    return 0;
40  }
41
42  if (!sh->isValid()) {
43    // Rel read from archiver is not valid.  Return NULL.
44    return 0;
45  }
46
47  // Set the section header index
48  sh->index = index;
49
50  return sh.take();
51}
52
53template <unsigned Bitwidth>
54template <typename Archiver>
55inline ELFReloc<Bitwidth> *
56ELFReloc_CRTP<Bitwidth>::readRel(Archiver &AR, size_t index) {
57  if (!AR) {
58    // Archiver is in bad state before calling read function.
59    // Return NULL and do nothing.
60    return 0;
61  }
62
63  llvm::OwningPtr<ELFRelocTy> sh(new ELFRelocTy());
64
65  sh->r_addend = 0;
66  if (!sh->serializeRel(AR)) {
67    return 0;
68  }
69
70  if (!sh->isValid()) {
71    // Rel read from archiver is not valid.  Return NULL.
72    return 0;
73  }
74
75  // Set the section header index
76  sh->index = index;
77
78  return sh.take();
79}
80
81template <unsigned Bitwidth>
82inline void ELFReloc_CRTP<Bitwidth>::print(bool shouldPrintHeader) const {
83  using namespace llvm;
84  if (shouldPrintHeader) {
85    out() << '\n' << fillformat('=', 79) << '\n';
86    out().changeColor(raw_ostream::WHITE, true);
87    out() << "ELF Relaocation Table Entry "
88          << this->getIndex() << '\n';
89    out().resetColor();
90    out() << fillformat('-', 79) << '\n';
91  } else {
92    out() << fillformat('-', 79) << '\n';
93    out().changeColor(raw_ostream::YELLOW, true);
94    out() << "ELF Relaocation Table Entry "
95          << this->getIndex() << " : " << '\n';
96    out().resetColor();
97  }
98
99#define PRINT_LINT(title, value) \
100  out() << format("  %-13s : ", (char const *)(title)) << (value) << '\n'
101  PRINT_LINT("Offset",       concrete()->getOffset()       );
102  PRINT_LINT("SymTab Index", concrete()->getSymTabIndex()  );
103  PRINT_LINT("Type",         concrete()->getType()         );
104  PRINT_LINT("Addend",       concrete()->getAddend()       );
105#undef PRINT_LINT
106}
107
108#endif // ELF_RELOC_HXX
109