# -*- Python -*-

import os

# Setup config name.
config.name = "DataFlowSanitizer" + config.name_suffix

# Setup source root.
config.test_source_root = os.path.dirname(__file__)

# Setup default compiler flags used with -fsanitize=dataflow option.
clang_dfsan_cflags = ["-fsanitize=dataflow"] + [config.target_cflags]
# s390x arch needs -mbackchain to print stack backtrace of origin.
if config.target_arch == "s390x":
    clang_dfsan_cflags.append("-mbackchain")

clang_dfsan_cxxflags = config.cxx_mode_flags + clang_dfsan_cflags


def build_invocation(compile_flags):
    return " " + " ".join([config.clang] + compile_flags) + " "


config.substitutions.append(("%clang_dfsan ", build_invocation(clang_dfsan_cflags)))
config.substitutions.append(("%clangxx_dfsan ", build_invocation(clang_dfsan_cxxflags)))

# Default test suffixes.
config.suffixes = [".c", ".cpp"]

# DataFlowSanitizer tests are currently supported on Linux only.
if not (
    config.target_os in ["Linux"]
    and config.target_arch in ["aarch64", "x86_64", "loongarch64", "s390x"]
):
    config.unsupported = True
