lit.cfg revision 3105d85dc4e12fc7c69cbafc269facab7543fac1 
1# -*- Python -*-
2
3# Configuration file for the 'lit' test runner.
4
5import os
6
7# name: The name of this test suite.
8config.name = 'LLVM-Unit'
9
10# suffixes: A list of file extensions to treat as test files.
11config.suffixes = []
12
13# test_source_root: The root path where tests are located.
14# test_exec_root: The root path where tests should be run.
15llvm_obj_root = getattr(config, 'llvm_obj_root', None)
16if llvm_obj_root is not None:
17    config.test_exec_root = os.path.join(llvm_obj_root, 'unittests')
18    config.test_source_root = config.test_exec_root
19
20# testFormat: The test format to use to interpret tests.
21llvm_build_mode = getattr(config, 'llvm_build_mode', "Debug")
22config.test_format = lit.formats.GoogleTest(llvm_build_mode, 'Tests')
23
24# Propagate the temp directory. Windows requires this because it uses \Windows\
25# if none of these are present.
26if 'TMP' in os.environ:
27    config.environment['TMP'] = os.environ['TMP']
28if 'TEMP' in os.environ:
29    config.environment['TEMP'] = os.environ['TEMP']
30
31# Propagate path to symbolizer for ASan/MSan.
32for symbolizer in ['ASAN_SYMBOLIZER_PATH', 'MSAN_SYMBOLIZER_PATH']:
33    if symbolizer in os.environ:
34        config.environment[symbolizer] = os.environ[symbolizer]
35
36###
37
38# Check that the object root is known.
39if config.test_exec_root is None:
40    # Otherwise, we haven't loaded the site specific configuration (the user is
41    # probably trying to run on a test file directly, and either the site
42    # configuration hasn't been created by the build system, or we are in an
43    # out-of-tree build situation).
44
45    # Check for 'llvm_unit_site_config' user parameter, and use that if available.
46    site_cfg = lit.params.get('llvm_unit_site_config', None)
47    if site_cfg and os.path.exists(site_cfg):
48        lit.load_config(config, site_cfg)
49        raise SystemExit
50
51    # Try to detect the situation where we are using an out-of-tree build by
52    # looking for 'llvm-config'.
53    #
54    # FIXME: I debated (i.e., wrote and threw away) adding logic to
55    # automagically generate the lit.site.cfg if we are in some kind of fresh
56    # build situation. This means knowing how to invoke the build system
57    # though, and I decided it was too much magic.
58
59    llvm_config = lit.util.which('llvm-config', config.environment['PATH'])
60    if not llvm_config:
61        lit.fatal('No site specific configuration available!')
62
63    # Get the source and object roots.
64    llvm_src_root = lit.util.capture(['llvm-config', '--src-root']).strip()
65    llvm_obj_root = lit.util.capture(['llvm-config', '--obj-root']).strip()
66
67    # Validate that we got a tree which points to here.
68    this_src_root = os.path.join(os.path.dirname(__file__),'..','..')
69    if os.path.realpath(llvm_src_root) != os.path.realpath(this_src_root):
70        lit.fatal('No site specific configuration available!')
71
72    # Check that the site specific configuration exists.
73    site_cfg = os.path.join(llvm_obj_root, 'test', 'Unit', 'lit.site.cfg')
74    if not os.path.exists(site_cfg):
75        lit.fatal('No site specific configuration available!')
76
77    # Okay, that worked. Notify the user of the automagic, and reconfigure.
78    lit.note('using out-of-tree build at %r' % llvm_obj_root)
79    lit.load_config(config, site_cfg)
80    raise SystemExit
81
82# If necessary, point the dynamic loader at libLLVM.so.
83if config.enable_shared:
84    shlibpath = config.environment.get(config.shlibpath_var,'')
85    if shlibpath:
86        shlibpath = os.pathsep + shlibpath
87    shlibpath = config.shlibdir + shlibpath
88    config.environment[config.shlibpath_var] = shlibpath
89