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The format of the tarballs produced by CI is roughly the following:
{component}-{release}-{target}.{ext}
While on the beta and nightly channels `{release}` is just the channel
name, on the stable channel is either the Rust version or the version of
the component we're shipping:
cargo-0.47.0-x86_64-unknown-linux-gnu.tar.xz
clippy-0.0.212-x86_64-unknown-linux-gnu.tar.xz
llvm-tools-1.46.0-x86_64-unknown-linux-gnu.tar.xz
miri-0.1.0-x86_64-unknown-linux-gnu.tar.xz
rls-1.41.0-x86_64-unknown-linux-gnu.tar.xz
rust-1.46.0-x86_64-unknown-linux-gnu.tar.xz
...
This makes it really hard to get the package URL without having access
to the manifest (and there is no manifest on ci-artifacts.rlo), as there
is no consistent version number to use.
This commit addresses the problem by always using the Rust version
number as `{release}` for the stable channel, regardless of the version
number of the component we're shipping. I chose that instead of "stable"
to avoid breaking the URL scheme *that* much.
Rustup should not be affected by this change, as it fetches the URLs
from the manifest. Unfortunately we don't have a way to test other
clients before making a stable release, as this change only affects the
stable channel.
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- Suggest `x.py setup` if config.toml doesn't exist yet (twice, once
before and once after the build)
- Prompt for a profile if not given on the command line
- Print the configuration file that will be used
- Print helpful starting commands after setup
- Link to the dev-guide after finishing
- Note that distro maintainers will see the changelog warning
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The Rust version number is currently embedded in bootstrap's source
code, which makes it hard to update it automatically or access it
outside of ./x.py (as you'd have to parse the source code).
This commit moves the version number to a standalone plaintext file,
which makes accessing or updating it trivial.
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Add a dedicated debug-logging option to config.toml
`@Mark-Simulacrum` and I were talking in zulip and we found that turning on debug/trace logging in rustc is fairly confusing, as it effectively depends on debug-assertions and is not documented as such. `@Mark-Simulacrum` mentioned that we should probably have a separate option for logging anyways.
this diff adds that, having the option follow debug-assertions (so everyone's existing config.toml should be fine) and if the option is false
to test I ran ./x.py test <something> twice, once with `debug-logging = false` and once with `debug-logging = true` and made sure i only saw trace's when it was true
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rustbuild: Build tests with LLD if `use-lld = true` was passed
Addresses https://github.com/rust-lang/rust/pull/76127#discussion_r479932392.
Our test suite is generally ready to run with an explicitly specified linker (https://github.com/rust-lang/rust/pull/45191),
so LLD specified with `use-lld = true` works as well.
Only 4 tests fail (on `x86_64-pc-windows-msvc`):
```
ui/panic-runtime/lto-unwind.rs
run-make-fulldeps/debug-assertions
run-make-fulldeps/foreign-exceptions
run-make-fulldeps/test-harness
```
All of them are legitimate issues with LLD (or at least with combination Rust+LLD) and manifest in segfaults on access to TLS (https://github.com/rust-lang/rust/pull/76127#issuecomment-683473325). UPD: These issues are caused by https://github.com/rust-lang/rust/issues/72145 and appear because I had `-Ctarget-cpu=native` set.
UPD: Further commits build tests with LLD for non-MSVC targets and propagate LLD to more places when `use-lld` is enabled.
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rustbuild: Remove `Mode::Codegen`
It's no longer used.
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This is generally a good idea, and will help with being able to build bootstrap
without Python over time as it means we can "just" build with cargo +beta build
rather than needing the user to set environment variables. This is a minor step,
but a necessary one on that road.
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It isn't practical to determine whether we'll build LLVM very early in the
pipeline, so move the ninja checking to a dynamic check.
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Fixes for VxWorks
r? @alexcrichton
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fix building errors
use wr-c++ as linker
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clippy::print_literal
clippy::clone_on_copy
clippy::single_char_pattern
clippy::into_iter_on_ref
clippy::match_like_matches_macro
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`rustc` allows passing in predefined target triples as well as JSON
target specification files. This change allows bootstrap to have the
first inkling about those differences. This allows building a
cross-compiler for an out-of-tree architecture (even though that
compiler won't work for other reasons).
Even if no one ever uses this functionality, I think the newtype
around the `Interned<String>` improves the readability of the code.
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This commit replaces the use of `trim_start_matches`
because in `rustc -Vv` output there are no lines
starting with multiple "release:".
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The current plan is that submodule tracks the `release` branch of
rust-analyzer, which is updated once a week.
rust-analyzer is a workspace (with a virtual manifest), the actual
binary is provide by `crates/rust-analyzer` package.
Note that we intentionally don't add rust-analyzer to `Kind::Test`,
for two reasons.
*First*, at the moment rust-analyzer's test suite does a couple of
things which might not work in the context of rust repository. For
example, it shells out directly to `rustup` and `rustfmt`. So, making
this work requires non-trivial efforts.
*Second*, it seems unlikely that running tests in rust-lang/rust repo
would provide any additional guarantees. rust-analyzer builds with
stable and does not depend on the specifics of the compiler, so
changes to compiler can't break ra, unless they break stability
guarantee. Additionally, rust-analyzer itself is gated on bors, so we
are pretty confident that test suite passes.
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bootstrap: Configurable musl libdir
Make it possible to customize the location of musl libdir using
musl-libdir in config.toml, e.g., to use lib64 instead of lib.
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Speed up bootstrap a little.
The bootstrap script was calling `cargo metadata` 3 times (or 6 with `-v`). This is a very expensive operation, and this attempts to avoid the extra calls. On my system, a simple command like `./x.py test -h -v` goes from about 3 seconds to 0.4.
An overview of the changes:
- Call `cargo metadata` only once with `--no-deps`. Optional dependencies are filtered in `in_tree_crates` (handling `profiler_builtins` and `rustc_codegen_llvm` which are driven by the config).
- Remove a duplicate call to `metadata::build` when using `-v`. I'm not sure why it was there, it looks like a mistake or vestigial from previous behavior.
- Remove check for `_shim`, I believe all the `_shim` crates are now gone.
- Remove check for `rustc_` and `*san` for `test::Crate::should_run`, these are no longer dependencies in the `test` tree.
- Use relative paths in `./x.py test -h -v` output.
- Some code cleanup (remove unnecessary `find_compiler_crates`, etc.).
- Show suite paths (`src/test/ui/...`) in `./x.py test -h -v` output.
- Some doc comments.
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Make it possible to customize the location of musl libdir using
musl-libdir in config.toml, e.g., to use lib64 instead of lib.
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This should run much faster.
There are also some drive-by cleanups here to try to simplify things.
Also, the paths for in-tree crates are now displayed as relative
in `x.py test -h -v`.
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We were computing a merge-base between the remote beta and master
branches, but this was giving incorrect answers for the first beta if
the remote hadn't been pushed yet. For instance, `1.45.0-beta.3359`
corresponds to the number of merges since the 1.44 beta, but we really
want just `.1` for the sole 1.45 beta promotion merge.
We don't really need to query the remote beta at all -- `master..HEAD`
suffices if we assume that we're on the intended beta branch already.
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it's not been built since a long time ago
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Remove unused feature gates
I think many of the remaining unstable things can be easily be replaced with stable things. I have kept the `#![feature(nll)]` even though it is only necessary in `libstd`, to make regressions of it harder.
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Add an option to use LLD to link the compiler on Windows platforms
Based on https://github.com/rust-lang/rust/pull/68609.
Using LLD is good way to improve compile times on Windows since `link.exe` is quite slow. The time for `x.py build --stage 1 src/libtest` goes from 0:12:00 to 0:08:29. Compile time for `rustc_driver` goes from 226.34s to 18.5s. `rustc_macros` goes from 28.69s to 7.7s. The size of `rustc_driver` is also reduced from 83.3 MB to 78.7 MB.
r? @Mark-Simulacrum
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rustc: Link LLVM directly into rustc again (take two)
This is a continuation of PR https://github.com/rust-lang/rust/pull/65703
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Bootstrap: change logic for choosing linker and rpath
This is a follow-up from #66957 and #67023. Apparently there was one more location with a hard-coded list of targets to influence linking.
I've filed #67171 to track this madness.
r? @alexcrichton
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This commit builds on #65501 continue to simplify the build system and
compiler now that we no longer have multiple LLVM backends to ship by
default. Here this switches the compiler back to what it once was long
long ago, which is linking LLVM directly to the compiler rather than
dynamically loading it at runtime. The `codegen-backends` directory of
the sysroot no longer exists and all relevant support in the build
system is removed. Note that `rustc` still supports a dynamically loaded
codegen backend as it did previously, it just no longer supports
dynamically loaded codegen backends in its own sysroot.
Additionally as part of this the `librustc_codegen_llvm` crate now once
again explicitly depends on all of its crates instead of implicitly
loading them through the sysroot. This involved filling out its
`Cargo.toml` and deleting all the now-unnecessary `extern crate`
annotations in the header of the crate. (this in turn required adding a
number of imports for names of macros too).
The end results of this change are:
* Rustbuild's build process for the compiler as all the "oh don't forget
the codegen backend" checks can be easily removed.
* Building `rustc_codegen_llvm` is much simpler since it's simply
another compiler crate.
* Managing the dependencies of `rustc_codegen_llvm` is much simpler since
it's "just another `Cargo.toml` to edit"
* The build process should be a smidge faster because there's more
parallelism in the main rustc build step rather than splitting
`librustc_codegen_llvm` out to its own step.
* The compiler is expected to be slightly faster by default because the
codegen backend does not need to be dynamically loaded.
* Disabling LLVM as part of rustbuild is still supported, supporting
multiple codegen backends is still supported, and dynamic loading of a
codegen backend is still supported.
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This is not yet actually used by CI, but implements the logic for
checking that tools are properly building on beta/stable and during beta
cutoff week.
This attempts to mirror the checking functionality in
src/ci/docker/x86_64-gnu-tools/checktools.sh, and called scripts. It
does not attempt to run the relevant steps (that functionality was
originally desired to be moved into bootstrap as well, but doing so
proved more difficult than expected).
This is intended as a way to centralize and make clearer the logic
involved in toolstate checking. In particular, the previous logic was
spread across numerous python and shell scripts in such a way that made
interpretation quite difficult.
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