compiler-rt/unittests/lit.common.unit.cfg.py

   1 # -*- Python -*-
   2
   3 # Configuration file for 'lit' test runner.
   4 # This file contains common config setup rules for unit tests in various
   5 # compiler-rt testsuites.
   6
   7 import os
   8
   9 import lit.formats
  10
  11 # Copied from libcxx's config.py
  12 def get_lit_conf(name, default=None):
  13     # Allow overriding on the command line using --param=<name>=<val>
  14     val = lit_config.params.get(name, None)
  15     if val is None:
  16         val = getattr(config, name, None)
  17         if val is None:
  18             val = default
  19     return val
  20
  21
  22 emulator = get_lit_conf("emulator", None)
  23
  24 # Setup test format
  25 llvm_build_mode = getattr(config, "llvm_build_mode", "Debug")
  26 config.test_format = lit.formats.GoogleTest(llvm_build_mode, "Test", emulator)
  27
  28 # Setup test suffixes.
  29 config.suffixes = []
  30
  31 # Tweak PATH to include llvm tools dir.
  32 llvm_tools_dir = config.llvm_tools_dir
  33 if (not llvm_tools_dir) or (not os.path.exists(llvm_tools_dir)):
  34     lit_config.fatal("Invalid llvm_tools_dir config attribute: %r" % llvm_tools_dir)
  35 path = os.path.pathsep.join((llvm_tools_dir, config.environment["PATH"]))
  36 config.environment["PATH"] = path
  37
  38 # Propagate the temp directory. Windows requires this because it uses \Windows\
  39 # if none of these are present.
  40 if "TMP" in os.environ:
  41     config.environment["TMP"] = os.environ["TMP"]
  42 if "TEMP" in os.environ:
  43     config.environment["TEMP"] = os.environ["TEMP"]
  44
  45 if config.host_os == "Darwin":
  46     # Only run up to 3 processes that require shadow memory simultaneously on
  47     # 64-bit Darwin. Using more scales badly and hogs the system due to
  48     # inefficient handling of large mmap'd regions (terabytes) by the kernel.
  49     lit_config.parallelism_groups["shadow-memory"] = 3
  50
  51     # Disable libmalloc nano allocator due to crashes running on macOS 12.0.
  52     # rdar://80086125
  53     config.environment["MallocNanoZone"] = "0"
  54
  55     # We crash when we set DYLD_INSERT_LIBRARIES for unit tests, so interceptors
  56     # don't work.
  57     config.environment["ASAN_OPTIONS"] = "verify_interceptors=0"
  58     config.environment["TSAN_OPTIONS"] = "verify_interceptors=0"