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import os
import sys
from methods import detect_darwin_sdk_path
def is_active():
return True
def get_name():
return "OSX"
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("debug_symbols", "Add debugging symbols to release/release_debug builds", True),
BoolVariable("separate_debug_symbols", "Create a separate file containing debugging symbols", False),
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 []
def configure(env):
## Build type
if env["target"] == "release":
if env["optimize"] == "speed": # optimize for speed (default)
env.Prepend(CCFLAGS=["-O3", "-fomit-frame-pointer", "-ftree-vectorize"])
elif env["optimize"] == "size": # optimize for size
env.Prepend(CCFLAGS=["-Os", "-ftree-vectorize"])
if env["arch"] != "arm64":
env.Prepend(CCFLAGS=["-msse2"])
if env["debug_symbols"]:
env.Prepend(CCFLAGS=["-g2"])
elif env["target"] == "release_debug":
if env["optimize"] == "speed": # optimize for speed (default)
env.Prepend(CCFLAGS=["-O2"])
elif env["optimize"] == "size": # optimize for size
env.Prepend(CCFLAGS=["-Os"])
if env["debug_symbols"]:
env.Prepend(CCFLAGS=["-g2"])
elif env["target"] == "debug":
env.Prepend(CCFLAGS=["-g3"])
env.Prepend(LINKFLAGS=["-Xlinker", "-no_deduplicate"])
## Architecture
# Mac OS X no longer runs on 32-bit since 10.7 which is unsupported since 2014
# As such, we only support 64-bit
env["bits"] = "64"
## Compiler configuration
# Save this in environment for use by other modules
if "OSXCROSS_ROOT" in os.environ:
env["osxcross"] = True
if env["arch"] == "arm64":
print("Building for macOS 10.15+, platform arm64.")
env.Append(CCFLAGS=["-arch", "arm64", "-mmacosx-version-min=10.15"])
env.Append(LINKFLAGS=["-arch", "arm64", "-mmacosx-version-min=10.15"])
else:
print("Building for macOS 10.12+, platform x86_64.")
env.Append(CCFLAGS=["-arch", "x86_64", "-mmacosx-version-min=10.12"])
env.Append(LINKFLAGS=["-arch", "x86_64", "-mmacosx-version-min=10.12"])
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("osx", env)
env.Append(CCFLAGS=["-isysroot", "$MACOS_SDK_PATH"])
env.Append(LINKFLAGS=["-isysroot", "$MACOS_SDK_PATH"])
else: # osxcross build
root = os.environ.get("OSXCROSS_ROOT", 0)
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"
if env["use_ubsan"] or env["use_asan"] or env["use_tsan"]:
env.extra_suffix += ".san"
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"]:
if env["arch"] != "arm64":
env["x86_libtheora_opt_gcc"] = True
## Flags
env.Prepend(CPPPATH=["#platform/osx"])
env.Append(CPPDEFINES=["OSX_ENABLED", "UNIX_ENABLED", "APPLE_STYLE_KEYS", "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",
]
)
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"])
if env["vulkan"]:
env.Append(CPPDEFINES=["VULKAN_ENABLED"])
env.Append(LINKFLAGS=["-framework", "Metal", "-framework", "QuartzCore", "-framework", "IOSurface"])
if not env["use_volk"]:
env.Append(LINKFLAGS=["-L$VULKAN_SDK_PATH/MoltenVK/MoltenVK.xcframework/macos-arm64_x86_64/", "-lMoltenVK"])
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