lit.cfg revision 38d439fb13ae465d53767c1c912abf40e64d6ee4 
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###
25
26# If necessary, point the dynamic loader at libLLVM.so.
27if config.enable_shared:
28    shlibpath = config.environment.get(config.shlibpath_var,'')
29    if shlibpath:
30        shlibpath = os.pathsep + shlibpath
31    shlibpath = config.shlibdir + shlibpath
32    config.environment[config.shlibpath_var] = shlibpath
33
34# Check that the object root is known.
35if config.test_exec_root is None:
36    # Otherwise, we haven't loaded the site specific configuration (the user is
37    # probably trying to run on a test file directly, and either the site
38    # configuration hasn't been created by the build system, or we are in an
39    # out-of-tree build situation).
40
41    # Check for 'llvm_unit_site_config' user parameter, and use that if available.
42    site_cfg = lit.params.get('llvm_unit_site_config', None)
43    if site_cfg and os.path.exists(site_cfg):
44        lit.load_config(config, site_cfg)
45        raise SystemExit
46
47    # Try to detect the situation where we are using an out-of-tree build by
48    # looking for 'llvm-config'.
49    #
50    # FIXME: I debated (i.e., wrote and threw away) adding logic to
51    # automagically generate the lit.site.cfg if we are in some kind of fresh
52    # build situation. This means knowing how to invoke the build system
53    # though, and I decided it was too much magic.
54
55    llvm_config = lit.util.which('llvm-config', config.environment['PATH'])
56    if not llvm_config:
57        lit.fatal('No site specific configuration available!')
58
59    # Get the source and object roots.
60    llvm_src_root = lit.util.capture(['llvm-config', '--src-root']).strip()
61    llvm_obj_root = lit.util.capture(['llvm-config', '--obj-root']).strip()
62
63    # Validate that we got a tree which points to here.
64    this_src_root = os.path.join(os.path.dirname(__file__),'..','..')
65    if os.path.realpath(llvm_src_root) != os.path.realpath(this_src_root):
66        lit.fatal('No site specific configuration available!')
67
68    # Check that the site specific configuration exists.
69    site_cfg = os.path.join(llvm_obj_root, 'test', 'Unit', 'lit.site.cfg')
70    if not os.path.exists(site_cfg):
71        lit.fatal('No site specific configuration available!')
72
73    # Okay, that worked. Notify the user of the automagic, and reconfigure.
74    lit.note('using out-of-tree build at %r' % llvm_obj_root)
75    lit.load_config(config, site_cfg)
76    raise SystemExit
77