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import os
import sys
from methods import detect_darwin_sdk_path
from platform_methods import detect_arch
from typing import TYPE_CHECKING
if TYPE_CHECKING:
from SCons import Environment
def is_active():
return True
def get_name():
return "macOS"
def can_build():
if sys.platform == "darwin" or ("OSXCROSS_ROOT" in os.environ):
return True
return False
def get_opts():
from SCons.Variables import BoolVariable, EnumVariable
return [
("osxcross_sdk", "OSXCross SDK version", "darwin16"),
("MACOS_SDK_PATH", "Path to the macOS SDK", ""),
("vulkan_sdk_path", "Path to the Vulkan SDK", ""),
EnumVariable("macports_clang", "Build using Clang from MacPorts", "no", ("no", "5.0", "devel")),
BoolVariable("use_ubsan", "Use LLVM/GCC compiler undefined behavior sanitizer (UBSAN)", False),
BoolVariable("use_asan", "Use LLVM/GCC compiler address sanitizer (ASAN)", False),
BoolVariable("use_tsan", "Use LLVM/GCC compiler thread sanitizer (TSAN)", False),
BoolVariable("use_coverage", "Use instrumentation codes in the binary (e.g. for code coverage)", False),
]
def get_flags():
return [
("arch", detect_arch()),
("use_volk", False),
]
def get_mvk_sdk_path():
def int_or_zero(i):
try:
return int(i)
except:
return 0
def ver_parse(a):
return [int_or_zero(i) for i in a.split(".")]
dirname = os.path.expanduser("~/VulkanSDK")
if not os.path.exists(dirname):
return ""
ver_file = "0.0.0.0"
ver_num = ver_parse(ver_file)
files = os.listdir(dirname)
for file in files:
if os.path.isdir(os.path.join(dirname, file)):
ver_comp = ver_parse(file)
lib_name = os.path.join(
os.path.join(dirname, file), "MoltenVK/MoltenVK.xcframework/macos-arm64_x86_64/libMoltenVK.a"
)
if os.path.isfile(lib_name) and ver_comp > ver_num:
ver_num = ver_comp
ver_file = file
return os.path.join(os.path.join(dirname, ver_file), "MoltenVK/MoltenVK.xcframework/macos-arm64_x86_64/")
def configure(env: "Environment"):
# Validate arch.
supported_arches = ["x86_64", "arm64"]
if env["arch"] not in supported_arches:
print(
'Unsupported CPU architecture "%s" for macOS. Supported architectures are: %s.'
% (env["arch"], ", ".join(supported_arches))
)
sys.exit()
## Build type
if env["target"] == "template_release":
if env["arch"] != "arm64":
env.Prepend(CCFLAGS=["-msse2"])
elif env.dev_build:
env.Prepend(LINKFLAGS=["-Xlinker", "-no_deduplicate"])
## Compiler configuration
# Save this in environment for use by other modules
if "OSXCROSS_ROOT" in os.environ:
env["osxcross"] = True
# CPU architecture.
if env["arch"] == "arm64":
print("Building for macOS 11.0+.")
env.Append(ASFLAGS=["-arch", "arm64", "-mmacosx-version-min=11.0"])
env.Append(CCFLAGS=["-arch", "arm64", "-mmacosx-version-min=11.0"])
env.Append(LINKFLAGS=["-arch", "arm64", "-mmacosx-version-min=11.0"])
elif env["arch"] == "x86_64":
print("Building for macOS 10.12+.")
env.Append(ASFLAGS=["-arch", "x86_64", "-mmacosx-version-min=10.12"])
env.Append(CCFLAGS=["-arch", "x86_64", "-mmacosx-version-min=10.12"])
env.Append(LINKFLAGS=["-arch", "x86_64", "-mmacosx-version-min=10.12"])
env.Append(CCFLAGS=["-fobjc-arc"])
if not "osxcross" in env: # regular native build
if env["macports_clang"] != "no":
mpprefix = os.environ.get("MACPORTS_PREFIX", "/opt/local")
mpclangver = env["macports_clang"]
env["CC"] = mpprefix + "/libexec/llvm-" + mpclangver + "/bin/clang"
env["CXX"] = mpprefix + "/libexec/llvm-" + mpclangver + "/bin/clang++"
env["AR"] = mpprefix + "/libexec/llvm-" + mpclangver + "/bin/llvm-ar"
env["RANLIB"] = mpprefix + "/libexec/llvm-" + mpclangver + "/bin/llvm-ranlib"
env["AS"] = mpprefix + "/libexec/llvm-" + mpclangver + "/bin/llvm-as"
else:
env["CC"] = "clang"
env["CXX"] = "clang++"
detect_darwin_sdk_path("macos", env)
env.Append(CCFLAGS=["-isysroot", "$MACOS_SDK_PATH"])
env.Append(LINKFLAGS=["-isysroot", "$MACOS_SDK_PATH"])
else: # osxcross build
root = os.environ.get("OSXCROSS_ROOT", "")
if env["arch"] == "arm64":
basecmd = root + "/target/bin/arm64-apple-" + env["osxcross_sdk"] + "-"
else:
basecmd = root + "/target/bin/x86_64-apple-" + env["osxcross_sdk"] + "-"
ccache_path = os.environ.get("CCACHE")
if ccache_path is None:
env["CC"] = basecmd + "cc"
env["CXX"] = basecmd + "c++"
else:
# there aren't any ccache wrappers available for OS X cross-compile,
# to enable caching we need to prepend the path to the ccache binary
env["CC"] = ccache_path + " " + basecmd + "cc"
env["CXX"] = ccache_path + " " + basecmd + "c++"
env["AR"] = basecmd + "ar"
env["RANLIB"] = basecmd + "ranlib"
env["AS"] = basecmd + "as"
# LTO
if env["lto"] == "auto": # LTO benefits for macOS (size, performance) haven't been clearly established yet.
env["lto"] = "none"
if env["lto"] != "none":
if env["lto"] == "thin":
env.Append(CCFLAGS=["-flto=thin"])
env.Append(LINKFLAGS=["-flto=thin"])
else:
env.Append(CCFLAGS=["-flto"])
env.Append(LINKFLAGS=["-flto"])
# Sanitizers
if env["use_ubsan"] or env["use_asan"] or env["use_tsan"]:
env.extra_suffix += ".san"
env.Append(CCFLAGS=["-DSANITIZERS_ENABLED"])
if env["use_ubsan"]:
env.Append(
CCFLAGS=[
"-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"
]
)
env.Append(LINKFLAGS=["-fsanitize=undefined"])
env.Append(CCFLAGS=["-fsanitize=nullability-return,nullability-arg,function,nullability-assign"])
if env["use_asan"]:
env.Append(CCFLAGS=["-fsanitize=address,pointer-subtract,pointer-compare"])
env.Append(LINKFLAGS=["-fsanitize=address"])
if env["use_tsan"]:
env.Append(CCFLAGS=["-fsanitize=thread"])
env.Append(LINKFLAGS=["-fsanitize=thread"])
if env["use_coverage"]:
env.Append(CCFLAGS=["-ftest-coverage", "-fprofile-arcs"])
env.Append(LINKFLAGS=["-ftest-coverage", "-fprofile-arcs"])
## Dependencies
if env["builtin_libtheora"] and env["arch"] == "x86_64":
env["x86_libtheora_opt_gcc"] = True
## Flags
env.Prepend(CPPPATH=["#platform/macos"])
env.Append(CPPDEFINES=["MACOS_ENABLED", "UNIX_ENABLED", "COREAUDIO_ENABLED", "COREMIDI_ENABLED"])
env.Append(
LINKFLAGS=[
"-framework",
"Cocoa",
"-framework",
"Carbon",
"-framework",
"AudioUnit",
"-framework",
"CoreAudio",
"-framework",
"CoreMIDI",
"-framework",
"IOKit",
"-framework",
"ForceFeedback",
"-framework",
"CoreVideo",
"-framework",
"AVFoundation",
"-framework",
"CoreMedia",
"-framework",
"QuartzCore",
]
)
env.Append(LIBS=["pthread", "z"])
if env["opengl3"]:
env.Append(CPPDEFINES=["GLES_ENABLED", "GLES3_ENABLED"])
env.Append(CCFLAGS=["-Wno-deprecated-declarations"]) # Disable deprecation warnings
env.Append(LINKFLAGS=["-framework", "OpenGL"])
env.Append(LINKFLAGS=["-rpath", "@executable_path/../Frameworks", "-rpath", "@executable_path"])
if env["vulkan"]:
env.Append(CPPDEFINES=["VULKAN_ENABLED"])
env.Append(LINKFLAGS=["-framework", "Metal", "-framework", "IOSurface"])
if not env["use_volk"]:
env.Append(LINKFLAGS=["-lMoltenVK"])
mvk_found = False
mkv_list = [get_mvk_sdk_path(), "/opt/homebrew/lib", "/usr/local/homebrew/lib", "/opt/local/lib"]
if env["vulkan_sdk_path"] != "":
mkv_list.insert(0, os.path.expanduser(env["vulkan_sdk_path"]))
mkv_list.insert(
0,
os.path.join(
os.path.expanduser(env["vulkan_sdk_path"]), "MoltenVK/MoltenVK.xcframework/macos-arm64_x86_64/"
),
)
for mvk_path in mkv_list:
if mvk_path and os.path.isfile(os.path.join(mvk_path, "libMoltenVK.a")):
mvk_found = True
print("MoltenVK found at: " + mvk_path)
env.Append(LINKFLAGS=["-L" + mvk_path])
break
if not mvk_found:
print(
"MoltenVK SDK installation directory not found, use 'vulkan_sdk_path' SCons parameter to specify SDK path."
)
sys.exit(255)
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