Implement memory access bound check with hardware trap for 64-bit pla…

…tforms (bytecodealliance#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

README.md

@@ -53,11 +53,13 @@ Following platforms are supported. Refer to [WAMR porting guide](./doc/port_wamr
 
 - [Linux](./doc/build_wamr.md#linux), [Zephyr](./doc/build_wamr.md#zephyr), [MacOS](./doc/build_wamr.md#macos), [VxWorks](./doc/build_wamr.md#vxworks), [AliOS-Things](./doc/build_wamr.md#alios-things), [Intel Software Guard Extention (Linux)](./doc/build_wamr.md#linux-sgx-intel-software-guard-extention), [Android](./doc/build_wamr.md#android)
 
+### Build iwasm VM core (mini product)
 
+WAMR supports building the iwasm VM core only (no app framework) to the mini product. The WAMR mini product takes the WASM application file name or AoT file name as input and then executes it. For the detailed procedure, please see **[build WAMR VM core](./doc/build_wamr.md)** and **[build and run WASM application](./doc/build_wasm_app.md)**. Also we can click the link of each platform above to see how to build iwasm on it.
 
 ### Build wamrc AoT compiler
 
-Execute following commands to build **wamrc** compiler:
+Both wasm binary file and AoT file are supported by iwasm. The wamrc AoT compiler is to compile wasm binary file to AoT file which can also be run by iwasm. Execute following commands to build **wamrc** compiler:
 
 ```shell
 cd wamr-compiler
@@ -69,12 +71,6 @@ ln -s {current path}/wamrc /usr/bin/wamrc
 ```
 For MacOS, you should replace `cmake ..` with `cmake -DWAMR_BUILD_PLATFORM=darwin ..`.
 
-### Build the mini product
-
-WAMR supports building the iwasm VM core only (no app framework) to the mini product.  The WAMR mini product takes the WASM application file name as input and then executes it. For the detailed procedure, see **[build WAMR VM core](./doc/build_wamr.md)** and **[build and run WASM application](./doc/build_wasm_app.md)**.
-
-
-
 Application framework
 ===================================
 

build-scripts/config_common.cmake

@@ -158,3 +158,8 @@ if (WAMR_BUILD_MINI_LOADER EQUAL 1)
 else ()
   add_definitions (-DWASM_ENABLE_MINI_LOADER=0)
 endif ()
+if (WAMR_DISABLE_HW_BOUND_CHECK EQUAL 1)
+  add_definitions (-DWASM_DISABLE_HW_BOUND_CHECK=1)
+  message ("     Hardware boundary check disabled")
+endif ()
+

core/config.h

@@ -149,6 +149,12 @@ enum {
 #define WASM_ENABLE_MINI_LOADER 0
 #endif
 
+/* Disable boundary check with hardware trap or not,
+ * enable it by default if it is supported */
+#ifndef WASM_DISABLE_HW_BOUND_CHECK
+#define WASM_DISABLE_HW_BOUND_CHECK 0
+#endif
+
 /* Heap and stack profiling */
 #define BH_ENABLE_MEMORY_PROFILING 0
 
@@ -199,8 +205,8 @@ enum {
 
 /* Default/min/max stack size of each app thread */
 #if !defined(BH_PLATFORM_ZEPHYR) && !defined(BH_PLATFORM_ALIOS_THINGS)
-#define APP_THREAD_STACK_SIZE_DEFAULT (20 * 1024)
-#define APP_THREAD_STACK_SIZE_MIN (16 * 1024)
+#define APP_THREAD_STACK_SIZE_DEFAULT (32 * 1024)
+#define APP_THREAD_STACK_SIZE_MIN (24 * 1024)
 #define APP_THREAD_STACK_SIZE_MAX (256 * 1024)
 #else
 #define APP_THREAD_STACK_SIZE_DEFAULT (6 * 1024)