7c7f4602e7
Exposes AddressSanitizer support in MSVC compiler. Can be installed via individual
components in the Visual Studio 2019 Installer.
Disabled by default. Compile the engine with `scons use_asan=yes`.
(cherry picked from commit 53901d870b)
460 lines
16 KiB
Python
460 lines
16 KiB
Python
import methods
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import os
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# To match other platforms
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STACK_SIZE = 8388608
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def is_active():
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return True
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def get_name():
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return "Windows"
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def can_build():
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if os.name == "nt":
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# Building natively on Windows
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# If VCINSTALLDIR is set in the OS environ, use traditional Godot logic to set up MSVC
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if os.getenv("VCINSTALLDIR"): # MSVC, manual setup
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return True
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# Otherwise, let SCons find MSVC if installed, or else Mingw.
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# Since we're just returning True here, if there's no compiler
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# installed, we'll get errors when it tries to build with the
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# null compiler.
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return True
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if os.name == "posix":
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# Cross-compiling with MinGW-w64 (old MinGW32 is not supported)
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mingw32 = "i686-w64-mingw32-"
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mingw64 = "x86_64-w64-mingw32-"
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if os.getenv("MINGW32_PREFIX"):
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mingw32 = os.getenv("MINGW32_PREFIX")
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if os.getenv("MINGW64_PREFIX"):
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mingw64 = os.getenv("MINGW64_PREFIX")
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test = "gcc --version > /dev/null 2>&1"
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if os.system(mingw64 + test) == 0 or os.system(mingw32 + test) == 0:
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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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mingw32 = ""
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mingw64 = ""
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if os.name == "posix":
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mingw32 = "i686-w64-mingw32-"
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mingw64 = "x86_64-w64-mingw32-"
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if os.getenv("MINGW32_PREFIX"):
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mingw32 = os.getenv("MINGW32_PREFIX")
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if os.getenv("MINGW64_PREFIX"):
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mingw64 = os.getenv("MINGW64_PREFIX")
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return [
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("mingw_prefix_32", "MinGW prefix (Win32)", mingw32),
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("mingw_prefix_64", "MinGW prefix (Win64)", mingw64),
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# Targeted Windows version: 7 (and later), minimum supported version
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# XP support dropped after EOL due to missing API for IPv6 and other issues
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# Vista support dropped after EOL due to GH-10243
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("target_win_version", "Targeted Windows version, >= 0x0601 (Windows 7)", "0x0601"),
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BoolVariable("debug_symbols", "Add debugging symbols to release/release_debug builds", True),
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BoolVariable("separate_debug_symbols", "Create a separate file containing debugging symbols", False),
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("msvc_version", "MSVC version to use. Ignored if VCINSTALLDIR is set in shell env.", None),
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BoolVariable("use_mingw", "Use the Mingw compiler, even if MSVC is installed.", False),
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BoolVariable("use_llvm", "Use the LLVM compiler", False),
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BoolVariable("use_thinlto", "Use ThinLTO", False),
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BoolVariable("use_static_cpp", "Link MinGW/MSVC C++ runtime libraries statically", True),
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BoolVariable("use_asan", "Use address sanitizer (ASAN)", False),
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]
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def get_flags():
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return []
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def build_res_file(target, source, env):
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if env["bits"] == "32":
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cmdbase = env["mingw_prefix_32"]
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else:
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cmdbase = env["mingw_prefix_64"]
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cmdbase = cmdbase + "windres --include-dir . "
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import subprocess
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for x in range(len(source)):
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cmd = cmdbase + "-i " + str(source[x]) + " -o " + str(target[x])
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try:
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out = subprocess.Popen(cmd, shell=True, stderr=subprocess.PIPE).communicate()
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if len(out[1]):
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return 1
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except Exception:
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return 1
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return 0
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def setup_msvc_manual(env):
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"""Set up env to use MSVC manually, using VCINSTALLDIR"""
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if env["bits"] != "default":
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print(
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"""
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Bits argument is not supported for MSVC compilation. Architecture depends on the Native/Cross Compile Tools Prompt/Developer Console
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(or Visual Studio settings) that is being used to run SCons. As a consequence, bits argument is disabled. Run scons again without bits
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argument (example: scons p=windows) and SCons will attempt to detect what MSVC compiler will be executed and inform you.
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"""
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)
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raise SCons.Errors.UserError("Bits argument should not be used when using VCINSTALLDIR")
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# Force bits arg
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# (Actually msys2 mingw can support 64-bit, we could detect that)
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env["bits"] = "32"
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env["x86_libtheora_opt_vc"] = True
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# find compiler manually
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compiler_version_str = methods.detect_visual_c_compiler_version(env["ENV"])
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print("Found MSVC compiler: " + compiler_version_str)
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# If building for 64bit architecture, disable assembly optimisations for 32 bit builds (theora as of writing)... vc compiler for 64bit can not compile _asm
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if compiler_version_str == "amd64" or compiler_version_str == "x86_amd64":
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env["bits"] = "64"
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env["x86_libtheora_opt_vc"] = False
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print("Compiled program architecture will be a 64 bit executable (forcing bits=64).")
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elif compiler_version_str == "x86" or compiler_version_str == "amd64_x86":
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print("Compiled program architecture will be a 32 bit executable. (forcing bits=32).")
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else:
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print(
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"Failed to manually detect MSVC compiler architecture version... Defaulting to 32bit executable settings (forcing bits=32). Compilation attempt will continue, but SCons can not detect for what architecture this build is compiled for. You should check your settings/compilation setup, or avoid setting VCINSTALLDIR."
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)
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def setup_msvc_auto(env):
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"""Set up MSVC using SCons's auto-detection logic"""
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# If MSVC_VERSION is set by SCons, we know MSVC is installed.
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# But we may want a different version or target arch.
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# The env may have already been set up with default MSVC tools, so
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# reset a few things so we can set it up with the tools we want.
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# (Ideally we'd decide on the tool config before configuring any
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# environment, and just set the env up once, but this function runs
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# on an existing env so this is the simplest way.)
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env["MSVC_SETUP_RUN"] = False # Need to set this to re-run the tool
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env["MSVS_VERSION"] = None
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env["MSVC_VERSION"] = None
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env["TARGET_ARCH"] = None
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if env["bits"] != "default":
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env["TARGET_ARCH"] = {"32": "x86", "64": "x86_64"}[env["bits"]]
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if env.has_key("msvc_version"):
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env["MSVC_VERSION"] = env["msvc_version"]
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env.Tool("msvc")
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env.Tool("mssdk") # we want the MS SDK
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# Note: actual compiler version can be found in env['MSVC_VERSION'], e.g. "14.1" for VS2015
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# Get actual target arch into bits (it may be "default" at this point):
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if env["TARGET_ARCH"] in ("amd64", "x86_64"):
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env["bits"] = "64"
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else:
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env["bits"] = "32"
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print("Found MSVC version %s, arch %s, bits=%s" % (env["MSVC_VERSION"], env["TARGET_ARCH"], env["bits"]))
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if env["TARGET_ARCH"] in ("amd64", "x86_64"):
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env["x86_libtheora_opt_vc"] = False
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def setup_mingw(env):
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"""Set up env for use with mingw"""
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# Nothing to do here
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print("Using MinGW")
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pass
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def configure_msvc(env, manual_msvc_config):
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"""Configure env to work with MSVC"""
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# Build type
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if env["target"] == "release":
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if env["optimize"] == "speed": # optimize for speed (default)
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env.Append(CCFLAGS=["/O2"])
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else: # optimize for size
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env.Append(CCFLAGS=["/O1"])
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env.Append(LINKFLAGS=["/SUBSYSTEM:WINDOWS"])
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env.Append(LINKFLAGS=["/ENTRY:mainCRTStartup"])
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env.Append(LINKFLAGS=["/OPT:REF"])
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elif env["target"] == "release_debug":
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if env["optimize"] == "speed": # optimize for speed (default)
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env.Append(CCFLAGS=["/O2"])
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else: # optimize for size
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env.Append(CCFLAGS=["/O1"])
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env.AppendUnique(CPPDEFINES=["DEBUG_ENABLED"])
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env.Append(LINKFLAGS=["/SUBSYSTEM:CONSOLE"])
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env.Append(LINKFLAGS=["/OPT:REF"])
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elif env["target"] == "debug":
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env.AppendUnique(CCFLAGS=["/Zi", "/FS", "/Od", "/EHsc"])
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env.AppendUnique(CPPDEFINES=["DEBUG_ENABLED"])
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env.Append(LINKFLAGS=["/SUBSYSTEM:CONSOLE"])
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env.Append(LINKFLAGS=["/DEBUG"])
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if env["debug_symbols"]:
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env.AppendUnique(CCFLAGS=["/Zi", "/FS"])
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env.AppendUnique(LINKFLAGS=["/DEBUG"])
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## Compile/link flags
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if env["use_static_cpp"]:
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env.AppendUnique(CCFLAGS=["/MT"])
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else:
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env.AppendUnique(CCFLAGS=["/MD"])
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env.AppendUnique(CCFLAGS=["/Gd", "/GR", "/nologo"])
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# Force to use Unicode encoding
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env.AppendUnique(CCFLAGS=["/utf-8"])
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env.AppendUnique(CXXFLAGS=["/TP"]) # assume all sources are C++
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if manual_msvc_config: # should be automatic if SCons found it
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if os.getenv("WindowsSdkDir") is not None:
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env.Prepend(CPPPATH=[os.getenv("WindowsSdkDir") + "/Include"])
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else:
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print("Missing environment variable: WindowsSdkDir")
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env.AppendUnique(
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CPPDEFINES=[
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"WINDOWS_ENABLED",
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"OPENGL_ENABLED",
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"WASAPI_ENABLED",
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"WINMIDI_ENABLED",
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"TYPED_METHOD_BIND",
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"WIN32",
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"MSVC",
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"WINVER=%s" % env["target_win_version"],
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"_WIN32_WINNT=%s" % env["target_win_version"],
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]
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)
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env.AppendUnique(CPPDEFINES=["NOMINMAX"]) # disable bogus min/max WinDef.h macros
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if env["bits"] == "64":
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env.AppendUnique(CPPDEFINES=["_WIN64"])
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## Libs
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LIBS = [
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"winmm",
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"opengl32",
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"dsound",
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"kernel32",
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"ole32",
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"oleaut32",
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"user32",
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"gdi32",
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"IPHLPAPI",
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"Shlwapi",
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"wsock32",
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"Ws2_32",
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"shell32",
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"advapi32",
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"dinput8",
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"dxguid",
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"imm32",
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"bcrypt",
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"Avrt",
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"dwmapi",
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]
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env.Append(LINKFLAGS=[p + env["LIBSUFFIX"] for p in LIBS])
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if manual_msvc_config:
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if os.getenv("WindowsSdkDir") is not None:
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env.Append(LIBPATH=[os.getenv("WindowsSdkDir") + "/Lib"])
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else:
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print("Missing environment variable: WindowsSdkDir")
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## LTO
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if env["use_lto"]:
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env.AppendUnique(CCFLAGS=["/GL"])
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env.AppendUnique(ARFLAGS=["/LTCG"])
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if env["progress"]:
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env.AppendUnique(LINKFLAGS=["/LTCG:STATUS"])
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else:
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env.AppendUnique(LINKFLAGS=["/LTCG"])
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if manual_msvc_config:
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env.Prepend(CPPPATH=[p for p in os.getenv("INCLUDE").split(";")])
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env.Append(LIBPATH=[p for p in os.getenv("LIB").split(";")])
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# Sanitizers
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if env["use_asan"]:
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env.extra_suffix += ".s"
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env.Append(LINKFLAGS=["/INFERASANLIBS"])
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env.Append(CCFLAGS=["/fsanitize=address"])
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# Incremental linking fix
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env["BUILDERS"]["ProgramOriginal"] = env["BUILDERS"]["Program"]
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env["BUILDERS"]["Program"] = methods.precious_program
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env.AppendUnique(LINKFLAGS=["/STACK:" + str(STACK_SIZE)])
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def configure_mingw(env):
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# Workaround for MinGW. See:
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# http://www.scons.org/wiki/LongCmdLinesOnWin32
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env.use_windows_spawn_fix()
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## Build type
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if env["target"] == "release":
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env.Append(CCFLAGS=["-msse2"])
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if env["optimize"] == "speed": # optimize for speed (default)
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if env["bits"] == "64":
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env.Append(CCFLAGS=["-O3"])
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else:
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env.Append(CCFLAGS=["-O2"])
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else: # optimize for size
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env.Prepend(CCFLAGS=["-Os"])
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env.Append(LINKFLAGS=["-Wl,--subsystem,windows"])
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if env["debug_symbols"]:
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env.Prepend(CCFLAGS=["-g2"])
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elif env["target"] == "release_debug":
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env.Append(CCFLAGS=["-O2"])
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env.Append(CPPDEFINES=["DEBUG_ENABLED"])
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if env["debug_symbols"]:
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env.Prepend(CCFLAGS=["-g2"])
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if env["optimize"] == "speed": # optimize for speed (default)
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env.Append(CCFLAGS=["-O2"])
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else: # optimize for size
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env.Prepend(CCFLAGS=["-Os"])
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elif env["target"] == "debug":
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env.Append(CCFLAGS=["-g3"])
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env.Append(CPPDEFINES=["DEBUG_ENABLED"])
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## Compiler configuration
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if os.name == "nt":
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# Force splitting libmodules.a in multiple chunks to work around
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# issues reaching the linker command line size limit, which also
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# seem to induce huge slowdown for 'ar' (GH-30892).
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env["split_libmodules"] = True
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else:
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env["PROGSUFFIX"] = env["PROGSUFFIX"] + ".exe" # for linux cross-compilation
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if env["bits"] == "default":
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if os.name == "nt":
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env["bits"] = "64" if "PROGRAMFILES(X86)" in os.environ else "32"
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else: # default to 64-bit on Linux
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env["bits"] = "64"
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mingw_prefix = ""
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if env["bits"] == "32":
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if env["use_static_cpp"]:
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env.Append(LINKFLAGS=["-static"])
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env.Append(LINKFLAGS=["-static-libgcc"])
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env.Append(LINKFLAGS=["-static-libstdc++"])
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mingw_prefix = env["mingw_prefix_32"]
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else:
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if env["use_static_cpp"]:
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env.Append(LINKFLAGS=["-static"])
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mingw_prefix = env["mingw_prefix_64"]
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if env["use_llvm"]:
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env["CC"] = mingw_prefix + "clang"
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env["CXX"] = mingw_prefix + "clang++"
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env["AS"] = mingw_prefix + "as"
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env["AR"] = mingw_prefix + "ar"
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env["RANLIB"] = mingw_prefix + "ranlib"
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else:
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env["CC"] = mingw_prefix + "gcc"
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env["CXX"] = mingw_prefix + "g++"
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env["AS"] = mingw_prefix + "as"
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env["AR"] = mingw_prefix + "gcc-ar"
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env["RANLIB"] = mingw_prefix + "gcc-ranlib"
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env["x86_libtheora_opt_gcc"] = True
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if env["use_lto"]:
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if not env["use_llvm"] and env.GetOption("num_jobs") > 1:
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env.Append(CCFLAGS=["-flto"])
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env.Append(LINKFLAGS=["-flto=" + str(env.GetOption("num_jobs"))])
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else:
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if env["use_thinlto"]:
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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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env.Append(LINKFLAGS=["-Wl,--stack," + str(STACK_SIZE)])
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## Compile flags
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env.Append(CCFLAGS=["-mwindows"])
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env.Append(CPPDEFINES=["WINDOWS_ENABLED", "OPENGL_ENABLED", "WASAPI_ENABLED", "WINMIDI_ENABLED"])
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env.Append(CPPDEFINES=[("WINVER", env["target_win_version"]), ("_WIN32_WINNT", env["target_win_version"])])
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env.Append(
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LIBS=[
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"mingw32",
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"opengl32",
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"dsound",
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"ole32",
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"d3d9",
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"winmm",
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"gdi32",
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"iphlpapi",
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"shlwapi",
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"wsock32",
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"ws2_32",
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"kernel32",
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"oleaut32",
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"dinput8",
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"dxguid",
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"ksuser",
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"imm32",
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"bcrypt",
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"avrt",
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"uuid",
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"dwmapi",
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]
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)
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env.Append(CPPDEFINES=["MINGW_ENABLED", ("MINGW_HAS_SECURE_API", 1)])
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# resrc
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env.Append(BUILDERS={"RES": env.Builder(action=build_res_file, suffix=".o", src_suffix=".rc")})
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def configure(env):
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# At this point the env has been set up with basic tools/compilers.
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env.Prepend(CPPPATH=["#platform/windows"])
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print("Configuring for Windows: target=%s, bits=%s" % (env["target"], env["bits"]))
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if os.name == "nt":
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env["ENV"] = os.environ # this makes build less repeatable, but simplifies some things
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env["ENV"]["TMP"] = os.environ["TMP"]
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# First figure out which compiler, version, and target arch we're using
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if os.getenv("VCINSTALLDIR") and not env["use_mingw"]:
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# Manual setup of MSVC
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setup_msvc_manual(env)
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env.msvc = True
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manual_msvc_config = True
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elif env.get("MSVC_VERSION", "") and not env["use_mingw"]:
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setup_msvc_auto(env)
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env.msvc = True
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manual_msvc_config = False
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else:
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setup_mingw(env)
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env.msvc = False
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# Now set compiler/linker flags
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if env.msvc:
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configure_msvc(env, manual_msvc_config)
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else: # MinGW
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configure_mingw(env)
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