#include <unistd.h>
#include <assert.h>
+#include <set>
+#include <map>
#include <vector>
+#include <string>
#include <unordered_set>
#include "configure.h"
namespace ld {
+// Forward declaration for bitcode support
+class Bitcode;
+
//
// ld::File
//
virtual uint8_t swiftVersion() const { return 0; }
virtual uint32_t cpuSubType() const { return 0; }
virtual uint32_t subFileCount() const { return 1; }
+ virtual uint32_t minOSVersion() const { return 0; }
+ virtual uint32_t platformLoadCommand() const { return 0; }
bool fileExists() const { return _modTime != 0; }
Type type() const { return _type; }
+ virtual Bitcode* getBitcode() const { return NULL; }
private:
const char* _path;
time_t _modTime;
iOS_4_2=0x00040200, iOS_4_3=0x00040300, iOS_5_0=0x00050000,
iOS_6_0=0x00060000, iOS_7_0=0x00070000, iOS_8_0=0x00080000,
iOS_9_0=0x00090000, iOS_Future=0x10000000};
-
+enum WatchOSVersionMin { wOSVersionUnset=0, wOS_1_0=0x00010000, wOS_2_0=0x00020000 };
+
+
namespace relocatable {
//
// ld::relocatable::File
{
public:
enum DebugInfoKind { kDebugInfoNone=0, kDebugInfoStabs=1, kDebugInfoDwarf=2, kDebugInfoStabsUUID=3 };
+ enum SourceKind { kSourceUnknown=0, kSourceObj, kSourceLTO, kSourceArchive, kSourceCompilerArchive };
struct Stab {
const class Atom* atom;
uint8_t type;
virtual bool canScatterAtoms() const = 0;
virtual bool hasLongBranchStubs() { return false; }
virtual LinkerOptionsList* linkerOptions() const = 0;
+ virtual SourceKind sourceKind() const { return kSourceUnknown; }
};
} // namespace relocatable
virtual bool hasWeakDefinition(const char* name) const = 0;
virtual bool hasPublicInstallName() const = 0;
virtual bool allSymbolsAreWeakImported() const = 0;
- virtual const void* codeSignatureDR() const = 0;
virtual bool installPathVersionSpecific() const { return false; }
virtual bool appExtensionSafe() const = 0;
- virtual MacVersionMin macMinVersion() const { return macVersionUnset; }
- virtual IOSVersionMin iOSMinVersion() const { return iOSVersionUnset; }
protected:
+ struct ReExportChain { ReExportChain* prev; const File* file; };
+ virtual std::pair<bool, bool> hasWeakDefinitionImpl(const char* name) const = 0;
+ virtual bool containsOrReExports(const char* name, bool& weakDef, bool& tlv, uint64_t& defAddress) const = 0;
+ virtual void assertNoReExportCycles(ReExportChain*) const = 0;
+
const char* _dylibInstallPath;
uint32_t _dylibTimeStamp;
uint32_t _dylibCurrentVersion;
typeLazyDylibPointer, typeStubHelper, typeInitializerPointers, typeTerminatorPointers,
typeStubClose, typeLazyPointerClose, typeAbsoluteSymbols,
typeTLVDefs, typeTLVZeroFill, typeTLVInitialValues, typeTLVInitializerPointers, typeTLVPointers,
- typeFirstSection, typeLastSection, typeDebug };
+ typeFirstSection, typeLastSection, typeDebug, typeSectCreate };
Section(const char* sgName, const char* sctName,
typeSectionEnd, typeBranchIsland, typeLazyPointer, typeStub, typeNonLazyPointer,
typeLazyDylibPointer, typeStubHelper, typeInitializerPointers, typeTerminatorPointers,
typeLTOtemporary, typeResolver,
- typeTLV, typeTLVZeroFill, typeTLVInitialValue, typeTLVInitializerPointers };
+ typeTLV, typeTLVZeroFill, typeTLVInitialValue, typeTLVInitializerPointers, typeTLVPointer };
enum SymbolTableInclusion { symbolTableNotIn, symbolTableNotInFinalLinkedImages, symbolTableIn,
symbolTableInAndNeverStrip, symbolTableInAsAbsolute,
_contentType(ct), _symbolTableInclusion(i),
_scope(s), _mode(modeSectionOffset),
_overridesADylibsWeakDef(false), _coalescedAway(false),
- _live(false), _machoSection(0), _weakImportState(weakImportUnset)
+ _live(false), _dontDeadStripIfRefLive(false),
+ _machoSection(0), _weakImportState(weakImportUnset)
{
#ifndef NDEBUG
switch ( _combine ) {
ContentType contentType() const { return _contentType; }
SymbolTableInclusion symbolTableInclusion() const{ return _symbolTableInclusion; }
bool dontDeadStrip() const { return _dontDeadStrip; }
+ bool dontDeadStripIfReferencesLive() const { return _dontDeadStripIfRefLive; }
bool isThumb() const { return _thumb; }
bool isAlias() const { return _alias; }
Alignment alignment() const { return Alignment(_alignmentPowerOf2, _alignmentModulus); }
void setCoalescedAway() { _coalescedAway = true; }
void setWeakImportState(bool w) { assert(_definition == definitionProxy); _weakImportState = ( w ? weakImportTrue : weakImportFalse); }
void setAutoHide() { _autoHide = true; }
+ void setDontDeadStripIfReferencesLive() { _dontDeadStripIfRefLive = true; }
void setLive() { _live = true; }
void setLive(bool value) { _live = value; }
void setMachoSection(unsigned x) { assert(x != 0); assert(x < 256); _machoSection = x; }
bool _overridesADylibsWeakDef : 1;
bool _coalescedAway : 1;
bool _live : 1;
+ bool _dontDeadStripIfRefLive : 1;
unsigned _machoSection : 8;
WeakImportState _weakImportState : 2;
};
typedef std::unordered_set<const char*, ld::CStringHash, ld::CStringEquals> CStringSet;
+
class Internal
{
public:
bool hasExternalRelocs;
};
+ typedef std::map<const ld::Atom*, FinalSection*> AtomToSection;
+
virtual uint64_t assignFileOffsets() = 0;
virtual void setSectionSizesAndAlignments() = 0;
virtual ld::Internal::FinalSection* addAtom(const Atom&) = 0;
lazyBindingHelper(NULL), compressedFastBinderProxy(NULL),
objcObjectConstraint(ld::File::objcConstraintNone),
objcDylibConstraint(ld::File::objcConstraintNone),
- swiftVersion(0), cpuSubType(0),
+ swiftVersion(0), cpuSubType(0), minOSVersion(0),
+ objectFileFoundWithNoVersion(false),
allObjectFilesScatterable(true),
someObjectFileHasDwarf(false), usingHugeSections(false),
hasThreadLocalVariableDefinitions(false),
hasWeakExternalSymbols(false),
- someObjectHasOptimizationHints(false) { }
-
+ someObjectHasOptimizationHints(false),
+ dropAllBitcode(false), embedMarkerOnly(false) { }
+
std::vector<FinalSection*> sections;
std::vector<ld::dylib::File*> dylibs;
std::vector<ld::relocatable::File::Stab> stabs;
+ AtomToSection atomToSection;
CStringSet linkerOptionLibraries;
CStringSet linkerOptionFrameworks;
std::vector<const ld::Atom*> indirectBindingTable;
+ std::vector<const ld::relocatable::File*> filesWithBitcode;
const ld::dylib::File* bundleLoader;
const Atom* entryPoint;
const Atom* classicBindingHelper;
ld::File::ObjcConstraint objcDylibConstraint;
uint8_t swiftVersion;
uint32_t cpuSubType;
+ uint32_t minOSVersion;
+ uint32_t derivedPlatformLoadCommand;
+ bool objectFileFoundWithNoVersion;
bool allObjectFilesScatterable;
bool someObjectFileHasDwarf;
bool usingHugeSections;
bool hasThreadLocalVariableDefinitions;
bool hasWeakExternalSymbols;
bool someObjectHasOptimizationHints;
+ bool dropAllBitcode;
+ bool embedMarkerOnly;
+ std::string ltoBitcodePath;
};
-
-
-
-
} // namespace ld
#endif // __LD_HPP__
projects / apple / ld64.git / blobdiff