Add trace_guest feature in hyperlight-wasm to allow enabling tracing guests

Signed-off-by: Doru Blânzeanu <[email protected]>

Author: dblnz

src/hyperlight_wasm/Cargo.toml

@@ -90,6 +90,7 @@ crashdump = ["hyperlight-host/crashdump"]
 gdb = ["hyperlight-host/gdb"]
 kvm = ["hyperlight-host/kvm"]
 mshv3 = ["hyperlight-host/mshv3"]
+trace_guest = ["hyperlight-host/trace_guest"]
 
 [[bench]]
 name = "benchmarks"

src/hyperlight_wasm/build.rs

@@ -144,6 +144,10 @@ fn build_wasm_runtime() -> PathBuf {
     if std::env::var("CARGO_FEATURE_GDB").is_ok() {
         cmd = cmd.arg("--features").arg("gdb");
     }
+    // Enable the "trace_guest" feature if the corresponding Cargo feature is enabled
+    if std::env::var("CARGO_FEATURE_TRACE_GUEST").is_ok() {
+        cmd = cmd.arg("--features").arg("trace_guest");
+    }
 
     let status = cmd
         .status()

src/wasm_runtime/Cargo.toml

@@ -28,4 +28,6 @@ reqwest =  {version = "0.12", default-features = false, features = ["blocking","
 [workspace] # indicate that this crate is not part of any workspace
 
 [features]
+default = []
 gdb = ["wasmtime/debug-builtins"]
+trace_guest = ["hyperlight-common/trace_guest", "hyperlight-guest/trace_guest", "hyperlight-guest-bin/trace_guest"]