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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
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to reflect the new license. These used slightly different spellings that
defeated my regular expressions.
We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.
Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.
llvm-svn: 351648
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This is basically part 2 of r313694.
It's a little unfortunate that I had to copy-paste atomic_support.h,
but I don't really see any alternative.
The refstring.h changes are the same as the libcxx changes in r313694.
llvm-svn: 330162
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This patch removes the dependancy on libc++'s __refstring header,
which was only a header in the first place so that libc++abi could
build library code using it, and not because libc++ needed it in
the headers.
This patch allows libc++ to stop shipping <__refstring> publicaly
at the cost of duplicating it across projects. Ideally libc++abi
would always require the libc++ sources when building, but that's
a separate discussion I plan to start on the mailing lists shortly.
llvm-svn: 307748
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