From 10159a897c404ec52d63faeb54a052c48cb1a6c9 Mon Sep 17 00:00:00 2001
From: Alon Zakai <alonzakai@gmail.com>
Date: Wed, 23 Mar 2016 14:45:13 -0700
Subject: add function stack printing in interpreter
---
src/wasm-js.cpp | 12 ++++++++++++
1 file changed, 12 insertions(+)
(limited to 'src/wasm-js.cpp')
diff --git a/src/wasm-js.cpp b/src/wasm-js.cpp
index 03eddd031..d978e4a2a 100644
--- a/src/wasm-js.cpp
+++ b/src/wasm-js.cpp
@@ -382,6 +382,18 @@ extern "C" void EMSCRIPTEN_KEEPALIVE instantiate() {
};
instance = new ModuleInstance(*module, new JSExternalInterface());
+
+ // stack trace hooks
+ EM_ASM({
+ Module['outside']['extraStackTrace'] = function() {
+ return Pointer_stringify(Module['_interpreter_stack_trace']());
+ };
+ });
+}
+
+extern "C" int EMSCRIPTEN_KEEPALIVE interpreter_stack_trace() {
+ std::string stack = instance->printFunctionStack();
+ return (int)strdup(stack.c_str()); // XXX leak
}
// Does a call from js into an export of the module.
--
cgit v1.2.3