Commit Graph

2328 Commits

Author SHA1 Message Date
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
Michael J. Spencer 6344b322e2 Style fixes.
llvm-svn: 170623
2012-12-20 00:37:10 +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