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Bring back `x86_64-sun-solaris` target to rustup
Change #82216 removed now deprecated target `x86_64-sun-solaris` from CI, thus making it no longer possible to use `$ rustup target add x86_64-sun-solaris` to install given target (see #85098 for details). Since there should be a period of time between the deprecation and removal, this PR brings it back (while keeping the new one as well).
Please, correct me if I am wrong; my assumption that these Docker scripts are being used to build artifacts later used by `rustup` might be incorrect.
Closes #85098.
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Rollup of 4 pull requests
Successful merges:
- #84751 (str::is_char_boundary - slight optimization)
- #85185 (Generate not more docs than necessary)
- #85324 (Warn about unused `pub` fields in non-`pub` structs)
- #85329 (fix version_str comment)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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- Add rustfmt to `x.py check`
- Update Cargo.lock
- Remove rustfmt from the toolstate list
- Make rustfmt an in-tree tool
- Give an error on `x.py test rustfmt` if rustfmt fails to build or if tests fail
- Don't call `save_toolstate` when testing rustfmt
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The old version was renamed to
`expat-2.2.6-RENAMED-VULNERABLE-PLEASE-USE-2.3.0-INSTEAD`. :)
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This commit implements the idea of a new ABI for the WebAssembly target,
one called `"wasm"`. This ABI is entirely of my own invention
and has no current precedent, but I think that the addition of this ABI
might help solve a number of issues with the WebAssembly targets.
When `wasm32-unknown-unknown` was first added to Rust I naively
"implemented an abi" for the target. I then went to write `wasm-bindgen`
which accidentally relied on details of this ABI. Turns out the ABI
definition didn't match C, which is causing issues for C/Rust interop.
Currently the compiler has a "wasm32 bindgen compat" ABI which is the
original implementation I added, and it's purely there for, well,
`wasm-bindgen`.
Another issue with the WebAssembly target is that it's not clear to me
when and if the default C ABI will change to account for WebAssembly's
multi-value feature (a feature that allows functions to return multiple
values). Even if this does happen, though, it seems like the C ABI will
be guided based on the performance of WebAssembly code and will likely
not match even what the current wasm-bindgen-compat ABI is today. This
leaves a hole in Rust's expressivity in binding WebAssembly where given
a particular import type, Rust may not be able to import that signature
with an updated C ABI for multi-value.
To fix these issues I had the idea of a new ABI for WebAssembly, one
called `wasm`. The definition of this ABI is "what you write
maps straight to wasm". The goal here is that whatever you write down in
the parameter list or in the return values goes straight into the
function's signature in the WebAssembly file. This special ABI is for
intentionally matching the ABI of an imported function from the
environment or exporting a function with the right signature.
With the addition of a new ABI, this enables rustc to:
* Eventually remove the "wasm-bindgen compat hack". Once this
ABI is stable wasm-bindgen can switch to using it everywhere.
Afterwards the wasm32-unknown-unknown target can have its default ABI
updated to match C.
* Expose the ability to precisely match an ABI signature for a
WebAssembly function, regardless of what the C ABI that clang chooses
turns out to be.
* Continue to evolve the definition of the default C ABI to match what
clang does on all targets, since the purpose of that ABI will be
explicitly matching C rather than generating particular function
imports/exports.
Naturally this is implemented as an unstable feature initially, but it
would be nice for this to get stabilized (if it works) in the near-ish
future to remove the wasm32-unknown-unknown incompatibility with the C
ABI. Doing this, however, requires the feature to be on stable because
wasm-bindgen works with stable Rust.
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Simplify C compilation for Fortanix-SGX target
cc ``@raoulstrackx``
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Certain features of Linux (getauxval() and epoll_create1()) are only
available in android SDK/NDK levels 18 and 21 respectively. The 32bit
platform is currently on level 14 for compatibility with Android 4.0.
This patch adds SDK/NDK level 21 to the docker for 32 bit platforms,
while leaving the default setup at level 14.
With this done, projects such as `rustup` which rely on these dockers
can build with modern ecosystem crates such as tokio 1.0, by using
the level 21 toolchain, but those which do not need to switch will
be unaffected, since the level 14 toolchain remains available.
Signed-off-by: Daniel Silverstone <dsilvers@digital-scurf.org>
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Pin es-check version to prevent unrelated CI failures
es-check v5.2.1 causes a lot of unrelated CI failures on mingw-check, e.g. https://github.com/rust-lang/rust/pull/80723#issuecomment-790294196.
es-check v5.2.2 fixes it but let's pin its version to prevent further failures.
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Upgrade to LLVM 12
This implements the necessary adjustments to make rustc work with LLVM 12. I didn't encounter any major issues so far.
r? `@cuviper`
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musl-toolchain.sh is called with REPLACE_CC=1, so it will replace
the host compiler and the subsequent cmake build will fail because
it cannot find the openssl headers.
Move the cmake build earlier, so it happens before the compiler
is replaced.
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Python 2 is needed for Clang 10, Python 3 for LLVM 12.
The Python 2 dependency could be removed by upgrading to Clang 11,
but that causes linker errors of unclear origin.
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LLVM requires CMake 3.13.4, which is only available as of Ubuntu 20.04.
On images using an older version, build it manually.
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Closes #81514
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Rustdoc gui tests
This is a reopening of #70533.
For this first version, there will be no screenshot comparison. Also, a big change compared to the previous version: the tests are now hosted in the rust repository directly. Since there is no image, it's pretty lightweight to say the least.
So now, only remains the nodejs script to run the tests and the tests themselves. Just one thing is missing: where should I put the documentation for these tests? I'm not sure where would be the best place for that. The doc will contain important information like the documentation of the framework used and how to install it (`npm install browser-ui-test`, but still needs to be put somewhere so no one is lost).
We'd also need to install the package when running the CI too. For now, it runs as long as we have nodejs installed, but I think we don't it to run in all nodejs targets?
cc `@jyn514`
r? `@Mark-Simulacrum`
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This switches the wasm32 image, which is used to test
wasm32-unknown-emscripten to Ubuntu 20.04. While at it, enable
most of the excluded tests, as they seem to work fine with some
minor fixes.
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Update test-various to Ubuntu 20.04
The test command-setgroups.rs is adjusted to skip on musl, where `sysconf(_SC_NGROUPS_MAX)` always returns a dummy value of 32, even though the actual value is 65536. I'm not sure why this only became a problem now, as the information I found indicates that this value changed in kernel version 2.6.4, which is ages ago.
I'm a bit unsure whether this one will go through, because I locally also saw a failure in std-backtrace.rs which went away on subsequent runs, and also had port assignment failures, but I think those might be on my side. I'm kind of curious how the code in https://github.com/rust-lang/rust/blob/b122908617436af187252572ed5db96850551380/library/std/src/net/test.rs#L43-L56 is supposed to work, as the directory names it checks don't seem to appear anywhere else.
r? `@Mark-Simulacrum`
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Update armhf-gnu to Ubuntu 20.04
This requires updating the used Linux kernel to avoid an assembler
error, the used busybox version to avoid a linker error, the used
rootfs to match the host version and the qemu flags to work with
the newer version.
r? `@Mark-Simulacrum`
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This reverts commit cb6787ae82d388045cdf6b5dc73787d828d91feb, reversing
changes made to 0248c6f178ab3a4d2ec702b7d418ff8375ab0515.
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Update dist-various to Ubuntu 20.04
This updates the dist-various-1 and dist-various-2 images to Ubuntu
20.04. This requires some adjustments:
* `DEBIAN_FRONTEND=noninteractive` required for apt install.
* `team-gcc-argm-embedded` PPA does not support focal. However,
we can simply use the distro-provided `gcc-arm-none-eabi`. Per
the comment, the PPA was only used to get a newer version.
* rumprun has to be updated to avoid a linker error.
* We need to build rumrun with `NOGCCERROR`, which disables use
of `-Werror` and allows building with a newer compiler.
* We need to install `libtinfo5`, which appears to be a dependency
of the clang used during the fuchsia build.
* We need to switch to `g++-8` rather than `g++-7`, as at least
`g++-7-arm-linux-gnueabi` is not available on focal.
* We need to upgrade to GCC 6.5 for the Solaris build, as GCC 6.4
does not support the newer libisl version.
r? `@Mark-Simulacrum`
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This requires updating the used Linux kernel to avoid an assembler
error, the used busybox version to avoid a linker error, the used
rootfs to match the host version and the qemu flags to work with
the newer version.
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The test command-setgroups.rs is adjusted to skip on musl, where
`sysconf(_SC_NGROUPS_MAX)` always returns a dummy value of 32,
even though the actual value is 65536. I'm not sure why this becomes
relevant only now though, as this was apparently the case since
kernel 2.6.4.
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This updates the dist-various-1 and dist-various-2 images to Ubuntu
20.04. This requires some adjustments:
* `DEBIAN_FRONTEND=noninteractive` required for apt install.
* `team-gcc-argm-embedded` PPA does not support focal. However,
we can simply use the distro-provided `gcc-arm-none-eabi`. Per
the comment, the PPA was only used to get a newer version.
* rumprun has to be updated to avoid a linker error.
* We need to build rumrun with `NOGCCERROR`, which disables use
of `-Werror` and allows building with a newer compiler.
* We need to install `libtinfo5`, which appears to be a dependency
of the clang used during the fuchsia build.
* We need to switch to `g++-8` rather than `g++-7`, as at least
`g++-7-arm-linux-gnueabi` is not available on focal.
* We need to upgrade to GCC 6.5 for the Solaris build, as GCC 6.4
does not support the newer libisl version.
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LLVM 12 no longer builds with Python 2, so install Python 3 in
preparatin.
However, Clang 10 does not build with Python 3, so we need update
to Clang 11 as well, which supports both.
Unfortunately, doing so results in errors while linking the
libLLVM.so into other binaries:
> __morestack: invalid needed version 2
This is fixed by using LLD instead. Possibly this is due to a binutils
linker bug, but updating to the latest binutils version does not fix
it.
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This brings in an implementation of `current_dir` and `set_current_dir`
(emulation in `wasi-libc`) as well as an updated version of finding
relative paths. This also additionally updates clang to the latest
release to build wasi-libc with.
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This implements support for applying PGO to the rustc compilation step (not
standard library or any tooling, including rustdoc). Expanding PGO to more tools
is not terribly difficult but will involve more work and greater CI time
commitment.
For the same reason of avoiding greater time commitment, this currently avoids
implementing for platforms outside of x86_64-unknown-linux-gnu, though in
practice it should be quite simple to extend over time to more platforms. The
initial implementation is intentionally minimal here to avoid too much work
investment before we start seeing wins for a subset of Rust users.
The choice of workloads to profile here is somewhat arbitrary, but the general
rationale was to aim for a small set that largely avoided time regressions on
perf.rust-lang.org's full suite of crates. The set chosen is libcore, cargo (and
its dependencies), and a few ad-hoc stress tests from perf.rlo. The stress tests
are arguably the most controversial, but they benefit those cases (avoiding
regressions) and do not really remove wins from other benchmarks.
The primary next step after this PR lands is to implement support for PGO in
LLVM. It is unclear whether we can afford a full LLVM rebuild in CI, though, so
the approach taken there may need to be more staggered. rustc-only PGO seems
well affordable on linux at least, giving us up to 20% wall time wins on some
crates for 15 minutes of extra CI time (1 hour up from 45 minutes).
The PGO data is uploaded to allow others to reuse it if attempting to reproduce
the CI build or potentially, in the future, on other platforms where an
off-by-one strategy is used for dist builds at minimal performance cost.
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This commit switches the x86_64-gnu-nopt builder to use Ubuntu 20.04,
which contains a more recent gdb version than Ubuntu 16.04 (newer gdb
versions fix a bug that Split DWARF can trigger, see
rust-lang/rust#77177 for motivation). x86_64-gnu-nopt is chosen because
it runs compare modes, which is how Split DWARF testing is implemented
in rust-lang/rust#77177.
Signed-off-by: David Wood <david@davidtw.co>
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when compiling rust programs
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It seems that by default the 32-bit headers are not actually installed
when installing development tooling. As we're using gcc headers,
we need to install them as an extra package.
See for reference:
- https://stackoverflow.com/a/54082790
- https://askubuntu.com/a/106092
Also removed the now unused arm tooling
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Now with LLVM 9 being the minimum supported version, we can
finally remove the hacks in the dockerfile.
This wasn't in the main PR bumping the version as I didn't quite
understand what's going on and needed here.
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apparently llvm-8-tools already had llvm-8-dev as a dependency
which was removed in llvm-9-tools, so we need to explicitly pull
llvm-9-dev to make a build
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This bumps the minimal tested llvm version to 9.
This should enable supporting newer LLVM features (and CPU extensions).
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Demote i686-unknown-freebsd to tier 2 compiler target
While technically the `i686-unknown-freebsd` target has been a tier 2 development platform for a long time, with full toolchain tarballs available on static.rust-lang.org, due to a bug in the manifest generation the target was never available for download through rustup.
The infrastructure team privately inquired the FreeBSD package maintainers, and they weren't relying on those tarballs either, so it's a fair assumption to say practically nobody is using those tarballs.
This PR then removes the CI builder that produces full tarballs for the target, and moves the compilation of `rust-std` for the target in `dist-various-2`. The `x86_64-unknown-freebsd` target is *not* affected.
cc `@rust-lang/infra` `@rust-lang/compiler` `@rust-lang/release`
r? `@Mark-Simulacrum`
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