Commit Graph

7 Commits

Author SHA1 Message Date
Louis Dionne f4c1258d56 [libc++] Add an option to disable wide character support in libc++
Some embedded platforms do not wish to support the C library functionality
for handling wchar_t because they have no use for it. It makes sense for
libc++ to work properly on those platforms, so this commit adds a carve-out
of functionality for wchar_t.

Unfortunately, unlike some other carve-outs (e.g. random device), this
patch touches several parts of the library. However, despite the wide
impact of this patch, I still think it is important to support this
configuration since it makes it much simpler to port libc++ to some
embedded platforms.

Differential Revision: https://reviews.llvm.org/D111265
2021-10-12 06:08:23 -04:00
Mark de Wever 71909de374 [libc++] Disable incomplete library features.
Adds a new CMake option to disable the usage of incomplete headers.
These incomplete headers are not guaranteed to be ABI stable. This
option is intended to be used by vendors so they can avoid their users
from code that's not ready for production usage.

The option is enabled by default.

Differential Revision: https://reviews.llvm.org/D106763
2021-07-27 22:37:35 +02:00
Louis Dionne 0f31f68e26 [libc++] NFC: Sort header lists in test scripts 2021-07-05 14:58:32 -04:00
Arthur O'Dwyer 680c5d5de2 [libc++] Remove the line of stdout output from this generator. NFCI.
This line was confusing some people: it's not supposed to indicate
any kind of problem with the script, and I can't see any way it could
even help with troubleshooting. So, just silence it.
2021-04-30 18:08:00 -04:00
Louis Dionne 933518fff8 [libc++] Make LIBCXX_ENABLE_FILESYSTEM fully consistent
Previously, LIBCXX_ENABLE_FILESYSTEM controlled only whether the filesystem
support was compiled into libc++'s library. This commit promotes the
setting to a first-class option like LIBCXX_ENABLE_LOCALIZATION, where
the whole library is aware of the setting and features that depend on
<filesystem> won't be provided at all. The test suite is also properly
annotated such that tests that depend on <filesystem> are disabled when
the library doesn't support it.

This is an alternative to https://llvm.org/D94824, but also an improvement
along the lines of LIBCXX_ENABLE_LOCALIZATION that I had been wanting to
make for a while.

Differential Revision: https://reviews.llvm.org/D94921
2021-01-19 14:15:48 -05:00
Arthur O'Dwyer 2664f5d436 generate_header_tests.py: Sort the header files ASCIIbetically.
Otherwise they come out in random (inode?) order.

Also `chmod +x` the generator, and re-run it. Somehow on Marek's
machine it produced \r\n line endings?! Open all files with
`newline='\n'` so that (if the Python3 docs are correct)
that won't happen again.

Differential Revision: https://reviews.llvm.org/D93137
2020-12-14 09:56:07 -05:00
Marek Kurdej 6fd5a94eeb [libc++] Add a script to automatize updating test for a new header.
Idea from D92525.
This script globs include/ directory and updates the tests in test/libcxx.
This patch does not generate module.modulemap nor CMakeLists.txt.

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D92656
2020-12-10 08:37:50 +01:00