add lua integration test (#109)

.circleci/config.yml

@@ -42,6 +42,7 @@ jobs:
           command: |
             sudo apt-get install -y cmake
       - run: make test
+      - run: make integration-tests
       - save_cache:
           paths:
             - /usr/local/cargo/registry

Makefile

@@ -23,7 +23,7 @@ install:
 
 integration-tests: release
 	echo "Running Integration Tests"
-	# Commented for now until we fix emscripten
+	./integration_tests/lua/test.sh
 	./integration_tests/nginx/test.sh
 
 lint:

integration_tests/lua/README.md

@@ -0,0 +1,9 @@
+# `lua` integration test
+
+
+This starts wasmer with the lua wasm file. The test asserts on
+the output of wasmer. Run test with: 
+
+```
+> ./integration_tests/lua/test.sh
+```

integration_tests/lua/test.sh

@@ -0,0 +1,15 @@
+#! /bin/bash
+
+nohup ./target/release/wasmer run examples/lua.wasm &
+sleep 3s
+
+if grep "Lua 5.4.0  Copyright (C) 1994-2018 Lua.org, PUC-Rio" ./nohup.out
+then
+    echo "lua integration test succeeded"
+    rm ./nohup.out
+    exit 0
+else
+    echo "lua integration test failed"
+    rm ./nohup.out
+    exit -1
+fi

lib/emscripten/src/jmp.rs

@@ -7,20 +7,19 @@ use wasmer_runtime_core::vm::Ctx;
 pub fn __setjmp(env_addr: u32, ctx: &mut Ctx) -> c_int {
     debug!("emscripten::__setjmp (setjmp)");
     unsafe {
-        unimplemented!()
+        // Rather than using the env as the holder of the jump buffer pointer,
-        //        // Rather than using the env as the holder of the jump buffer pointer,
+        // we use the environment address to store the index relative to jumps
-        //        // we use the environment address to store the index relative to jumps
+        // so the address of the jump it's outside the wasm memory itself.
-        //        // so the address of the jump it's outside the wasm memory itself.
+        let jump_index = emscripten_memory_pointer!(ctx.memory(0), env_addr) as *mut i8;
-        //        let jump_index = ctx.memory(0).as_ptr().add(env_addr as usize) as *mut i8;
+        // We create the jump buffer outside of the wasm memory
-        //        // We create the jump buffer outside of the wasm memory
+        let jump_buf: UnsafeCell<[u32; 27]> = UnsafeCell::new([0; 27]);
-        //        let jump_buf: UnsafeCell<[c_int; 27]> = UnsafeCell::new([0; 27]);
+        let jumps = &mut get_emscripten_data(ctx).jumps;
-        //        let jumps = &mut get_emscripten_data(ctx).jumps;
+        let result = setjmp(jump_buf.get() as _);
-        //        let result = setjmp(jump_buf.get() as _);
+        // We set the jump index to be the last value of jumps
-        //        // We set the jump index to be the last value of jumps
+        *jump_index = jumps.len() as _;
-        //        *jump_index = jumps.len() as _;
+        // We hold the reference of the jump buffer
-        //        // We hold the reference of the jump buffer
+        jumps.push(jump_buf);
-        //        jumps.push(jump_buf);
+        result
-        //        result
     }
 }