This reverts commit 0c2a454845.
This was my mistake. When gdb can find its data directory it'll
import it automatically. If it can't (like when you're using a
version from a build folder) you need to give it the data
directory path.
We're safe to assume gdb is installed for testing purposes
so it'll import it for us.
I found this after upgrading from Ubuntu bionic (gdb 8.1.1) to
Focal (gdb 9.2). (where this test fails, but that's for a
different patch)
9.2 allows you to set breakpoint commands from
Python, which was added in 8.3.
(bintutils a913fffbdee21fdd50e8de0596358be425775678
"Allow breakpoint commands to be set from Python")
The reason this test never failed before was because it did so
silently. "source <python file>" doesn't fail even if that script
raises an Exception.
To fix this extend the gdb lit feature to check that:
* gdb exists
* has Python support
* allows you to set breakpoint commands
Reviewed By: #libc, ldionne
Differential Revision: https://reviews.llvm.org/D110334
Once all the bots are passing with from-scratch configs, we can attempt
to make the from-scratch config the default configuration.
Differential Revision: https://reviews.llvm.org/D103417
It was added after we changed the way the CI jobs are run, in particular
how they are pinned down to Linux instances only. As a result, the job
would sometimes run on Mac machines, which we're trying to keep only for
jobs that absolutely need it due to capacity concerns.
The target platform could differ from the host platform for the cross
platform builds. Some tests are depended on the build host features and
they need to determine a proper platform environment.
This commit adds a build host platform name feature for the libc++ tests
in format `buildhost=<platform>`, such as `buildhost=linux`, `buildhost=darwin`,
`buildhost=windows`, etc.
The Windows host gets two features: one `buildhost=windows` and another based
on Windows "sub-system", such as `buildhost=win32`, `buildhost=cygwin`, etc.
Differential Revision: https://reviews.llvm.org/D102045
This option is used to select between the format headers output column
width option. This option should be independent of the locale setting.
It's encouraged to default to Unicode unless the platform doesn't offer
that option.
[format.string.std]/10
```
For the purposes of width computation, a string is assumed to be in a
locale-independent, implementation-defined encoding. Implementations
should use a Unicode encoding on platforms capable of displaying Unicode
```
Reviewed By: #libc, ldionne, vitaut
Differential Revision: https://reviews.llvm.org/D103379
Based on https://github.com/NuxiNL/cloudlibc, it appears that the CloudABI
project has been abandoned. This patch removes a bunch of CloudABI specific
logic that had been added to support that platform.
Note that some knobs like LIBCXX_ENABLE_STDIN and LIBCXX_ENABLE_STDOUT
coud be useful in their own right, however those are currently broken.
If we want to re-add such knobs in the future, we can do it like we've
done it for localization & friends so that we can officially support
that configuration.
Differential Revision: https://reviews.llvm.org/D108637
All supported compilers have supported deduction guides in C++17 for a
while, so this isn't necessary anymore.
Differential Revision: https://reviews.llvm.org/D108213
This is a workaround until https://reviews.llvm.org/D81892 is merged
and the internal Lit shell stops conflating error output with normal
output. Without this, any program that writes to stderr will trip up
the programOutput function, because it will pick up the '# command stderr:'
string and think it's part of the command's stdout.
rdar://81056048
Differential Revision: https://reviews.llvm.org/D107912
All supported compilers implement __builtin_addressof. Even MSVC implements
addressof as a simple call to __builtin_addressof, so it would work if we
were to port libc++ to that compiler.
Differential Revision: https://reviews.llvm.org/D107905
All supported compilers have implemented __has_unique_object_representations
for a while, so it's reasonable to remove the workaround.
Differential Revision: https://reviews.llvm.org/D107834
All supported compilers have been supporting __is_aggregate for a long
time now, so it's reasonable to remove this workaround.
Differential Revision: https://reviews.llvm.org/D107833
All supported compilers should support
_LIBCPP_HAS_NO_BUILTIN_IS_CONSTANT_EVALUATED so this can be removed.
Reviewed By: ldionne, #libc, Quuxplusone
Differential Revision: https://reviews.llvm.org/D107239
We just had a case where a build bot stalled in an infinite loop during
testing, and the whole pipeline got stuck. To avoid that from happening
in the future, use a timeout on BuildKite jobs.
Differential Revision: https://reviews.llvm.org/D107765
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
Even though the standalone build is deprecated, some people are still
relying on it (including libc++ itself for some configurations). Setting
the target triple will ensure that the build and the test suite behaves
consistently in the standalone and normal builds.
Differential Revision: https://reviews.llvm.org/D106800
The Generated output CI job only tests for modified files. This job
should also fail the generated output contains new files.
It would be possible to test modified and untracked files in one
execution of `git ls-files`. However the diff is stored as an artifact
so the execution of `git diff` would still be required.
Discussion: Would it be better to do `git ls-files -om` and remove the
excution of
`! grep -q '^--- a' ${BUILD_DIR}/generated_output.patch || false` ?
(Obviously then the name `generated_output.untracked` should change to
something like `generated_output.status`)
Reviewed By: #libc, ldionne
Differential Revision: https://reviews.llvm.org/D106534
The new testing configuration did not turn off #pragma system_header,
which means we were not seeing warnings in system headers.
Differential Revision: https://reviews.llvm.org/D106187
libc++ has started splicing standard library headers into much more
fine-grained content for maintainability. It's very likely that outdated
and naive tooling (some of which is outside of LLVM's scope) will
suggest users include things such as `<__algorithm/find.h>` instead of
`<algorithm>`, and Hyrum's law suggests that users will eventually begin
to rely on this without the help of tooling. As such, this commit
intends to protect users from themselves, by making it a hard error for
anyone outside of the standard library to include libc++ detail headers.
This is the first of four patches. Patch #2 will solve the problem for
pre-processor `#include`s; patches #3 and #4 will solve the problem for
`<__tree>` and `<__hash_table>` (since I've never touched the test cases
that are failing for these two, I want to split them out into their own
commits to be extra careful). Patch #5 will concern itself with
`<__threading_support>`, which intersects with libcxxabi (which I know
even less about).
Differential Revision: https://reviews.llvm.org/D105932
This configuration is interesting because GCC has a different level of
strictness for some C++ rules. In particular, it implements the older
standards more stringently than Clang, which can help find places where
we are non-conforming (especially in the test suite).
Differential Revision: https://reviews.llvm.org/D105936
The feature was always defined, which means that the two test cases
guarded by it were never run.
Differential Revision: https://reviews.llvm.org/D106062
As we automate more and more things in the library, it becomes useful for
contributors to have a single target for running all the automation as
part of their workflow. This commit adds a new `libcxx-generate-files`
target that should re-generate all the auto-generated files in the library.
As a fly-by, I also revamped the documentation on Contributing to account
for this new target and present it as a bullet list of things to check
before committing. I also added a few things that are often overlooked
to that list, such as updating the synopsis and the status files.
Differential Revision: https://reviews.llvm.org/D106067
This is what ffccf96e90 should have enabled, however the symlink
in the Docker image was not pointing to the right compiler, so we were
testing with Clang 12 instead of ToT.
For reasons unknown, the build is now using compilers
from /usr/bin instead of /usr/local/bin which is where
we have our clang-12 aliases placed.
Reviewed By: #libc, ldionne
Differential Revision: https://reviews.llvm.org/D105704
It makes the most sense to test with Clang ToT by default since that's
exactly what we're trying to QA: that libc++ works with whatever compiler
we're going to release next.
David Spickett