xref: /llvm-project/clang/test/Unit/lit.cfg.py (revision fe3f6c63cd6b75433a72b980a23d9848d19abdc2) 
1# -*- Python -*-
2
3# Configuration file for the 'lit' test runner.
4
5import os
6import platform
7import subprocess
8
9import lit.formats
10import lit.util
11
12# name: The name of this test suite.
13config.name = "Clang-Unit"
14
15# suffixes: A list of file extensions to treat as test files.
16config.suffixes = []
17
18# test_source_root: The root path where tests are located.
19# test_exec_root: The root path where tests should be run.
20config.test_exec_root = os.path.join(config.clang_obj_root, "unittests")
21config.test_source_root = config.test_exec_root
22
23# testFormat: The test format to use to interpret tests.
24config.test_format = lit.formats.GoogleTest(config.llvm_build_mode, "Tests")
25
26# Propagate the temp directory. Windows requires this because it uses \Windows\
27# if none of these are present.
28for v in ["TMP", "TEMP", "HOME", "SystemDrive"]:
29    if v in os.environ:
30        config.environment[v] = os.environ[v]
31
32# Propagate sanitizer options.
33for var in [
34    "ASAN_SYMBOLIZER_PATH",
35    "HWASAN_SYMBOLIZER_PATH",
36    "MSAN_SYMBOLIZER_PATH",
37    "TSAN_SYMBOLIZER_PATH",
38    "UBSAN_SYMBOLIZER_PATH",
39    "ASAN_OPTIONS",
40    "HWASAN_OPTIONS",
41    "MSAN_OPTIONS",
42    "TSAN_OPTIONS",
43    "UBSAN_OPTIONS",
44]:
45    if var in os.environ:
46        config.environment[var] = os.environ[var]
47
48
49def find_shlibpath_var():
50    if platform.system() in ["Linux", "FreeBSD", "NetBSD", "OpenBSD", "SunOS"]:
51        yield "LD_LIBRARY_PATH"
52    elif platform.system() == "Darwin":
53        yield "DYLD_LIBRARY_PATH"
54    elif platform.system() == "Windows":
55        yield "PATH"
56    elif platform.system() == "AIX":
57        yield "LIBPATH"
58
59
60for shlibpath_var in find_shlibpath_var():
61    # in stand-alone builds, shlibdir is clang's build tree
62    # while llvm_libs_dir is installed LLVM (and possibly older clang)
63    shlibpath = os.path.pathsep.join(
64        (
65            config.shlibdir,
66            config.llvm_libs_dir,
67            config.environment.get(shlibpath_var, ""),
68        )
69    )
70    config.environment[shlibpath_var] = shlibpath
71    break
72else:
73    lit_config.warning(
74        "unable to inject shared library path on '{}'".format(platform.system())
75    )
76
77# It is not realistically possible to account for all options that could
78# possibly be present in system and user configuration files, so disable
79# default configs for the test runs.
80config.environment["CLANG_NO_DEFAULT_CONFIG"] = "1"
81