import os import sys import string import platform def is_active(): return True def get_name(): return "Android" def can_build(): return ("ANDROID_NDK_ROOT" in os.environ) def get_opts(): return [ ('ANDROID_NDK_ROOT', 'Path to the Android NDK', os.environ.get("ANDROID_NDK_ROOT", 0)), ('ndk_platform', 'Target platform (android-, e.g. "android-18")', "android-18"), ('android_arch', 'Target architecture (armv7/armv6/arm64v8/x86)', "armv7"), ('android_neon', 'Enable NEON support (armv7 only)', "yes"), ('android_stl', 'Enable Android STL support (for modules)', "no") ] def get_flags(): return [ ('tools', 'no'), ] def create(env): tools = env['TOOLS'] if "mingw" in tools: tools.remove('mingw') if "applelink" in tools: tools.remove("applelink") env.Tool('gcc') return env.Clone(tools=tools) def configure(env): # Workaround for MinGW. See: # http://www.scons.org/wiki/LongCmdLinesOnWin32 if (os.name == "nt"): import subprocess def mySubProcess(cmdline, env): # print("SPAWNED : " + cmdline) startupinfo = subprocess.STARTUPINFO() startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW proc = subprocess.Popen(cmdline, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, startupinfo=startupinfo, shell=False, env=env) data, err = proc.communicate() rv = proc.wait() if rv: print("=====") print(err) print("=====") return rv def mySpawn(sh, escape, cmd, args, env): newargs = ' '.join(args[1:]) cmdline = cmd + " " + newargs rv = 0 if len(cmdline) > 32000 and cmd.endswith("ar"): cmdline = cmd + " " + args[1] + " " + args[2] + " " for i in range(3, len(args)): rv = mySubProcess(cmdline + args[i], env) if rv: break else: rv = mySubProcess(cmdline, env) return rv env['SPAWN'] = mySpawn ## Architecture if env['android_arch'] not in ['armv7', 'armv6', 'arm64v8', 'x86']: env['android_arch'] = 'armv7' neon_text = "" if env["android_arch"] == "armv7" and env['android_neon'] == 'yes': neon_text = " (with NEON)" print("Building for Android (" + env['android_arch'] + ")" + neon_text) can_vectorize = True if env['android_arch'] == 'x86': env['ARCH'] = 'arch-x86' env.extra_suffix = ".x86" + env.extra_suffix target_subpath = "x86-4.9" abi_subpath = "i686-linux-android" arch_subpath = "x86" env["x86_libtheora_opt_gcc"] = True elif env['android_arch'] == 'armv6': env['ARCH'] = 'arch-arm' env.extra_suffix = ".armv6" + env.extra_suffix target_subpath = "arm-linux-androideabi-4.9" abi_subpath = "arm-linux-androideabi" arch_subpath = "armeabi" can_vectorize = False elif env["android_arch"] == "armv7": env['ARCH'] = 'arch-arm' target_subpath = "arm-linux-androideabi-4.9" abi_subpath = "arm-linux-androideabi" arch_subpath = "armeabi-v7a" if env['android_neon'] == 'yes': env.extra_suffix = ".armv7.neon" + env.extra_suffix else: env.extra_suffix = ".armv7" + env.extra_suffix elif env["android_arch"] == "arm64v8": env['ARCH'] = 'arch-arm64' target_subpath = "aarch64-linux-android-4.9" abi_subpath = "aarch64-linux-android" arch_subpath = "arm64-v8a" env.extra_suffix = ".armv8" + env.extra_suffix ## Build type if (env["target"].startswith("release")): env.Append(LINKFLAGS=['-O2']) env.Append(CPPFLAGS=['-O2', '-DNDEBUG', '-ffast-math', '-funsafe-math-optimizations', '-fomit-frame-pointer']) if (can_vectorize): env.Append(CPPFLAGS=['-ftree-vectorize']) if (env["target"] == "release_debug"): env.Append(CPPFLAGS=['-DDEBUG_ENABLED']) elif (env["target"] == "debug"): env.Append(LINKFLAGS=['-O0']) env.Append(CPPFLAGS=['-O0', '-D_DEBUG', '-UNDEBUG', '-DDEBUG_ENABLED', '-DDEBUG_MEMORY_ENABLED', '-g', '-fno-limit-debug-info']) ## Compiler configuration env['SHLIBSUFFIX'] = '.so' if env['PLATFORM'] == 'win32': env.Tool('gcc') env.use_windows_spawn_fix() mt_link = True if (sys.platform.startswith("linux")): host_subpath = "linux-x86_64" elif (sys.platform.startswith("darwin")): host_subpath = "darwin-x86_64" elif (sys.platform.startswith('win')): if (platform.machine().endswith('64')): host_subpath = "windows-x86_64" if env["android_arch"] == "arm64v8": mt_link = False else: mt_link = False host_subpath = "windows" compiler_path = env["ANDROID_NDK_ROOT"] + "/toolchains/llvm/prebuilt/" + host_subpath + "/bin" gcc_toolchain_path = env["ANDROID_NDK_ROOT"] + "/toolchains/" + target_subpath + "/prebuilt/" + host_subpath tools_path = gcc_toolchain_path + "/" + abi_subpath + "/bin" # For Clang to find NDK tools in preference of those system-wide env.PrependENVPath('PATH', tools_path) env['CC'] = compiler_path + '/clang' env['CXX'] = compiler_path + '/clang++' env['AR'] = tools_path + "/ar" env['RANLIB'] = tools_path + "/ranlib" env['AS'] = tools_path + "/as" sysroot = env["ANDROID_NDK_ROOT"] + "/platforms/" + env['ndk_platform'] + "/" + env['ARCH'] common_opts = ['-fno-integrated-as', '-gcc-toolchain', gcc_toolchain_path] ## Compile flags env.Append(CPPFLAGS=["-isystem", sysroot + "/usr/include"]) env.Append(CPPFLAGS='-fpic -ffunction-sections -funwind-tables -fstack-protector-strong -fvisibility=hidden -fno-strict-aliasing'.split()) env.Append(CPPFLAGS='-DNO_STATVFS -DGLES2_ENABLED'.split()) env['neon_enabled'] = False if env['android_arch'] == 'x86': target_opts = ['-target', 'i686-none-linux-android'] # The NDK adds this if targeting API < 21, so we can drop it when Godot targets it at least env.Append(CPPFLAGS=['-mstackrealign']) elif env["android_arch"] == "armv6": target_opts = ['-target', 'armv6-none-linux-androideabi'] env.Append(CPPFLAGS='-D__ARM_ARCH_6__ -march=armv6 -mfpu=vfp -mfloat-abi=softfp'.split()) elif env["android_arch"] == "armv7": target_opts = ['-target', 'armv7-none-linux-androideabi'] env.Append(CPPFLAGS='-D__ARM_ARCH_7__ -D__ARM_ARCH_7A__ -march=armv7-a -mfloat-abi=softfp'.split()) if env['android_neon'] == 'yes': env['neon_enabled'] = True env.Append(CPPFLAGS=['-mfpu=neon', '-D__ARM_NEON__']) else: env.Append(CPPFLAGS=['-mfpu=vfpv3-d16']) elif env["android_arch"] == "arm64v8": target_opts = ['-target', 'aarch64-none-linux-android'] env.Append(CPPFLAGS=['-D__ARM_ARCH_8A__']) env.Append(CPPFLAGS=['-mfix-cortex-a53-835769']) env.Append(CPPFLAGS=target_opts) env.Append(CPPFLAGS=common_opts) if (env['android_stl'] == 'yes'): env.Append(CPPPATH=[env["ANDROID_NDK_ROOT"] + "/sources/cxx-stl/gnu-libstdc++/4.9/include"]) env.Append(CPPPATH=[env["ANDROID_NDK_ROOT"] + "/sources/cxx-stl/gnu-libstdc++/4.9/libs/" + arch_subpath + "/include"]) env.Append(LIBPATH=[env["ANDROID_NDK_ROOT"] + "/sources/cxx-stl/gnu-libstdc++/4.9/libs/" + arch_subpath]) env.Append(LIBS=["gnustl_static"]) else: env.Append(CXXFLAGS=['-fno-rtti', '-fno-exceptions', '-DNO_SAFE_CAST']) ## Link flags env['LINKFLAGS'] = ['-shared', '--sysroot=' + sysroot, '-Wl,--warn-shared-textrel'] if env["android_arch"] == "armv7": env.Append(LINKFLAGS='-Wl,--fix-cortex-a8'.split()) env.Append(LINKFLAGS='-Wl,--no-undefined -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now'.split()) env.Append(LINKFLAGS='-Wl,-soname,libgodot_android.so -Wl,--gc-sections'.split()) if mt_link: env.Append(LINKFLAGS=['-Wl,--threads']) env.Append(LINKFLAGS=target_opts) env.Append(LINKFLAGS=common_opts) env.Append(LIBPATH=[env["ANDROID_NDK_ROOT"] + '/toolchains/arm-linux-androideabi-4.9/prebuilt/' + host_subpath + '/lib/gcc/' + abi_subpath + '/4.9.x']) env.Append(LIBPATH=[env["ANDROID_NDK_ROOT"] + '/toolchains/arm-linux-androideabi-4.9/prebuilt/' + host_subpath + '/' + abi_subpath + '/lib']) env.Append(CPPPATH=['#platform/android']) env.Append(CPPFLAGS=['-DANDROID_ENABLED', '-DUNIX_ENABLED', '-DNO_FCNTL', '-DMPC_FIXED_POINT']) env.Append(LIBS=['OpenSLES', 'EGL', 'GLESv3', 'android', 'log', 'z', 'dl']) # TODO: Move that to opus module's config if("module_opus_enabled" in env and env["module_opus_enabled"] != "no"): if (env["android_arch"] == "armv6" or env["android_arch"] == "armv7"): env.Append(CFLAGS=["-DOPUS_ARM_OPT"]) env.opus_fixed_point = "yes"