constants and string literals which the linker should coalesce.

llvm-svn: 172495

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

llvm-svn: 171916

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

llvm-svn: 171531

llvm-svn: 171528

llvm-svn: 169306

llvm-svn: 167394

llvm-svn: 158542

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: 157253

llvm-svn: 156143

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

llvm-svn: 155847

llvm-svn: 155846

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

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

llvm-svn: 154302

llvm-svn: 154301

llvm-svn: 154277

llvm-svn: 154274

llvm-svn: 154246

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

llvm-svn: 153912

llvm-svn: 153677

llvm-svn: 153620

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

llvm-svn: 153590

llvm-svn: 152874

llvm-svn: 152565

llvm-svn: 152389

llvm-svn: 152388

llvm-svn: 152387

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: 150547

llvm-svn: 150539

llvm-svn: 149962