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			305 lines
		
	
	
	
		
			11 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			305 lines
		
	
	
	
		
			11 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
import os
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import sys
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from methods import detect_darwin_sdk_path, get_compiler_version, is_vanilla_clang
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from platform_methods import detect_arch
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from typing import TYPE_CHECKING
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if TYPE_CHECKING:
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    from SCons import Environment
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def get_name():
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    return "macOS"
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def can_build():
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    if sys.platform == "darwin" or ("OSXCROSS_ROOT" in os.environ):
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        return True
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    return False
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def get_opts():
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    from SCons.Variables import BoolVariable, EnumVariable
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    return [
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        ("osxcross_sdk", "OSXCross SDK version", "darwin16"),
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        ("MACOS_SDK_PATH", "Path to the macOS SDK", ""),
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        ("vulkan_sdk_path", "Path to the Vulkan SDK", ""),
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        EnumVariable("macports_clang", "Build using Clang from MacPorts", "no", ("no", "5.0", "devel")),
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        BoolVariable("use_ubsan", "Use LLVM/GCC compiler undefined behavior sanitizer (UBSAN)", False),
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        BoolVariable("use_asan", "Use LLVM/GCC compiler address sanitizer (ASAN)", False),
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        BoolVariable("use_tsan", "Use LLVM/GCC compiler thread sanitizer (TSAN)", False),
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        BoolVariable("use_coverage", "Use instrumentation codes in the binary (e.g. for code coverage)", False),
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        ("angle_libs", "Path to the ANGLE static libraries", ""),
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    ]
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def get_doc_classes():
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    return [
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        "EditorExportPlatformMacOS",
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    ]
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def get_doc_path():
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    return "doc_classes"
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def get_flags():
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    return [
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        ("arch", detect_arch()),
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        ("use_volk", False),
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    ]
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def get_mvk_sdk_path():
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    def int_or_zero(i):
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        try:
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            return int(i)
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        except:
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            return 0
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    def ver_parse(a):
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        return [int_or_zero(i) for i in a.split(".")]
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    dirname = os.path.expanduser("~/VulkanSDK")
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    if not os.path.exists(dirname):
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        return ""
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    ver_num = ver_parse("0.0.0.0")
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    files = os.listdir(dirname)
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    lib_name_out = dirname
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    for file in files:
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        if os.path.isdir(os.path.join(dirname, file)):
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            ver_comp = ver_parse(file)
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            if ver_comp > ver_num:
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                # Try new SDK location.
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                lib_name = os.path.join(
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                    os.path.join(dirname, file), "macOS/lib/MoltenVK.xcframework/macos-arm64_x86_64/"
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                )
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                if os.path.isfile(os.path.join(lib_name, "libMoltenVK.a")):
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                    ver_num = ver_comp
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                    lib_name_out = lib_name
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                else:
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                    # Try old SDK location.
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                    lib_name = os.path.join(
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                        os.path.join(dirname, file), "MoltenVK/MoltenVK.xcframework/macos-arm64_x86_64/"
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                    )
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                    if os.path.isfile(os.path.join(lib_name, "libMoltenVK.a")):
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                        ver_num = ver_comp
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                        lib_name_out = lib_name
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    return lib_name_out
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def configure(env: "Environment"):
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    # Validate arch.
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    supported_arches = ["x86_64", "arm64"]
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    if env["arch"] not in supported_arches:
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        print(
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            'Unsupported CPU architecture "%s" for macOS. Supported architectures are: %s.'
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            % (env["arch"], ", ".join(supported_arches))
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        )
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        sys.exit()
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    ## Build type
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    if env["target"] == "template_release":
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        if env["arch"] != "arm64":
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            env.Prepend(CCFLAGS=["-msse2"])
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    elif env.dev_build:
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        env.Prepend(LINKFLAGS=["-Xlinker", "-no_deduplicate"])
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    ## Compiler configuration
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    # Save this in environment for use by other modules
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    if "OSXCROSS_ROOT" in os.environ:
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        env["osxcross"] = True
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    # CPU architecture.
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    if env["arch"] == "arm64":
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        print("Building for macOS 11.0+.")
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        env.Append(ASFLAGS=["-arch", "arm64", "-mmacosx-version-min=11.0"])
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        env.Append(CCFLAGS=["-arch", "arm64", "-mmacosx-version-min=11.0"])
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        env.Append(LINKFLAGS=["-arch", "arm64", "-mmacosx-version-min=11.0"])
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    elif env["arch"] == "x86_64":
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        print("Building for macOS 10.13+.")
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        env.Append(ASFLAGS=["-arch", "x86_64", "-mmacosx-version-min=10.13"])
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        env.Append(CCFLAGS=["-arch", "x86_64", "-mmacosx-version-min=10.13"])
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        env.Append(LINKFLAGS=["-arch", "x86_64", "-mmacosx-version-min=10.13"])
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    cc_version = get_compiler_version(env)
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    cc_version_major = cc_version["major"]
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    cc_version_minor = cc_version["minor"]
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    vanilla = is_vanilla_clang(env)
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    # Workaround for Xcode 15 linker bug.
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    if not vanilla and cc_version_major == 15 and cc_version_minor == 0:
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        env.Prepend(LINKFLAGS=["-ld_classic"])
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    env.Append(CCFLAGS=["-fobjc-arc"])
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    if not "osxcross" in env:  # regular native build
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        if env["macports_clang"] != "no":
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            mpprefix = os.environ.get("MACPORTS_PREFIX", "/opt/local")
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            mpclangver = env["macports_clang"]
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            env["CC"] = mpprefix + "/libexec/llvm-" + mpclangver + "/bin/clang"
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            env["CXX"] = mpprefix + "/libexec/llvm-" + mpclangver + "/bin/clang++"
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            env["AR"] = mpprefix + "/libexec/llvm-" + mpclangver + "/bin/llvm-ar"
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            env["RANLIB"] = mpprefix + "/libexec/llvm-" + mpclangver + "/bin/llvm-ranlib"
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            env["AS"] = mpprefix + "/libexec/llvm-" + mpclangver + "/bin/llvm-as"
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        else:
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            env["CC"] = "clang"
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            env["CXX"] = "clang++"
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        detect_darwin_sdk_path("macos", env)
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        env.Append(CCFLAGS=["-isysroot", "$MACOS_SDK_PATH"])
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        env.Append(LINKFLAGS=["-isysroot", "$MACOS_SDK_PATH"])
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    else:  # osxcross build
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        root = os.environ.get("OSXCROSS_ROOT", "")
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        if env["arch"] == "arm64":
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            basecmd = root + "/target/bin/arm64-apple-" + env["osxcross_sdk"] + "-"
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        else:
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            basecmd = root + "/target/bin/x86_64-apple-" + env["osxcross_sdk"] + "-"
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        ccache_path = os.environ.get("CCACHE")
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        if ccache_path is None:
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            env["CC"] = basecmd + "cc"
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            env["CXX"] = basecmd + "c++"
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        else:
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            # there aren't any ccache wrappers available for macOS cross-compile,
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            # to enable caching we need to prepend the path to the ccache binary
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            env["CC"] = ccache_path + " " + basecmd + "cc"
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            env["CXX"] = ccache_path + " " + basecmd + "c++"
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        env["AR"] = basecmd + "ar"
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        env["RANLIB"] = basecmd + "ranlib"
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        env["AS"] = basecmd + "as"
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    # LTO
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    if env["lto"] == "auto":  # LTO benefits for macOS (size, performance) haven't been clearly established yet.
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        env["lto"] = "none"
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    if env["lto"] != "none":
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        if env["lto"] == "thin":
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            env.Append(CCFLAGS=["-flto=thin"])
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            env.Append(LINKFLAGS=["-flto=thin"])
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        else:
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            env.Append(CCFLAGS=["-flto"])
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            env.Append(LINKFLAGS=["-flto"])
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    # Sanitizers
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    if env["use_ubsan"] or env["use_asan"] or env["use_tsan"]:
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        env.extra_suffix += ".san"
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        env.Append(CCFLAGS=["-DSANITIZERS_ENABLED"])
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        if env["use_ubsan"]:
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            env.Append(
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                CCFLAGS=[
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                    "-fsanitize=undefined,shift,shift-exponent,integer-divide-by-zero,unreachable,vla-bound,null,return,signed-integer-overflow,bounds,float-divide-by-zero,float-cast-overflow,nonnull-attribute,returns-nonnull-attribute,bool,enum,vptr,pointer-overflow,builtin"
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                ]
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            )
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            env.Append(LINKFLAGS=["-fsanitize=undefined"])
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            env.Append(CCFLAGS=["-fsanitize=nullability-return,nullability-arg,function,nullability-assign"])
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        if env["use_asan"]:
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            env.Append(CCFLAGS=["-fsanitize=address,pointer-subtract,pointer-compare"])
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            env.Append(LINKFLAGS=["-fsanitize=address"])
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        if env["use_tsan"]:
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            env.Append(CCFLAGS=["-fsanitize=thread"])
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            env.Append(LINKFLAGS=["-fsanitize=thread"])
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    if env["use_coverage"]:
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        env.Append(CCFLAGS=["-ftest-coverage", "-fprofile-arcs"])
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        env.Append(LINKFLAGS=["-ftest-coverage", "-fprofile-arcs"])
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    ## Dependencies
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    if env["builtin_libtheora"] and env["arch"] == "x86_64":
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        env["x86_libtheora_opt_gcc"] = True
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    ## Flags
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    env.Prepend(CPPPATH=["#platform/macos"])
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    env.Append(CPPDEFINES=["MACOS_ENABLED", "UNIX_ENABLED", "COREAUDIO_ENABLED", "COREMIDI_ENABLED"])
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    env.Append(
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        LINKFLAGS=[
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            "-framework",
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            "Cocoa",
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            "-framework",
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            "Carbon",
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            "-framework",
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            "AudioUnit",
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            "-framework",
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            "CoreAudio",
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            "-framework",
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            "CoreMIDI",
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            "-framework",
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            "IOKit",
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            "-framework",
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            "ForceFeedback",
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            "-framework",
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            "CoreVideo",
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            "-framework",
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            "AVFoundation",
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            "-framework",
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            "CoreMedia",
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            "-framework",
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            "QuartzCore",
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            "-framework",
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            "Security",
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        ]
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    )
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    env.Append(LIBS=["pthread", "z"])
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    if env["opengl3"]:
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        env.Append(CPPDEFINES=["GLES3_ENABLED"])
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        if env["angle_libs"] != "":
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            env.AppendUnique(CPPDEFINES=["EGL_STATIC"])
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            env.Append(LINKFLAGS=["-L" + env["angle_libs"]])
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            env.Append(LINKFLAGS=["-lANGLE.macos." + env["arch"]])
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            env.Append(LINKFLAGS=["-lEGL.macos." + env["arch"]])
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            env.Append(LINKFLAGS=["-lGLES.macos." + env["arch"]])
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        env.Prepend(CPPPATH=["#thirdparty/angle/include"])
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    env.Append(LINKFLAGS=["-rpath", "@executable_path/../Frameworks", "-rpath", "@executable_path"])
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    if env["vulkan"]:
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        env.Append(CPPDEFINES=["VULKAN_ENABLED"])
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        env.Append(LINKFLAGS=["-framework", "Metal", "-framework", "IOSurface"])
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        if not env["use_volk"]:
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            env.Append(LINKFLAGS=["-lMoltenVK"])
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            mvk_found = False
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            mvk_list = [get_mvk_sdk_path(), "/opt/homebrew/lib", "/usr/local/homebrew/lib", "/opt/local/lib"]
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            if env["vulkan_sdk_path"] != "":
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                mvk_list.insert(0, os.path.expanduser(env["vulkan_sdk_path"]))
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                mvk_list.insert(
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                    0,
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                    os.path.join(
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                        os.path.expanduser(env["vulkan_sdk_path"]), "macOS/lib/MoltenVK.xcframework/macos-arm64_x86_64/"
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                    ),
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                )
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                mvk_list.insert(
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                    0,
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                    os.path.join(
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                        os.path.expanduser(env["vulkan_sdk_path"]), "MoltenVK/MoltenVK.xcframework/macos-arm64_x86_64/"
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                    ),
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                )
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            for mvk_path in mvk_list:
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                if mvk_path and os.path.isfile(os.path.join(mvk_path, "libMoltenVK.a")):
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                    mvk_found = True
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                    print("MoltenVK found at: " + mvk_path)
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                    env.Append(LINKFLAGS=["-L" + mvk_path])
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                    break
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            if not mvk_found:
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                print(
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                    "MoltenVK SDK installation directory not found, use 'vulkan_sdk_path' SCons parameter to specify SDK path."
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                )
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                sys.exit(255)
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