allow `#[rustc_std_internal_symbol]` in combination with `#[naked]` #140552

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Merged

bors merged 1 commit into rust-lang:master from folkertdev:naked-function-rustc_std_internal_symbol

May 2, 2025

+8 −1

Contributor

folkertdev commented May 1, 2025

The need for this came up in rust-lang/compiler-builtins#897, but in general this seems useful and valid to allow.

Based on a quick scan, I don't think changes to the generated assembly are needed.


          allow #[rustc_std_internal_symbol] in combination with #[naked]

5d30814

rustbot assigned fee1-dead

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rustbot commented May 1, 2025

rustbot has assigned @fee1-dead.
They will have a look at your PR within the next two weeks and either review your PR or reassign to another reviewer.

Use r? to explicitly pick a reviewer

rustbot added A-attributes S-waiting-on-review T-compiler labels

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rustbot commented May 1, 2025

Some changes occurred in compiler/rustc_passes/src/check_attr.rs

cc @jdonszelmann

Member

bjorn3 commented May 1, 2025

Based on a quick scan, I don't think changes to the generated assembly are needed.

Indeed. #[rustc_std_internal_symbol] is basically #[no_mangle] except it doesn't export the symbol from cdylibs (by omitting it from the version script) and it does rustc version dependent mangling.

@bors r+ rollup

Collaborator

bors commented May 1, 2025

📌 Commit 5d30814 has been approved by bjorn3

It is now in the queue for this repository.

bors added S-waiting-on-bors and removed S-waiting-on-review labels

GuillaumeGomez added a commit to GuillaumeGomez/rust that referenced this pull request


          Rollup merge of rust-lang#140552 - folkertdev:naked-function-rustc_st…

95abfbb

…d_internal_symbol, r=bjorn3

allow `#[rustc_std_internal_symbol]` in combination with `#[naked]`

The need for this came up in rust-lang/compiler-builtins#897, but in general this seems useful and valid to allow.

Based on a quick scan, I don't think changes to the generated assembly are needed.

cc `@bjorn3`

GuillaumeGomez mentioned this pull request

Rollup of 12 pull requests #140562

Closed

bors added a commit to rust-lang-ci/rust that referenced this pull request


          Auto merge of rust-lang#140562 - GuillaumeGomez:rollup-j5rbgt3, r=Gui…

9033d60

…llaumeGomez

Rollup of 12 pull requests

Successful merges:

 - rust-lang#138703 (chore: remove redundant words in comment)
 - rust-lang#139186 (Refactor `diy_float`)
 - rust-lang#139343 (Change signature of File::try_lock and File::try_lock_shared)
 - rust-lang#139780 (docs: Add example to `Iterator::take` with `by_ref`)
 - rust-lang#139802 (Fix some grammar errors and hyperlinks in doc for `trait Allocator`)
 - rust-lang#140034 (simd_select_bitmask: the 'padding' bits in the mask are just ignored)
 - rust-lang#140062 (std: mention `remove_dir_all` can emit `DirectoryNotEmpty` when concurrently written into)
 - rust-lang#140420 (rustdoc: Fix doctest heuristic for main fn wrapping)
 - rust-lang#140460 (Fix handling of LoongArch target features not supported by LLVM 19)
 - rust-lang#140538 (rustc-dev-guide subtree update)
 - rust-lang#140552 (allow `#[rustc_std_internal_symbol]` in combination with `#[naked]`)
 - rust-lang#140556 (Improve error output in case `nodejs` or `npm` is not installed for rustdoc-gui test suite)

r? `@ghost`
`@rustbot` modify labels: rollup

GuillaumeGomez mentioned this pull request

Rollup of 12 pull requests #140565

Merged

bors added a commit to rust-lang-ci/rust that referenced this pull request


          Auto merge of rust-lang#140565 - GuillaumeGomez:rollup-gv4ed14, r=Gui…

cb0d6e7

…llaumeGomez

Rollup of 12 pull requests

Successful merges:

 - rust-lang#138703 (chore: remove redundant words in comment)
 - rust-lang#139186 (Refactor `diy_float`)
 - rust-lang#139780 (docs: Add example to `Iterator::take` with `by_ref`)
 - rust-lang#139802 (Fix some grammar errors and hyperlinks in doc for `trait Allocator`)
 - rust-lang#140034 (simd_select_bitmask: the 'padding' bits in the mask are just ignored)
 - rust-lang#140062 (std: mention `remove_dir_all` can emit `DirectoryNotEmpty` when concurrently written into)
 - rust-lang#140420 (rustdoc: Fix doctest heuristic for main fn wrapping)
 - rust-lang#140460 (Fix handling of LoongArch target features not supported by LLVM 19)
 - rust-lang#140538 (rustc-dev-guide subtree update)
 - rust-lang#140544 (Clean up "const" situation in format_args!(). )
 - rust-lang#140552 (allow `#[rustc_std_internal_symbol]` in combination with `#[naked]`)
 - rust-lang#140556 (Improve error output in case `nodejs` or `npm` is not installed for rustdoc-gui test suite)

r? `@ghost`
`@rustbot` modify labels: rollup

VlaDexa added a commit to VlaDexa/rust that referenced this pull request


          Rollup merge of rust-lang#140552 - folkertdev:naked-function-rustc_st…

64577cf

…d_internal_symbol, r=bjorn3

allow `#[rustc_std_internal_symbol]` in combination with `#[naked]`

The need for this came up in rust-lang/compiler-builtins#897, but in general this seems useful and valid to allow.

Based on a quick scan, I don't think changes to the generated assembly are needed.

cc `@bjorn3`

VlaDexa added a commit to VlaDexa/rust that referenced this pull request


          Rollup merge of rust-lang#140565 - GuillaumeGomez:rollup-gv4ed14, r=G…

5086b3e

…uillaumeGomez

Rollup of 12 pull requests

Successful merges:

 - rust-lang#138703 (chore: remove redundant words in comment)
 - rust-lang#139186 (Refactor `diy_float`)
 - rust-lang#139780 (docs: Add example to `Iterator::take` with `by_ref`)
 - rust-lang#139802 (Fix some grammar errors and hyperlinks in doc for `trait Allocator`)
 - rust-lang#140034 (simd_select_bitmask: the 'padding' bits in the mask are just ignored)
 - rust-lang#140062 (std: mention `remove_dir_all` can emit `DirectoryNotEmpty` when concurrently written into)
 - rust-lang#140420 (rustdoc: Fix doctest heuristic for main fn wrapping)
 - rust-lang#140460 (Fix handling of LoongArch target features not supported by LLVM 19)
 - rust-lang#140538 (rustc-dev-guide subtree update)
 - rust-lang#140544 (Clean up "const" situation in format_args!(). )
 - rust-lang#140552 (allow `#[rustc_std_internal_symbol]` in combination with `#[naked]`)
 - rust-lang#140556 (Improve error output in case `nodejs` or `npm` is not installed for rustdoc-gui test suite)

r? `@ghost`
`@rustbot` modify labels: rollup

VlaDexa mentioned this pull request

Rollup of 40 pull requests #140573

Closed

bors merged commit 84ac890 into rust-lang:master

6 checks passed

rustbot added this to the 1.88.0 milestone

rust-timer added a commit to rust-lang-ci/rust that referenced this pull request


          Unrolled build for rust-lang#140552

b38d66c

Rollup merge of rust-lang#140552 - folkertdev:naked-function-rustc_std_internal_symbol, r=bjorn3

allow `#[rustc_std_internal_symbol]` in combination with `#[naked]`

The need for this came up in rust-lang/compiler-builtins#897, but in general this seems useful and valid to allow.

Based on a quick scan, I don't think changes to the generated assembly are needed.

cc ``@bjorn3``

fee1-dead assigned bjorn3 and unassigned fee1-dead

folkertdev mentioned this pull request

use #[naked] for __rust_probestack rust-lang/compiler-builtins#897

Closed

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