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https://github.com/godotengine/godot
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Merge pull request #80612 from akien-mga/scons-disable-exception-handling
SCons: Disable C++ exception handling
This commit is contained in:
commit
c3fd8752d2
14
SConstruct
14
SConstruct
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@ -193,6 +193,7 @@ opts.Add(BoolVariable("vulkan", "Enable the vulkan rendering driver", True))
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opts.Add(BoolVariable("opengl3", "Enable the OpenGL/GLES3 rendering driver", True))
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opts.Add(BoolVariable("openxr", "Enable the OpenXR driver", True))
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opts.Add(BoolVariable("use_volk", "Use the volk library to load the Vulkan loader dynamically", True))
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opts.Add(BoolVariable("disable_exceptions", "Force disabling exception handling code", True))
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opts.Add("custom_modules", "A list of comma-separated directory paths containing custom modules to build.", "")
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opts.Add(BoolVariable("custom_modules_recursive", "Detect custom modules recursively for each specified path.", True))
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@ -710,6 +711,16 @@ if selected_platform in platform_list:
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)
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Exit(255)
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# Disable exception handling. Godot doesn't use exceptions anywhere, and this
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# saves around 20% of binary size and very significant build time (GH-80513).
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if env["disable_exceptions"]:
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if env.msvc:
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env.Append(CPPDEFINES=[("_HAS_EXCEPTIONS", 0)])
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else:
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env.Append(CCFLAGS=["-fno-exceptions"])
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elif env.msvc:
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env.Append(CCFLAGS=["/EHsc"])
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# Configure compiler warnings
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if env.msvc: # MSVC
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if env["warnings"] == "no":
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@ -739,9 +750,6 @@ if selected_platform in platform_list:
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]
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)
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# Set exception handling model to avoid warnings caused by Windows system headers.
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env.Append(CCFLAGS=["/EHsc"])
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if env["werror"]:
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env.Append(CCFLAGS=["/WX"])
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else: # GCC, Clang
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@ -109,6 +109,15 @@ env_oidn.AppendUnique(CPPDEFINES=["NDEBUG"]) # No assert() even in debug builds
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env_thirdparty = env_oidn.Clone()
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env_thirdparty.disable_warnings()
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if env["disable_exceptions"]:
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# OIDN hard-requires exceptions, so we re-enable them here.
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if env.msvc and ("_HAS_EXCEPTIONS", 0) in env_thirdparty["CPPDEFINES"]:
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env_thirdparty["CPPDEFINES"].remove(("_HAS_EXCEPTIONS", 0))
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env_thirdparty.AppendUnique(CCFLAGS=["/EHsc"])
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elif not env.msvc and "-fno-exceptions" in env_thirdparty["CCFLAGS"]:
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env_thirdparty["CCFLAGS"].remove("-fno-exceptions")
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env_thirdparty.add_source_files(thirdparty_obj, thirdparty_sources)
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env.modules_sources += thirdparty_obj
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@ -52,10 +52,11 @@ if env["builtin_openxr"]:
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env_thirdparty = env_openxr.Clone()
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env_thirdparty.disable_warnings()
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env_thirdparty.AppendUnique(CPPDEFINES=["DISABLE_STD_FILESYSTEM"])
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if "-fno-exceptions" in env_thirdparty["CXXFLAGS"]:
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env_thirdparty["CXXFLAGS"].remove("-fno-exceptions")
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env_thirdparty.AppendUnique(CPPDEFINES=["DISABLE_STD_FILESYSTEM"])
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if env["disable_exceptions"]:
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env_thirdparty.AppendUnique(CPPDEFINES=["XRLOADER_DISABLE_EXCEPTION_HANDLING", ("JSON_USE_EXCEPTION", 0)])
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env_thirdparty.Append(CPPPATH=[thirdparty_dir + "/src/loader"])
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# add in external jsoncpp dependency
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@ -170,10 +170,6 @@ def configure(env: "Environment"):
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env["RANLIB"] = compiler_path + "/llvm-ranlib"
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env["AS"] = compiler_path + "/clang"
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# Disable exceptions on template builds
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if not env.editor_build:
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env.Append(CXXFLAGS=["-fno-exceptions"])
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env.Append(
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CCFLAGS=(
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"-fpic -ffunction-sections -funwind-tables -fstack-protector-strong -fvisibility=hidden -fno-strict-aliasing".split()
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@ -30,7 +30,6 @@ def get_opts():
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),
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("IOS_SDK_PATH", "Path to the iOS SDK", ""),
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BoolVariable("ios_simulator", "Build for iOS Simulator", False),
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BoolVariable("ios_exceptions", "Enable exceptions", False),
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("ios_triple", "Triple for ios toolchain", ""),
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]
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@ -138,11 +137,6 @@ def configure(env: "Environment"):
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env.Append(ASFLAGS=["-arch", "arm64"])
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env.Append(CPPDEFINES=["NEED_LONG_INT"])
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if env["ios_exceptions"]:
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env.Append(CCFLAGS=["-fexceptions"])
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else:
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env.Append(CCFLAGS=["-fno-exceptions"])
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# Temp fix for ABS/MAX/MIN macros in iOS SDK blocking compilation
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env.Append(CCFLAGS=["-Wno-ambiguous-macro"])
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@ -97,12 +97,9 @@ def configure(env: "Environment"):
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if env["use_assertions"]:
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env.Append(LINKFLAGS=["-s", "ASSERTIONS=1"])
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if env.editor_build:
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if env["initial_memory"] < 64:
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print('Note: Forcing "initial_memory=64" as it is required for the web editor.')
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env["initial_memory"] = 64
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else:
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env.Append(CPPFLAGS=["-fno-exceptions"])
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if env.editor_build and env["initial_memory"] < 64:
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print('Note: Forcing "initial_memory=64" as it is required for the web editor.')
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env["initial_memory"] = 64
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env.Append(LINKFLAGS=["-s", "INITIAL_MEMORY=%sMB" % env["initial_memory"]])
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@ -13,10 +13,8 @@ env_tests = env.Clone()
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if env_tests["platform"] == "windows":
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env_tests.Append(CPPDEFINES=[("DOCTEST_THREAD_LOCAL", "")])
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# Increase number of addressable sections in object files
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# due to doctest's heavy use of templates and macros.
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if env_tests.msvc:
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env_tests.Append(CCFLAGS=["/bigobj"])
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if env["disable_exceptions"]:
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env_tests.Append(CPPDEFINES=["DOCTEST_CONFIG_NO_EXCEPTIONS_BUT_WITH_ALL_ASSERTS"])
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env_tests.add_source_files(env.tests_sources, "*.cpp")
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@ -262,9 +262,7 @@ TEST_CASE("[Image] Modifying pixels of an image") {
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for (const Rect2i &rect : rects) {
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Ref<Image> img = memnew(Image(img_width, img_height, false, Image::FORMAT_RGBA8));
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CHECK_NOTHROW_MESSAGE(
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img->fill_rect(rect, Color(1, 1, 1, 1)),
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"fill_rect() shouldn't throw for any rect.");
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img->fill_rect(rect, Color(1, 1, 1, 1));
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for (int y = 0; y < img->get_height(); y++) {
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for (int x = 0; x < img->get_width(); x++) {
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if (rect.abs().has_point(Point2(x, y))) {
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@ -317,7 +315,7 @@ TEST_CASE("[Image] Modifying pixels of an image") {
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// Pre-multiply Alpha then Convert from RGBA to L8, checking alpha
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{
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Ref<Image> gray_image = memnew(Image(3, 3, false, Image::FORMAT_RGBA8));
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CHECK_NOTHROW_MESSAGE(gray_image->fill_rect(Rect2i(0, 0, 3, 3), Color(1, 1, 1, 0)), "fill_rect() shouldn't throw for any rect.");
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gray_image->fill_rect(Rect2i(0, 0, 3, 3), Color(1, 1, 1, 0));
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gray_image->set_pixel(1, 1, Color(1, 1, 1, 1));
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gray_image->set_pixel(1, 2, Color(0.5, 0.5, 0.5, 0.5));
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gray_image->set_pixel(2, 1, Color(0.25, 0.05, 0.5, 1.0));
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@ -226,7 +226,7 @@ TEST_CASE("[SceneTree][Viewport] Controls and InputEvent handling") {
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SUBCASE("[Viewport][GuiInputEvent] nullptr as argument doesn't lead to a crash.") {
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ERR_PRINT_OFF;
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CHECK_NOTHROW(root->push_input(nullptr));
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root->push_input(nullptr);
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ERR_PRINT_ON;
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}
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