compiler-rt/test/msan/lit.cfg.py

   1 # -*- Python -*-
   2
   3 import os
   4
   5 # Setup config name.
   6 config.name = "MemorySanitizer" + getattr(config, "name_suffix", "default")
   7
   8 # Setup source root.
   9 config.test_source_root = os.path.dirname(__file__)
  10
  11 # Setup default compiler flags used with -fsanitize=memory option.
  12 clang_msan_cflags = (
  13     [
  14         "-fsanitize=memory",
  15         "-mno-omit-leaf-frame-pointer",
  16         "-fno-omit-frame-pointer",
  17         "-fno-optimize-sibling-calls",
  18     ]
  19     + [config.target_cflags]
  20     + config.debug_info_flags
  21 )
  22 # Some Msan tests leverage backtrace() which requires libexecinfo on FreeBSD.
  23 if config.host_os == "FreeBSD":
  24     clang_msan_cflags += ["-lexecinfo", "-fPIC"]
  25 # On SystemZ we need -mbackchain to make the fast unwinder work.
  26 if config.target_arch == "s390x":
  27     clang_msan_cflags.append("-mbackchain")
  28 clang_msan_cxxflags = config.cxx_mode_flags + clang_msan_cflags
  29
  30 # Flags for KMSAN invocation. This is C-only, we're not interested in C++.
  31 clang_kmsan_cflags = (
  32     ["-fsanitize=kernel-memory"] + [config.target_cflags] + config.debug_info_flags
  33 )
  34
  35
  36 def build_invocation(compile_flags):
  37     return " " + " ".join([config.clang] + compile_flags) + " "
  38
  39
  40 config.substitutions.append(("%clang_msan ", build_invocation(clang_msan_cflags)))
  41 config.substitutions.append(("%clangxx_msan ", build_invocation(clang_msan_cxxflags)))
  42 config.substitutions.append(("%clang_kmsan ", build_invocation(clang_kmsan_cflags)))
  43
  44 # Default test suffixes.
  45 config.suffixes = [".c", ".cpp"]
  46
  47 if config.host_os not in ["Linux", "NetBSD", "FreeBSD"]:
  48     config.unsupported = True
  49
  50 # For mips64, mips64el we have forced store_context_size to 1 because these
  51 # archs use slow unwinder which is not async signal safe. Therefore we only
  52 # check the first frame since store_context size is 1.
  53 if config.host_arch in ["mips64", "mips64el"]:
  54     config.substitutions.append(("CHECK-%short-stack", "CHECK-SHORT-STACK"))
  55 else:
  56     config.substitutions.append(("CHECK-%short-stack", "CHECK-FULL-STACK"))
  57
  58 if config.host_os == "NetBSD":
  59     config.substitutions.insert(0, ("%run", config.netbsd_noaslr_prefix))