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# -*- Python -*-
import os
# Setup config name.
config.name = "GWP-ASan" + config.name_suffix
# Setup source root.
config.test_source_root = os.path.dirname(__file__)
# Test suffixes.
config.suffixes = [".c", ".cpp", ".test"]
# C & CXX flags.
c_flags = [config.target_cflags]
cxx_flags = c_flags + config.cxx_mode_flags + ["-std=c++14"]
libscudo_standalone = os.path.join(
config.compiler_rt_libdir, "libclang_rt.scudo_standalone%s.a" % config.target_suffix
)
libscudo_standalone_cxx = os.path.join(
config.compiler_rt_libdir,
"libclang_rt.scudo_standalone_cxx%s.a" % config.target_suffix,
)
scudo_link_flags = [
"-pthread",
"-Wl,--whole-archive",
libscudo_standalone,
"-Wl,--no-whole-archive",
]
scudo_link_cxx_flags = [
"-Wl,--whole-archive",
libscudo_standalone_cxx,
"-Wl,--no-whole-archive",
]
# -rdynamic is necessary for online function symbolization.
gwp_asan_flags = ["-rdynamic"] + scudo_link_flags
def build_invocation(compile_flags):
return " " + " ".join([config.clang] + compile_flags) + " "
# Add substitutions.
config.substitutions.append(("%clang ", build_invocation(c_flags)))
config.substitutions.append(
("%clang_gwp_asan ", build_invocation(c_flags + gwp_asan_flags))
)
config.substitutions.append(
(
"%clangxx_gwp_asan ",
build_invocation(cxx_flags + gwp_asan_flags + scudo_link_cxx_flags),
)
)
# Platform-specific default GWP_ASAN for lit tests. Ensure that GWP-ASan is
# enabled and that it samples every allocation.
default_gwp_asan_options = "GWP_ASAN_Enabled=1:GWP_ASAN_SampleRate=1"
config.environment["SCUDO_OPTIONS"] = default_gwp_asan_options
default_gwp_asan_options += ":"
config.substitutions.append(
("%env_scudo_options=", "env SCUDO_OPTIONS=" + default_gwp_asan_options)
)
# GWP-ASan tests are currently supported on Linux only.
if config.host_os not in ["Linux"]:
config.unsupported = True
|
