SectionBoundaryAtom* SectionBoundaryAtom::makeSectionBoundaryAtom(const char* name, bool start, const char* segSectName)
{
-
+
const char* segSectDividor = strrchr(segSectName, '$');
if ( segSectDividor == NULL )
throwf("malformed section$ symbol name: %s", name);
throwf("malformed section$ symbol name: %s", name);
char segName[18];
strlcpy(segName, segSectName, segNameLen+1);
-
- const ld::Section* section = new ld::Section(strdup(segName), sectionName, ld::Section::typeUnclassified);
+
+ ld::Section::Type sectType = ld::Section::typeUnclassified;
+ if (!strcmp(segName, "__TEXT") && !strcmp(sectionName, "__thread_starts"))
+ sectType = ld::Section::typeThreadStarts;
+
+ const ld::Section* section = new ld::Section(strdup(segName), sectionName, sectType);
return new SectionBoundaryAtom(name, *section, (start ? ld::Atom::typeSectionStart : typeSectionEnd));
}
void Resolver::initializeState()
{
- // set initial objc constraint based on command line options
- if ( _options.objcGc() )
- _internal.objcObjectConstraint = ld::File::objcConstraintRetainReleaseOrGC;
- else if ( _options.objcGcOnly() )
- _internal.objcObjectConstraint = ld::File::objcConstraintGC;
-
_internal.cpuSubType = _options.subArchitecture();
- _internal.minOSVersion = _options.minOSversion();
- _internal.derivedPlatform = 0;
// In -r mode, look for -linker_option additions
if ( _options.outputKind() == Options::kObjectFile ) {
_inputFiles.createIndirectDylibs();
}
}
+ // update which form of ObjC is being used
+ if ( objFile->hasObjC() )
+ _internal.hasObjC = true;
+
// Resolve bitcode section in the object file
if ( _options.bundleBitcode() ) {
if ( objFile->getBitcode() == NULL ) {
_internal.filesFromCompilerRT.push_back(objFile);
} else if (objFile->sourceKind() != ld::relocatable::File::kSourceLTO ) {
// No bitcode section, figure out if the object file comes from LTO/compiler static library
- switch ( _options.platform() ) {
- case Options::kPlatformOSX:
- case Options::kPlatform_bridgeOS:
- case Options::kPlatformUnknown:
- warning("all bitcode will be dropped because '%s' was built without bitcode. "
- "You must rebuild it with bitcode enabled (Xcode setting ENABLE_BITCODE), obtain an updated library from the vendor, or disable bitcode for this target. ", file.path());
- _internal.filesWithBitcode.clear();
- _internal.dropAllBitcode = true;
- break;
- case Options::kPlatformiOS:
- throwf("'%s' does not contain bitcode. "
- "You must rebuild it with bitcode enabled (Xcode setting ENABLE_BITCODE), obtain an updated library from the vendor, or disable bitcode for this target.", file.path());
- break;
- case Options::kPlatformWatchOS:
-#if SUPPORT_APPLE_TV
- case Options::kPlatform_tvOS:
-#endif
- throwf("'%s' does not contain bitcode. "
- "You must rebuild it with bitcode enabled (Xcode setting ENABLE_BITCODE) or obtain an updated library from the vendor", file.path());
- break;
- }
+ _options.platforms().forEach(^(ld::Platform platform, uint32_t version, bool &stop) {
+ switch ( platform ) {
+ case ld::kPlatform_macOS:
+ case ld::kPlatform_bridgeOS:
+ case ld::kPlatform_iOSMac:
+ case ld::kPlatform_unknown:
+ warning("all bitcode will be dropped because '%s' was built without bitcode. "
+ "You must rebuild it with bitcode enabled (Xcode setting ENABLE_BITCODE), obtain an updated library from the vendor, or disable bitcode for this target. ", file.path());
+ _internal.filesWithBitcode.clear();
+ _internal.dropAllBitcode = true;
+ break;
+ case ld::kPlatform_iOS:
+ case ld::kPlatform_iOSSimulator:
+ throwf("'%s' does not contain bitcode. "
+ "You must rebuild it with bitcode enabled (Xcode setting ENABLE_BITCODE), obtain an updated library from the vendor, or disable bitcode for this target.", file.path());
+ break;
+ case ld::kPlatform_watchOS:
+ case ld::kPlatform_watchOSSimulator:
+ case ld::kPlatform_tvOS:
+ case ld::kPlatform_tvOSSimulator:
+ throwf("'%s' does not contain bitcode. "
+ "You must rebuild it with bitcode enabled (Xcode setting ENABLE_BITCODE) or obtain an updated library from the vendor", file.path());
+ break;
+ }
+ });
}
} else {
// contains bitcode, check if it is just a marker
}
}
- // update which form of ObjC is being used
- switch ( file.objCConstraint() ) {
- case ld::File::objcConstraintNone:
- break;
- case ld::File::objcConstraintRetainRelease:
- if ( _internal.objcObjectConstraint == ld::File::objcConstraintGC )
- throwf("%s built with incompatible Garbage Collection settings to link with previous .o files", file.path());
- if ( _options.objcGcOnly() )
- throwf("command line specified -objc_gc_only, but file is retain/release based: %s", file.path());
- if ( _options.objcGc() )
- throwf("command line specified -objc_gc, but file is retain/release based: %s", file.path());
- if ( !_options.targetIOSSimulator() && (_internal.objcObjectConstraint != ld::File::objcConstraintRetainReleaseForSimulator) )
- _internal.objcObjectConstraint = ld::File::objcConstraintRetainRelease;
- break;
- case ld::File::objcConstraintRetainReleaseOrGC:
- if ( _internal.objcObjectConstraint == ld::File::objcConstraintNone )
- _internal.objcObjectConstraint = ld::File::objcConstraintRetainReleaseOrGC;
- if ( _options.targetIOSSimulator() )
- warning("linking ObjC for iOS Simulator, but object file (%s) was compiled for MacOSX", file.path());
- break;
- case ld::File::objcConstraintGC:
- if ( _internal.objcObjectConstraint == ld::File::objcConstraintRetainRelease )
- throwf("%s built with incompatible Garbage Collection settings to link with previous .o files", file.path());
- _internal.objcObjectConstraint = ld::File::objcConstraintGC;
- if ( _options.targetIOSSimulator() )
- warning("linking ObjC for iOS Simulator, but object file (%s) was compiled for MacOSX", file.path());
- break;
- case ld::File::objcConstraintRetainReleaseForSimulator:
- if ( _internal.objcObjectConstraint == ld::File::objcConstraintNone ) {
- if ( !_options.targetIOSSimulator() && (_options.outputKind() != Options::kObjectFile) )
- warning("ObjC object file (%s) was compiled for iOS Simulator, but linking for MacOSX", file.path());
- _internal.objcObjectConstraint = ld::File::objcConstraintRetainReleaseForSimulator;
- }
- else if ( _internal.objcObjectConstraint != ld::File::objcConstraintRetainReleaseForSimulator ) {
- _internal.objcObjectConstraint = ld::File::objcConstraintRetainReleaseForSimulator;
- }
- break;
- }
-
// verify all files use same version of Swift language
if ( file.swiftVersion() != 0 ) {
+ _internal.someObjectFileHasSwift = true;
if ( _internal.swiftVersion == 0 ) {
_internal.swiftVersion = file.swiftVersion();
}
if ( objFile->hasllvmProfiling() )
_havellvmProfiling = true;
+#if MULTI
// update minOSVersion off all .o files
uint32_t objMinOS = objFile->minOSVersion();
if ( !objMinOS )
_internal.objectFileFoundWithNoVersion = true;
if ( (_options.outputKind() == Options::kObjectFile) && (objMinOS > _internal.minOSVersion) )
_internal.minOSVersion = objMinOS;
+#endif
- uint32_t objPlatform = objFile->platform();
- if ( (objPlatform != 0) && (_options.outputKind() == Options::kObjectFile) && (_internal.derivedPlatform == 0) )
- _internal.derivedPlatform = objPlatform;
-
+ auto objPlatforms = objFile->platforms();
+ if ( (!objPlatforms.empty()) && (_options.outputKind() == Options::kObjectFile) && (_internal.derivedPlatforms.empty()) )
+ _internal.derivedPlatforms = objPlatforms;
// update set of known tools used
for (const std::pair<uint32_t,uint32_t>& entry : objFile->toolVersions()) {
uint64_t combined = (uint64_t)entry.first << 32 | entry.second;
if ( realpath(tempPath, tcLibPath) == NULL ||
realpath(dylibFile->path(), tempPath) == NULL ||
strncmp(tcLibPath, tempPath, strlen(tcLibPath)) != 0 ) {
- switch ( _options.platform() ) {
- case Options::kPlatformOSX:
- case Options::kPlatform_bridgeOS:
- case Options::kPlatformUnknown:
- warning("all bitcode will be dropped because '%s' was built without bitcode. "
- "You must rebuild it with bitcode enabled (Xcode setting ENABLE_BITCODE), obtain an updated library from the vendor, or disable bitcode for this target.", file.path());
- _internal.filesWithBitcode.clear();
- _internal.dropAllBitcode = true;
- break;
- case Options::kPlatformiOS:
- throwf("'%s' does not contain bitcode. "
- "You must rebuild it with bitcode enabled (Xcode setting ENABLE_BITCODE), obtain an updated library from the vendor, or disable bitcode for this target.", file.path());
- break;
- case Options::kPlatformWatchOS:
-#if SUPPORT_APPLE_TV
- case Options::kPlatform_tvOS:
-#endif
- throwf("'%s' does not contain bitcode. "
- "You must rebuild it with bitcode enabled (Xcode setting ENABLE_BITCODE) or obtain an updated library from the vendor", file.path());
- break;
- }
+ _options.platforms().forEach(^(ld::Platform platform, uint32_t version, bool &stop) {
+ switch ( platform ) {
+ case ld::kPlatform_macOS:
+ case ld::kPlatform_bridgeOS:
+ case ld::kPlatform_iOSMac:
+ case ld::kPlatform_unknown:
+ warning("all bitcode will be dropped because '%s' was built without bitcode. "
+ "You must rebuild it with bitcode enabled (Xcode setting ENABLE_BITCODE), obtain an updated library from the vendor, or disable bitcode for this target.", file.path());
+ _internal.filesWithBitcode.clear();
+ _internal.dropAllBitcode = true;
+ break;
+ case ld::kPlatform_iOS:
+ case ld::kPlatform_iOSSimulator:
+ throwf("'%s' does not contain bitcode. "
+ "You must rebuild it with bitcode enabled (Xcode setting ENABLE_BITCODE), obtain an updated library from the vendor, or disable bitcode for this target.", file.path());
+ break;
+ case ld::kPlatform_watchOS:
+ case ld::kPlatform_watchOSSimulator:
+ case ld::kPlatform_tvOS:
+ case ld::kPlatform_tvOSSimulator:
+ throwf("'%s' does not contain bitcode. "
+ "You must rebuild it with bitcode enabled (Xcode setting ENABLE_BITCODE) or obtain an updated library from the vendor", file.path());
+ break;
+ }
+ });
}
}
// Error on bitcode marker in non-system frameworks if -bitcode_verify is used
dylibFile->path());
}
- // update which form of ObjC dylibs are being linked
- switch ( dylibFile->objCConstraint() ) {
- case ld::File::objcConstraintNone:
- break;
- case ld::File::objcConstraintRetainRelease:
- if ( _internal.objcDylibConstraint == ld::File::objcConstraintGC )
- throwf("%s built with incompatible Garbage Collection settings to link with previous dylibs", file.path());
- if ( _options.objcGcOnly() )
- throwf("command line specified -objc_gc_only, but dylib is retain/release based: %s", file.path());
- if ( _options.objcGc() )
- throwf("command line specified -objc_gc, but dylib is retain/release based: %s", file.path());
- if ( _options.targetIOSSimulator() )
- warning("linking ObjC for iOS Simulator, but dylib (%s) was compiled for MacOSX", file.path());
- _internal.objcDylibConstraint = ld::File::objcConstraintRetainRelease;
- break;
- case ld::File::objcConstraintRetainReleaseOrGC:
- if ( _internal.objcDylibConstraint == ld::File::objcConstraintNone )
- _internal.objcDylibConstraint = ld::File::objcConstraintRetainReleaseOrGC;
- if ( _options.targetIOSSimulator() )
- warning("linking ObjC for iOS Simulator, but dylib (%s) was compiled for MacOSX", file.path());
- break;
- case ld::File::objcConstraintGC:
- if ( _internal.objcDylibConstraint == ld::File::objcConstraintRetainRelease )
- throwf("%s built with incompatible Garbage Collection settings to link with previous dylibs", file.path());
- if ( _options.targetIOSSimulator() )
- warning("linking ObjC for iOS Simulator, but dylib (%s) was compiled for MacOSX", file.path());
- _internal.objcDylibConstraint = ld::File::objcConstraintGC;
- break;
- case ld::File::objcConstraintRetainReleaseForSimulator:
- if ( _internal.objcDylibConstraint == ld::File::objcConstraintNone )
- _internal.objcDylibConstraint = ld::File::objcConstraintRetainReleaseForSimulator;
- else if ( _internal.objcDylibConstraint != ld::File::objcConstraintRetainReleaseForSimulator ) {
- warning("ObjC dylib (%s) was compiled for iOS Simulator, but dylibs others were compiled for MacOSX", file.path());
- _internal.objcDylibConstraint = ld::File::objcConstraintRetainReleaseForSimulator;
+ // Don't allow swift frameworks to link other swift frameworks.
+ if ( !_internal.firstSwiftDylibFile && _options.outputKind() == Options::kDynamicLibrary
+ && file.swiftVersion() != 0 && getenv("LD_DISALLOW_SWIFT_LINKING_SWIFT")) {
+ // Check that we aren't a whitelisted path.
+ bool inWhiteList = false;
+ const char *whitelistedPaths[] = { "/System/Library/PrivateFrameworks/Swift" };
+ for (auto whitelistedPath : whitelistedPaths) {
+ if (!strncmp(whitelistedPath, dylibFile->installPath(), strlen(whitelistedPath))) {
+ inWhiteList = true;
+ break;
}
- break;
+ }
+ if (!inWhiteList) {
+ _internal.firstSwiftDylibFile = dylibFile;
+ }
}
// <rdar://problem/25680358> verify dylibs use same version of Swift language
const char* depInstallName = dylibFile->installPath();
// <rdar://problem/17229513> embedded frameworks are only supported on iOS 8 and later
if ( (depInstallName != NULL) && (depInstallName[0] != '/') ) {
- if ( (_options.iOSVersionMin() != iOSVersionUnset) && (_options.iOSVersionMin() < iOS_8_0) ) {
+ if ( _options.platforms().contains(ld::kPlatform_iOS) && !_options.platforms().minOS(iOS_8_0) ) {
// <rdar://problem/17598404> only warn about linking against embedded dylib if it is built for iOS 8 or later
- if ( dylibFile->minOSVersion() >= iOS_8_0 )
+ if ( dylibFile->platforms().minOS(ld::iOS_8_0) )
throwf("embedded dylibs/frameworks are only supported on iOS 8.0 and later (%s)", depInstallName);
}
}
}
}
}
-
}
void Resolver::doAtom(const ld::Atom& atom)
case ld::Fixup::kindSubtractTargetAddress:
case ld::Fixup::kindStoreTargetAddressLittleEndian32:
case ld::Fixup::kindStoreTargetAddressLittleEndian64:
+#if SUPPORT_ARCH_arm64e
+ case ld::Fixup::kindStoreTargetAddressLittleEndianAuth64:
+#endif
case ld::Fixup::kindStoreTargetAddressBigEndian32:
case ld::Fixup::kindStoreTargetAddressBigEndian64:
case ld::Fixup::kindStoreTargetAddressX86PCRel32:
int unresolvableExportsCount = 0;
if ( unresolvableCount != 0 ) {
if ( doPrint ) {
+ for (const auto& lib : _internal.missingLinkerOptionLibraries)
+ warning("Could not find auto-linked library '%s'", lib);
+ for (const auto& frm : _internal.missingLinkerOptionFrameworks)
+ warning("Could not find auto-linked framework '%s'", frm);
if ( _options.printArchPrefix() )
fprintf(stderr, "Undefined symbols for architecture %s:\n", _options.architectureName());
else
}
_internal.classicBindingHelper = NULL;
+ // FIXME: What about fMakeThreadedStartsSection?
if ( needsStubHelper && !_options.makeCompressedDyldInfo() ) {
// "dyld_stub_binding_helper" comes from .o file, so should already exist in symbol table
if ( _symbolTable.hasName("dyld_stub_binding_helper") ) {
}
_internal.compressedFastBinderProxy = NULL;
+ // FIXME: What about fMakeThreadedStartsSection?
if ( needsStubHelper && _options.makeCompressedDyldInfo() ) {
// "dyld_stub_binder" comes from libSystem.dylib so will need to manually resolve
if ( !_symbolTable.hasName("dyld_stub_binder") ) {
// <rdar://problem/7783918> make sure there is a __text section so that codesigning works
if ( (_options.outputKind() == Options::kDynamicLibrary) || (_options.outputKind() == Options::kDynamicBundle) )
_internal.getFinalSection(*new ld::Section("__TEXT", "__text", ld::Section::typeCode));
+
+ // Don't allow swift frameworks to link other swift frameworks.
+ if ( _internal.someObjectFileHasSwift && _internal.firstSwiftDylibFile != nullptr )
+ throwf("linking swift frameworks against other swift frameworks (%s) is not permitted",
+ _internal.firstSwiftDylibFile->path());
}
void Resolver::fillInEntryPoint()
optOpt.outputFilePath = _options.outputFilePath();
optOpt.tmpObjectFilePath = _options.tempLtoObjectPath();
optOpt.ltoCachePath = _options.ltoCachePath();
+ optOpt.ltoPruneIntervalOverwrite = _options.ltoPruneIntervalOverwrite();
optOpt.ltoPruneInterval = _options.ltoPruneInterval();
optOpt.ltoPruneAfter = _options.ltoPruneAfter();
optOpt.ltoMaxCacheSize = _options.ltoMaxCacheSize();
optOpt.armUsesZeroCostExceptions = _options.armUsesZeroCostExceptions();
optOpt.simulator = _options.targetIOSSimulator();
optOpt.ignoreMismatchPlatform = ((_options.outputKind() == Options::kPreload) || (_options.outputKind() == Options::kStaticExecutable));
+#if SUPPORT_ARCH_arm64e
+ optOpt.supportsAuthenticatedPointers = _options.supportsAuthenticatedPointers();
+#endif
optOpt.bitcodeBundle = (_options.bundleBitcode() && (_options.bitcodeKind() != Options::kBitcodeMarker));
optOpt.maxDefaultCommonAlignment = _options.maxDefaultCommonAlign();
optOpt.arch = _options.architecture();
optOpt.mcpu = _options.mcpuLTO();
- optOpt.platform = _options.platform();
- optOpt.minOSVersion = _options.minOSversion();
+ optOpt.platforms = _options.platforms();
optOpt.llvmOptions = &_options.llvmOptions();
optOpt.initialUndefines = &_options.initialUndefines();
projects / apple / ld64.git / blobdiff