Implement memory access bound check with hardware trap for 64-bit platforms (#293)

Also implement native stack overflow check with hardware trap for 64-bit platforms
Refine classic interpreter and fast interpreter to improve performance
Update document

core/iwasm/common/wasm_exec_env.c

@@ -61,6 +61,15 @@ fail1:
 void
 wasm_exec_env_destroy_internal(WASMExecEnv *exec_env)
 {
+#ifdef OS_ENABLE_HW_BOUND_CHECK
+    WASMJmpBuf *jmpbuf = exec_env->jmpbuf_stack_top;
+    WASMJmpBuf *jmpbuf_prev;
+    while (jmpbuf) {
+        jmpbuf_prev = jmpbuf->prev;
+        wasm_runtime_free(jmpbuf);
+        jmpbuf = jmpbuf_prev;
+    }
+#endif
 #if WASM_ENABLE_THREAD_MGR != 0
     os_mutex_destroy(&exec_env->wait_lock);
     os_cond_destroy(&exec_env->wait_cond);
@@ -121,7 +130,6 @@ wasm_exec_env_set_thread_info(WASMExecEnv *exec_env)
     exec_env->handle = os_self_thread();
     exec_env->native_stack_boundary = os_thread_get_stack_boundary()
                                       + RESERVED_BYTES_TO_NATIVE_STACK_BOUNDARY;
-
 }
 
 #if WASM_ENABLE_THREAD_MGR != 0
@@ -136,4 +144,27 @@ wasm_exec_env_set_thread_arg(WASMExecEnv *exec_env, void *thread_arg)
 {
     exec_env->thread_arg = thread_arg;
 }
-#endif
+#endif
+
+#ifdef OS_ENABLE_HW_BOUND_CHECK
+void
+wasm_exec_env_push_jmpbuf(WASMExecEnv *exec_env, WASMJmpBuf *jmpbuf)
+{
+    jmpbuf->prev = exec_env->jmpbuf_stack_top;
+    exec_env->jmpbuf_stack_top = jmpbuf;
+}
+
+WASMJmpBuf *
+wasm_exec_env_pop_jmpbuf(WASMExecEnv *exec_env)
+{
+    WASMJmpBuf *stack_top = exec_env->jmpbuf_stack_top;
+
+    if (stack_top) {
+        exec_env->jmpbuf_stack_top = stack_top->prev;
+        return stack_top;
+    }
+
+    return NULL;
+}
+#endif
+

core/iwasm/common/wasm_exec_env.h

@@ -22,6 +22,13 @@ struct WASMInterpFrame;
 typedef struct WASMCluster WASMCluster;
 #endif
 
+#ifdef OS_ENABLE_HW_BOUND_CHECK
+typedef struct WASMJmpBuf {
+    struct WASMJmpBuf *prev;
+    korp_jmpbuf jmpbuf;
+} WASMJmpBuf;
+#endif
+
 /* Execution environment */
 typedef struct WASMExecEnv {
     /* Next thread's exec env of a WASM module instance. */
@@ -82,6 +89,10 @@ typedef struct WASMExecEnv {
     BlockAddr block_addr_cache[BLOCK_ADDR_CACHE_SIZE][BLOCK_ADDR_CONFLICT_SIZE];
 #endif
 
+#ifdef OS_ENABLE_HW_BOUND_CHECK
+    WASMJmpBuf *jmpbuf_stack_top;
+#endif
+
     /* The WASM stack size */
     uint32 wasm_stack_size;
 
@@ -207,6 +218,14 @@ void
 wasm_exec_env_set_thread_arg(WASMExecEnv *exec_env, void *thread_arg);
 #endif
 
+#ifdef OS_ENABLE_HW_BOUND_CHECK
+void
+wasm_exec_env_push_jmpbuf(WASMExecEnv *exec_env, WASMJmpBuf *jmpbuf);
+
+WASMJmpBuf *
+wasm_exec_env_pop_jmpbuf(WASMExecEnv *exec_env);
+#endif
+
 #ifdef __cplusplus
 }
 #endif

core/iwasm/common/wasm_runtime_common.c

@@ -120,9 +120,24 @@ wasm_runtime_env_init()
         goto fail5;
     }
 #endif
+
+#if WASM_ENABLE_AOT != 0
+#ifdef OS_ENABLE_HW_BOUND_CHECK
+    if (!aot_signal_init()) {
+        goto fail6;
+    }
+#endif
+#endif
+
     return true;
 
+#if WASM_ENABLE_AOT != 0
+#ifdef OS_ENABLE_HW_BOUND_CHECK
+fail6:
+#endif
+#endif
 #if WASM_ENABLE_THREAD_MGR != 0
+    thread_manager_destroy();
 fail5:
 #endif
 #if WASM_ENABLE_SHARED_MEMORY
@@ -170,6 +185,12 @@ wasm_runtime_init()
 void
 wasm_runtime_destroy()
 {
+#if WASM_ENABLE_AOT != 0
+#ifdef OS_ENABLE_HW_BOUND_CHECK
+    aot_signal_destroy();
+#endif
+#endif
+
     /* runtime env destroy */
 #if WASM_ENABLE_MULTI_MODULE
     wasm_runtime_destroy_loading_module_list();