X-Git-Url: https://git.saurik.com/apple/ld64.git/blobdiff_plain/a61fdf0a731e23ff7eb0cc86ba748fd9af5de879..c211e7c9adba556a05f8bddeafa72fa9fa87fe1b:/ChangeLog?ds=inline diff --git a/ChangeLog b/ChangeLog index 7a63394..ffe4190 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,7 +1,2422 @@ ------ Tagged ld64-77 +----- Tagged ld64-97.2 -2007-07-3 Nick Kledzik +2009-09-25 Nick Kledzik + + 'unknown DWARF EH encoding' message logged to console with clang-50 + + +----- Tagged ld64-97.1 + +2009-07-28 Nick Kledzik + + make better no-PIC branch island to thumb1 + * Add kBranchIslandNoPicToThumb1 as 8-byte no-PIC island + + +2009-07-20 Nick Kledzik + + section$start$__DATA$__bss can fail + * In SectionBoundaryAtom constructor make __bss and __common be zero-fill + * In AtomSorter, make sure end kSectionEnd sort after kTentativeDefinition + * unit-tests/test-cases/section-labels-zero-fill: add test cases + + +----- Tagged ld64-97 + +2009-07-13 Nick Kledzik + + empty dylib should have subtype from command line + In Linker::writeOutput() for ARM, set initial fCurrentCpuConstraint to be command line subtype + + +2009-07-09 Nick Kledzik + + crash when using -dead_strip and LTO with unresolved intrinsic + * In Linker::optimize() after final deadStripResolve() call checkUndefines() one last time + + +2009-07-09 Nick Kledzik + + ld64 can not find a -e entry point from an archive + * src/ld/ld.cpp: add searchArchives parameter to entryPoint() for use by deadStripResolve() + * unit-tests/test-cases/dead_strip-entry-archive: added test case + + +2009-07-08 Nick Kledzik + + __objc_classrefs section could be coalesced + * In machoReader, chop up __objc_classrefs section into pointer size atoms + and make each weak and hidden with a name based on its target name. + + +2009-06-26 Nick Kledzik + + "ld: symbol dyld_stub_binding_helper not defined" for xnu built with clang for x86_64 + * Fix relocationNeededInFinalLinkedImage() to say weak-defs don't require indirection in static executables + * Added unit-tests/test-cases/static-executable-weak-defines + + +2009-06-26 Nick Kledzik + + Error msg for missing -init symbol is misleading/unclear + * In Linker::checkUndefines() check all ways that the command line could add an undefined + and then search for close matches/typos. + + +2009-06-25 Nick Kledzik + + We need ld-symbol-moving-symbols for ARM/Embedded + * In mach_o::dylib::Reader::addSymbol() parse iPhoneOS version strings + * Update IPhoneVersionMin + + +2009-06-25 Nick Kledzik + + Linker makes subtype-zero file from empty subtype-nonzero file. + * In Linker::writeOutput() set inittal fCurrentCpuConstraint to be command line subtype + * Fix fArchitectureName to have arm sub-types + + +2009-06-24 Nick Kledzik + + ld should do a better job of reporting attempts to link directories + * In Options::buildSearchPaths() sanity check -L and -F options + + +2009-06-24 Nick Kledzik + + better error message when libLTO.dylib not loadable + * in Linker::createReader() provide detail error messages + + +----- Tagged ld64-96.10 + +2009-08-31 Nick Kledzik + + empty dylib has been __mh_dylib_header n_sect + * rework patch to use MinimalTextAtom to ensure there is always a __text section + + +----- Tagged ld64-96.9 + +2009-08-31 Nick Kledzik + + empty dylib has been __mh_dylib_header n_sect + * suppress __mh_dylib_header from symbol table if there is no __text section + + Implicitly add dyld_stub_binder to libSystem.dylib so iPhone clients can build + against SnowLeopard libSystem.dylib. + + +----- Tagged ld64-96.8 + +2009-08-30 Nick Kledzik + + SWB: gcc-5577.1 fails to build vecLib + + +----- Tagged ld64-96.7 + +2009-08-29 Nick Kledzik + + Linker makes subtype-zero file from empty subtype-nonzero file. + + +----- Tagged ld64-96.6 + +2009-07-30 Nick Kledzik + + ld: ldr 12-bit displacement out of range on SnowLeopard with gcc-5648 + * in Section::Section() set fIndex to ensure __symbolstub1 sorts to end of __TEXT segment + + +----- Tagged ld64-96.5 + +2009-07-28 Nick Kledzik + + Thumb mode compilation isn't working on 3.1 beta 2 + * Fix instructions used in kBranchIslandToThumb1 case + + +----- Tagged ld64-96.4 + +2009-06-22 Nick Kledzik + + platform linker should use platform ld_classic + * Fix Options::gotoClassicLinker() to use realpath()s + + +2009-06-22 Nick Kledzik + + * Fix Options::setIPhoneVersionMin() to handle 2.x through 9.x + + +----- Tagged ld64-96.3 + +2009-06-17 Nick Kledzik + + * Change section sorting so that arm and ppc stub section is immediately after __text section + + +2009-06-17 Nick Kledzik + + don't use no-PIC stubs in any dylibs - it might conflict with codesigning + * In StubAtom::StubAtom() don't use kStubNoPIC for OS dylibs + + +----- Tagged ld64-96.2 + +2009-06-09 Nick Kledzik + + * Back out page-cross branch work around + + +----- Tagged ld64-96.1 + +2009-06-05 Nick Kledzik + + * Fix "duplicate symbol cache-line-crossing-stub" error by giving placeholders unique names + * Fix -pie by allowing relocs in x86 stubs and stub helpers + + +----- Tagged ld64-96 + +2009-06-04 Nick Kledzik + + * Darwin x86_64 static codegen is really dynamic code gen, so use LTO_CODEGEN_PIC_MODEL_DYNAMIC + + +2009-06-03 Nick Kledzik + + use lto_codegen_set_assembler_path() + + +2009-06-03 Nick Kledzik + + * In src/ld/LTOReader.hpp, move where -save-temps .bc file is saved to be after code model set + + +2009-06-01 Nick Kledzik + + Link Time Optimization error with 'dead code strip' + hidden symbol + * scan newAtoms returned from optimize() looking for ones already in the symbol table + * add test case unit-tests/test-cases/lto-dead_strip-all-hidden + + +2009-05-19 Nick Kledzik + + make dyld stubs smaller/faster + * Add new addSynthesizedAtoms() method to Writer, called before atoms are sorted + * Fix throwf() and warning() to check printf types + * Add arm::kPointerDiff12 to support fast arm stubs + * Add new ContentType values for stubs and (non)lazy pointers + * Add new variant of arm stub this is one instruction + + +2009-05-13 Nick Kledzik + + * ld64.xcodeproj/project.pbxproj: add warnings to dyldinfo target + * src/other/dyldinfo.cpp: support classic LINKEDIT format + + +2009-05-12 Nick Kledzik + + * src/ld/MachOWriterExecutable.hpp: fix optimization to skip branch islands with ARM bl instructions + + +2009-05-12 Nick Kledzik + + creation of __unwind_info section can fail if hundreds of functions cannot be compact encoded + * src/ld/MachOWriterExecutable.hpp: fix when to make regular vs compressed pages + + +2009-05-08 Nick Kledzik + + * src/ld/ld.cpp: enhance -save-temps to also write out optimized bitcode file + + +2009-05-08 Nick Kledzik + + * src/ld/ld.cpp: fix -order_file_statistics to print each symbol not found and correct total + + +2009-05-08 Nick Kledzik + + linker should be able to coalesce UTF16 strings + * src/ld/MachOReaderRelocatable.hpp: parse __ustring section by labels but synthesize an + atom name based on the content. Leverage for __cfstring section + * unit-tests/test-cases/cfstring-utf16: update test case + + +2009-05-07 Nick Kledzik + + * src/ld/MachOWriterExecutable.hpp: put branch islands further apart if there is no thumb code + + +2009-05-07 Nick Kledzik + + LINKEDIT optimizations for iPhone + * src/ld/ObjectFile.h: Recognize iPhoneOS 3.1 + * src/ld/Options.cpp: iPhoneOS 3.1 => use compressed LINKEDIT + * src/ld/MachOWriterExecutable.hpp: support generating compressed LINKEDIT for arm + + +2009-05-04 Nick Kledzik + + Add linker support for ARM branch islands + Add labels to linker synthesized jump islands + * src/ld/MachOWriterExecutable.hpp: reworked BranchIslandAtom and createBranchIslands to support arm/thumb + * src/ld/ObjectFile.h: added kBranchIsland + * unit-tests/test-cases/branch-islands: updated test case to check arm/thumb + + +2009-04-30 Nick Kledzik + + * src/ld/Options.cpp: fix custom stack base address for arm + + +2009-04-30 Nick Kledzik + + likely incorrect warning about common symbols + * src/ld/Options.cpp: ignore LD_WARN_COMMONS in -r mode + + +----- Tagged ld64-95.8.3 + +2009-03-31 Nick Kledzik + + ld might set MH_WEAK_DEFINES when it should not + * src/ld/MachOWriterExecutable.hpp: rescan fRegularDefAtomsThatOverrideADylibsWeakDef and only consider global ones + + +----- Tagged ld64-95.8.2 + +2009-03-18 Nick Kledzik + + * src/ld/MachOReaderRelocatable.hpp: back out -force_cpusubtype_ALL changes + + +----- Tagged ld64-95.8.1 + +2009-03-17 Nick Kledzik + + -dead_strip inhibits weak coalescing in no_dead_strip section + * src/ld/ld.cpp: in markDead() remove from fLiveRootAtoms + + +2009-03-17 Nick Kledzik + + libgcc fails to build in with ld64-95.8 + * src/ld/MachOReaderRelocatable.hpp: interpret CPU_SUBTYPE_ARM_ALL as CPU_SUBTYPE_ARM_V4T + * src/ld/Options.cpp: interept -force_cpusubtype_ALL as -arch armv4t + + +----- Tagged ld64-95.8 + +2009-02-09 Nick Kledzik + + ld64-95.7 crashes building Foundation-678.39 in side build + * src/ld/MachOReaderRelocatable.hpp: handle a zero length section with a label before __cstring section + + +----- Tagged ld64-95.7 + +2009-02-06 Nick Kledzik + + * src/ld/ObjectFile.h: make fAddCompactUnwindEncoding false by default + + +2009-02-06 Nick Kledzik + + ER: add linker option to zero fill empty DATA sections on disk + * src/ld/Options.cpp: add support for -no_zero_fill_sections + * src/ld/MachOReaderRelocatable.hpp: isZeroFill() is only true if fOptimizeZeroFill + * doc/man/man1/ld.1: document -no_zero_fill_sections + * unit-tests/test-cases/no_zero_fill_sections: add test case + + +2009-02-05 Nick Kledzik + + label getting resolved to the wrong address. + * src/ld/MachOWriterExecutable.hpp: add findAtomAndOffsetForSection() and use it to disambiguate + * unit-tests/test-cases/label-on-end-of-section: added test case + + +2009-01-27 Nick Kledzik + + Warn -force_cpusubtype_ALL is not supported + * src/ld/Options.cpp: warn if fForceSubtypeAll and fArchitecture is CPU_TYPE_ARM + + +----- Tagged ld64-95.6 + +2009-01-25 Nick Kledzik + + Add support for section start/end labels + * src/ld/ObjectFile.h: add kSectionStart and kSectionEnd + * src/ld/MachOReaderRelocatable.hpp: create SectionBoundaryAtoms as needed + * src/ld/ld.cpp: sort SectionBoundaryAtoms correctly + * src/ld/MachOWriterExecutable.hpp: allow all relocations in preload images + + +----- Tagged ld64-95.5 + +2009-01-15 Nick Kledzik + + * src/ld/MachOWriterExecutable.hpp: in hasPageCrossingBranches() ignore branches preceeded by a branch + + +----- Tagged ld64-95.4 + +2009-01-15 Nick Kledzik + + * src/ld/Options.cpp: handle -kext and -r the same for fPreventPageCrossingBranches + + +----- Tagged ld64-95.3 + +2009-01-14 Nick Kledzik + + linker should alter layout to prevent armv7 page crossing branches + * src/ld/Options.cpp: set fPreventPageCrossingBranches + * src/ld/MachOWriterExecutable.hpp: adjust layout of __text so there are not page crossing branches + * src/ld/MachOReaderRelocatable.hpp: support new ARM_THUMB_32BIT_BRANCH reloce + + +----- Tagged ld64-95.2.10 + +2009-04-02 Nick Kledzik + + corrupt metaclass entry in dynamic library + * src/ld/ld.cpp: change Section constructor to copy segment and section names + + +----- Tagged ld64-95.2.9 + +2009-04-02 Nick Kledzik + + Update ld64 for new triples introduced in 6654669 to support ARM LLVM + * src/ld/LTOReader.hpp: change "arm-" to "arm" so matching works for new triples + + +----- Tagged ld64-95.2.8 + +2009-03-24 Nick Kledzik + + anonymous functions have the compact unwind info computed wrong + * ld/MachOReaderRelocatable.hpp: use new compact unwind function in AnonymousAtom + + +----- Tagged ld64-95.2.7 + +2009-03-11 Nick Kledzik + + AddressBook incorrectly gets _objc_msgSend from WebKit + * src/ld/MachOReaderDylib.hpp: fix processIndirectLibraries() to not force a private re-export of a dylib + that is already explictly or implicitly linked. + * unit-tests/test-cases/re-export-optimizations-indirect: add test case + + +2009-03-10 Nick Kledzik + + dyld weak linking optimization leaves some symbols unbound + * src/ld/MachOWriterExecutable.hpp: be sure to create bind entry for a reference + to a symbol in a dylib that is a weak definition + * unit-tests/test-cases/coalesce_weak_def_in_dylib: add test case + + +2009-03-10 Nick Kledzik + + many OS i386 OS dylibs still have __IMPORT segment + * ld/MachOReaderRelocatable.hpp: moved where __IMPORT/__pointer is changed to __DATA/__nl_symbol_ptr + * unit-tests/test-cases/stripped-indirect-symbol-table: updated to test for this problem + + +----- Tagged ld64-95.2.6 + +2009-02-27 Nick Kledzik + + ld might set MH_WEAK_DEFINES when it should not + * src/ld/MachOWriterExecutable.hpp: only consider atoms in fRegularDefAtomsThatOverrideADylibsWeakDef + that will be exported when computing MH_WEAK_DEFINES + * unit-tests/test-cases/operator-new: updated to reproduce issue + + +----- Tagged ld64-95.2.5 + +2009-02-24 Nick Kledzik + + x86_64 obj-c runtime confused when static lib is stripped + * src/ld/MachOWriterExecutable.hpp: in setLocalNlist() don't use 'l' labels for x86_64 strings + * unit-tests/test-cases/objc-literal-pointers-strip: added test case + + +----- Tagged ld64-95.2.4 + +2009-02-23 Nick Kledzik + + * src/ld/MachOReaderRelocatable.hpp: ignore ARM_THUMB_32BIT_BRANCH relocs + + +2009-02-18 Nick Kledzik + + Writer::symbolIndex() uses a linear search and does not scale + * src/ld/MachOWriterExecutable.hpp: build a std::map so symbolIndex() scales better + + +2009-02-18 Nick Kledzik + + Use new compact encodings that handle all register permutations + * src/ld/Architectures.hpp: add kSectionOffset24 + * src/ld/ObjectFile.h: add getFDE() + * src/ld/MachOReaderRelocatable.hpp: use new libunwind functions to get new compact encoding + * src/ld/MachOWriterExecutable.hpp: use new compact encoding which includes offset in dwarf if needed + * src/other/unwinddump.cpp: update unwinddump output to display register save set + + +2009-02-16 Nick Kledzik + + runtime error with bundle for 10.5 that has weak external symols + * src/ld/ld.cpp: fix hybrid (10.5) compressed linkedit info for data pointing to weak definitions + + +2009-02-15 Nick Kledzik + + i386 relocation error with negative offsets from local labels + * src/ld/MachOReaderRelocatable.hpp: handle when base addr of scattered relocation does not point to a label + * unit-tests/test-cases/relocs-neg-from-local: add test case + + +2009-02-12 Nick Kledzik + + -dead_strip inhibits weak coalescing in no_dead_strip section + * src/ld/ld.cpp: remove atoms coalesced away from fLiveRootAtoms + * unit-tests/test-cases/dead_strip-weak-coalesce: added test case + + +2009-02-12 Nick Kledzik + + x86_64 weak_import broken for initialized data + * src/ld/MachOReaderRelocatable.hpp: use isWeakImportSymbol() in Reader::addRelocReference() + * src/other/dyldinfo.cpp: update to display weak_import attribute + * unit-tests/test-cases/weak_import: updated test case + + +2009-02-06 Nick Kledzik + + ld parsing of __eh_frame unwind information is slow + * src/ld/MachOReaderRelocatable.hpp: build a std::map of all __eh_frame relocations for x86_64 + + +----- Tagged ld64-95.2.3 + +2009-02-04 Nick Kledzik + + ld: warning: can't add line info to anonymous symbol + * src/ld/MachOReaderRelocatable.hpp: don't warn about line info in dyld stubs + + +----- Tagged ld64-95.2.2 + +2009-02-02 Nick Kledzik + + ld -r does not preserve the N_NO_DEAD_STRIP bit + * src/ld/MachOWriterExecutable.hpp: set N_NO_DEAD_STRIP based on dontDeadStrip() + * unit-tests/test-cases/dead_strip-r_symbol_desc: added test case + + +----- Tagged ld64-95.2.1 + +----- Tagged ld64-95.2.10 + +2009-04-02 Nick Kledzik + + corrupt metaclass entry in dynamic library + * src/ld/ld.cpp: change Section constructor to copy segment and section names + + +----- Tagged ld64-95.2.9 + +2009-04-02 Nick Kledzik + + Update ld64 for new triples introduced in 6654669 to support ARM LLVM + * src/ld/LTOReader.hpp: change "arm-" to "arm" so matching works for new triples + + +----- Tagged ld64-95.2.8 + +2009-03-24 Nick Kledzik + + anonymous functions have the compact unwind info computed wrong + * ld/MachOReaderRelocatable.hpp: use new compact unwind function in AnonymousAtom + + +----- Tagged ld64-95.2.7 + +2009-03-11 Nick Kledzik + + AddressBook incorrectly gets _objc_msgSend from WebKit + * src/ld/MachOReaderDylib.hpp: fix processIndirectLibraries() to not force a private re-export of a dylib + that is already explictly or implicitly linked. + * unit-tests/test-cases/re-export-optimizations-indirect: add test case + + +2009-03-10 Nick Kledzik + + dyld weak linking optimization leaves some symbols unbound + * src/ld/MachOWriterExecutable.hpp: be sure to create bind entry for a reference + to a symbol in a dylib that is a weak definition + * unit-tests/test-cases/coalesce_weak_def_in_dylib: add test case + + +2009-03-10 Nick Kledzik + + many OS i386 OS dylibs still have __IMPORT segment + * ld/MachOReaderRelocatable.hpp: moved where __IMPORT/__pointer is changed to __DATA/__nl_symbol_ptr + * unit-tests/test-cases/stripped-indirect-symbol-table: updated to test for this problem + + +----- Tagged ld64-95.2.6 + +2009-02-27 Nick Kledzik + + ld might set MH_WEAK_DEFINES when it should not + * src/ld/MachOWriterExecutable.hpp: only consider atoms in fRegularDefAtomsThatOverrideADylibsWeakDef + that will be exported when computing MH_WEAK_DEFINES + * unit-tests/test-cases/operator-new: updated to reproduce issue + + +----- Tagged ld64-95.2.5 + +2009-02-24 Nick Kledzik + + x86_64 obj-c runtime confused when static lib is stripped + * src/ld/MachOWriterExecutable.hpp: in setLocalNlist() don't use 'l' labels for x86_64 strings + * unit-tests/test-cases/objc-literal-pointers-strip: added test case + + +----- Tagged ld64-95.2.4 + +2009-02-23 Nick Kledzik + + * src/ld/MachOReaderRelocatable.hpp: ignore ARM_THUMB_32BIT_BRANCH relocs + + +2009-02-18 Nick Kledzik + + Writer::symbolIndex() uses a linear search and does not scale + * src/ld/MachOWriterExecutable.hpp: build a std::map so symbolIndex() scales better + + +2009-02-18 Nick Kledzik + + Use new compact encodings that handle all register permutations + * src/ld/Architectures.hpp: add kSectionOffset24 + * src/ld/ObjectFile.h: add getFDE() + * src/ld/MachOReaderRelocatable.hpp: use new libunwind functions to get new compact encoding + * src/ld/MachOWriterExecutable.hpp: use new compact encoding which includes offset in dwarf if needed + * src/other/unwinddump.cpp: update unwinddump output to display register save set + + +2009-02-16 Nick Kledzik + + runtime error with bundle for 10.5 that has weak external symols + * src/ld/ld.cpp: fix hybrid (10.5) compressed linkedit info for data pointing to weak definitions + + +2009-02-15 Nick Kledzik + + i386 relocation error with negative offsets from local labels + * src/ld/MachOReaderRelocatable.hpp: handle when base addr of scattered relocation does not point to a label + * unit-tests/test-cases/relocs-neg-from-local: add test case + + +2009-02-12 Nick Kledzik + + -dead_strip inhibits weak coalescing in no_dead_strip section + * src/ld/ld.cpp: remove atoms coalesced away from fLiveRootAtoms + * unit-tests/test-cases/dead_strip-weak-coalesce: added test case + + +2009-02-12 Nick Kledzik + + x86_64 weak_import broken for initialized data + * src/ld/MachOReaderRelocatable.hpp: use isWeakImportSymbol() in Reader::addRelocReference() + * src/other/dyldinfo.cpp: update to display weak_import attribute + * unit-tests/test-cases/weak_import: updated test case + + +2009-02-06 Nick Kledzik + + ld parsing of __eh_frame unwind information is slow + * src/ld/MachOReaderRelocatable.hpp: build a std::map of all __eh_frame relocations for x86_64 + + +----- Tagged ld64-95.2.3 + +2009-02-04 Nick Kledzik + + ld: warning: can't add line info to anonymous symbol + * src/ld/MachOReaderRelocatable.hpp: don't warn about line info in dyld stubs + + +----- Tagged ld64-95.2.2 + +2009-02-02 Nick Kledzik + + ld -r does not preserve the N_NO_DEAD_STRIP bit + * src/ld/MachOWriterExecutable.hpp: set N_NO_DEAD_STRIP based on dontDeadStrip() + * unit-tests/test-cases/dead_strip-r_symbol_desc: added test case + + +----- Tagged ld64-95.2.1 + +2009-01-29 Nick Kledzik + + gcc DejaGnu failure: building longcall/dylib library + * src/ld/MachOWriterExecutable.hpp: if no __DATA sections insert non-lazy pointers at end of __TEXT segment + * unit-tests/test-cases/no-data-bundle: added test case + + +----- Tagged ld64-95.2 + +2009-01-06 Nick Kledzik + + strip -S fails with "new trie is larger than original" + * src/other/PruneTrie.cpp: don't align trie more than original trie was aligned + + +----- Tagged ld64-95.1 + +2008-12-21 Nick Kledzik + + * src/ld/MachOWriterExecutable.hpp: in new linkedit format, make sure only exported symbols + make it into weak binding info + + +----- Tagged ld64-95 + +2008-12-18 Nick Kledzik + + * src/ld/Options.cpp: move check for fSharedRegionEligible until fPrebind has stabilized + + +2008-12-18 Nick Kledzik + + Generate new compressed LINKEDIT when targeting 10.6 + * src/ld/Options.cpp: turn on compressed LINKEDIT by default + + +----- Tagged ld64-94.1 + +2008-12-16 Nick Kledzik + + * src/ld/Options.cpp: Fix -F handling in buildSearchPaths() + + +----- Tagged ld64-94 + +2008-12-15 Nick Kledzik + + * doc/man/man1/ld.1: document new options + + +2008-12-15 Nick Kledzik + + linker should enforce all .o files have same sub-type, and ignore sub-type of dylibs + * doc/man/man1/ld.1: update man page about -allow_sub_type_mismatches + * src/ld/ld.cpp: call validFile() with new arguments + * src/ld/MachOReaderRelocatable.hpp: add new arguments to validFile() + * src/ld/Options.cpp: Support LD_ALLOW_CPU_SUBTYPE_MISMATCHES and -allow_sub_type_mismatches + + +2008-12-15 Nick Kledzik + + -syslibroot should skip standard search paths not in the SDK + * src/ld/Options.cpp: in buildSearchPaths() if an SDK is specified don't add + standard search paths not in the SDK. + + +2008-12-15 Nick Kledzik + + ld: remove "can't make compact unwind encoding" warning + * src/ld/ObjectFile.h: add fWarnCompactUnwind + * src/ld/Options.cpp: -warn_compact_unwind --> fWarnCompactUnwind + * src/ld/MachOReaderRelocatable.hpp: test fWarnCompactUnwind before warning + + +2008-12-15 Nick Kledzik + + Add dtrace usdt support for arm to ld64 + * src/ld/MachOWriterExecutable.hpp: handle arm::kDtraceIsEnabledSite + * unit-tests/test-cases/dtrace-static-probes: use is-enabled in test case + + +----- Tagged ld64-93 + +2008-12-11 Nick Kledzik + + * src/ld/ObjectFile.h: add fIPhoneVersionMin to track min iPhoneOS version + * src/ld/Options.cpp: use fIPhoneVersionMin + + +2008-12-11 Nick Kledzik + + non-lazy pointer to non-global tentative definition encoded wrong + * src/ld/MachOWriterExecutable.hpp: don't use INDIRECT_SYMBOL_LOCAL for tentative definitions + * unit-tests/test-cases/non-lazy-r: updated test case + + +2008-12-11 Nick Kledzik + + kernel fails to boot when ld64 used for intermediate ld -r step + * src/ld/MachOWriterExecutable.hpp: in -r mode when generating a scattered sect-diff reloc for + i386/arm, special case when from target is not the atom + the relocation is in. + * unit-tests/test-cases/relocs-asm: update test case + + +2008-12-11 Nick Kledzik + + * src/ld/ld.cpp: handle new __program_vars section + * src/ld/MachOWriterExecutable.hpp: handle inserting synthesized sections when there is no __dyld section + + +2008-12-11 Nick Kledzik + + * src/ld/MachOReaderRelocatable.hpp: Fix getDescription() to work when direct reference is to anonymous atom + + +2008-12-10 Nick Kledzik + + * src/ld/Options.cpp: enable LD_FORCE_NO_PREBIND to be used with arm + + +2008-12-10 Nick Kledzik + + Developer tool to print the new compressed LINKEDIT information + * src/other/dyldinfo.cpp: fix typo in usage() + + +2008-12-05 Nick Kledzik + + SnowLeopard kernel should compile warning free + * src/ld/MachOReaderRelocatable.hpp: correct parse two global labels at end of section and make one an alias + * unit-tests/test-cases/end-label: update test case + + +2008-12-04 Nick Kledzik + + Better warning than "PPC_RELOC_JBSR should not be using an external relocation" + * src/ld/MachOReaderRelocatable.hpp: issue warning with .o path if it was compiled with -mlong-branch + + +2008-12-04 Nick Kledzik + + linker should not map __pointers -> __nl_symbol_ptr unless actually making new LINKEDIT + * src/ld/ObjectFile.h: add fMakeCompressedDyldInfo for readers to see + * src/ld/Options.cpp: set fMakeCompressedDyldInfo for readers to see + * src/ld/MachOReaderRelocatable.hpp: check fMakeCompressedDyldInfo + + +2008-12-02 Nick Kledzik + + * src/ld/debugline.c: fix error handling in line_open() + + +2008-11-26 Nick Kledzik + + vtable with thumb entries broke after ld -r + * src/ld/MachOReaderRelocatable.hpp: if target of reloc is thumb, mask thumb bit off addend + * unit-tests/test-cases/thumb-pointer: added test case + + +2008-11-26 Nick Kledzik + + * src/ld/Option.cpp: Fix how crashreporterBuffer is created to not miss some arguments + + +2008-11-24 Nick Kledzik + + Security.framework has some duplicate FDEs for some functions + * src/ld/ld.cpp: remove fDeadAtoms from fLiveAtoms when there are weak atoms overriden by late loads + * unit-tests/test-cases/dead_strip-archive-eh: added test case + + +----- Tagged ld64-92 + +2008-11-21 Nick Kledzik + + * src/ld/MachOReaderDylib.hpp: if export_size is zero, no need to parse trie + * src/abstraction/MachOTrie.hpp: gracefully handle empty trie + + +2008-11-21 Nick Kledzik + + strip(1) support for new compressed LINKEDIT information + * ld64.xcodeproj/project.pbxproj: build and install new libprunetrie.a + * src/other/prune_trie.h: added + * src/other/PruneTrie.cpp: implements prune_trie() + + +2008-11-21 Nick Kledzik + + * src/ld/ld.cpp: if an export file is used and all weak symbols are masked, don't set WEAK_DEFINES + * unit-tests/test-cases/weak-def-flag: added test case + + +2008-11-20 Nick Kledzik + + Generate new compressed LINKEDIT when targeting 10.6 + * src/ld/MachOWriterExecutable.hpp: support generating new compressed format + * src/ld/MachOReaderRelocatable.hpp: new compress format implies non-lazy pointers in __DATA for i386 + * src/ld/MachOReaderDylib.hpp: support linking aginst new format + * src/ld/Options.cpp: suppport -exported_symbols_order and -no_compact_linkedit + * src/ld/ld.cpp: track which atoms have weak counter parts in dylibs + * src/other/dyldinfo.cpp: added tool to display new LINKEDIT format + * ld64.xcodeproj/project.pbxproj: add dyldinfo tool + * unit-tests/*: lots of fixes to work with new format + + +2008-11-20 Nick Kledzik + + ld64 should preserve N_WEAK_REF when linking MH_KEXT_BUNDLEs + * src/ld/MachOWriterExecutable.hpp: set up fWeakImportMap in synthesizeKextGOT() + + +2008-11-19 Nick Kledzik + + VideoToolbox.framework has bad __TEXT.__eh_frame info + * src/ld/Options.cpp: add -no_eh_labels option for use with -r + * src/ld/MachOWriterExecutable.hpp: generate correct x86_64 labeless relocs in -r mode + * src/ld/MachOReaderRelocatable.hpp: now ignore all labels and relocations in + __TEXT/__eh_frame section and rely on getCFIs() from libunwind + * unit-tests/test-cases/eh-coalescing-no-labels: add test case + + +2008-11-19 Nick Kledzik + + LTO doesn't like dtrace symbols + * src/ld/LTOReader.hpp: ignore __dtrace_probe undefines in bitcode files + + +2008-11-14 Nick Kledzik + + * src/abstraction/MachOFileAbstraction.hpp: fix to work with 10.5 headers + + +----- Tagged ld64-91 + +2008-11-07 Nick Kledzik + + Remove COMPACT_UNWIND_SUPPORT conditionalizing + + +2008-11-06 Nick Kledzik + + Reorganize source layout. ld sources are now in "ld", + and other tools are in "other". + + +2008-11-05 Nick Kledzik + + * ld64.xcodeproj/project.pbxproj: start installing unwinddump tool + * src/UnwindDump.cpp: support -arch option + * doc/man/man1/unwinddump.1: create man page + + +2008-11-05 Nick Kledzik + + linker should put cpusubtype in n_sect field of nlist entry for N_OSO debug note entries + * src/ld.cpp: in synthesizeDebugNotes() set other field of OSO to be subtype + + +2008-11-05 Nick Kledzik + + Need a linker option to load all objects from one library + * src/Options.cpp: support -force_load option + * src/ArchiveReader.hpp: Add fForceLoad ivar + * doc/man/man1/ld.1: update man page with -force_load option + * unit-tests/test-cases/archive-force-load: add test case + + +2008-11-05 Nick Kledzik + + Dtrace Probe Warnings: SnowLeopard kernel should compile warning free + * src/ld.cpp: don't generate GSYM stabs for old style __dtrace_probe + * src/MachOReaderRelocatable.hpp: fix test for deciding if a symbol is an alias + + +2008-11-04 Nick Kledzik + + ADOBE: XCODE: ld: duplicate typeinfo in executable + * src/ld.cpp: in dead-strip mode, record overriden symbols and later rebind all uses + * unit-tests/test-cases/dead_strip-archive-weak: add test case + + +2008-11-03 Nick Kledzik + + support increased branch range in Thumb-2 + * src/MachOReaderRelocatable.hpp: handle full branch range in addRelocReference() + * unit-tests/test-cases/branch-distance: added test case + +2008-10-31 Devang Patel + + Sqlite 3.5.4 built with lvm-gcc-4.2 -O4 fails regression test + * src/LTOReader.hpp: Use real atom scope when real atom is available. + Preserve globals while optimizing an executable. + +2008-10-30 Nick Kledzik + + * src/MachOReaderRelocatable.hpp: support all encodings in getEncodedP() + + +----- Tagged ld64-90 + +2008-10-30 Nick Kledzik + + icc has dwarf unwind info that is different than gcc + * src/MachOReaderRelocatable.hpp: support more encodings in getEncodedP() + + +2008-10-23 Nick Kledzik + + build ld64 for x86_64 + * ld64.xcodeproj/project.pbxproj: add X86_64 to valid archs + + +2008-10-23 Nick Kledzik + + * ld64.xcodeproj/project.pbxproj: use generated @$(DERIVED_FILE_DIR)/linker_opts for extra + linker options. This allows linker to be built if LTO headers and libs are missing. + + +2008-10-23 Nick Kledzik + + Linker warning not shown in the Xcode build log + * src/Options.cpp: add colon to format string in warning() + + +----- Tagged ld64-89.3 + +2008-10-24 Nick Kledzik + + ld64-89 broke TOT OpenGL libProgrammability x86_64 build + * src/MachOReaderRelocatable.hpp: add cast in getEncodedP() + + +----- Tagged ld64-89.2 + +2008-10-23 Nick Kledzik + + SnowLeopard: Libsystem built with ld64-89.1 causes crashes + * src/MachOReaderRelocatable.hpp: when FDE information causes __text atom to be split, make the + atoms follow-on pairs. + + +----- Tagged ld64-89.1 + +2008-10-22 Nick Kledzik + + * src/MachOReaderRelocatable.hpp: for x86_64 __eh_frame force direct references + + +2008-10-21 Nick Kledzik + + * src/ObjectDump.cpp: Use getContentType() to see if content type is a cstring + + +----- Tagged ld64-89 + +2008-10-21 Nick Kledzik + + 10A180 with QT-1119 roots: iTunes and QuickTime cannot play back purchased videos + linker should not need .eh labels + * src/MachOWriterExecutable.hpp: use kCFIType to set section attributes + * src/MachOReaderRelocatable.hpp: use libunwind's CFITuple to parse __eh_frame content + * src/ld.cpp: Add adjustScope() phase instead of demoting scope within symboltable.add() + * unit-tests/test-cases/eh-stripped-symbols: added test case + + +----- Tagged ld64-88.1 + +2008-10-16 Nick Kledzik + + * src/MachOReaderRelocatable.hpp: Fix uses of COMPACT_UNWIND_SUPPORT + * src/MachOWriterExecutable.hpp: Fix uses of COMPACT_UNWIND_SUPPORT + + +2008-09-30 Nick Kledzik + + OBJC2: Reorder __DATA,__objc_* sections by writedness + * src/ld.cpp: change sorting order of Sections + + +2008-09-29 Nick Kledzik + + Executable produced by XCode 3.2 on 10.6 crashes on 10.3.9 + * src/MachOWriterExecutable.hpp: set objc_module_info_addr field of module table + + +----- Tagged ld64-88 + +2008-09-25 Nick Kledzik + + kexts need to be built as MH_BUNDLE mach-o files + * src/ld.cpp: use getUndefinedProxyAtom() with kKextBundle + * src/MachOFileAbstraction.hpp: add MH_KEXT_BUNDLE + * src/Options.cpp: support -kext for all architectures + * src/MachOWriterExecutable.hpp: support kKextBundle to make a bundle like kext + * unit-tests/test-cases/kext-basic: added test case + + +2008-09-25 Nick Kledzik + + ld invoking wrong ld_classic + * src/Options.cpp: first look for ld_classic relative to ld itself + + +2008-09-25 Nick Kledzik + + ld fails to link references from 32 bit code into 64 bit code + Desired 32-bit absolute relocation + * src/Architectures.hpp: add x86_64::kPointer32 + * src/MachOReaderRelocatable.hpp: support X86_64_RELOC_UNSIGNED with length=2 + * src/MachOWriterExecutable.hpp: support x86_64::kPointer32 + * unit-tests/test-cases/relocs-asm/relocs-asm.s: added 32-bit pointer tests + + +2008-09-25 Nick Kledzik + + Should be able to mark dylibs as auto-dead-dylib-strip + * src/Options.h: add fMarkDeadStrippableDylib + * src/MachOReaderDylib.hpp: check MH_DEAD_STRIPPABLE_DYLIB + * src/ObjectFile.h: add deadStrippable() + * src/MachOFileAbstraction.hpp: add MH_DEAD_STRIPPABLE_DYLIB + * src/Options.cpp: support -mark_dead_strippable_dylib + * src/MachOWriterExecutable.hpp: test reader->deadStrippable(), set MH_DEAD_STRIPPABLE_DYLIB + * doc/man/man1/ld.1: update man page + * unit-tests/test-cases/dead_strippable_dylib: added test case + + +2008-09-25 Nick Kledzik + + ER: Add -seg_page_size option + * src/Options.cpp: add -seg_page_size option + * src/MachOWriterExecutable.hpp: use new page size info when laying out segments + * doc/man/man1/ld.1: update man page + + +2008-09-24 Nick Kledzik + + -arch_errors_fatal not working + * src/ld.cpp: check fOptions.errorOnOtherArchFiles() + * src/Options.cpp: turn -arch_errors_fatal into fOptions.errorOnOtherArchFiles() + + +2008-09-24 Nick Kledzik + + CrashTracer: [USER] 1 crash in ld at ld: 0x5ce02 + * src/ld.cpp: abort if resolve() finds an unresolved reference, rather than allow a future crash + + +2008-09-24 Nick Kledzik + + linker crashes linking X86-64 with -fwritable-strings + * src/MachOReaderRelocatable.hpp: handle unbound cfstring references + * unit-tests/test-cases/cfstring-coalesce: update test case + + +2008-09-24 Nick Kledzik + + ld64: bl out of range (-17147704 max is +/-16M) on ppc + * src/MachOWriterExecutable.hpp: tweak branch island regions to be every 14MB instead of 15MB + + +2008-09-24 Nick Kledzik + + -filelist fails with comma in path + * src/Options.cpp: in loadFileList() first try without special comma meaning + * unit-tests/test-cases/filelist/Makefile: update test case + + +2008-09-23 Nick Kledzik + + nop not used when aligning functions in -r mode + * src/MachOWriterExecutable.hpp: change check for when to pad with nops to not test segment's name + + +2008-09-23 Nick Kledzik + + "-pie can only be used when linking a main executable" should be a warning, not an error + * src/Options.cpp: make -pie on a dylib or bundle be a warning instead of an error + + +2008-09-23 Nick Kledzik + + * src/MachOReaderRelocatable.hpp: add warning if dwarf cannot be encoded as compact unwind + + +2008-09-18 Nick Kledzik + + * src/LTOReader.hpp: re-enable use of lto_codegen_debug_options() + + +2008-09-16 Nick Kledzik + + ld does not always set S_CSTRING_LITERALS on __TEXT,__cstring + * src/MachOReaderRelocatable.hpp: add getContentType() to SymbolAtom + * src/MachOWriterExecutable.hpp: for x86_64 don't override named cstrings with LC* name + + +2008-09-10 Nick Kledzik + + * Options.cpp: add __crashreporter_info__ to communicate command line to crash reporter + * ld64.xcodeproj/project.pbxproj: leave local symbols in ld to provide better crash reports + + +2008-09-08 Nick Kledzik + + 161569 GCC 4.2 - breakpoints no longer work for a large number of functions + * src/MachOReaderRelocatable.hpp: support DW_FORM_strp out-of-line strings when parsing line table + + +2008-09-02 Nick Kledzik + + * src/MachOReaderRelocatable.hpp: fix compact unwind personality for dyld and -slow_stubs + + +2008-08-29 Nick Kledzik + + -weak_library no longer forces uses to be weak_import + * src/MachOWriterExecutable.hpp: use fWeakImport on dylib to force proxy atoms into fWeakImportMap + * unit-tests/test-cases/weak_import-force: added test case + + +2008-08-29 Nick Kledzik + + linker should order __DATA segment to reduce dyld dirtied pages + * src/Options.cpp: add fOrderData and support -no_data_order + * src/ld.cpp: modify tweakLayout() to sort atoms with relocations to start of __data section + + +2008-08-27 Nick Kledzik + + * src/Options.cpp: back out + + +----- Tagged ld64-87.5 + +2008-08-26 Nick Kledzik + + some projects show _Unwind_Resume coming from libSystem.B.dylib + * src/Options.cpp: swap any early symlinks to libSystem with libgcc_s + + +----- Tagged ld64-87.4 + +2008-08-25 Nick Kledzik + + some projects show _Unwind_Resume coming from libSystem.B.dylib + * src/Options.cpp: swap any early libSystem with libgcc_s + + +2008-08-15 Nick Kledzik + + Unable to build ppc debug builds (linker out of range error) + * src/MachOWriterExecutable.hpp: in addPPCBranchIslands() look ahead so large atoms don't push out branch islands + + +----- Tagged ld64-87.3.1 + +2008-09-08 Nick Kledzik + + i386 dylibs have incorrect personality pointers when put in dyld shared cache + * src/MachOWriterExecutable.hpp: in addCrossSegmentRef() handle kImageOffset32 to __IMPORT segment + + +----- Tagged ld64-87.3 + +2008-08-09 Nick Kledzik + + work around compiler gcc_except_table alignment + * src/ObjectFile.h: change getLSDA() to return a reference instead of an atom + * src/MachOReaderRelocatable.hpp: special case __eh_frame 64-bit pointer diff relocations + * src/MachOWriterExecutable.hpp: track lsda offset when creating __unwind_info section + * src/UnwindDump.cpp: log when LDSA content does not start with 0xFF + +----- Tagged ld64-87.2 + +2008-08-07 Nick Kledzik + + 10A141: libuwind falls back to dwarf and makes whole system super slow + * src/MachOWriterExecutable.hpp: Fix sign extension bug with x86_64::kPointerDiff24 + * src/UnwindDump.cpp: warn about mangled LSDA entries when dumping unwind section + + +----- Tagged ld64-87.1 + +2008-08-03 Nick Kledzik + + * src/LTOReader.hpp: Don't use lto_codegen_debug_options until newer libLTO.dylib is available + + +----- Tagged ld64-87 + +2008-07-21 Nick Kledzik + + * src/Options.cpp: Always set fAutoOrderInitializers=false for dyld + + +2008-07-21 Nick Kledzik + + * src/MachOWriterExecutable.hpp: fix when regular vs compressed __unwind_info pages are generated + * src/UnwindDump.cpp: fix function name decoding in regular pages + + +2008-07-21 Nick Kledzik + + * ld64.xcodeproj/project.pbxproj: don't allow ld to build for x86_64 until libdtrace.dylib is available + + +2008-07-18 Nick Kledzik + + * src/MachOReaderRelocatable.hpp: don't crash if debug_line section has no line table + + +2008-07-18 Nick Kledzik + + Duplicate probe firings in Security.framework + * src/LTOReader.hpp: optimize() now returns atoms optimized away + * src/ObjectFile.h: optimize() should return if it did anything + * src/ArchiveReader.hpp: pass through optimize() result + * src/ld.cpp: rework dtrace probe processing as a new pass to prevent double counting + + +2008-07-15 Nick Kledzik + + automatically order initializers to start of __TEXT + * src/Options.cpp: add -no_order_inits option + * src/MachOReaderRelocatable.hpp: merge __StaticInit into __text + * src/ObjectFile.h: add fAutoOrderInitializers + * src/ld.cpp: sort initializer to start of __text and terminators to end + * doc/man/man1/ld.1: add doc about -no_order_inits + * unit-tests/test-cases/init-order: add test case + +2008-07-15 Nick Kledzik + + Only add LC_SEGMENT_SPLIT_INFO to dylibs that might be in the shared cache + * src/MachOWriterExecutable.hpp: re-layout load commands after split-seg data computed + * src/Options.cpp: non-public install name will disable split-seg load command + + +2008-07-14 Nick Kledzik + + ld -r for x86_64 is changing visibility of cstring constants + * src/MachOWriterExecutable.hpp: force x86_64 cstring labels to be local in -r mode + * unit-tests/test-cases/cstring-label: added test case + + +2008-07-11 Nick Kledzik + + ld not adding updating LC_SEGMENT_SPLIT_INFO with __unwind_info section + * src/MachOWriterExecutable.hpp: run createSplitSegContent() after __unwind_info section is created + +2008-07-10 Nick Kledzik + + * src/LTOReader.hpp: improve missing symbol error message + + +2008-07-09 Nick Kledzik + + linker should order __DATA segment to reduce dyld dirtied pages + * src/ld.cpp: first phase, order sections + + +2008-07-08 Nick Kledzik + + * src/MachOReaderRelocatable.hpp: remove "coal" sections when creating a final linked image + + +2008-07-08 Nick Kledzik + + ld: add support for mllvm LTO options + * src/Options.cpp: support -mllvm option + * src/LTOReader.hpp: call lto_codegen_debug_options() with -mllvm options + * src/ld.cpp: pass llvmOptions to optimize() + * src/Options.h: add fLLVMOptions + * src/ArchiveReader.hpp: add llvmOptions parameter to optimize() + * src/ObjectFile.h: add llvmOptions parameter to optimize() + * unit-tests/test-cases/lto-llvm-options: add test case + + +2008-07-07 Nick Kledzik + + Linker fails with: 24-bit pointer diff out of range in unwind info in unwind info from... + * src/MachOWriterExecutable.hpp: fix when to fallback to uncompressed unwind info + + +2008-07-03 Nick Kledzik + + ld crash with gcc-4.0 code that uses a zero sized array + * src/MachOReaderRelocatable.hpp: handle zero size atom in a zero sized section + + +2008-07-03 Nick Kledzik + + ld crashes when bad ppc relocs are found + * src/MachOReaderRelocatable.hpp: change all missing PAIR warnings to errors + + +2008-07-02 Nick Kledzik + + when linking a kext the static linker should leave a pad in the headers to allow code signing + * src/MachOWriterExecutable.hpp: add padding for load commands in object files + * unit-tests/test-cases/code-signed-object-file: added test case + + +2008-07-02 Nick Kledzik + + LC_SEGMENT_64 filesize incorrect for MH_OBJECT filetype + * src/MachOWriterExecutable.hpp: correctly set segment size info in object files + * unit-tests/test-cases/no-object-symbols: add test case + + +2008-06-26 Nick Kledzik + + * ld64.xcodeproj/project.pbxproj: enable ld and rebase targets to build for x86_64 + * src/rebase.cpp: remove unused fRelocBase field that was not 64-bit clean + * src/MachOReaderRelocatable.hpp: fix getEncodedP() to be 64-bit clean + + +----- Tagged ld64-86.3 + +2008-06-17 Nick Kledzik + + * src/ld.cpp: fix loadUndefines() to double check undefine symbol was not already loaded + + +----- Tagged ld64-86.2 + +2008-06-14 Nick Kledzik + + * srd/ld.cpp: Add NULL check in getTentativesNames() + + +----- Tagged ld64-86.1 + +2008-06-06 Nick Kledzik + + * src/MachOWriterExecutable.hpp: fix header padding calculation for dyld + + +----- Tagged ld64-86 + +2008-06-04 Nick Kledzik + + * src/LTOReader.hpp: if lto_codegen_add_module() fails, add explanation to error message + + +2008-06-04 Nick Kledzik + + * src/ObjectFile.h: add deadAtoms parameter to optimize() + * src/ld.cpp: ditto + * src/ArchiveReader.hpp: ditto + * src/MachOReaderRelocatable.hpp: handle llvm use of 0x1B pointer encodings in CIEs + * src/LTOReader.hpp: make sure libLTO.dylib knows about any llvm symbol coalesced away + * unit-tests/test-cases/lto-weak-native-override: add test case + + +2008-06-04 Nick Kledzik + + LTO : 176.gcc and 177.mesa build failure at -O4 + * src/LTOReader.hpp: make sure internal is returned by getAtoms() + * unit-tests/test-cases/lto-archive-dylib: update test case + + +2008-06-03 Nick Kledzik + + fix for 5613343 need to search for definitions for common symbols is broken + * src/ld.cpp: modify loadUndefines() to check for undefines in all files and tentative definitions but only in archives + * src/machochecker.cpp: check for undefine symbols and external symbols with same name + * unit-tests/test-cases/tentative-and-archive: update test case + + +2008-06-03 Nick Kledzik + + linker produces wrong result for 16-bit call relocations + * src/MachOReaderRelocatable.hpp: properly parse i386 scattered relocs for word sized pc-rel vanilla + * src/MachOWriterExecutable.hpp: propery compute displacement for x86::kPCRel16 + * unit-tests/test-cases/relocs-asm: update test case with callw instructions + + +2008-06-03 Nick Kledzik + + Building kext x86_64 with unexported symbols file causes linking problems + * src/MachOWriterExecutable.hpp: better check when creating undefined proxy atoms + * unit-tests/test-cases/unexported_symbols_list-r: added test case + + +2008-06-02 Nick Kledzik + + S_CSTRING_LITERALS section type not preserved in executable + * src/ObjectFile.h: added ContentType + * src/MachOReaderRelocatable.hpp: set ContentType for anonymous string literals + * src/MachOWriterExecutable.hpp: set S_CSTRING_LITERALS if ContentType is kCStringType + * unit-tests/test-cases/cstring-custom-section: added test case + + +2008-06-02 Nick Kledzik + + linker should produce __unwind_info section in final linked images + * src/ld.cpp: sort __unwind_info then __eh_frame section to end of __TEXT + * src/Architectures.hpp: add kImageOffset32 and kPointerDiff24 + * src/ObjectFile.h: add compact unwind info support + * src/MachOReaderRelocatable.hpp: add compact unwind info support + * src/MachOFileAbstraction.hpp: add C++ wrappers for unwind section layout + * src/UnwindDump.cpp: new tool for dumping __unwind_info section + * src/MachOWriterExecutable.hpp: create __unwind_info section when needed + * src/ObjectDump.cpp: print unwind info + + +2008-06-02 Nick Kledzik + + * unit-tests/test-cases/llvm-integration: split out some test cases + * unit-tests/test-cases/lto-preload-pie: added + * unit-tests/test-cases/lto-archive-dylib: added + + +2008-05-30 Nick Kledzik + + * unit-tests: fixes to build all tests with with gcc-4.2 on SnowLeopard + + +2008-05-30 Nick Kledzik + + support -preload option to generate MH_PRELOAD binaries compatible with mtoc(1) and EFI + * src/ld.cpp: add entryPoint parameter to optimize() + * src/ArchiveReader.hpp: ditto + * src/ObjectFile.h: ditto + * src/LTOReader.hpp: use entryPoint parameter to optimize() + * src/Options.h: add kPreload and segment alignment + * src/Options.cpp: support -preload and -segalign + * src/MachOWriterExecutable.hpp: support kPreload and non-page aligned segments + + +2008-05-30 Nick Kledzik + + ld should warn if passed -r and also dylibs + * src/ld.cpp: check for spurious dylibs in Linker::addDylib() + + +----- Tagged ld64-85.6 + +2008-11-01 Nick Kledzik + + support increased branch range in Thumb-2 + * src/MachOWriterExecutable.hpp: in fixUpReferenceFinal() support new longer branch range + + +2008-11-01 Nick Kledzik + + ld warning: unknown option to -iphoneos_version_min, not 1.x or 2.x + * src/Options.cpp: In setIPhoneVersionMin() support 3.x + + +----- Tagged ld64-85.5 + +2008-09-17 Nick Kledzik + + vtable pointers can be missing thumb bit + * src/MachOWriterExecutable.hpp: Writer::fixUpReferenceFinal() OR in the 1 bit if the target + of a arm::kReadOnlyPointer is thumb. + + +----- Tagged ld64-85.4 + +2008-08-11 Nick Kledzik + + ld should ignore LD_PREBIND when processing a static archive + * src/MachOWriterExecutable.hpp: in setImportNlist() never use N_PBUD for object files + +----- Tagged ld64-85.3 + +2008-07-14 Nick Kledzik + + Prebinding busted in DTSB + * src/Options.cpp: check for libstdc++.6.0.[49] in seg_addr_table + + +----- Tagged ld64-85.2 + +2008-05-06 Nick Kledzik + + ARM ld should take W bit off of maxprot for __TEXT segment + * src/MachOWriterExecutable.hpp: for iPhone always set maxprot to be initprot in all segments + + +2008-05-06 Nick Kledzik + + encryptable images may not be signable + * src/MachOWriterExecutable.hpp: use minimum header padding when aligning __text section + + +----- Tagged ld64-85 (Xcode 3.1) + +2008-04-29 Nick Kledzik + + * ld64.xcodeproj/project.pbxproj: is moving from /usr/local/include to /Developer/usr/local/include + + +2008-04-29 Nick Kledzik + + ld doesn't honor "rightmost" -syslibroot argument + * src/Options.cpp: if last -syslibroot is /, then ignore all syslibroots + + +2008-04-29 Nick Kledzik + + GLRendererFloat has bad __eh_frame section caused by mixing llvm-gcc and gcc object files + * src/MachOReaderRelocatable.hpp: make all atoms in __eh_frame section have 1-byte alignment + * src/MachOWriterExecutable.hpp: make __eh_frame section have pointer sized alignment + + +2008-04-17 Nick Kledzik + + * src/MachOReaderRelocatable.hpp: better cpu subtype support + + +2008-04-14 Nick Kledzik + + ld64 has bad ARM branch island check + * src/MachOWriterExecutable.hpp: in addBranchIslands() don't force large arm programs to fail + + +2008-04-10 Nick Kledzik + + * src/MachOWriterExecutable.hpp: fix stubs used with lazy dylibs + + +----- Tagged ld64-84.4 + +2008-04-10 Nick Kledzik + + SPEC2000/eon built with -mdynamic-no-pic won't run + * src/Architectures.hpp: added arm::kReadOnlyPointer + * src/MachOReaderRelocatable.hpp: generate arm::kReadOnlyPointer + * src/MachOWriterExecutable.hpp: use arm::kReadOnlyPointer + * src/machochecker.cpp: allow MH_PIE bit + * unit-tests/test-cases/switch-jump-table: added test cases + + +----- Tagged ld64-84.3 + +2008-04-09 Nick Kledzik + + -undefined dynamic_lookup busted + * src/ld.cpp: don't create proxy atom when scanning for dylib duplicates + * unit-tests/test-cases/tentative-and-archive: use -undefined dynamic_lookup + + +----- Tagged ld64-84.2 + +2008-04-04 Nick Kledzik + + * src/ld.cpp: don't add .eh symbols to symbol table in -r mode + * unit-tests/test-cases/eh-coalescing-r: update to test out of order coalescing + + +----- Tagged ld64-84.1 + +2008-03-28 Nick Kledzik + + ld should prefer architecture-specific variant over generic in fat object file + * src/Options.cpp: fully process -arch arguments into fArchitecture and fSubArchitecture + * src/ld.cpp: when -arch with a subtype is used, try to find the exact subtype from fat files + * unit-tests/test-cases/cpu-sub-types-preference: added test cases for arm and ppc + + +----- Tagged ld64-84 + +2008-03-28 Nick Kledzik + + * src/LTOReader.hpp: don't print lto version, if lto is unavailable + + +2008-03-26 Nick Kledzik + + Add LD_WARN_COMMONS to BigBear builds + * src/Options.cpp: Add support for LD_WARN_FILE which copies all warnings to a side file + + +2008-03-26 Nick Kledzik + + Need encryption tag in mach-o file + linker should adjust arm final linked images so __text is never on the same page as the load commands + * src/MachOFileAbstraction.hpp: add support for encryption_info_command + * src/Options.cpp: add support for LD_NO_ENCRYPT and -no_encryption + * src/MachOWriterExecutable.hpp: add EncryptionLoadCommandsAtom + * src/machochecker.cpp: validate LC_ENCRYPTION_INFO + + +2008-03-25 Nick Kledzik + + ld64 does not recognize LLVM bitcode archive files + * src/MachOReaderArchive.hpp: renamed to src/ArchiveReader.hpp + * src/ArchiveReader.hpp: sniff each member and instantiate correct reader + * src/ld.cpp: rename mach_o::archive::Reader to archive::Reader + * ld64.xcodeproj/project.pbxproj: rename MachOReaderArchive.hpp to ArchiveReader.hpp + * unit-tests/test-cases/llvm-integration: added test case + + +2008-03-25 Nick Kledzik + + ld64 should switch to new libLTO.dylib interface + Produce llvm bc file in 'ld -r' mode if all .o files are llvm bc + * src/LTOReader.hpp: rewrite from LLVMReader.hpp to use new lto_* C interface + * unit-tests/test-cases/llvm-integration: update and comment + * ld64.xcodeproj/project.pbxproj: update to lazy load libLTO.dylib + * src/ld.cpp: rework and simplify Linker::optimize() + * src/ObjectDump.cpp: Add -nm option + + +2008-03-25 Nick Kledzik + + * src/MachOReaderRelocatable.cpp: Fix some .objc_class_name_ off by one problem + * src/MachOWriterExecutable.cpp: Fix some .objc_class_name_ off by one problem + + +2008-03-24 Nick Kledzik + + Xcode 3.1 breaks linkage of libgcj.9.dylib from gcc 4.3.0 + * src/MachOWriterExecutable.cpp: Make sure all ivars in Writer are initialized. + + +2008-03-21 Nick Kledzik + + * src/Options.cpp: warn if -seg1addr value is not page aligned + + +2008-03-21 Nick Kledzik + + Move ARM support outside of __OPEN_SOURCE__ + * src/ld.cpp: remove __OPEN_SOURCE__ around arm support + * src/LLVMReader.hpp: remove __OPEN_SOURCE__ around arm support + * src/MachOReaderDylib.hpp: remove __OPEN_SOURCE__ around arm support + * src/ObjectFile.h: remove __OPEN_SOURCE__ around arm support + * src/MachOReaderRelocatable.hpp: remove __OPEN_SOURCE__ around arm support + * src/OpaqueSection.hpp: Cover arm support inside __OPEN_SOURCE__ macro check + * src/MachOWriterExecutable.hpp: remove __OPEN_SOURCE__ around arm support + * src/ObjectDump.cpp: remove __OPEN_SOURCE__ around arm support + * ld64.xcodeproj/project.pbxproj: remove ARM_SUPPORT from config.h + + +----- Tagged ld64-83.2 + +2008-03-15 Nick Kledzik + + ld64-83 removes OBJC_CLASS_$ symbols from projects, causes catastrophic results + * src/Options.cpp: restore "case CPU_TYPE_ARM" in switch statement for .objc_class symbols in .exp files + * unit-tests/test-cases/objc-exported_symbols_list: added test case + + +----- Tagged ld64-83.1 + +2008-03-14 Nick Kledzik + + -iphone_version_min ==> -iphoneos_version_min + * src/Options.cpp: support -iphoneos_version_min as well + + +----- Tagged ld64-83 + +2008-03-10 Nick Kledzik + + ld needs to strip iphone_version_min option if invoking ld_classic + * src/Options.cpp: suppress -iphone_version_min from being passed to ld_classic + + +2008-03-04 Nick Kledzik + + ADOBE XCODE: Linker option to lazy load frameworks (cause dyld is too slow) + * src/MachOWriterExecutable.hpp: create lazy stubs and LC_LAZY_LOAD_DYLIB for lazy load dylibs + * src/Options.cpp: support -lazy-l, -lazy_library, and -lazy_framework + * src/MachOFileAbstraction.hpp: add LC_LAZY_LOAD_DYLIB and S_LAZY_DYLIB_SYMBOL_POINTERS until in cctools + * src/MachOReaderDylib.hpp: add isLazyLoadedDylib() + * src/ld.cpp: pass lazy helper atom to writer + * doc/man/man1/ld.1: document new options + * unit-tests/test-cases/lazy-dylib-objc: add test case + * unit-tests/test-cases/lazy-dylib: add test case + + +----- Tagged ld64-82.7 + +2008-03-07 Nick Kledzik + + duplicate symbol literal-pointer@__OBJC@__message_refs@... + * src/MachOReaderRelocatable.hpp: AnonymousAtom from S_LITERAL_POINTERS section should be weak + * unit-tests/test-cases/objc-selector-coalescing: added test case + + +----- Tagged ld64-82.6 + +2008-03-04 Nick Kledzik + + ld crashes building XsanFS for Snow Leopard Builds + * src/ld.cpp: add bool dylibsOnly parameter to addJustInTimeAtoms() + * unit-tests/test-cases/tentative-and-archive: added test case + +2008-03-04 Nick Kledzik + + ld64 should not force building with gcc 4.0 + * ld64.xcodeproj/project.pbxproj: change rules to use "system" compiler instead of 4.0 + + +2008-02-29 Nick Kledzik + + Simulator frameworks are being build split-seg and not prebound + * src/Options.cpp: only splitseg if prebound + + +2008-02-29 Nick Kledzik + + Linker should not make GSYM debug note for .objc_category_* symbols + * src/ld.cpp: suppress GSYM debug notes for absolute symbols + * unit-tests/test-cases/objc-category-debug-notes: added test case + + +2008-02-29 Nick Kledzik + + non-ASCII CFString support is broken + * src/MachOReaderRelocatable.hpp: only name and coalesce cfstring constants if they use a __cstring + * unit-tests/test-cases/cfstring-utf16: add test case + + +2008-02-25 Nick Kledzik + + ld -r -x + * doc/man/man1/ld.1: update man page to explain -r -x produces auto-stripped labels + + +----- Tagged ld64-82.5 + +2008-02-12 Nick Kledzik + + x86_64: -stack_size failure when large __bss is used + * src/ld.cpp: only move section already in __DATA segment to new __huge section + * unit-tests/test-cases/stack_size_no_addr: updated test case to add large bss section + + +----- Tagged ld64-82.4 + +2008-02-06 Nick Kledzik + + comdat warnings with ld -r of C++ .o files + * unit-tests/test-cases/eh-coalescing-r: added test case + * src/ld.cpp: in ld -r mode don't warn about if .eh symbols are not static + + +2008-02-06 Devang Patel + + LTO of Bom framework with -dead_strip causes ld(1) crash + * src/LLVMReader.hpp: Check fAtom while determining LLVMReference target binding. + * unit-tests/test-cases/llvm-integration/Makefile: Add new test case. + * unit-tests/test-cases/llvm-integration/a15.c: New. + * unit-tests/test-cases/llvm-integration/b15.c: New. + * unit-tests/test-cases/llvm-integration/c15.c: New. + +2008-02-05 Nick Kledzik + + * src/ld.cpp: fix for -arch ppc -mdynamic-no-pic -pie so PPC_RELOC_HA16 reloc is used + +----- Tagged ld64-82.3 + +2008-02-04 Nick Kledzik + + ld doesn't seem to understand $ld$add$os... and $ld$hide$os... for 10.6 moves + * src/ObjectFile.h: add 10.6 + * src/Options.cpp: add 10.6 support + * src/MachOReaderDylib.hpp: recognize $os10.6$ + + +----- Tagged ld64-82.2 + +2008-01-30 Devang Patel + + Can't build 64-bit Intel binaries with LTO + ld64 fails to build with llvm-gcc-4.2 + * src/LLVMReader.hpp: Fix character count typo in strncmp call. + Use const char * to initialize temp. string. + * ld64.xcodeproj/project.pbxproj: use $(DEVELOPER_DIR) in header search construction + instead of hard coding /Developer. + +----- Tagged ld64-82.1 + +2008-01-23 Nick Kledzik + + * src/MachOReaderRelocatable.hpp: don't bus error if S_LITERAL_POINTERS is missing relocs + + +2008-01-22 Nick Kledzik + + ld uses 32-bits in some places to hold addresses when parsing 64-bit mach-o files + * src/MachOReaderRelocatable.hpp: use AddrToAtomMap type that switch address to 64-bits for 64-bit archs + * src/MachOWriterExecutable.hpp: verify BR14 does not overflow for external relocs + * unit-tests/test-cases/relocs-c: update test case to slide addresses to verify x86_64 .o files + + +----- Tagged ld64-82 + +2008-01-18 Nick Kledzik + + Bad grammar used in ld warning: cannot exported hidden symbol + * src/ld.cpp: fix typo in warning string + + +2008-01-16 Nick Kledzik + + Bundle Loader does not work anymore when loader is a bundle + ld warns of incorrect architecture when linking a bundle to a bundle + * src/MachOReaderDylib.hpp: support linking against bundles via -bundle_loader. Clean up error messages + * unit-tests/test-cases/bundle_loader: update test case + + +2008-01-16 Nick Kledzik + + ld -r -x creates debug notes (stabs) when it should not with -x (keep only global symbols) + * src/Options.cpp: in reconfigureDefaults() if -r and -x then -S + + +2008-01-16 Nick Kledzik + + if ld crashes while writing output file, it should delete the half written file + * src/MachOWriterExecutable.hpp: wrap open/write/close in try block and add signal handlers all to delete + output file on failure. + + +2008-01-16 Devang Patel + + * src/LLVMReader.hpp: Use __gnu_cxx::hash_map instead of hash supported by LLVM. + + +2008-01-16 Nick Kledzik + + GC-supported library can't be linked into GC-required executable + * src/ld.cpp: loosen constraint that all objc code must be compiled with same GC settings and + allow gc-compatible code to be linked into anything. + * unit-tests/test-cases/objc-gc-checks: update test case + + +2008-01-15 Nick Kledzik + + no debug notes for custom named data + * src/ld.cpp: in synthesizeDebugNotes() check getSymbolTableInclusion() instead of for leading underscore + * unit-tests/test-cases/dwarf-debug-notes: update test case + +----- Tagged ld64-81.5 + +2008-01-14 Devang Patel + + llvm-gcc-4.2 fails to build Sqlite 3.5.4 with -O4 + * src/LLVMReader.hpp: Resolve proxy references. Collect new unbounded references + after optimization. + * src/ld.cpp: Resolve additional unbounded references after optimization. + + +2008-01-14 Nick Kledzik + + PPC Leopard (Xcode 3.0) linker ld gets "Bus error" sometimes + * src/MachOReaderRelocatable.hpp: use same code as x86 to parse ppc and arm sect-diff relocs + * src/MachOWriterExecutable.hpp: use same code as x86 to write ppc and arm sect-diff relocs + + +2008-01-11 Nick Kledzik + + PPC Leopard (Xcode 3.0) linker ld reports "unknown scattered relocation type 4" + * src/MachOReaderRelocatable.hpp: add PPC_RELOC_HI16 to scattered reloc parsing + * unit-tests/test-cases/relocs-asm/relocs-asm.s: added tests for scattered hi/lo instructions + + +2008-01-11 Nick Kledzik + + * doc/man/man1/ld.1: add doc for -no_implicit_dylibs, -read_only_stubs, -slow_stubs, -interposable_list + + +2008-01-11 Nick Kledzik + + ld64(1) man page uses ambiguous term "suffix" + * doc/man/man1/ld.1: make meaning of "suffix" more explicit + + +2008-01-11 Nick Kledzik + + Obj-C Symbols in Leopard Can't Be Weak Linked + * src/MachOWriterExecutable.hpp: set weak and lazy attributes on dummy .objc_class_name undefines + to dylibs to support Mac OS X 10.3.x dyld + + +2008-01-11 Nick Kledzik + + Unknown error with linker (dyld: unknown external relocation type) + * src/ld.cpp: fix crash when SO stabs are not balanced + + +2008-01-11 Devang Patel + + LTO does not work if expected output is a dynamic library + * src/LLVMReader.hpp: Supply arguments describing output kind to optimizer. Communicate + visibility info. + +2000-01-10 Nick Kledzik + + __cls_refs section is losing S_LITERAL_POINTERS section type + * src/MachOWriterExecutable.hpp: special case __cls_refs section + * unit-tests/test-cases/objc-literal-pointers: add test case + + +2008-01-03 Nick Kledzik + + wrong EH information might be used + Created new kGroupSubordinate reference kind to model group comdat. The "signature" atom + has kGroupSubordinate references to the other atoms in the group. If the signature atom + is coalesced away, the linker follows kGroupSubordinate references and throws away the + other members of the group. + * unit-tests/test-cases/eh-coalescing: added test case + * src/ld.cpp: added markDead() and use propagate to subordinates + * src/Architectures.hpp: added kGroupSubordinate + * src/MachOReaderRelocatable.hpp: add kGroupSubordinate reference from a function to its .eh atom + and if used, from .eh atom to its LSDA atom. + * src/MachOWriterExecutable.hpp: handle kGroupSubordinate like kNoFixUp + +----- Tagged ld64-81.4.1 + +2007-12-19 Devang Patel + + * src/LLVMReader.hpp: Add LLVM_LTO_VERSION #ifdef check. + +2007-12-19 Devang Patel + + * src/LLVMReader.hpp: Add fOptimizer NULL check before calling printVersion(). + +2007-12-19 Devang Patel + + print LLVM LTO version number in verbose mode + * src/LLVMReader.hpp: Add printLLVMVersion() to print llvm version string in verbose mode. + * src/Options.cpp: Use printLLVMVersion() in verbose mode. + +2007-12-19 Devang Patel + + print LLVM LTO version number in verbose mode + * src/Options.h: Add verbose() method to check fVerbose flag. + * src/LLVMReader.hpp: Print LLVM version string in verbose mode. + +----- Tagged ld64-81.4 + +2007-12-18 Devang Patel + + * src/LLVMReader.hpp: Invalidate input architecture when optimizer is not available. + +----- Tagged ld64-81.3 + +2007-12-17 Nick Kledzik + + * ld64.xcodeproj/project.pbxproj: remove extraneous header search paths + + +2007-12-17 Devang Patel + + * src/LLVMReader.hpp: Do not throw exception if LLVMReader is not able to + dlopen LTO library. Instead just flag input file as an invalid LLVM bitcode file. + + +2007-12-14 Nick Kledzik + + gcc DejaGnu failure: gcc.dg/20020312-2.c (test for excess errors) (-fstack-protector-all) + * src/MachOWriterExecutable.hpp: fix Writer::generatesExternalTextReloc() to allow text relocs + * unit-tests/test-cases/read-only-relocs: updated test case to link a dynamic main executable compiled with -static + + +2007-12-14 Devang Patel + + Enable Link Time Optimization in Opal + * src/LLVMReader.hpp: Locate LLVMlto.dylib relative to ld location in Developer folder. + * ld64.xcodeproj/project.pbxproj: Add {DEVELOPER_DIR}/usr/include in header search path. + * unit-tests/run-all-unit-tests: Set DYLD_FALLBACK_LIBRARY_PATH to find LLVMlto.dylib during unit testing. + * unit-tests/testcases/llvm-integration/Makefile: Point LLVMGCC and LLVMGXX to llvm-gcc-4.2 in Developer folder during unit testing. + + +2007-12-13 Nick Kledzik + + SWB: failures due to ld: pointer in read-only segment not allowed in slidable image, used in ... + * src/MachOReaderRelocatable.hpp: in Reader::addRelocReference() handle weak pc-rel 32-bit vanilla relocs properly + +----- Tagged ld64-81.2 + + + +2007-12-07 Nick Kledzik + + support 8-bit relocations for i386 + * src/Architectures.hpp: add kPCRel8 + * src/MachOReaderRelocatable.hpp: support 8-bit pc-rel relocations for intel + * src/MachOWriterExecutable.hpp: support 8-bit pc-rel relocations for intel + * unit-tests/test-cases/relocs-asm: add test cases + + +----- Tagged ld64-81.1 + +2007-12-06 Nick Kledzik + + * src/MachOReaderDylib.hpp: rework cycle detection to remove some false positives + + +2007-12-05 Nick Kledzik + + Duplicate probe firings in Security.framework + * src/ld.cpp: check dtrace probe sites are not in fDeadAtoms before using + * unit-tests/test-cases/dtrace-static-probes-coalescing: add test case + + +2007-12-05 Nick Kledzik + + * src/MachOReaderRelocatable.hpp: fix CFString coalescing to work with -fwritable-strings + * unit-tests/test-cases/cfstring-coalesce: add -fwritable-strings to test case + + +----- Tagged ld64-81 + +2007-11-15 Nick Kledzik + + ld64 should support runtime text relocations + * src/MachOWriterExecutable.hpp: add generatesLocalTextReloc() and generatesExternalTextReloc() + * src/Options.cpp: process -read_only_relocs option + * src/Options.h: add allowTextRelocs() and warnAboutTextRelocs() + * src/MachOReaderRelocatable.hpp: add hasLongBranchStubs() + * src/machochecker.cpp: allow relocs in read only segments, if section flags are set + * unit-tests/test-cases/read-only-relocs: update test case + + +2007-11-08 Devang Patel + + * ld64.xcodeproj/project.pbxproj: add new build phase "build configure.h" for + ld target. + * src/ld.cpp: Include "configure.h" + + +----- Tagged ld64-80.11 + +2008-02-12 Nick Kledzik + + Wrong section name for objc info for ARM when OBJC2 is used + * src/MachOWriterExecutable.hpp: switch segment/section name for ARM objc2 image info + +----- Tagged ld64-80.10 + +2008-02-11 Nick Kledzik + + ld64 does not support -aspen_version_min 2.0 + * src/Options.cpp: allow 2.x for -aspen_version_min + + +2008-02-11 Nick Kledzik + + ld_classic: unknown flag: -aspen_version_min + * src/Options.cpp: change -aspen_version_min x.x to -macosx_version_min 10.5 when invoking ld_classic + + +----- Tagged ld64-80.9 + +2008-01-29 Nick Kledzik + + -iphone_version_min ==> -aspen_version_min + * src/Options.cpp: support -aspen_version_min + + +----- Tagged ld64-80.8 + +2008-01-10 Nick Kledzik + + * src/Options.cpp: support transition to new objc ABI for ARM by allowing old .objc_class_name_* + style names in export files and map them to new _OBJC_CLASS_$_ style names. + + +----- Tagged ld64-80.7 + +2008-01-02 Nick Kledzik + + BigBear5A18 isn't fully prebound + * src/Options.cpp: make fNeedsModuleTable true for arm + +----- Tagged ld64-80.6 + +2007-11-30 Nick Kledzik + + -iphone_version_min + * src/Options.cpp: handle -iphone_version_min option + + +----- Tagged ld64-80.5 + +2007-11-26 Nick Kledzik + + need to special case some dylibs in seg_addr_table + * src/Options.cpp: retry seg_add_table lookup for a couple of unusual dylibs + + +----- Tagged ld64-80.4 + +2007-11-06 Nick Kledzik + + * src/MachOReaderRelocatable.hpp: fix parsing of external and scattered thumb branch22 relocs + * unit-tests/test-cases/thumb-blx: add test case to keep blx issues from coming back + +----- Tagged ld64-80.3 + +2007-11-03 Nick Kledzik + + * src/MachOReaderRelocatable.hpp: remove recalc of dstAddr which could cause thumb branches to be +2 + * src/MachOWriterExecutable.hpp: remove incorrect test for relocateableExternal + +----- Tagged ld64-80.2 + +2007-11-01 Nick Kledzik + + * src/ld.cpp: hack my own prototype for log2() until math.h is cleaned up + + +----- Tagged ld64-80.1 + +2007-11-01 Nick Kledzik + + * ld64.xcodeproj/project.pbxproj: add HEADER_SEARCH_PATHS for cross builds + * src/ld.cpp: temporarily disable LLVM_SUPPORT + * src/MachOWriterExecutable.hpp: Don't use CC_MD5() directly + + +2007-10-26 Nick Kledzik + + Cannot build with libm_static.a statically linked + * src/MachOWriterExecutable.hpp: Fix makesExternalRelocatableReference() for -r -d case + * unit-tests/test-cases/tentative-to-real-hidden: add test case + + +----- Tagged ld64-80 + +2007-10-24 Nick Kledzik + + linker should probably warn about trying to export a hidden symbol + * src/ld.cpp: if using -exported_symbols_list check each hidden atom as it is added to symbol table + * src/Options.h,.cpp: add hasExportMaskList() + * unit-tests/test-cases/exported_symbols_list-hidden: added test case + + +2007-10-24 Nick Kledzik + + * src/MachOWriterExecutable.hpp: keep old style dtrace probes externel for kernel builds + + +2007-10-23 Nick Kledzik + + unify error and warning messages + -w should suppress warnings + * src/ld.cpp: use warning() function + * src/Options.h: remove emitWarnings() + * src/MachOReaderDylib.hpp: use warning() function + * src/MachOReaderRelocatable.hpp: use warning() function + * src/Options.cpp: use and implement warning() + * src/MachOWriterExecutable.hpp: use warning() function + * unit-tests/test-cases/visibility-warning: verify -w suppresses warnings + + +2007-10-23 Devang Patel + + * src/ld.cpp: Cover arm support inside __OPEN_SOURCE__ macro check. + * src/LLVMReader.hpp: Cover arm support inside __OPEN_SOURCE__ macro check. + * src/MachOReaderDylib.hpp: Cover arm support inside __OPEN_SOURCE__ macro check. + * src/ObjectFile.h: Cover arm support inside __OPEN_SOURCE__ macro check. + * src/MachOReaderRelocatable.hpp: Cover arm support inside __OPEN_SOURCE__ macro check. + * src/OpaqueSection.hpp: Cover arm support inside __OPEN_SOURCE__ macro check + * src/MachOWriterExecutable.hpp: Cover arm support inside __OPEN_SOURCE__ macro check. + * src/ObjectDump.cpp: Cover arm support inside __OPEN_SOURCE__ macro check. + + +2007-10-22 Nick Kledzik + + * src/Options.cpp: add support for LD_DEAD_STRIP and LD_WARN_COMMONS + * src/MachOReaderRelocatable.hpp: fix problem with -dead_strip of ObjC literal pointers + + +2007-10-22 Nick Kledzik + + * src/Options.cpp: have -static arm code link with ld_classic (for now) + + +2007-10-22 Nick Kledzik + + Recognize all arm architectures + * src/MachOReaderRelocatable.hpp: add support for all ARM sub-types + * unit-tests/test-cases/cpu-sub-types: add test cases for all combinations of ARM sub-types + + +2007-10-19 Nick Kledzik + + * src/*: merge in arm support + * unit-tests/test-cases/*: fix to work for arm and thumb + +----- Tagged ld64-79 + +2007-10-16 Nick Kledzik + + * src/MachOWriterExecutable.hpp: if -r mode, always set custom alignment (SET_COMM_ALIGN) on common symbols + * unit-tests/test-cases/visibility-warning-dylib-v-archive/Makefile: fix warning + * unit-tests/test-cases/static-executable/Makefile: fix spurious failure + + +2007-10-16 Nick Kledzik + + * src/MachOWriterExecutable.hpp: fix edge case in branch island generation + + +2007-10-12 Nick Kledzik + + Add option to create old, slow stubs for i386 + * src/ObjectFile.h/.cpp: support -read_only_stubs + * src/MachOWriterExecutable.hpp: enhance StubAtom to support old style __symbol_stub/__la_symbol_ptr stubs + * unit-tests/test-cases/slow-x86-stubs: add test case + + +2007-10-12 Nick Kledzik + + ld64's re-export cycle detection logic prevents use of X11 libGL on Leopard + * src/Options.cpp: in findFileUsingPaths() don't search for embedded dylibs + * unit-tests/test-cases/indirect-path-search/Makefile: added case for a dylib embedded in a framework + + +2007-10-11 Nick Kledzik + + add option to disable implicit load commands for indirectly used public dylibs + * src/Options.cpp: add support for -no_implicit_dylibs + * src/ObjectFile.h: add fImplicitlyLinkPublicDylibs + * src/MachOReaderDylib.hpp: test fImplicitlyLinkPublicDylibs before hoisting an implicitly linked dylib + * unit-tests/test-cases/implicit_dylib: add test case + + +2007-10-11 Nick Kledzik + + -interposable_list + * src/Options.h/cpp: Add fInterposeList and fInterposeMode to support -interposable_list + * src/MachOWriterExecutable.hpp: pass symbol name to fOptions.interposable() + * unit-tests/test-cases/interposable_list: add test case + + +2007-10-10 Nick Kledzik + + If only weak_import symbols are used, linker should use LD_LOAD_WEAK_DYLIB + * src/MachOWriterExecutable.hpp: automatically use LC_LOAD_WEAK_DYLIB if all symbols used from a dylib are weak_import + * unit-tests/test-cases/weak_dylib: added test case + + +2007-10-10 Nick Kledzik + + linker does not error when dylib ordinal exceeds 250 + * src/MachOWriterExecutable.hpp: error out if ordinals exceed max allowed + + +2007-10-10 Nick Kledzik + + overriding 'operator new' or 'operator delete' fails if no weak symbols are present + * src/ld.cpp: at end of checkUndefines() search dylibs for weak versions of any global external symbols + * src/ObjectFile.h: add hasWeakExternals() method to Reader + * src/MachOReaderDylib.hpp: implement hasWeakExternals() method in Reader + * src/ExecutableFile.h: add overridesDylibWeakDefines parameter to write() + * src/MachOWriterExecutable.hpp: use overridesDylibWeakDefines parameter to write() + * unit-tests/test-cases/operator-new: add test case + + +2007-10-05 Nick Kledzik + + No warning about tentative definition conflicting with dylib definition + .comm variables in shared library, worked with XCode 2.4.1, broken with XCode 3? + * src/ld.cpp: at end of checkUndefines() verify if any remaining commons conflict with dylibs + * doc/man/man1/ld.1: document -commons and -warn_commons options + * unit-tests/test-cases/tentative-and-dylib: added test case + + +2007-10-05 Nick Kledzik + + NS/CFString constants are not dead strippable + * src/MachOReaderRelocatable.hpp: break up __cfstring section into one atom per cfstring, make them coalesable + * unit-tests/test-cases/cfstring-coalesce: added test case + + +2007-10-05 Nick Kledzik + + Dead stripping + exported symbols list using wildcards doesn't seem to do the right thing + * src/Options.cpp/h: add hasWildCardExportRestrictList() + * src/ld.cpp: if dead stripping code and have wildcard exports, add all global atoms matching wildcards as roots + * unit-tests/test-cases/exported-symbols-wildcards-dead_strip: added test case + + +2007-10-04 Nick Kledzik + + ld shouldn't search /Network/Library/Frameworks by default + * src/Options.cpp: remove /Network/Library/Frameworks/ from default search path + * doc/man/man1/ld.1: document the change + + +2007-10-04 Nick Kledzik + + all binaries should get LD_UUID load commands, not just those with DWARF symbols + * src/ld.cpp: default fCreateUUID to be true for non object file output types + * unit-tests/test-cases/no-uuid/Makefile: update test case to match new rules + + +----- Tagged ld64-78 + +2007-09-27 Nick Kledzik + + range check load commands + * src/MachOReaderDylib.hpp: check that load commands all fit in load command size from header + * src/MachOReaderRelocatable.hpp: check that load commands all fit in load command size from header + + +2007-09-27 Nick Kledzik + + Xc8M2540a: ld64 crashes when linking Pascal program + * src/ld.cpp: fix findAtomAndOffset() to handle where there are no function atoms + + +2007-09-27 Nick Kledzik + + ADOBE Xcode 3: ld -dead_strip does not work with -init from an archive + * src/ld.cpp: add bool parameter to entryPoint() so -init atom not looked for too soon + * unit-tests/test-cases/dead_strip-init-archive: added test case + + +2007-09-26 Nick Kledzik + + Spurious link warnings for inline members of C++ template classes + * src/ld.cpp: check definition kinds before warning about visibility mismatches + * unit-tests/test-cases/visibility-warning: added test case + + +2007-09-26 Nick Kledzik + + an empty .o file with zero load commands will crash linker + * src/MachOReaderRelocatable.hpp: have Reader constructor return early of no load commands + * unit-tests/test-cases/empty-object: added test case + + +2007-09-26 Nick Kledzik + + 9a527: ppc64 branch islands fail with 4GB pagezeo + * src/MachOWriterExecutable.hpp: start range calculations at start of __text not at zero. + + +----- Tagged ld64-77 (Xcode 3.0) + +2007-07-23 Nick Kledzik Kernel is linked with some global symbols unsorted * src/MachOWriterExecutable.hpp: Add NListNameSorter to allow global atoms and extra labels to be sorted @@ -1825,12 +4240,6 @@ * src/MachOReaderRelocatable.cpp: mark non-lazy-pointer atoms as scopeTranslationUnit if targetting a static symbol -#ifndef __OPEN_SOURCE__ -2006-04-27 Nick Kledzik - - dyld crashes ungracefully on x86_64 when there is an internal exception - * src/MachOWriterExecutable.cpp: allow non-zero PCRELGOT addends (used by C++ eh frames) -#endif 2006-04-21 Nick Kledzik @@ -1874,11 +4283,6 @@ ----- Tagged ld64-50 -#ifndef __OPEN_SOURCE__ -2006-03-29 Nick Kledzik - - * src/MachOWriterExecutable.hpp: fix x86_64 addends when -multi_module forces an external relocation -#endif 2006-03-29 Nick Kledzik @@ -1930,62 +4334,18 @@ * src/Options.cpp: setup ReaderOptions.fForFinalLinkedImage * src/MachOReaderRelocatable.hpp: mark .eh symbols kSymbolTableNotIn when building final linked image -#ifndef __OPEN_SOURCE__ -2006-03-21 Nick Kledzik - - Inca ld64-45 fatal error with C++ and asm() renaming - * src/MachOReaderRelocatable.hpp: fix Reader::makeReferenceToEH(() to walk relocations to find - target of eh symbol, rather assume target name is eh symbol name less .eh - -#endif 2006-03-21 Nick Kledzik ld64 does not parse optional second argument to -filelist * unit-tests/test-cases/filelist: added * src/Options.cpp: in Options::loadFileList() handle comma option -#ifndef __OPEN_SOURCE__ -2006-03-21 Nick Kledzik - - 32-bit pointer difference out of range for cxx eh frame - * src/MachOReaderRelocatable.hpp: x86_64 doesn't have anonymous non-lazy-pointers - * src/machochecker.cpp: fix validFile() for x86_64 - * unit-tests/run-all-unit-tests: add x86_64 - * unit-tests/include/common.makefile: don't add -g to all compilers - * unit-tests/test-cases/relocs-asm/relocs-asm.s: add x86_64 test cases - * unit-tests/test-cases/relocs-c/Makefile: fix to work with x86_64 - * src/ld.cpp: add hack to use i386 dylibs if x86_64 don't exist - -2006-03-19 Nick Kledzik - - ld64 crashes whenever I try to link with dylib1.o - * src/MachOReaderRelocatable.hpp: in Reader::addRelocReference() fix local relocations -#endif ----- Tagged ld64-47.1 -#ifndef __OPEN_SOURCE__ -2006-03-16 Nick Kledzik - - ld64-41 in Leopard doesn't have x86_64 support - * ld64.xcodeproj/project.pbxproj: enable x86_64 for Leopard -#endif ----- Tagged ld64-47 -#ifndef __OPEN_SOURCE__ -2006-03-14 Nick Kledzik - - * src/Architectures.hpp: redo x86_64 relocation types - * src/MachOReaderRelocatable.hpp: redo x86_64 relocation types, make some section type illegal for x86_64 - * src/MachOWriterExecutable.hpp: redo x86_64 relocation types - -2006-03-13 Nick Kledzik - - ld64 -r does not handle internal relocations for x86_64 - * src/MachOWriterExecutable.hpp: handle internal relocations in Writer::fixUpReferenceRelocatable() - and Writer::addObjectRelocs(). -#endif ----- Tagged ld64-46 @@ -2019,24 +4379,12 @@ ----- Tagged ld64-45 -#ifndef __OPEN_SOURCE__ -2006-03-06 Nick Kledzik - - ld64 failed: rel32 out of range when linking a dylib - * src/MachOWriterExecutable.cpp: in Writer::fixUpReferenceFinal add (int32_t) cast -#endif 2006-03-06 Nick Kledzik LP64/9A122: ld64: hang when trying to link DiscRecording framework * src/Options.cpp: addSectionAlignment, warn on zero. Use log2() for alignment conversion -#ifndef __OPEN_SOURCE__ -2006-03-06 Nick Kledzik - - x86_THREAD_STATE64_COUNT will change, ld64 must adapt - * src/MachOWriterExecutable.hpp: update ThreadsLoadCommandsAtom for new thread status layout -#endif ----- Tagged ld64-44 @@ -2051,14 +4399,6 @@ ----- Tagged ld64-43 -#ifndef __OPEN_SOURCE__ -2006-03-03 Nick Kledzik - - RIP-relative offsets aren't handled properly when the instruction has immediate operands - * src/Architectures.hpp: add x86_64::kPCRel32_* - * src/MachOReaderRelocatable.hpp: generate x86_64::kPCRel32_* - * src/MachOWriterExecutable.hpp: process x86_64::kPCRel32_* -#endif 2006-03-02 Nick Kledzik