36 lines
1.2 KiB
Rust
36 lines
1.2 KiB
Rust
use cranelift_codegen::settings;
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use cranelift_codegen::settings::Configurable;
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use faerie::Artifact;
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use wasmtime_runtime;
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/// Emits a module that has been emitted with the `WasmRuntime` runtime
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/// implementation to a native object file.
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pub fn emit_module<'module>(
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obj: &mut Artifact,
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compilation: &wasmtime_runtime::Compilation<'module>,
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relocations: &wasmtime_runtime::Relocations,
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) -> Result<(), String> {
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debug_assert!(
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compilation.module.start_func.is_none()
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|| compilation.module.start_func.unwrap() >= compilation.module.imported_funcs.len(),
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"imported start functions not supported yet"
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);
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let mut shared_builder = settings::builder();
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shared_builder
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.enable("enable_verifier")
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.expect("Missing enable_verifier setting");
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for (i, function_relocs) in relocations.iter().enumerate() {
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assert!(function_relocs.is_empty(), "relocations not supported yet");
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let body = &compilation.functions[i];
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let func_index = compilation.module.imported_funcs.len() + i;
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let string_name = format!("wasm_function[{}]", func_index);
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obj.define(string_name, body.clone())
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.map_err(|err| format!("{}", err))?;
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}
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Ok(())
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}
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