add openwrt support

JerryScript-DCO-1.0-Signed-off-by: qdk0901 qdk0901@qq.com

Author: qdk0901

CMakeLists.txt

@@ -89,6 +89,11 @@ 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")
+ elseif("${PLATFORM}" STREQUAL "OPENWRT")
+  set(PLATFORM_EXT "LINUX")
+  set(EXTERNAL_BUILD FALSE)
+
+  option(STRIP_RELEASE_BINARY "Strip symbols from release binaries" ON)
  else()
   message(FATAL_ERROR "Platform '${PLATFORM}' is not supported")
  endif()

build/configs/toolchain_openwrt_mips.cmake

@@ -0,0 +1,21 @@
+# Copyright 2016 Samsung Electronics Co., Ltd.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set(CMAKE_SYSTEM_NAME Openwrt)
+set(CMAKE_SYSTEM_PROCESSOR mips)
+
+set(CMAKE_C_COMPILER mipsel-openwrt-linux-gcc)
+set(CMAKE_CXX_COMPILER mipsel-openwrt-linux-g++)
+# FIXME: This could break cross compilation, when the strip is not for the target architecture
+find_program(CMAKE_STRIP NAMES mipsel-openwrt-linux-strip strip)