[PATCH] D16544: [libcxx] Framework to allow testing of static libc++abi

Ben Craig via cfe-commits cfe-commits at lists.llvm.org
Mon Jan 25 11:10:55 PST 2016

bcraig created this revision.
bcraig added reviewers: mclow.lists, EricWF, jroelofs.
bcraig added a subscriber: cfe-commits.

NOTE: related libc++abi changes are in a different patch that will be posted shortly.
Tested with static libcxx and libcxxabi against custom embedded target.
Tested with static libcxx and libcxxabi against Linux x64.
Tested with shared libcxx and libcxxabi against Linux x64.
Really hoping that I didn't accidentally break Mac.

These changes make linking against static libraries more explicit.  Instead
of using -lc++ and -lc++abi in the tests, an absolute path to the library is
provided instead.

The choices of shared vs. static, and the choices of library paths for both
libcxx and libcxxabi needed to be exchanged for this to work.  In other words,
libcxx tests need to know the library path of libcxxabi, and whether libcxxabi
is a static or shared library.

Some Mac specific logic for testing against libc++abi had to be moved from
libcxxabi's config.py, as it was overriding choices made in libcxx's config.py.
That logic is now in libcxx's target_info.py.

Testing a static libcxx on Linux will now automatically link in librt most of
the time.  Previously, lots of pthread tests would fail because of an
unresolved clock_gettime.



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