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add extern "custom" functions

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This commit is contained in:
Folkert de Vries 2025-05-07 20:02:29 +02:00
parent d5e9833af3
commit dcc48749e2
1 changed files with 5 additions and 0 deletions
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5
src/abi/mod.rs
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@ -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,