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We need to add runners designed for an aarch64 host system, and it'd be
nice to return an error message if someone tries to run an image
designed for an host architecture in another one.
To start the work on this, this commit moves all the existing builders
in the host-x86_64 directory, and changes the run.sh script to look up
the image in the correct directory based on the host architecture.
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This commit switches the `--enable-extended` option on the arm-related
dist builders to `--enable-full-tools`. This alias in `config.py`
corresponds to enabling a few more options:
* `rust.lld = true` - this is the main purpose of this PR, to enable LLD
on ARM-related platforms. This means it will effectively unlock
compilation of wasm programs from an arm host.
* `rust.llvm-tools = true` - it turns out that this option is largely
ignored in rustbuild today. This is only read in one location to set
some flags for the `llvm-tools` package, but the `llvm-tools` package
is already produced on all of these builders. It's predicted that this
will have no effect on build times.
* `rust.codegen-backends = ['llvm']` - historically this also enabled
the emscripten backend, but that has long since been removed.
This brings the ARM dist builders in line with the x86_64 dist builders
using this flag. The hope is that the extra time spent on CI building
LLD will acceptable because it's cached by `sccache`, LLD is a
relatively small C++ project, and the dist builders are all clocking
well under 3 hours (the slowest of all builders) around 2 hours.
There's likely some possible cleanup that can happen with these
configure options since it doesn't look like they've aged too too well,
but I'm hopeful that possible refactorings, if necessary, could be
deferred to future PRs.
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dist-arm-linux and dist-armhf-linux
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This commit disables building documentation on cross-compiled compilers, for
example ARM/MIPS/PowerPC/etc. Currently I believe we're not getting much use out
of these documentation artifacts and they often take 10-15 minutes total to
build as it requires building rustdoc/rustbook and then also generating all the
documentation, especially for the reference and the book itself.
In an effort to cut down on the amount of work that we're doing on dist CI
builders in light of recent timeouts this was some relatively low hanging fruit
to cut which in theory won't have much impact on the ecosystem in the hopes that
the documentation isn't used too heavily anyway.
While initial analysis in #48827 showed only shaving 5 minutes off local builds
the same 5 minute conclusion was drawn from #48826 which ended up having nearly
a half-hour impact on the bots. In that sense I'm hoping that we can land this
and test out what happens on CI to see how it affects timing.
Note that all tier 1 platforms, Windows, Mac, and Linux, will continue to
generate documentation.
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These arguments are passed to the relevant x.py invocation in all cases
anyway. As such, there is no need to separately configure them. x.py
will ignore the configuration when they are passed on the command line
anyway.
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On some systems, the bash command could be available in another
directory than /bin. As such, to offer an env shebang is more
convenient.
This make sense even for docker scripts, as you can use Docker
on FreeBSD or SmartOS for example.
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Newer versions of Docker have a `--init` argument which spawns an init process
in the container, which we should be able to use everywhere now.
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This commit updates the sccache binaries to fix a cache load failure seen
on #41926, fixed by mozilla/sccache#119
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Pulls in mozilla/sccache@ef0d77543 to fix #40240 again after the builds included
in #41447 forgot to include the mio fixed included in #41076.
Closes #40240
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Now that the final bug fixes have been merged into sccache we can start
leveraging sccache on the MSVC builders on AppVeyor instead of relying on the
ad-hoc caching strategy of trigger files and whatnot.
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This build is no longer a forked version with temporary bugfixes, everything
should be upstreamed!
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I've tracked down what I believe is the last spurious sccache failure on #40240
to behavior in mio (carllerche/mio#583), and this commit updates the binaries to
a version which has that fix incorporated.
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Previously we would use one builder on Travis to produce two sets of host
compilers for two different targets. Unfortunately though we've recently
increased how much we're building for each target so this is starting to take
unnecessarily long (#40804). This commit splits the dist builders in two by
ensuring that we only dist one target on each builder, which should take a much
shorter amount of time. This should also unblock other work such as landing the
RLS (#40584).
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