This is a follow-up patch for r185524. Being assert enabled does not mean
that DEBUG() is enabled, so we need to check the existence of DEBUG() itself.

llvm-svn: 185619

llvm-svn: 185534

llvm-svn: 185524

The optional data directory header contains addresses to some atoms such
as the import address table in data section. Such fields can naturally
be set by relocation if we make the optional data driectory as an atom.

Currently we assume that atoms are always in a section, so we can't create
a file header with atoms. This patch separates section chunk from atom
chunk, to allow atom-based file header.

llvm-svn: 185521

llvm-svn: 185517

A hint is an index of the export pointer table in a DLL, at which
PE/COFF loader starts looking for a symbol name. The import library
comes with hints and symbol pairs, and as long as hints are in sync
with the actual symbol table in DLL, the symbols will be resolved
quickly. So, we shouldn't ignore hints but propagate them to an output.

llvm-svn: 185516

llvm-svn: 185515

llvm-svn: 185420

llvm-svn: 185310

llvm-svn: 185309

llvm-svn: 185308

llvm-svn: 185307

llvm-svn: 185285

llvm-svn: 185283

function is not used in release build.

llvm-svn: 185248

llvm-svn: 185247

llvm-svn: 185205

llvm-svn: 185200

In order to support linking against DLL, the linker needs to create defined
atoms for jump tables and etc. Because such atoms are not read from a file,
they lack some information such as an ordinal. With this patch, COFFDefinedAtom
is split into two classes; one is the base class of all COFF defined atoms, and
another is a concrete class for atoms read from file. More classes inheriting
COFFBaseDefinedAtom will be added for jump tables and etc.

llvm-svn: 185195

llvm-svn: 185134

llvm-svn: 185133

llvm-svn: 185130

llvm-svn: 185129

llvm-svn: 185128

Templatize connectAtomsWithLayoutEdge() so that it can handle other types of
defined atoms.

llvm-svn: 185125

llvm-svn: 185102

This renames variable name to reflect initial undefined symbols that are
defined by the linker -u option.

This doesnot change any functionality in lld, and updates code to reflect
Nick's comment.

llvm-svn: 184682

llvm-svn: 184653

llvm-svn: 184651

llvm-svn: 184649

llvm-svn: 184589

llvm-svn: 184585

llvm-svn: 184521

This change moves the functionality of undefinedSymbols that were created in
ELFTargetInfo into TargetInfo. Looks like MachO/Windows use similiar options
like in ELF for creating undefined symbols when the linker is invoked.

Address comment from Ruiu.

(No change in functionality, except moving the functionality from ELF to
TargetInfo, so that multiple architectures can use the same)

llvm-svn: 184398

Reviewers: shankarke

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D998

llvm-svn: 184327

llvm-svn: 184266

Extract atom definitions as Atoms.h so that we can use them in other files.
Also applied clang-format to Atoms.h.

Reviewers: shankarke

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D995

llvm-svn: 184124

This is the first patch toward full DLL support. With this patch, lld can
read .lib file for a DLL.

Reviewers: Bigcheese

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D987

llvm-svn: 184101

Reviewers: shankarke

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D988

llvm-svn: 184091

Reviewers: shankarke

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D989

llvm-svn: 184085