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Code loader framework.

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This commit is contained in:
losfair
2019-05-03 00:23:41 +08:00
parent 99c101f312
commit 14bfd75ac9
7 changed files with 242 additions and 1 deletions
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12
lib/singlepass-backend/src/codegen_x64.rs
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@ -159,6 +159,7 @@ pub struct X64ExecutionContext {
#[allow(dead_code)]
functions: Vec<X64FunctionCode>,
function_pointers: Vec<FuncPtr>,
function_offsets: Vec<AssemblyOffset>,
signatures: Arc<Map<SigIndex, FuncSig>>,
_br_table_data: Vec<Vec<usize>>,
breakpoints: Arc<HashMap<usize, Box<Fn(BkptInfo) + Send + Sync + 'static>>>,
@ -270,6 +271,14 @@ impl RunnableModule for X64ExecutionContext {
protect_unix::TRAP_EARLY_DATA.with(|x| x.set(Some(data)));
protect_unix::trigger_trap();
}
fn get_code(&self) -> Option<&[u8]> {
Some(&self.code)
}
fn get_offsets(&self) -> Option<Vec<usize>> {
Some(self.function_offsets.iter().map(|x| x.0).collect())
}
}
#[derive(Debug)]
@ -376,6 +385,7 @@ impl ModuleCodeGenerator<X64FunctionCode, X64ExecutionContext, CodegenError>
self.function_labels.as_ref().unwrap()
};
let mut out_labels: Vec<FuncPtr> = vec![];
let mut out_offsets: Vec<AssemblyOffset> = vec![];
for i in 0..function_labels.len() {
let (_, offset) = match function_labels.get(&i) {
@ -395,6 +405,7 @@ impl ModuleCodeGenerator<X64FunctionCode, X64ExecutionContext, CodegenError>
}
};
out_labels.push(FuncPtr(output.ptr(*offset) as _));
out_offsets.push(*offset);
}
let breakpoints: Arc<HashMap<_, _>> = Arc::new(
@ -412,6 +423,7 @@ impl ModuleCodeGenerator<X64FunctionCode, X64ExecutionContext, CodegenError>
breakpoints: breakpoints,
func_import_count: self.func_import_count,
function_pointers: out_labels,
function_offsets: out_offsets,
})
}