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Use `YYYY-MM-DDTHH_MM_SS` as datetime format for ICE dump files
Windows paths do not support `:`, so use a datetime format in ICE dump paths that Windows will accept.
CC #116809, fix #115180.
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Windows paths do not support `:`, so use a datetime format in ICE dump
paths that Windows will accept.
Fix #116809, fix #115180.
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Make `handle_options` public again.
r? ``@compiler-errors``
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It contains a single message that (a) doesn't contain any natural
language, and (b) is only used in tests.
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Use tidy to enforce alphabetical dependency ordering
I get annoyed when dependencies in `Cargo.toml` files are not in alphabetical order. The [style guide](https://github.com/rust-lang/rust/blob/master/src/doc/style-guide/src/cargo.md) agrees with me.
There are ongoing efforts to provide linting/formatting of `Cargo.toml` files, e.g. https://github.com/rust-lang/rustfmt/pull/5240, https://crates.io/crates/cargo-toml-lint, and https://github.com/TimonPost/cargo-toml-format. But it's far from clear what's the right approach.
So this PR does something very simple: it uses the order checking already present in tidy. This allows incremental application of ordering, starting right now, and avoiding the need for any kind of all-at-once conversion.
If we do end up using some more comprehensive `Cargo.toml` linting/formatting solution in the future, the `tidy-alphabetical` lines will be easy to remove.
r? `@wesleywiser`
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Add `Config::hash_untracked_state` callback
For context, I'm looking to use [late module passes](https://doc.rust-lang.org/nightly/nightly-rustc/rustc_lint/context/struct.LintStore.html#structfield.late_module_passes) in Clippy which unlike regular late passes run incrementally per module
However we have a config file which can change between runs, we need changes to that to invalidate the `lint_mod` query. This PR adds a side channel for us to hash some extra state into `Options` in order to do that
This does not make any changes to Clippy, I plan to do that in a PR to the Clippy repo along with some other required changes
An alternative implementation would be to add a new query to track this state and override the `lint_mod` query in Clippy to first call that
cc `@rust-lang/clippy`
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`NoAnn` and `IdentifiedAnnotation` impl both `pprust_ast::PpAnn` and
`pprust_hir::PpAnn`, which is a bit confusing, because the optional
`tcx` is only needed for the HIR cases. (Currently the `tcx` is
unnecessarily provided in the `expanded` AST cases.)
This commit splits each one into `Ast` and `Hir` versions, which makes
things clear about where the `tcx` is needed. The commit also renames
all the traits so they consistently end with `Ann`.
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This avoids the need for a bespoke `tcx.analysis()` call.
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Because they all end up within a `TyCtxt`.
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`call_with_pp_support_ast` and `call_with_pp_support_hir` how each have
a single call site. This commit inlines and removes them, which also
removes the need for all the supporting traits: `Sess`,
`AstPrinterSupport`, and `HirPrinterSupport`. The `sess` member is also
removed from several structs.
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The handling of the `PpMode` variants is currently spread across three
functions: `print_after_parsing`, `print_after_hir_lowering`, and
`print_with_analysis`. Each one handles some of the variants. This split
is primarily because `print_after_parsing` has slightly different
arguments to the other two.
This commit changes the structure. It merges the three functions into a
single `print` function, and encapsulates the different arguments in a
new enum `PrintExtra`.
Benefits:
- The code is a little shorter.
- All the `PpMode` variants are handled in a single `match`, with no
need for `unreachable!` arms.
- It enables the trait removal in the subsequent commit by reducing
the number of `call_with_pp_support_ast` call sites from two to one.
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First, both `AstPrinterSupport` and `HirPrinterSupport` have a `sess`
method. This commit introduces a `Sess` trait and makes the support
traits be subtraits of `Sess`, to avoid some duplication.
Second, both support traits have a `pp_ann` method that isn't needed if
we enable `trait_upcasting`. This commit removes those methods.
(Both of these traits will be removed in a subsequent commit, as will
the `trait_upcasting` use.)
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It's simpler to distinguish the two AST modes directly in `PpMode`.
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`phase_3_run_analysis_passes` no longer exists, and AFAICT this code has
been refactored so much since this comment was written that it no longer
has any useful meaning.
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The callback is trivial and no pp support is actually needed. This makes
the `HirTree` case more like the `AstTree` case above.
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- Rename `pprust` as `pprust_ast`, to align with `pprust_hir`.
- Rename `PrinterSupport` as `AstPrinterSupport`, to align with
`HirPrinterSupport`.
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Use `std::path::PathBuf` rather than `String`; use `std::env::var_os`
rather than `std::env::var`. These changes avoid a number of error paths
which can arise in the presence of non-UTF-8 paths.
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There are 3 instances of var(...) and 3 instances of var_os(...); the
latter avoids an appearance of unhandled error, so use it everywhere.
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As per
https://github.com/rust-lang/rust/blob/master/src/doc/style-guide/src/cargo.md,
which says:
> Sort key names alphabetically within each section, with the exception
> of the [package] section.
And use tidy to enforce it.
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Don't modify libstd to dump rustc ICEs
Do a much simpler thing and just dump a `std::backtrace::Backtrace` to file.
r? `@estebank` `@oli-obk`
Fixes #115610
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Extend rustc -Zls
This makes it show a lot more things and thus a lot more useful.
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It is only used by miri which can create a new one using the Session.
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To avoid confusion if it is called after all parsing is done or not.
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Set Arg0 and CommandLineArgs in MCTargetoptions so LLVM outputs correct CL and CMD in LF_DEBUGINFO instead of empty/invalid values.
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r=pnkfelix
Make SIGSEGV handler emit nicer backtraces
This annotates the code heavily with comments to explain what is going on, for the benefit of other compiler contributors. The backtrace also emits appropriate comments to clarify, to a programmer who may not know why a bunch of file paths and hexadecimal blather was just dumped into stderr, what is going on. Finally, it detects cycles and uses their regularity to avoid repeating a bunch of text. The previous backtraces we were emitting was extremely unfriendly, potentially confusing, and often alarming, and this makes things almost "nice".
We can't necessarily make them much nicer than this, because a signal handler must use "signal-safe" functions. This precludes conveniences like dynamic allocations. Fortunately, Rust's stdlib has allocation-free formatting, but it may hinder integrating this error with our localization middleware, as I wasn't able to clearly ascertain, at a glance, whether there was a zero-alloc path through it.
r? `@Nilstrieb`
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keith:ks/always-add-lc_build_version-for-metadata-object-files, r=wesleywiser
Always add LC_BUILD_VERSION for metadata object files
As of Xcode 15 Apple's linker has become a bit more strict about the warnings it produces. One of those new warnings requires all valid Mach-O object files in an archive to have a LC_BUILD_VERSION load command:
```
ld: warning: no platform load command found in 'ARCHIVE[arm64][2106](lib.rmeta)', assuming: iOS-simulator
```
This was already being done for Mac Catalyst so this change expands this logic to include it for all Apple platforms. I filed this behavior change as FB12546320 and was told it was the new intentional behavior.
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To make it available to other parts of the compiler.
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As of Xcode 15 Apple's linker has become a bit more strict about the
warnings it produces. One of those new warnings requires all valid
Mach-O object files in an archive to have a LC_BUILD_VERSION load
command:
```
ld: warning: no platform load command found in 'ARCHIVE[arm64][2106](lib.rmeta)', assuming: iOS-simulator
```
This was already being done for Mac Catalyst so this change expands this
logic to include it for all Apple platforms. I filed this behavior
change as FB12546320 and was told it was the new intentional behavior.
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Removes a piece of mutable state.
Follow up to #114578.
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Fix missing dependency file with `-Zunpretty`
This PR force the `output_filenames` to be run ~~in every early exits like~~ when using `-Zunpretty`, so to respect the `dep-info` flag.
Fixes https://github.com/rust-lang/rust/issues/112898
r? `@oli-obk`
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Support `--print KIND=PATH` command line syntax
As is already done for `--emit KIND=PATH` and `-L KIND=PATH`.
In the discussion of #110785, it was pointed out that `--print KIND=PATH` is nicer than trying to apply the single global `-o` path to `--print`'s output, because in general there can be multiple print requests within a single rustc invocation, and anyway `-o` would already be used for a different meaning in the case of `link-args` and `native-static-libs`.
I am interested in using `--print cfg=PATH` in Buck2. Currently Buck2 works around the lack of support for `--print KIND=PATH` by [indirecting through a Python wrapper script](https://github.com/facebook/buck2/blob/d43cf3a51a31f00be2c2248e78271b0fef0452b4/prelude/rust/tools/get_rustc_cfg.py) to redirect rustc's stdout into the location dictated by the build system.
From skimming Cargo's usages of `--print`, it definitely seems like it would benefit from `--print KIND=PATH` too. Currently it is working around the lack of this by inserting `--crate-name=___ --print=crate-name` so that it can look for a line containing `___` as a delimiter between the 2 other `--print` informations it actually cares about. This is commented as a "HACK" and "abuse". https://github.com/rust-lang/cargo/blob/31eda6f7c360d9911f853b3014e057db61238f3e/src/cargo/core/compiler/build_context/target_info.rs#L242 (FYI `@weihanglo` as you dealt with this recently in https://github.com/rust-lang/cargo/pull/11633.)
Mentioning reviewers active in #110785: `@fee1-dead` `@jyn514` `@bjorn3`
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This introduces a bit of code duplication, but we don't have the
build_output_filenames in the CrateName arm and this seems a little
cleaner overall.
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Implement rust-lang/compiler-team#578.
When an ICE is encountered on nightly releases, the new rustc panic
handler will also write the contents of the backtrace to disk. If any
`delay_span_bug`s are encountered, their backtrace is also added to the
file. The platform and rustc version will also be collected.
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