Commit Graph

4246 Commits

Author SHA1 Message Date
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 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
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
Michael J. Spencer 3a772ebbe4 [CMake] Add lld to the list of test dependencies.
llvm-svn: 171580
2013-01-05 00:51:04 +00:00
Michael J. Spencer 70d0e10c5f Target test fix.
llvm-svn: 171579
2013-01-05 00:47:15 +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 bc7f2a7359 [Driver] Add x86-64 target.
llvm-svn: 171557
2013-01-04 23:34:29 +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
Michael J. Spencer 74f29afd58 [Driver] Add test.
llvm-svn: 169721
2012-12-10 02:53:10 +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 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
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
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 cc613e1c25 Changed test output comparison to be consistent with the way llvm-objdump and llvm-readobj work.
llvm-svn: 165048
2012-10-02 21:12:21 +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
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
Sid Manning 37e3120af8 Fix environment path problem
llvm-svn: 163929
2012-09-14 20:04:36 +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 298f38ee68 Hook up lld-test to llvm check-all. Patch by Andy Gibbs!
llvm-svn: 161067
2012-07-31 18:44:52 +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 51b1cc1428 Add test cases for ReaderELF.
llvm-svn: 160737
2012-07-25 17:14:55 +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 d0d5ec4a38 Convert the YAMLReader to use LLVM/Support/YAMLParser.
llvm-svn: 155847
2012-04-30 21:20:13 +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 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
Nick Kledzik f4e2c73fa7 Add Pass to instantiate GOT entries
llvm-svn: 152874
2012-03-15 23:36:24 +00:00
Michael J. Spencer e753cbc685 Fix MSVC incompatibilities.
llvm-svn: 152389
2012-03-09 05:27:43 +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 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
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
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