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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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LLVM 8 was released on March 20, 2019, over a year ago.
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ci: run mir-opt tests on PR CI also as 32-bit (for `EMIT_MIR_FOR_EACH_BIT_WIDTH`).
Background: #69916 and [`src/test/mir-opt/README.md`](https://github.com/rust-lang/rust/blob/master/src/test/mir-opt/README.md):
> By default 32 bit and 64 bit targets use the same dump files, which can be problematic in the
presence of pointers in constants or other bit width dependent things. In that case you can add
>
> ```
> // EMIT_MIR_FOR_EACH_BIT_WIDTH
> ```
>
> to your test, causing separate files to be generated for 32bit and 64bit systems.
However, if you change the output of such a test (intentionally or not), or if you add a test and it varies between 32-bit and 64-bit platforms, you have to run this command (for a x64 linux host):
`./x.py test --stage 1 --target x86_64-unknown-linux-gnu --target i686-unknown-linux-gnu --bless src/test/mir-opt`
Otherwise, bors trying to merge the PR will fail, since we test 32-bit targets there.
But we don't on PR CI, which means there's no way the PR author would know (unless they were burnt by this already and know what to look for).
This PR resolves that by running `mir-opt` tests for ~~`i686-unknown-linux-gnu`~~, on PR CI.
**EDIT**: switched to `armv5te-unknown-linux-gnueabi` to work around LLVM 7 crashes (see https://github.com/rust-lang/compiler-builtins/pull/311#issuecomment-612270089), found during testing.
cc @rust-lang/wg-mir-opt @rust-lang/infra
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`EMIT_MIR_FOR_EACH_BIT_WIDTH`).
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Stop explicitly depending on python 2
This PR revises our previous policy of officially only supporting and testing with python 2 in the CI environment to instead test with python 3. It also changes the defaults to python 3 in our various scripts (usually, by way of `python` rather than `python3` to preserve compatibility with systems that do not have a python 3 available).
The effect of this is that we expect all new patches to support python 3 (and will test as such). We explicitly also expect that patches support python 2.7 as well -- and test as such, though only on one builder. This is intended as a temporary, though likely long-lived, measure to preserve compatibility while looking towards the future which is likely to be a python 3 only world. We do not at this point set a timeline for when we'll drop support for python 2.7; it's plausible that this is months or years into the future, depending on how quickly the ecosystem drops support and how painful it is for us to maintain that support over time.
Closes #65063 (as far as I can tell; please file explicit and separate issues or PRs if not).
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Enable rust-lld on dist-x86_64-musl
Add rust-lld to rustup llvm-tools-preview on nightly for musl
I am using a musl distro on my workstation, with `RUSTFLAGS="-C target-feature=-crt-static"` this works fine. I know that `x86_64-unknown-linux-musl` was originally only meant as a target and not as a host. But most problems have been fixed, and I have fewer problems with `unknown` (rustup) than when I am using `x86_64-alpine-linux-musl` (rust installed by the distro). The only thing I am missing is rust-lld in llvm-tools-preview on nightly.
I needed rust-lld for a wasm tutorial. I built rust-lld and tested it with that tutorial, and it worked well. I asked [here](https://users.rust-lang.org/t/enable-rust-lld-on-x86-64-unknown-linux-musl/39851) where to request to enable lld and ended up doing this PR.
I compared llvm-tools-preview `nightly-x86_64-unknown-linux-musl` and `nightly-x86_64-unknown-linux-gnu`: only rust-lld is missing in musl.
I tested the change using:
```bash
./src/ci/docker/run.sh dist-x86_64-musl
```
And I checked that the resulting rust-lld binary runs.
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Move rustc-guide submodule to rustc-dev-guide
r? @pietroalbini
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AArch64 bare-metal targets: Build rust-std
This PR complements https://github.com/rust-lang/rust/pull/68253
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Add rust-lld to llvm-tools-preview on nightly for musl
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dist-arm-linux and dist-armhf-linux
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Update the bundled wasi-libc with libstd
Brings in WebAssembly/wasi-libc#184 which can help standalone programs
with environment variables!
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Build dist-android with --enable-profiler
This will make the runtime available to enable PGO for Rust code in Firefox on Android.
r? @michaelwoerister
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Brings in WebAssembly/wasi-libc#184 which can help standalone programs
with environment variables!
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Move tidy check to mingw-check
Fixes #69613
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This should allow the `rustdoc-js` and `rustdoc-js-std` test suites to run automatically on PRs.
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This patch enables building of rust-std for the aarch64 bare-metal targets.
For the compiler intrinsics, it fetches the AArch64 bare-metal target
(aarch64-none-elf) GCC for the A-profile provided by ARM itself from
https://developer.arm.com/tools-and-software/open-source-software/developer-tools/gnu-toolchain/gnu-a/downloads
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it needs some upstream changes in the build script of the compiler-builtins
crate
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Distribution CI for riscv64gc-unknown-linux-gnu
This modifies `dist-various-1` to build the standard library for RISC-V GNU/Linux.
r? @alexcrichton
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-> `rustc --target armv7-none-eabi` will work
also build rust-std (rustup) components for them
-> `rustup target add armv7-none-eabi` will work
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ci: bump ubuntu 19.04 images to 19.10
Ubuntu 19.04 goes EOL this month.
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Ubuntu 19.04 goes EOL this month.
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I spent a while debugging a strage linker error about an outdated `glibc` version, only to discover that it was caused by a stale `obj` directory. It wasn't obviously to be that using the same obj dir with multiple Docker images (for the same target triple) could be a problem.
This commit adds a note to the README, which should hopefully be helpful to anyone else who runs into this issue.
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This commit updates the `wasi-libc` repository used to build the
wasm32-wasi target's libstd to ensure that both libstd and libc are
using the same wasi snapshot version.
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LLVM 7 is over a year old, which should be plenty for compatibility. The
last LLVM 6 holdout was llvm-emscripten, which went away in #65501.
I've also included a fix for LLVM 8 lacking `MemorySanitizerOptions`,
which was broken by #66522.
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Misc CI improvements
This PR contains some misc improvements to our CI configuration:
* The environment variables for MinGW builders were greatly simplified, with just `CUSTOM_MINGW=1` to tell the install scripts to install the vendored copy. All the others (`MINGW_URL`, `MINGW_DIR`, `MINGW_ARCHIVE` and `MSYS_BITS`) are detected either from the builder name or the environment.
* Collecting CPU stats and running the build were moved into scripts.
* Toolstate scripts validation was previously a separate step, ran just when `IMAGE=mingw-check`. This moves the validation code inside the actual image.
* Vendored copies are now fetched from https://ci-mirrors.rust-lang.org instead of directly from the bucket.
r? @alexcrichton
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CentOS 5 only supports SSLv3 without SNI, and to get newer protocols
working we need to download and compile OpenSSL and cURL from our
mirror. Because of that, we can't use the CDN, as CloudFront requires
TLSv1 with SNI.
This commit changes the dist-x86_64-linux image to bypass the CDN for
OpenSSL and cURL.
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The task was already run just there, so this cleans things up.
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This also ensure that we're using the same clang version for all our
major platforms instead of 8.0 on Linux and 7.0 on OSX/Windows.
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This updates the libc that the `wasm32-wasi` target links against to the
latest revision, mostly just bringing in minor bug fixes and minor wasm
size improvements.
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Upload toolstates.json to rust-lang-ci2
This PR does two things:
* Following up with https://github.com/rust-lang/rust/pull/65202, it migrates deploying artifacts to CI in a script. Both uploading release artifacts and CPU stats were merged into the same script, designing it to be easily extended.
* Uploads the toolstate JSON to `rust-lang-ci2` along with the release artifacts, both for Linux and Windows. This is needed because @RalfJung wants to stop shipping MIRI when its tests are failing, and the toolstate repo doesn't have entries for each commit. Having the toolstate data (just for that specific commit) on `rust-lang-ci2` will simplify the code a lot.
r? @alexcrichton
cc @RalfJung
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Before this commit toolstates.json was stored in /tmp and it wasn't
mounted outside the build container. That caused uploading the file in
the upload-artifacts task to fail, as the file was missing on the host.
Mounting /tmp/toolstates.json alone is not the best approach: if the
file is missing when the container is started the Docker engine will
create a *directory* named /tmp/toolstates.json.
The Docker issue could be solved by pre-creating an empty file named
/tmp/toolstates.json, but doing that could cause problems if bootstrap
fails to generate the file and the toolstate scripts receive an empty
JSON.
The approach I took in this commit is to instead mount a /tmp/toolstate
directory inside Docker, and create the toolstates.json file in it. That
also required a small bootstrap change to ensure the directory is
created if it's missing.
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With #65251 landed there's no need to build two LLVM backends and ship
them with rustc, every target we have now uses the same LLVM backend!
This removes the `src/llvm-emscripten` submodule and additionally
removes all support from rustbuild for building the emscripten LLVM
backend. Multiple codegen backend support is left in place for now, and
this is intended to be an easy 10-15 minute win on CI times by avoiding
having to build LLVM twice.
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Upgrade GCC to 8.3.0, glibc to 1.17.0 and crosstool-ng to 1.24.0 for dist-armv7-linux
#62896 was caused by the usage of the GCC 5.2.0 toolchain, which was released back in 2015 and may have bugs affecting LLVM 9.
This PR upgrade GCC to 8.3.0 from 5.2.0, glibc from 1.16.0 to 1.17.0 and crosstool-ng to 1.24.0 only for dist-armv7-linux.
Fixes #62896
r? @alexcrichton
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