* 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

llvm-svn: 163573

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

llvm-svn: 154301

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

llvm-svn: 153964

types into the lld namespace.

llvm-svn: 153963

Also fix some Platform.h includes that somehow got missed last time.

llvm-svn: 153590

llvm-svn: 152389

llvm-svn: 152388

llvm-svn: 152386

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

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

llvm-svn: 150539

llvm-svn: 149962

llvm-svn: 149430

behaivior because it indexes past the end of _contentPool.

llvm-svn: 149427

llvm-svn: 149426

First chunk of native object file reader/writer.  The lld-core tool now reads YAML file, links, writes that out as native object format, then reads that native file, then writes the YAML to stdout.  Thus the test suite tests both YAML reading/writing as well as native object file reading/writing.

llvm-svn: 148256