mirror of
https://github.com/Relintai/pandemonium_engine.git
synced 2024-12-24 04:46:48 +01:00
c708c44180
Adds support for LTO on macOS and Android. Disable LTO by default on iOS even if `production=yes` is set. Also add `linker` option to `server` platform missed in #63283. Refactor code handling old arguments to make it simpler (breaks compat, but is explicit enough about it and scripts are easy to fix).
273 lines
9.7 KiB
Python
273 lines
9.7 KiB
Python
import os
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import platform
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import sys
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from methods import get_compiler_version, using_gcc
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# This file is mostly based on platform/x11/detect.py.
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# If editing this file, make sure to apply relevant changes here too.
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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 "Server"
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def get_program_suffix():
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if sys.platform == "darwin":
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return "osx"
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return "x11"
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def can_build():
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if os.name != "posix":
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return False
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return True
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def get_opts():
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from SCons.Variables import BoolVariable, EnumVariable
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return [
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EnumVariable("linker", "Linker program", "default", ("default", "bfd", "gold", "lld", "mold")),
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BoolVariable("use_llvm", "Use the LLVM compiler", False),
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BoolVariable("use_static_cpp", "Link libgcc and libstdc++ statically for better portability", True),
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BoolVariable("use_ubsan", "Use LLVM/GCC compiler undefined behavior sanitizer (UBSAN)", False),
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BoolVariable("use_asan", "Use LLVM/GCC compiler address sanitizer (ASAN))", False),
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BoolVariable("use_lsan", "Use LLVM/GCC compiler leak sanitizer (LSAN))", False),
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BoolVariable("use_tsan", "Use LLVM/GCC compiler thread sanitizer (TSAN))", False),
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BoolVariable("debug_symbols", "Add debugging symbols to release/release_debug builds", True),
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BoolVariable("use_msan", "Use LLVM/GCC compiler memory sanitizer (MSAN))", False),
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BoolVariable("separate_debug_symbols", "Create a separate file containing debugging symbols", False),
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BoolVariable("execinfo", "Use libexecinfo on systems where glibc is not available", False),
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]
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def get_flags():
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return []
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def configure(env):
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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.Prepend(CCFLAGS=["-O3"])
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elif env["optimize"] == "size": # optimize for size
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env.Prepend(CCFLAGS=["-Os"])
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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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if env["optimize"] == "speed": # optimize for speed (default)
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env.Prepend(CCFLAGS=["-O2"])
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elif env["optimize"] == "size": # optimize for size
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env.Prepend(CCFLAGS=["-Os"])
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if env["debug_symbols"]:
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env.Prepend(CCFLAGS=["-g2"])
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elif env["target"] == "debug":
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env.Prepend(CCFLAGS=["-g3"])
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env.Append(LINKFLAGS=["-rdynamic"])
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## Architecture
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is64 = sys.maxsize > 2 ** 32
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if env["bits"] == "default":
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env["bits"] = "64" if is64 else "32"
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if env["arch"] == "" and platform.machine() == "riscv64":
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env["arch"] = "rv64"
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if env["arch"] == "rv64":
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# G = General-purpose extensions, C = Compression extension (very common).
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env.Append(CCFLAGS=["-march=rv64gc"])
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## Compiler configuration
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if "CXX" in env and "clang" in os.path.basename(env["CXX"]):
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# Convenience check to enforce the use_llvm overrides when CXX is clang(++)
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env["use_llvm"] = True
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if env["use_llvm"]:
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if "clang++" not in os.path.basename(env["CXX"]):
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env["CC"] = "clang"
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env["CXX"] = "clang++"
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env.extra_suffix = ".llvm" + env.extra_suffix
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env.Append(LIBS=["atomic"])
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# Linker
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if env["linker"] != "default":
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print("Using linker program: " + env["linker"])
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if env["linker"] == "mold" and using_gcc(env): # GCC < 12.1 doesn't support -fuse-ld=mold.
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cc_semver = tuple(get_compiler_version(env))
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if cc_semver < (12, 1):
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found_wrapper = False
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for path in ["/usr/libexec", "/usr/local/libexec", "/usr/lib", "/usr/local/lib"]:
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if os.path.isfile(path + "/mold/ld"):
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env.Append(LINKFLAGS=["-B" + path + "/mold"])
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found_wrapper = True
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break
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if not found_wrapper:
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print("Couldn't locate mold installation path. Make sure it's installed in /usr or /usr/local.")
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sys.exit(255)
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else:
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env.Append(LINKFLAGS=["-fuse-ld=mold"])
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else:
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env.Append(LINKFLAGS=["-fuse-ld=%s" % env["linker"]])
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# Sanitizers
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if env["use_ubsan"] or env["use_asan"] or env["use_lsan"] or env["use_tsan"] or env["use_msan"]:
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env.extra_suffix += "s"
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if env["use_ubsan"]:
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env.Append(CCFLAGS=["-fsanitize=undefined"])
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env.Append(LINKFLAGS=["-fsanitize=undefined"])
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if env["use_asan"]:
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env.Append(CCFLAGS=["-fsanitize=address"])
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env.Append(LINKFLAGS=["-fsanitize=address"])
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if env["use_lsan"]:
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env.Append(CCFLAGS=["-fsanitize=leak"])
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env.Append(LINKFLAGS=["-fsanitize=leak"])
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if env["use_tsan"]:
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env.Append(CCFLAGS=["-fsanitize=thread"])
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env.Append(LINKFLAGS=["-fsanitize=thread"])
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if env["use_msan"]:
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env.Append(CCFLAGS=["-fsanitize=memory"])
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env.Append(LINKFLAGS=["-fsanitize=memory"])
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# LTO
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if env["lto"] != "none":
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if env["lto"] == "thin":
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if not env["use_llvm"]:
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print("ThinLTO is only compatible with LLVM, use `use_llvm=yes` or `lto=full`.")
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sys.exit(255)
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env.Append(CCFLAGS=["-flto=thin"])
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env.Append(LINKFLAGS=["-flto=thin"])
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elif 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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env.Append(CCFLAGS=["-flto"])
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env.Append(LINKFLAGS=["-flto"])
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if not env["use_llvm"]:
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env["RANLIB"] = "gcc-ranlib"
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env["AR"] = "gcc-ar"
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env.Append(CCFLAGS=["-pipe"])
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## Dependencies
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# FIXME: Check for existence of the libs before parsing their flags with pkg-config
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# freetype depends on libpng and zlib, so bundling one of them while keeping others
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# as shared libraries leads to weird issues
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if env["builtin_freetype"] or env["builtin_libpng"] or env["builtin_zlib"]:
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env["builtin_freetype"] = True
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env["builtin_libpng"] = True
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env["builtin_zlib"] = True
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if not env["builtin_freetype"]:
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env.ParseConfig("pkg-config freetype2 --cflags --libs")
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if not env["builtin_libpng"]:
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env.ParseConfig("pkg-config libpng16 --cflags --libs")
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if False: # not env['builtin_assimp']:
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# FIXME: Add min version check
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env.ParseConfig("pkg-config assimp --cflags --libs")
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if not env["builtin_enet"]:
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env.ParseConfig("pkg-config libenet --cflags --libs")
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if not env["builtin_squish"]:
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env.ParseConfig("pkg-config libsquish --cflags --libs")
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if not env["builtin_zstd"]:
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env.ParseConfig("pkg-config libzstd --cflags --libs")
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# Sound and video libraries
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# Keep the order as it triggers chained dependencies (ogg needed by others, etc.)
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if not env["builtin_libtheora"]:
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env["builtin_libogg"] = False # Needed to link against system libtheora
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env["builtin_libvorbis"] = False # Needed to link against system libtheora
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env.ParseConfig("pkg-config theora theoradec --cflags --libs")
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else:
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list_of_x86 = ["x86_64", "x86", "i386", "i586"]
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if any(platform.machine() in s for s in list_of_x86):
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env["x86_libtheora_opt_gcc"] = True
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if not env["builtin_libvorbis"]:
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env["builtin_libogg"] = False # Needed to link against system libvorbis
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env.ParseConfig("pkg-config vorbis vorbisfile --cflags --libs")
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if not env["builtin_opus"]:
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env["builtin_libogg"] = False # Needed to link against system opus
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env.ParseConfig("pkg-config opus opusfile --cflags --libs")
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if not env["builtin_libogg"]:
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env.ParseConfig("pkg-config ogg --cflags --libs")
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if not env["builtin_mbedtls"]:
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# mbedTLS does not provide a pkgconfig config yet. See https://github.com/ARMmbed/mbedtls/issues/228
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env.Append(LIBS=["mbedtls", "mbedcrypto", "mbedx509"])
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if not env["builtin_wslay"]:
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env.ParseConfig("pkg-config libwslay --cflags --libs")
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if not env["builtin_miniupnpc"]:
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# No pkgconfig file so far, hardcode default paths.
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env.Prepend(CPPPATH=["/usr/include/miniupnpc"])
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env.Append(LIBS=["miniupnpc"])
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# On Linux wchar_t should be 32-bits
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# 16-bit library shouldn't be required due to compiler optimisations
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if not env["builtin_pcre2"]:
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env.ParseConfig("pkg-config libpcre2-32 --cflags --libs")
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## Flags
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# Linkflags below this line should typically stay the last ones
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if not env["builtin_zlib"]:
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env.ParseConfig("pkg-config zlib --cflags --libs")
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env.Prepend(CPPPATH=["#platform/server"])
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env.Append(CPPDEFINES=["SERVER_ENABLED", "UNIX_ENABLED"])
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if platform.system() == "Darwin":
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env.Append(LINKFLAGS=["-framework", "Cocoa", "-framework", "Carbon", "-lz", "-framework", "IOKit"])
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env.Append(LIBS=["pthread"])
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if platform.system() == "Linux":
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env.Append(LIBS=["dl"])
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if platform.system().find("BSD") >= 0:
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env["execinfo"] = True
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if env["execinfo"]:
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env.Append(LIBS=["execinfo"])
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if platform.system() != "Darwin":
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# Link those statically for portability
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if env["use_static_cpp"]:
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env.Append(LINKFLAGS=["-static-libgcc", "-static-libstdc++"])
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if env["use_llvm"] and platform.system() != "FreeBSD":
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#env["LINKCOM"] = env["LINKCOM"] + " -l:libatomic.a"
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env["LINKCOM"] = env["LINKCOM"] + " -latomic"
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else:
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if env["use_llvm"] and platform.system() != "FreeBSD":
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env.Append(LIBS=["atomic"])
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