This patch splits X86_64Target specific code so that 
the dynamic atoms and the Relocation handlers are in seperate 
files for easier maintenace. The files are sure to grow and this 
makes it easier to work with.

* There is no change in functionality *

llvm-svn: 182076

llvm-svn: 182033

llvm-svn: 182031

llvm-svn: 181852

llvm-svn: 181822

llvm-svn: 181804

llvm-svn: 181752

Summary:
Split buildFollowOnTable to small functions to improve
code readability and remove code duplication. No change
in functionality.

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D790

llvm-svn: 181749

llvm-svn: 181655

llvm-svn: 181652

llvm-svn: 181640

llvm-svn: 181622

Layoutpass by ordering atoms if they appear in the override
list first and then looking at the way of ordering atoms in
the default way.

The fix also fixes issues with the sizes of the sections,
that appear in the output properly too.

The commit also adds a testcase(orderatoms-by-override.test)
to test it and fixes all the other relevant testcases.

llvm-svn: 181605

Also shuffle the atoms so that it can verify the layout pass
actually changed the layout.

llvm-svn: 181573

llvm-svn: 181547

llvm-svn: 181503

llvm-svn: 181492

We need to acquire a lock before signal a condition.
Otherwise threads waiting on a condition variable can
miss a signal.

Consider two threads: Thread A executing dec() and thread
B executing sync(). The initial value of _count is 1. If
these two threads are interleaved in the following order,
thread B misses the signal sent by thread A, because at the
time thread A sends a signal, B is not waiting for it.

  Thread A                 |   Thread B
                           |   std::unique_lock<std::mutex> lock(_condMut);
                           |   while (!(_count == 0)) {
  if (--_count == 0)       |
    _cond_notify_all()     |
                           |     _cond.wait();
                           |   }

Note that "wait(lock, pred)" is equivalent to "while(!pred())
wait(lock)", so I expanded it in the above example.

Reviewers: Bigcheese

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D764

llvm-svn: 181484

Summary:
Add the explicit keyword to one-parameter
constructors to prevent unintended type conversions.

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D765

llvm-svn: 181483

llvm-svn: 181473

llvm-svn: 181325

llvm-svn: 181288

This makes the target handler a constructor argument because the constructor of
OutputELFWriter relies on it being initialized.

llvm-svn: 181280

llvm-svn: 181279

llvm-svn: 181244

llvm-svn: 181188

llvm-svn: 180872

llvm-svn: 180769

[lld][ELF] (no testable functionality change) resize the number of entries in the string table for static linking

llvm-svn: 180692

[lld][ELF] (no testable functionality change) resize the number of entries in the string table for static linking

llvm-svn: 180691

llvm-svn: 180690

Patch by Rui Ueyama.

llvm-svn: 180209

Suggested by Nick Kledzik in reference to r179590.

llvm-svn: 179617

Moved llvm_unreachable out of switch blocks to avoid the "control reaches end of non-void function" warning.

llvm-svn: 179590

Uses ConcRT and PPL on Windows.

llvm-svn: 179397

llvm-svn: 179364

llvm-svn: 179264

llvm-svn: 179260

to the list of undefined atoms. 

The processing of undefined atoms from dynamic libraries is controlled by
use-shlib-undefines command line option. 

This patch also adds additional command line arguments to allow/disallow
unresolved symbols from shared libraries and mimics GNU ld behavior.

llvm-svn: 179257

llvm-svn: 178940