433 lines
17 KiB
Python
433 lines
17 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, using_clang
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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 "X11"
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def can_build():
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if os.name != "posix" or sys.platform == "darwin":
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return False
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# Check the minimal dependencies
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x11_error = os.system("pkg-config --version > /dev/null")
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if x11_error:
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print("Error: pkg-config not found. Aborting.")
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return False
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x11_error = os.system("pkg-config x11 --modversion > /dev/null")
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if x11_error:
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print("Error: X11 libraries not found. Aborting.")
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return False
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x11_error = os.system("pkg-config xcursor --modversion > /dev/null")
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if x11_error:
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print("Error: Xcursor library not found. Aborting.")
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return False
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x11_error = os.system("pkg-config xinerama --modversion > /dev/null")
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if x11_error:
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print("Error: Xinerama library not found. Aborting.")
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return False
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x11_error = os.system("pkg-config xext --modversion > /dev/null")
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if x11_error:
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print("Error: Xext library not found. Aborting.")
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return False
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x11_error = os.system("pkg-config xrandr --modversion > /dev/null")
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if x11_error:
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print("Error: XrandR library not found. Aborting.")
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return False
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x11_error = os.system("pkg-config xrender --modversion > /dev/null")
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if x11_error:
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print("Error: XRender library not found. Aborting.")
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return False
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x11_error = os.system("pkg-config xi --modversion > /dev/null")
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if x11_error:
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print("Error: Xi library not found. Aborting.")
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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("use_msan", "Use LLVM/GCC compiler memory sanitizer (MSAN))", False),
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BoolVariable("pulseaudio", "Detect and use PulseAudio", True),
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BoolVariable("speechd", "Detect and use Speech Dispatcher for Text-to-Speech support", True),
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BoolVariable("udev", "Use udev for gamepad connection callbacks", True),
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BoolVariable("debug_symbols", "Add debugging symbols to release/release_debug builds", True),
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BoolVariable("separate_debug_symbols", "Create a separate file containing debugging symbols", False),
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BoolVariable("touch", "Enable touch events", True),
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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=["-ggdb"])
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env.Prepend(CCFLAGS=["-g3"])
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env.Append(LINKFLAGS=["-rdynamic"])
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if env["debug_symbols"]:
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# Adding dwarf-4 explicitly makes stacktraces work with clang builds,
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# otherwise addr2line doesn't understand them
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env.Append(CCFLAGS=["-gdwarf-4"])
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## Architecture
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# Cross-compilation
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# TODO: Support cross-compilation on architectures other than x86.
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host_is_64_bit = sys.maxsize > 2**32
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if env["bits"] == "default":
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env["bits"] = "64" if host_is_64_bit else "32"
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if host_is_64_bit and (env["bits"] == "32" or env["arch"] == "x86"):
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env.Append(CCFLAGS=["-m32"])
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env.Append(LINKFLAGS=["-m32"])
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elif not host_is_64_bit and (env["bits"] == "64" or env["arch"] == "x86_64"):
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env.Append(CCFLAGS=["-m64"])
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env.Append(LINKFLAGS=["-m64"])
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machines = {
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"riscv64": "rv64",
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"ppc64le": "ppc64",
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"ppc64": "ppc64",
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"ppcle": "ppc",
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"ppc": "ppc",
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}
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if env["arch"] == "" and platform.machine() in machines:
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env["arch"] = machines[platform.machine()]
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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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# 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(
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CCFLAGS=[
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"-fsanitize=undefined,shift,shift-exponent,integer-divide-by-zero,unreachable,vla-bound,null,return,signed-integer-overflow,bounds,float-divide-by-zero,float-cast-overflow,nonnull-attribute,returns-nonnull-attribute,bool,enum,vptr,pointer-overflow,builtin"
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]
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)
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if env["use_llvm"]:
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env.Append(
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CCFLAGS=[
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"-fsanitize=nullability-return,nullability-arg,function,nullability-assign,implicit-integer-sign-change,implicit-signed-integer-truncation,implicit-unsigned-integer-truncation"
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]
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)
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else:
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env.Append(CCFLAGS=["-fsanitize=bounds-strict"])
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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,pointer-subtract,pointer-compare"])
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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"] == "auto": # Full LTO for production.
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env["lto"] = "full"
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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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# Check for gcc version >= 6 before adding -no-pie
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version = get_compiler_version(env) or [-1, -1]
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if using_gcc(env):
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if version[0] >= 6:
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env.Append(CCFLAGS=["-fpie"])
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env.Append(LINKFLAGS=["-no-pie"])
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# Do the same for clang should be fine with Clang 4 and higher
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if using_clang(env):
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if version[0] >= 4:
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env.Append(CCFLAGS=["-fpie"])
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env.Append(LINKFLAGS=["-no-pie"])
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## Dependencies
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env.ParseConfig("pkg-config x11 --cflags --libs")
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env.ParseConfig("pkg-config xcursor --cflags --libs")
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env.ParseConfig("pkg-config xinerama --cflags --libs")
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env.ParseConfig("pkg-config xext --cflags --libs")
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env.ParseConfig("pkg-config xrandr --cflags --libs")
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env.ParseConfig("pkg-config xrender --cflags --libs")
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env.ParseConfig("pkg-config xi --cflags --libs")
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if env["touch"]:
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env.Append(CPPDEFINES=["TOUCH_ENABLED"])
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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 not env["builtin_bullet"]:
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# We need at least version 2.90
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min_bullet_version = "2.90"
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import subprocess
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bullet_version = subprocess.check_output(["pkg-config", "bullet", "--modversion"]).strip()
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if str(bullet_version) < min_bullet_version:
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# Abort as system bullet was requested but too old
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print(
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"Bullet: System version {0} does not match minimal requirements ({1}). Aborting.".format(
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bullet_version, min_bullet_version
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)
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)
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sys.exit(255)
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env.ParseConfig("pkg-config bullet --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 (env["arch"].startswith("x86") or env["arch"] == "") and 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_libvpx"]:
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env.ParseConfig("pkg-config vpx --cflags --libs")
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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_libwebp"]:
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env.ParseConfig("pkg-config libwebp --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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# Embree is only used in tools build on x86_64 and aarch64.
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if env["tools"] and not env["builtin_embree"] and host_is_64_bit:
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# No pkgconfig file so far, hardcode expected lib name.
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env.Append(LIBS=["embree3"])
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## Flags
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if os.system("pkg-config --exists alsa") == 0: # 0 means found
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env["alsa"] = True
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env.Append(CPPDEFINES=["ALSA_ENABLED", "ALSAMIDI_ENABLED"])
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env.ParseConfig("pkg-config alsa --cflags") # Only cflags, we dlopen the library.
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else:
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print("Warning: ALSA libraries not found. Disabling the ALSA audio driver.")
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if env["pulseaudio"]:
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if os.system("pkg-config --exists libpulse") == 0: # 0 means found
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env.Append(CPPDEFINES=["PULSEAUDIO_ENABLED"])
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env.ParseConfig("pkg-config libpulse --cflags") # Only cflags, we dlopen the library.
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else:
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env["pulseaudio"] = False
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print("Warning: PulseAudio development libraries not found. Disabling the PulseAudio audio driver.")
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if env["speechd"]:
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if os.system("pkg-config --exists speech-dispatcher") == 0: # 0 means found
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env.Append(CPPDEFINES=["SPEECHD_ENABLED"])
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env.ParseConfig("pkg-config speech-dispatcher --cflags") # Only cflags, we dlopen the library.
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else:
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env["speechd"] = False
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print("Warning: Speech Dispatcher development libraries not found. Disabling Text-to-Speech support.")
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if platform.system() == "Linux":
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env.Append(CPPDEFINES=["JOYDEV_ENABLED"])
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if env["udev"]:
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if os.system("pkg-config --exists libudev") == 0: # 0 means found
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env.Append(CPPDEFINES=["UDEV_ENABLED"])
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env.ParseConfig("pkg-config libudev --cflags") # Only cflags, we dlopen the library.
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else:
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env["udev"] = False
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print("Warning: libudev development libraries not found. Disabling controller hotplugging support.")
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else:
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env["udev"] = False # Linux specific
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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/x11"])
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env.Append(CPPDEFINES=["X11_ENABLED", "UNIX_ENABLED", "OPENGL_ENABLED", "GLES_ENABLED", ("_FILE_OFFSET_BITS", 64)])
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env.ParseConfig("pkg-config gl --cflags --libs")
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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 not env["execinfo"] and platform.libc_ver()[0] != "glibc":
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# The default crash handler depends on glibc, so if the host uses
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# a different libc (BSD libc, musl), fall back to libexecinfo.
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print("Note: Using `execinfo=yes` for the crash handler as required on platforms where glibc is missing.")
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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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# 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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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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