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Disable define_function to prevent crashing on things cranelift doesn't yet support

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This commit is contained in:
bjorn3 2018-07-18 13:43:17 +02:00
parent 9615f3a137
commit 9a9054ad23
3 changed files with 26 additions and 21 deletions
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38
src/lib.rs
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@ -192,27 +192,29 @@ impl CodegenBackend for CraneliftCodegenBackend {
tcx.sess.warn("Compiled everything");
module.finalize_all();
// TODO: this doesn't work most of the time
if false {
module.finalize_all();
tcx.sess.warn("Finalized everything");
tcx.sess.warn("Finalized everything");
for (inst, func_id) in def_id_fn_id_map.iter() {
//if tcx.absolute_item_path_str(inst.def_id()) != "example::ret_42" {
if tcx.absolute_item_path_str(inst.def_id()) != "example::option_unwrap_or" {
continue;
for (inst, func_id) in def_id_fn_id_map.iter() {
//if tcx.absolute_item_path_str(inst.def_id()) != "example::ret_42" {
if tcx.absolute_item_path_str(inst.def_id()) != "example::option_unwrap_or" {
continue;
}
let finalized_function: *const u8 = module.finalize_function(*func_id);
/*let f: extern "C" fn(&mut u32) = unsafe { ::std::mem::transmute(finalized_function) };
let mut res = 0u32;
f(&mut res);
tcx.sess.warn(&format!("ret_42 returned {}", res));*/
let f: extern "C" fn(&mut bool, &u8, bool) = unsafe { ::std::mem::transmute(finalized_function) };
let mut res = false;
f(&mut res, &3, false);
tcx.sess.warn(&format!("option_unwrap_or returned {}", res));
}
let finalized_function: *const u8 = module.finalize_function(*func_id);
/*let f: extern "C" fn(&mut u32) = unsafe { ::std::mem::transmute(finalized_function) };
let mut res = 0u32;
f(&mut res);
tcx.sess.warn(&format!("ret_42 returned {}", res));*/
let f: extern "C" fn(&mut bool, &u8, bool) = unsafe { ::std::mem::transmute(finalized_function) };
let mut res = false;
f(&mut res, &3, false);
tcx.sess.warn(&format!("option_unwrap_or returned {}", res));
}
module.finish();
module.finish();
}
tcx.sess.fatal("unimplemented");