trace support for Wasm programs</h3><p>You can see <code>strace</code> equivalent logs emitted by Envoy. With Istio proxy’s component log level <code>wasm:trace</code>, you can observe all the system calls and Proxy-Wasm ABI calls that go across the boundary between Wasm virtual machines and Envoy. The following is an example of such an <code>strace</code> log stream:</p><pre><code class=language-plain data-expandlinks=true data-repo=istio>[host-&gt;vm] proxy_on_context_create(2, 1)
[host&lt;-vm] proxy_on