Add Android NDK r11 toolchain as new default

New NDK r11 toolchain fixes libc++ on x86 enabling glslang support in
Android builds.

Change-Id: I5141b97f3152cfb1420a116cae40d671477ed254
diff --git a/android/scripts/common.py b/android/scripts/common.py
index 777d23f..1680b41 100644
--- a/android/scripts/common.py
+++ b/android/scripts/common.py
@@ -241,8 +241,8 @@
 
 def selectNDKPath ():
 	candidates =  [
-		os.path.expanduser("~/android-ndk-r10e"),
-		"C:/android/android-ndk-r10e",
+		os.path.expanduser("~/android-ndk-r11"),
+		"C:/android/android-ndk-r11",
 		os.environ.get("ANDROID_NDK_PATH", None), # If not defined, return None
 	]
 
@@ -262,7 +262,7 @@
 # NDK paths
 ANDROID_NDK_PATH				= selectNDKPath()
 ANDROID_NDK_HOST_OS				= getNDKHostOsName(ANDROID_NDK_PATH)
-ANDROID_NDK_TOOLCHAIN_VERSION	= "r10e" # Toolchain file is selected based on this
+ANDROID_NDK_TOOLCHAIN_VERSION	= "r11" # Toolchain file is selected based on this
 
 # Native code build settings
 CMAKE_GENERATOR			= selectByOS({
diff --git a/external/glslang/CMakeLists.txt b/external/glslang/CMakeLists.txt
index 834190c..238cb91 100644
--- a/external/glslang/CMakeLists.txt
+++ b/external/glslang/CMakeLists.txt
@@ -27,7 +27,7 @@
 	set(BISON_FOUND ON)
 endif ()
 
-if (BISON_FOUND AND EXISTS ${GLSLANG_ABS_PATH}/glslang/GenericCodeGen/CodeGen.cpp AND NOT DE_OS_IS_ANDROID)
+if (BISON_FOUND AND EXISTS ${GLSLANG_ABS_PATH}/glslang/GenericCodeGen/CodeGen.cpp)
 	message(STATUS "glslang found; building with DEQP_SUPPORT_GLSLANG")
 
 	include_directories(
diff --git a/framework/delibs/cmake/toolchain-android-r11.cmake b/framework/delibs/cmake/toolchain-android-r11.cmake
new file mode 100644
index 0000000..b74781e
--- /dev/null
+++ b/framework/delibs/cmake/toolchain-android-r11.cmake
@@ -0,0 +1,173 @@
+# Platform defines.
+set(CMAKE_SYSTEM_NAME Linux)
+
+set_property(GLOBAL PROPERTY TARGET_SUPPORTS_SHARED_LIBS TRUE)
+
+set(CMAKE_CROSSCOMPILING 1)
+
+# NDK installation path
+if (NOT DEFINED ANDROID_NDK_PATH)
+	message(FATAL_ERROR "Please provide ANDROID_NDK_PATH")
+endif ()
+
+# Host os (for toolchain binaries)
+if (NOT DEFINED ANDROID_NDK_HOST_OS)
+	message(STATUS "Warning: ANDROID_NDK_HOST_OS is not set")
+	if (WIN32)
+		set(ANDROID_NDK_HOST_OS "windows")
+	elseif (UNIX)
+		set(ANDROID_NDK_HOST_OS "linux-86")
+	endif ()
+endif ()
+
+# Compile target
+set(ANDROID_ABI			"armeabi-v7a"			CACHE STRING "Android ABI")
+set(ANDROID_NDK_TARGET	"android-${DE_ANDROID_API}")
+
+# dE defines
+set(DE_OS "DE_OS_ANDROID")
+
+if (NOT DEFINED DE_COMPILER)
+	set(DE_COMPILER	"DE_COMPILER_CLANG")
+endif ()
+
+if (NOT DEFINED DE_ANDROID_API)
+	set(DE_ANDROID_API 9)
+endif ()
+
+set(COMMON_C_FLAGS		"-D__STDC_INT64__")
+set(COMMON_CXX_FLAGS	"${COMMON_C_FLAGS} -frtti -fexceptions")
+set(COMMON_LINKER_FLAGS	"")
+set(ARM_C_FLAGS			"-D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__ ")
+
+# ABI-dependent bits
+if (ANDROID_ABI STREQUAL "x86")
+	set(DE_CPU					"DE_CPU_X86")
+	set(CMAKE_SYSTEM_PROCESSOR	i686-android-linux)
+
+	set(ANDROID_CC_PATH			"${ANDROID_NDK_PATH}/toolchains/x86-4.9/prebuilt/${ANDROID_NDK_HOST_OS}/")
+	set(CROSS_COMPILE			"${ANDROID_CC_PATH}bin/i686-linux-android-")
+	set(ANDROID_SYSROOT			"${ANDROID_NDK_PATH}/platforms/${ANDROID_NDK_TARGET}/arch-x86")
+
+	set(CMAKE_FIND_ROOT_PATH
+		"${ANDROID_CC_PATH}i686-linux-android"
+		"${ANDROID_CC_PATH}lib/gcc/i686-linux-android/4.9"
+		)
+
+	set(TARGET_C_FLAGS			"-march=i686 -msse3 -mstackrealign -mfpmath=sse")
+	set(TARGET_LINKER_FLAGS		"")
+	set(LLVM_TRIPLE				"i686-none-linux-android")
+
+elseif (ANDROID_ABI STREQUAL "armeabi" OR
+		ANDROID_ABI STREQUAL "armeabi-v7a")
+	set(DE_CPU					"DE_CPU_ARM")
+	set(CMAKE_SYSTEM_PROCESSOR	arm-linux-androideabi)
+
+	set(ANDROID_CC_PATH	"${ANDROID_NDK_PATH}/toolchains/arm-linux-androideabi-4.9/prebuilt/${ANDROID_NDK_HOST_OS}/")
+	set(CROSS_COMPILE	"${ANDROID_CC_PATH}bin/arm-linux-androideabi-")
+	set(ANDROID_SYSROOT	"${ANDROID_NDK_PATH}/platforms/${ANDROID_NDK_TARGET}/arch-arm")
+
+	if (ANDROID_ABI STREQUAL "armeabi-v7a")
+		set(TARGET_C_FLAGS		"${ARM_C_FLAGS} -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=softfp")
+		set(TARGET_LINKER_FLAGS	"-Wl,--fix-cortex-a8 -march=armv7-a")
+		set(LLVM_TRIPLE			"armv7-none-linux-androideabi")
+
+	else () # armeabi
+		set(TARGET_C_FLAGS		"${ARM_C_FLAGS} -march=armv5te -mfloat-abi=softfp")
+		set(TARGET_LINKER_FLAGS	"-Wl,--fix-cortex-a8 -march=armv5te")
+		set(LLVM_TRIPLE			"armv5te-none-linux-androideabi")
+	endif ()
+
+	set(CMAKE_FIND_ROOT_PATH
+		"${ANDROID_CC_PATH}arm-linux-androideabi"
+		)
+
+elseif (ANDROID_ABI STREQUAL "arm64-v8a")
+	set(DE_CPU					"DE_CPU_ARM_64")
+	set(CMAKE_SYSTEM_PROCESSOR	aarch64-linux-android)
+	set(CMAKE_SIZEOF_VOID_P		8)
+
+	set(ANDROID_CC_PATH	"${ANDROID_NDK_PATH}/toolchains/aarch64-linux-android-4.9/prebuilt/${ANDROID_NDK_HOST_OS}/")
+	set(CROSS_COMPILE	"${ANDROID_CC_PATH}bin/aarch64-linux-android-")
+	set(ANDROID_SYSROOT	"${ANDROID_NDK_PATH}/platforms/${ANDROID_NDK_TARGET}/arch-arm64")
+
+	set(CMAKE_FIND_ROOT_PATH
+		"${ANDROID_CC_PATH}arm-linux-androideabi"
+		)
+
+	set(TARGET_C_FLAGS		"-march=armv8-a")
+	set(TARGET_LINKER_FLAGS	"-Wl,--fix-cortex-a53-835769 -Wl,--fix-cortex-a53-835769 -march=armv8-a")
+	set(LLVM_TRIPLE			"aarch64-none-linux-android")
+
+	if (DE_COMPILER STREQUAL "DE_COMPILER_GCC")
+		set(TARGET_C_FLAGS "${TARGET_C_FLAGS} -mabi=lp64")
+	endif ()
+
+else ()
+	message(FATAL_ERROR "Unknown ABI \"${ANDROID_ABI}\"")
+endif ()
+
+# Use LLVM libc++ for full C++11 support
+set(ANDROID_CXX_LIBRARY		"${ANDROID_NDK_PATH}/sources/cxx-stl/llvm-libc++/libs/${ANDROID_ABI}/libc++_static.a")
+set(CXX_INCLUDES			"-I${ANDROID_NDK_PATH}/sources/cxx-stl/llvm-libc++/libcxx/include")
+set(CMAKE_FIND_ROOT_PATH	"" ${CMAKE_FIND_ROOT_PATH})
+
+set(CMAKE_FIND_ROOT_PATH ${CMAKE_FIND_ROOT_PATH} ${ANDROID_SYSROOT})
+
+include(CMakeForceCompiler)
+
+if (DE_COMPILER STREQUAL "DE_COMPILER_GCC")
+	if (ANDROID_NDK_HOST_OS STREQUAL "linux-x86" OR
+		ANDROID_NDK_HOST_OS STREQUAL "linux-x86_64" OR
+		ANDROID_NDK_HOST_OS STREQUAL "darwin-x86")
+		cmake_force_c_compiler("${CROSS_COMPILE}gcc"		GNU)
+		cmake_force_cxx_compiler("${CROSS_COMPILE}g++"		GNU)
+	elseif (ANDROID_NDK_HOST_OS STREQUAL "windows")
+		cmake_force_c_compiler("${CROSS_COMPILE}gcc.exe"	GNU)
+		cmake_force_cxx_compiler("${CROSS_COMPILE}g++.exe"	GNU)
+	else ()
+		message(FATAL_ERROR "Unknown ANDROID_NDK_HOST_OS")
+	endif ()
+
+	set(TARGET_C_FLAGS		"-mandroid ${TARGET_C_FLAGS}")
+
+elseif (DE_COMPILER STREQUAL "DE_COMPILER_CLANG")
+	set(LLVM_PATH "${ANDROID_NDK_PATH}/toolchains/llvm/prebuilt/${ANDROID_NDK_HOST_OS}/")
+
+	if (ANDROID_NDK_HOST_OS STREQUAL "linux-x86" OR
+		ANDROID_NDK_HOST_OS STREQUAL "linux-x86_64" OR
+		ANDROID_NDK_HOST_OS STREQUAL "darwin-x86" OR
+		ANDROID_NDK_HOST_OS STREQUAL "darwin-x86_64")
+		cmake_force_c_compiler("${LLVM_PATH}bin/clang"			Clang)
+		cmake_force_cxx_compiler("${LLVM_PATH}bin/clang++"		Clang)
+		set(CMAKE_AR "${CROSS_COMPILE}ar" CACHE FILEPATH "Archiver")
+		set(CMAKE_RANLIB "${CROSS_COMPILE}ranlib" CACHE FILEPATH "Indexer")
+
+	elseif (ANDROID_NDK_HOST_OS STREQUAL "windows" OR
+			ANDROID_NDK_HOST_OS STREQUAL "windows-x86_64")
+		cmake_force_c_compiler("${LLVM_PATH}bin/clang.exe"		Clang)
+		cmake_force_cxx_compiler("${LLVM_PATH}bin/clang++.exe"	Clang)
+		set(CMAKE_AR "${CROSS_COMPILE}ar.exe" CACHE FILEPATH "Archiver")
+		set(CMAKE_RANLIB "${CROSS_COMPILE}ranlib.exe" CACHE FILEPATH "Indexer")
+
+	else ()
+		message(FATAL_ERROR "Unknown ANDROID_NDK_HOST_OS")
+	endif ()
+
+	set(TARGET_C_FLAGS		"-target ${LLVM_TRIPLE} -gcc-toolchain ${ANDROID_CC_PATH} ${TARGET_C_FLAGS}")
+	set(TARGET_LINKER_FLAGS	"-target ${LLVM_TRIPLE} -gcc-toolchain ${ANDROID_CC_PATH} ${TARGET_LINKER_FLAGS}")
+
+endif ()
+
+set(CMAKE_SHARED_LIBRARY_C_FLAGS	"")
+set(CMAKE_SHARED_LIBRARY_CXX_FLAGS	"")
+
+set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
+
+# \note Without CACHE STRING FORCE cmake ignores these.
+set(CMAKE_C_FLAGS				"--sysroot=${ANDROID_SYSROOT} ${COMMON_C_FLAGS} ${TARGET_C_FLAGS}" CACHE STRING "" FORCE)
+set(CMAKE_CXX_FLAGS				"--sysroot=${ANDROID_SYSROOT} ${COMMON_CXX_FLAGS} ${TARGET_C_FLAGS} ${CXX_INCLUDES} -I${ANDROID_NDK_PATH}/sources/android/support/include" CACHE STRING "" FORCE)
+set(CMAKE_SHARED_LINKER_FLAGS	"-nodefaultlibs -Wl,-shared,-Bsymbolic -Wl,--no-undefined ${COMMON_LINKER_FLAGS} ${TARGET_LINKER_FLAGS}" CACHE STRING "" FORCE)
+set(CMAKE_EXE_LINKER_FLAGS		"-nodefaultlibs ${COMMON_LINKER_FLAGS} ${TARGET_LINKER_FLAGS}" CACHE STRING "" FORCE)