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3078 Commits

Author SHA1 Message Date
Shankar Easwaran 710b4c8fa2 fix segment ordering of elf segments 
llvm-svn: 174659
 2013-02-07 20:33:55 +00:00
Shankar Easwaran 34ab70f1e6 add changes for layoutafter/layoutbefore/ingroup/layoutpass and test cases 
llvm-svn: 174658
 2013-02-07 20:16:12 +00:00
Michael J. Spencer 7799d15f6e [Driver] Add -L and -l support. 
llvm-svn: 174590
 2013-02-07 06:47:17 +00:00
Michael J. Spencer cfe59fd0d3 [Driver] Replace Target with TargetInfo. Simplify LinkerInput. 
This removes Target and moves the functionality it had over to TargetInfo.

This also simplifies LinkerInput by removing the InputKind. This will be handled elsewhere.

llvm-svn: 174589
 2013-02-07 06:46:48 +00:00
Michael J. Spencer 7a0e212f6f [ELF][x86-64] Handle PLT32 relocations to IFUNC. 
llvm-svn: 174428
 2013-02-05 19:15:03 +00:00
Michael J. Spencer 7fec00b20e [ELF][Layout] Provide a proper way to get the TLS segment size. 
llvm-svn: 174427
 2013-02-05 19:14:43 +00:00
Michael J. Spencer 359b6ff6bb [ELF] Implement GOTPCREL for defined atoms. 
llvm-svn: 174426
 2013-02-05 19:14:28 +00:00
Michael J. Spencer e6ab9f80a7 [ELF] Replace local dynamic tls access with direct access. 
llvm-svn: 174425
 2013-02-05 19:14:07 +00:00
Michael J. Spencer be1100e192 [Resolver] Improve undefined symbol error. 
llvm-svn: 174277
 2013-02-03 10:50:06 +00:00
Michael J. Spencer 7b7e8edb86 [ELF] Use LLVM_IS_UNALIGNED_ACCESS_FAST. 
llvm-svn: 174276
 2013-02-03 10:49:57 +00:00
Michael J. Spencer 7e813242af [ELF][Reader] Improve performance by removing calls to malloc. 
llvm-svn: 174275
 2013-02-03 10:49:47 +00:00
Michael J. Spencer 9a1da075b2 [ELF] Fix uninitialized variable. 
llvm-svn: 174274
 2013-02-03 10:49:37 +00:00
Michael J. Spencer 4673da27ef [Archive] Update to LLVM change. 
llvm-svn: 174273
 2013-02-03 10:49:26 +00:00
Shankar Easwaran a47495898c remove duplicate strings from the string table 
llvm-svn: 174200
 2013-02-01 18:06:15 +00:00
Shankar Easwaran d476528e3d add alignment to .got/.got.plt/.plt sections & fix tests 
llvm-svn: 174199
 2013-02-01 18:03:32 +00:00
Shankar Easwaran f23fc86ca8 add proper copyright header 
llvm-svn: 174178
 2013-02-01 15:05:11 +00:00
Michael J. Spencer 08b49bf27e [ELF][x86-64] Fix ifunc and add test. 
In an previous commit I managed to completely disable the IRELATIVE relocation
writing code. I also used the wrong addend for the static relocation. Fix both
these issues and add a test. This test is quite brittle because there's no way
to do arithmetic on variables in FileCheck.

llvm-svn: 174161
 2013-02-01 09:14:21 +00:00
Michael J. Spencer b5d6f5e988 [ELF][x86-64] Implement static relocation model for TLS. 
This implements the static relocation model for GOT accesses to TLS.

llvm-svn: 174155
 2013-02-01 07:14:14 +00:00
Michael J. Spencer b0ed8e80d8 [ELF][x86-84] Add static TLS support. 
llvm-svn: 174154
 2013-02-01 07:13:49 +00:00
Michael J. Spencer 3c75665fdd [ELF][x86-64] Add the _GLOBAL_OFFSET_TABLE_ Atom in the correct location. 
Now we link against glibc without --noinhibit-exec.

llvm-svn: 174150
 2013-02-01 05:36:14 +00:00
Michael J. Spencer c8803d27aa [ELF] Add more absolute atoms. Simplify how they are resolved. 
llvm-svn: 174149
 2013-02-01 05:36:00 +00:00
Shankar Easwaran 73ef70b50f add hexagon scatter bits and split hexgontargethandler to hexagonrelocationhander 
llvm-svn: 174148
 2013-02-01 05:26:02 +00:00
Michael J. Spencer 280dadbbaf [Core] Only complain about undefined symbols if they are marked as canBeNullNever. 
llvm-svn: 174107
 2013-01-31 22:56:13 +00:00
Michael J. Spencer 461d33648b [ELF][x86-64] Improve unknown relocation message. 
llvm-svn: 174092
 2013-01-31 21:00:57 +00:00
Michael J. Spencer 3830d2c49f [ELF] Create atoms for progbits sections with no symbols but still have content. 
llvm-svn: 174091
 2013-01-31 21:00:42 +00:00
Shankar Easwaran fb8565a9c6 add support for assigning virtual addresses to TDATA/TBSS sections 
llvm-svn: 174065
 2013-01-31 16:04:47 +00:00
Michael J. Spencer b3c04d28c8 [ELF] Fix circular initialization bug. 
llvm-svn: 173968
 2013-01-30 20:36:56 +00:00
Michael J. Spencer 901fd6a4c8 [ELF] Use the target's LayoutHandler. 
llvm-svn: 173966
 2013-01-30 20:05:27 +00:00
Shankar Easwaran e07245cdfc hexagon targetinfo changes for getting the relocation kind from string and vice versa 
llvm-svn: 173942
 2013-01-30 16:05:43 +00:00
Shankar Easwaran ddb122811b simplify hexagon relocations handling 
llvm-svn: 173938
 2013-01-30 15:38:41 +00:00
Michael J. Spencer 23d23953b3 [ELF][x86-64] Add TargetLayout. 
llvm-svn: 173922
 2013-01-30 10:43:25 +00:00
Michael J. Spencer 8254185eea Whitespace. 
llvm-svn: 173921
 2013-01-30 10:43:10 +00:00
Michael J. Spencer d21b72730f [ELF] Remove ReferenceKinds. 
llvm-svn: 173912
 2013-01-30 07:46:54 +00:00
Michael J. Spencer f35c3e434a [ELF] Use TargetRelocationHandler to apply relocations. 
llvm-svn: 173911
 2013-01-30 07:46:31 +00:00
Michael J. Spencer 409a737f36 [ELF] Add {Hexagon,PPC,X86}TargetHandler. 
llvm-svn: 173909
 2013-01-30 07:36:45 +00:00
Shankar Easwaran 396e4c0b13 change DefaultLayout to TargetLayout inside member variables 
llvm-svn: 173906
 2013-01-30 07:19:57 +00:00
Shankar Easwaran a6f00fe083 add targethandler hooks from Writer and cleanup 
llvm-svn: 173904
 2013-01-30 07:11:43 +00:00
Michael J. Spencer 457a77739b [ELF][x86-64] Add X86_64TargetRelocationHandler and friends. 
llvm-svn: 173897
 2013-01-30 05:26:03 +00:00
Michael J. Spencer 4e9d9cd23b [ELF] Add ELFTargetRelocationHandler. 
llvm-svn: 173896
 2013-01-30 05:25:44 +00:00
Michael J. Spencer 4260657fab [ELF] Make AtomLayout more accessible. 
This is needed to allow constant time access to the final layout of atoms.

llvm-svn: 173874
 2013-01-30 01:25:06 +00:00
Michael J. Spencer e68f90355c [ELF] Chop the ELF prefix off of most things. 
llvm-svn: 173838
 2013-01-29 22:03:39 +00:00
Shankar Easwaran 185e8a076d remove targetInfo and layout from ELFTargetLayout 
llvm-svn: 173824
 2013-01-29 20:13:16 +00:00
Michael J. Spencer 43ecac5a2c [ELF] Fix header sort order. 
llvm-svn: 173822
 2013-01-29 19:53:41 +00:00
Michael J. Spencer 289dcedea5 [ELF] Add support for IFUNC. 
This sadly doesn't have a test for the final
output because llvm-objdump can't dump relocations
that don't belong to a section :(

llvm-svn: 173808
 2013-01-29 16:38:03 +00:00
Michael J. Spencer bf77be3ba5 [ELF] Give Chunk a ELFTargetInfo. 
llvm-svn: 173743
 2013-01-29 01:07:47 +00:00
Michael J. Spencer adfb7eb211 [ELF] Remove OwningPtr from the Chunk::write interface. 
llvm-svn: 173741
 2013-01-29 01:00:21 +00:00
Michael J. Spencer bdf8bc8315 [ELF] Clean up doxygen comments. 
llvm-svn: 173740
 2013-01-29 01:00:04 +00:00
Shankar Easwaran 072fb1a403 add register section, remove contentType from sectionKey 
llvm-svn: 173709
 2013-01-28 19:21:04 +00:00
Michael J. Spencer 990ec2b223 [ELF] Use entry point from LinkerOptions. 
Patch by Ahmed Bougacha!

llvm-svn: 173655
 2013-01-28 04:15:44 +00:00
Benjamin Kramer ac49d37a63 lldX86_64ELFTarget depends on lldCore. 
llvm-svn: 173573
 2013-01-26 13:49:19 +00:00
Michael J. Spencer 20231f1275 Use proper delete. 
llvm-svn: 173570
 2013-01-26 12:26:56 +00:00
Michael J. Spencer 5ba1a96a10 [ELF][x86-64] Add relocation string<->kind. 
llvm-svn: 173533
 2013-01-25 23:48:58 +00:00
Michael J. Spencer 866e0f8a8c [ELF][X86-64] Use the correct base address. 
llvm-svn: 173527
 2013-01-25 23:23:24 +00:00
Michael J. Spencer 385f312686 [CMake] Setup include dirs properly. 
llvm-svn: 173488
 2013-01-25 20:50:01 +00:00
Shankar Easwaran 4277c2d6bf change all occurences of File to FileELF 
llvm-svn: 173449
 2013-01-25 15:19:02 +00:00
Shankar Easwaran 3256d4ff62 add elf targethandler 
llvm-svn: 173430
 2013-01-25 07:39:18 +00:00
Michael J. Spencer 88f4d24e4a [Driver] Run the pass manager. 
llvm-svn: 173381
 2013-01-24 22:52:42 +00:00
Michael J. Spencer 19c4756ff2 Move SimpleAtoms.h to ReaderWriter. 
llvm-svn: 173380
 2013-01-24 22:52:25 +00:00
Nick Kledzik 36293f6512 Add SectionPosition and OrderPass 
llvm-svn: 173300
 2013-01-23 22:32:56 +00:00
Michael J. Spencer 563d33a6f1 [ELF] Read IFUNC symbols correctly as typeResolver. 
llvm-svn: 173299
 2013-01-23 22:08:46 +00:00
Michael J. Spencer c0d3c4efe6 Add PassManager. 
It owns and manages passes.

llvm-svn: 173287
 2013-01-23 20:03:10 +00:00
Michael J. Spencer 64afcb4c6b Move everything over to TargetInfo. 
I really would have liked to split this patch up, but it would greatly
complicate the lld-core and lld drivers having to deal with both
{Reader,Writer}Option and TargetInfo.

llvm-svn: 173217
 2013-01-23 01:18:43 +00:00
Michael J. Spencer 4586fbcbad [Core] Move Resolver and SymbolTable over to TargetInfo. 
No functionality change.

llvm-svn: 173192
 2013-01-22 20:49:42 +00:00
Michael J. Spencer d68d6196af Add {,ELF,MachO}TargetInfo. 
llvm-svn: 173117
 2013-01-22 02:15:30 +00:00
Shankar Easwaran 6d9921fc53 no functionality changes(split WriterELF into multiple files) 
llvm-svn: 173082
 2013-01-21 20:09:55 +00:00
Michael J. Spencer 8af48f3864 [Core] Use LLVM's ErrorOr<T>. 
llvm-svn: 172993
 2013-01-20 21:27:05 +00:00
Chandler Carruth b5f3bd956c Replace the 'final' keyword with 'LLVM_FINAL' as GCC 4.6 doesn't support 
the keyword.

If anyone cares deeply about the final optimizations with GCC, we might
want to add a version test to the LLVM definition, but I'm perfectly
happy with this just only firing under Clang and modern MSVC builds.

llvm-svn: 172898
 2013-01-19 09:57:51 +00:00
Michael J. Spencer 71c00f42bd [ELF] Use operator new(std::size_t, BumpPtrAllocator). 
llvm-svn: 172675
 2013-01-16 23:34:45 +00:00
Michael J. Spencer 84d3b01fb5 [ELF] clang-format ReaderELF.cpp 
llvm-svn: 172674
 2013-01-16 23:34:32 +00:00
Michael J. Spencer 8b3898af26 [ELF] Never allocate content to weak symbols as they may be merged away. 
This is done by creating a new non-weak anonymous symbol and creating
an atom with content for that symbol. This is added after the weak symbol
so that they have the same address.

llvm-svn: 172553
 2013-01-15 21:13:02 +00:00
Michael J. Spencer 842885e06e [ELF] Refactoring and style cleanup. No functionality change. 
llvm-svn: 172552
 2013-01-15 21:12:45 +00:00
Michael J. Spencer b03f6c489a [ELF] Update for LLVM Object/ELF changes. 
llvm-svn: 172516
 2013-01-15 07:53:22 +00:00
Michael J. Spencer bb78a04088 [ELF] Replace [...] x_{begin,end}() with range<[...]> x(). 
llvm-svn: 172513
 2013-01-15 06:55:37 +00:00
Michael J. Spencer 7fe77f8c61 [ELF] Fix use of LLVM RTTI. 
llvm-svn: 172511
 2013-01-15 06:55:11 +00:00
Shankar Easwaran f6dc082f91 remove const from FindByName 
llvm-svn: 172507
 2013-01-15 03:02:33 +00:00
Nick Kledzik 233f537799 Add new merge-by-content Merge attribute for use by anonymous 
constants and string literals which the linker should coalesce.

llvm-svn: 172495
 2013-01-15 00:17:57 +00:00
Nick Kledzik 343ecbd6ba Fix shadowed variable warning 
llvm-svn: 172482
 2013-01-14 22:10:22 +00:00
Michael J. Spencer 74ba722be1 [YAML] Fix undefined behavior. 
llvm-svn: 172338
 2013-01-13 01:09:39 +00:00
Michael J. Spencer 57752dc56e Factor File::addAtom out to MutableFile::addAtom. 
This removes a bunch of llvm_unreachables and makes a File's mutability part of the type system.

llvm-svn: 172297
 2013-01-12 02:45:54 +00:00
Michael J. Spencer 3756852d62 [ELF] Fix comment. 
llvm-svn: 172266
 2013-01-11 22:39:56 +00:00
Michael J. Spencer 4ffbd608cd [ELF] Add AtomLayout instead of using pair<Atom, pair<uint64_t, uint64_t>>. 
llvm-svn: 172265
 2013-01-11 22:39:44 +00:00
Michael J. Spencer 2a5763cd86 [ELF] Use the correct cast. 
llvm-svn: 172264
 2013-01-11 22:39:31 +00:00
Michael J. Spencer bbe4b9812b [ELF] Simplify assert. 
llvm-svn: 172255
 2013-01-11 21:38:36 +00:00
Shankar Easwaran b1d09c07f1 better implementation for findOutputSection 
llvm-svn: 172236
 2013-01-11 18:56:11 +00:00
Shankar Easwaran 7381db059a add noinhibit exec option 
llvm-svn: 172204
 2013-01-11 15:11:47 +00:00
Shankar Easwaran d127d8169a add hexagon target to lld 
llvm-svn: 172202
 2013-01-11 15:01:04 +00:00
Michael J. Spencer ecd5f4062f [ELF] Add support for __init_array_{start,end}. 
With this change c++ global constructors and destructors work.

llvm-svn: 172133
 2013-01-10 22:41:42 +00:00
Michael J. Spencer aa8a5a2ab2 [ELF] Fixed -Wunused in -asserts mode. 
llvm-svn: 172131
 2013-01-10 22:41:05 +00:00
Shankar Easwaran 37c528259a style changes 
llvm-svn: 172080
 2013-01-10 18:16:10 +00:00
Shankar Easwaran 2ca8e7d733 support for adding linker defined symbols 
llvm-svn: 172040
 2013-01-10 03:16:27 +00:00
Michael J. Spencer ad5f00ea2d [Archive] Use a hash map to lookup symbols in archives. Increases performance of linking lua by ~6x. 
llvm-svn: 172028
 2013-01-10 01:27:45 +00:00
Nick Kledzik cc3d2dca60 Better tie together ContentType and Permissions. 
Since most content types (e.g. typeCode) have a 
preferred Permission, add a function to do that mapping.
Then hook up to YAML Reader and Writer such that
the 'permissions:' key does not need to be specified unless
overriding what the content type prefers.

llvm-svn: 171929
 2013-01-09 01:17:12 +00:00
Nick Kledzik bd49198409 add extra namespace for gcc-4.7 compatibility 
llvm-svn: 171918
 2013-01-08 23:51:03 +00:00
Nick Kledzik 80fe907903 fix typo 
llvm-svn: 171916
 2013-01-08 23:43:11 +00:00
Michael J. Spencer 6047163a24 [lld] Add support for -mllvm. 
There is no way to test this at the moment because the options are not
processed until the link starts, and we can't pass an empty file.

llvm-svn: 171910
 2013-01-08 22:59:27 +00:00
Michael J. Spencer 79fafccb5e [Driver] Fix indentation. 
llvm-svn: 171909
 2013-01-08 22:59:01 +00:00
Nick Kledzik 8a3052eab0 Rename YAML key 'fixups:' to 'references:' 
llvm-svn: 171898
 2013-01-08 21:12:13 +00:00
Michael J. Spencer d2a4ccf8f9 [ELF] Add R_X86_64_64 relocation. 
llvm-svn: 171836
 2013-01-08 02:12:15 +00:00
Michael J. Spencer 8f80cd92d9 [lld] Add and ignore some flags for ld compat. 
llvm-svn: 171835
 2013-01-08 02:12:01 +00:00
Michael J. Spencer 8de8364753 [ELF] Properly handle constant data. 
With this hello world works with dietlibc on x86-64 Linux.

llvm-svn: 171711
 2013-01-07 08:00:42 +00:00
Michael J. Spencer 956b03618c [lld] Add -emit-yaml option. This outputs yaml instead of a binary. 
llvm-svn: 171710
 2013-01-07 08:00:25 +00:00
Michael J. Spencer 1ac382f0c5 [ELF] Emit the file header and program headers at the beginning of the first segment. 
This is required for the loader to correctly set AT_PHDR.

With this lld can correctly link against dietlibc and get to main.

llvm-svn: 171709
 2013-01-07 08:00:04 +00:00
Michael J. Spencer 00b702c95c [ELF] Change Segment to hold Chunks instead of Sections. No functionality change. 
llvm-svn: 171708
 2013-01-07 07:59:46 +00:00
Michael J. Spencer c8a12cce98 [ELF] Remove dead variable. 
llvm-svn: 171707
 2013-01-07 07:59:34 +00:00
Michael J. Spencer 28c6594c71 [ELF] Emit zeroFill as STT_OBJECT in the final executable. ld does this. 
llvm-svn: 171704
 2013-01-07 07:05:52 +00:00
Michael J. Spencer cdb892488e [ELF] Add common x86_64 relocation types. 
llvm-svn: 171703
 2013-01-07 06:58:53 +00:00
Michael J. Spencer 0c3f25ead9 [Driver] x86-64 should use ELF 64. 
llvm-svn: 171693
 2013-01-07 04:51:32 +00:00
Michael J. Spencer c41d48fdee [ELF] Give a slightly better message for unknown relocation types. 
llvm-svn: 171692
 2013-01-07 04:51:17 +00:00
Michael J. Spencer fd3981d6db [ELF] Update to llvm change. 
llvm-svn: 171652
 2013-01-06 05:40:27 +00:00
Michael J. Spencer 00744bf495 [YAML] Fix -Wcovered-switch-default 
llvm-svn: 171645
 2013-01-06 00:45:22 +00:00
Nick Kledzik 6b079f5e2f Removes files for separate ReaderYAML.cpp and WriterYAML.cpp 
and adds a new file ReaderWriterYAML.cpp that uses YAML I/O.

Lots of tweaks to test suite for slightly different YAML encoding.

llvm-svn: 171592
 2013-01-05 02:22:35 +00:00
Reid Kleckner e974bd1be9 Avoid MSVCRT assertion on comparing phdr iterators 
llvm-svn: 171591
 2013-01-05 02:21:42 +00:00
Michael J. Spencer 3124422a8b [ELF] Add skeleton for X86-64 relocations. 
llvm-svn: 171578
 2013-01-05 00:47:04 +00:00
Michael J. Spencer 18225e7be1 [Driver] Add -flavor core support. This will be tested by other tests using -flavor core. 
llvm-svn: 171577
 2013-01-05 00:46:45 +00:00
Michael J. Spencer 5adebbd6a6 [ELF][Writer] Don't infinite loop. 
This will be tested by a following committ that runs the linker
with no inputs.

llvm-svn: 171576
 2013-01-05 00:46:23 +00:00
Michael J. Spencer b14ac9b1fe Style 
llvm-svn: 171575
 2013-01-05 00:46:10 +00:00
Michael J. Spencer bc7f2a7359 [Driver] Add x86-64 target. 
llvm-svn: 171557
 2013-01-04 23:34:29 +00:00
Michael J. Spencer 65f6113d21 [ELF] STT_GNU_IFUNC is a known symbol type, so accept it. We do not yet implement its semantics. 
llvm-svn: 171533
 2013-01-04 21:25:25 +00:00
Michael J. Spencer 552074f18e Style fixes. 
llvm-svn: 171531
 2013-01-04 21:18:34 +00:00
Michael J. Spencer b8c853e5eb [Passes][GOT] Fix style. 
llvm-svn: 171530
 2013-01-04 21:18:13 +00:00
Michael J. Spencer 85d998a109 [Driver] Error on undefined. 
llvm-svn: 171529
 2013-01-04 21:18:02 +00:00
Michael J. Spencer 7f693c50db Slightly better diagnostics on duplicate symbols. 
llvm-svn: 171528
 2013-01-04 21:17:51 +00:00
Michael J. Spencer a2c9727810 [ELF] Handle misaligned ELF files properly. 
llvm-svn: 171526
 2013-01-04 21:09:21 +00:00
Shankar Easwaran 495d38bf46 add Changes to ELF Writer to layout sections/segments in the output executable 
llvm-svn: 171135
 2012-12-27 02:26:30 +00:00
Shankar Easwaran bbf9ddda04 changes for the ELF Reader : split up into AtomsELF.h/Adding new permissions permRWX 
llvm-svn: 171127
 2012-12-27 01:40:08 +00:00
Shankar Easwaran b3cb257b8b changes to fix Hexagon Relocation so that it accounts for the bitmask properly as documented in the ABI 
llvm-svn: 171125
 2012-12-27 01:04:00 +00:00
Andy Gibbs d02bf1d232 Fix build issue when building lld against libstdc++ 4.7 
llvm-svn: 170983
 2012-12-22 09:46:10 +00:00
Michael J. Spencer 8ac9150556 [ELF][Reader] Ignore SHF_GROUP when switching on flags. 
llvm-svn: 170624
 2012-12-20 00:37:24 +00:00
Michael J. Spencer 6344b322e2 Style fixes. 
llvm-svn: 170623
 2012-12-20 00:37:10 +00:00
Michael J. Spencer 99b99d26bb [Driver] Properly handle -entry for X86 Linux. 
llvm-svn: 169718
 2012-12-09 23:56:37 +00:00
Michael J. Spencer 3825760550 [Driver] Add -### support for printing out the core command line. 
llvm-svn: 169717
 2012-12-09 23:56:26 +00:00
Michael J. Spencer 48ed572710 Remove left over debugging output. 
llvm-svn: 169716
 2012-12-09 23:56:03 +00:00
Michael J. Spencer c8b60a70be [Driver] Make the X86Linux target use X86 (not x64) and properly initalize WriterOptions. 
llvm-svn: 169715
 2012-12-09 23:55:52 +00:00
Michael J. Spencer 9ff4be240a Add the core architecture for the lld driver. 
This includes selecting which driver to emulate, option parsing, invocation
building, and running the link. This currently only supports a very basic
subset of ld for x86_64-linux.

lld -flavor ld obj.o -o obj

or symlink lld as (ld , link, ld64, core) to get the desired behavior without
-flavor.

llvm-svn: 169659
 2012-12-08 00:47:36 +00:00
Benjamin Kramer f7798e34c9 Add library dependencies to the lld cmake build. 
llvm-svn: 169306
 2012-12-04 21:09:04 +00:00
Hemant Kulkarni 736f7fbee2 Populate entry point into ELF executable. 
llvm-svn: 168461
 2012-11-21 21:07:36 +00:00
Hemant Kulkarni 87dbac00a9 Add program header emission to ELF writer. This patch also rearranges sections for efficient memory utilization 
llvm-svn: 167874
 2012-11-13 21:34:45 +00:00
Shankar Easwaran 85bb045106 changes after mspencer reviews in phabricator 
llvm-svn: 167871
 2012-11-13 20:34:55 +00:00
Michael J. Spencer a5d22811af Fix style violations. 
llvm-svn: 167869
 2012-11-13 19:58:58 +00:00
Shankar Easwaran 70b4dcfbcd Adding support to resolve symbols with archive libraries in lld 
llvm-svn: 167854
 2012-11-13 18:39:10 +00:00
Hemant Kulkarni f828613945 Add absolute symbol scope recognition in lld/Core 
llvm-svn: 167394
 2012-11-05 19:13:54 +00:00
Nick Kledzik 8cf031e4cc rename dylibNamesToOrdinal now that it is an ivar 
llvm-svn: 167254
 2012-11-01 21:44:45 +00:00
Michael J. Spencer a1913fbda9 [ELF] Fix -Woverloaded-virtual 
llvm-svn: 167246
 2012-11-01 19:46:19 +00:00
Michael J. Spencer d91bc3c8bb [MachO] Fix use after free. 
llvm-svn: 167245
 2012-11-01 19:46:06 +00:00
Michael J. Spencer c1d704550a [MachO] Fix uninitialized variables. 
llvm-svn: 167244
 2012-11-01 19:45:53 +00:00
Michael J. Spencer e337e60552 Fix cl brokeness. 
cl is not attempting to complete a templated class when used in this
context. The conversion forces this to happen.

Thanks to Richard Smith for figuring this out.

llvm-svn: 167166
 2012-10-31 20:47:30 +00:00
Michael J. Spencer d2f7e50867 Add missing include. 
llvm-svn: 167165
 2012-10-31 20:47:11 +00:00
Sid Manning 823e8bb7be This patch changes the following: 
* Use conventional naming for KindHandlers.
  * Add X86 relocation routines.
  * Use std::function instead of function pointers in _fixupHandler map.
  * Change _fixupHandler map from std::map to llvm::DenseMap.
  * Add simple testcase for x86 relocations.

llvm-svn: 166700
 2012-10-25 17:53:04 +00:00
Sid Manning 2a59024ff8 This update does the following: 
* Moves enum Scope from DefinedAtom.h to Atom.h
  * Adds scope method to AbsoluteAtom class
  * Updates YAML to print scope of AbsoluteAtoms
  * Update Native Reader/Writer to handle this new, "attribute"
  * Adds testcase 
Reviewed and approved by Nick Kledzik

llvm-svn: 166189
 2012-10-18 17:16:19 +00:00
Sid Manning 42064e5b60 * Add relocation reference support for Hexagon and PowerPC. 
- Hexagon has many relocation types, this patch covers just
      a subset, more will be added.
    - PowerPC support was added so that we can verify mixed endian
      environments.
  * Add some basic test cases
  * Update ldd-core to accept -endian flag

llvm-svn: 165477
 2012-10-09 02:20:47 +00:00
Sid Manning e3612f0f21 Fix incorrect setting of EI_DATA 
llvm-svn: 165310
 2012-10-05 14:06:24 +00:00
Hemant Kulkarni 8bd276120f Added missing break in StockSectionChunk constructor. 
Removed architecture dependent .sbss section creation.

Updated test case to show the change in section types and removal of a sbss section.

llvm-svn: 165181
 2012-10-03 23:27:33 +00:00
Sid Manning 05c82a42dd * Return correct size and alignment for common symbols. 
llvm-svn: 165170
 2012-10-03 21:46:48 +00:00
Hemant Kulkarni 08e410293f Emit symbol tables. 
Reorganize to derive all sections from SectionChunk.
Construct section table header from SectionChunk.

llvm-svn: 164981
 2012-10-01 23:53:20 +00:00
Sid Manning e861d43f65 This change: 
* Updates ReaderELF.cpp contentType method to match ELF.h's logic and now handle
    typeData
  * Add -arch to ldd-core testdriver
  * Add testcase to check typeData
  * Update others to stay in sync with this change.

llvm-svn: 164976
 2012-10-01 23:23:05 +00:00
Michael J. Spencer e2fb6c73f3 Fix -Wcovered-switch-default warning. 
llvm-svn: 164846
 2012-09-28 21:07:58 +00:00
Sid Manning d3a7e7e164 Add case for typeConstant in SectionChunk 
llvm-svn: 164732
 2012-09-26 22:46:17 +00:00
Sid Manning dd11020739 This patch makes use of recently added relocation reference data. The bulk 
of this is derived from the Mach-O writer.  Reviewed by: Nick Kledzik.
 * Adds loop to SectionChunk::write traverse references calling the
   writer's fixup handler, applyFixup.
 * Adds method, ELFWriter::buildAtomToAddressMap to that creates a
   mapping from an atom to its runtime address.
 * Adds method, ELFWriter::addressOfAtom to return the runtime address
   of the atom. 

llvm-svn: 164618
 2012-09-25 18:22:09 +00:00
Sid Manning 8caf4de31f Add ELFReference class - parse relocations needed by that class and update DefinedAtom to use the class. Tweak coding style. Add testcase to check relocations. Change was signed-off-by: Michael Spencer 
llvm-svn: 164027
 2012-09-17 12:49:38 +00:00
Hemant Kulkarni 927bbc2871 ELF support for LLD writer. The writer at present emits ELF header and section 
table header. Skeleton code for ReferenceKinds.
Credits:
Doxygen by  Michael Spencer.
Origianl implementation from Macho by Sidney Manning.
Templatization, implementation of section header chunks, string table, ELF header by Hemant Kulkarni.

llvm-svn: 163906
 2012-09-14 16:11:34 +00:00
Michael J. Spencer 69ed53ab5f Fix warnings. 
llvm-svn: 163573
 2012-09-10 23:46:58 +00:00
Nick Kledzik 7243b89459 PR13467: Fix mach-o writer to handle case of zero stubs. Renumber TestingHelpers kind values 
llvm-svn: 160982
 2012-07-30 20:10:46 +00:00
Sid Manning 429a4bc172 Fix warning from -Wshadow. Report errors back to caller rather than calling 
llvm::report_fatal_error.

llvm-svn: 160864
 2012-07-27 14:52:18 +00:00
Sid Manning ad58efd69a Add a default constructor/destructor for ReaderOptionsPECOFF 
llvm-svn: 160740
 2012-07-25 17:16:46 +00:00
Sid Manning 1a60141f99 Implement the ELF reader. The original implementation was by Hemant Kulkarni 
with subsequent changes to use lower level interfaces done by me.

llvm-svn: 160732
 2012-07-25 16:27:21 +00:00
Marshall Clow f33f0bbdcf Minor edits to match style guidelines. No functionality change 
llvm-svn: 160370
 2012-07-17 16:18:04 +00:00
Michael J. Spencer efcf099db5 Unused var warning. 
llvm-svn: 158944
 2012-06-21 22:41:46 +00:00
Michael J. Spencer aedfa6a36b Fix MSVC compat. MSVC doesn't have bzero. 
Although the code is not valid to begin with. It is trying to do a raw memory
copy of a non standard-layout type. nameoffset is not guaranteed to directly
follow cmdsize.

This should be properly fixed.

llvm-svn: 158612
 2012-06-17 01:18:44 +00:00
Nick Kledzik 7145cf6846 Add 'invalid' as a Reference Kind so that unknown/invalid kind strings can return that fact to the caller for use in constructing an error message, rather that triggering an assertion. 
llvm-svn: 158547
 2012-06-15 21:26:18 +00:00
Nick Kledzik 21f5d4d629 remove return statements after llvm_unreachable() as the compiler no longer warns abot missing return values 
llvm-svn: 158544
 2012-06-15 21:04:32 +00:00
Nick Kledzik 751eb3d2b3 use llvm_unreachable() instead of assert(0) for invalid enum values in switch statements 
llvm-svn: 158542
 2012-06-15 20:37:24 +00:00
Nick Kledzik d6a27324f9 Use ADT/StringSwitch 
llvm-svn: 158541
 2012-06-15 20:29:27 +00:00
Nick Kledzik c890ae41e2 flesh out mach-o Reference Kinds 
llvm-svn: 158375
 2012-06-12 23:01:30 +00:00
Nick Kledzik 40b68559e8 Move implementation of WriterOptionsMachO to its own file. Reduced redundant 
ivars in WriterOptionsMachO instead have its methods compute ivar interactions.
Refactor mach-o Reference Kinds and introduce abstract class KindHandler.
Split up StubAtoms.hpp by architecture.  Add support for 32-bit x86 stubs.

llvm-svn: 158336
 2012-06-11 22:53:15 +00:00
Nick Kledzik 5fb2e4dabe put the public function createReaderPECOFF() in the lld namespace and everything else in is own namespace 
llvm-svn: 158135
 2012-06-07 02:23:48 +00:00
Nick Kledzik 98211f6d19 fix warnings found after cranking up warnings 
llvm-svn: 158134
 2012-06-07 01:53:39 +00:00
Nick Kledzik 40b8655082 abstract load commands to that WriterMachO can write 64-bit and 32-bit mach-o files 
llvm-svn: 158133
 2012-06-07 01:45:39 +00:00
Nick Kledzik abb6981f68 Major refactoring: Remove Platform concept. In its place there are 
now Reader and Writer subclasses for each file format.  Each Reader and
Writer subclass defines an "options" class which controls how that Reader
or Writer operates.

llvm-svn: 157774
 2012-05-31 22:34:00 +00:00
Filipe Cabecinhas 6f970e8458 Remove some compilation warnings. 
llvm-svn: 157253
 2012-05-22 14:45:44 +00:00
Nick Kledzik a3c24f447f remove completed items 
llvm-svn: 156143
 2012-05-04 01:14:02 +00:00
Nick Kledzik 3011259a85 Rework how YAMLReader is layered on top of YAMLParser. Turn hand written 
recursive descent functions into one table driven parser.  Add proper
error recovery and reporting.  Add lots of test cases with semantics errors
and verify error messages.

llvm-svn: 156136
 2012-05-03 23:55:34 +00:00
Michael J. Spencer 440b26749c Address review comments from Roman Divacky. 
llvm-svn: 156130
 2012-05-03 23:36:39 +00:00
Michael J. Spencer 60d835fa59 Add COFF reader. 
There are no tests for this yet because I still need to finish the
YAML -> COFF converter so we don't get binary files checked in.

llvm-svn: 156100
 2012-05-03 20:52:22 +00:00
Michael J. Spencer d0d5ec4a38 Convert the YAMLReader to use LLVM/Support/YAMLParser. 
llvm-svn: 155847
 2012-04-30 21:20:13 +00:00
Michael J. Spencer 63d320064d Remove whitespace. 
llvm-svn: 155846
 2012-04-30 21:19:44 +00:00
Evandro Menezes f48d80161d Fix minor warnings and simplify code. 
llvm-svn: 155652
 2012-04-26 19:20:11 +00:00
Jay Foad 4d5e6cf906 Fix errors when building with GCC 4.6.1 -std=c++0x, which requires 
"friend class Foo;" instead of just friend Foo;".

llvm-svn: 155625
 2012-04-26 07:37:08 +00:00
Michael J. Spencer 34fbcb4cba MSVC fixes: 
* MSVC does not yet support initializer lists and uniform initialization.
* MSVC does not support flexible array members (And neither does C++).

The Mach-O writer test still fails with this, but it all compiles and
all other tests pass.

llvm-svn: 155215
 2012-04-20 18:35:18 +00:00
Nick Kledzik 20e652d627 Add way to represent static archives in yaml test cases. 
Add SharedLibraryFile and ArchiveLibraryFile subclasses of File.

Add command line options to lld-core to set various ResolverOptions settings
and added lots of test cases to verify the options work.

llvm-svn: 155183
 2012-04-20 01:24:37 +00:00
Nick Kledzik bb963dfb7e Factor out core linking options from Platform in a new ResolverOptions 
class.  Change Resolver to no longer use Platform.  Core linking
now issues errors directly.  We need to factor that out later.

Rework how Darwin executable writer finds "main" atom.  It now
adds to core linking an Atom  which has a Reference to "main".  

llvm-svn: 155060
 2012-04-18 21:55:06 +00:00
Nick Kledzik 467209b1d4 Remove definedAtomsBegin() and co. so that C++11 range based for loops can be used 
llvm-svn: 154302
 2012-04-09 00:58:21 +00:00
Nick Kledzik 062a98cff0 Rename referencesBegin() to begin() so that C++11 range based for loops can be used 
llvm-svn: 154301
 2012-04-08 23:52:13 +00:00
Michael J. Spencer d73a53f158 [docs] Add more open projects. 
llvm-svn: 154277
 2012-04-08 03:47:49 +00:00
Michael J. Spencer f9bc125c5a [docs] Add open projects page that includes the TODO.txt files. 
llvm-svn: 154274
 2012-04-07 23:10:01 +00:00
Nick Kledzik 5a1528f49d Add to-do lists 
llvm-svn: 154246
 2012-04-07 01:54:17 +00:00
Nick Kledzik b334be1ed2 First implementation of Darwin Platform. It is rich enough to generate 
a hello world executable from atoms.  There is still much to be flushed out.
Added one test case, test/darwin/hello-world.objtxt, which exercises the
darwin platform.

Added -platform option to lld-core tool to dynamically select platform.

llvm-svn: 154242
 2012-04-07 01:31:00 +00:00
Michael J. Spencer 765792d5d1 Remove trailing whitespace. 
llvm-svn: 153964
 2012-04-03 18:40:27 +00:00
Michael J. Spencer e6203a57b5 Steal LLVM.h from Clang. This brings in very commonly used LLVM ADT/Support 
types into the lld namespace.

llvm-svn: 153963
 2012-04-03 18:39:40 +00:00
Michael J. Spencer b495562b5d Use the LLVM RTTI library. 
llvm-svn: 153912
 2012-04-02 23:56:36 +00:00
Michael J. Spencer c9d2506a76 Replace all uses of NULL with nullptr. 
llvm-svn: 153677
 2012-03-29 19:39:14 +00:00
Michael J. Spencer d58cf03cff llvm::OwningPtr -> std::unique_ptr. 
llvm-svn: 153620
 2012-03-29 00:49:50 +00:00
Michael J. Spencer cfd029fd91 Rearange header order to match llvm style. This exposed some missing types. 
Also fix some Platform.h includes that somehow got missed last time.

llvm-svn: 153590
 2012-03-28 19:04:02 +00:00
Michael J. Spencer 87c2994e24 Move Platform.h to Core as Core depends on Platform.h, and the Platform 
library depends on Core. This breaks that cycle.

llvm-svn: 153589
 2012-03-28 18:49:17 +00:00
Nick Kledzik f4e2c73fa7 Add Pass to instantiate GOT entries 
llvm-svn: 152874
 2012-03-15 23:36:24 +00:00
Michael J. Spencer 166b090a46 Audit uses of StringRef::getAsInteger. 
llvm-svn: 152565
 2012-03-12 18:13:36 +00:00
Michael J. Spencer e753cbc685 Fix MSVC incompatibilities. 
llvm-svn: 152389
 2012-03-09 05:27:43 +00:00
Michael J. Spencer b5ef4df359 StringRef is not null terminated. 
llvm-svn: 152388
 2012-03-09 05:27:20 +00:00
Michael J. Spencer 9f91f958b1 Use llvm/Support/DataTypes instead of stdint.h 
llvm-svn: 152387
 2012-03-09 05:27:11 +00:00
Michael J. Spencer 4ff3c79998 Use nullptr instead of NULL, and remove use of VLA. 
llvm-svn: 152386
 2012-03-09 05:26:55 +00:00
Nick Kledzik 1a6615dc88 Sources now require C++11 to build. 
Add first linker pass (StubsPass) which looks for calls to shared library
symbols and replaces them with calls to a StubAtom.  On ELF system, a "stub"
is a PLT entry.  Added a simple test case.

Pass a Platform object to YAML reader and writer for converting fixup kinds 
between names and values.

Change output of Resolver to be a File object instead of a vector of Atoms.
Thus, passes operate on a File instead of just Atoms.

Rework how to walk through a File's Atoms. Now iterator based instead of 
a method that visits each atom.  

llvm-svn: 152269
 2012-03-08 00:18:30 +00:00
Nick Kledzik 6bc04c6904 Add support for SharedLibraryAtoms (proxy atoms for exported symbols from a 
shared library) and AbsoluteAtoms (proxy atoms for absolute address (e.g. ROM)).
Redesign weak importing as can-be-null-at-runtime and can-be-null-at-build-time.
Add lots of test cases for all the above.

llvm-svn: 151204
 2012-02-22 21:56:59 +00:00
Nick Kledzik af18a2b29f use llvm::DenseMap instead of std::map 
llvm-svn: 150547
 2012-02-15 00:50:07 +00:00
Nick Kledzik 49d6cc8457 (no commit message) 
llvm-svn: 150539
 2012-02-15 00:38:09 +00:00
Nick Kledzik 23384e84af Add support for UndefinedAtom in yaml and native format. Add test cases with undefined atoms 
llvm-svn: 149962
 2012-02-07 02:59:54 +00:00
Michael J. Spencer 7aba8957c1 Cleanup system_error extensions. 
llvm-svn: 149432
 2012-01-31 21:47:13 +00:00
Michael J. Spencer 8c36f458fa &vectorval[0] is UB when vectorval.size() == 0. 
llvm-svn: 149430
 2012-01-31 21:46:41 +00:00
Michael J. Spencer 4e45ebb92c Fix use after free. 
llvm-svn: 149429
 2012-01-31 21:46:29 +00:00
Michael J. Spencer 846fe662ba If cont.size() is 0, the expression &_contentPool[result] has undefined 
behaivior because it indexes past the end of _contentPool.

llvm-svn: 149427
 2012-01-31 21:46:05 +00:00
Michael J. Spencer b2bd733593 Flexible array members are not in C++03, and MSVC doesn't support them. 
llvm-svn: 149426
 2012-01-31 21:45:53 +00:00
Nick Kledzik 55fd6beb00 First chunk of native object file reader/writer. The lld-core tool now reads YAML file, links, writes that out as native object format, then reads that native file, then writes the YAML to stdout. Thus the test suite tests both YAML reading/writing as well as native object file reading/writing. 
llvm-svn: 148256
 2012-01-16 22:03:44 +00:00
Nick Kledzik f4fb2c5ac8 A couple of big refactorings: 1) Move most attributes of Atom down to DefinedAtom, so only atoms representing definitions need to implement them. 2) Remove definitionTentative, definitionWeak, mergeDuplicates, and autoHide. Replace with merge and interposable attributes. 3) Make all methods on Atom be virtual so that future object file readers can lazily generated attributes 
llvm-svn: 147903
 2012-01-11 01:06:19 +00:00
Nick Kledzik bfedfc171d add initial support for coalescing by content (c-strings) with test case 
llvm-svn: 147799
 2012-01-09 20:18:15 +00:00
Nick Kledzik 7735a7d1a0 Support more Atom attributes. Add more test cases to lld-core 
llvm-svn: 147571
 2012-01-04 23:58:17 +00:00
Nick Kledzik 38eec3d931 Add more merging/coalescing test cases and make core linking work for them 
llvm-svn: 147130
 2011-12-22 02:38:01 +00:00
Nick Kledzik f46669c828 Cleaned up Atom attribues some more. Added lots of doxygen comments 
llvm-svn: 147105
 2011-12-21 23:29:36 +00:00
Nick Kledzik f96d0ade79 Refactor and comment Atom attributes. Replace combine() with internalName() and mergeDuplicates() 
llvm-svn: 146958
 2011-12-20 02:18:44 +00:00
Nick Kledzik 070e1a7643 add parseObjectTextFileOrSTDIN() utility 
llvm-svn: 146931
 2011-12-20 00:07:11 +00:00
Michael J. Spencer 773a8fb6ab Initial commit. Code by Nick Kledzik. Cleanups and build system by me. 
llvm-svn: 146844
 2011-12-18 08:27:59 +00:00