I was spotting garbage in the output. I'd like to just zero the entire
ELFYAML::Section to be sure, but it contains non-POD types. (I'm also
trying to avoid bloating the ELFYAML::Foo classes with a bunch of
constructor code).

No test, since this is by its very nature unpredictable. I'm pretty sure
that one of the sanitizers would catch it immediately though.

llvm-svn: 184160

llvm-svn: 184115

llvm-svn: 184025

llvm-svn: 184022

For consistency, change the address in the test case from 0xDEADBEEF to
0xCAFEBABE since 0xCAFEBABE that actually has a 2-byte alignment.

llvm-svn: 183962

llvm-svn: 183955

llvm-svn: 183954

The current functionality is extremely basic and a bit rough around the
edges, but it will flesh out in future commits.

llvm-svn: 183953

Should bring bots back to life.

llvm-svn: 183715

Currently, only emitting the ELF header is supported (no sections or
segments).

The ELFYAML code organization is broadly similar to the COFFYAML code.

llvm-svn: 183711

llvm-svn: 183403

This avoids making assumptions about the data representation.

llvm-svn: 183349

Previously, yaml2coff.cpp had a writeHexData static helper function to
do this, but it is generally useful functionality.

Also, validate hex strings up-front to avoid running having to handle
errors "deep inside" the yaml2obj code (it also gives better diagnostics
than it used to).

llvm-svn: 183345

llvm-svn: 183335

See the comment in yaml2obj.cpp for why this is currently needed.
Eventually we can get rid of this, but for now it is needed in order to
make forward progress with adding ELF support, and should be
straightforward to remove later.

Also, preserve the default of COFF, to avoid breaking existing tests.
This policy can easily be changed later though.

llvm-svn: 183332

llvm-svn: 183042

llvm-svn: 183040

llvm-svn: 182172

llvm-svn: 182169

The alignment is just a byte in the middle of Characteristics, not an
independent flag. Making it an independent field in the yaml
representation makes it more yamlio friendly.

llvm-svn: 181243

llvm-svn: 180247

llvm-svn: 180137

The COFFParser now contains only a COFFYAML::Object and the string table
(which is recomputed, not serialized).

The structs in COFFParser now all begin with a Header field with what is
actually on the COFF object. The other fields are things that are semantically
part of the struct (relocations in a section for exmaple), but are not actually
represented that way in the object file.

llvm-svn: 180134

llvm-svn: 180115

Instead, use MappingNormalization to directly parse COFF::header. Also change
the naming convention of the helper classes to be a bit shorter.

llvm-svn: 179917

Use MappingNormalization to read a COFF::relocation directly.

No functionality change.

llvm-svn: 179891

llvm-svn: 178904