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4 Commits

Author SHA1 Message Date
David Zarzycki 7568899b35 [Testing] unbreak after r372963 
llvm-svn: 372967
 2019-09-26 11:32:02 +00:00
Eric Fiselier 5a235865f7 Cleanup new cxa guard implementation. 
* Add TSAN annotations around the futex syscalls.
* Test that the futex syscall wrappers actually work.
* Fix bad names.

llvm-svn: 359069
 2019-04-24 04:21:05 +00:00
Eric Fiselier 27fd2f60ee Work around GCC test failure. 
llvm-svn: 359065
 2019-04-24 02:21:13 +00:00
Eric Fiselier 70ebeabfb8 Rewrite cxa guard implementation. 
This patch does three main things:
  (1) It re-writes the cxa guard implementation to make it testable.
  (2) Adds support for recursive init detection on non-apple platforms.
  (3) It adds a futex based implementation.

The futex based implementation locks and notifies on a per-object basis, unlike the
current implementation which uses a global lock for all objects. Once this patch settles
I'll turn it on by default when supported.

llvm-svn: 359060
 2019-04-24 01:47:30 +00:00