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Rewrite effects checking chapter
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use new terminology
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mention llvm 20 in example prs
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fix text
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- There is more than just target and stage
- There is only 3 stages, so don't mention them specially
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Retire the legacy `Makefile`-based `run-make` test infra
The final piece of [porting run-make tests to use Rust #121876](https://github.com/rust-lang/rust/issues/121876).
Closes #121876.
Closes #40713.
Closes #81791 (no longer using `wc`).
Closes #56475 (no longer a problem in current form of that test; we don't ignore the test on `aarch64-unknown-linux-gnu`).
### Summary
This PR removes the legacy `Makefile`-based `run-make` test infra which has served us well over the years. The legacy infra is no longer needed since we ported all of `Makefile`-based `run-make` tests to the new `rmake.rs` infra.
Additionally, this PR:
- Removes `tests/run-make/tools.mk` since no more `Makefile`-based tests remain.
- Updates `tests/run-make/README.md` and rustc-dev-guide docs to remove mention about `Makefile`-based `run-make` tests
- Update test suite requirements in rustc-dev-guide on Windows to no longer need MSYS2 (they should also now run successfully on native Windows MSVC).
- Update `triagebot.toml` to stop backlinking to #121876.
**Thanks to everyone who helped in this effort to modernize the `run-make` test infra and test suite!**
r? bootstrap
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Support raw-dylib link kind on ELF
raw-dylib is a link kind that allows rustc to link against a library without having any library files present.
This currently only exists on Windows. rustc will take all the symbols from raw-dylib link blocks and put them in an import library, where they can then be resolved by the linker.
While import libraries don't exist on ELF, it would still be convenient to have this same functionality. Not having the libraries present at build-time can be convenient for several reasons, especially cross-compilation. With raw-dylib, code linking against a library can be cross-compiled without needing to have these libraries available on the build machine. If the libc crate makes use of this, it would allow cross-compilation without having any libc available on the build machine. This is not yet possible with this implementation, at least against libc's like glibc that use symbol versioning. The raw-dylib kind could be extended with support for symbol versioning in the future.
This implementation is very experimental and I have not tested it very well. I have tested it for a toy example and the lz4-sys crate, where it was able to successfully link a binary despite not having a corresponding library at build-time.
I was inspired by Björn's comments in https://internals.rust-lang.org/t/bundle-zig-cc-in-rustup-by-default/22096/27
Tracking issue: #135694
r? bjorn3
try-job: aarch64-apple
try-job: x86_64-msvc-1
try-job: x86_64-msvc-2
try-job: test-various
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With the removal of `cfg(parallel_compiler)`, these are always shared
references and `std::sync::OnceLock`.
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Rewrite the `ci.py` script in Rust
It would seem that I would learn by now that any script written in Python will become unmaintainable sooner or later, but alas..
r? `@marcoieni`
try-job: aarch64-gnu
try-job: dist-x86_64-linux-alt
try-job: x86_64-msvc-ext2
Fixes: https://github.com/rust-lang/rust/issues/137013
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And remove outdated requirements to run `run-make` tests on Windows.
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raw-dylib is a link kind that allows rustc to link against a library
without having any library files present.
This currently only exists on Windows. rustc will take all the symbols
from raw-dylib link blocks and put them in an import library, where they
can then be resolved by the linker.
While import libraries don't exist on ELF, it would still be convenient
to have this same functionality. Not having the libraries present at
build-time can be convenient for several reasons, especially
cross-compilation. With raw-dylib, code linking against a library can be
cross-compiled without needing to have these libraries available on the
build machine. If the libc crate makes use of this, it would allow
cross-compilation without having any libc available on the build
machine. This is not yet possible with this implementation, at least
against libc's like glibc that use symbol versioning.
The raw-dylib kind could be extended with support for symbol versioning
in the future.
This implementation is very experimental and I have not tested it very
well. I have tested it for a toy example and the lz4-sys crate, where it
was able to successfully link a binary despite not having a
corresponding library at build-time.
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Co-authored-by: DianQK <dianqk@dianqk.net>
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stabilize stage management for rustc tools
https://github.com/rust-lang/rust/pull/135990 got out of control due to excessive complexity. This PR aims to achieve the same goal with a simpler approach, likely through multiple smaller PRs. I will keep the other one read-only and open as a reference for future work.
This work stabilizes the staging logic for `ToolRustc` programs, so you no longer need to handle build and target compilers separately in steps. Previously, most tools didn't do this correctly, which was causing the compiler to be built twice (e.g., `x test cargo --stage 1` would compile the stage 2 compiler before, but now it only compiles the stage 1 compiler).
I also tried to document how we should write `ToolRustc` steps as they are quite different and require more attention than other tools.
Next goal is to stabilize how stages are handled for the rustc itself. Currently, `x build --stage 1` builds the stage 1 compiler which is fine, but `x build compiler --stage 1` builds stage 2 compiler.
~~for now, r? ghost~~
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docs(dev): Update the feature-gate instructions
`features_untracked` was removed in #114723
features are now functions as of #132027
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Added project-specific Zed IDE settings
This repository currently has project-specific VS Code IDE settings in `.vscode` and `compiler/rustc_codegen_cranelift/.vscode`. Now there are equivalent project-specific Zed IDE settings alongside those.
This fixes `rust-analyzer` not being able to properly handle this project.
Note that:
1. The contents of `src/tools/rust-analyzer/.vscode` could not be translated to Zed, as they aren't basic IDE settings.
2. One of the VS Code settings in `.vscode` has no corresponding setting in Zed, and so this has been noted like this:
```json
"_settings_only_in_vs_code_not_yet_in_zed": {
"git.detectSubmodulesLimit": 20
},
```
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Signed-off-by: onur-ozkan <work@onurozkan.dev>
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This was changed in #132027
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This was removed in #114723
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bootstrap: add more tracing to compiler/std/llvm flows
- Add more tracing to compiler/std/llvm flows.
- Two drive-by nits:
1. Take `TargetSelection` by-value for `builder.is_builder_target()`. Noticed while adding tracing; follow-up to #136767.
2. Coalesce enzyme build logic into one branch.
- Document `COMPILER{,_FOR}` tracing targets for #96176.
- No functional changes.
### Testing
You can play with the tracing locally with:
```
$ BOOTSTRAP_TRACING=bootstrap=debug ./x build library
$ BOOTSTRAP_TRACING=bootstrap=trace ./x build library
$ BOOTSTRAP_TRACING=bootstrap=trace,COMPILER=trace,COMPILER_FOR=trace ./x build library
```
### Previews
```
$ BOOTSTRAP_TRACING=bootstrap=debug ./x build library
```
```
$ BOOTSTRAP_TRACING=bootstrap=trace,COMPILER=trace,COMPILER_FOR=trace ./x build library
```
r? ``@onur-ozkan`` (or reroll)
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The end goal is to eliminate `Map` altogether.
I added a `hir_` prefix to all of them, that seemed simplest. The
exceptions are `module_items` which became `hir_module_free_items` because
there was already a `hir_module_items`, and `items` which became
`hir_free_items` for consistency with `hir_module_free_items`.
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Run CI multiple times a day
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Start using latest release where -f checks all local links
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While there were comments indicating which nightly versions the examples
were tested with, those versions did not work for me: neither did the
examples compile, nor did they produce the expected output.
This commit fixes the compilation issues, using nightly-2025-02-13 for
all examples (previously the version differed between the examples) and,
in the case of the `rustc_driver` examples, also fixes the argument
passing: rustc ignores the first argument, so we need to pass the
filename as the second (otherwise we only get the help text printed).
Note that the `rustc-interface-getting-diagnostics.rs` example still
does not produce any output, which I assume is not how it is intended.
However, I don't know enough to fix it.
To avoid inconsistencies between the documented version and the actually
required version I've moved the version comment from the Markdown into
the Rust code where it hopefully won't be forgotten as easily.
Finally I've clarified in the examples' README that you also need to use
the proper nightly version when compiling the examples, not just when
running them.
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Add note for perf issue
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