* 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

llvm-svn: 165310

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

  * Return correct size and alignment for common symbols.

llvm-svn: 165170

Reorganize to derive all sections from SectionChunk.
Construct section table header from SectionChunk.

llvm-svn: 164981

  * 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

llvm-svn: 164846

llvm-svn: 164732

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

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

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

llvm-svn: 163573

llvm-svn: 160982

llvm::report_fatal_error.

llvm-svn: 160864

llvm-svn: 160740

with subsequent changes to use lower level interfaces done by me.

llvm-svn: 160732

llvm-svn: 160370

llvm-svn: 158944

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

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

remove return statements after llvm_unreachable() as the compiler no longer warns abot missing return values

llvm-svn: 158544

llvm-svn: 158542

llvm-svn: 158541

llvm-svn: 158375

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

put the public function createReaderPECOFF() in the lld namespace and everything else in is own namespace

llvm-svn: 158135

llvm-svn: 158134

llvm-svn: 158133

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