import os import platform import sys from methods import get_compiler_version, using_gcc # This file is mostly based on platform/x11/detect.py. # If editing this file, make sure to apply relevant changes here too. def is_active(): return True def get_name(): return "Server" def get_program_suffix(): if sys.platform == "darwin": return "osx" return "x11" def can_build(): if os.name != "posix": return False return True def get_opts(): from SCons.Variables import BoolVariable, EnumVariable return [ EnumVariable("linker", "Linker program", "default", ("default", "bfd", "gold", "lld", "mold")), BoolVariable("use_llvm", "Use the LLVM compiler", False), BoolVariable("use_static_cpp", "Link libgcc and libstdc++ statically for better portability", True), BoolVariable('use_coverage', 'Test Pandemonium coverage', False), BoolVariable("use_ubsan", "Use LLVM/GCC compiler undefined behavior sanitizer (UBSAN)", False), BoolVariable("use_asan", "Use LLVM/GCC compiler address sanitizer (ASAN))", False), BoolVariable("use_lsan", "Use LLVM/GCC compiler leak sanitizer (LSAN))", False), BoolVariable("use_tsan", "Use LLVM/GCC compiler thread sanitizer (TSAN))", False), BoolVariable("debug_symbols", "Add debugging symbols to release/release_debug builds", True), BoolVariable("use_msan", "Use LLVM/GCC compiler memory sanitizer (MSAN))", False), BoolVariable("separate_debug_symbols", "Create a separate file containing debugging symbols", False), BoolVariable("execinfo", "Use libexecinfo on systems where glibc is not available", False), ] def get_flags(): return [] def configure(env): ## Build type if env["target"] == "release": if env["optimize"] == "speed": # optimize for speed (default) env.Prepend(CCFLAGS=["-O3"]) elif env["optimize"] == "size": # optimize for size env.Prepend(CCFLAGS=["-Os"]) if env["debug_symbols"]: env.Prepend(CCFLAGS=["-g2"]) elif env["target"] == "release_debug": if env["optimize"] == "speed": # optimize for speed (default) env.Prepend(CCFLAGS=["-O2"]) elif env["optimize"] == "size": # optimize for size env.Prepend(CCFLAGS=["-Os"]) if env["debug_symbols"]: env.Prepend(CCFLAGS=["-g2"]) elif env["target"] == "debug": env.Prepend(CCFLAGS=["-g3"]) env.Append(LINKFLAGS=["-rdynamic"]) if env["debug_symbols"]: # Adding dwarf-4 explicitly makes stacktraces work with clang builds, # otherwise addr2line doesn't understand them env.Append(CCFLAGS=["-gdwarf-4"]) ## Architecture is64 = sys.maxsize > 2 ** 32 if env["bits"] == "default": env["bits"] = "64" if is64 else "32" if env["arch"] == "" and platform.machine() == "riscv64": env["arch"] = "rv64" if env["arch"] == "rv64": # G = General-purpose extensions, C = Compression extension (very common). env.Append(CCFLAGS=["-march=rv64gc"]) ## Compiler configuration if "CXX" in env and "clang" in os.path.basename(env["CXX"]): # Convenience check to enforce the use_llvm overrides when CXX is clang(++) env["use_llvm"] = True if env["use_llvm"]: if "clang++" not in os.path.basename(env["CXX"]): env["CC"] = "clang" env["CXX"] = "clang++" env.extra_suffix = ".llvm" + env.extra_suffix env.Append(LIBS=["atomic"]) # Linker if env["linker"] != "default": print("Using linker program: " + env["linker"]) if env["linker"] == "mold" and using_gcc(env): # GCC < 12.1 doesn't support -fuse-ld=mold. cc_semver = tuple(get_compiler_version(env)) if cc_semver < (12, 1): found_wrapper = False for path in ["/usr/libexec", "/usr/local/libexec", "/usr/lib", "/usr/local/lib"]: if os.path.isfile(path + "/mold/ld"): env.Append(LINKFLAGS=["-B" + path + "/mold"]) found_wrapper = True break if not found_wrapper: print("Couldn't locate mold installation path. Make sure it's installed in /usr or /usr/local.") sys.exit(255) else: env.Append(LINKFLAGS=["-fuse-ld=mold"]) else: env.Append(LINKFLAGS=["-fuse-ld=%s" % env["linker"]]) if env['use_coverage']: env.Append(CCFLAGS=['-ftest-coverage', '-fprofile-arcs']) env.Append(LINKFLAGS=['-ftest-coverage', '-fprofile-arcs']) # Sanitizers if env["use_ubsan"] or env["use_asan"] or env["use_lsan"] or env["use_tsan"] or env["use_msan"]: env.extra_suffix += "s" if env["use_ubsan"]: env.Append(CCFLAGS=["-fsanitize=undefined"]) env.Append(LINKFLAGS=["-fsanitize=undefined"]) if env["use_asan"]: env.Append(CCFLAGS=["-fsanitize=address"]) env.Append(LINKFLAGS=["-fsanitize=address"]) if env["use_lsan"]: env.Append(CCFLAGS=["-fsanitize=leak"]) env.Append(LINKFLAGS=["-fsanitize=leak"]) if env["use_tsan"]: env.Append(CCFLAGS=["-fsanitize=thread"]) env.Append(LINKFLAGS=["-fsanitize=thread"]) if env["use_msan"]: env.Append(CCFLAGS=["-fsanitize=memory"]) env.Append(LINKFLAGS=["-fsanitize=memory"]) # LTO if env["lto"] != "none": if env["lto"] == "thin": if not env["use_llvm"]: print("ThinLTO is only compatible with LLVM, use `use_llvm=yes` or `lto=full`.") sys.exit(255) env.Append(CCFLAGS=["-flto=thin"]) env.Append(LINKFLAGS=["-flto=thin"]) elif not env["use_llvm"] and env.GetOption("num_jobs") > 1: env.Append(CCFLAGS=["-flto"]) env.Append(LINKFLAGS=["-flto=" + str(env.GetOption("num_jobs"))]) else: env.Append(CCFLAGS=["-flto"]) env.Append(LINKFLAGS=["-flto"]) if not env["use_llvm"]: env["RANLIB"] = "gcc-ranlib" env["AR"] = "gcc-ar" env.Append(CCFLAGS=["-pipe"]) ## Dependencies if not env["builtin_enet"]: env.ParseConfig("pkg-config libenet --cflags --libs") # Sound and video libraries # Keep the order as it triggers chained dependencies (ogg needed by others, etc.) if not env["builtin_mbedtls"]: # mbedTLS does not provide a pkgconfig config yet. See https://github.com/ARMmbed/mbedtls/issues/228 env.Append(LIBS=["mbedtls", "mbedcrypto", "mbedx509"]) # On Linux wchar_t should be 32-bits # 16-bit library shouldn't be required due to compiler optimisations if not env["builtin_pcre2"]: env.ParseConfig("pkg-config libpcre2-32 --cflags --libs") ## Flags env.Prepend(CPPPATH=["#platform/server"]) env.Append(CPPDEFINES=["SERVER_ENABLED", "UNIX_ENABLED"]) if platform.system() == "Darwin": env.Append(LINKFLAGS=["-framework", "Cocoa", "-framework", "Carbon", "-lz", "-framework", "IOKit"]) env.Append(LIBS=["pthread"]) if platform.system() == "Linux": env.Append(LIBS=["dl"]) if platform.system().find("BSD") >= 0: env["execinfo"] = True if env["execinfo"]: env.Append(LIBS=["execinfo"]) if platform.system() != "Darwin": # Link those statically for portability if env["use_static_cpp"]: env.Append(LINKFLAGS=["-static-libgcc", "-static-libstdc++"]) if env["use_llvm"] and platform.system() != "FreeBSD": #env["LINKCOM"] = env["LINKCOM"] + " -l:libatomic.a" env["LINKCOM"] = env["LINKCOM"] + " -latomic" else: if env["use_llvm"] and platform.system() != "FreeBSD": env.Append(LIBS=["atomic"])