Bootstrap: Try renaming the file if removing fails
Second attempt at working around https://github.com/rust-lang/rust/issues/127126
If we can't remove the file, then try renaming it. This will leave the destination path free to use.
try-job: x86_64-msvc-ext
The CDN has been down for a few hours. Switch to an alternative for the
time being so we can unblock CI.
It appears that the CDN is quite a bit faster, so we will likely want to
switch back when available.
improve the way bootstrap handles rustlib components
When CI rustc is enabled, bootstrap tries to symlink the rust source (project root) into target sysroot right before copying it from the CI rustc's sysroot. This becomes a problem in CI builders (which we currently don't see because they don't use CI rustc) because the copying part will fail as [they run on read-only mode](ef3d6fd700/src/ci/docker/run.sh (L233)).
This change fixes the problem by copying `rustc-src` from the CI rustc sysroot and only symlinking `rustc-src` from the rust source when download-rustc is not enabled.
r? ``@Kobzol`` (we talked about this already on Zulip, he knows the context)
Blocker for https://github.com/rust-lang/rust/pull/122709
Migrate `volatile-intrinsics`, `weird-output-filenames`, `wasm-override-linker`, `wasm-exceptions-nostd` to `rmake`
Also refactors `wasm-abi` and `compressed-debuginfo`.
Part of #121876.
r? ``@jieyouxu``
try-job: x86_64-gnu-debug
try-job: dist-various-2
When CI rustc is enabled, bootstrap tries to symlink the rust source (project root)
into target sysroot right before copying it from the CI rustc's sysroot. This becomes
a problem in CI builders (which we currently don't see because they don't use CI rustc)
because the copying part will fail as they run on read-only mode.
This change fixes the problem by copying `rustc-src` from the CI rustc sysroot and only symlinking
`rustc-src` from the rust source when download-rustc is not enabled.
Signed-off-by: onur-ozkan <work@onurozkan.dev>
Fix x86_64 code being produced for bare-metal LoongArch targets' `compiler_builtins`
Formerly the `loongarch*-*-none*` targets were added to the `dist-various-2` CI job, but no corresponding toolchain was added along with them. This meant the `compiler_builtins` for the targets were built with the host toolchain.
As the other `dist-various` toolchains are mostly pre-built so far, to avoid burdening them with crosstool-ng builds, simply move the two bare-metal LoongArch targets to the `dist-loongarch64-linux` job which has a ready-to-use LoongArch toolchain. With the proper CFLAGS applied it is possible to build artifacts suitable for bare-metal. I verified that the `compiler_builtins` objects are now correctly produced regarding architecture and ABI, with the changes here applied.
Fixes#125908.
cc ``@heiher``
try-job: dist-loongarch64-linux
try-job: dist-various-2
Cleanup bootstrap check-cfg
This PR cleanup many custom `check-cfg` in bootstrap that have been accumulated over the years.
As well as updating some outdated comments.
Update the LoongArch target documentation
The docs for the LoongArch targets are a bit dated since their introduction, and the prose has some room for improvement as well. Streamline a bit, referring to the neighboring targets' docs, and provide up-to-date information as much as I can come up with.
cc fellow target maintainer `@heiher` for review of target-specific bits
Remove the `box_pointers` lint.
As the comment says, this lint "is mostly historical, and not particularly useful". It's not worth keeping it around.
r? ``@estebank``
Formerly the `loongarch*-*-none*` targets were added to the
`dist-various-2` CI job, but no corresponding toolchain was added along
with them. This meant the `compiler_builtins` for the targets were built
with the host toolchain.
As the other `dist-various` toolchains are mostly pre-built so far, to
avoid burdening them with crosstool-ng builds, simply move the two
bare-metal LoongArch targets to the `dist-loongarch64-linux` job which
has a ready-to-use LoongArch toolchain. With the proper CFLAGS applied
it is possible to build artifacts suitable for bare-metal. I verified
that the `compiler_builtins` objects are now correctly produced
regarding architecture and ABI, with the changes here applied.
Fixes#125908.
cc @heiher
try-job: dist-loongarch64-linux
try-job: dist-various-2
Rollup of 9 pull requests
Successful merges:
- #123237 (Various rustc_codegen_ssa cleanups)
- #126960 (Improve error message in tidy)
- #127002 (Implement `x perf` as a separate tool)
- #127081 (Add a run-make test that LLD is not being used by default on the x64 beta/stable channel)
- #127106 (Improve unsafe extern blocks diagnostics)
- #127110 (Fix a error suggestion for E0121 when using placeholder _ as return types on function signature.)
- #127114 (fix: prefer `(*p).clone` to `p.clone` if the `p` is a raw pointer)
- #127118 (Show `used attribute`'s kind for user when find it isn't applied to a `static` variable.)
- #127122 (Remove uneccessary condition in `div_ceil`)
r? `@ghost`
`@rustbot` modify labels: rollup
Implement `x perf` as a separate tool
Continues work from https://github.com/rust-lang/rust/pull/126318, adds a CLI for running `rustc-perf` profiling commands through a new `rustc-perf-wrapper` tool. The CLI is in a separate tool to enable experimentation outside of `bootstrap`.
This is probably most of what we can do so far, I'll add support for benchmarking once `rustc-perf` gets a terminal output for comparing benchmark results.
r? ``@onur-ozkan``
Improve error message in tidy
The old error message was wrong (there is no `venv` Python package on PyPi), and we did not specify the correct Python path in the error message.
Implement new effects desugaring
cc `@rust-lang/project-const-traits.` Will write down notes once I have finished.
* [x] See if we want `T: Tr` to desugar into `T: Tr, T::Effects: Compat<true>`
* [x] Fix ICEs on `type Assoc: ~const Tr` and `type Assoc<T: ~const Tr>`
* [ ] add types and traits to minicore test
* [ ] update rustc-dev-guide
Fixes#119717Fixes#123664Fixes#124857Fixes#126148
Bootstrap: Don't get output if `lldb --version` errors
fixes#126892
`Command` can error in two ways: the OS can fail to run the binary at all or else the binary can return an error exit code. Unfortunately the distinction between the two is not clear cut. The OS may succeed in starting the binary but it may still error before `main` (e.g. if a necessary library fails to load) and this will be reported via the exit code.
Fortunately this case is simpler. We can assume that `lldb --version` will only ever error if there's a startup issue of some kind. so both kinds of errors are caused by the OS. Thus it's safe for us to treat them equally for the sake of this specific check.
Migrate `run-make/override-aliased-flags` to `rmake.rs`
Part of https://github.com/rust-lang/rust/issues/121876.
I voluntarily didn't use the helper methods to make it obvious what's tested.
r? `@jieyouxu`
Migrate `pdb-alt-path`, `mismatching-target-triples` and `mingw-export-call-convention` `run-make` tests to rmake
Part of #121876 and the associated [Google Summer of Code project](https://blog.rust-lang.org/2024/05/01/gsoc-2024-selected-projects.html).
Needs MSVC try jobs.
try-job: x86_64-mingw
try-job: x86_64-msvc
Rollup of 9 pull requests
Successful merges:
- #126822 (Bootstrap command refactoring: port more `Command` usages to `BootstrapCmd` (step 2))
- #126835 (Simplifications in match lowering)
- #126953 (std: separate TLS key creation from TLS access)
- #127045 (Rename `super_predicates_of` and similar queries to `explicit_*` to note that they're not elaborated)
- #127075 (rustc_data_structures: Explicitly check for 64-bit atomics support)
- #127101 (remove redundant match statement from dataflow const prop)
- #127102 (Rename fuchsia builder and bump Fuchsia)
- #127103 (Move binder and polarity parsing into `parse_generic_ty_bound`)
- #127108 (unify `dylib` and `bin_helpers` and create `shared_helpers::parse_value_from_args`)
r? `@ghost`
`@rustbot` modify labels: rollup
unify `dylib` and `bin_helpers` and create `shared_helpers::parse_value_from_args`
`dylib` and `bin_helpers` were already used in similar logic. This PR unifies them under a `shared_helpers` module that is utilized by both the bootstrap library and shims. Additionally, created `parse_value_from_args` with a unit test. This helps avoid code duplication in shims and can also be used in the bootstrap library if needed (which is the case in one of `@Kobzol's` tasks).
r? `@Kobzol`
