Commit Graph

95 Commits

Author SHA1 Message Date
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
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 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 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 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 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 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 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 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
Michael J. Spencer 8ac9150556 [ELF][Reader] Ignore SHF_GROUP when switching on flags.
llvm-svn: 170624
2012-12-20 00:37:24 +00:00