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Backtrace WebAssembly function JIT frames (#759)

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* Create backtrace

* Extend unwind information with FDE data.

* Expose backtrace via API/Trap

* wasmtime_call returns not-str

* Return Arc<JITFrameTag>

* rename frame -> function

* Fix windows crashes and unwrap UNWIND_HISTORY_TABLE

* mmaps -> entries

* pass a backtrace in ActionOutcome

* add test_trap_stack_overflow

* Update cranelift version.
This commit is contained in:
Yury Delendik
2020-01-15 13:48:24 -06:00
committed by GitHub
parent 0848a7eaaa
commit 2a50701f0a
26 changed files with 803 additions and 149 deletions
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10
crates/api/src/callable.rs
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@@ -147,7 +147,7 @@ impl WrappedCallable for WasmtimeFn {
.map_err(|e| Trap::new(format!("trampoline error: {:?}", e)))?;
// Call the trampoline.
if let Err(message) = unsafe {
if let Err(error) = unsafe {
self.instance.with_signals_on(|| {
wasmtime_runtime::wasmtime_call_trampoline(
vmctx,
@@ -156,8 +156,12 @@ impl WrappedCallable for WasmtimeFn {
)
})
} {
let trap =
take_api_trap().unwrap_or_else(|| Trap::new(format!("call error: {}", message)));
let message = error.0;
let backtrace = error.1;
let trap = take_api_trap().unwrap_or_else(|| {
Trap::new_with_trace(format!("call error: {}", message), backtrace)
});
return Err(trap);
}