GeneralOptions.cpp revision cfcb22478ca64c308df58f9abe6fa2dedb213c16 
1//===- GeneralOptions.cpp -------------------------------------------------===//
2//
3//                     The MCLinker Project
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9#include "mcld/GeneralOptions.h"
10#include "mcld/MC/Input.h"
11#include "mcld/MC/ZOption.h"
12#include <cassert>
13
14namespace mcld {
15
16//===----------------------------------------------------------------------===//
17// GeneralOptions
18//===----------------------------------------------------------------------===//
19GeneralOptions::GeneralOptions()
20    : m_Verbose(-1),
21      m_MaxErrorNum(-1),
22      m_MaxWarnNum(-1),
23      m_NumSpareDTags(5),
24      m_ExecStack(Unknown),
25      m_NoUndefined(Unknown),
26      m_MulDefs(Unknown),
27      m_CommPageSize(0x0),
28      m_MaxPageSize(0x0),
29      m_bCombReloc(true),
30      m_bInitFirst(false),
31      m_bInterPose(false),
32      m_bLoadFltr(false),
33      m_bNoCopyReloc(false),
34      m_bNoDefaultLib(false),
35      m_bNoDelete(false),
36      m_bNoDLOpen(false),
37      m_bNoDump(false),
38      m_bRelro(false),
39      m_bNow(false),
40      m_bOrigin(false),
41      m_bTrace(false),
42      m_Bsymbolic(false),
43      m_Bgroup(false),
44      m_bPIE(false),
45      m_bColor(true),
46      m_bCreateEhFrameHdr(false),
47      m_bNMagic(false),
48      m_bOMagic(false),
49      m_bStripDebug(false),
50      m_bExportDynamic(false),
51      m_bWarnSharedTextrel(false),
52      m_bBinaryInput(false),
53      m_bDefineCommon(false),
54      m_bFatalWarnings(false),
55      m_bNewDTags(false),
56      m_bNoStdlib(false),
57      m_bWarnMismatch(true),
58      m_bGCSections(false),
59      m_bPrintGCSections(false),
60      m_bGenUnwindInfo(true),
61      m_bPrintICFSections(false),
62      m_ICF(ICF::None),
63      m_ICFIterations(2),
64      m_StripSymbols(StripSymbolMode::KeepAllSymbols),
65      m_HashStyle(HashStyle::SystemV) {
66}
67
68GeneralOptions::~GeneralOptions() {
69}
70
71void GeneralOptions::setSOName(const std::string& pName) {
72  size_t pos = pName.find_last_of(sys::fs::separator);
73  if (std::string::npos == pos)
74    m_SOName = pName;
75  else
76    m_SOName = pName.substr(pos + 1);
77}
78
79void GeneralOptions::addZOption(const ZOption& pOption) {
80  switch (pOption.kind()) {
81    case ZOption::CombReloc:
82      m_bCombReloc = true;
83      break;
84    case ZOption::NoCombReloc:
85      m_bCombReloc = false;
86      break;
87    case ZOption::Defs:
88      m_NoUndefined = YES;
89      break;
90    case ZOption::ExecStack:
91      m_ExecStack = YES;
92      break;
93    case ZOption::NoExecStack:
94      m_ExecStack = NO;
95      break;
96    case ZOption::InitFirst:
97      m_bInitFirst = true;
98      break;
99    case ZOption::InterPose:
100      m_bInterPose = true;
101      break;
102    case ZOption::LoadFltr:
103      m_bLoadFltr = true;
104      break;
105    case ZOption::MulDefs:
106      m_MulDefs = YES;
107      break;
108    case ZOption::NoCopyReloc:
109      m_bNoCopyReloc = true;
110      break;
111    case ZOption::NoDefaultLib:
112      m_bNoDefaultLib = true;
113      break;
114    case ZOption::NoDelete:
115      m_bNoDelete = true;
116      break;
117    case ZOption::NoDLOpen:
118      m_bNoDLOpen = true;
119      break;
120    case ZOption::NoDump:
121      m_bNoDump = true;
122      break;
123    case ZOption::NoRelro:
124      m_bRelro = false;
125      break;
126    case ZOption::Relro:
127      m_bRelro = true;
128      break;
129    case ZOption::Lazy:
130      m_bNow = false;
131      break;
132    case ZOption::Now:
133      m_bNow = true;
134      break;
135    case ZOption::Origin:
136      m_bOrigin = true;
137      break;
138    case ZOption::CommPageSize:
139      m_CommPageSize = pOption.pageSize();
140      break;
141    case ZOption::MaxPageSize:
142      m_MaxPageSize = pOption.pageSize();
143      break;
144    case ZOption::Unknown:
145    default:
146      assert(false && "Not a recognized -z option.");
147      break;
148  }
149}
150
151bool GeneralOptions::isInExcludeLIBS(const Input& pInput) const {
152  assert(pInput.type() == Input::Archive);
153
154  if (m_ExcludeLIBS.empty()) {
155    return false;
156  }
157
158  // Specifying "--exclude-libs ALL" excludes symbols in all archive libraries
159  // from automatic export.
160  if (m_ExcludeLIBS.count("ALL") != 0) {
161    return true;
162  }
163
164  std::string name(pInput.name());
165  name.append(".a");
166  if (m_ExcludeLIBS.count(name) != 0) {
167    return true;
168  }
169
170  return false;
171}
172
173}  // namespace mcld
174