Use aapcs for efiapi calling convention on arm #104077
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r? @estebank (rustbot has picked a reviewer for you, use r? to override) |
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These commits modify compiler targets. |
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This is correct, but could benefit from a codegen test making sure that we definitely output specifically soft-float aapcs variant of this calling convention for ARM. I’m a little worried that at some future point somebody might argue that |
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r? @nagisa |
On arm, llvm treats the C calling convention as `aapcs` on soft-float targets and `aapcs-vfp` on hard-float targets [1]. UEFI specifies in the arm calling convention that floating point extensions aren't used [2], so always translate `efiapi` to `aapcs` on arm. [1]: rust-lang/compiler-builtins#116 (comment) [2]: https://uefi.org/specs/UEFI/2.10/02_Overview.html#detailed-calling-convention rust-lang#65815
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Perfect. @bors r+ |
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…r=nagisa Use aapcs for efiapi calling convention on arm On arm, [llvm treats the C calling convention as `aapcs` on soft-float targets and `aapcs-vfp` on hard-float targets](rust-lang/compiler-builtins#116 (comment)). UEFI specifies in the arm calling convention that [floating point extensions aren't used](https://uefi.org/specs/UEFI/2.10/02_Overview.html#detailed-calling-convention), so always translate `efiapi` to `aapcs` on arm. rust-lang#65815
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…earth Rollup of 9 pull requests Successful merges: - rust-lang#101939 (Add loongarch64 abi support) - rust-lang#103863 (Use `TraitEngine` in more places, restrict visibility of `FulfillmentCtxt` constructor) - rust-lang#104036 (Suggest `is_some` when we've found `Option` but expected `bool`) - rust-lang#104060 (Make `Hash`, `Hasher` and `BuildHasher` `#[const_trait]` and make `Sip` const `Hasher`) - rust-lang#104077 (Use aapcs for efiapi calling convention on arm) - rust-lang#104186 (Tighten the 'introduce new binding' suggestion) - rust-lang#104194 (`EarlyBinder` docs) - rust-lang#104233 (Don't ICE when encountering `ConstKind::Error` in `RequiredConstsVisitor`) - rust-lang#104235 (Use `const_error_with_guaranteed` more) Failed merges: - rust-lang#104078 (Print "Checking/Building ..." message even when --dry-run is passed) - rust-lang#104169 (Migrate `:target` rules to use CSS variables) r? `@ghost` `@rustbot` modify labels: rollup
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On arm, llvm treats the C calling convention as
aapcson soft-float targets andaapcs-vfpon hard-float targets. UEFI specifies in the arm calling convention that floating point extensions aren't used, so always translateefiapitoaapcson arm.#65815