LLD still accepts both Unix and Windows style options when it's run as
link.exe. This patch does not change functionality.

llvm-svn: 187086

The /include command line option is equivalent to Unix --undefined
option, which forces the linker to resolve the given symbol name
as if it's an unresolved symbol in one of its input files. This feature
is used to link an additional object file or a shared library that no
input files refer to.

llvm-svn: 187084

llvm-svn: 186996

llvm-svn: 186957

llvm-svn: 186911

llvm-svn: 186888

llvm-svn: 186882

llvm-svn: 186843

llvm-svn: 186771

llvm-svn: 186755

llvm-svn: 186739

llvm-svn: 186654

llvm-svn: 186650

llvm-svn: 186648

llvm-svn: 186645

The logic to search a library from the library paths will be implemented
in a different patch.

llvm-svn: 186644

llvm-svn: 186640

Add support for -all_load. Enhance DarwinLdDriverTest unit test test cases to test all options parsed so far

llvm-svn: 186626

llvm-svn: 186612

llvm-svn: 186450

llvm-svn: 186428

This is a follow up patch for r186336.

Reviewers: LegalizeAdulthood

CC: silvas, llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D1144

llvm-svn: 186384

llvm-svn: 186382

llvm-svn: 186368

This reverts commit 185657. It will be used by unit tests.

llvm-svn: 186366

- Make a const reference instead of copying an object
- Fix a comment

llvm-svn: 186355

llvm-svn: 186353

llvm-svn: 186352

llvm-svn: 186346

Emit .reloc section. This is the first step to support DLL creation. The
executable doesn't need .reloc section, but the DLL does.

Reviewers: Bigcheese

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D1126

llvm-svn: 186336

This patch adds a new pass, IdataPass, to transform shared atom references
to real references and to construct the .idata section data. With this patch
lld can produce a working Hello World program by linking it against
kernel32.dll and user32.dll.

Reviewers: Bigcheese

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D1096

llvm-svn: 186071

llvm-svn: 186066

Contents of ".reloc" section depends on the addresses of other sections, so
the section cannot be created until all the other sections are created and get
their memory addresses (RVAs). That means that computation of section size
needs to be at least two pass.

Techynically there's no reason to compute it all at once, but instead we can
compute the address of a section as added to the output file. Doing so helps
us to create ".reloc" section.

llvm-svn: 185902

llvm-svn: 185803

llvm-svn: 185657

llvm-svn: 185655

llvm-svn: 185534

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