Add heap size limit

to solve #342

JerryScript-DCO-1.0-Signed-off-by: Ruben Ayrapetyan [email protected]
JerryScript-DCO-1.0-Signed-off-by: SaeHie Park [email protected]

Author: seanshpark

CMakeLists.txt

@@ -83,6 +83,7 @@ project (Jerry CXX C ASM)
 
   set(EXTERNAL_LIBC_INTERFACE "UNDEFINED" CACHE STRING "Path to external libc include directory")
   set(EXTERNAL_LIBS_INTERFACE "UNDEFINED" CACHE STRING "Path to external libraries' include directory")
+  set(EXTERNAL_MEM_HEAP_SIZE_KB "256" CACHE STRING "Size of memory heap, in kilobytes")
  else()
   message(FATAL_ERROR "Platform '${PLATFORM}' is not supported")
  endif()

jerry-core/CMakeLists.txt

@@ -88,6 +88,10 @@ project (JerryCore CXX C ASM)
     math(EXPR MEM_HEAP_AREA_SIZE_16K "16 * 1024")
     set(DEFINES_JERRY_MCU_STM32F4 CONFIG_MEM_HEAP_AREA_SIZE=${MEM_HEAP_AREA_SIZE_16K})
 
+  # External
+   math(EXPR MEM_HEAP_AREA_SIZE_EXTERNAL "${EXTERNAL_MEM_HEAP_SIZE_KB} * 1024")
+   set(DEFINES_JERRY_EXTERNAL CONFIG_MEM_HEAP_AREA_SIZE=${MEM_HEAP_AREA_SIZE_EXTERNAL})
+
 # Include directories
  set(INCLUDE_CORE
      ${CMAKE_SOURCE_DIR}/jerry-core

jerry-core/config.h

@@ -53,6 +53,8 @@
  */
 #ifndef CONFIG_MEM_HEAP_AREA_SIZE
 # define CONFIG_MEM_HEAP_AREA_SIZE (256 * 1024)
+#elif CONFIG_MEM_HEAP_AREA_SIZE > (256 * 1024)
+# error "Currently, maximum 256 kilobytes heap size is supported"
 #endif /* !CONFIG_MEM_HEAP_AREA_SIZE */
 
 /**