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