ChangeLog   [plain text]

2006-09-22      Nick Kledzik    <>

	ld64.xcodeproj/project.pbxproj: change install name back to ld64
	src/Options.cpp: remove support for rolling over to ld_classic
	src/ld.cpp: remove support for rolling over to ld_classic

----- Tagged ld64-62

2006-08-15      Nick Kledzik    <>

	<rdar://problem/4681062> wrong error message when symbol is found in unused indirect library
	src/ld.cpp: remove indirect libraries if they are not re-exported
	unit-tests/test-cases/indirect-dylib: added test case

2006-08-15      Nick Kledzik    <>

	<rdar://problem/3930461> alignment needs to be richer
	src/ObjectFile.h: define ObjectFile::Alignment class for tracking rich alignment info
	src/ld.cpp: modify SymbolTable::add() to work with new Alignment type
	src/MachOReaderRelocatable.hpp: use new Alignment type. Remove alignAtLeast() and handleAnonymousNonLazyPointers()
	src/MachOWriterExecutable.hpp: update for new Alignment type, use modulus when calculating layout address
	src/ObjectDump.cpp: print richer Alignment info
	unit-tests/test-cases/align-modulus: added test case

2006-08-11      Nick Kledzik    <>

	remove OPEN_SOURCE conditionals around x86_64 support

2006-07-31      Nick Kledzik    <>

	<rdar://problem/4654131> ld64 while linking cc1 [ when dead_strip is ON]
	src/ld.cpp: Add ivar fAtomsWithUnresolvedReferences to track atoms not initially resolvable
	unit-tests/test-cases/dead_strip-archive: added test case

2006-07-31      Nick Kledzik    <>

	<rdar://problem/4656617> x86_64: instructions with immediate and rip-relative operands need to use new relocation types
	src/MachOWriterExecutable.hpp: generate new reloc types in -r mode	
	src/MachOReaderRelocatable.hpp: parse new reloc types
	unit-tests/test-cases/relocs-asm/relocs-asm.s: add test cases for new reloc type

2006-07-18      Nick Kledzik    <>

	src/MachOReaderRelocatable.hpp: suppress warning about dwarf info parsing for one benign no-op case
	the compiler emits when there are not functions in the __text section

2006-07-17      Nick Kledzik    <>

	<rdar://problem/4634840> faster debug note generateion
	src/ld.cpp: rework collectDebugInfo() to produce all debug notes in one pass, intead of a 
	pass per .o file. Added timing info for collectDebugInfo() to -print_statistics
	unit-tests/test-cases/dwarf-debug-notes-r/Makefile: add expliced -arch to ld -r 
	unit-tests/test-cases/dwarf-debug-notes-r/expected-stabs: alter for new debug notes order

2006-07-17      Nick Kledzik    <>

	<rdar://problem/4623994> ld64 VSIZE is 1.18GB when building Finder ppc64
	src/ld.cpp: fixed typo in createReader() that prevented dylibs from being unmapped

----- Tagged ld64-61.1

2006-07-11      Nick Kledzik    <>
	<rdar://problem/4622049> ld64-61: gcc DejaGnu tests failing due to -arch followed by unknown architecture name
	src/Options.cpp: map ppc750, ppc7400, ppc7450, and ppc970 to ppc. Improve error message

2006-07-11      Nick Kledzik    <>

	<rdar://problem/4622769> If -arch is missing, rollover to ld_classic does not happen
	src/Options.h: make gotoClassicLinker() public
	src/ld.cpp: call gotoClassicLinker() if the inferred architecture is ppc or i386

----- Tagged ld64-61

2006-06-29      Nick Kledzik    <>

	<rdar://problem/4606628> ld64 should be renamed to ld
	src/Options.cpp: exec() ld_classic if -arch ppc or -arch i386 is seen
	src/ld.cpp: alter version string
	ld64.xcodeproj/project.pbxproj: change install location to /usr/bin/ld, add symlink from /usr/bin/ld64
	doc/man/man1/ld.1: added
----- Tagged ld64-60

2006-06-28      Nick Kledzik    <>
	<rdar://problem/4604539> Can't link large ppc64 program: ld64 says "bl out of range"
	MachOWriterExecutable.hpp: fix branch island generation to work for weak_import functions
	and properly chain together branch islands
	MachOReaderRelocatable.hpp: improve performance of huge .o file reading by sorted references
	only when done

2006-06-28      Nick Kledzik    <>

	<rdar://problem/4603454> MySQL-36 fails to build with ld64-59
	src/MachOReaderRelocatable.hpp: back out fix for 4585335
	src/MachOWriterExecutable.hpp: back out fix for 4585335

2006-06-27      Nick Kledzik    <>

	src/MachOReaderRelocatable.hpp: handle N_GSYM without ending :G() since that is how 
	dwarf debug notes are formed. 

2006-06-23      Nick Kledzik    <>

	<rdar://problem/4599239 objc class with no superclass causes bad undefined symbol
	src/MachOReaderRelocatable.hpp: handle NULL superclass in objc_class
	unit-tests/test-cases/relocs-objc/test.m: add case with no super class

2006-06-23      Nick Kledzik    <>

	<rdar://problem/4313369> ld64 doesn't support variant linking -framework fw,_debug
	src/Options.cpp: enhance findFramework() to support suffixes

----- Tagged ld64-59

2006-06-22      Nick Kledzik    <>

	<rdar://problem/4596726> ld64 lost DWARF debug notes
	src/MachOReaderRelocatable.hpp: add fHasUUID so kDebugInfoStabsUUID can be set later
	unit-tests/test-cases/dwarf-debug-notes-r: added test case
2006-06-21      Nick Kledzik    <>

	<rdar://problem/4567995> python 64-bit address miscalculation
	src/MachOReaderRelocatable.hpp: change getTargetOffset() to sign extend the 32-bit value to 64-bits
2006-06-21      Nick Kledzik    <>

	<rdar://problem/4535036> ld64 seems to offset things incorrectly when using -r
	src/MachOWriterExecutable.hpp: in -r mode, virtual sections should not increment address

----- Tagged ld64-58

2006-06-16      Nick Kledzik    <>

	src/rebase.cpp: fix page alignment problem
	src/rebase.cpp: fix endianess problem with local non-lazy pointers

2006-06-15      Nick Kledzik    <>

	src/rebase.cpp: fix to build in CurryWeed
	ld64.xcodeproj/project.pbxproj: fix to build properly in CurryWeed 

2006-06-15      Nick Kledzik    <>

	<rdar://problem/4495309> Support .objc_class_name_* symbols	
	src/ObjectFile.h: Add kSymbolTableInAsAbsolute
	src/MachOReaderRelocatable.hpp: synthesize references to required objc classes
	src/MachOWriterExecutable.hpp: write objc_class_name as absolute symbol
	unit-tests/test-cases/objc-references: added

2006-06-15      Nick Kledzik    <>

	<rdar://problem/4484369> SECTION_ATTRIBUTES unset in ppc64 mach-o header
	src/MachOWriterExecutable.hpp: add section attribute for sections with code

2006-06-15      Nick Kledzik    <>

	<rdar://problem/4569407> ld64 bogus duplicate symbol name linking GNU libobjc
	src/MachOReaderRelocatable.hpp: only special case Apple objc runtime objc classes

2006-06-15      Nick Kledzik    <>

	<rdar://problem/4582999> x86_64: ".align" directive not honored
	src/MachOReaderRelocatable.hpp: change code alignment to not depend on atom size

2006-06-14      Nick Kledzik    <>

	<rdar://problem/4585335> jump table into middle of weak symbol causes error
	src/MachOReaderRelocatable.hpp: create direct references to the interior of weak symbols
	src/MachOWriterExecutable.hpp: do not error on absolute references to interior of weak symbols

2006-06-13      Nick Kledzik    <>

	src/Options.cpp: allow -image_base as an alias for -seg1addr

2006-06-13      Nick Kledzik    <>

	<rdar://problem/4585115> implement -d
	src/Options.h: add fMakeTentativeDefinitionsReal
	src/Options.cpp: set fMakeTentativeDefinitionsReal if -d option is found
	src/MachOWriterExecutable.hpp: turn tentative into real definition if makeTentativeDefinitionsReal
	unit-tests/test-cases/btentative-to-real: added test case

2006-06-13      Nick Kledzik    <>

	<rdar://problem/4584355> implement -bundle_loader
	src/Options.h: add fBundleLoader bit to DynamicLibraryOptions
	src/Options.cpp: handle -bundle_loader
	src/ld.cpp: pass fBundleLoader bit to MachOReaderDylib
	src/MachOReaderDylib.hpp: support reading MH_EXECUTE files if fBundleLoader is set
	src/MachOWriterExecutable.hpp: set bundle loader ordinal as EXECUTABLE_ORDINAL
	unit-tests/test-cases/bundle_loader: added test case

2006-06-12      Nick Kledzik    <>

	<rdar://problem/4583347> -syslibroot can cause "can't find ordinal for imported" error
	src/MachOReaderDylib.hpp: in  Reader::reExports() compare install path in addition to load path

2006-06-10      Nick Kledzik    <>

	<rdar://problem/4548935> Need rebasing tool
	src/rebase.cpp: added
	unit-tests/test-cases/rebase-basic: added
	doc/man/man1/rebase.1: added
	ld64.xcodeproj/project.pbxproj:  added rebase target.  changed all targets to build with dwarf

2006-06-10      Nick Kledzik    <>

	src/machochecker.cpp: add some ppc reloc sanity checking

----- Tagged ld64-57

2006-06-06      Nick Kledzik    <>

	<rdar://problem/4565088> ld64 is not adding a final '/' char on the initial directory-name SO stab debug map entry
	ld.cpp: Change Linker::synthesizeStabs() to assure directory SO always has a trailing slash
	unit-tests/test-cases/dwarf-debug-notes/expected-stabs: update with trailing /
2006-06-06      Nick Kledzik    <>

	<rdar://problem/4572702> -sectcreate of a 0-byte section fails	
	MachOWriterExecutable.cpp: Don't error out on zero length segments
	MachOWriterExecutable.cpp: For ppc64 reloc base address is the first writable segment iff
	 there is a writable segment >4GB from base address

2006-06-04  Eric Christopher  <>

	Radar 4560240
	Radar 3964999
	* src/ld.cpp (createReader): Fixed error message.
	(resolve): Ditto.
	(resolveFrom): Ditto.
	(checkUndefines): Ditto.

----- Tagged ld64-56

2006-05-23      Nick Kledzik    <>

	<rdar://problem/4558079> No debug notes for ObjC methods when linking with ld64
	ld.cpp: don't limit debug notes to functions starting with underscore

2006-05-22      Nick Kledzik    <>

	<rdar://problem/4556982> ld64 spends much time in mach_o::relocatable::Reader<x86_64>::findAtomByName
	* src/MachOReaderRelocatable.hpp: add makeReferenceToSymbol() so that x86_64 does not need to do by-name lookups

2006-05-22      Nick Kledzik    <>

	<rdar://problem/4535044> remove inferring warning
	* ld.cpp: Remove "inferring" warning.  If a link failed and now arch was specifed add which arch was
	inferred to error message

2006-05-19      Nick Kledzik    <>

	<rdar://problem/4544001> ld64 does not honor -arch_multiple
	* ld.cpp: If fOptions.printArchPrefix(), add architecture name to error message

2006-05-19      Nick Kledzik    <>

	<rdar://problem/4555973> Support S_16BYTE_LITERALS section types
	* src/MachOReaderRelocatable.hpp: support S_16BYTE_LITERALS
	* src/MachOWriterExecutable.hpp: support S_16BYTE_LITERALS

2006-05-19      Nick Kledzik    <>

	<rdar://problem/4548803> "warning can't parse dwarf compilation unit info" warnings building debug
	* src/MachOReaderRelocatable.hpp: fix bugs in dwarf line table parsing

----- Tagged ld64-55

2006-05-18      Nick Kledzik    <>

	<rdar://problem/4534339> Default the pagezero size to 4GB for x86-64
	* src/Options.cpp: Chnage default the pagezero size to 4GB for x86-64

2006-05-18      Nick Kledzik    <>

	<rdar://problem/4552825> x86_64 CarbonCore fails to link with "atom not found in symbolIndex"
	* src/MachOWriterExecutable.hpp: in buildObjectFileFixups() don't call addObjectRelocs() on kNoFixUp references

2006-05-18      Nick Kledzik    <>

	<rdar://problem/4553555> ld64: .section defaults to read-only
	* src/MachOReaderRelocatable.hpp: default unknown segments to r/w

2006-05-18      Nick Kledzik    <>

	<rdar://problem/4551990> -fvisibility=hidden causes crashes for x86_64
	* src/MachOWriterExecutable.hpp: properly handle RIP relative tentative definitions

2006-05-12      Nick Kledzik    <>

	* src/Architectures.hpp: add x86::kAbsolute32
	* src/MachOReaderRelocatable.hpp: generate x86::kAbsolute32 for mdynamic-no-pic instructions
	* src/MachOWriterExecutable.hpp: process x86::kAbsolute32 reference kind

----- Tagged ld64-54

2006-05-11      Nick Kledzik    <>

	<rdar://problem/4545108> CF-393 failes to link for x86_64
	* src/MachOWriterExecutable.cpp: fix sign extension for Rel32 relocs in Writer<x86_64>::fixUpReferenceRelocatable

2006-05-11      Nick Kledzik    <>

	<rdar://problem/4501434> warning arch x86_64 not found using i386
	* src/ld.cpp: remove hack to allow x86_64 to link against i386 dylibs

2006-05-10      Nick Kledzik    <>

	<rdar://problem/4543754> x86_64: .objc_class_name symbol names scrambled
	* src/MachOReaderRelocatable.hpp: properly compute alignment of __OBJC __class sections

2006-05-08      Nick Kledzik    <>

	<rdar://problem/3894083> Support -dead_strip
	* src/Options.h/cpp: implement -why_load and -why_live.  Enable -dead_strip.
	* src/MachOReaderArchive.hpp: implement -why_load
	* src/MachOReaderRelocatable.hpp: suppress GCC_except_table* symbols in final output
	* src/ld.cpp: implement dead code stripping
	* unit-tests/test-cases/dead_strip: added

----- Tagged ld64-53

2006-05-05      Nick Kledzik    <>

	* src/Options.cpp: make 10.4 be minimum OS version for newer architectures

2006-05-05      Nick Kledzik    <>

	<rdar://problem/4147604> N_SO symbols in 64-bit builds have a zero address for n.n_value
	* src/ld.cpp: for SO stabs, associate first and last atom in the SO range
	* src/MachOWriterExecutable.hpp: use atom associated with SO stab to set ins n_value

2006-05-05      Nick Kledzik    <>

	* MachOWriterExecutable.hpp: fix end FUN stab to have length of function

2006-05-02      Nick Kledzik    <>

	<rdar://problem/4496250> 64-bit main executables should have 4GB zero page by default
	* src/Opptions.cpp: change default pagezero_size to 4GB for ppc64
	<rdar://problem/4492850> 64 bit: apps with -mdynamic-no-pic seg fault when page zero > 4GB
	* src/MachOWriterExecutable.cpp: rework pagezero for ppc64 so that if any mdynamic-no-pic code
	is found, the code is kept in the low 2GB, and a new segment is create to map away up to 4GB.

2006-05-02      Nick Kledzik    <>

	* src/Opptions.cpp: remove warning about -stack_addr not specified.  Add warning if 32-bit stack
	overlaps shared region

----- Tagged ld64-52.1

2006-05-01      Nick Kledzik    <>

	* src/MachOReaderRelocatable.cpp: rework handleAnonymousNonLazyPointers() to handle anl's in the middle
	the __data section too.

----- Tagged ld64-52

2006-04-28      Nick Kledzik    <>

	<rdar://problem/4513304> 64-bit: 9A152 TextEdit crashes in dlopen on bring-up
	* src/MachOReaderRelocatable.cpp: rework anonymous non-lazy-pointer detection

2006-04-28      Nick Kledzik    <>

	<rdar://problem/4528054> 64 Bit: Development build of ppc64 TextEdit gets confused about static variables
	* src/MachOReaderRelocatable.cpp: mark non-lazy-pointer atoms as scopeTranslationUnit if targetting a static symbol

2006-04-21      Nick Kledzik    <>

	* src/Options.cpp: fix default address for ppc64 custom stack
	* src/MachOWriterExecutable.cpp: fix set up of ppc64 custom stack

2006-04-14      Nick Kledzik    <>

	* src/Options.cpp: fix -sub_library processing to work it dylib is specifed with leaf name

----- Tagged ld64-51.1

2006-04-13      Nick Kledzik    <>

	<rdar://problem/4513304> 64-bit: 9A152 TextEdit crashes in dlopen on bring-up
	* src/MachOReaderRelocatable.hpp: when detecting anonymous non-lazy-pointers disqualify data
	that points to static or global symbols
	* src/ld.cpp: print version of ld64 in error messages

----- Tagged ld64-51

2006-04-11      Nick Kledzik    <>

	<rdar://problem/4499168> exported symbols not properly stripped
	* src/MachOReaderRelocatable.hpp: enable AnonymousAtom::setScope()

2006-03-31      Nick Kledzik    <>

	<rdar://problem/4498391> ld64 fails when linking debug ppc64 HIToolbox
	* src/MachOReaderRelocatable.hpp: handle anonymous non-lazy pointers encoded with local relocations
	* src/MachOWriterExecutable.hpp: in -r mode, only generated INDIRECT_SYMBOL_LOCAL for non-lazy targets that

2006-03-31      Nick Kledzik    <>

	<rdar://problem/4496499> ld64 should remove generated file if link errors out
	* src/MachOWriterExecutable.hpp: catch exceptions in Writer<A>::write(), delete output file, and rethrow

----- Tagged ld64-50

2006-03-29      Nick Kledzik    <>

	* src/MachOReaderRelocatable.hpp: synthesize .objc_class_name symbols
	* src/MachOFileAbstraction.hpp: use strncpy for sect/seg names to zero fill trailing space

2006-03-28      Nick Kledzik    <>

	* src/MachOReaderRelocatable.hpp: fix spurious warning about dwarf line info

----- Tagged ld64-49.1

2006-03-25      Nick Kledzik    <>

	* MachOWriterExecutable.hpp : don't complain about ppc64 dyld being based > 4GB

----- Tagged ld64-49

2006-03-24	Nick Kledzik	<>

	* src/MachOWriterExecutable.hpp: dyld is allowed to have synthesized non-lazy pointers
	<rdar://problem/4488113> ld64 is after processing bad GSYM stabs
	* src/MachOReaderRelocatable.hpp: if a GSYM is found that does not match any data symbol, suppress it

2006-03-23	Nick Kledzik	<>

	* src/MachOWriterExecutable.hpp: in Writer<x86>::fixUpReferenceFinal() fix when x86::kPointer is for an
	external relocation

2006-03-23	Nick Kledzik	<>

	* src/Options.cpp: change macosx-min-version to default to a per-architecture setting
	  add warning if -pagezero_size is not page aligned
	* src/MachOWriterExecutable.hpp: properly handle external relocations for ppc64 with 4GB pagezero
	* src/machochecker.cpp: sanity check relocation records

----- Tagged ld64-48

2006-03-21	Nick Kledzik	<>

	<rdar://problem/4481406> 64bit: passing function pointer to another function passes the wrong function address
	* src/MachOReaderRelocatable.hpp: when processing a non-lazy pointer to a static function, don't accidentally
	match it to a STAB symbol.

2006-03-21	Nick Kledzik	<>

	<rdar://problem/4180168> .eh symbols make up 13% of libstdc++'s stripped binary size
	* src/ObjectFile.h: add ReaderOptions.fForFinalLinkedImage
	* src/Options.cpp: setup ReaderOptions.fForFinalLinkedImage
	* src/MachOReaderRelocatable.hpp: mark .eh symbols kSymbolTableNotIn when building final linked image

2006-03-21	Nick Kledzik	<>

	<rdar://problem/4473742> ld64 does not parse optional second argument to -filelist
	* unit-tests/test-cases/filelist: added
	* src/Options.cpp: in Options::loadFileList() handle comma option

----- Tagged ld64-47.1

----- Tagged ld64-47

----- Tagged ld64-46

2006-03-10	Nick Kledzik	<>

	<rdar://problem/4419505> ld64 should figure out architecture from .o files
	* unit-tests/test-cases/auto-arch: added
	* src/ld.cpp: added Linker::inferArchitecture() to scan .o files are infer architecture to link
	* src/MachOReaderArchive.hpp: enhanced validFile() to look deeper into archive and really valdate
	* src/MachOWriterExecutable.hpp: stop using fOptions.architecture()
	* src/Options.cpp: stop defaulting to ppc64

2006-03-09	Nick Kledzik	<>

	<rdar://problem/4465004> Need "intentionally left blank" dylib stubs
	* unit-tests/include/common.makefile: add VALID_ARCHS
	* unit-tests/run-all-unit-tests: set up VALID_ARCHS
	* unit-tests/test-cases/blank-stubs: add test case
	* src/ld.cpp: in addDylib(), detect and ignore blank stubs
	* src/MachOReaderDylib.hpp: in constructor, handle blank stubs

2006-03-09	Nick Kledzik	<>

	<rdar://problem/4471424> crash in stub with 2GB pagezero
	* src/MachOWriterExecutable.hpp: StubAtom<ppc64> can't be no-pic if a large zero-page is used

2006-03-06	Nick Kledzik	<>

	* src/Options.cpp: addSectionAlignment, warn if -sectalign alignment is not a power of two

----- Tagged ld64-45

2006-03-06	Nick Kledzik	<>

	<rdar://problem/4466930> LP64/9A122: ld64: hang when trying to link DiscRecording framework
	* src/Options.cpp: addSectionAlignment, warn on zero.  Use log2() for alignment conversion

----- Tagged ld64-44

2006-03-04	Nick Kledzik	<>

	* src/MachOReaderRelocatable.hpp: fix again test for detection of anonymous non-lazy-pointer.
	Error out if .o file contains old __DWARFA style dwarf.

2006-03-02	Nick Kledzik	<>

	* src/ld.cpp: only re-map page aligned sub-parts of a fat file.  A conformat mmap() requires alignment.

----- Tagged ld64-43

2006-03-02	Nick Kledzik	<>

	* src/MachOReaderRelocatable.hpp: <rdar://problem/4464370> tighten detection of anonymous non-lazy-pointer

----- Tagged ld64-42

2006-02-28	Nick Kledzik	<>

	* src/MachOReaderRelocatable.hpp: fix x86 __IMPORT permissions for class Segment

2006-02-28	Nick Kledzik	<>

	<rdar://problem/4461240> SWB: ld64-37 (can't resolve symbol ___dso_handle)
	* src/MachOWriterExecutable.hpp: add class DsoHandleAtom

2006-02-28	Nick Kledzik	<>

	* unit-tests/test-cases/literals-coalesce-alignment: added test case
	* src/ld.cpp: when coalescing strings pick one with greater alignment
	<rdar://problem/4458660> ld64: CG link failed because lo14 reference to anonymous non-lazy-pointer not aligned
	* unit-tests/test-cases/relocs-c/test.c: tweak to fail like 4458660
	* src/MachOReaderRelocatable.hpp: detect anonymous non-lazy-pointer and transform into real non-lazy-pointers

----- Tagged ld64-41

2006-02-24	Nick Kledzik	<>

	* src/Options.cpp: Warning about -no_dead_strip_inits_and_terms and -i options.
					   Fix -weak-l option.

----- Tagged ld64-40

2006-02-24	Nick Kledzik	<>

	<rdar://problem/4454698> Leopard9A113: ppc64 libstdc++.dylib initializer crashes in pthread_once
	* unit-tests/test-cases/multiple-entry-points: added
	* src/MachOReaderRelocatable.hpp: make sure that if there are multiple symbols with the same
	address, that we properly make zero length atoms for all but last symbol

2006-02-24	Nick Kledzik	<>

	* src/Options.cpp: <rdar://problem/4456093> ld64 doesn't realpath(3) B&I tracing paths

2006-02-24	Nick Kledzik	<>

	* src/Options.cpp: <rdar://problem/4457078> 9A110: ld64 can't deal with section names >16 chars

2006-02-23	Nick Kledzik	<>

	* src/MachOWriterExecutable.hpp:  use vector.reserve() to minimize re-allocations
	* src/Options.cpp: use vector.reserve() to minimize re-allocations
	* src/MachOReaderRelocatable.hpp:  use vector.reserve() to minimize re-allocations
	* src/MachOReaderDylib.hpp:  use vector.reserve() to minimize re-allocations
	* src/ld.cpp:  use vector.reserve() to minimize re-allocations

2006-02-23	Nick Kledzik	<>

	<rdar://problem/4455927> ld64 creates corrupt executables (and has malloc errors) with -headerpad option
	* src/MachOWriterExecutable.hpp: Change LoadCommandsPaddingAtom<A>::setSize() to update fLargestAtomSize
	* unit-tests/test-cases/header-pad: added

2006-02-23	Nick Kledzik	<>

	<rdar://problem/4455192> ld64 creates invalid static executables
	* src/MachOWriterExecutable.hpp: Change MachHeaderAtom<A>::copyRawContent() to create correct header
	for static executables.  Change SymbolTableLoadCommandsAtom to skip LC_DYSYMTAB for static executables
	* src/machochecker.cpp: Add tests that static executables are well formed
	* unit-tests/test-cases/static-executable: added

2006-02-22	Nick Kledzik	<>

	* src/Options.cpp: <rdar://problem/4453468> chnage printf on unknown arg to a throw

----- Tagged ld64-39

2006-02-20	Nick Kledzik	<>

	* unit-tests/test-cases/read-only-relocs: added new test case
	* src/MachOWriterExecutable.hpp: <rdar://problem/4448922> detect and error on relocs in read-only sections
	* src/MachOReaderRelocatable.hpp: fix parsing of i386 absolute addressing relocs

2006-02-20	Nick Kledzik	<>

	* unit-tests/test-cases/stabs-coalesce: added new test case
	* src/ld.cpp.hpp: <rdar://problem/4449226> in collectStabs removed unused stabs

----- Tagged ld64-38

2006-02-17	Nick Kledzik	<>

	* src/MachOWriterExecutable.hpp: <rdar://problem/4434578> set correct n_sect field of stabs

2006-02-15	Nick Kledzik	<>

	* src/MachOReaderArchive.hpp: <rdar://problem/4441920> with -all_load skip over both kinds of SYMDEFs
	* unit-tests/test-cases/archive-basic/Makefile: add -all_load test case

----- Tagged ld64-37

2006-02-13  Eric Christopher  <>

	* src/MachOWriterExecutable.hpp (assignFileOffsets): Simplify. Add comments.
	Adjust whitespace.

2006-02-13	Nick Kledzik	<>

	* src/MachOWriterExecutable.hpp: in Writer<x86>::fixUpReferenceRelocatable() fix kPCRel32 for external case

2006-02-13	Nick Kledzik	<>

	* unit-tests/test-cases/zero-fill: added
	* src/machochecker.cpp: check that S_ZEROFILL have no file offset
	* src/MachOWriterExecutable.hpp: rework assignFileOffsets() to fix rdar://problem/4441145

2006-02-12	Nick Kledzik	<>

	* src/MachOReaderRelocatable.hpp: <rdar://problem/4440880> fix use of first zero-length c-string in .o file

2006-02-12	Nick Kledzik	<>

	* src/MachOReaderRelocatable.hpp: <rdar://problem/4440905> fix uninitialized fAlignment

2006-02-12	Nick Kledzik	<>

	* unit-tests/test-cases/relocs-asm/relocs-asm.s: add pointer-diff cases
	* src/Architectures.hpp: make size explicit in ppc/ppc64 kPointerDiff
	* src/MachOReaderRelocatable.hpp: don't allow kPointerDiff64 for ppc (just ppc64)
	* src/MachOWriterExecutable.cpp: set proper r_length for ld -r of kPointerDiff

----- Tagged ld64-36

2006-02-08	Nick Kledzik	<>

	* src/MachOReaderRelocatable.cpp: rdar://problem/4438677 Handle when a .o file dwarf line info entries but no functions

2006-02-08	Nick Kledzik	<>

	* src/MachOWriterExecutable.cpp: Properly set address of first TEXT section
	Keep S_COALESCED attribute for __eh_frame

2006-02-08	Nick Kledzik	<>

	* src/ld.cpp: Temporarily turn allowable client errors into warnings
	* unit-tests/test-cases/allowable-clientMakefile: Temporarily let warnings be ok for above
	* src/MachOWriterExecutable.hpp: fix ld -r to not use external relocations for symbols make static

2006-02-08	Nick Kledzik	<>

	* src/ld.cpp: A sibling in an umbrella can always link with its other siblings
	* unit-tests/test-cases/allowable-client: add test case for above

2006-02-08	Nick Kledzik	<>

	* src/MachOReaderRelocatable.hpp: support LOCAL non-lazy pointers to hidden symbols
	* src/machochecker.cpp: verify indirect symbol table
	* unit-tests/test-cases/private-non-lazy: added test case

2006-02-07	Nick Kledzik	<>

	* src/MachOWriterExecutable.hpp: fix calculation of file offsets in ld -r mode
	* src/machochecker.cpp: verify segment file offsets are within file

----- Tagged ld64-35

2006-02-06	Nick Kledzik	<>

	* ld.cpp: allow parent of sub-framework to link
	* unit-tests/test-cases/allowable-client/Makefile: added cases for parent and clients of parent

2006-02-04	Nick Kledzik	<>

	* unit-tests/test-cases/relocs-c/test.c:  added some array cases
	* src/MachOReaderRelocatable.hpp: factor out makeReferenceToEH()
	* src/MachOWriterExecutable.hpp: add initial support for non-lazy pointer synthesis

----- Tagged ld64-34

2006-02-04	Nick Kledzik	<>

	* src/ld.cpp: <rdar://problem/4432917> fix -no_arch_warnings
				  <rdar://problem/4432932> fix -undefined warning
				Do BINCL/EINCL optimization for gfull stabs
				Implement "essential symbols" for stabs (-Sp)
				Fix allowable clients to only test on direct libraries
	* src/MachOReaderRelocatable.hpp: support BINCL/EINCL stabs

2006-02-03	Nick Kledzik	<>

	* src/machochecker.cpp: add code to check load command alignment
	* src/MachOWriterExecutable.hpp: make load command alignment depend on architecture

2006-02-03	Nick Kledzik	<>

	* unit-tests/test-cases/literals-coalesce: added
	* src/MachOReaderRelocatable.hpp: assure all targets of low14 ppc relocs are at least 4-byte alignmented

----- Tagged ld64-33

2006-02-02	Nick Kledzik	<>

	* src/MachOReaderRelocatable.hpp: properly coalesce 8-byte literals
	* src/MachOWriterExecutable.hpp: support ppc64::kPointerDiff32

----- Tagged ld64-32

2006-02-02	Nick Kledzik	<>

	* src/MachOReaderRelocatable.hpp: support anonymous zero fill atoms

2006-02-02	Nick Kledzik	<>

	* src/ld.cpp: A weak definition is good enough, do not search archives for a non-weak one
	* unit-tests/test-cases/archive-weak: add test case for above
	* src/MachOReaderRelocatable.hpp: an atom should never have a by-name reference to itself
	* src/Options.cpp: prevent .eh symbols from being exported via a -exported_symbols_list

2006-02-01	Nick Kledzik	<>

	* src/MachOReaderRelocatable.hpp: Support -macosx_version_min 10.5

2006-02-01	Nick Kledzik	<>

	* src/MachOReaderRelocatable.hpp: don't try to parse debug_line dwarf if no symboled atoms

----- Tagged ld64-31

2006-02-01  Eric Christopher  <>

	* unit-tests/test-cases/allow-stack-execute/Makefile: Move otool handling...
	* unit-tests/include/common.makefile: ... here.
	* unit-tests/bin/ New.
	* unit-tests/test-cases/no-uuid: Ditto.
	* src/ld.cpp (Linker::) Add fCreateUUID.
	(::Linker): Initialize.
	(::collectStabs): Use. Set if dwarf or we have a UUID already.
	(::writeOutput): Pass as argument to Writer::write along with option.
	* src/Options.h (Option::emitUUID): Declare.
	(Option::fEmitUUID): Ditto.
	* src/Options.cpp (Option::emitUUID): New.
	(parse): Handle -no_uuid.
	* src/MachOReaderRelocatable (Reader::Reader): Handle LC_UUID.
	* src/ExecutableFile.h (Writer::Write): Add createUUID boolean.
	* src/MachOWriterExecutable: Add UUID forward declaration.
	(fUUIDAtom): New.
	(UUIDLoadCommandAtom): Emit LC_UUID if fEmit. New function emit. Size
	to zero at start.
	(Writer::writer): Add handle for LC_UUID. If createUUID emit LC_UUID.
	(MachHeaderAtom::copyRawContent): Don't count a load command if its size is
	(UUIDLoadCommandAtom::copyRawContent): Depend on fEmit.

2006-01-31	Nick Kledzik	<>

	* unit-tests/test-cases/dwarf-debug-notes : Added
	* src/ld.cpp: don't generate debug note for .eh symbols
	* src/MachOReaderRelocatable.hpp: make dwarf line info to atom matching faster and better

2006-01-31	Nick Kledzik	<>

	* ld64.xcodeproj/project.pbxproj : Make buildable on Leopard
	* src/MachOFileAbstraction.hpp: make buildable without latest cctools headers

2006-01-31	Nick Kledzik	<>

	* src/MachOReaderRelocatable.hpp: better error message for bad relocs
	* src/ObjectDump.cpp: add emacs tab settings
	* src/SectCreate.h: ditto
	* src/SectCreate.cpp: ditto
	* src/machochecker.cpp: ditto
	* src/ExecutableFile.h: ditto

2006-01-30  Eric Christopher  <>

	* src/ExecutableFile.h: Indent.

2006-01-30	Nick Kledzik	<>

	* src/MachOReaderRelocatable.hpp: performance improvements
	* src/ld.cpp: now that stubs are synthesized in write, don't need to special case anymore

2006-01-30	Nick Kledzik	<>

	* src/MachOReaderRelocatable.hpp: fix parsing of pcc relocs
	* unit-tests/test-cases/relocs-asm/relocs-asm.s: add test case for above

2006-01-29	Nick Kledzik	<>

	* unit-tests/test-cases/weak_import: added test case
	* src/ld.cpp: move code for weak_import mismatch to writer
	* src/ObjectFile.h: remove ImportWeakness methods
	* src/MachOReaderDylib.hpp: ditto
	* src/SectCreate.cpp: ditto
	* src/Architectures.hpp: add new ReferenceKinds for weak_imports
	* src/MachOReaderRelocatable.hpp: implement new ReferenceKinds
	* src/MachOWriterExecutable.hpp: handle new ReferenceKinds and weak_import mismatches

2006-01-29	Nick Kledzik	<>

	* src/Options.cpp: verify -allow_stack_execute is only used on main executables

2006-01-29	Nick Kledzik	<>

	* src/MachOReaderRelocatable.hpp: sync with latest dwarf reader from Geoff
	* src/debugline.c: sync with latest dwarf reader from Geoff

2006-01-27  Eric Christopher  <>

	* src/ld.cpp (Linker::syntesizeStabs): Correct spelling. Update all uses.

2006-01-27  Eric Christopher  <>

	* src/Options.h (Options): Add hasExecutableStack, fExecutableStack.
	* src/Options.cpp (Options::hasExecutableStack): New.
	(Options::parse): Parse -allow_stack_execute.
	* src/MachOWriterExecutable.hpp (MachHeaderAtom::copyRawContent):
	* unit-tests/include/common.makefile (FAIL_IF_EMPTY): New.
	* unit-tests/bin/ New file.
	* unit-tests/test-cases/allow-stack-execute: New directory.

2006-01-27	Nick Kledzik	<>

	* src/MachOFileAbstraction.hpp: rely on latest system headers
	* src/MachOWriterExecutable.hpp: fix ppc stubs.
		wrote new relocationNeededInFinalLinkedImage() to replace common code

2006-01-27  Eric Christopher  <>

	* src/ld.cpp (logTraceInfo): New.
	(Linker::addArchive): Use.
	(Linker::addDylib): Ditto.
	* src/ObjectFile (ReaderOptions::fTraceOutputFile): New.
	* src/MachOReaderArchive.hpp (Reader::Reader): Move trace
	logging to Linker::addArchive.
	* src/Options.cpp (parsePreCommandLineEnvironment): Check
	LD_PRINT_FILE if tracing dylibs or archives.

2006-01-26	Nick Kledzik	<>

	* src/MachOWriterExecutable.hpp: handle NULL strings in SO debug notes

2006-01-26	Nick Kledzik	<>

	* src/MachOWriterExecutable.hpp: fix header padding calculation and thread state

2006-01-26	Nick Kledzik	<>

	Rewrite all stabs processing.
	Move sythesize of debug notes into ld.cpp

2006-01-26	Nick Kledzik	<>

	* src/MachOWriterExecutable.hpp: fix ppc and ppc64 stub relocs

2006-01-25	Nick Kledzik	<>

	* ld64.xcodeproj/project.pbxproj: special case building in Curry

2006-01-25	Nick Kledzik	<>

	* src/MachOWriterExecutable.hpp: fix bugs in stub/lazy-pointer synthesis

2006-01-24  Eric Christopher  <>

	* src/ld.cpp (Linker::createReaders): Change logging title to XBS.
	(Linker::addDylib): Ditto.
	* src/MachOReaderArchive.hpp (Reader::Reader): Ditto.
	* src/Options.h (fPrintOptions): New.
	* src/Options.cpp (Options::Options): Initialize above.
	(Options::checkForFile): Change logging title to XBS.
	(Options::findFramework): Ditto.
	(Options::parse): Add log for options.
	(Options::parsePreCommandLineEnvironmentSettings): Add LD_TRACE_ARCHIVES,

2006-01-24	Nick Kledzik	<>

	* src/MachOReaderRelocatable.hpp: better C++ eh parsing

2006-01-23  Eric Christopher  <>

	* unit-tests/bin/ New.
	* unit-tests/include/common.makefile (FAIL_IF_SUCCESS): Use.
	* unit-tests/allowable-client: New test.
	* src/ld.cpp (Linker::addDylib): Check allowable clients before adding dylib.
	* src/Options.h (allowableClients): New.
	(clientName): Ditto.
	(fAllowableClients): Ditto.
	(fClientName): Ditto.
	* src/Options.cpp: Implement above.
	(parse): Handle -allowable_client and -client_name.
	* src/MachOReaderDylib.hpp (getAllowableClients): New.
	(fAllowableClients): Ditto.
	(Reader): Process LC_SUB_CLIENT load command.
	* src/ObjectFile.h (parentUmbrella): New.
	(getAllowableClients): New.
	* src/MachOWriterExecutable.hpp (AllowableClientLoadCommandsAtom): New.

2006-01-23	Nick Kledzik	<>

	* unit-tests/test-cases/archive-basic: added
	* src/ld.cpp: fix shadowed local variable
	* src/FileAbstraction.hpp: <rdar://problem/4417372> ld64 shouldn't inline when building debug

2006-01-23	Nick Kledzik	<>

	* src/ld.cpp: fix symbol not found error message
	* src/MachOReaderDylib.hpp: add logging to hash table
	* src/MachOReaderRelocatable.hpp: enable stabs processing. Handle static functions with stubs
									handle labeled cstrings.
	* src/MachOWriterExecutable.hpp: properly suppress atoms not in symbol table. fix low14 error check.
									add StubAtomHelper.
	* unit-tests/test-cases/relocs-literals/test.c: add more interesting edge cases

2006-01-17	Nick Kledzik	<>

	* src/MachOReaderRelocatable.hpp: tweaks to synthesizing debug notes

2006-01-16	Nick Kledzik	<>

	* src/debugline.{sh}: added
	* src/MachOReaderRelocatable.hpp: synthesize debug notes SOL from dwarf
	* src/MachOWriterExecutable.hpp: fix lazy pointer section
	* src/ObjectDump.hpp: Fix conditionalization
	* unit-tests/test-cases/dwarf-strip: added

2006-01-11	Nick Kledzik	<>

	* src/MachOReaderRelocatable.hpp: support Tiger crt1.o build with old ld64
	* src/ObjectDump.hpp: Support -arch option

2006-01-10	Nick Kledzik	<>

	* src/MachOWriterExecutable.hpp: fix stubs for ppc64
	* src/MachOFileAbstraction.hpp: fix typo for macho_routines
	* ld64.xcodeproj/project.pbxproj: add machochecker target
	* src/machochecker.cpp: new skeleton for checking mach-o file bit
	* unit-tests/: Add support for running machochecker

2006-01-10	Nick Kledzik	<>

	* src/MachOReaderRelocatable.hpp: warn if dwarf can't be parsed
	* src/MachOReaderArchive.hpp: modTime for OSO stabs from archives is .a modTime

2006-01-09	Nick Kledzik	<>

	* track modification time of .o files so that sythesized OSO stab will have it

2006-01-09	Nick Kledzik	<>

	* src/MachOFileAbstraction.hpp: add macho_uuid_command
	* src/MachOWriterExecutable.cpp: add UUID load command to generated files

2006-01-09	Nick Kledzik	<>

	* src/MachOReaderDylib.hpp: no longer keep dylib memory mapped
	* src/ld.cpp: don't track dylib sizes because they are not longer memory mapped

2006-01-05	Nick Kledzik	<>

	* src/MachOReaderRelocatable.hpp: support new relocations

2006-01-05	Nick Kledzik	<>

	* src/MachOReaderDylib.hpp: support MH_DYLIB_STUB
	* src/MachOReaderRelocatable.hpp: Add Geoff's comp unit extractor

2006-01-05	Nick Kledzik	<>

	refactor: transform Atom::dontStripName() to getSymbolTableInclusion()
	* src/ld.cpp: pass dyld_stub_binding_helper to writer
	* src/MachOReaderRelocatable.hpp: update synthesized stabs
	  Ignore stubs and lazy pointers in .o files
	  Support initializers and terminators
	* src/MachOWriterExecutable.hpp: synthesize stubs and lazy pointers as needed
	* ld64.xcodeproj/project.pbxproj: change Release target to build with dwarf

2006-01-03  Eric Christopher  <>

	* src/Options.h (multipleDefinitionsInDylibs): Declare.
	(overridingDefinitionInDependentDylib): Ditto.
	(warnOnMultipleDefinitionsInObjectFiles): Ditto.
	(multiplyDefined): Remove.
	(multiplyDefinedUnused): Ditto.
	(fMultiplyDefined): Ditto.
	(fWarnOnMultiplyDefined): New.
	(fMultiplyDefinedDynamic): Ditto.
	* src/Options.cpp (Options::Options): Initialize above.
	(overridingDefinitionInDependentDylib): New.
	(multipleDefinitionsInDylibs): Ditto.
	(warnOnMultipleDefinitionsInObjectFiles): Ditto.
	(parse): Update comments. Fix parsing of -y option.
	Update error message for -dead_strip. Parse above

2006-01-02	Nick Kledzik	<>

	* Refactor: move Atom::writeContent() to Writer

2005-12-23	Nick Kledzik	<>

	* Reworked, simplify, and document test harness
	* unit-tests/README: Added

2005-12-23	Nick Kledzik	<>

	* src/MachOReaderRelocatable.hpp: fixes for Objective-C
	* unit-tests/test-cases/relocs-objc: Added

2005-12-22	Nick Kledzik	<>

	* src/MachOReaderRelocatable.hpp: fix check that next reloc is pair
	* src/MachOReaderRelocatable.hpp: Add code to synthesize essential stabs from dwarf

2005-12-21	Nick Kledzik	<>

	* src/MachOReaderRelocatable.hpp: Fix parsing of literal sections
	* src/MachOWriterExecutable.hpp: Fix writing of literal sections
	* unit-tests/test-cases/relocs-literals: Added

2005-12-15  Eric Christopher  <>

	* src/Options.h (enum Treatment): New.
	(enum PICTreatment): Delete.
	(enum VersionMin): New.
	(prebind): Declare.
	(macosxVersionMin): Ditto.
	(multiplyDefined): Ditto.
	(multiplyDefinedUnused): Ditto.
	(setVersionMin): Ditto.
	(setPICTreatment): Delete.
	(setReadOnlyRelocTreatment): Ditto.
	(picTreatment): Adjust return type.
	(parseTreatment): New.
	(fPrebind): Ditto.
	(fVersionMin): Ditto.
	(fPICTreatment): Change type.
	(fMultiplyDefined): New.
	(fMultiplyDefinedUnused): Ditto.
	(fLimitUndefinedSymbols): Ditto.

	* src/Options.cpp: Fix whitespace. Add comments on options.
	(Options::Options): Add initializers for new variables.
	(Options::prebind): New.
	(Options::macosxVersionMin): Ditto.
	(Options::parseTreatment): Ditto.
	(Options::setVersionMin): Ditto.
	(Options::setReadOnlyRelocTreatment): Delete.
	(Options::setPICTreatment): Ditto.
	(Options::Parse): Update for above. Add comments.

2005-12-15	Nick Kledzik	<>

	* src/MachOReaderRelocatable.hpp: Add comments about dwarf

2005-12-14	Nick Kledzik	<>

	* src/ELFFileAbstraction.hpp: Added
	* src/ELFReaderRelocatable.hpp: Added
	* Lot of fixes for new architecture
	* Added __OPEN_SOURCE__ to "Preprocessor Macros" to disable new architecture support by default

2005-12-13	Nick Kledzik	<>

	* src/MachOReaderRelocatable.hpp: check for S_ATTR_DEBUG and ignore those sections
	* unit-tests/test-cases/dwarf-ignore: added

2005-12-12	Nick Kledzik	<>

	* Added test harness and three initial tests:
		relocs-asm, relocs-c, and hello-world

2005-12-12	Nick Kledzik	<>

	* src/MachOReaderRelocatable.hpp: Massive refactoring:
		Now there are three Atom classes, Chopping into Atoms
		is done on label boundaries or by knowledge of special
		sections, Share lots of ppc/ppc64 code.
	Stabs process code is temporarily disabled.

2005-12-12	Nick Kledzik	<>

	* src/ObjectDump.cpp: Add command line options: -no_content, -stabs, -no_sort

2005-12-11  Eric Christopher  <>

	* src/Options.cpp: Reformat.
	* src/Options.h: Ditto.

2005-12-07  Eric Christopher  <>

	* src/MachOReaderRelocatable.hpp (Atom::getAlignment):
	When calculating alignment of an Atom, take into account
	the alignment from which we pulled the Atom.

2005-12-06	Nick Kledzik	<>

	* src/Options.cpp src/Options.h: Add design comments

2005-12-05  Eric Christopher  <>

	* src/ld.cpp (Linker::createWriter): Uncomment ppc64 and
	i386 linkers.

2005-12-05  Eric Christopher  <>

	* ChangeLog: New file.

2005-12-02 	Nick Kledzik	<>

	* src/ObjectFile.h: Add design comments

2005-11-30 	Nick Kledzik	<>

	* Fix uses of __OPEN_SOURCE__

2005-11-28 	Nick Kledzik	<>

	* Refactor Atom to use getDefinitionKind()

2005-11-21 	Nick Kledzik	<>

	* src/MachOWriterExecutable.hpp: don't generate section for commons in -r mode

2005-11-18 	Nick Kledzik	<>

	* x86 tweaks

2005-11-18 	Nick Kledzik	<>

	* src/ObjectDump.cpp: make work with command line arguments

2005-11-18 	Nick Kledzik	<>

	* Massive rework to remove preprocessor conditionals and use templates

2005-11-14 	Nick Kledzik	<>

	* Created new Subversion repository for ld64 from cvs tag ld64-27.2