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| author | Folkert de Vries <folkert@folkertdev.nl> | 2025-05-07 20:02:29 +0200 |
|---|---|---|
| committer | Folkert de Vries <folkert@folkertdev.nl> | 2025-06-12 20:27:10 +0200 |
| commit | 5f73ce2b7ebfc0234a4bc736217110a2af1e2380 (patch) | |
| tree | ebc007a2643f2ab9d875026e22478682735f908f /compiler/rustc_abi | |
| parent | 0a39445252ac076ef573bcacee63bbdc59497b52 (diff) | |
| download | rust-5f73ce2b7ebfc0234a4bc736217110a2af1e2380.tar.gz rust-5f73ce2b7ebfc0234a4bc736217110a2af1e2380.zip | |
add `extern "custom"` functions
Diffstat (limited to 'compiler/rustc_abi')
| -rw-r--r-- | compiler/rustc_abi/src/canon_abi.rs | 4 | ||||
| -rw-r--r-- | compiler/rustc_abi/src/extern_abi.rs | 6 |
2 files changed, 10 insertions, 0 deletions
diff --git a/compiler/rustc_abi/src/canon_abi.rs b/compiler/rustc_abi/src/canon_abi.rs index 03eeb645489..7c020be6761 100644 --- a/compiler/rustc_abi/src/canon_abi.rs +++ b/compiler/rustc_abi/src/canon_abi.rs @@ -28,6 +28,9 @@ pub enum CanonAbi { Rust, RustCold, + /// An ABI that rustc does not know how to call or define. + Custom, + /// ABIs relevant to 32-bit Arm targets Arm(ArmCall), /// ABI relevant to GPUs: the entry point for a GPU kernel @@ -57,6 +60,7 @@ impl fmt::Display for CanonAbi { CanonAbi::C => ExternAbi::C { unwind: false }, CanonAbi::Rust => ExternAbi::Rust, CanonAbi::RustCold => ExternAbi::RustCold, + CanonAbi::Custom => ExternAbi::Custom, CanonAbi::Arm(arm_call) => match arm_call { ArmCall::Aapcs => ExternAbi::Aapcs { unwind: false }, ArmCall::CCmseNonSecureCall => ExternAbi::CCmseNonSecureCall, diff --git a/compiler/rustc_abi/src/extern_abi.rs b/compiler/rustc_abi/src/extern_abi.rs index 0bc1c8a0930..7457ae1f033 100644 --- a/compiler/rustc_abi/src/extern_abi.rs +++ b/compiler/rustc_abi/src/extern_abi.rs @@ -40,6 +40,11 @@ pub enum ExternAbi { /// Even normally-compatible Rust types can become ABI-incompatible with this ABI! Unadjusted, + /// An ABI that rustc does not know how to call or define. Functions with this ABI can + /// only be created using `#[naked]` functions or `extern "custom"` blocks, and can only + /// be called from inline assembly. + Custom, + /// UEFI ABI, usually an alias of C, but sometimes an arch-specific alias /// and only valid on platforms that have a UEFI standard EfiApi, @@ -141,6 +146,7 @@ abi_impls! { AvrNonBlockingInterrupt =><= "avr-non-blocking-interrupt", Cdecl { unwind: false } =><= "cdecl", Cdecl { unwind: true } =><= "cdecl-unwind", + Custom =><= "custom", EfiApi =><= "efiapi", Fastcall { unwind: false } =><= "fastcall", Fastcall { unwind: true } =><= "fastcall-unwind", |