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This allows analyzing the output programatically; for example, finding
the item with the highest `total_estimate`.
I also took the liberty of adding `untracked` tests to `rustc_session` and documentation to the unstable book for `dump-mono-items`.
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Skip test on s390x as LLD does not support the platform
test/run-make/issue-71519 requires use of lld as linker, but lld does not currently support the s390x architecture.
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Include is there only for the effect executing the rule.
The file is not intended to be remade successfully to be
actually included.
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test/run-make/issue-71519 requires use of lld as linker,
but lld does not currently support the s390x architecture.
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Stabilize native library modifier `verbatim`
Stabilization report - https://github.com/rust-lang/rust/pull/104360#issuecomment-1312724787.
cc https://github.com/rust-lang/rust/issues/81490
Closes https://github.com/rust-lang/rust/issues/99425
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Previously, async constructs would be lowered to "normal" generators,
with an additional `from_generator` / `GenFuture` shim in between to
convert from `Generator` to `Future`.
The compiler will now special-case these generators internally so that
async constructs will *directly* implement `Future` without the need
to go through the `from_generator` / `GenFuture` shim.
The primary motivation for this change was hiding this implementation
detail in stack traces and debuginfo, but it can in theory also help
the optimizer as there is less abstractions to see through.
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copy doc output files by format
This pr provides copying doc outputs by checking output format without removing output directory on each trigger.
Resolves #103785
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Match and enforce crate and slug names
Some of these were in the wrong place or had a name that didn't match.
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Mark functions created for `raw-dylib` on x86 with DllImport storage class
Fix for #104453
## Issue Details
On x86 Windows, LLVM uses 'L' as the prefix for any private global symbols (`PrivateGlobalPrefix`), so when the `raw-dylib` feature creates an undecorated function symbol that begins with an 'L' LLVM misinterprets that as a private global symbol that it created and so fails the compilation at a later stage since such a symbol must have a definition.
## Fix Details
Mark the function we are creating for `raw-dylib` with `DllImport` storage class (this was already being done for MSVC at a later point for `callee::get_fn` but not for GNU (due to "backwards compatibility")): this will cause LLVM to prefix the name with `__imp_` and so it won't mistake it for a private global symbol.
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Pass 128-bit C-style enum enumerator values to LLVM
Pass the full 128 bits of C-style enum enumerators through to LLVM. This means that debuginfo for C-style repr128 enums is now emitted correctly for DWARF platforms (as compared to not being correctly emitted on any platform).
Tracking issue: #56071
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This reverts commit 0567fec8e47f83ddda623f93deccddddd3f6744f.
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Signed-off-by: ozkanonur <work@onurozkan.dev>
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This option prints all supported values for -Csplit-debuginfo=.., i.e.
only stable ones on stable/beta and all of them on nightly/dev.
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rustdoc: add hash to filename of toolchain files
All static files used by rustdoc are now stored in static.files/ and their filenames include a hash of their contents. Their filenames no longer include the contents of the --resource-suffix flag. This clarifies caching semantics. Anything in static.files can use Cache-Control: immutable because any updates will show up as a new URL.
Invocation-specific files like crates-NN.js, search-index-NN.js, and sidebar-items-NN.js still get the resource suffix.
This has a useful side effect: once toolchain files aren't affected by resource suffix, it will become possible for docs.rs to include crate version in the resource suffix. That should fix a caching issue with `/latest/` URLs: https://github.com/rust-lang/docs.rs/issues/1593. My goal is that it should be safe to serve all rustdoc JS, CSS, and fonts with infinite caching headers, even when new versions of a crate are uploaded in the same place as old versions.
The --disable-minification flag is removed because it would vary the output of static files based on invocation flags. Instead, for rustdoc development purposes it's preferable to symlink static files to a non-minified copy for quick iteration.
Example listing:
```
$ cd build/x86_64-unknown-linux-gnu/doc/ && find . | egrep 'js$|css$' | egrep -v 'sidebar-items|implementors' | sort
./crates1.65.0.js
./rust.css
./search-index1.65.0.js
./source-files1.65.0.js
./static.files/ayu-2bfd0af01c176fd5.css
./static.files/dark-95d11b5416841799.css
./static.files/light-c83a97e93a11f15a.css
./static.files/main-efc63f77fb116394.js
./static.files/normalize-76eba96aa4d2e634.css
./static.files/noscript-5bf457055038775c.css
./static.files/rustdoc-7a422337900fa894.css
./static.files/scrape-examples-3dd10048bcead3a4.js
./static.files/search-47f3c289722672cf.js
./static.files/settings-17b08337296ac774.js
./static.files/settings-3f95eacb845293c0.css
./static.files/source-script-215e9db86679192e.js
./static.files/storage-26d846fcae82ff09.js
```
Fixes #98413
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When someone makes a typo, it can be useful to see the valid options.
This is also useful if someone wants to find out about all the options.
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run-make
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All static files used by rustdoc are now stored in static.files/ and
include a hash of their contents. They no longer include the contents of
the --resource-suffix flag. This clarifies caching semantics. Anything
in static.files can use Cache-Control: immutable because any updates
will show up as a new URL.
Invocation-specific files like crates-NN.js, search-index-NN.js,
and sidebar-items-NN.js still get the resource suffix.
The --disable-minification flag is removed because it would vary the
output of static files based on invocation flags. Instead, for
rustdoc development purposes it's preferable to symlink static files
to a non-minified copy for quick iteration.
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Partially fix `src/test/run-make/coverage-reports` when cross-compiling
The test does not work on cross-compiled targets because the --target flag was not passed to rustc inside the test. This commit fixes that by adding the flag to the invocations.
Note that the test still fails on cross-compiled targets using remote-test, as remote-test is not capable (yet) of sending back to the host system the `*.profraw` file generated by the instrumentation.
Because of that, this is only a partial fix, and the test has been ignored on cross-compilation.
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The test does not work on cross-compiled targets because the --target
flag was not passed to rustc inside the test. This commit fixes that by
adding the flag to the invocations.
Note that the test still fails on cross-compiled targets using
remote-test, as remote-test is not capable (yet) of sending back to the
host system the *.profraw file generated by the instrumentation.
Because of that, this is only a partial fix, and the test has been
ignored on cross-compilation.
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This test fails when targeting aarch64 Android. Instead of adding yet
another architecture here (and one that's increasingly more common
as the host), let's replace the growing list of architectures with
ignore-cross-compile.
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Previously attempting to link universal libraries into libraries (but not binaries) would produce an error that "File too small to be an archive". This works around this by using `object` to extract a library for the target platform when passed a univeral library.
Fixes #55235
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fix verbatim with upstream dependencies
https://github.com/rust-lang/rust/issues/99425#issuecomment-1207224161
r? `@petrochenkov`
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https://github.com/rust-lang/rust/issues/99425#issuecomment-1207224161
r? `@petrochenkov`
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Fix `#[link kind="raw-dylib"]` to respect `#[link_name]`
Issue Details:
When using `#[link kind="raw-dylib"]` (#58713), the Rust compiler ignored any `#[link_name]` attributes when generating the import library and so the resulting binary would fail to link due to missing symbols.
Fix Details:
Use the name from `#[link_name]` if present when generating the `raw-dylib` import library, otherwise default back to the actual symbol name.
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Stabilize raw-dylib for non-x86
This stabilizes the `raw-dylib` and `link_ordinal` features (#58713) for non-x86 architectures (i.e., `x86_64`, `aarch64` and `thumbv7a`):
* Marked the `raw_dylib` feature as `active`.
* Marked the `link_ordinal` attribute as `ungated`.
* Added new errors if either feature is used on x86 targets without the `raw_dylib` feature being enabled.
* Updated tests to only set the `raw_dylib` feature when building for x86.
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Fix `-Zgcc-ld=lld`
`-Zgcc-ld=lld` is currently broken. CI is currently ignoring its tests.
cc `@Mark-Simulacrum` on the `compiletest` change: I'm not sure which of `bootstrap`'s test step or `compiletest` is currently incorrect wrt windows' `--compile-lib-path`. Since `sysroot/bin` is passed on windows, that means that `compiletest` can't find `rust-lld` on windows and tests are currently ignored: it's looking for something that is in `sysroot/lib` instead.
They are currently ignored on unixes for a different reason: the lld wrapper has a different name than what is checked.
(I've changed `compiletest` in this PR, just because I could make a very targeted change there, whereas completely changing the intentional lib path that is passed seemed it'd have wider reaching implications on all tests.)
And in both unix/win cases, I've changed the detection to look for `rust-lld` rather than the wrappers in `bin/gcc-ld/`. It seems like the more stable of all these executable names.
r? `@petrochenkov`
I've tested the `lld-wrapper` change on linux and osx, but couldn't test on windows gnu targets (I only have MSVC targets, and these can't use `rust-lld` via `-Zgcc-ld=lld`, nor do they use the lld wrapper IIUC).
I'd expect it to work whether or not the wrapper is called with or without an executable suffix. But at least now CI should test it in these targets.
Fixes #101370.
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now that CI correctly detects rust-lld in run-make tests, we ignore this
test since it relies on `-Zgcc-ld=lld` which is not made to work on the
windows-msvc targets: it requires a gcc flavor.
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Track PGO profiles in depinfo
This PR makes sure that PGO profiles (`-Cprofile-use` and `-Cprofile-sample-use`) are tracked in depinfo, so that when they change, the compilation session will be invalidated.
This approach was discussed on [Zulip](https://rust-lang.zulipchat.com/#narrow/stream/246057-t-cargo/topic/Tracking.20PGO.20profile.20files.20in.20cargo).
I tried it locally and it seems that the code is recompiled just with this change, and https://github.com/rust-lang/rust/pull/100413 is not even needed. But it's possible that not everything required is recompiled, so we will probably want to land both changes.
Another approach to implement this could be to store the PGO profiles in `sess.parse_sess.file_depinfo` when the session is being created, but then the paths would have to be converted to a string and then to a symbol, which seemed unnecessarily complicated.
CC `@michaelwoerister`
r? `@Eh2406`
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This PR will fix some typos detected by [typos].
I only picked the ones I was sure were spelling errors to fix, mostly in
the comments.
[typos]: https://github.com/crate-ci/typos
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Don't derive `PartialEq::ne`.
Currently we skip deriving `PartialEq::ne` for C-like (fieldless) enums
and empty structs, thus reyling on the default `ne`. This behaviour is
unnecessarily conservative, because the `PartialEq` docs say this:
> Implementations must ensure that eq and ne are consistent with each other:
>
> `a != b` if and only if `!(a == b)` (ensured by the default
> implementation).
This means that the default implementation (`!(a == b)`) is always good
enough. So this commit changes things such that `ne` is never derived.
The motivation for this change is that not deriving `ne` reduces compile
times and binary sizes.
Observable behaviour may change if a user has defined a type `A` with an
inconsistent `PartialEq` and then defines a type `B` that contains an
`A` and also derives `PartialEq`. Such code is already buggy and
preserving bug-for-bug compatibility isn't necessary.
Two side-effects of the change:
- There is only one error message produced for types where `PartialEq`
cannot be derived, instead of two.
- For coverage reports, some warnings about generated `ne` methods not
being executed have disappeared.
Both side-effects seem fine, and possibly preferable.
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Replace - with _ in fluent slugs to improve developer workflows
This is a proposal to smoothen the compiler contribution experience in the face of the move to fluent.
## Context
The fluent project has introduced a layer of abstraction to compiler errors. Previously, people would write down error messages directly in the same file the code was located to emit them. Now, there is a slug that connects the code in the compiler to the error message in the ftl file.
You can look at 7ef610c003f8072ec4ca4ecf195922a9a44e48dd to see an example of the changes:
Old:
```Rust
let msg = format!(
"bounds on `{}` are most likely incorrect, consider instead \
using `{}` to detect whether a type can be trivially dropped",
predicate,
cx.tcx.def_path_str(needs_drop)
);
lint.build(&msg).emit();
```
New (Rust side):
```Rust
lint.build(fluent::lint::drop_trait_constraints)
.set_arg("predicate", predicate)
.set_arg("needs_drop", cx.tcx.def_path_str(needs_drop))
.emit();
```
New (Fluent side):
```fluent
lint-drop-trait-constraints =
bounds on `{$predicate}` are most likely incorrect, consider instead using `{$needs_drop}` to detect whether a type can be trivially dropped
```
You will note that in the ftl file, the slug is slightly different from the slug in the Rust file: The ftl slug uses `-` (e.g. `lint-drop-trait-constraints`) while the rust slug uses `::` and `_` (e.g. `lint::drop_trait_constraints`). This choice was probably done due to:
* Rust not accepting `-` in identifiers (as it is an operator)
* fluent not supporting the `:` character in slug names (parse error upon attempts)
* all official fluent documentation using `-` instead of `_`
## The problem
The two different types of slugs, one with `-`, and one with `_`, cause difficulties for contributors. Imagine you don't have perfect knowledge of where stuff is in the compiler (i would say this is most people), and you encounter an error for which you think there is something you could improve that is not just a rewording.
So you want to find out where in the compiler's code that error is being emitted. The best way is via grepping.
1. you grep for the message in the compiler's source code. You discover the ftl file and find out the slug for that error.
2. That slug however contains `-` instead of `_`, so you have to manually translate the `-`'s into `_`s, and furthermore either remove the leading module name, or replace the first `-` with a `::`.
3. you do a second grep to get to the emitting location in the compiler's code.
This translation difficulty in step 2 appears also in the other direction when you want to figure out what some code in the compiler is doing and use error messages to help your understanding. Comments and variable names are way less exposed to users so [are more likely going to lie](https://github.com/rust-lang/rust/commit/cc3c5d2700481bae497d6cde825c1d48e79c776a) than error messages.
I think that at least the `-`→`_` translation which makes up most of step 2 can be removed at low cost.
## The solution
If you look closely, the practice of fluent to use `-` is only a stylistic choice and it is not enforced by fluent implementations, neither the playground nor the one the rust compiler uses, that slugs may not contain `_`. Thus, we can in fact migrate the ftl side to `_`. So now we'll have slugs like `lint_drop_trait_constraints` on the ftl side. You only have to do one replacement now to get to the Rust slug: remove the first `_` and place a `::` in its stead. I would argue that this change is in fact useful as it allows you to control whether you want to look at the rust side of things or the ftl side of things via changing the query string only: with an increased number of translations checked into the repository, grepping for raw slugs will return the slug in many ftl files, so an explicit step to look for the source code is always useful. In the other direction (rust to fluent), you don't need a translation at all any more, as you can just take the final piece of the slug (e.g. `drop_trait_constraints`) and grep for that. The PR also adds enforcement to forbid usage of `_` in slug names. Internal slug names (those leading with a `-`) are exempt from that enforcement.
As another workflow that benefits from this change, people who add new errors don't have to do that `-` conversion either.
| Before/After | Fluent slug | Rust slug (no change) |
|--|--|--|
| Before | `lint-drop-trait-constraints` | `lint::drop_trait_constraints`|
| After | `lint_drop_trait_constraints` | `lint::drop_trait_constraints`|
Note that I've suggested this previously in the translation thread on zulip. I think it's important to think about non-translator contribution impact of fluent. I have certainly plans for more improvements, but this is a good first step.
``@rustbot`` label A-diagnostics
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Refuse to codegen an upstream static.
Fixes https://github.com/rust-lang/rust/issues/85401
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