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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_codegen_cranelift | |
| parent | 0a39445252ac076ef573bcacee63bbdc59497b52 (diff) | |
| download | rust-5f73ce2b7ebfc0234a4bc736217110a2af1e2380.tar.gz rust-5f73ce2b7ebfc0234a4bc736217110a2af1e2380.zip | |
add `extern "custom"` functions
Diffstat (limited to 'compiler/rustc_codegen_cranelift')
| -rw-r--r-- | compiler/rustc_codegen_cranelift/src/abi/mod.rs | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/compiler/rustc_codegen_cranelift/src/abi/mod.rs b/compiler/rustc_codegen_cranelift/src/abi/mod.rs index fe5b220117f..4c6fd907815 100644 --- a/compiler/rustc_codegen_cranelift/src/abi/mod.rs +++ b/compiler/rustc_codegen_cranelift/src/abi/mod.rs @@ -51,6 +51,11 @@ pub(crate) fn conv_to_call_conv( CanonAbi::Rust | CanonAbi::C => default_call_conv, CanonAbi::RustCold => CallConv::Cold, + // Functions with this calling convention can only be called from assembly, but it is + // possible to declare an `extern "custom"` block, so the backend still needs a calling + // convention for declaring foreign functions. + CanonAbi::Custom => default_call_conv, + CanonAbi::X86(x86_call) => match x86_call { X86Call::SysV64 => CallConv::SystemV, X86Call::Win64 => CallConv::WindowsFastcall, |