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Merge pull request #94845 from alvinhochun/llvm-mingw-sanitizers

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Windows: Add sanitizers for llvm-mingw, increase stack for ASan
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Rémi Verschelde 2024-08-28 00:12:30 +02:00
commit 73acb2a5b8
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1 changed files with 33 additions and 2 deletions
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35
platform/windows/detect.py
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@ -13,6 +13,7 @@ if TYPE_CHECKING:
# To match other platforms
STACK_SIZE = 8388608
STACK_SIZE_SANITIZERS = 30 * 1024 * 1024
def get_name():
@ -203,6 +204,7 @@ def get_opts():
BoolVariable("use_llvm", "Use the LLVM compiler", False),
BoolVariable("use_static_cpp", "Link MinGW/MSVC C++ runtime libraries statically", True),
BoolVariable("use_asan", "Use address sanitizer (ASAN)", False),
BoolVariable("use_ubsan", "Use LLVM compiler undefined behavior sanitizer (UBSAN)", False),
BoolVariable("debug_crt", "Compile with MSVC's debug CRT (/MDd)", False),
BoolVariable("incremental_link", "Use MSVC incremental linking. May increase or decrease build times.", False),
BoolVariable("silence_msvc", "Silence MSVC's cl/link stdout bloat, redirecting any errors to stderr.", True),
@ -507,6 +509,7 @@ def configure_msvc(env: "SConsEnvironment", vcvars_msvc_config):
if env["use_asan"]:
env.extra_suffix += ".san"
prebuilt_lib_extra_suffix = ".san"
env.AppendUnique(CPPDEFINES=["SANITIZERS_ENABLED"])
env.Append(CCFLAGS=["/fsanitize=address"])
env.Append(LINKFLAGS=["/INFERASANLIBS"])
@ -628,7 +631,11 @@ def configure_msvc(env: "SConsEnvironment", vcvars_msvc_config):
env["BUILDERS"]["Program"] = methods.precious_program
env.Append(LINKFLAGS=["/NATVIS:platform\\windows\\godot.natvis"])
env.AppendUnique(LINKFLAGS=["/STACK:" + str(STACK_SIZE)])
if env["use_asan"]:
env.AppendUnique(LINKFLAGS=["/STACK:" + str(STACK_SIZE_SANITIZERS)])
else:
env.AppendUnique(LINKFLAGS=["/STACK:" + str(STACK_SIZE)])
def configure_mingw(env: "SConsEnvironment"):
@ -721,7 +728,10 @@ def configure_mingw(env: "SConsEnvironment"):
env.Append(CCFLAGS=["-flto"])
env.Append(LINKFLAGS=["-flto"])
env.Append(LINKFLAGS=["-Wl,--stack," + str(STACK_SIZE)])
if env["use_asan"]:
env.Append(LINKFLAGS=["-Wl,--stack," + str(STACK_SIZE_SANITIZERS)])
else:
env.Append(LINKFLAGS=["-Wl,--stack," + str(STACK_SIZE)])
## Compile flags
@ -732,6 +742,27 @@ def configure_mingw(env: "SConsEnvironment"):
if not env["use_llvm"]:
env.Append(CCFLAGS=["-mwindows"])
if env["use_asan"] or env["use_ubsan"]:
if not env["use_llvm"]:
print("GCC does not support sanitizers on Windows.")
sys.exit(255)
if env["arch"] not in ["x86_32", "x86_64"]:
print("Sanitizers are only supported for x86_32 and x86_64.")
sys.exit(255)
env.extra_suffix += ".san"
env.AppendUnique(CPPDEFINES=["SANITIZERS_ENABLED"])
san_flags = []
if env["use_asan"]:
san_flags.append("-fsanitize=address")
if env["use_ubsan"]:
san_flags.append("-fsanitize=undefined")
# Disable the vptr check since it gets triggered on any COM interface calls.
san_flags.append("-fno-sanitize=vptr")
env.Append(CFLAGS=san_flags)
env.Append(CCFLAGS=san_flags)
env.Append(LINKFLAGS=san_flags)
env.Append(CPPDEFINES=["WINDOWS_ENABLED", "WASAPI_ENABLED", "WINMIDI_ENABLED"])
env.Append(
CPPDEFINES=[