godot/platform/windows/detect.py
Rémi Verschelde f7a999c814
Windows: Disable ASLR protection w/ MinGW, it breaks Mono
We might be able to make it work by building Mono itself with
ASLR protection too, but there might still be issues when loading
e.g. GDNative DLLs built without ASLR protection.

In the short term this is not a goal, but we can reconsider later
what is actually needed for ASLR protection to work and keep things
user-friendly.
2021-03-29 14:39:20 +02:00

465 lines
16 KiB
Python

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