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1
2----- Tagged ld64-85
3
42008-04-29 Nick Kledzik <kledzik@apple.com>
5
6 * ld64.xcodeproj/project.pbxproj: <llvm-c/lto.h> is moving from /usr/local/include to /Developer/usr/local/include
7
8
92008-04-29 Nick Kledzik <kledzik@apple.com>
10
11 <rdar://problem/5829579> ld doesn't honor "rightmost" -syslibroot argument
12 * src/Options.cpp: if last -syslibroot is /, then ignore all syslibroots
13
14
152008-04-29 Nick Kledzik <kledzik@apple.com>
16
17 <rdar://problem/5866582> GLRendererFloat has bad __eh_frame section caused by mixing llvm-gcc and gcc object files
18 * src/MachOReaderRelocatable.hpp: make all atoms in __eh_frame section have 1-byte alignment
19 * src/MachOWriterExecutable.hpp: make __eh_frame section have pointer sized alignment
20
21
222008-04-17 Nick Kledzik <kledzik@apple.com>
23
24 * src/MachOReaderRelocatable.hpp: better cpu subtype support
25
26
272008-04-14 Nick Kledzik <kledzik@apple.com>
28
29 <rdar://problem/5733759> ld64 has bad ARM branch island check
30 * src/MachOWriterExecutable.hpp: in addBranchIslands() don't force large arm programs to fail
31
32
332008-04-10 Nick Kledzik <kledzik@apple.com>
34
35 * src/MachOWriterExecutable.hpp: fix stubs used with lazy dylibs
36
37
38----- Tagged ld64-84.4
39
402008-04-10 Nick Kledzik <kledzik@apple.com>
41
42 <rdar://problem/5847206> SPEC2000/eon built with -mdynamic-no-pic won't run
43 * src/Architectures.hpp: added arm::kReadOnlyPointer
44 * src/MachOReaderRelocatable.hpp: generate arm::kReadOnlyPointer
45 * src/MachOWriterExecutable.hpp: use arm::kReadOnlyPointer
46 * src/machochecker.cpp: allow MH_PIE bit
47 * unit-tests/test-cases/switch-jump-table: added test cases
48
49
50----- Tagged ld64-84.3
51
522008-04-09 Nick Kledzik <kledzik@apple.com>
53
54 <rdar://problem/5852023> -undefined dynamic_lookup busted
55 * src/ld.cpp: don't create proxy atom when scanning for dylib duplicates
56 * unit-tests/test-cases/tentative-and-archive: use -undefined dynamic_lookup
57
58
59----- Tagged ld64-84.2
60
612008-04-04 Nick Kledzik <kledzik@apple.com>
62
63 * src/ld.cpp: don't add .eh symbols to symbol table in -r mode
64 * unit-tests/test-cases/eh-coalescing-r: update to test out of order coalescing
65
66
67----- Tagged ld64-84.1
68
692008-03-28 Nick Kledzik <kledzik@apple.com>
70
71 <rdar://problem/5720961> ld should prefer architecture-specific variant over generic in fat object file
72 * src/Options.cpp: fully process -arch arguments into fArchitecture and fSubArchitecture
73 * src/ld.cpp: when -arch with a subtype is used, try to find the exact subtype from fat files
74 * unit-tests/test-cases/cpu-sub-types-preference: added test cases for arm and ppc
75
76
77----- Tagged ld64-84
78
792008-03-28 Nick Kledzik <kledzik@apple.com>
80
81 * src/LTOReader.hpp: don't print lto version, if lto is unavailable
82
83
842008-03-26 Nick Kledzik <kledzik@apple.com>
85
86 <rdar://problem/5575399> Add LD_WARN_COMMONS to BigBear builds
87 * src/Options.cpp: Add support for LD_WARN_FILE which copies all warnings to a side file
88
89
902008-03-26 Nick Kledzik <kledzik@apple.com>
91
92 <rdar://problem/5797713> Need encryption tag in mach-o file
93 <rdar://problem/5811920> linker should adjust arm final linked images so __text is never on the same page as the load commands
94 * src/MachOFileAbstraction.hpp: add support for encryption_info_command
95 * src/Options.cpp: add support for LD_NO_ENCRYPT and -no_encryption
96 * src/MachOWriterExecutable.hpp: add EncryptionLoadCommandsAtom
97 * src/machochecker.cpp: validate LC_ENCRYPTION_INFO
98
99
1002008-03-25 Nick Kledzik <kledzik@apple.com>
101
102 <rdar://problem/5712533> ld64 does not recognize LLVM bitcode archive files
103 * src/MachOReaderArchive.hpp: renamed to src/ArchiveReader.hpp
104 * src/ArchiveReader.hpp: sniff each member and instantiate correct reader
105 * src/ld.cpp: rename mach_o::archive::Reader to archive::Reader
106 * ld64.xcodeproj/project.pbxproj: rename MachOReaderArchive.hpp to ArchiveReader.hpp
107 * unit-tests/test-cases/llvm-integration: added test case
108
109
1102008-03-25 Nick Kledzik <kledzik@apple.com>
111
112 <rdar://problem/5771658> ld64 should switch to new libLTO.dylib interface
113 <rdar://problem/5675690> Produce llvm bc file in 'ld -r' mode if all .o files are llvm bc
114 * src/LTOReader.hpp: rewrite from LLVMReader.hpp to use new lto_* C interface
115 * unit-tests/test-cases/llvm-integration: update and comment
116 * ld64.xcodeproj/project.pbxproj: update to lazy load libLTO.dylib
117 * src/ld.cpp: rework and simplify Linker::optimize()
118 * src/ObjectDump.cpp: Add -nm option
119
120
1212008-03-25 Nick Kledzik <kledzik@apple.com>
122
123 * src/MachOReaderRelocatable.cpp: Fix some .objc_class_name_ off by one problem
124 * src/MachOWriterExecutable.cpp: Fix some .objc_class_name_ off by one problem
125
126
1272008-03-24 Nick Kledzik <kledzik@apple.com>
128
129 <rdar://problem/5814613> Xcode 3.1 breaks linkage of libgcj.9.dylib from gcc 4.3.0
130 * src/MachOWriterExecutable.cpp: Make sure all ivars in Writer are initialized.
131
132
1332008-03-21 Nick Kledzik <kledzik@apple.com>
134
135 * src/Options.cpp: warn if -seg1addr value is not page aligned
136
137
1382008-03-21 Nick Kledzik <kledzik@apple.com>
139
140 <rdar://problem/5806437> Move ARM support outside of __OPEN_SOURCE__
141 * src/ld.cpp: remove __OPEN_SOURCE__ around arm support
142 * src/LLVMReader.hpp: remove __OPEN_SOURCE__ around arm support
143 * src/MachOReaderDylib.hpp: remove __OPEN_SOURCE__ around arm support
144 * src/ObjectFile.h: remove __OPEN_SOURCE__ around arm support
145 * src/MachOReaderRelocatable.hpp: remove __OPEN_SOURCE__ around arm support
146 * src/OpaqueSection.hpp: Cover arm support inside __OPEN_SOURCE__ macro check
147 * src/MachOWriterExecutable.hpp: remove __OPEN_SOURCE__ around arm support
148 * src/ObjectDump.cpp: remove __OPEN_SOURCE__ around arm support
149 * ld64.xcodeproj/project.pbxproj: remove ARM_SUPPORT from config.h
150
151
152----- Tagged ld64-83.2
153
1542008-03-15 Nick Kledzik <kledzik@apple.com>
155
156 <rdar://problem/5801620> ld64-83 removes OBJC_CLASS_$ symbols from projects, causes catastrophic results
157 * src/Options.cpp: restore "case CPU_TYPE_ARM" in switch statement for .objc_class symbols in .exp files
158 * unit-tests/test-cases/objc-exported_symbols_list: added test case
159
160
161----- Tagged ld64-83.1
162
1632008-03-14 Nick Kledzik <kledzik@apple.com>
164
165 <rdar://problem/5800466> -iphone_version_min ==> -iphoneos_version_min
166 * src/Options.cpp: support -iphoneos_version_min as well
167
168
169----- Tagged ld64-83
170
1712008-03-10 Nick Kledzik <kledzik@apple.com>
172
173 <rdar://problem/5791543> ld needs to strip iphone_version_min option if invoking ld_classic
174 * src/Options.cpp: suppress -iphone_version_min from being passed to ld_classic
175
176
1772008-03-04 Nick Kledzik <kledzik@apple.com>
178
179 <rdar://problem/4171253> ADOBE XCODE: Linker option to lazy load frameworks (cause dyld is too slow)
180 * src/MachOWriterExecutable.hpp: create lazy stubs and LC_LAZY_LOAD_DYLIB for lazy load dylibs
181 * src/Options.cpp: support -lazy-l, -lazy_library, and -lazy_framework
182 * src/MachOFileAbstraction.hpp: add LC_LAZY_LOAD_DYLIB and S_LAZY_DYLIB_SYMBOL_POINTERS until in cctools
183 * src/MachOReaderDylib.hpp: add isLazyLoadedDylib()
184 * src/ld.cpp: pass lazy helper atom to writer
185 * doc/man/man1/ld.1: document new options
186 * unit-tests/test-cases/lazy-dylib-objc: add test case
187 * unit-tests/test-cases/lazy-dylib: add test case
188
189
190----- Tagged ld64-82.7
191
1922008-03-07 Nick Kledzik <kledzik@apple.com>
193
194 <rdar://problem/5787149> duplicate symbol literal-pointer@__OBJC@__message_refs@...
195 * src/MachOReaderRelocatable.hpp: AnonymousAtom from S_LITERAL_POINTERS section should be weak
196 * unit-tests/test-cases/objc-selector-coalescing: added test case
197
198
199----- Tagged ld64-82.6
200
2012008-03-04 Nick Kledzik <kledzik@apple.com>
202
203 <rdar://problem/5779681> ld crashes building XsanFS for Snow Leopard Builds
204 * src/ld.cpp: add bool dylibsOnly parameter to addJustInTimeAtoms()
205 * unit-tests/test-cases/tentative-and-archive: added test case
206
2072008-03-04 Nick Kledzik <kledzik@apple.com>
208
209 <rdar://problem/5775822> ld64 should not force building with gcc 4.0
210 * ld64.xcodeproj/project.pbxproj: change rules to use "system" compiler instead of 4.0
211
212
2132008-02-29 Nick Kledzik <kledzik@apple.com>
214
215 <rdar://problem/5774730> Simulator frameworks are being build split-seg and not prebound
216 * src/Options.cpp: only splitseg if prebound
217
218
2192008-02-29 Nick Kledzik <kledzik@apple.com>
220
221 <rdar://problem/5774231> Linker should not make GSYM debug note for .objc_category_* symbols
222 * src/ld.cpp: suppress GSYM debug notes for absolute symbols
223 * unit-tests/test-cases/objc-category-debug-notes: added test case
224
225
2262008-02-29 Nick Kledzik <kledzik@apple.com>
227
228 <rdar://problem/5768970> non-ASCII CFString support is broken
229 * src/MachOReaderRelocatable.hpp: only name and coalesce cfstring constants if they use a __cstring
230 * unit-tests/test-cases/cfstring-utf16: add test case
231
232
2332008-02-25 Nick Kledzik <kledzik@apple.com>
234
235 <rdar://problem/5366363> ld -r -x
236 * doc/man/man1/ld.1: update man page to explain -r -x produces auto-stripped labels
237
238
239----- Tagged ld64-82.5
240
2412008-02-12 Nick Kledzik <kledzik@apple.com>
242
243 <rdar://problem/5738023> x86_64: -stack_size failure when large __bss is used
244 * src/ld.cpp: only move section already in __DATA segment to new __huge section
245 * unit-tests/test-cases/stack_size_no_addr: updated test case to add large bss section
246
247
248----- Tagged ld64-82.4
249
2502008-02-06 Nick Kledzik <kledzik@apple.com>
251
252 <rdar://problem/5726215> comdat warnings with ld -r of C++ .o files
253 * unit-tests/test-cases/eh-coalescing-r: added test case
254 * src/ld.cpp: in ld -r mode don't warn about if .eh symbols are not static
255
256
2572008-02-06 Devang Patel <dpatel@apple.com>
258
259 <rdar://problem/5724990> LTO of Bom framework with -dead_strip causes ld(1) crash
260 * src/LLVMReader.hpp: Check fAtom while determining LLVMReference target binding.
261 * unit-tests/test-cases/llvm-integration/Makefile: Add new test case.
262 * unit-tests/test-cases/llvm-integration/a15.c: New.
263 * unit-tests/test-cases/llvm-integration/b15.c: New.
264 * unit-tests/test-cases/llvm-integration/c15.c: New.
265
2662008-02-05 Nick Kledzik <kledzik@apple.com>
267
268 * src/ld.cpp: fix for -arch ppc -mdynamic-no-pic -pie so PPC_RELOC_HA16 reloc is used
269
270----- Tagged ld64-82.3
271
2722008-02-04 Nick Kledzik <kledzik@apple.com>
273
274 <rdar://problem/5721186> ld doesn't seem to understand $ld$add$os... and $ld$hide$os... for 10.6 moves
275 * src/ObjectFile.h: add 10.6
276 * src/Options.cpp: add 10.6 support
277 * src/MachOReaderDylib.hpp: recognize $os10.6$
278
279
280----- Tagged ld64-82.2
281
2822008-01-30 Devang Patel <dpatel@apple.com>
283
284 <rdar://problem/5714833> Can't build 64-bit Intel binaries with LTO
285 <rdar://problem/5714787> ld64 fails to build with llvm-gcc-4.2
286 * src/LLVMReader.hpp: Fix character count typo in strncmp call.
287 Use const char * to initialize temp. string.
288 * ld64.xcodeproj/project.pbxproj: use $(DEVELOPER_DIR) in header search construction
289 instead of hard coding /Developer.
290
291----- Tagged ld64-82.1
292
2932008-01-23 Nick Kledzik <kledzik@apple.com>
294
295 * src/MachOReaderRelocatable.hpp: don't bus error if S_LITERAL_POINTERS is missing relocs
296
297
2982008-01-22 Nick Kledzik <kledzik@apple.com>
299
300 <rdar://problem/5695496> ld uses 32-bits in some places to hold addresses when parsing 64-bit mach-o files
301 * src/MachOReaderRelocatable.hpp: use AddrToAtomMap type that switch address to 64-bits for 64-bit archs
302 * src/MachOWriterExecutable.hpp: verify BR14 does not overflow for external relocs
303 * unit-tests/test-cases/relocs-c: update test case to slide addresses to verify x86_64 .o files
304
305
306----- Tagged ld64-82
307
3082008-01-18 Nick Kledzik <kledzik@apple.com>
309
310 <rdar://problem/5694612> Bad grammar used in ld warning: cannot exported hidden symbol
311 * src/ld.cpp: fix typo in warning string
312
313
3142008-01-16 Nick Kledzik <kledzik@apple.com>
315
316 <rdar://problem/5565074> Bundle Loader does not work anymore when loader is a bundle
317 <rdar://problem/5590203> ld warns of incorrect architecture when linking a bundle to a bundle
318 * src/MachOReaderDylib.hpp: support linking against bundles via -bundle_loader. Clean up error messages
319 * unit-tests/test-cases/bundle_loader: update test case
320
321
3222008-01-16 Nick Kledzik <kledzik@apple.com>
323
324 <rdar://problem/5366363> ld -r -x creates debug notes (stabs) when it should not with -x (keep only global symbols)
325 * src/Options.cpp: in reconfigureDefaults() if -r and -x then -S
326
327
3282008-01-16 Nick Kledzik <kledzik@apple.com>
329
330 <rdar://problem/5566068> if ld crashes while writing output file, it should delete the half written file
331 * src/MachOWriterExecutable.hpp: wrap open/write/close in try block and add signal handlers all to delete
332 output file on failure.
333
334
3352008-01-16 Devang Patel <dpatel@apple.com>
336
337 * src/LLVMReader.hpp: Use __gnu_cxx::hash_map instead of hash supported by LLVM.
338
339
3402008-01-16 Nick Kledzik <kledzik@apple.com>
341
342 <rdar://problem/5593537> GC-supported library can't be linked into GC-required executable
343 * src/ld.cpp: loosen constraint that all objc code must be compiled with same GC settings and
344 allow gc-compatible code to be linked into anything.
345 * unit-tests/test-cases/objc-gc-checks: update test case
346
347
3482008-01-15 Nick Kledzik <kledzik@apple.com>
349
350 <rdar://problem/5687976> no debug notes for custom named data
351 * src/ld.cpp: in synthesizeDebugNotes() check getSymbolTableInclusion() instead of for leading underscore
352 * unit-tests/test-cases/dwarf-debug-notes: update test case
353
354----- Tagged ld64-81.5
355
3562008-01-14 Devang Patel <dpatel@apple.com>
357
358 <rdar://problem/5683813> llvm-gcc-4.2 fails to build Sqlite 3.5.4 with -O4
359 * src/LLVMReader.hpp: Resolve proxy references. Collect new unbounded references
360 after optimization.
361 * src/ld.cpp: Resolve additional unbounded references after optimization.
362
363
3642008-01-14 Nick Kledzik <kledzik@apple.com>
365
366 <rdar://problem/5655246> PPC Leopard (Xcode 3.0) linker ld gets "Bus error" sometimes
367 * src/MachOReaderRelocatable.hpp: use same code as x86 to parse ppc and arm sect-diff relocs
368 * src/MachOWriterExecutable.hpp: use same code as x86 to write ppc and arm sect-diff relocs
369
370
3712008-01-11 Nick Kledzik <kledzik@apple.com>
372
373 <rdar://problem/5637618> PPC Leopard (Xcode 3.0) linker ld reports "unknown scattered relocation type 4"
374 * src/MachOReaderRelocatable.hpp: add PPC_RELOC_HI16 to scattered reloc parsing
375 * unit-tests/test-cases/relocs-asm/relocs-asm.s: added tests for scattered hi/lo instructions
376
377
3782008-01-11 Nick Kledzik <kledzik@apple.com>
379
380 * doc/man/man1/ld.1: add doc for -no_implicit_dylibs, -read_only_stubs, -slow_stubs, -interposable_list
381
382
3832008-01-11 Nick Kledzik <kledzik@apple.com>
384
385 <rdar://problem/4800212> ld64(1) man page uses ambiguous term "suffix"
386 * doc/man/man1/ld.1: make meaning of "suffix" more explicit
387
388
3892008-01-11 Nick Kledzik <kledzik@apple.com>
390
391 <rdar://problem/5633081> Obj-C Symbols in Leopard Can't Be Weak Linked
392 * src/MachOWriterExecutable.hpp: set weak and lazy attributes on dummy .objc_class_name undefines
393 to dylibs to support Mac OS X 10.3.x dyld
394
395
3962008-01-11 Nick Kledzik <kledzik@apple.com>
397
398 <rdar://problem/5669751> Unknown error with linker (dyld: unknown external relocation type)
399 * src/ld.cpp: fix crash when SO stabs are not balanced
400
401
4022008-01-11 Devang Patel <dpatel@apple.com>
403
404 <rdar://problem/5667433> LTO does not work if expected output is a dynamic library
405 * src/LLVMReader.hpp: Supply arguments describing output kind to optimizer. Communicate
406 visibility info.
407
4082000-01-10 Nick Kledzik <kledzik@apple.com>
409
410 <rdar://problem/5680988> __cls_refs section is losing S_LITERAL_POINTERS section type
411 * src/MachOWriterExecutable.hpp: special case __cls_refs section
412 * unit-tests/test-cases/objc-literal-pointers: add test case
413
414
4152008-01-03 Nick Kledzik <kledzik@apple.com>
416
417 <rdar://problem/5667688> wrong EH information might be used
418 Created new kGroupSubordinate reference kind to model group comdat. The "signature" atom
419 has kGroupSubordinate references to the other atoms in the group. If the signature atom
420 is coalesced away, the linker follows kGroupSubordinate references and throws away the
421 other members of the group.
422 * unit-tests/test-cases/eh-coalescing: added test case
423 * src/ld.cpp: added markDead() and use propagate to subordinates
424 * src/Architectures.hpp: added kGroupSubordinate
425 * src/MachOReaderRelocatable.hpp: add kGroupSubordinate reference from a function to its .eh atom
426 and if used, from .eh atom to its LSDA atom.
427 * src/MachOWriterExecutable.hpp: handle kGroupSubordinate like kNoFixUp
428
429----- Tagged ld64-81.4.1
430
4312007-12-19 Devang Patel <dpatel@apple.com>
432
433 * src/LLVMReader.hpp: Add LLVM_LTO_VERSION #ifdef check.
434
4352007-12-19 Devang Patel <dpatel@apple.com>
436
437 * src/LLVMReader.hpp: Add fOptimizer NULL check before calling printVersion().
438
4392007-12-19 Devang Patel <dpatel@apple.com>
440
441 <rdar://problem/5655956> print LLVM LTO version number in verbose mode
442 * src/LLVMReader.hpp: Add printLLVMVersion() to print llvm version string in verbose mode.
443 * src/Options.cpp: Use printLLVMVersion() in verbose mode.
444
4452007-12-19 Devang Patel <dpatel@apple.com>
446
447 <rdar://problem/5655956> print LLVM LTO version number in verbose mode
448 * src/Options.h: Add verbose() method to check fVerbose flag.
449 * src/LLVMReader.hpp: Print LLVM version string in verbose mode.
450
451----- Tagged ld64-81.4
452
4532007-12-18 Devang Patel <dpatel@apple.com>
454
455 * src/LLVMReader.hpp: Invalidate input architecture when optimizer is not available.
456
457----- Tagged ld64-81.3
458
4592007-12-17 Nick Kledzik <kledzik@apple.com>
460
461 * ld64.xcodeproj/project.pbxproj: remove extraneous header search paths
462
463
4642007-12-17 Devang Patel <dpatel@apple.com>
465
466 * src/LLVMReader.hpp: Do not throw exception if LLVMReader is not able to
467 dlopen LTO library. Instead just flag input file as an invalid LLVM bitcode file.
468
469
4702007-12-14 Nick Kledzik <kledzik@apple.com>
471
472 <rdar://problem/5645908> gcc DejaGnu failure: gcc.dg/20020312-2.c (test for excess errors) (-fstack-protector-all)
473 * src/MachOWriterExecutable.hpp: fix Writer<x86>::generatesExternalTextReloc() to allow text relocs
474 * unit-tests/test-cases/read-only-relocs: updated test case to link a dynamic main executable compiled with -static
475
476
4772007-12-14 Devang Patel <dpatel@apple.com>
478
479 <rdar://problem/5648438> Enable Link Time Optimization in Opal
480 * src/LLVMReader.hpp: Locate LLVMlto.dylib relative to ld location in Developer folder.
481 * ld64.xcodeproj/project.pbxproj: Add {DEVELOPER_DIR}/usr/include in header search path.
482 * unit-tests/run-all-unit-tests: Set DYLD_FALLBACK_LIBRARY_PATH to find LLVMlto.dylib during unit testing.
483 * unit-tests/testcases/llvm-integration/Makefile: Point LLVMGCC and LLVMGXX to llvm-gcc-4.2 in Developer folder during unit testing.
484
485
4862007-12-13 Nick Kledzik <kledzik@apple.com>
487
488 <rdar://problem/5645446> SWB: failures due to ld: pointer in read-only segment not allowed in slidable image, used in ...
489 * src/MachOReaderRelocatable.hpp: in Reader<x86>::addRelocReference() handle weak pc-rel 32-bit vanilla relocs properly
490
491----- Tagged ld64-81.2
492
mirror of ld64