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40 Commits

Author SHA1 Message Date
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
Shankar Easwaran
3256d4ff62 add elf targethandler 
llvm-svn: 173430
 2013-01-25 07:39:18 +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
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
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
343ecbd6ba Fix shadowed variable warning 
llvm-svn: 172482
 2013-01-14 22:10:22 +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
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
fd3981d6db [ELF] Update to llvm change. 
llvm-svn: 171652
 2013-01-06 05:40:27 +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
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
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
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
Michael J. Spencer
a1913fbda9 [ELF] Fix -Woverloaded-virtual 
llvm-svn: 167246
 2012-11-01 19:46:19 +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
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
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
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
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