toolchain-android-r5.cmake revision 3fdee359c9eee4d6c1d823b23f7f64631b5945f8 
1# Platform defines.
2set(CMAKE_SYSTEM_NAME		Linux)
3set(CMAKE_SYSTEM_PROCESSOR	arm-linux-androideabi)
4
5set_property(GLOBAL PROPERTY TARGET_SUPPORTS_SHARED_LIBS TRUE)
6
7set(CMAKE_CROSSCOMPILING 1)
8
9# dE defines
10set(DE_CPU		"DE_CPU_ARM")
11set(DE_OS		"DE_OS_ANDROID")
12set(DE_COMPILER	"DE_COMPILER_GCC")
13if (NOT DEFINED DE_ANDROID_API)
14	set(DE_ANDROID_API 5)
15endif ()
16
17# NDK installation path
18set(ANDROID_NDK_PATH	"/opt/android-ndk-r5b"	CACHE STRING "Android NDK installation path")
19set(ANDROID_NDK_HOST_OS	"linux-x86"				CACHE STRING "Android ndk host os")
20set(ANDROID_ABI			"armeabi-v7a"			CACHE STRING "Android ABI")
21set(ANDROID_NDK_TARGET	"android-${DE_ANDROID_API}")
22
23# \todo [pyry] Detect host type
24set(ANDROID_CC_PATH	"${ANDROID_NDK_PATH}/toolchains/arm-linux-androideabi-4.4.3/prebuilt/${ANDROID_NDK_HOST_OS}/")
25set(CROSS_COMPILE	"${ANDROID_CC_PATH}bin/arm-linux-androideabi-")
26set(ANDROID_SYSROOT	"${ANDROID_NDK_PATH}/platforms/${ANDROID_NDK_TARGET}/arch-arm")
27
28include(CMakeForceCompiler)
29
30if (ANDROID_NDK_HOST_OS STREQUAL "linux-x86" OR
31	ANDROID_NDK_HOST_OS STREQUAL "darwin-x86")
32	cmake_force_c_compiler("${CROSS_COMPILE}gcc"		GNU)
33	cmake_force_cxx_compiler("${CROSS_COMPILE}g++"		GNU)
34elseif (ANDROID_NDK_HOST_OS STREQUAL "windows")
35	cmake_force_c_compiler("${CROSS_COMPILE}gcc.exe"	GNU)
36	cmake_force_cxx_compiler("${CROSS_COMPILE}g++.exe"	GNU)
37else ()
38	message(FATAL_ERROR "Unknown ANDROID_NDK_HOST_OS")
39endif ()
40
41set(CMAKE_SHARED_LIBRARY_C_FLAGS "")
42set(CMAKE_SHARED_LIBRARY_CXX_FLAGS "")
43
44# crtbegin_so.o & crtend_so.o \todo [pyry] Is there some special CMake variable for these?
45if (DE_ANDROID_API GREATER 8)
46	set(CRTBEGIN_SO	"${ANDROID_SYSROOT}/usr/lib/crtbegin_so.o")
47	set(CRTEND_SO	"${ANDROID_SYSROOT}/usr/lib/crtend_so.o")
48endif ()
49
50set(CMAKE_C_CREATE_SHARED_LIBRARY
51  "<CMAKE_C_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_LIBRARY_C_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>")
52set(CMAKE_CXX_CREATE_SHARED_LIBRARY
53  "<CMAKE_CXX_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_LIBRARY_CXX_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS> -o <TARGET> ${CRTBEGIN_SO} <OBJECTS> <LINK_LIBRARIES> ${CRTEND_SO}")
54
55# Search libs and include files (but not programs) from toolchain dir.
56set(CMAKE_FIND_ROOT_PATH
57	"${ANDROID_NDK_PATH}/sources/cxx-stl/gnu-libstdc++/libs/${ANDROID_ABI}"
58	"${ANDROID_CC_PATH}arm-linux-androideabi"
59	${ANDROID_SYSROOT}
60	)
61set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
62set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
63set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
64
65set(NDK_FLAGS "--sysroot=${ANDROID_SYSROOT} -fpic -mfloat-abi=softfp -Os -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__ -DANDROID -D__ANDROID__ -D__STDC_INT64__")
66
67if (ANDROID_ABI STREQUAL "armeabi-v7a")
68	# For armeabi-v7a
69	set(NDK_FLAGS "${NDK_FLAGS} -march=armv7-a -mfpu=vfp")
70
71elseif (ANDROID_ABI STREQUAL "armeabi")
72	# For armeabi (ARMv5TE)
73	set(NDK_FLAGS "${NDK_FLAGS} -march=armv5te")
74
75else ()
76	message(FATAL_ERROR "Unknown Android ABI \"${ANDROID_ABI}\"")
77endif ()
78
79# \note Hacky workaround for flags...
80set(CMAKE_C_FLAGS	"${NDK_FLAGS}" CACHE STRING "" FORCE)
81set(CMAKE_CXX_FLAGS	"${NDK_FLAGS} -I${ANDROID_NDK_PATH}/sources/cxx-stl/gnu-libstdc++/include -I${ANDROID_NDK_PATH}/sources/cxx-stl/gnu-libstdc++/libs/${ANDROID_ABI}/include" CACHE STRING "" FORCE)
82set(CMAKE_SHARED_LINKER_FLAGS "-nostdlib -Wl,-shared,-Bsymbolic -Wl,--no-undefined -Wl,--fix-cortex-a" CACHE STRING "" FORCE)
83