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rustbuild: Implement testing for Android
This commit enhances the rustbuild support for testing Android to the same level
of parity as the makefiles. This involved:
* A new step to copy the standard library and other shared objects to the
emulator. This is injected as a dependency of all test suites for Android.
* Appropriate arguments are now passed through to compiletest to ensure that it
can run tests.
* When testing the standard library the test executables are probed for and
shipped to the emulator to run for each test.
* Fixing compilation of compiler-rt a bit
All support added here is modeled after what's found in the makefiles, just
translating one strategy to another. As an added bonus this commit adds support
for the "check" step to automatically run tests for all targets, and the
"check-target" step now runs all tests for a particular target, automatically
filtering the tests if the target is detected as a cross-compile.
Note that we don't (and probably won't) have a bot which is actually going to
exercise any of this just yet, but all tests have passed locally for me at
least.
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Currently if an LLVM build is interrupted *after* it creates the llvm-config
binary but before it's done it puts us in an inconsistent state where we think
LLVM is compiled but it's not actually. This tweaks our logic to only consider
LLVM done building once it's actually done building.
This should hopefully alleviate problems on the bots where if we interrupt at
the wrong time it doesn't corrupt the build directory.
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This commit enhances the rustbuild support for testing Android to the same level
of parity as the makefiles. This involved:
* A new step to copy the standard library and other shared objects to the
emulator. This is injected as a dependency of all test suites for Android.
* Appropriate arguments are now passed through to compiletest to ensure that it
can run tests.
* When testing the standard library the test executables are probed for and
shipped to the emulator to run for each test.
* Fixing compilation of compiler-rt a bit
All support added here is modeled after what's found in the makefiles, just
translating one strategy to another. As an added bonus this commit adds support
for the "check" step to automatically run tests for all targets, and the
"check-target" step now runs all tests for a particular target, automatically
filtering the tests if the target is detected as a cross-compile.
Note that we don't (and probably won't) have a bot which is actually going to
exercise any of this just yet, but all tests have passed locally for me at
least.
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Looks like compiler-rt has been tweaked slightly during the last update,
propagate these changes to rustbuild as well.
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This commit expands the bootstrap build system's `README.md` as well as ensuring
that all API documentation is present and up-to-date. Additionally a new
`config.toml.example` file is checked in with commented out versions of all
possible configuration values.
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This commit adds support in rustbuild for running all of the compiletest test
suites as part of `make check`. The `compiletest` program was moved to
`src/tools` (like `rustbook` and others) and is now just compiled like any other
old tool. Each test suite has a pretty standard set of dependencies and just
tweaks various parameters to the final compiletest executable.
Note that full support is lacking in terms of:
* Once a test suite has passed, that's not remembered. When a test suite is
requested to be run, it's always run.
* The arguments to compiletest probably don't work for every possible
combination of platforms and testing environments just yet. There will likely
need to be future updates to tweak various pieces here and there.
* Cross compiled test suites probably don't work just yet, support for that will
come in a follow-up patch.
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This commit should help configure our OSX rustbuild builder for targeting 10.7.
A key part of this is using `libc++` instead of `libstdc++` as apparently it's
more filled out and otherwise LLVM's cmake configuration would fail.
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This reverts commit afbbb74fecb3945336520d1930bd52bed9ed0819.
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workaround for #32360
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Apparently the NetBSD compiler-rt builds into the linux directory as well.
I'm... detecting a trend!
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This commit fixes our support for cross compiling a compiler to run on FreeBSD.
Over the weekend I managed to get a cross compiler from Linux to FreeBSD [1]
which I hope to soon use to start producing FreeBSD nightly compilers. With the
`make dist` support added in #32237 we should be able to produce standard
rustc/rust-std packages for FreeBSD through a new slave with this cross compiler.
Currently, however, we don't "Just Work" when cross compiling FreeBSD and a
number of changes were required (part of this PR). They include:
* A few build fixes were needed in LLVM. Our own branch has been rebased on the
actual 3.8 release and I applied one extra commit [2] which contains two fixes:
1. The LLVM CMake build system passes the `-Wl,-z,defs` flag on many
platforms, but *not* when `CMAKE_SYSTEM_NAME` is "FreeBSD". Unfortunately
this doesn't take into account when we're cross compiling, and as predicted
the build will fail if `-Wl,-z,defs` is passed (see [3] for more info). To
fix this we test `TARGET_TRIPLE` instead of the `CMAKE_SYSTEM_NAME` which
is what we're compiling for which fixes the problem.
2. The `PATH_MAX` constant is apparently defined in a different location than
many other Unix systems, so a file which required this just needed some
help to keep compiling.
* Support for compiling compiler-rt with CMake has been added to rustbuild. It
looks like it just emulates Linux in what it compiles as it didn't seem to
naturally produce anything else... At least the architecture is right, so
seems good for now at least!
[1]: https://github.com/alexcrichton/port-of-rust/blob/master/prebuilt/freebsd/Dockerfile
[2]: https://github.com/rust-lang/llvm/commit/be89e4b5
[3]: https://bugs.webkit.org/show_bug.cgi?id=138420
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Needs a different target to get built and also we apparently need to appease the
C++ compiler somehow.
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This commit is the start of a series of commits which start to replace the
makefiles with a Cargo-based build system. The aim is not to remove the
makefiles entirely just yet but rather just replace the portions that invoke the
compiler to do the bootstrap. This commit specifically adds enough support to
perform the bootstrap (and all the cross compilation within) along with
generating documentation.
More commits will follow up in this series to actually wire up the makefiles to
call this build system, so stay tuned!
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