/* -*- mode: C++; c-basic-offset: 4; tab-width: 4 -*-
*
- * Copyright (c) 2005-2008 Apple Inc. All rights reserved.
+ * Copyright (c) 2005-2010 Apple Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
#include <mach/vm_prot.h>
#include <mach-o/dyld.h>
#include <fcntl.h>
+
#include <vector>
#include "configure.h"
#include "Architectures.hpp"
#include "MachOFileAbstraction.hpp"
-extern void printLTOVersion(Options &opts);
+// upward dependency on lto::version()
+namespace lto {
+ extern const char* version();
+}
// magic to place command line in crash reports
+const int crashreporterBufferSize = 2000;
extern "C" char* __crashreporter_info__;
-static char crashreporterBuffer[1000];
+static char crashreporterBuffer[crashreporterBufferSize];
char* __crashreporter_info__ = crashreporterBuffer;
static bool sEmitWarnings = true;
}
Options::Options(int argc, const char* argv[])
- : fOutputFile("a.out"), fArchitecture(0), fSubArchitecture(0), fOutputKind(kDynamicExecutable),
+ : fOutputFile("a.out"), fArchitecture(0), fSubArchitecture(0), fArchitectureName("unknown"), fOutputKind(kDynamicExecutable),
fHasPreferredSubType(false), fPrebind(false), fBindAtLoad(false), fKeepPrivateExterns(false),
fNeedsModuleTable(false), fIgnoreOtherArchFiles(false), fErrorOnOtherArchFiles(false), fForceSubtypeAll(false),
- fInterposeMode(kInterposeNone), fDeadStrip(kDeadStripOff), fNameSpace(kTwoLevelNameSpace),
- fDylibCompatVersion(0), fDylibCurrentVersion(0), fDylibInstallName(NULL), fFinalName(NULL), fEntryName("start"), fBaseAddress(0),
+ fInterposeMode(kInterposeNone), fDeadStrip(false), fNameSpace(kTwoLevelNameSpace),
+ fDylibCompatVersion(0), fDylibCurrentVersion(0), fDylibInstallName(NULL), fFinalName(NULL), fEntryName("start"),
+ fBaseAddress(0), fMaxAddress(0x7FFFFFFFFFFFFFFFLL),
fBaseWritableAddress(0), fSplitSegs(false),
- fExportMode(kExportDefault), fLibrarySearchMode(kSearchAllDirsForDylibsThenAllDirsForArchives),
- fUndefinedTreatment(kUndefinedError), fMessagesPrefixedWithArchitecture(false),
+ fExportMode(kExportDefault), fLibrarySearchMode(kSearchDylibAndArchiveInEachDir),
+ fUndefinedTreatment(kUndefinedError), fMessagesPrefixedWithArchitecture(true),
fWeakReferenceMismatchTreatment(kWeakReferenceMismatchNonWeak),
fClientName(NULL),
fUmbrellaName(NULL), fInitFunctionName(NULL), fDotOutputFile(NULL), fExecutablePath(NULL),
fBundleLoader(NULL), fDtraceScriptName(NULL), fSegAddrTablePath(NULL), fMapPath(NULL),
+ fDyldInstallPath("/usr/lib/dyld"), fTempLtoObjectPath(NULL),
fZeroPageSize(ULLONG_MAX), fStackSize(0), fStackAddr(0), fExecutableStack(false),
+ fNonExecutableHeap(false), fDisableNonExecutableHeap(false),
fMinimumHeaderPad(32), fSegmentAlignment(4096),
fCommonsMode(kCommonsIgnoreDylibs), fUUIDMode(kUUIDContent), fLocalSymbolHandling(kLocalSymbolsAll), fWarnCommons(false),
fVerbose(false), fKeepRelocations(false), fWarnStabs(false),
fTraceDylibSearching(false), fPause(false), fStatistics(false), fPrintOptions(false),
fSharedRegionEligible(false), fPrintOrderFileStatistics(false),
- fReadOnlyx86Stubs(false), fPositionIndependentExecutable(false),
+ fReadOnlyx86Stubs(false), fPositionIndependentExecutable(false), fPIEOnCommandLine(false),
fDisablePositionIndependentExecutable(false), fMaxMinimumHeaderPad(false),
fDeadStripDylibs(false), fAllowTextRelocs(false), fWarnTextRelocs(false),
fUsingLazyDylibLinking(false), fEncryptable(true),
fOrderData(true), fMarkDeadStrippableDylib(false),
- fMakeClassicDyldInfo(true), fMakeCompressedDyldInfo(true), fAllowCpuSubtypeMismatches(false),
- fUseSimplifiedDylibReExports(false), fObjCABIVersion2POverride(false), fSaveTempFiles(false)
+ fMakeCompressedDyldInfo(true), fMakeCompressedDyldInfoForceOff(false), fNoEHLabels(false),
+ fAllowCpuSubtypeMismatches(false), fUseSimplifiedDylibReExports(false),
+ fObjCABIVersion2Override(false), fObjCABIVersion1Override(false), fCanUseUpwardDylib(false),
+ fFullyLoadArchives(false), fLoadAllObjcObjectsFromArchives(false), fFlatNamespace(false),
+ fLinkingMainExecutable(false), fForFinalLinkedImage(false), fForStatic(false),
+ fForDyld(false), fMakeTentativeDefinitionsReal(false), fWhyLoad(false), fRootSafe(false),
+ fSetuidSafe(false), fImplicitlyLinkPublicDylibs(true), fAddCompactUnwindEncoding(true),
+ fWarnCompactUnwind(false), fRemoveDwarfUnwindIfCompactExists(false),
+ fAutoOrderInitializers(true), fOptimizeZeroFill(true), fLogObjectFiles(false),
+ fLogAllFiles(false), fTraceDylibs(false), fTraceIndirectDylibs(false), fTraceArchives(false),
+ fOutputSlidable(false), fWarnWeakExports(false),
+ fObjcGcCompaction(false), fObjCGc(false), fObjCGcOnly(false),
+ fDemangle(false), fTLVSupport(false),
+#if __MAC_OS_X_VERSION_MIN_REQUIRED < 1070
+ fVersionLoadCommand(false), fFunctionStartsLoadCommand(false),
+#else
+ fVersionLoadCommand(true), fFunctionStartsLoadCommand(true),
+#endif
+ fCanReExportSymbols(false), fObjcCategoryMerging(true),
+ fDebugInfoStripping(kDebugInfoMinimal), fTraceOutputFile(NULL),
+ fMacVersionMin(ld::macVersionUnset), fIPhoneVersionMin(ld::iPhoneVersionUnset),
+ fSaveTempFiles(false)
{
this->checkForClassic(argc, argv);
this->parsePreCommandLineEnvironmentSettings();
{
}
-const ObjectFile::ReaderOptions& Options::readerOptions()
-{
- return fReaderOptions;
-}
-
-
-const char* Options::getOutputFilePath()
-{
- return fOutputFile;
-}
-
-std::vector<Options::FileInfo>& Options::getInputFiles()
-{
- return fInputFiles;
-}
-
-Options::OutputKind Options::outputKind()
-{
- return fOutputKind;
-}
-bool Options::bindAtLoad()
-{
- return fBindAtLoad;
-}
-bool Options::prebind()
-{
- return fPrebind;
-}
-bool Options::fullyLoadArchives()
-{
- return fReaderOptions.fFullyLoadArchives;
-}
-
-Options::NameSpace Options::nameSpace()
-{
- return fNameSpace;
-}
-
-const char* Options::installPath()
+const char* Options::installPath() const
{
if ( fDylibInstallName != NULL )
return fDylibInstallName;
return fOutputFile;
}
-uint32_t Options::currentVersion()
-{
- return fDylibCurrentVersion;
-}
-
-uint32_t Options::compatibilityVersion()
-{
- return fDylibCompatVersion;
-}
-
-const char* Options::entryName()
-{
- return fEntryName;
-}
-
-uint64_t Options::baseAddress()
-{
- return fBaseAddress;
-}
-
-bool Options::keepPrivateExterns()
-{
- return fKeepPrivateExterns;
-}
-bool Options::interposable(const char* name)
+bool Options::interposable(const char* name) const
{
switch ( fInterposeMode ) {
case kInterposeNone:
throw "internal error";
}
-bool Options::needsModuleTable()
-{
- return fNeedsModuleTable;
-}
-
-bool Options::ignoreOtherArchInputFiles()
-{
- return fIgnoreOtherArchFiles;
-}
-
-bool Options::forceCpuSubtypeAll()
-{
- return fForceSubtypeAll;
-}
-
-bool Options::traceDylibs()
-{
- return fReaderOptions.fTraceDylibs;
-}
-
-bool Options::traceArchives()
-{
- return fReaderOptions.fTraceArchives;
-}
-
-Options::UndefinedTreatment Options::undefinedTreatment()
-{
- return fUndefinedTreatment;
-}
-
-Options::WeakReferenceMismatchTreatment Options::weakReferenceMismatchTreatment()
-{
- return fWeakReferenceMismatchTreatment;
-}
-
-const char* Options::umbrellaName()
-{
- return fUmbrellaName;
-}
-
-std::vector<const char*>& Options::allowableClients()
-{
- return fAllowableClients;
-}
-
-const char* Options::clientName()
-{
- return fClientName;
-}
-
-uint64_t Options::zeroPageSize()
-{
- return fZeroPageSize;
-}
-
-bool Options::hasCustomStack()
-{
- return (fStackSize != 0);
-}
-
-uint64_t Options::customStackSize()
-{
- return fStackSize;
-}
-
-uint64_t Options::customStackAddr()
-{
- return fStackAddr;
-}
-bool Options::hasExecutableStack()
-{
- return fExecutableStack;
-}
-std::vector<const char*>& Options::initialUndefines()
-{
- return fInitialUndefines;
-}
-bool Options::printWhyLive(const char* symbolName)
+bool Options::printWhyLive(const char* symbolName) const
{
return ( fWhyLive.find(symbolName) != fWhyLive.end() );
}
-const char* Options::initFunctionName()
-{
- return fInitFunctionName;
-}
-
const char* Options::dotOutputFile()
{
return fDotOutputFile;
}
-bool Options::hasExportRestrictList()
-{
- return (fExportMode != kExportDefault);
-}
-bool Options::hasExportMaskList()
+bool Options::hasWildCardExportRestrictList() const
{
- return (fExportMode == kExportSome);
+ // has -exported_symbols_list which contains some wildcards
+ return ((fExportMode == kExportSome) && fExportSymbols.hasWildCards());
}
-
-bool Options::hasWildCardExportRestrictList()
+bool Options::hasWeakBitTweaks() const
{
// has -exported_symbols_list which contains some wildcards
- return ((fExportMode == kExportSome) && fExportSymbols.hasWildCards());
+ return (!fForceWeakSymbols.empty() || !fForceNotWeakSymbols.empty());
}
-
-bool Options::allGlobalsAreDeadStripRoots()
+bool Options::allGlobalsAreDeadStripRoots() const
{
// -exported_symbols_list means globals are not exported by default
if ( fExportMode == kExportSome )
return false;
}
-uint32_t Options::minimumHeaderPad()
+
+bool Options::keepRelocations()
{
- return fMinimumHeaderPad;
+ return fKeepRelocations;
}
-std::vector<Options::ExtraSection>& Options::extraSections()
+bool Options::warnStabs()
{
- return fExtraSections;
+ return fWarnStabs;
}
-std::vector<Options::SectionAlignment>& Options::sectionAlignments()
+const char* Options::executablePath()
{
- return fSectionAlignments;
+ return fExecutablePath;
}
-Options::CommonsMode Options::commonsMode()
+
+uint32_t Options::initialSegProtection(const char* segName) const
{
- return fCommonsMode;
+ for(std::vector<Options::SegmentProtect>::const_iterator it = fCustomSegmentProtections.begin(); it != fCustomSegmentProtections.end(); ++it) {
+ if ( strcmp(it->name, segName) == 0 ) {
+ return it->init;
+ }
+ }
+ if ( strcmp(segName, "__PAGEZERO") == 0 ) {
+ return 0;
+ }
+ else if ( strcmp(segName, "__TEXT") == 0 ) {
+ return VM_PROT_READ | VM_PROT_EXECUTE;
+ }
+ else if ( strcmp(segName, "__LINKEDIT") == 0 ) {
+ return VM_PROT_READ;
+ }
+
+ // all others default to read-write
+ return VM_PROT_READ | VM_PROT_WRITE;
}
-bool Options::warnCommons()
+uint32_t Options::maxSegProtection(const char* segName) const
{
- return fWarnCommons;
+ // iPhoneOS always uses same protection for max and initial
+ if ( fIPhoneVersionMin != ld::iPhoneVersionUnset )
+ return initialSegProtection(segName);
+
+ for(std::vector<Options::SegmentProtect>::const_iterator it = fCustomSegmentProtections.begin(); it != fCustomSegmentProtections.end(); ++it) {
+ if ( strcmp(it->name, segName) == 0 ) {
+ return it->max;
+ }
+ }
+ if ( strcmp(segName, "__PAGEZERO") == 0 ) {
+ return 0;
+ }
+ // all others default to all
+ return VM_PROT_READ | VM_PROT_WRITE | VM_PROT_EXECUTE;
+}
+
+uint64_t Options::segPageSize(const char* segName) const
+{
+ for(std::vector<SegmentSize>::const_iterator it=fCustomSegmentSizes.begin(); it != fCustomSegmentSizes.end(); ++it) {
+ if ( strcmp(it->name, segName) == 0 )
+ return it->size;
+ }
+ return fSegmentAlignment;
}
-bool Options::keepRelocations()
+uint64_t Options::customSegmentAddress(const char* segName) const
{
- return fKeepRelocations;
+ for(std::vector<SegmentStart>::const_iterator it=fCustomSegmentAddresses.begin(); it != fCustomSegmentAddresses.end(); ++it) {
+ if ( strcmp(it->name, segName) == 0 )
+ return it->address;
+ }
+ // if custom stack in use, model as segment with custom address
+ if ( (fStackSize != 0) && (strcmp("__UNIXSTACK", segName) == 0) )
+ return fStackAddr - fStackSize;
+ return 0;
}
-bool Options::warnStabs()
+bool Options::hasCustomSegmentAddress(const char* segName) const
{
- return fWarnStabs;
+ for(std::vector<SegmentStart>::const_iterator it=fCustomSegmentAddresses.begin(); it != fCustomSegmentAddresses.end(); ++it) {
+ if ( strcmp(it->name, segName) == 0 )
+ return true;
+ }
+ // if custom stack in use, model as segment with custom address
+ if ( (fStackSize != 0) && (strcmp("__UNIXSTACK", segName) == 0) )
+ return true;
+ return false;
}
-const char* Options::executablePath()
+bool Options::hasCustomSectionAlignment(const char* segName, const char* sectName) const
{
- return fExecutablePath;
+ for (std::vector<SectionAlignment>::const_iterator it = fSectionAlignments.begin(); it != fSectionAlignments.end(); ++it) {
+ if ( (strcmp(it->segmentName, segName) == 0) && (strcmp(it->sectionName, sectName) == 0) )
+ return true;
+ }
+ return false;
}
-Options::DeadStripMode Options::deadStrip()
+uint8_t Options::customSectionAlignment(const char* segName, const char* sectName) const
{
- return fDeadStrip;
+ for (std::vector<SectionAlignment>::const_iterator it = fSectionAlignments.begin(); it != fSectionAlignments.end(); ++it) {
+ if ( (strcmp(it->segmentName, segName) == 0) && (strcmp(it->sectionName, sectName) == 0) )
+ return it->alignment;
+ }
+ return 0;
}
+
bool Options::hasExportedSymbolOrder()
{
return (fExportSymbolsOrder.size() > 0);
}
-bool Options::exportedSymbolOrder(const char* sym, unsigned int* order)
+bool Options::exportedSymbolOrder(const char* sym, unsigned int* order) const
{
- NameToOrder::iterator pos = fExportSymbolsOrder.find(sym);
+ NameToOrder::const_iterator pos = fExportSymbolsOrder.find(sym);
if ( pos != fExportSymbolsOrder.end() ) {
*order = pos->second;
return true;
// Note: we do not free() the malloc buffer, because the strings are used by the export-set hash table
}
+bool Options::forceWeak(const char* symbolName) const
+{
+ return fForceWeakSymbols.contains(symbolName);
+}
+
+bool Options::forceNotWeak(const char* symbolName) const
+{
+ return fForceNotWeakSymbols.contains(symbolName);
+}
+
+bool Options::forceWeakNonWildCard(const char* symbolName) const
+{
+ return fForceWeakSymbols.containsNonWildcard(symbolName);
+}
+
+bool Options::forceNotWeakNonWildcard(const char* symbolName) const
+{
+ return fForceNotWeakSymbols.containsNonWildcard(symbolName);
+}
+
-bool Options::shouldExport(const char* symbolName)
+bool Options::shouldExport(const char* symbolName) const
{
switch (fExportMode) {
case kExportSome:
throw "internal error";
}
-bool Options::keepLocalSymbol(const char* symbolName)
+bool Options::shouldReExport(const char* symbolName) const
+{
+ return fReExportSymbols.contains(symbolName);
+}
+
+bool Options::keepLocalSymbol(const char* symbolName) const
{
switch (fLocalSymbolHandling) {
case kLocalSymbolsAll:
throw "internal error";
}
-void Options::parseArch(const char* architecture)
+
+void Options::setArchitecture(cpu_type_t type, cpu_subtype_t subtype)
{
- if ( architecture == NULL )
+ fArchitecture = type;
+ fSubArchitecture = subtype;
+ switch ( type ) {
+ case CPU_TYPE_POWERPC:
+ switch ( subtype ) {
+ case CPU_SUBTYPE_POWERPC_750:
+ fArchitectureName = "ppc750";
+ fHasPreferredSubType = true;
+ break;
+ case CPU_SUBTYPE_POWERPC_7400:
+ fArchitectureName = "ppc7400";
+ fHasPreferredSubType = true;
+ break;
+ case CPU_SUBTYPE_POWERPC_7450:
+ fArchitectureName = "ppc7450";
+ fHasPreferredSubType = true;
+ break;
+ case CPU_SUBTYPE_POWERPC_970:
+ fArchitectureName = "ppc970";
+ fHasPreferredSubType = true;
+ break;
+ case CPU_SUBTYPE_POWERPC_ALL:
+ fArchitectureName = "ppc";
+ fHasPreferredSubType = false;
+ break;
+ default:
+ assert(0 && "unknown ppc subtype");
+ fArchitectureName = "ppc";
+ break;
+ }
+ if ( (fMacVersionMin == ld::macVersionUnset) && (fOutputKind != Options::kObjectFile) ) {
+ #ifdef DEFAULT_MACOSX_MIN_VERSION
+ warning("-macosx_version_min not specificed, assuming " DEFAULT_MACOSX_MIN_VERSION);
+ setMacOSXVersionMin(DEFAULT_MACOSX_MIN_VERSION);
+ #else
+ warning("-macosx_version_min not specificed, assuming 10.6");
+ fMacVersionMin = ld::mac10_6;
+ #endif
+ }
+ break;
+ case CPU_TYPE_POWERPC64:
+ fArchitectureName = "ppc64";
+ if ( (fMacVersionMin == ld::macVersionUnset) && (fOutputKind != Options::kObjectFile) ) {
+ warning("-macosx_version_min not specificed, assuming 10.5");
+ fMacVersionMin = ld::mac10_5;
+ }
+ break;
+ case CPU_TYPE_I386:
+ fArchitectureName = "i386";
+ if ( (fMacVersionMin == ld::macVersionUnset) && (fOutputKind != Options::kObjectFile) ) {
+ #ifdef DEFAULT_MACOSX_MIN_VERSION
+ warning("-macosx_version_min not specificed, assuming " DEFAULT_MACOSX_MIN_VERSION);
+ setMacOSXVersionMin(DEFAULT_MACOSX_MIN_VERSION);
+ #else
+ warning("-macosx_version_min not specificed, assuming 10.6");
+ fMacVersionMin = ld::mac10_6;
+ #endif
+ }
+ if ( !fMakeCompressedDyldInfo && (fMacVersionMin >= ld::mac10_6) && !fMakeCompressedDyldInfoForceOff )
+ fMakeCompressedDyldInfo = true;
+ break;
+ case CPU_TYPE_X86_64:
+ fArchitectureName = "x86_64";
+ if ( (fMacVersionMin == ld::macVersionUnset) && (fOutputKind != Options::kObjectFile) ) {
+ #ifdef DEFAULT_MACOSX_MIN_VERSION
+ warning("-macosx_version_min not specificed, assuming " DEFAULT_MACOSX_MIN_VERSION);
+ setMacOSXVersionMin(DEFAULT_MACOSX_MIN_VERSION);
+ #else
+ warning("-macosx_version_min not specificed, assuming 10.6");
+ fMacVersionMin = ld::mac10_6;
+ #endif
+ }
+ if ( !fMakeCompressedDyldInfo && (fMacVersionMin >= ld::mac10_6) && !fMakeCompressedDyldInfoForceOff )
+ fMakeCompressedDyldInfo = true;
+ break;
+ case CPU_TYPE_ARM:
+ switch ( subtype ) {
+ case CPU_SUBTYPE_ARM_V4T:
+ fArchitectureName = "armv4t";
+ fHasPreferredSubType = true;
+ break;
+ case CPU_SUBTYPE_ARM_V5TEJ:
+ fArchitectureName = "armv5";
+ fHasPreferredSubType = true;
+ break;
+ case CPU_SUBTYPE_ARM_V6:
+ fArchitectureName = "armv6";
+ fHasPreferredSubType = true;
+ break;
+ case CPU_SUBTYPE_ARM_V7:
+ fArchitectureName = "armv7";
+ fHasPreferredSubType = true;
+ break;
+ default:
+ assert(0 && "unknown arm subtype");
+ fArchitectureName = "arm";
+ break;
+ }
+ if ( (fMacVersionMin == ld::macVersionUnset) && (fIPhoneVersionMin == ld::iPhoneVersionUnset) && (fOutputKind != Options::kObjectFile) ) {
+#if defined(DEFAULT_IPHONEOS_MIN_VERSION)
+ warning("-ios_version_min not specificed, assuming " DEFAULT_IPHONEOS_MIN_VERSION);
+ setIPhoneVersionMin(DEFAULT_IPHONEOS_MIN_VERSION);
+#elif defined(DEFAULT_MACOSX_MIN_VERSION)
+ warning("-macosx_version_min not specificed, assuming " DEFAULT_MACOSX_MIN_VERSION);
+ setMacOSXVersionMin(DEFAULT_MACOSX_MIN_VERSION);
+#else
+ warning("-macosx_version_min not specificed, assuming 10.6");
+ fMacVersionMin = ld::mac10_6;
+#endif
+ }
+ if ( !fMakeCompressedDyldInfo && minOS(ld::mac10_6, ld::iPhone3_1) && !fMakeCompressedDyldInfoForceOff )
+ fMakeCompressedDyldInfo = true;
+ break;
+ default:
+ fArchitectureName = "unknown architecture";
+ break;
+ }
+}
+
+void Options::parseArch(const char* arch)
+{
+ if ( arch == NULL )
throw "-arch must be followed by an architecture string";
- if ( strcmp(architecture, "ppc") == 0 ) {
+ fArchitectureName = arch;
+ if ( strcmp(arch, "ppc") == 0 ) {
fArchitecture = CPU_TYPE_POWERPC;
fSubArchitecture = CPU_SUBTYPE_POWERPC_ALL;
}
- else if ( strcmp(architecture, "ppc64") == 0 ) {
+ else if ( strcmp(arch, "ppc64") == 0 ) {
fArchitecture = CPU_TYPE_POWERPC64;
fSubArchitecture = CPU_SUBTYPE_POWERPC_ALL;
}
- else if ( strcmp(architecture, "i386") == 0 ) {
+ else if ( strcmp(arch, "i386") == 0 ) {
fArchitecture = CPU_TYPE_I386;
fSubArchitecture = CPU_SUBTYPE_I386_ALL;
}
- else if ( strcmp(architecture, "x86_64") == 0 ) {
+ else if ( strcmp(arch, "x86_64") == 0 ) {
fArchitecture = CPU_TYPE_X86_64;
fSubArchitecture = CPU_SUBTYPE_X86_64_ALL;
}
- else if ( strcmp(architecture, "arm") == 0 ) {
+ else if ( strcmp(arch, "arm") == 0 ) {
fArchitecture = CPU_TYPE_ARM;
fSubArchitecture = CPU_SUBTYPE_ARM_ALL;
}
// compatibility support for cpu-sub-types
- else if ( strcmp(architecture, "ppc750") == 0 ) {
+ else if ( strcmp(arch, "ppc750") == 0 ) {
fArchitecture = CPU_TYPE_POWERPC;
fSubArchitecture = CPU_SUBTYPE_POWERPC_750;
fHasPreferredSubType = true;
}
- else if ( strcmp(architecture, "ppc7400") == 0 ) {
+ else if ( strcmp(arch, "ppc7400") == 0 ) {
fArchitecture = CPU_TYPE_POWERPC;
fSubArchitecture = CPU_SUBTYPE_POWERPC_7400;
fHasPreferredSubType = true;
}
- else if ( strcmp(architecture, "ppc7450") == 0 ) {
+ else if ( strcmp(arch, "ppc7450") == 0 ) {
fArchitecture = CPU_TYPE_POWERPC;
fSubArchitecture = CPU_SUBTYPE_POWERPC_7450;
fHasPreferredSubType = true;
}
- else if ( strcmp(architecture, "ppc970") == 0 ) {
+ else if ( strcmp(arch, "ppc970") == 0 ) {
fArchitecture = CPU_TYPE_POWERPC;
fSubArchitecture = CPU_SUBTYPE_POWERPC_970;
fHasPreferredSubType = true;
}
- else if ( strcmp(architecture, "armv6") == 0 ) {
+ else if ( strcmp(arch, "armv6") == 0 ) {
fArchitecture = CPU_TYPE_ARM;
fSubArchitecture = CPU_SUBTYPE_ARM_V6;
fHasPreferredSubType = true;
}
- else if ( strcmp(architecture, "armv5") == 0 ) {
+ else if ( strcmp(arch, "armv5") == 0 ) {
fArchitecture = CPU_TYPE_ARM;
fSubArchitecture = CPU_SUBTYPE_ARM_V5TEJ;
fHasPreferredSubType = true;
}
- else if ( strcmp(architecture, "armv4t") == 0 ) {
+ else if ( strcmp(arch, "armv4t") == 0 ) {
fArchitecture = CPU_TYPE_ARM;
fSubArchitecture = CPU_SUBTYPE_ARM_V4T;
fHasPreferredSubType = true;
}
- else if ( strcmp(architecture, "xscale") == 0 ) {
+ else if ( strcmp(arch, "xscale") == 0 ) {
fArchitecture = CPU_TYPE_ARM;
fSubArchitecture = CPU_SUBTYPE_ARM_XSCALE;
fHasPreferredSubType = true;
}
- else if ( strcmp(architecture, "armv7") == 0 ) {
+ else if ( strcmp(arch, "armv7") == 0 ) {
fArchitecture = CPU_TYPE_ARM;
fSubArchitecture = CPU_SUBTYPE_ARM_V7;
fHasPreferredSubType = true;
}
else
- throwf("unknown/unsupported architecture name for: -arch %s", architecture);
+ throwf("unknown/unsupported architecture name for: -arch %s", arch);
}
-bool Options::checkForFile(const char* format, const char* dir, const char* rootName, FileInfo& result)
+bool Options::checkForFile(const char* format, const char* dir, const char* rootName, FileInfo& result) const
{
struct stat statBuffer;
char possiblePath[strlen(dir)+strlen(rootName)+strlen(format)+8];
throwf("framework not found %s", rootName);
}
-Options::FileInfo Options::findFile(const char* path)
+Options::FileInfo Options::findFile(const char* path) const
{
FileInfo result;
struct stat statBuffer;
// if absolute path and not a .o file, the use SDK prefix
if ( (path[0] == '/') && (strcmp(&path[strlen(path)-2], ".o") != 0) ) {
const int pathLen = strlen(path);
- for (std::vector<const char*>::iterator it = fSDKPaths.begin(); it != fSDKPaths.end(); it++) {
+ for (std::vector<const char*>::const_iterator it = fSDKPaths.begin(); it != fSDKPaths.end(); it++) {
// ??? Shouldn't we be using String here?
const char* sdkPathDir = *it;
const int sdkPathDirLen = strlen(sdkPathDir);
throwf("file not found: %s", path);
}
-Options::FileInfo Options::findFileUsingPaths(const char* path)
+Options::FileInfo Options::findFileUsingPaths(const char* path) const
{
FileInfo result;
// don't need to try variations, just paths. We do need to add the additional bits
// onto the framework path though.
if ( isFramework ) {
- for (std::vector<const char*>::iterator it = fFrameworkSearchPaths.begin();
+ for (std::vector<const char*>::const_iterator it = fFrameworkSearchPaths.begin();
it != fFrameworkSearchPaths.end();
it++) {
const char* dir = *it;
&& (strcmp(&leafName[leafLen-6], ".dylib") == 0)
&& (strstr(path, ".framework/") != NULL) );
if ( !embeddedDylib ) {
- for (std::vector<const char*>::iterator it = fLibrarySearchPaths.begin();
+ for (std::vector<const char*>::const_iterator it = fLibrarySearchPaths.begin();
it != fLibrarySearchPaths.end();
it++) {
const char* dir = *it;
}
-void Options::parseSegAddrTable(const char* segAddrPath, const char* installPath)
+void Options::parseSegAddrTable(const char* segAddrPath, const char* installPth)
{
FILE* file = fopen(segAddrPath, "r");
if ( file == NULL ) {
for(char* end = eol-1; (end > p) && isspace(*end); --end)
*end = '\0';
// see if this line is for the dylib being linked
- if ( strcmp(p, installPath) == 0 ) {
+ if ( strcmp(p, installPth) == 0 ) {
fBaseAddress = firstColumAddress;
if ( hasSecondColumn ) {
fBaseWritableAddress = secondColumAddress;
fclose(file);
}
-bool Options::SetWithWildcards::hasWildCards(const char* symbol)
+
+void Options::SetWithWildcards::remove(const NameSet& toBeRemoved)
+{
+ for(NameSet::const_iterator it=toBeRemoved.begin(); it != toBeRemoved.end(); ++it) {
+ const char* symbolName = *it;
+ NameSet::iterator pos = fRegular.find(symbolName);
+ if ( pos != fRegular.end() )
+ fRegular.erase(pos);
+ }
+}
+
+bool Options::SetWithWildcards::hasWildCards(const char* symbol)
{
// an exported symbol name containing *, ?, or [ requires wildcard matching
return ( strpbrk(symbol, "*?[") != NULL );
fRegular.insert(symbol);
}
-bool Options::SetWithWildcards::contains(const char* symbol)
+bool Options::SetWithWildcards::contains(const char* symbol) const
{
// first look at hash table on non-wildcard symbols
if ( fRegular.find(symbol) != fRegular.end() )
return true;
// next walk list of wild card symbols looking for a match
- for(std::vector<const char*>::iterator it = fWildCard.begin(); it != fWildCard.end(); ++it) {
+ for(std::vector<const char*>::const_iterator it = fWildCard.begin(); it != fWildCard.end(); ++it) {
if ( wildCardMatch(*it, symbol) )
return true;
}
return false;
}
+bool Options::SetWithWildcards::containsNonWildcard(const char* symbol) const
+{
+ // look at hash table on non-wildcard symbols
+ return ( fRegular.find(symbol) != fRegular.end() );
+}
+
+
-bool Options::SetWithWildcards::inCharRange(const char*& p, unsigned char c)
+bool Options::SetWithWildcards::inCharRange(const char*& p, unsigned char c) const
{
++p; // find end
const char* b = p;
return false;
}
-bool Options::SetWithWildcards::wildCardMatch(const char* pattern, const char* symbol)
+bool Options::SetWithWildcards::wildCardMatch(const char* pattern, const char* symbol) const
{
const char* s = symbol;
for (const char* p = pattern; *p != '\0'; ++p) {
void Options::loadExportFile(const char* fileOfExports, const char* option, SetWithWildcards& set)
{
+ if ( fileOfExports == NULL )
+ throwf("missing file after %s", option);
// read in whole file
int fd = ::open(fileOfExports, O_RDONLY, 0);
if ( fd == -1 )
::close(fd);
// parse into symbols and add to fAliases
- ObjectFile::ReaderOptions::AliasPair pair;
+ AliasPair pair;
char * const end = &p[stat_buf.st_size+1];
enum { lineStart, inRealName, inBetween, inAliasName, inComment } state = lineStart;
int lineNumber = 1;
*last = '\0';
--last;
}
- fReaderOptions.fAliases.push_back(pair);
+ fAliases.push_back(pair);
state = inComment;
}
else if ( *s == '\n' ) {
*last = '\0';
--last;
}
- fReaderOptions.fAliases.push_back(pair);
+ fAliases.push_back(pair);
state = lineStart;
}
break;
throw "-macosx_version_min argument missing";
if ( (strncmp(version, "10.", 3) == 0) && isdigit(version[3]) ) {
- int num = version[3] - '0';
- switch ( num ) {
- case 0:
- case 1:
- fReaderOptions.fMacVersionMin = ObjectFile::ReaderOptions::k10_1;
- break;
- case 2:
- fReaderOptions.fMacVersionMin = ObjectFile::ReaderOptions::k10_2;
- break;
- case 3:
- fReaderOptions.fMacVersionMin = ObjectFile::ReaderOptions::k10_3;
- break;
- case 4:
- fReaderOptions.fMacVersionMin = ObjectFile::ReaderOptions::k10_4;
- break;
- case 5:
- fReaderOptions.fMacVersionMin = ObjectFile::ReaderOptions::k10_5;
- break;
- case 6:
- fReaderOptions.fMacVersionMin = ObjectFile::ReaderOptions::k10_6;
- break;
- case 7:
- fReaderOptions.fMacVersionMin = ObjectFile::ReaderOptions::k10_7;
- break;
- default:
- fReaderOptions.fMacVersionMin = ObjectFile::ReaderOptions::k10_7;
- break;
- }
+ unsigned int minorVersion = version[3] - '0';
+ fMacVersionMin = (ld::MacVersionMin)(0x000A0000 | (minorVersion << 8));
}
else {
warning("unknown option to -macosx_version_min, not 10.x");
void Options::setIPhoneVersionMin(const char* version)
{
if ( version == NULL )
- throw "-iphoneos_version_min argument missing";
+ throw "-ios_version_min argument missing";
if ( ! isdigit(version[0]) )
- throw "-iphoneos_version_min argument is not a number";
+ throw "-ios_version_min argument is not a number";
if ( version[1] != '.' )
- throw "-iphoneos_version_min argument is missing period as second character";
+ throw "-ios_version_min argument is missing period as second character";
if ( ! isdigit(version[2]) )
- throw "-iphoneos_version_min argument is not a number";
-
- if ( (version[0] == '2') && (version[2] == '0') )
- fReaderOptions.fIPhoneVersionMin = ObjectFile::ReaderOptions::k2_0;
- else if ( (version[0] == '2') && (version[2] == '1') )
- fReaderOptions.fIPhoneVersionMin = ObjectFile::ReaderOptions::k2_1;
- else if ( (version[0] == '2') && (version[2] >= '2') )
- fReaderOptions.fIPhoneVersionMin = ObjectFile::ReaderOptions::k2_2;
- else if ( (version[0] == '3') && (version[2] == '0') )
- fReaderOptions.fIPhoneVersionMin = ObjectFile::ReaderOptions::k3_0;
- else if ( (version[0] == '3') && (version[2] == '1') )
- fReaderOptions.fIPhoneVersionMin = ObjectFile::ReaderOptions::k3_1;
- else if ( (version[0] == '3') && (version[2] >= '2') )
- fReaderOptions.fIPhoneVersionMin = ObjectFile::ReaderOptions::k3_2;
- else if ( (version[0] >= '4') )
- fReaderOptions.fIPhoneVersionMin = ObjectFile::ReaderOptions::k4_0;
- else {
- fReaderOptions.fIPhoneVersionMin = ObjectFile::ReaderOptions::k2_0;
- warning("unknown option to -iphoneos_version_min, not 2.x, 3.x, or 4.x");
- }
+ throw "-ios_version_min argument is not a number";
+
+ unsigned int majorVersion = version[0] - '0';
+ unsigned int minorVersion = version[2] - '0';
+ fIPhoneVersionMin = (ld::IPhoneVersionMin)((majorVersion << 16) | (minorVersion << 8));
}
-bool Options::minOS(ObjectFile::ReaderOptions::MacVersionMin requiredMacMin, ObjectFile::ReaderOptions::IPhoneVersionMin requirediPhoneOSMin)
+bool Options::minOS(ld::MacVersionMin requiredMacMin, ld::IPhoneVersionMin requirediPhoneOSMin)
{
- if ( fReaderOptions.fMacVersionMin != ObjectFile::ReaderOptions::kMinMacVersionUnset ) {
- return ( fReaderOptions.fMacVersionMin >= requiredMacMin );
+ if ( fMacVersionMin != ld::macVersionUnset ) {
+ return ( fMacVersionMin >= requiredMacMin );
}
else {
- return ( fReaderOptions.fIPhoneVersionMin >= requirediPhoneOSMin);
+ return ( fIPhoneVersionMin >= requirediPhoneOSMin);
}
}
void Options::parseOrderFile(const char* path, bool cstring)
{
// order files override auto-ordering
- fReaderOptions.fAutoOrderInitializers = false;
+ fAutoOrderInitializers = false;
// read in whole file
int fd = ::open(path, O_RDONLY, 0);
fprintf (stderr, "[Logging ld64 options]\t%s\n", arg);
if ( (arg[1] == 'L') || (arg[1] == 'F') ) {
+ if (arg[2] == '\0')
+ ++i;
// previously handled by buildSearchPaths()
}
// The one gnu style option we have to keep compatibility
// default
}
else if ( strcmp(arg, "-static") == 0 ) {
- fReaderOptions.fForStatic = true;
- if ( fOutputKind != kObjectFile ) {
+ fForStatic = true;
+ if ( (fOutputKind != kObjectFile) && (fOutputKind != kKextBundle) ) {
fOutputKind = kStaticExecutable;
}
}
else if ( strcmp(arg, "-o") == 0 ) {
fOutputFile = argv[++i];
}
+ else if ( strncmp(arg, "-lazy-l", 7) == 0 ) {
+ FileInfo info = findLibrary(&arg[7], true);
+ info.options.fLazyLoad = true;
+ addLibrary(info);
+ fUsingLazyDylibLinking = true;
+ }
else if ( (arg[1] == 'l') && (strncmp(arg,"-lazy_",6) !=0) ) {
addLibrary(findLibrary(&arg[2]));
}
info.options.fWeakImport = true;
addLibrary(info);
}
- else if ( strncmp(arg, "-lazy-l", 7) == 0 ) {
- FileInfo info = findLibrary(&arg[7], true);
- info.options.fLazyLoad = true;
- addLibrary(info);
- fUsingLazyDylibLinking = true;
- }
// Avoid lazy binding.
- // ??? Deprecate.
else if ( strcmp(arg, "-bind_at_load") == 0 ) {
fBindAtLoad = true;
}
}
// Similar to --whole-archive.
else if ( strcmp(arg, "-all_load") == 0 ) {
- fReaderOptions.fFullyLoadArchives = true;
+ fFullyLoadArchives = true;
}
else if ( strcmp(arg, "-noall_load") == 0) {
warnObsolete(arg);
}
// Similar to -all_load
else if ( strcmp(arg, "-ObjC") == 0 ) {
- fReaderOptions.fLoadAllObjcObjectsFromArchives = true;
+ fLoadAllObjcObjectsFromArchives = true;
}
// Similar to -all_load, but for the following archive only.
else if ( strcmp(arg, "-force_load") == 0 ) {
else if ( strcmp(arg, "-search_paths_first") == 0 ) {
// previously handled by buildSearchPaths()
}
+ else if ( strcmp(arg, "-search_dylibs_first") == 0 ) {
+ // previously handled by buildSearchPaths()
+ }
else if ( strcmp(arg, "-undefined") == 0 ) {
setUndefinedTreatment(argv[++i]);
}
else if ( strcmp(arg, "-allow_stack_execute") == 0 ) {
fExecutableStack = true;
}
+ else if ( strcmp(arg, "-allow_heap_execute") == 0 ) {
+ fDisableNonExecutableHeap = true;
+ }
else if ( strcmp(arg, "-sectalign") == 0 ) {
if ( (argv[i+1]==NULL) || (argv[i+2]==NULL) || (argv[i+3]==NULL) )
throw "-sectalign missing <segment> <section> <file-path>";
else if ( strcmp(arg, "-macosx_version_min") == 0 ) {
setMacOSXVersionMin(argv[++i]);
}
- else if ( strcmp(arg, "-iphoneos_version_min") == 0 ) {
+ else if ( (strcmp(arg, "-iphoneos_version_min") == 0) || (strcmp(arg, "-ios_version_min") == 0) ) {
setIPhoneVersionMin(argv[++i]);
}
else if ( strcmp(arg, "-multiply_defined") == 0 ) {
warnObsolete(arg);
}
else if ( (strcmp(arg, "-why_load") == 0) || (strcmp(arg, "-whyload") == 0) ) {
- fReaderOptions.fWhyLoad = true;
+ fWhyLoad = true;
}
else if ( strcmp(arg, "-why_live") == 0 ) {
const char* name = argv[++i];
else if ( strcmp(arg, "-s") == 0 ) {
warnObsolete(arg);
fLocalSymbolHandling = kLocalSymbolsNone;
- fReaderOptions.fDebugInfoStripping = ObjectFile::ReaderOptions::kDebugInfoNone;
+ fDebugInfoStripping = Options::kDebugInfoNone;
}
else if ( strcmp(arg, "-x") == 0 ) {
fLocalSymbolHandling = kLocalSymbolsNone;
}
else if ( strcmp(arg, "-S") == 0 ) {
- fReaderOptions.fDebugInfoStripping = ObjectFile::ReaderOptions::kDebugInfoNone;
+ fDebugInfoStripping = Options::kDebugInfoNone;
}
else if ( strcmp(arg, "-X") == 0 ) {
warnObsolete(arg);
}
else if ( strcmp(arg, "-Si") == 0 ) {
warnObsolete(arg);
- fReaderOptions.fDebugInfoStripping = ObjectFile::ReaderOptions::kDebugInfoFull;
+ fDebugInfoStripping = Options::kDebugInfoFull;
}
else if ( strcmp(arg, "-b") == 0 ) {
warnObsolete(arg);
}
else if ( strcmp(arg, "-Sn") == 0 ) {
warnObsolete(arg);
- fReaderOptions.fDebugInfoStripping = ObjectFile::ReaderOptions::kDebugInfoFull;
+ fDebugInfoStripping = Options::kDebugInfoFull;
}
else if ( strcmp(arg, "-Sp") == 0 ) {
warnObsolete(arg);
}
else if ( strcmp(arg, "-dead_strip") == 0 ) {
- fDeadStrip = kDeadStripOnPlusUnusedInits;
+ fDeadStrip = true;
}
else if ( strcmp(arg, "-no_dead_strip_inits_and_terms") == 0 ) {
- fDeadStrip = kDeadStripOn;
+ fDeadStrip = true;
}
else if ( strcmp(arg, "-w") == 0 ) {
// previously handled by buildSearchPaths()
fMaxMinimumHeaderPad = true;
}
else if ( strcmp(arg, "-t") == 0 ) {
- fReaderOptions.fLogAllFiles = true;
+ fLogAllFiles = true;
}
else if ( strcmp(arg, "-whatsloaded") == 0 ) {
- fReaderOptions.fLogObjectFiles = true;
+ fLogObjectFiles = true;
}
else if ( strcmp(arg, "-A") == 0 ) {
warnObsolete(arg);
fStatistics = true;
}
else if ( strcmp(arg, "-d") == 0 ) {
- fReaderOptions.fMakeTentativeDefinitionsReal = true;
+ fMakeTentativeDefinitionsReal = true;
}
else if ( strcmp(arg, "-v") == 0 ) {
// previously handled by buildSearchPaths()
fDtraceScriptName = name;
}
else if ( strcmp(arg, "-root_safe") == 0 ) {
- fReaderOptions.fRootSafe = true;
+ fRootSafe = true;
}
else if ( strcmp(arg, "-setuid_safe") == 0 ) {
- fReaderOptions.fSetuidSafe = true;
+ fSetuidSafe = true;
}
else if ( strcmp(arg, "-alias") == 0 ) {
- ObjectFile::ReaderOptions::AliasPair pair;
+ Options::AliasPair pair;
pair.realName = argv[++i];
if ( pair.realName == NULL )
throw "missing argument to -alias";
pair.alias = argv[++i];
if ( pair.alias == NULL )
throw "missing argument to -alias";
- fReaderOptions.fAliases.push_back(pair);
+ fAliases.push_back(pair);
}
else if ( strcmp(arg, "-alias_list") == 0 ) {
parseAliasFile(argv[++i]);
const char* colon = strchr(arg, ':');
if ( colon == NULL )
throwf("unknown option: %s", arg);
- ObjectFile::ReaderOptions::AliasPair pair;
+ Options::AliasPair pair;
char* temp = new char[colon-arg];
strlcpy(temp, &arg[2], colon-arg-1);
pair.realName = &colon[1];
pair.alias = temp;
- fReaderOptions.fAliases.push_back(pair);
+ fAliases.push_back(pair);
}
else if ( strcmp(arg, "-save-temps") == 0 ) {
fSaveTempFiles = true;
}
else if ( strcmp(arg, "-pie") == 0 ) {
fPositionIndependentExecutable = true;
+ fPIEOnCommandLine = true;
}
else if ( strcmp(arg, "-no_pie") == 0 ) {
fDisablePositionIndependentExecutable = true;
info.options.fReExport = true;
addLibrary(info);
}
+ else if ( strncmp(arg, "-upward-l", 9) == 0 ) {
+ FileInfo info = findLibrary(&arg[9], true);
+ info.options.fUpward = true;
+ addLibrary(info);
+ }
+ else if ( strcmp(arg, "-upward_library") == 0 ) {
+ FileInfo info = findFile(argv[++i]);
+ info.options.fUpward = true;
+ addLibrary(info);
+ }
+ else if ( strcmp(arg, "-upward_framework") == 0 ) {
+ FileInfo info = findFramework(argv[++i]);
+ info.options.fUpward = true;
+ addLibrary(info);
+ }
else if ( strcmp(arg, "-dead_strip_dylibs") == 0 ) {
fDeadStripDylibs = true;
}
else if ( strcmp(arg, "-no_implicit_dylibs") == 0 ) {
- fReaderOptions.fImplicitlyLinkPublicDylibs = false;
+ fImplicitlyLinkPublicDylibs = false;
}
else if ( strcmp(arg, "-new_linker") == 0 ) {
// ignore
fEncryptable = false;
}
else if ( strcmp(arg, "-no_compact_unwind") == 0 ) {
- fReaderOptions.fAddCompactUnwindEncoding = false;
+ fAddCompactUnwindEncoding = false;
}
else if ( strcmp(arg, "-mllvm") == 0 ) {
const char* opts = argv[++i];
fLLVMOptions.push_back(opts);
}
else if ( strcmp(arg, "-no_order_inits") == 0 ) {
- fReaderOptions.fAutoOrderInitializers = false;
+ fAutoOrderInitializers = false;
}
else if ( strcmp(arg, "-no_order_data") == 0 ) {
fOrderData = false;
}
else if ( strcmp(arg, "-no_compact_linkedit") == 0 ) {
fMakeCompressedDyldInfo = false;
+ fMakeCompressedDyldInfoForceOff = true;
}
else if ( strcmp(arg, "-no_eh_labels") == 0 ) {
- fReaderOptions.fNoEHLabels = true;
+ fNoEHLabels = true;
}
else if ( strcmp(arg, "-warn_compact_unwind") == 0 ) {
- fReaderOptions.fWarnCompactUnwind = true;
+ fWarnCompactUnwind = true;
}
else if ( strcmp(arg, "-allow_sub_type_mismatches") == 0 ) {
fAllowCpuSubtypeMismatches = true;
}
else if ( strcmp(arg, "-no_zero_fill_sections") == 0 ) {
- fReaderOptions.fOptimizeZeroFill = false;
+ fOptimizeZeroFill = false;
}
else if ( strcmp(arg, "-objc_abi_version") == 0 ) {
const char* version = argv[++i];
if ( version == NULL )
throw "-objc_abi_version missing version number";
- if ( strcmp(version, "2") == 0 )
- fObjCABIVersion2POverride = true;
+ if ( strcmp(version, "2") == 0 ) {
+ fObjCABIVersion1Override = false;
+ fObjCABIVersion2Override = true;
+ }
+ else if ( strcmp(version, "1") == 0 ) {
+ fObjCABIVersion1Override = true;
+ fObjCABIVersion2Override = false;
+ }
else
warning("ignoring unrecognized argument (%s) to -objc_abi_version", version);
}
+ else if ( strcmp(arg, "-warn_weak_exports") == 0 ) {
+ fWarnWeakExports = true;
+ }
+ else if ( strcmp(arg, "-objc_gc_compaction") == 0 ) {
+ fObjcGcCompaction = true;
+ }
+ else if ( strcmp(arg, "-objc_gc") == 0 ) {
+ fObjCGc = true;
+ if ( fObjCGcOnly ) {
+ warning("-objc_gc overriding -objc_gc_only");
+ fObjCGcOnly = false;
+ }
+ }
+ else if ( strcmp(arg, "-objc_gc_only") == 0 ) {
+ fObjCGcOnly = true;
+ if ( fObjCGc ) {
+ warning("-objc_gc_only overriding -objc_gc");
+ fObjCGc = false;
+ }
+ }
else if ( strcmp(arg, "-demangle") == 0 ) {
- // <rdar://problem/8303976> add -demangle noop to ld64-97
+ fDemangle = true;
+ }
+ else if ( strcmp(arg, "-version_load_command") == 0 ) {
+ fVersionLoadCommand = true;
+ }
+ else if ( strcmp(arg, "-no_version_load_command") == 0 ) {
+ fVersionLoadCommand = false;
+ }
+ else if ( strcmp(arg, "-function_starts") == 0 ) {
+ fFunctionStartsLoadCommand = true;
+ }
+ else if ( strcmp(arg, "-no_function_starts") == 0 ) {
+ fFunctionStartsLoadCommand = false;
+ }
+ else if ( strcmp(arg, "-object_path_lto") == 0 ) {
+ fTempLtoObjectPath = argv[++i];
+ if ( fTempLtoObjectPath == NULL )
+ throw "missing argument to -object_path_lto";
+ }
+ else if ( strcmp(arg, "-no_objc_category_merging") == 0 ) {
+ fObjcCategoryMerging = false;
+ }
+ else if ( strcmp(arg, "-force_symbols_weak_list") == 0 ) {
+ loadExportFile(argv[++i], "-force_symbols_weak_list", fForceWeakSymbols);
+ }
+ else if ( strcmp(arg, "-force_symbols_not_weak_list") == 0 ) {
+ loadExportFile(argv[++i], "-force_symbols_not_weak_list", fForceNotWeakSymbols);
+ }
+ else if ( strcmp(arg, "-force_symbol_weak") == 0 ) {
+ const char* symbol = argv[++i];
+ if ( symbol == NULL )
+ throw "-force_symbol_weak missing <symbol>";
+ fForceWeakSymbols.insert(symbol);
+ }
+ else if ( strcmp(arg, "-force_symbol_not_weak") == 0 ) {
+ const char* symbol = argv[++i];
+ if ( symbol == NULL )
+ throw "-force_symbol_not_weak missing <symbol>";
+ fForceNotWeakSymbols.insert(symbol);
+ }
+ else if ( strcmp(arg, "-reexported_symbols_list") == 0 ) {
+ if ( fExportMode == kExportSome )
+ throw "can't use -exported_symbols_list and -reexported_symbols_list";
+ loadExportFile(argv[++i], "-reexported_symbols_list", fReExportSymbols);
+ }
+ else if ( strcmp(arg, "-dyld_env") == 0 ) {
+ const char* envarg = argv[++i];
+ if ( envarg == NULL )
+ throw "-dyld_env missing ENV=VALUE";
+ if ( strchr(envarg, '=') == NULL )
+ throw "-dyld_env missing ENV=VALUE";
+ fDyldEnvironExtras.push_back(envarg);
}
else {
throwf("unknown option: %s", arg);
for(int i=0; i < argc; ++i) {
if ( (argv[i][0] == '-') && (argv[i][1] == 'L') ) {
const char* libSearchDir = &argv[i][2];
+ // Allow either "-L{path}" or "-L {path}".
+ if (argv[i][2] == '\0') {
+ // -L {path}. Make sure there is an argument following this.
+ const char* path = argv[++i];
+ if ( path == NULL )
+ throw "-L missing argument";
+ libSearchDir = path;
+ }
if ( libSearchDir[0] == '\0' )
throw "-L must be immediately followed by a directory path (no space)";
struct stat statbuf;
warning("path '%s' following -L not a directory", libSearchDir);
}
else {
- warning("directory '%s' following -L not found", libSearchDir);
+ warning("directory not found for option '-L%s'", libSearchDir);
}
}
else if ( (argv[i][0] == '-') && (argv[i][1] == 'F') ) {
const char* frameworkSearchDir = &argv[i][2];
+ // Allow either "-F{path}" or "-F {path}".
+ if (argv[i][2] == '\0') {
+ // -F {path}. Make sure there is an argument following this.
+ const char* path = argv[++i];
+ if ( path == NULL )
+ throw "-F missing argument";
+ frameworkSearchDir = path;
+ }
if ( frameworkSearchDir[0] == '\0' )
throw "-F must be immediately followed by a directory path (no space)";
struct stat statbuf;
warning("path '%s' following -F not a directory", frameworkSearchDir);
}
else {
- warning("directory '%s' following -F not found", frameworkSearchDir);
+ warning("directory not found for option '-F%s'", frameworkSearchDir);
}
}
else if ( strcmp(argv[i], "-Z") == 0 )
fprintf(stderr, "%s", ldVersionString);
// if only -v specified, exit cleanly
if ( argc == 2 ) {
-#if LTO_SUPPORT
- printLTOVersion(*this);
-#endif
+ const char* ltoVers = lto::version();
+ if ( ltoVers != NULL )
+ fprintf(stderr, "%s\n", ltoVers);
exit(0);
}
}
fSDKPaths.push_back(path);
}
else if ( strcmp(argv[i], "-search_paths_first") == 0 ) {
- // ??? Deprecate when we get -Bstatic/-Bdynamic.
fLibrarySearchMode = kSearchDylibAndArchiveInEachDir;
}
+ else if ( strcmp(argv[i], "-search_dylibs_first") == 0 ) {
+ fLibrarySearchMode = kSearchAllDirsForDylibsThenAllDirsForArchives;
+ }
else if ( strcmp(argv[i], "-w") == 0 ) {
sEmitWarnings = false;
}
{
if ((getenv("LD_TRACE_ARCHIVES") != NULL)
|| (getenv("RC_TRACE_ARCHIVES") != NULL))
- fReaderOptions.fTraceArchives = true;
+ fTraceArchives = true;
if ((getenv("LD_TRACE_DYLIBS") != NULL)
|| (getenv("RC_TRACE_DYLIBS") != NULL)) {
- fReaderOptions.fTraceDylibs = true;
- fReaderOptions.fTraceIndirectDylibs = true;
+ fTraceDylibs = true;
+ fTraceIndirectDylibs = true;
}
if (getenv("RC_TRACE_DYLIB_SEARCHING") != NULL) {
if (getenv("LD_PRINT_OPTIONS") != NULL)
fPrintOptions = true;
- if (fReaderOptions.fTraceDylibs || fReaderOptions.fTraceArchives)
- fReaderOptions.fTraceOutputFile = getenv("LD_TRACE_FILE");
+ if (fTraceDylibs || fTraceArchives)
+ fTraceOutputFile = getenv("LD_TRACE_FILE");
if (getenv("LD_PRINT_ORDER_FILE_STATISTICS") != NULL)
fPrintOrderFileStatistics = true;
// for now disable compressed linkedit functionality
if ( getenv("LD_NO_COMPACT_LINKEDIT") != NULL ) {
fMakeCompressedDyldInfo = false;
- fMakeClassicDyldInfo = true;
- }
- // temporary until projects adopt -no_pie
- if ( getenv("LD_NO_PIE") != NULL ) {
- warning("LD_NO_PIE being used to disble building a position independent executable");
- fDisablePositionIndependentExecutable = true;
+ fMakeCompressedDyldInfoForceOff = true;
}
sWarningsSideFilePath = getenv("LD_WARN_FILE");
+
+ const char* customDyldPath = getenv("LD_DYLD_PATH");
+ if ( customDyldPath != NULL )
+ fDyldInstallPath = customDyldPath;
}
}
// allow build system to force on dead-code-stripping
- if ( fDeadStrip == kDeadStripOff ) {
+ if ( !fDeadStrip ) {
if ( getenv("LD_DEAD_STRIP") != NULL ) {
switch (fOutputKind) {
case Options::kDynamicLibrary:
case Options::kDynamicExecutable:
case Options::kDynamicBundle:
- fDeadStrip = kDeadStripOn;
+ fDeadStrip = true;
break;
case Options::kPreload:
case Options::kObjectFile:
// sync reader options
switch ( fOutputKind ) {
case Options::kObjectFile:
- fReaderOptions.fForFinalLinkedImage = false;
+ fForFinalLinkedImage = false;
break;
case Options::kDyld:
- fReaderOptions.fForDyld = true;
- fReaderOptions.fForFinalLinkedImage = true;
- fReaderOptions.fNoEHLabels = true;
+ fForDyld = true;
+ fForFinalLinkedImage = true;
+ fNoEHLabels = true;
break;
case Options::kDynamicLibrary:
case Options::kDynamicBundle:
case Options::kKextBundle:
- fReaderOptions.fForFinalLinkedImage = true;
- fReaderOptions.fNoEHLabels = true;
+ fForFinalLinkedImage = true;
+ fNoEHLabels = true;
break;
case Options::kDynamicExecutable:
case Options::kStaticExecutable:
case Options::kPreload:
- fReaderOptions.fLinkingMainExecutable = true;
- fReaderOptions.fForFinalLinkedImage = true;
- fReaderOptions.fNoEHLabels = true;
+ fLinkingMainExecutable = true;
+ fForFinalLinkedImage = true;
+ fNoEHLabels = true;
break;
}
// set default min OS version
- if ( (fReaderOptions.fMacVersionMin == ObjectFile::ReaderOptions::kMinMacVersionUnset)
- && (fReaderOptions.fIPhoneVersionMin == ObjectFile::ReaderOptions::kMinIPhoneVersionUnset) ) {
+ if ( (fMacVersionMin == ld::macVersionUnset)
+ && (fIPhoneVersionMin == ld::iPhoneVersionUnset) ) {
// if neither -macosx_version_min nor -iphoneos_version_min used, try environment variables
const char* macVers = getenv("MACOSX_DEPLOYMENT_TARGET");
const char* iPhoneVers = getenv("IPHONEOS_DEPLOYMENT_TARGET");
+ const char* iOSVers = getenv("IOS_DEPLOYMENT_TARGET");
if ( macVers != NULL )
setMacOSXVersionMin(macVers);
else if ( iPhoneVers != NULL )
setIPhoneVersionMin(iPhoneVers);
+ else if ( iOSVers != NULL )
+ setIPhoneVersionMin(iOSVers);
else {
// if still nothing, set default based on architecture
switch ( fArchitecture ) {
case CPU_TYPE_I386:
case CPU_TYPE_X86_64:
case CPU_TYPE_POWERPC:
- fReaderOptions.fMacVersionMin = ObjectFile::ReaderOptions::k10_6; // FIX FIX, this really should be a check of the OS version the linker is running o
+ if ( (fOutputKind != Options::kObjectFile) && (fOutputKind != Options::kPreload) ) {
+ #ifdef DEFAULT_MACOSX_MIN_VERSION
+ warning("-macosx_version_min not specificed, assuming " DEFAULT_MACOSX_MIN_VERSION);
+ setMacOSXVersionMin(DEFAULT_MACOSX_MIN_VERSION);
+ #else
+ warning("-macosx_version_min not specificed, assuming 10.6");
+ fMacVersionMin = ld::mac10_6;
+ #endif
+ }
break;
case CPU_TYPE_ARM:
- fReaderOptions.fIPhoneVersionMin = ObjectFile::ReaderOptions::k2_0;
+ if ( (fOutputKind != Options::kObjectFile) && (fOutputKind != Options::kPreload) ) {
+ #if defined(DEFAULT_IPHONEOS_MIN_VERSION)
+ warning("-ios_version_min not specificed, assuming " DEFAULT_IPHONEOS_MIN_VERSION);
+ setIPhoneVersionMin(DEFAULT_IPHONEOS_MIN_VERSION);
+ #elif defined(DEFAULT_MACOSX_MIN_VERSION)
+ warning("-macosx_version_min not specificed, assuming " DEFAULT_MACOSX_MIN_VERSION);
+ setMacOSXVersionMin(DEFAULT_MACOSX_MIN_VERSION);
+ #else
+ warning("-macosx_version_min not specificed, assuming 10.6");
+ fMacVersionMin = ld::mac10_6;
+ #endif
+ }
+ break;
+ default:
+ // architecture will be infered ;ater by examining .o files
break;
}
}
// adjust min based on architecture
switch ( fArchitecture ) {
case CPU_TYPE_I386:
- if ( fReaderOptions.fMacVersionMin < ObjectFile::ReaderOptions::k10_4 ) {
+ if ( (fMacVersionMin < ld::mac10_4) && (fIPhoneVersionMin == ld::iPhoneVersionUnset) ) {
//warning("-macosx_version_min should be 10.4 or later for i386");
- fReaderOptions.fMacVersionMin = ObjectFile::ReaderOptions::k10_4;
+ fMacVersionMin = ld::mac10_4;
}
break;
case CPU_TYPE_POWERPC64:
- if ( fReaderOptions.fMacVersionMin < ObjectFile::ReaderOptions::k10_4 ) {
+ if ( fMacVersionMin < ld::mac10_4 ) {
//warning("-macosx_version_min should be 10.4 or later for ppc64");
- fReaderOptions.fMacVersionMin = ObjectFile::ReaderOptions::k10_4;
+ fMacVersionMin = ld::mac10_4;
}
break;
case CPU_TYPE_X86_64:
- if ( fReaderOptions.fMacVersionMin < ObjectFile::ReaderOptions::k10_4 ) {
+ if ( fMacVersionMin < ld::mac10_4 ) {
//warning("-macosx_version_min should be 10.4 or later for x86_64");
- fReaderOptions.fMacVersionMin = ObjectFile::ReaderOptions::k10_4;
+ fMacVersionMin = ld::mac10_4;
}
break;
}
switch ( fArchitecture ) {
case CPU_TYPE_X86_64:
// x86_64 uses new MH_KEXT_BUNDLE type
- fMakeClassicDyldInfo = true;
fMakeCompressedDyldInfo = false;
+ fMakeCompressedDyldInfoForceOff = true;
fAllowTextRelocs = true;
fUndefinedTreatment = kUndefinedDynamicLookup;
break;
// disable implicit dylibs when targeting 10.3
// <rdar://problem/5451987> add option to disable implicit load commands for indirectly used public dylibs
- if ( !minOS(ObjectFile::ReaderOptions::k10_4, ObjectFile::ReaderOptions::k2_0) )
- fReaderOptions.fImplicitlyLinkPublicDylibs = false;
+ if ( !minOS(ld::mac10_4, ld::iPhone2_0) )
+ fImplicitlyLinkPublicDylibs = false;
// allow build system to force linker to ignore -prebind
}
}
+ // set too-large size
+ switch ( fArchitecture ) {
+ case CPU_TYPE_POWERPC:
+ case CPU_TYPE_I386:
+ fMaxAddress = 0xFFFFFFFF;
+ break;
+ case CPU_TYPE_POWERPC64:
+ case CPU_TYPE_X86_64:
+ break;
+ case CPU_TYPE_ARM:
+ switch ( fOutputKind ) {
+ case Options::kDynamicExecutable:
+ case Options::kDynamicLibrary:
+ case Options::kDynamicBundle:
+ // user land code is limited to low 1GB
+ fMaxAddress = 0x2FFFFFFF;
+ break;
+ case Options::kStaticExecutable:
+ case Options::kObjectFile:
+ case Options::kDyld:
+ case Options::kPreload:
+ case Options::kKextBundle:
+ fMaxAddress = 0xFFFFFFFF;
+ break;
+ }
+ // range check -seg1addr for ARM
+ if ( fBaseAddress > fMaxAddress ) {
+ warning("ignoring -seg1addr 0x%08llX. Address out of range.", fBaseAddress);
+ fBaseAddress = 0;
+ }
+ break;
+ }
+
// <rdar://problem/6138961> -r implies no prebinding for all architectures
if ( fOutputKind == Options::kObjectFile )
fPrebind = false;
switch ( fArchitecture ) {
case CPU_TYPE_POWERPC:
case CPU_TYPE_I386:
- if ( fReaderOptions.fMacVersionMin == ObjectFile::ReaderOptions::k10_4 ) {
+ if ( fMacVersionMin == ld::mac10_4 ) {
// in 10.4 only split seg dylibs are prebound
if ( (fOutputKind != Options::kDynamicLibrary) || ! fSplitSegs )
fPrebind = false;
}
- else if ( fReaderOptions.fMacVersionMin >= ObjectFile::ReaderOptions::k10_5 ) {
+ else if ( fMacVersionMin >= ld::mac10_5 ) {
// in 10.5 nothing is prebound
fPrebind = false;
}
// determine if info for shared region should be added
if ( fOutputKind == Options::kDynamicLibrary ) {
- if ( minOS(ObjectFile::ReaderOptions::k10_5, ObjectFile::ReaderOptions::k3_1) )
+ if ( minOS(ld::mac10_5, ld::iPhone3_1) )
if ( !fPrebind )
if ( (strncmp(this->installPath(), "/usr/lib/", 9) == 0)
|| (strncmp(this->installPath(), "/System/Library/", 16) == 0) )
switch ( fArchitecture ) {
case CPU_TYPE_POWERPC: // 10.3 and earlier dyld requires a module table
case CPU_TYPE_I386: // ld_classic for 10.4.x requires a module table
- if ( fReaderOptions.fMacVersionMin <= ObjectFile::ReaderOptions::k10_5 )
+ if ( fMacVersionMin <= ld::mac10_5 )
fNeedsModuleTable = true;
break;
case CPU_TYPE_ARM:
// <rdar://problem/5366363> -r -x implies -S
if ( (fOutputKind == Options::kObjectFile) && (fLocalSymbolHandling == kLocalSymbolsNone) )
- fReaderOptions.fDebugInfoStripping = ObjectFile::ReaderOptions::kDebugInfoNone;
+ fDebugInfoStripping = Options::kDebugInfoNone;
// choose how to process unwind info
switch ( fArchitecture ) {
case Options::kStaticExecutable:
case Options::kPreload:
case Options::kKextBundle:
- fReaderOptions.fAddCompactUnwindEncoding = false;
+ fAddCompactUnwindEncoding = false;
break;
case Options::kDyld:
case Options::kDynamicLibrary:
case Options::kDynamicBundle:
case Options::kDynamicExecutable:
- //if ( fReaderOptions.fAddCompactUnwindEncoding && (fReaderOptions.fVersionMin >= ObjectFile::ReaderOptions::k10_6) )
- // fReaderOptions.fRemoveDwarfUnwindIfCompactExists = true;
+ //if ( fAddCompactUnwindEncoding && (fVersionMin >= ld::mac10_6) )
+ // fRemoveDwarfUnwindIfCompactExists = true;
break;
}
break;
case CPU_TYPE_POWERPC:
case CPU_TYPE_POWERPC64:
case CPU_TYPE_ARM:
- fReaderOptions.fAddCompactUnwindEncoding = false;
- fReaderOptions.fRemoveDwarfUnwindIfCompactExists = false;
+ fAddCompactUnwindEncoding = false;
+ fRemoveDwarfUnwindIfCompactExists = false;
break;
case 0:
// if -arch is missing, assume we don't want compact unwind info
- fReaderOptions.fAddCompactUnwindEncoding = false;
+ fAddCompactUnwindEncoding = false;
break;
}
// don't move inits in dyld because dyld wants certain
// entries point at stable locations at the start of __text
if ( fOutputKind == Options::kDyld )
- fReaderOptions.fAutoOrderInitializers = false;
+ fAutoOrderInitializers = false;
// disable __data ordering for some output kinds
break;
}
+ // only use compressed LINKEDIT for final linked images
+ switch ( fOutputKind ) {
+ case Options::kDynamicExecutable:
+ case Options::kDynamicLibrary:
+ case Options::kDynamicBundle:
+ break;
+ case Options::kPreload:
+ case Options::kStaticExecutable:
+ case Options::kObjectFile:
+ case Options::kDyld:
+ case Options::kKextBundle:
+ fMakeCompressedDyldInfoForceOff = true;
+ break;
+ }
+ if ( fMakeCompressedDyldInfoForceOff )
+ fMakeCompressedDyldInfo = false;
+
+
// only use compressed LINKEDIT for:
// x86_64 and i386 on Mac OS X 10.6 or later
// arm on iPhoneOS 3.1 or later
switch (fArchitecture) {
case CPU_TYPE_I386:
case CPU_TYPE_X86_64:
- if ( fReaderOptions.fMacVersionMin >= ObjectFile::ReaderOptions::k10_6 )
- fMakeClassicDyldInfo = false;
- else if ( fReaderOptions.fMacVersionMin < ObjectFile::ReaderOptions::k10_5 )
+ if ( fMacVersionMin < ld::mac10_6 )
fMakeCompressedDyldInfo = false;
break;
case CPU_TYPE_ARM:
- if ( fReaderOptions.fIPhoneVersionMin >= ObjectFile::ReaderOptions::k3_1 )
- fMakeClassicDyldInfo = false;
- else if ( fReaderOptions.fIPhoneVersionMin < ObjectFile::ReaderOptions::k3_1 )
+ if ( !minOS(ld::mac10_6, ld::iPhone3_1) )
fMakeCompressedDyldInfo = false;
break;
case CPU_TYPE_POWERPC:
fMakeCompressedDyldInfo = false;
}
}
-
- // only use compressed LINKEDIT for final linked images
- if ( fMakeCompressedDyldInfo ) {
- switch ( fOutputKind ) {
- case Options::kDynamicExecutable:
- case Options::kDynamicLibrary:
- case Options::kDynamicBundle:
- break;
- case Options::kPreload:
- case Options::kStaticExecutable:
- case Options::kObjectFile:
- case Options::kDyld:
- case Options::kKextBundle:
- fMakeCompressedDyldInfo = false;
- break;
- }
- }
- fReaderOptions.fMakeCompressedDyldInfo = fMakeCompressedDyldInfo;
// only ARM enforces that cpu-sub-types must match
if ( fArchitecture != CPU_TYPE_ARM )
// only final linked images can not optimize zero fill sections
if ( fOutputKind == Options::kObjectFile )
- fReaderOptions.fOptimizeZeroFill = true;
+ fOptimizeZeroFill = true;
+
+ // all undefines in -r mode
+// if ( fOutputKind == Options::kObjectFile )
+// fUndefinedTreatment = kUndefinedSuppress;
// only dynamic final linked images should warn about use of commmons
if ( fWarnCommons ) {
}
// Mac OS X 10.5 and iPhoneOS 2.0 support LC_REEXPORT_DYLIB
- if ( minOS(ObjectFile::ReaderOptions::k10_5, ObjectFile::ReaderOptions::k2_0) )
+ if ( minOS(ld::mac10_5, ld::iPhone2_0) )
fUseSimplifiedDylibReExports = true;
+
+ // Mac OS X 10.7 and iOS 4.2 support LC_LOAD_UPWARD_DYLIB
+ if ( minOS(ld::mac10_7, ld::iPhone4_2) && (fOutputKind == kDynamicLibrary) )
+ fCanUseUpwardDylib = true;
// x86_64 for MacOSX 10.7 defaults to PIE
- if ( (fArchitecture == CPU_TYPE_X86_64) && (fOutputKind == kDynamicExecutable)
- && (fReaderOptions.fMacVersionMin >= ObjectFile::ReaderOptions::k10_7) ) {
+ if ( (fArchitecture == CPU_TYPE_X86_64) && (fOutputKind == kDynamicExecutable) && (fMacVersionMin >= ld::mac10_7) ) {
fPositionIndependentExecutable = true;
}
+
+ // armv7 for iOS4.3 defaults to PIE
+ if ( (fArchitecture == CPU_TYPE_ARM)
+ && (fSubArchitecture == CPU_SUBTYPE_ARM_V7)
+ && (fOutputKind == kDynamicExecutable)
+ && (fIPhoneVersionMin >= ld::iPhone4_3) ) {
+ fPositionIndependentExecutable = true;
+ }
+
+ // -no_pie anywhere on command line disable PIE
+ if ( fDisablePositionIndependentExecutable )
+ fPositionIndependentExecutable = false;
+
+ // set fOutputSlidable
+ switch ( fOutputKind ) {
+ case Options::kObjectFile:
+ case Options::kStaticExecutable:
+ fOutputSlidable = false;
+ break;
+ case Options::kDynamicExecutable:
+ fOutputSlidable = fPositionIndependentExecutable;
+ break;
+ case Options::kPreload:
+ fOutputSlidable = fPIEOnCommandLine;
+ break;
+ case Options::kDyld:
+ case Options::kDynamicLibrary:
+ case Options::kDynamicBundle:
+ case Options::kKextBundle:
+ fOutputSlidable = true;
+ break;
+ }
+
+ // let linker know if thread local variables are supported
+ if ( fMacVersionMin >= ld::mac10_7 ) {
+ fTLVSupport = true;
+ }
+
+ // version load command is only in some kinds of output files
+ switch ( fOutputKind ) {
+ case Options::kObjectFile:
+ case Options::kStaticExecutable:
+ case Options::kPreload:
+ case Options::kKextBundle:
+ fVersionLoadCommand = false;
+ fFunctionStartsLoadCommand = false;
+ break;
+ case Options::kDynamicExecutable:
+ case Options::kDyld:
+ case Options::kDynamicLibrary:
+ case Options::kDynamicBundle:
+ break;
+ }
+
+ // support re-export of individual symbols in MacOSX 10.7 and iOS 4.2
+ if ( (fOutputKind == kDynamicLibrary) && minOS(ld::mac10_7, ld::iPhone4_2) )
+ fCanReExportSymbols = true;
+
+ // ObjC optimization is only in dynamic final linked images
+ switch ( fOutputKind ) {
+ case Options::kObjectFile:
+ case Options::kStaticExecutable:
+ case Options::kPreload:
+ case Options::kKextBundle:
+ case Options::kDyld:
+ fObjcCategoryMerging = false;
+ break;
+ case Options::kDynamicExecutable:
+ case Options::kDynamicLibrary:
+ case Options::kDynamicBundle:
+ break;
+ }
+
+ // i386 main executables linked on Mac OS X 10.7 default to NX heap
+ // regardless of target unless overriden with -allow_heap_execute anywhere
+ // on the command line
+ if ( (fArchitecture == CPU_TYPE_I386) && (fOutputKind == kDynamicExecutable) && !fDisableNonExecutableHeap)
+ fNonExecutableHeap = true;
}
void Options::checkIllegalOptionCombinations()
// sync reader options
if ( fNameSpace != kTwoLevelNameSpace )
- fReaderOptions.fFlatNamespace = true;
+ fFlatNamespace = true;
// check -stack_addr
if ( fStackAddr != 0 ) {
case Options::kKextBundle:
throw "-stack_size option can only be used when linking a main executable";
}
+ if ( fStackSize > fStackAddr )
+ throwf("-stack_size (0x%08llX) must be smaller than -stack_addr (0x%08llX)", fStackSize, fStackAddr);
}
// check that -allow_stack_execute is only used with main executables
}
}
+ // check that -allow_heap_execute is only used with i386 main executables
+ if ( fDisableNonExecutableHeap ) {
+ if ( fArchitecture != CPU_TYPE_I386 )
+ throw "-allow_heap_execute option can only be used when linking for i386";
+ switch ( fOutputKind ) {
+ case Options::kDynamicExecutable:
+ // -allow_heap_execute only legal when building main executable
+ break;
+ case Options::kStaticExecutable:
+ case Options::kDynamicLibrary:
+ case Options::kDynamicBundle:
+ case Options::kObjectFile:
+ case Options::kDyld:
+ case Options::kPreload:
+ case Options::kKextBundle:
+ throw "-allow_heap_execute option can only be used when linking a main executable";
+ }
+ }
+
// check -client_name is only used when making a bundle or main executable
if ( fClientName != NULL ) {
switch ( fOutputKind ) {
throw "-dtrace can only be used when creating final linked images";
// check -d can only be used with -r
- if ( fReaderOptions.fMakeTentativeDefinitionsReal && (fOutputKind != Options::kObjectFile) )
+ if ( fMakeTentativeDefinitionsReal && (fOutputKind != Options::kObjectFile) )
throw "-d can only be used with -r";
// check that -root_safe is not used with -r
- if ( fReaderOptions.fRootSafe && (fOutputKind == Options::kObjectFile) )
+ if ( fRootSafe && (fOutputKind == Options::kObjectFile) )
throw "-root_safe cannot be used with -r";
// check that -setuid_safe is not used with -r
- if ( fReaderOptions.fSetuidSafe && (fOutputKind == Options::kObjectFile) )
+ if ( fSetuidSafe && (fOutputKind == Options::kObjectFile) )
throw "-setuid_safe cannot be used with -r";
+ // rdar://problem/4718189 map ObjC class names to new runtime names
+ bool alterObjC1ClassNamesToObjC2 = false;
+ switch (fArchitecture) {
+ case CPU_TYPE_I386:
+ // i386 only uses new symbols when using objc2 ABI
+ if ( fObjCABIVersion2Override )
+ alterObjC1ClassNamesToObjC2 = true;
+ break;
+ case CPU_TYPE_POWERPC64:
+ case CPU_TYPE_X86_64:
+ case CPU_TYPE_ARM:
+ alterObjC1ClassNamesToObjC2 = true;
+ break;
+ }
+
// make sure all required exported symbols exist
std::vector<const char*> impliedExports;
- for (NameSet::iterator it=fExportSymbols.regularBegin(); it != fExportSymbols.regularEnd(); it++) {
+ for (NameSet::iterator it=fExportSymbols.regularBegin(); it != fExportSymbols.regularEnd(); ++it) {
const char* name = *it;
- // never export .eh symbols
const int len = strlen(name);
- if ( (strcmp(&name[len-3], ".eh") == 0) || (strncmp(name, ".objc_category_name_", 20) == 0) )
+ if ( (strcmp(&name[len-3], ".eh") == 0) || (strncmp(name, ".objc_category_name_", 20) == 0) ) {
+ // never export .eh symbols
warning("ignoring %s in export list", name);
- else
+ }
+ else if ( (fArchitecture == CPU_TYPE_I386) && !fObjCABIVersion2Override && (strncmp(name, "_OBJC_CLASS_$", 13) == 0) ) {
+ warning("ignoring Objc2 Class symbol %s in i386 export list", name);
+ fRemovedExports.insert(name);
+ }
+ else if ( alterObjC1ClassNamesToObjC2 && (strncmp(name, ".objc_class_name_", 17) == 0) ) {
+ // linking ObjC2 ABI, but have ObjC1 ABI name in export list. Change it to intended name
+ fRemovedExports.insert(name);
+ char* temp;
+ asprintf(&temp, "_OBJC_CLASS_$_%s", &name[17]);
+ impliedExports.push_back(temp);
+ asprintf(&temp, "_OBJC_METACLASS_$_%s", &name[17]);
+ impliedExports.push_back(temp);
+ }
+ else {
fInitialUndefines.push_back(name);
- if ( strncmp(name, ".objc_class_name_", 17) == 0 ) {
- // rdar://problem/4718189 map ObjC class names to new runtime names
- switch (fArchitecture) {
- case CPU_TYPE_I386:
- // i386 only uses new symbols when using objc2 ABI
- if ( !fObjCABIVersion2POverride )
- break;
- // when using objc2 ABI to same as archs below
- case CPU_TYPE_POWERPC64:
- case CPU_TYPE_X86_64:
- case CPU_TYPE_ARM:
- char* temp;
- asprintf(&temp, "_OBJC_CLASS_$_%s", &name[17]);
- impliedExports.push_back(temp);
- asprintf(&temp, "_OBJC_METACLASS_$_%s", &name[17]);
- impliedExports.push_back(temp);
- break;
- }
}
}
- for (std::vector<const char*>::iterator it=impliedExports.begin(); it != impliedExports.end(); it++) {
+ fExportSymbols.remove(fRemovedExports);
+ for (std::vector<const char*>::iterator it=impliedExports.begin(); it != impliedExports.end(); ++it) {
const char* name = *it;
fExportSymbols.insert(name);
fInitialUndefines.push_back(name);
}
+ // make sure all required re-exported symbols exist
+ for (NameSet::iterator it=fReExportSymbols.regularBegin(); it != fReExportSymbols.regularEnd(); ++it) {
+ fInitialUndefines.push_back(*it);
+ }
+
// make sure that -init symbol exist
if ( fInitFunctionName != NULL )
fInitialUndefines.push_back(fInitFunctionName);
+ // make sure every alias base exists
+ for (std::vector<AliasPair>::iterator it=fAliases.begin(); it != fAliases.end(); ++it) {
+ fInitialUndefines.push_back(it->realName);
+ }
+
// check custom segments
if ( fCustomSegmentAddresses.size() != 0 ) {
// verify no segment is in zero page
if ( fZeroPageSize != ULLONG_MAX ) {
for (std::vector<SegmentStart>::iterator it = fCustomSegmentAddresses.begin(); it != fCustomSegmentAddresses.end(); ++it) {
- if ( (it->address >= 0) && (it->address < fZeroPageSize) )
+ if ( it->address < fZeroPageSize )
throwf("-segaddr %s 0x%llX conflicts with -pagezero_size", it->name, it->address);
}
}
break;
case CPU_TYPE_POWERPC64:
// first 4GB for ppc64 on 10.5
- if ( fReaderOptions.fMacVersionMin >= ObjectFile::ReaderOptions::k10_5 )
+ if ( fMacVersionMin >= ld::mac10_5 )
fZeroPageSize = 0x100000000ULL;
else
fZeroPageSize = 0x1000; // 10.4 dyld may not be able to handle >4GB zero page
}
}
+ // if main executable with custom base address, model zero page as custom segment
+ if ( (fOutputKind == Options::kDynamicExecutable) && (fBaseAddress != 0) && (fZeroPageSize != 0) ) {
+ SegmentStart seg;
+ seg.name = "__PAGEZERO";
+ seg.address = 0;;
+ fCustomSegmentAddresses.push_back(seg);
+ }
+
// -dead_strip and -r are incompatible
- if ( (fDeadStrip != kDeadStripOff) && (fOutputKind == Options::kObjectFile) )
+ if ( fDeadStrip && (fOutputKind == Options::kObjectFile) )
throw "-r and -dead_strip cannot be used together";
// can't use -rpath unless targeting 10.5 or later
if ( fRPaths.size() > 0 ) {
- if ( !minOS(ObjectFile::ReaderOptions::k10_5, ObjectFile::ReaderOptions::k2_0) )
+ if ( !minOS(ld::mac10_5, ld::iPhone2_0) )
throw "-rpath can only be used when targeting Mac OS X 10.5 or later";
switch ( fOutputKind ) {
case Options::kDynamicExecutable:
if ( fPositionIndependentExecutable ) {
switch ( fOutputKind ) {
case Options::kDynamicExecutable:
- // -no_pie anywhere on command line disable PIE
- if ( fDisablePositionIndependentExecutable )
- fPositionIndependentExecutable = false;
+ if ( !minOS(ld::mac10_5, ld::iPhone4_2) ) {
+ if ( fIPhoneVersionMin == ld::iPhoneVersionUnset )
+ throw "-pie can only be used when targeting Mac OS X 10.5 or later";
+ else
+ throw "-pie can only be used when targeting iOS 4.2 or later";
+ }
break;
case Options::kPreload:
break;
case Options::kDynamicLibrary:
case Options::kDynamicBundle:
warning("-pie being ignored. It is only used when linking a main executable");
+ fPositionIndependentExecutable = false;
break;
case Options::kStaticExecutable:
case Options::kObjectFile:
case Options::kKextBundle:
throw "-pie can only be used when linking a main executable";
}
- if ( !minOS(ObjectFile::ReaderOptions::k10_5, ObjectFile::ReaderOptions::k2_0) )
- throw "-pie can only be used when targeting Mac OS X 10.5 or later";
}
// check -read_only_relocs is not used with x86_64
warning("-force_cpusubtype_ALL will become unsupported for ARM architectures");
}
}
+
+ // -reexported_symbols_list can only be used with -dynamiclib
+ if ( !fReExportSymbols.empty() ) {
+ if ( fOutputKind != Options::kDynamicLibrary )
+ throw "-reexported_symbols_list can only used used when created dynamic libraries";
+ if ( !minOS(ld::mac10_7, ld::iPhone4_2) )
+ throw "targeted OS version does not support -reexported_symbols_list";
+ }
+
+ // -dyld_env can only be used with main executables
+ if ( (fOutputKind != Options::kDynamicExecutable) && (fDyldEnvironExtras.size() != 0) )
+ throw "-dyld_env can only used used when created main executables";
}
bool newLinker = false;
// build command line buffer in case ld crashes
+ const char* srcRoot = getenv("SRCROOT");
+ if ( srcRoot != NULL ) {
+ strlcpy(crashreporterBuffer, "SRCROOT=", crashreporterBufferSize);
+ strlcat(crashreporterBuffer, srcRoot, crashreporterBufferSize);
+ strlcat(crashreporterBuffer, "\n", crashreporterBufferSize);
+ }
+#ifdef LD_VERS
+ strlcat(crashreporterBuffer, LD_VERS, crashreporterBufferSize);
+ strlcat(crashreporterBuffer, "\n", crashreporterBufferSize);
+#endif
+ strlcat(crashreporterBuffer, "ld ", crashreporterBufferSize);
for(int i=1; i < argc; ++i) {
- strlcat(crashreporterBuffer, argv[i], 1000);
- strlcat(crashreporterBuffer, " ", 1000);
+ strlcat(crashreporterBuffer, argv[i], crashreporterBufferSize);
+ strlcat(crashreporterBuffer, " ", crashreporterBufferSize);
}
for(int i=0; i < argc; ++i) {
}
}
}
-
+
// -dtrace only supported by new linker
if( dtraceFound )
return;
if( archFound ) {
switch ( fArchitecture ) {
- case CPU_TYPE_POWERPC:
case CPU_TYPE_I386:
- case CPU_TYPE_ARM:
-// if ( staticFound && (rFound || !creatingMachKernel) ) {
+ case CPU_TYPE_POWERPC:
+ case CPU_TYPE_ARM:
if ( (staticFound || kextFound) && !newLinker ) {
// this environment variable will disable use of ld_classic for -static links
if ( getenv("LD_NO_CLASSIC_LINKER_STATIC") == NULL ) {
// ld_classic does not support -iphoneos_version_min, so change
for(int j=0; j < argc; ++j) {
- if ( strcmp(argv[j], "-iphoneos_version_min") == 0) {
+ if ( (strcmp(argv[j], "-iphoneos_version_min") == 0) || (strcmp(argv[j], "-ios_version_min") == 0) ) {
argv[j] = "-macosx_version_min";
if ( j < argc-1 )
argv[j+1] = "10.5";
argv[j] = "-static";
}
}
+ // ld classic does not understand -demangle
+ for(int j=0; j < argc; ++j) {
+ if ( strcmp(argv[j], "-demangle") == 0)
+ argv[j] = "-noprebind";
+ }
this->gotoClassicLinker(argc, argv);
}
}
void Options::gotoClassicLinker(int argc, const char* argv[])
{
argv[0] = "ld_classic";
+ // in -v mode, print command line passed to ld_classic
+ for(int i=0; i < argc; ++i) {
+ if ( strcmp(argv[i], "-v") == 0 ) {
+ for(int j=0; j < argc; ++j)
+ printf("%s ", argv[j]);
+ printf("\n");
+ break;
+ }
+ }
char rawPath[PATH_MAX];
char path[PATH_MAX];
uint32_t bufSize = PATH_MAX;
projects / apple / ld64.git / blobdiff