51 lines
1.3 KiB
Rust
51 lines
1.3 KiB
Rust
#![crate_type = "rlib"]
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#![crate_type = "cdylib"]
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#[macro_export]
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macro_rules! asm_func {
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($name:expr, $body:expr $(, $($args:tt)*)?) => {
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core::arch::global_asm!(
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concat!(
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".p2align 4\n",
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".hidden ", $name, "\n",
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".global ", $name, "\n",
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".type ", $name, ",@function\n",
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$name, ":\n",
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$body,
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".size ", $name, ",.-", $name,
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)
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$(, $($args)*)?
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);
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};
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}
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macro_rules! libcall_trampoline {
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($libcall:ident ; $libcall_impl:ident) => {
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asm_func!(
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stringify!($libcall),
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concat!(
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"
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.cfi_startproc simple
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.cfi_def_cfa_offset 0
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jmp {}
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.cfi_endproc
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",
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),
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sym $libcall_impl
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);
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};
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}
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pub mod trampolines {
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extern "C" {
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pub fn table_fill_funcref();
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pub fn table_fill_externref();
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}
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unsafe extern "C" fn impl_table_fill_funcref() {}
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unsafe extern "C" fn impl_table_fill_externref() {}
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libcall_trampoline!(table_fill_funcref ; impl_table_fill_funcref);
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libcall_trampoline!(table_fill_externref ; impl_table_fill_externref);
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}
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