tooling: add just trace to make it easier to run with the env vars, small debug log changes

Author: alehander92

crates/tracer/src/lib.rs

@@ -46,7 +46,7 @@ impl WasmTracer {
     }
 
     pub fn load_local_variables(&mut self, address: usize) { // -> ???
-        println!("load_local_variables {address}");
+        // println!("load_local_variables {address}");
         // e.g. here we might call something like
         // some kind of check if we already have the info for the current context
         // let cached = TODO;
@@ -58,7 +58,7 @@ impl WasmTracer {
             self.info.push(format!("{}", self.index));
             self.index += 1;
         }
-        println!("{:?}", self.info);
+        // println!("{:?}", self.info);
     }
 }
 

crates/wasmi/src/engine/executor/instrs.rs

@@ -140,7 +140,7 @@ impl<'engine> Executor<'engine> {
                 // TODO: good way to take address
                 //let address = usize::from(self.ip.get());
                 let address = 0x000000010; // should be in the main subprogram >= low_pc
-                //std::println!("address of {:?}: {:?}", *self.ip.get(), address);
+                std::println!("address of {:?}: TODO", *self.ip.get());
                 // TODO: make this be a field with correct lifetime
                 tracer.load_local_variables(address);
 

justfile

@@ -8,3 +8,6 @@ dwarfdump wasm-path:
 dis wasm-path:
   # from binaryen
   wasm-dis {{wasm-path}}
+
+trace wasm-path:
+  env CODETRACER_WASMI_TRACING=1 CODETRACER_WASM_PATH=$(realpath {{wasm-path}}) target/debug/wasmi_cli wasm_test.wasm

wasm_test.c

@@ -1,4 +1,4 @@
 int main() {
     int x = 1;
-    int y = 2;
+    int y = 2 + x;
 }