llvm-svn: 189877

llvm-svn: 189876

llvm-svn: 189874

llvm-svn: 189873

This adds init/fini support for Hexagon.

llvm-svn: 189872

This changes the interface of createLinkerInput to use ErrorOr, so that
errors from the linker can be captured.

Also adds a convenience function for error strings to be returned from
file nodes.

llvm-svn: 189871

llvm-svn: 189865

llvm-svn: 189847

llvm-svn: 189826

dependencies should remain weak, not get promoted to undef or dropped.

llvm-svn: 189793

Differential Revision: http://llvm-reviews.chandlerc.com/D1577

llvm-svn: 189777

llvm-svn: 189775

llvm-svn: 189771

llvm-svn: 189752

llvm-svn: 189751

This creates .init_array/.fini_array section for X86_64 ELF
targets and executes init/fini functions specified by the
-init/-fini options respectively.

llvm-svn: 189719

This adds an API to the LinkingContext for flavors to add Internal files
containing atoms that need to appear in the YAML output as well, when -emit-yaml
switch is used.

Flavors can add more internal files for other options that are needed.

llvm-svn: 189718

llvm-svn: 189614

We added layout edges to the head atoms in grouped sections. That was wrong,
because the head atom needs to be followed by the other atoms in the *same*
section, not by the other section contents. With this patch, layout edges are
added from tail atom, which is the last atom in a section, to head atom.

llvm-svn: 189573

Because of a bug, the last atom of each section contained a garbage at the
end of its data. In most cases the garbage is harmless but it could have cause
SEGV.

llvm-svn: 189572

llvm-svn: 189570

We were creating undefined atoms for common symbols by mistake. That did not
lead to a link failure, for undefined atoms would be resolved by common symbols
in the same file, but that's a waste of resource.

llvm-svn: 189534

We scanned the symbol table twice; first to gather all regular symbols, and
second to process aux symbols. That's a bit inefficient and complicated. We
can instead cache aux symbols in the first pass, to eliminate the need of the
second pass.

llvm-svn: 189525

llvm-svn: 189505

llvm-svn: 189413

Differential Revision: http://llvm-reviews.chandlerc.com/D1527

llvm-svn: 189318

llvm-svn: 189310

llvm-svn: 189308

With this patch the entry symbol is treated as an undefined symbol, to force
the resolver to resolve the entry symbol.

Differential Revision: http://llvm-reviews.chandlerc.com/D1524

llvm-svn: 189307

This should have been done in r187823 when I renamed LinkingContext
from TargetInfo. I missed a few files.

llvm-svn: 189298

Patch by Jesús Serrano García.

llvm-svn: 189267

The cleanup includes :-

* Rename ambiguous Header class to ELFHeader
* Convert Chunk contentype and kind to be a enumerated class
* Remove functions that are not being used, avoids future confusion

llvm-svn: 189209

llvm-svn: 189207

llvm-svn: 189197

This change processes fini_array section in addition to processing
init_array sections. This also makes functions registered at compile
time for initialization and finalization to be run during execution

llvm-svn: 189196

This completes the subsystem name parsing to support the identifiers that the
Microsoft link.exe linker supports.  "windows" and "console" are left as the
first items as they are the expected common paths.

Signed-off-by: Saleem Abdulrasool <compnerd@compnerd.org>
llvm-svn: 189181

in order to match link.exe's behaviour.

Patch by Ron Ofir.

llvm-svn: 189159

Patch by Ron Ofir.

llvm-svn: 189151

There may be relocations that may be pointing to the section
even if the section sizes are 0. We shouldnot ignore them
for that regard.

llvm-svn: 189139

There is no change in functionality, this uses the defined way to access
the relocation section that belongs to a particular section.

llvm-svn: 189138