/* -*- 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@
*
// overrides of ld::Atom
virtual ld::File* file() const { return NULL; }
- virtual bool translationUnitSource(const char** dir, const char** nm) const
- { return false; }
virtual const char* name() const { return "mach-o header and load commands"; }
virtual uint64_t size() const;
virtual uint64_t objectAddress() const { return _address; }
uint8_t* copyRoutinesLoadCommand(uint8_t* p) const;
uint8_t* copyUUIDLoadCommand(uint8_t* p) const;
uint8_t* copyVersionLoadCommand(uint8_t* p) const;
+ uint8_t* copySourceVersionLoadCommand(uint8_t* p) const;
uint8_t* copyThreadsLoadCommand(uint8_t* p) const;
+ uint8_t* copyEntryPointLoadCommand(uint8_t* p) const;
uint8_t* copyEncryptionLoadCommand(uint8_t* p) const;
uint8_t* copySplitSegInfoLoadCommand(uint8_t* p) const;
uint8_t* copyDylibLoadCommand(uint8_t* p, const ld::dylib::File*) const;
uint8_t* copySubLibraryLoadCommand(uint8_t* p, const char* name) const;
uint8_t* copySubUmbrellaLoadCommand(uint8_t* p, const char* name) const;
uint8_t* copyFunctionStartsLoadCommand(uint8_t* p) const;
+ uint8_t* copyDataInCodeLoadCommand(uint8_t* p) const;
+ uint8_t* copyDependentDRLoadCommand(uint8_t* p) const;
uint8_t* copyDyldEnvLoadCommand(uint8_t* p, const char* env) const;
uint32_t sectionFlags(ld::Internal::FinalSection* sect) const;
bool _hasDyldLoadCommand;
bool _hasDylibIDLoadCommand;
bool _hasThreadLoadCommand;
+ bool _hasEntryPointLoadCommand;
bool _hasEncryptionLoadCommand;
bool _hasSplitSegInfoLoadCommand;
bool _hasRoutinesLoadCommand;
bool _hasSubFrameworkLoadCommand;
bool _hasVersionLoadCommand;
bool _hasFunctionStartsLoadCommand;
+ bool _hasDataInCodeLoadCommand;
+ bool _hasSourceVersionLoadCommand;
+ bool _hasDependentDRInfo;
uint32_t _dylibLoadCommmandsCount;
uint32_t _allowableClientLoadCommmandsCount;
uint32_t _dyldEnvironExrasCount;
_hasDyldInfoLoadCommand = opts.makeCompressedDyldInfo();
_hasDyldLoadCommand = ((opts.outputKind() == Options::kDynamicExecutable) || (_options.outputKind() == Options::kDyld));
_hasDylibIDLoadCommand = (opts.outputKind() == Options::kDynamicLibrary);
- _hasThreadLoadCommand = _hasDyldLoadCommand || (opts.outputKind() == Options::kStaticExecutable)
- || (opts.outputKind() == Options::kPreload)
- || (opts.outputKind() == Options::kDyld);
+ _hasThreadLoadCommand = _options.needsThreadLoadCommand();
+ _hasEntryPointLoadCommand = _options.needsEntryPointLoadCommand();
_hasEncryptionLoadCommand = opts.makeEncryptable();
_hasSplitSegInfoLoadCommand = opts.sharedRegionEligible();
_hasRoutinesLoadCommand = (opts.initFunctionName() != NULL);
}
break;
case Options::kStaticExecutable:
- _hasDynamicSymbolTableLoadCommand = false;
+ _hasDynamicSymbolTableLoadCommand = opts.positionIndependentExecutable();
break;
case Options::kPreload:
_hasDynamicSymbolTableLoadCommand = opts.positionIndependentExecutable();
_hasSubFrameworkLoadCommand = (_options.umbrellaName() != NULL);
_hasVersionLoadCommand = _options.addVersionLoadCommand();
_hasFunctionStartsLoadCommand = _options.addFunctionStarts();
+ _hasDataInCodeLoadCommand = _options.addDataInCodeInfo();
+ _hasSourceVersionLoadCommand = _options.needsSourceVersionLoadCommand();
+ _hasDependentDRInfo = _options.needsDependentDRInfo();
_dylibLoadCommmandsCount = _writer.dylibCount();
_allowableClientLoadCommmandsCount = _options.allowableClients().size();
_dyldEnvironExrasCount = _options.dyldEnvironExtras().size();
if ( _hasVersionLoadCommand )
sz += sizeof(macho_version_min_command<P>);
+
+ if ( _hasSourceVersionLoadCommand )
+ sz += sizeof(macho_source_version_command<P>);
if ( _hasThreadLoadCommand )
sz += this->threadLoadCommandSize();
+
+ if ( _hasEntryPointLoadCommand )
+ sz += sizeof(macho_entry_point_command<P>);
if ( _hasEncryptionLoadCommand )
sz += sizeof(macho_encryption_info_command<P>);
if ( _hasFunctionStartsLoadCommand )
sz += sizeof(macho_linkedit_data_command<P>);
+ if ( _hasDataInCodeLoadCommand )
+ sz += sizeof(macho_linkedit_data_command<P>);
+
+ if ( _hasDependentDRInfo )
+ sz += sizeof(macho_linkedit_data_command<P>);
+
return sz;
}
if ( _hasVersionLoadCommand )
++count;
+ if ( _hasSourceVersionLoadCommand )
+ ++count;
+
if ( _hasThreadLoadCommand )
++count;
+
+ if ( _hasEntryPointLoadCommand )
+ ++count;
if ( _hasEncryptionLoadCommand )
++count;
if ( _hasFunctionStartsLoadCommand )
++count;
+ if ( _hasDataInCodeLoadCommand )
+ ++count;
+
+ if ( _hasDependentDRInfo )
+ ++count;
+
return count;
}
else {
if ( _options.outputKind() == Options::kStaticExecutable ) {
bits |= MH_NOUNDEFS;
+ if ( _options.positionIndependentExecutable() )
+ bits |= MH_PIE;
}
else if ( _options.outputKind() == Options::kPreload ) {
bits |= MH_NOUNDEFS;
return bits;
}
-template <> uint32_t HeaderAndLoadCommandsAtom<ppc>::magic() const { return MH_MAGIC; }
-template <> uint32_t HeaderAndLoadCommandsAtom<ppc64>::magic() const { return MH_MAGIC_64; }
template <> uint32_t HeaderAndLoadCommandsAtom<x86>::magic() const { return MH_MAGIC; }
template <> uint32_t HeaderAndLoadCommandsAtom<x86_64>::magic() const { return MH_MAGIC_64; }
template <> uint32_t HeaderAndLoadCommandsAtom<arm>::magic() const { return MH_MAGIC; }
-template <> uint32_t HeaderAndLoadCommandsAtom<ppc>::cpuType() const { return CPU_TYPE_POWERPC; }
-template <> uint32_t HeaderAndLoadCommandsAtom<ppc64>::cpuType() const { return CPU_TYPE_POWERPC64; }
template <> uint32_t HeaderAndLoadCommandsAtom<x86>::cpuType() const { return CPU_TYPE_I386; }
template <> uint32_t HeaderAndLoadCommandsAtom<x86_64>::cpuType() const { return CPU_TYPE_X86_64; }
template <> uint32_t HeaderAndLoadCommandsAtom<arm>::cpuType() const { return CPU_TYPE_ARM; }
-template <>
-uint32_t HeaderAndLoadCommandsAtom<ppc>::cpuSubType() const
-{
- return _state.cpuSubType;
-}
-
-template <>
-uint32_t HeaderAndLoadCommandsAtom<ppc64>::cpuSubType() const
-{
- if ( (_options.outputKind() == Options::kDynamicExecutable) && (_options.macosxVersionMin() >= ld::mac10_5) )
- return (CPU_SUBTYPE_POWERPC_ALL | 0x80000000);
- else
- return CPU_SUBTYPE_POWERPC_ALL;
-}
template <>
uint32_t HeaderAndLoadCommandsAtom<x86>::cpuSubType() const
return S_REGULAR | S_ATTR_NO_DEAD_STRIP;
else if ( (strncmp(sect->sectionName(), "__objc_nlclslist", 16) == 0) && (strcmp(sect->segmentName(), "__DATA") == 0) )
return S_REGULAR | S_ATTR_NO_DEAD_STRIP;
+ else if ( (strncmp(sect->sectionName(), "__objc_nlcatlist", 16) == 0) && (strcmp(sect->segmentName(), "__DATA") == 0) )
+ return S_REGULAR | S_ATTR_NO_DEAD_STRIP;
else
return S_REGULAR;
case ld::Section::typeCode:
else
return S_SYMBOL_STUBS | S_ATTR_SOME_INSTRUCTIONS | S_ATTR_PURE_INSTRUCTIONS;
case ld::Section::typeNonLazyPointer:
- return S_NON_LAZY_SYMBOL_POINTERS;
+ if ( _options.outputKind() == Options::kKextBundle )
+ return S_REGULAR;
+ else if ( (_options.outputKind() == Options::kStaticExecutable) && _options.positionIndependentExecutable() )
+ return S_REGULAR;
+ else
+ return S_NON_LAZY_SYMBOL_POINTERS;
case ld::Section::typeDyldInfo:
return S_REGULAR;
case ld::Section::typeLazyDylibPointer:
else
return S_REGULAR | S_ATTR_SOME_INSTRUCTIONS | S_ATTR_PURE_INSTRUCTIONS;
case ld::Section::typeInitializerPointers:
- return S_MOD_INIT_FUNC_POINTERS;
+ // <rdar://problem/11456679> i386 kexts need different section type
+ if ( (_options.outputKind() == Options::kObjectFile)
+ && (strcmp(sect->sectionName(), "__constructor") == 0)
+ && (strcmp(sect->segmentName(), "__TEXT") == 0) )
+ return S_REGULAR;
+ else
+ return S_MOD_INIT_FUNC_POINTERS;
case ld::Section::typeTerminatorPointers:
return S_MOD_TERM_FUNC_POINTERS;
case ld::Section::typeTLVInitialValues:
cmd->set_cmdsize(sz);
cmd->set_name_offset();
cmd->set_timestamp(1); // needs to be some constant value that is different than DylibLoadCommandsAtom uses
- cmd->set_current_version(_options.currentVersion());
+ cmd->set_current_version(_options.currentVersion32());
cmd->set_compatibility_version(_options.compatibilityVersion());
strcpy((char*)&p[sizeof(macho_dylib_command<P>)], _options.installPath());
return p + sz;
cmd->set_cmd(LC_VERSION_MIN_MACOSX);
cmd->set_cmdsize(sizeof(macho_version_min_command<P>));
cmd->set_version((uint32_t)macVersion);
- cmd->set_reserved(0);
+ cmd->set_sdk(_options.sdkVersion());
}
else {
cmd->set_cmd(LC_VERSION_MIN_IPHONEOS);
cmd->set_cmdsize(sizeof(macho_version_min_command<P>));
cmd->set_version((uint32_t)iOSVersion);
- cmd->set_reserved(0);
+ cmd->set_sdk(_options.sdkVersion());
}
return p + sizeof(macho_version_min_command<P>);
}
-
-template <>
-uint32_t HeaderAndLoadCommandsAtom<ppc>::threadLoadCommandSize() const
-{
- return this->alignedSize(16 + 40*4); // base size + PPC_THREAD_STATE_COUNT * 4
-}
-
-
-template <>
-uint8_t* HeaderAndLoadCommandsAtom<ppc>::copyThreadsLoadCommand(uint8_t* p) const
-{
- assert(_state.entryPoint != NULL);
- pint_t start = _state.entryPoint->finalAddress();
- macho_thread_command<ppc::P>* cmd = (macho_thread_command<ppc::P>*)p;
- cmd->set_cmd(LC_UNIXTHREAD);
- cmd->set_cmdsize(threadLoadCommandSize());
- cmd->set_flavor(1); // PPC_THREAD_STATE
- cmd->set_count(40); // PPC_THREAD_STATE_COUNT;
- cmd->set_thread_register(0, start);
- if ( _options.hasCustomStack() )
- cmd->set_thread_register(3, _options.customStackAddr()); // r1
- return p + threadLoadCommandSize();
-}
-
-template <>
-uint32_t HeaderAndLoadCommandsAtom<ppc64>::threadLoadCommandSize() const
+template <typename A>
+uint8_t* HeaderAndLoadCommandsAtom<A>::copySourceVersionLoadCommand(uint8_t* p) const
{
- return this->alignedSize(16 + 76*4); // base size + PPC_THREAD_STATE64_COUNT * 4
+ macho_source_version_command<P>* cmd = (macho_source_version_command<P>*)p;
+ cmd->set_cmd(LC_SOURCE_VERSION);
+ cmd->set_cmdsize(sizeof(macho_source_version_command<P>));
+ cmd->set_version(_options.sourceVersion());
+ return p + sizeof(macho_source_version_command<P>);
}
-template <>
-uint8_t* HeaderAndLoadCommandsAtom<ppc64>::copyThreadsLoadCommand(uint8_t* p) const
-{
- assert(_state.entryPoint != NULL);
- pint_t start = _state.entryPoint->finalAddress();
- macho_thread_command<ppc::P>* cmd = (macho_thread_command<ppc::P>*)p;
- cmd->set_cmd(LC_UNIXTHREAD);
- cmd->set_cmdsize(threadLoadCommandSize());
- cmd->set_flavor(5); // PPC_THREAD_STATE64
- cmd->set_count(76); // PPC_THREAD_STATE64_COUNT;
- cmd->set_thread_register(0, start);
- if ( _options.hasCustomStack() )
- cmd->set_thread_register(3, _options.customStackAddr()); // r1
- return p + threadLoadCommandSize();
-}
template <>
uint32_t HeaderAndLoadCommandsAtom<x86>::threadLoadCommandSize() const
return p + threadLoadCommandSize();
}
+
+
+template <typename A>
+uint8_t* HeaderAndLoadCommandsAtom<A>::copyEntryPointLoadCommand(uint8_t* p) const
+{
+ macho_entry_point_command<P>* cmd = (macho_entry_point_command<P>*)p;
+ cmd->set_cmd(LC_MAIN);
+ cmd->set_cmdsize(sizeof(macho_entry_point_command<P>));
+ assert(_state.entryPoint != NULL);
+ pint_t start = _state.entryPoint->finalAddress();
+ if ( _state.entryPoint->isThumb() )
+ start |= 1ULL;
+ cmd->set_entryoff(start - this->finalAddress());
+ cmd->set_stacksize(_options.hasCustomStack() ? _options.customStackSize() : 0 );
+ return p + sizeof(macho_entry_point_command<P>);
+}
+
+
template <typename A>
uint8_t* HeaderAndLoadCommandsAtom<A>::copyEncryptionLoadCommand(uint8_t* p) const
{
}
+template <typename A>
+uint8_t* HeaderAndLoadCommandsAtom<A>::copyDataInCodeLoadCommand(uint8_t* p) const
+{
+ macho_linkedit_data_command<P>* cmd = (macho_linkedit_data_command<P>*)p;
+ cmd->set_cmd(LC_DATA_IN_CODE);
+ cmd->set_cmdsize(sizeof(macho_linkedit_data_command<P>));
+ cmd->set_dataoff(_writer.dataInCodeSection->fileOffset);
+ cmd->set_datasize(_writer.dataInCodeSection->size);
+ return p + sizeof(macho_linkedit_data_command<P>);
+}
+
+
+template <typename A>
+uint8_t* HeaderAndLoadCommandsAtom<A>::copyDependentDRLoadCommand(uint8_t* p) const
+{
+ macho_linkedit_data_command<P>* cmd = (macho_linkedit_data_command<P>*)p;
+ cmd->set_cmd(LC_DYLIB_CODE_SIGN_DRS);
+ cmd->set_cmdsize(sizeof(macho_linkedit_data_command<P>));
+ cmd->set_dataoff(_writer.dependentDRsSection->fileOffset);
+ cmd->set_datasize(_writer.dependentDRsSection->size);
+ return p + sizeof(macho_linkedit_data_command<P>);
+}
+
+
template <typename A>
void HeaderAndLoadCommandsAtom<A>::copyRawContent(uint8_t buffer[]) const
{
if ( _hasVersionLoadCommand )
p = this->copyVersionLoadCommand(p);
+ if ( _hasSourceVersionLoadCommand )
+ p = this->copySourceVersionLoadCommand(p);
+
if ( _hasThreadLoadCommand )
p = this->copyThreadsLoadCommand(p);
+
+ if ( _hasEntryPointLoadCommand )
+ p = this->copyEntryPointLoadCommand(p);
if ( _hasEncryptionLoadCommand )
p = this->copyEncryptionLoadCommand(p);
if ( _hasFunctionStartsLoadCommand )
p = this->copyFunctionStartsLoadCommand(p);
-
+
+ if ( _hasDataInCodeLoadCommand )
+ p = this->copyDataInCodeLoadCommand(p);
+
+ if ( _hasDependentDRInfo )
+ p = this->copyDependentDRLoadCommand(p);
+
}
projects / apple / ld64.git / blobdiff