/* -*- mode: C++; c-basic-offset: 4; tab-width: 4 -*-*
*
- * Copyright (c) 2009 Apple Inc. All rights reserved.
+ * Copyright (c) 2009-2011 Apple Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
#ifndef __INPUT_FILES_H__
#define __INPUT_FILES_H__
+#define HAVE_PTHREADS 1
+
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <mach/mach_host.h>
#include <dlfcn.h>
#include <mach-o/dyld.h>
+#if HAVE_PTHREADS
+#include <pthread.h>
+#endif
#include <vector>
virtual ld::dylib::File* findDylib(const char* installPath, const char* fromPath);
// iterates all atoms in initial files
- bool forEachInitialAtom(ld::File::AtomHandler&) const;
+ void forEachInitialAtom(ld::File::AtomHandler&, ld::Internal& state);
// searches libraries for name
- bool searchLibraries(const char* name, bool searchDylibs, bool searchArchives, ld::File::AtomHandler&) const;
+ bool searchLibraries(const char* name, bool searchDylibs, bool searchArchives,
+ bool dataSymbolOnly, ld::File::AtomHandler&) const;
// see if any linked dylibs export a weak def of symbol
bool searchWeakDefInDylib(const char* name) const;
// copy dylibs to link with in command line order
bool inferredArch() const { return _inferredArch; }
- uint32_t nextInputOrdinal() const { return _nextInputOrdinal++; }
-
+ void addLinkerOptionLibraries(ld::Internal& state, ld::File::AtomHandler& handler);
+ void createIndirectDylibs();
+
// for -print_statistics
- uint64_t _totalObjectSize;
- uint64_t _totalArchiveSize;
- uint32_t _totalObjectLoaded;
- uint32_t _totalArchivesLoaded;
- uint32_t _totalDylibsLoaded;
+ volatile int64_t _totalObjectSize;
+ volatile int64_t _totalArchiveSize;
+ volatile int32_t _totalObjectLoaded;
+ volatile int32_t _totalArchivesLoaded;
+ volatile int32_t _totalDylibsLoaded;
private:
void inferArchitecture(Options& opts, const char** archName);
const char* fileArch(const uint8_t* p, unsigned len);
- ld::File* makeFile(const Options::FileInfo& info);
- ld::File* addDylib(ld::dylib::File* f, const Options::FileInfo& info, uint64_t mappedLen);
- ld::File* addObject(ld::relocatable::File* f, const Options::FileInfo& info, uint64_t mappedLen);
- ld::File* addArchive(ld::File* f, const Options::FileInfo& info, uint64_t mappedLen);
+ ld::File* makeFile(const Options::FileInfo& info, bool indirectDylib);
+ ld::File* addDylib(ld::dylib::File* f, const Options::FileInfo& info);
void logTraceInfo (const char* format, ...) const;
void logDylib(ld::File*, bool indirect);
void logArchive(ld::File*) const;
- void createIndirectDylibs();
+ void markExplicitlyLinkedDylibs();
void checkDylibClientRestrictions(ld::dylib::File*);
void createOpaqueFileSections();
+ bool libraryAlreadyLoaded(const char* path);
+
+ // for pipelined linking
+ void waitForInputFiles();
+ static void waitForInputFiles(InputFiles *inputFiles);
+
+ // for threaded input file processing
+ void parseWorkerThread();
+ static void parseWorkerThread(InputFiles *inputFiles);
+ void startThread(void (*threadFunc)(InputFiles *)) const;
- class CStringEquals {
- public:
- bool operator()(const char* left, const char* right) const { return (strcmp(left, right) == 0); }
- };
- typedef __gnu_cxx::hash_map<const char*, ld::dylib::File*, __gnu_cxx::hash<const char*>, CStringEquals> InstallNameToDylib;
+ typedef std::unordered_map<const char*, ld::dylib::File*, CStringHash, CStringEquals> InstallNameToDylib;
const Options& _options;
std::vector<ld::File*> _inputFiles;
InstallNameToDylib _installPathToDylibs;
std::set<ld::dylib::File*> _allDylibs;
ld::dylib::File* _bundleLoader;
- mutable uint32_t _nextInputOrdinal;
- bool _allDirectDylibsLoaded;
bool _inferredArch;
+ struct strcompclass {
+ bool operator() (const char *a, const char *b) const { return ::strcmp(a, b) < 0; }
+ };
+
+ // for threaded input file processing
+#if HAVE_PTHREADS
+ pthread_mutex_t _parseLock;
+ pthread_cond_t _parseWorkReady; // used by parse threads to block for work
+ pthread_cond_t _newFileAvailable; // used by main thread to block for parsed input files
+ int _availableWorkers; // number of remaining unstarted parse threads
+ int _idleWorkers; // number of running parse threads that are idle
+ int _neededFileSlot; // input file the resolver is currently blocked waiting for
+ int _parseCursor; // slot to begin searching for a file to parse
+ int _availableInputFiles; // number of input fileinfos with readyToParse==true
+#endif
+ const char * _exception; // passes an exception message from parse thread to main thread
+ int _remainingInputFiles; // number of input files still to parse
+
+ ld::File::Ordinal _indirectDylibOrdinal;
+ ld::File::Ordinal _linkerOptionOrdinal;
+
+ class LibraryInfo {
+ ld::File* _lib;
+ bool _isDylib;
+ public:
+ LibraryInfo(ld::dylib::File* dylib) : _lib(dylib), _isDylib(true) {};
+ LibraryInfo(ld::archive::File* dylib) : _lib(dylib), _isDylib(false) {};
+
+ bool isDylib() { return _isDylib; }
+ ld::dylib::File *dylib() { return (ld::dylib::File*)_lib; }
+ ld::archive::File *archive() { return (ld::archive::File*)_lib; }
+ };
+ std::vector<LibraryInfo> _searchLibraries;
};
} // namespace tool
projects / apple / ld64.git / blobdiff