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pandemonium_engine/SConstruct
Relintai 5ae44c4746 Ported: SCons: Disable C++ exception handling 
Upon investigating the extremely slow MSVC build times in #80513, I noticed
that while Godot policy is to never use exceptions, we weren't enforcing it
with compiler flags, and thus still included exception handling code and
stack unwinding.

This is wasteful on multiple aspects:

- Binary size: Around 20% binary size reduction with exceptions disabled
  for both MSVC and GCC binaries.
- Compile time:
  * More than 50% build time reduction with MSVC.
  * 10% to 25% build time reduction with GCC + LTO.
- Performance: Possibly, needs to be benchmarked.

Since users may want to re-enable exceptions in their own thirdparty code
or the libraries they compile with Godot, this behavior can be toggled with
the `disable_exceptions` SCons option, which defaults to true.
- akien-mga
55550da68b
2023-08-27 13:04:04 +02:00

809 lines
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#!/usr/bin/env python
EnsureSConsVersion(0, 98, 1)
# System
import atexit
import glob
import os
import pickle
import sys
import time
from collections import OrderedDict
# Local
import methods
import gles_builders
import scu_builders
from platform_methods import run_in_subprocess
# scan possible build platforms
platform_list = [] # list of platforms
platform_opts = {} # options for each platform
platform_flags = {} # flags for each platform
active_platforms = []
active_platform_ids = []
platform_exporters = []
platform_apis = []
time_at_start = time.time()
for x in sorted(glob.glob("platform/*")):
if not os.path.isdir(x) or not os.path.exists(x + "/detect.py"):
continue
tmppath = "./" + x
sys.path.insert(0, tmppath)
import detect
if os.path.exists(x + "/export/export.cpp"):
platform_exporters.append(x[9:])
if os.path.exists(x + "/api/api.cpp"):
platform_apis.append(x[9:])
if detect.is_active():
active_platforms.append(detect.get_name())
active_platform_ids.append(x)
if detect.can_build():
x = x.replace("platform/", "") # rest of world
x = x.replace("platform\\", "") # win32
platform_list += [x]
platform_opts[x] = detect.get_opts()
platform_flags[x] = detect.get_flags()
sys.path.remove(tmppath)
sys.modules.pop("detect")
methods.save_active_platforms(active_platforms, active_platform_ids)
custom_tools = ["default"]
platform_arg = ARGUMENTS.get("platform", ARGUMENTS.get("p", False))
if platform_arg == "android":
custom_tools = ["clang", "clang++", "as", "ar", "link"]
elif platform_arg == "javascript":
# Use generic POSIX build toolchain for Emscripten.
custom_tools = ["cc", "c++", "ar", "link", "textfile", "zip"]
elif os.name == "nt" and methods.get_cmdline_bool("use_mingw", False):
custom_tools = ["mingw"]
# We let SCons build its default ENV as it includes OS-specific things which we don't
# want to have to pull in manually.
# Then we prepend PATH to make it take precedence, while preserving SCons' own entries.
env_base = Environment(tools=custom_tools)
env_base.PrependENVPath("PATH", os.getenv("PATH"))
env_base.PrependENVPath("PKG_CONFIG_PATH", os.getenv("PKG_CONFIG_PATH"))
if "TERM" in os.environ: # Used for colored output.
env_base["ENV"]["TERM"] = os.environ["TERM"]
env_base.disabled_modules = []
env_base.use_ptrcall = False
env_base.module_version_string = ""
env_base.msvc = False
env_base.__class__.disable_module = methods.disable_module
env_base.__class__.add_module_version_string = methods.add_module_version_string
env_base.__class__.add_source_files = methods.add_source_files
env_base.__class__.use_windows_spawn_fix = methods.use_windows_spawn_fix
env_base.__class__.split_lib = methods.split_lib
env_base.__class__.add_shared_library = methods.add_shared_library
env_base.__class__.add_library = methods.add_library
env_base.__class__.add_program = methods.add_program
env_base.__class__.CommandNoCache = methods.CommandNoCache
env_base.__class__.disable_warnings = methods.disable_warnings
env_base.__class__.force_optimization_on_debug = methods.force_optimization_on_debug
env_base.__class__.module_add_dependencies = methods.module_add_dependencies
env_base.__class__.module_check_dependencies = methods.module_check_dependencies
env_base["x86_libtheora_opt_gcc"] = False
env_base["x86_libtheora_opt_vc"] = False
# avoid issues when building with different versions of python out of the same directory
env_base.SConsignFile(".sconsign{0}.dblite".format(pickle.HIGHEST_PROTOCOL))
# Build options
customs = ["custom.py"]
profile = ARGUMENTS.get("profile", "")
if profile:
if os.path.isfile(profile):
customs.append(profile)
elif os.path.isfile(profile + ".py"):
customs.append(profile + ".py")
opts = Variables(customs, ARGUMENTS)
# Target build options
opts.Add("p", "Platform (alias for 'platform')", "")
opts.Add("platform", "Target platform (%s)" % ("|".join(platform_list),), "")
opts.Add(BoolVariable("tools", "Build the tools (a.k.a. the Pandemonium editor)", True))
opts.Add(EnumVariable("target", "Compilation target", "debug", ("debug", "release_debug", "release")))
opts.Add("arch", "Platform-dependent architecture (arm/arm64/x86/x64/mips/...)", "")
opts.Add(EnumVariable("bits", "Target platform bits", "default", ("default", "32", "64")))
opts.Add(EnumVariable("optimize", "Optimization type", "speed", ("speed", "size", "none")))
opts.Add(BoolVariable("production", "Set defaults to build Pandemonium for use in production", False))
opts.Add(EnumVariable("lto", "Link-time optimization (production builds)", "none", ("none", "auto", "thin", "full")))
opts.Add(BoolVariable("use_rtti", "Use RTTI", False))
# Components
opts.Add(BoolVariable("deprecated", "Enable deprecated features", True))
opts.Add(BoolVariable("minizip", "Enable ZIP archive support using minizip", True))
opts.Add(BoolVariable("xaudio2", "Enable the XAudio2 audio driver", False))
opts.Add(BoolVariable("disable_exceptions", "Force disabling exception handling code", True))
opts.Add("custom_modules", "A list of comma-separated directory paths containing custom modules to build.", "")
opts.Add(BoolVariable("custom_modules_recursive", "Detect custom modules recursively for each specified path.", True))
# Advanced options
opts.Add(BoolVariable("dev", "If yes, alias for verbose=yes warnings=extra werror=yes", False))
opts.Add(BoolVariable("fast_unsafe", "Enable unsafe options for faster rebuilds", False))
opts.Add(BoolVariable("compiledb", "Generate compilation DB (`compile_commands.json`) for external tools", False))
opts.Add(BoolVariable("verbose", "Enable verbose output for the compilation", False))
opts.Add(BoolVariable("progress", "Show a progress indicator during compilation", True))
opts.Add(EnumVariable("warnings", "Level of compilation warnings", "all", ("extra", "all", "moderate", "no")))
opts.Add(BoolVariable("werror", "Treat compiler warnings as errors", False))
opts.Add("extra_suffix", "Custom extra suffix added to the base filename of all generated binary files", "")
opts.Add(BoolVariable("vsproj", "Generate a Visual Studio solution", False))
opts.Add(
BoolVariable(
"split_libmodules",
"Split intermediate libmodules.a in smaller chunks to prevent exceeding linker command line size (forced to True when using MinGW)",
False,
)
)
opts.Add(BoolVariable("disable_3d", "Disable 3D nodes for a smaller executable", False))
opts.Add(BoolVariable("disable_advanced_gui", "Disable advanced GUI nodes and behaviors", False))
opts.Add(BoolVariable("no_editor_splash", "Don't use the custom splash screen for the editor", True))
opts.Add("system_certs_path", "Use this path as SSL certificates default for editor (for package maintainers)", "")
opts.Add(BoolVariable("use_precise_math_checks", "Math checks use very precise epsilon (debug option)", False))
opts.Add(BoolVariable("scu_build", "Use single compilation unit build", False))
opts.Add(
EnumVariable(
"rids",
"Server object management technique (debug option)",
"pointers",
("pointers", "handles", "tracked_handles"),
)
)
opts.Add(BoolVariable("editor_docs", "Whether to add docs to an editor build or not. Disabling this can significantly reduce incremental compile times. Only relevant for editor builds!", True))
# Thirdparty libraries
opts.Add(BoolVariable("builtin_certs", "Use the built-in SSL certificates bundles", True))
opts.Add(BoolVariable("builtin_enet", "Use the built-in ENet library", True))
opts.Add(BoolVariable("builtin_freetype", "Use the built-in FreeType library", True))
opts.Add(BoolVariable("builtin_libogg", "Use the built-in libogg library", True))
opts.Add(BoolVariable("builtin_libpng", "Use the built-in libpng library", True))
opts.Add(BoolVariable("builtin_libtheora", "Use the built-in libtheora library", True))
opts.Add(BoolVariable("builtin_libvorbis", "Use the built-in libvorbis library", True))
opts.Add(BoolVariable("builtin_wslay", "Use the built-in wslay library", True))
opts.Add(BoolVariable("builtin_mbedtls", "Use the built-in mbedTLS library", True))
opts.Add(BoolVariable("builtin_miniupnpc", "Use the built-in miniupnpc library", True))
opts.Add(BoolVariable("builtin_opus", "Use the built-in Opus library", True))
opts.Add(BoolVariable("builtin_pcre2", "Use the built-in PCRE2 library", True))
opts.Add(BoolVariable("builtin_pcre2_with_jit", "Use JIT compiler for the built-in PCRE2 library", True))
opts.Add(BoolVariable("builtin_recast", "Use the built-in Recast library", True))
opts.Add(BoolVariable("builtin_rvo2_2d", "Use the built-in RVO2 2D library", True))
opts.Add(BoolVariable("builtin_rvo2_3d", "Use the built-in RVO2 3D library", True))
opts.Add(BoolVariable("builtin_squish", "Use the built-in squish library", True))
opts.Add(BoolVariable("builtin_zlib", "Use the built-in zlib library", True))
opts.Add(BoolVariable("builtin_zstd", "Use the built-in Zstd library", True))
# Compilation environment setup
opts.Add("CXX", "C++ compiler")
opts.Add("CC", "C compiler")
opts.Add("LINK", "Linker")
opts.Add("CCFLAGS", "Custom flags for both the C and C++ compilers")
opts.Add("CFLAGS", "Custom flags for the C compiler")
opts.Add("CXXFLAGS", "Custom flags for the C++ compiler")
opts.Add("LINKFLAGS", "Custom flags for the linker")
# Update the environment to have all above options defined
# in following code (especially platform and custom_modules).
opts.Update(env_base)
# Platform selection: validate input, and add options.
selected_platform = ""
if env_base["platform"] != "":
selected_platform = env_base["platform"]
elif env_base["p"] != "":
selected_platform = env_base["p"]
else:
# Missing `platform` argument, try to detect platform automatically
if (
sys.platform.startswith("linux")
or sys.platform.startswith("dragonfly")
or sys.platform.startswith("freebsd")
or sys.platform.startswith("netbsd")
or sys.platform.startswith("openbsd")
):
selected_platform = "x11"
elif sys.platform == "darwin":
selected_platform = "osx"
elif sys.platform == "win32":
selected_platform = "windows"
else:
print("Could not detect platform automatically. Supported platforms:")
for x in platform_list:
print("\t" + x)
print("\nPlease run SCons again and select a valid platform: platform=<string>")
if selected_platform != "":
print("Automatically detected platform: " + selected_platform)
if selected_platform == "macos":
# Alias for forward compatibility.
print('Platform "macos" is still called "osx" in Godot 3.x. Building for platform "osx".')
selected_platform = "osx"
if selected_platform == "ios":
# Alias for forward compatibility.
print('Platform "ios" is still called "iphone" in Godot 3.x. Building for platform "iphone".')
selected_platform = "iphone"
if selected_platform in ["linux", "bsd", "linuxbsd"]:
if selected_platform == "linuxbsd":
# Alias for forward compatibility.
print('Platform "linuxbsd" is still called "x11" in Pandemonium 3.x. Building for platform "x11".')
# Alias for convenience.
selected_platform = "x11"
# Make sure to update this to the found, valid platform as it's used through the buildsystem as the reference.
# It should always be re-set after calling `opts.Update()` otherwise it uses the original input value.
env_base["platform"] = selected_platform
# Add platform-specific options.
if selected_platform in platform_opts:
for opt in platform_opts[selected_platform]:
opts.Add(opt)
# Update the environment to take platform-specific options into account.
opts.Update(env_base)
env_base["platform"] = selected_platform # Must always be re-set after calling opts.Update().
# Detect modules.
modules_detected = OrderedDict()
module_search_paths = [ "modules", methods.convert_custom_modules_path("editor_modules") ] # Built-in path.
# maybe?
#if env_base["tools"]:
# module_search_paths.append(methods.convert_custom_modules_path("editor_modules"))
if env_base["custom_modules"]:
paths = env_base["custom_modules"].split(",")
for p in paths:
try:
module_search_paths.append(methods.convert_custom_modules_path(p))
except ValueError as e:
print(e)
sys.exit(255)
for path in module_search_paths:
if path == "modules":
# Built-in modules don't have nested modules,
# so save the time it takes to parse directories.
modules = methods.detect_modules(path, recursive=False)
else: # Custom.
modules = methods.detect_modules(path, env_base["custom_modules_recursive"])
# Provide default include path for both the custom module search `path`
# and the base directory containing custom modules, as it may be different
# from the built-in "modules" name (e.g. "custom_modules/summator/summator.h"),
# so it can be referenced simply as `#include "summator/summator.h"`
# independently of where a module is located on user's filesystem.
env_base.Prepend(CPPPATH=[path, os.path.dirname(path)])
# Note: custom modules can override built-in ones.
modules_detected.update(modules)
# Add module options
for name, path in modules_detected.items():
enabled = True
sys.path.insert(0, path)
import config
try:
enabled = config.is_enabled()
except AttributeError:
pass
sys.path.remove(path)
sys.modules.pop("config")
opts.Add(BoolVariable("module_" + name + "_enabled", "Enable module '%s'" % (name,), enabled))
methods.write_modules(modules_detected)
# Update the environment again after all the module options are added.
opts.Update(env_base)
env_base["platform"] = selected_platform # Must always be re-set after calling opts.Update().
Help(opts.GenerateHelpText(env_base))
# add default include paths
env_base.Prepend(CPPPATH=["#"])
# configure ENV for platform
env_base.platform_exporters = platform_exporters
env_base.platform_apis = platform_apis
# Build type defines - more platform-specific ones can be in detect.py.
if env_base["target"] == "release_debug" or env_base["target"] == "debug":
# DEBUG_ENABLED enables debugging *features* and debug-only code, which is intended
# to give *users* extra debugging information for their game development.
env_base.Append(CPPDEFINES=["DEBUG_ENABLED"])
if env_base["target"] == "debug":
# DEV_ENABLED enables *engine developer* code which should only be compiled for those
# working on the engine itself.
env_base.Append(CPPDEFINES=["DEV_ENABLED"])
else:
# Disable assert() for production targets (only used in thirdparty code).
env_base.Append(CPPDEFINES=["NDEBUG"])
# SCons speed optimization controlled by the `fast_unsafe` option, which provide
# more than 10 s speed up for incremental rebuilds.
# Unsafe as they reduce the certainty of rebuilding all changed files, so it's
# enabled by default for `debug` builds, and can be overridden from command line.
# Ref: https://github.com/SCons/scons/wiki/GoFastButton
if methods.get_cmdline_bool("fast_unsafe", env_base["target"] == "debug"):
# Renamed to `content-timestamp` in SCons >= 4.2, keeping MD5 for compat.
env_base.Decider("MD5-timestamp")
env_base.SetOption("implicit_cache", 1)
env_base.SetOption("max_drift", 60)
if env_base["use_precise_math_checks"]:
env_base.Append(CPPDEFINES=["PRECISE_MATH_CHECKS"])
if not env_base.File("#main/splash_editor.png").exists():
# Force disabling editor splash if missing.
env_base["no_editor_splash"] = True
if env_base["no_editor_splash"]:
env_base.Append(CPPDEFINES=["NO_EDITOR_SPLASH"])
if not env_base["deprecated"]:
env_base.Append(CPPDEFINES=["DISABLE_DEPRECATED"])
if env_base["rids"] == "handles":
env_base.Append(CPPDEFINES=["RID_HANDLES_ENABLED"])
print("WARNING: Building with RIDs as handles.")
if env_base["rids"] == "tracked_handles":
env_base.Append(CPPDEFINES=["RID_HANDLES_ENABLED"])
env_base.Append(CPPDEFINES=["RID_HANDLE_ALLOCATION_TRACKING_ENABLED"])
print("WARNING: Building with RIDs as tracked handles.")
if selected_platform in platform_list:
tmppath = "./platform/" + selected_platform
sys.path.insert(0, tmppath)
import detect
env = env_base.Clone()
env.extra_suffix = ""
if env["extra_suffix"] != "":
env.extra_suffix += "." + env["extra_suffix"]
# Environment flags
CCFLAGS = env.get("CCFLAGS", "")
env["CCFLAGS"] = ""
env.Append(CCFLAGS=str(CCFLAGS).split())
CFLAGS = env.get("CFLAGS", "")
env["CFLAGS"] = ""
env.Append(CFLAGS=str(CFLAGS).split())
CXXFLAGS = env.get("CXXFLAGS", "")
env["CXXFLAGS"] = ""
env.Append(CXXFLAGS=str(CXXFLAGS).split())
LINKFLAGS = env.get("LINKFLAGS", "")
env["LINKFLAGS"] = ""
env.Append(LINKFLAGS=str(LINKFLAGS).split())
# Platform specific flags.
# These can sometimes override default options.
flag_list = platform_flags[selected_platform]
for f in flag_list:
if not (f[0] in ARGUMENTS): # allow command line to override platform flags
env[f[0]] = f[1]
# 'dev' and 'production' are aliases to set default options if they haven't been
# set manually by the user.
# These need to be checked *after* platform specific flags so that different
# default values can be set (e.g. to keep LTO off for `production` on some platforms).
if env["dev"]:
env["verbose"] = methods.get_cmdline_bool("verbose", True)
env["warnings"] = ARGUMENTS.get("warnings", "extra")
env["werror"] = methods.get_cmdline_bool("werror", True)
if env["production"]:
env["use_static_cpp"] = methods.get_cmdline_bool("use_static_cpp", True)
env["debug_symbols"] = methods.get_cmdline_bool("debug_symbols", False)
# LTO "auto" means we handle the preferred option in each platform detect.py.
env["lto"] = ARGUMENTS.get("lto", "auto")
if not env["tools"] and env["target"] == "debug":
print(
"WARNING: Requested `production` build with `tools=no target=debug`, "
"this will give you a full debug template (use `target=release_debug` "
"for an optimized template with debug features)."
)
# Run SCU file generation script if in a SCU build.
if env["scu_build"]:
methods.set_scu_folders(scu_builders.generate_scu_files(env["verbose"], env_base["target"] != "debug"))
# Must happen after the flags' definition, as configure is when most flags
# are actually handled to change compile options, etc.
detect.configure(env)
# Needs to happen after configure to handle "auto".
if env["lto"] != "none":
print("Using LTO: " + env["lto"])
# Set our C and C++ standard requirements.
# Prepending to make it possible to override
# This needs to come after `configure`, otherwise we don't have env.msvc.
if not env.msvc:
# Specifying GNU extensions support explicitly, which are supported by
# both GCC and Clang. This mirrors GCC and Clang's current default
# compile flags if no -std is specified.
env.Prepend(CFLAGS=["-std=gnu11"])
env.Prepend(CXXFLAGS=["-std=gnu++14"])
else:
# MSVC doesn't have clear C standard support, /std only covers C++.
# We apply it to CCFLAGS (both C and C++ code) in case it impacts C features.
env.Prepend(CCFLAGS=["/std:c++14"])
if env_base["use_rtti"]:
if not env.msvc:
env_base.Prepend(CXXFLAGS=["-frtti"])
env.Prepend(CXXFLAGS=["-frtti"])
else:
env_base.Prepend(CXXFLAGS=["/GR"])
env.Prepend(CXXFLAGS=["/GR"])
else:
if not env.msvc:
env_base.Prepend(CXXFLAGS=["-fno-rtti"])
env.Prepend(CXXFLAGS=["-fno-rtti"])
else:
env_base.Prepend(CXXFLAGS=["/GR-"])
env.Prepend(CXXFLAGS=["/GR-"])
# Don't use dynamic_cast, necessary with no-rtti.
env_base.Prepend(CPPDEFINES=["NO_SAFE_CAST"])
env.Prepend(CPPDEFINES=["NO_SAFE_CAST"])
# Handle renamed options.
if "use_lto" in ARGUMENTS or "use_thinlto" in ARGUMENTS:
print("Error: The `use_lto` and `use_thinlto` boolean options have been unified to `lto=<none|thin|full>`.")
print(" Please adjust your scripts accordingly.")
Exit(255)
if "use_lld" in ARGUMENTS:
print("Error: The `use_lld` boolean option has been replaced by `linker=<default|bfd|gold|lld|mold>`.")
print(" Please adjust your scripts accordingly.")
Exit(255)
# Disable exception handling. Godot doesn't use exceptions anywhere, and this
# saves around 20% of binary size and very significant build time (GH-80513).
if env["disable_exceptions"]:
if env.msvc:
env.Append(CPPDEFINES=[("_HAS_EXCEPTIONS", 0)])
else:
env.Append(CCFLAGS=["-fno-exceptions"])
elif env.msvc:
env.Append(CCFLAGS=["/EHsc"])
# Configure compiler warnings
if env.msvc: # MSVC
# Truncations, narrowing conversions, signed/unsigned comparisons...
disable_nonessential_warnings = ["/wd4267", "/wd4244", "/wd4305", "/wd4018", "/wd4800"]
if env["warnings"] == "extra":
env.Append(CCFLAGS=["/Wall"]) # Implies /W4
elif env["warnings"] == "all":
env.Append(CCFLAGS=["/W3"] + disable_nonessential_warnings)
elif env["warnings"] == "moderate":
env.Append(CCFLAGS=["/W2"] + disable_nonessential_warnings)
else: # 'no'
env.Append(CCFLAGS=["/w"])
if env["werror"]:
env.Append(CCFLAGS=["/WX"])
else: # GCC, Clang
version = methods.get_compiler_version(env) or [-1, -1]
common_warnings = []
if methods.using_gcc(env):
common_warnings += ["-Wno-misleading-indentation"]
if version[0] >= 7:
common_warnings += ["-Wshadow-local"]
elif methods.using_clang(env) or methods.using_emcc(env):
# We often implement `operator<` for structs of pointers as a requirement
# for putting them in `Set` or `Map`. We don't mind about unreliable ordering.
common_warnings += ["-Wno-ordered-compare-function-pointers"]
if env["warnings"] == "extra":
# Note: enable -Wimplicit-fallthrough for Clang (already part of -Wextra for GCC)
# once we switch to C++11 or later (necessary for our FALLTHROUGH macro).
env.Append(CCFLAGS=["-Wall", "-Wextra", "-Wwrite-strings", "-Wno-unused-parameter"] + common_warnings)
env.Append(CXXFLAGS=["-Wctor-dtor-privacy", "-Wnon-virtual-dtor"])
if methods.using_gcc(env):
env.Append(
CCFLAGS=[
"-Walloc-zero",
"-Wduplicated-branches",
"-Wduplicated-cond",
"-Wstringop-overflow=4",
"-Wlogical-op",
]
)
env.Append(CXXFLAGS=["-Wnoexcept", "-Wplacement-new=1"])
if version[0] >= 9:
env.Append(CCFLAGS=["-Wattribute-alias=2"])
elif env["warnings"] == "all":
env.Append(CCFLAGS=["-Wall"] + common_warnings)
elif env["warnings"] == "moderate":
env.Append(CCFLAGS=["-Wall", "-Wno-unused"] + common_warnings)
else: # 'no'
env.Append(CCFLAGS=["-w"])
if env["werror"]:
env.Append(CCFLAGS=["-Werror"])
if methods.using_gcc(env) and version[0] >= 12: # False positives in our error macros, see GH-58747.
env.Append(CCFLAGS=["-Wno-error=return-type"])
if hasattr(detect, "get_program_suffix"):
suffix = "." + detect.get_program_suffix()
else:
suffix = "." + selected_platform
if env["target"] == "release":
if env["tools"]:
print("ERROR: The editor can only be built with `target=debug` or `target=release_debug`.")
print(" Use `tools=no target=release` to build a release export template.")
Exit(255)
suffix += ".opt"
elif env["target"] == "release_debug":
if env["tools"]:
suffix += ".opt.tools"
else:
suffix += ".opt.debug"
else:
if env["tools"]:
print(
"Note: Building a debug binary (which will run slowly). Use `target=release_debug` to build an optimized release binary."
)
suffix += ".tools"
else:
print(
"Note: Building a debug binary (which will run slowly). Use `target=release` to build an optimized release binary."
)
suffix += ".debug"
if env["arch"] != "":
suffix += "." + env["arch"]
elif env["bits"] == "32":
suffix += ".32"
elif env["bits"] == "64":
suffix += ".64"
suffix += env.extra_suffix
sys.path.remove(tmppath)
sys.modules.pop("detect")
modules_enabled = OrderedDict()
env.module_dependencies = {}
env.module_icons_paths = []
env.module_license_files = []
env.doc_class_path = {}
for name, path in modules_detected.items():
if not env["module_" + name + "_enabled"]:
continue
sys.path.insert(0, path)
env.current_module = name
import config
if config.can_build(env, selected_platform):
# Disable it if a required dependency is missing.
if not env.module_check_dependencies(name):
continue
config.configure(env)
# Get doc classes paths (if present)
try:
doc_classes = config.get_doc_classes()
doc_path = config.get_doc_path()
for c in doc_classes:
env.doc_class_path[c] = path + "/" + doc_path
except Exception:
pass
# Get icon paths (if present)
try:
icons_path = config.get_icons_path()
env.module_icons_paths.append(path + "/" + icons_path)
except Exception:
# Default path for module icons
env.module_icons_paths.append(path + "/" + "icons")
# Get license path (if present)
try:
license_file = config.get_license_file()
if not os.path.isabs(path):
env.module_license_files.append("#" + path + "/" + license_file)
else:
env.module_license_files.append(path + "/" + license_file)
except Exception:
pass
modules_enabled[name] = path
else:
env["module_" + name + "_enabled"] = False
sys.path.remove(path)
sys.modules.pop("config")
#TODO hack, the editor should be a module as well
if env["tools"] and not env["module_freetype_enabled"]:
print("The editor (tools=yes) can't be built if freetype is disabled! Stopping.")
sys.exit(255)
env.module_list = modules_enabled
methods.sort_module_list(env)
methods.generate_version_header(env.module_version_string)
env["PROGSUFFIX"] = suffix + env.module_version_string + env["PROGSUFFIX"]
env["OBJSUFFIX"] = suffix + env["OBJSUFFIX"]
# (SH)LIBSUFFIX will be used for our own built libraries
# LIBSUFFIXES contains LIBSUFFIX and SHLIBSUFFIX by default,
# so we need to append the default suffixes to keep the ability
# to link against thirdparty libraries (.a, .so, .lib, etc.).
if os.name == "nt":
# On Windows, only static libraries and import libraries can be
# statically linked - both using .lib extension
env["LIBSUFFIXES"] += [env["LIBSUFFIX"]]
else:
env["LIBSUFFIXES"] += [env["LIBSUFFIX"], env["SHLIBSUFFIX"]]
env["LIBSUFFIX"] = suffix + env["LIBSUFFIX"]
env["SHLIBSUFFIX"] = suffix + env["SHLIBSUFFIX"]
if env.use_ptrcall:
env.Append(CPPDEFINES=["PTRCALL_ENABLED"])
if env["tools"]:
env.Append(CPPDEFINES=["TOOLS_ENABLED"])
if env["disable_3d"]:
if env["tools"]:
print(
"Build option 'disable_3d=yes' cannot be used with 'tools=yes' (editor), "
"only with 'tools=no' (export template)."
)
sys.exit(255)
else:
env.Append(CPPDEFINES=["_3D_DISABLED"])
if env["disable_advanced_gui"]:
if env["tools"]:
print(
"Build option 'disable_advanced_gui=yes' cannot be used with 'tools=yes' (editor), "
"only with 'tools=no' (export template)."
)
sys.exit(255)
else:
env.Append(CPPDEFINES=["ADVANCED_GUI_DISABLED"])
if env["minizip"]:
env.Append(CPPDEFINES=["MINIZIP_ENABLED"])
if not env["verbose"]:
methods.no_verbose(sys, env)
if not env["platform"] == "server":
env.Append(
BUILDERS={
"GLES2_GLSL": env.Builder(
action=run_in_subprocess(gles_builders.build_gles2_headers), suffix="glsl.gen.h", src_suffix=".glsl"
)
}
)
scons_cache_path = os.environ.get("SCONS_CACHE")
if scons_cache_path != None:
CacheDir(scons_cache_path)
print("Scons cache enabled... (path: '" + scons_cache_path + "')")
if env["vsproj"]:
env.vs_incs = []
env.vs_srcs = []
if env["compiledb"]:
# Generating the compilation DB (`compile_commands.json`) requires SCons 4.0.0 or later.
from SCons import __version__ as scons_raw_version
scons_ver = env._get_major_minor_revision(scons_raw_version)
if scons_ver < (4, 0, 0):
print("The `compiledb=yes` option requires SCons 4.0 or later, but your version is %s." % scons_raw_version)
Exit(255)
env.Tool("compilation_db")
env.Alias("compiledb", env.CompilationDatabase())
Export("env")
# build subdirs, the build order is dependent on link order.
SConscript("core/SCsub")
SConscript("servers/SCsub")
SConscript("scene/SCsub")
if env["tools"]:
SConscript("editor/SCsub")
SConscript("drivers/SCsub")
SConscript("platform/SCsub")
SConscript("modules/SCsub")
SConscript("main/SCsub")
SConscript("platform/" + selected_platform + "/SCsub") # build selected platform
# Microsoft Visual Studio Project Generation
if env["vsproj"]:
if os.name != "nt":
print("Error: The `vsproj` option is only usable on Windows with Visual Studio.")
Exit(255)
env["CPPPATH"] = [Dir(path) for path in env["CPPPATH"]]
methods.generate_vs_project(env, GetOption("num_jobs"))
methods.generate_cpp_hint_file("cpp.hint")
# Check for the existence of headers
conf = Configure(env)
if "check_c_headers" in env:
for header in env["check_c_headers"]:
if conf.CheckCHeader(header[0]):
env.AppendUnique(CPPDEFINES=[header[1]])
elif selected_platform != "":
if selected_platform == "list":
print("The following platforms are available:\n")
else:
print('Invalid target platform "' + selected_platform + '".')
print("The following platforms were detected:\n")
for x in platform_list:
print("\t" + x)
print("\nPlease run SCons again and select a valid platform: platform=<string>")
if selected_platform == "list":
# Exit early to suppress the rest of the built-in SCons messages
sys.exit(0)
else:
sys.exit(255)
# The following only makes sense when the 'env' is defined, and assumes it is.
if "env" in locals():
# FIXME: This method mixes both cosmetic progress stuff and cache handling...
methods.show_progress(env)
# TODO: replace this with `env.Dump(format="json")`
# once we start requiring SCons 4.0 as min version.
methods.dump(env)
def print_elapsed_time():
elapsed_time_sec = round(time.time() - time_at_start, 3)
time_ms = round((elapsed_time_sec % 1) * 1000)
print("[Time elapsed: {}.{:03}]".format(time.strftime("%H:%M:%S", time.gmtime(elapsed_time_sec)), time_ms))
atexit.register(print_elapsed_time)
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