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      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 
     14 using namespace mcld;
     15 
     16 //===----------------------------------------------------------------------===//
     17 // GeneralOptions
     18 //===----------------------------------------------------------------------===//
     19 GeneralOptions::GeneralOptions()
     20   : m_Verbose(-1),
     21     m_MaxErrorNum(-1),
     22     m_MaxWarnNum(-1),
     23     m_ExecStack(Unknown),
     24     m_NoUndefined(Unknown),
     25     m_MulDefs(Unknown),
     26     m_CommPageSize(0x0),
     27     m_MaxPageSize(0x0),
     28     m_bCombReloc(true),
     29     m_bInitFirst(false),
     30     m_bInterPose(false),
     31     m_bLoadFltr(false),
     32     m_bNoCopyReloc(false),
     33     m_bNoDefaultLib(false),
     34     m_bNoDelete(false),
     35     m_bNoDLOpen(false),
     36     m_bNoDump(false),
     37     m_bRelro(false),
     38     m_bNow(false),
     39     m_bOrigin(false),
     40     m_bTrace(false),
     41     m_Bsymbolic(false),
     42     m_Bgroup(false),
     43     m_bPIE(false),
     44     m_bColor(true),
     45     m_bCreateEhFrameHdr(false),
     46     m_bNMagic(false),
     47     m_bOMagic(false),
     48     m_bStripDebug(false),
     49     m_bExportDynamic(false),
     50     m_bWarnSharedTextrel(false),
     51     m_bBinaryInput(false),
     52     m_bDefineCommon(false),
     53     m_bFatalWarnings(false),
     54     m_bNewDTags(false),
     55     m_bNoStdlib(false),
     56     m_bWarnMismatch(true),
     57     m_bGCSections(false),
     58     m_bPrintGCSections(false),
     59     m_bGenUnwindInfo(true),
     60     m_bPrintICFSections(false),
     61     m_ICF(ICF_None),
     62     m_ICFIterations(0) ,
     63     m_GPSize(8),
     64     m_StripSymbols(KeepAllSymbols),
     65     m_HashStyle(SystemV) {
     66 }
     67 
     68 GeneralOptions::~GeneralOptions()
     69 {
     70 }
     71 
     72 void GeneralOptions::setSOName(const std::string& pName)
     73 {
     74   size_t pos = pName.find_last_of(sys::fs::separator);
     75   if (std::string::npos == pos)
     76     m_SOName = pName;
     77   else
     78     m_SOName = pName.substr(pos + 1);
     79 }
     80 
     81 void GeneralOptions::addZOption(const ZOption& pOption)
     82 {
     83   switch (pOption.kind()) {
     84     case ZOption::CombReloc:
     85       m_bCombReloc = true;
     86       break;
     87     case ZOption::NoCombReloc:
     88       m_bCombReloc = false;
     89       break;
     90     case ZOption::Defs:
     91       m_NoUndefined = YES;
     92       break;
     93     case ZOption::ExecStack:
     94       m_ExecStack = YES;
     95       break;
     96     case ZOption::NoExecStack:
     97       m_ExecStack = NO;
     98       break;
     99     case ZOption::InitFirst:
    100       m_bInitFirst = true;
    101       break;
    102     case ZOption::InterPose:
    103       m_bInterPose = true;
    104       break;
    105     case ZOption::LoadFltr:
    106       m_bLoadFltr = true;
    107       break;
    108     case ZOption::MulDefs:
    109       m_MulDefs = YES;
    110       break;
    111     case ZOption::NoCopyReloc:
    112       m_bNoCopyReloc = true;
    113       break;
    114     case ZOption::NoDefaultLib:
    115       m_bNoDefaultLib = true;
    116       break;
    117     case ZOption::NoDelete:
    118       m_bNoDelete = true;
    119       break;
    120     case ZOption::NoDLOpen:
    121       m_bNoDLOpen = true;
    122       break;
    123     case ZOption::NoDump:
    124       m_bNoDump = true;
    125       break;
    126     case ZOption::NoRelro:
    127       m_bRelro = false;
    128       break;
    129     case ZOption::Relro:
    130       m_bRelro = true;
    131       break;
    132     case ZOption::Lazy:
    133       m_bNow = false;
    134       break;
    135     case ZOption::Now:
    136       m_bNow = true;
    137       break;
    138     case ZOption::Origin:
    139       m_bOrigin = true;
    140       break;
    141     case ZOption::CommPageSize:
    142       m_CommPageSize = pOption.pageSize();
    143       break;
    144     case ZOption::MaxPageSize:
    145       m_MaxPageSize = pOption.pageSize();
    146       break;
    147     case ZOption::Unknown:
    148     default:
    149       assert(false && "Not a recognized -z option.");
    150       break;
    151   }
    152 }
    153 
    154 bool GeneralOptions::isInExcludeLIBS(const Input& pInput) const
    155 {
    156   assert(pInput.type() == Input::Archive);
    157 
    158   if (m_ExcludeLIBS.empty()) {
    159     return false;
    160   }
    161 
    162   // Specifying "--exclude-libs ALL" excludes symbols in all archive libraries
    163   // from automatic export.
    164   if (m_ExcludeLIBS.count("ALL") != 0) {
    165     return true;
    166   }
    167 
    168   std::string name(pInput.name());
    169   name.append(".a");
    170   if (m_ExcludeLIBS.count(name) != 0) {
    171     return true;
    172   }
    173 
    174   return false;
    175 }
    176