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      1 # -*- Python -*-
      2 
      3 # Configuration file for the 'lit' test runner.
      4 
      5 import os
      6 
      7 import lit.formats
      8 
      9 # name: The name of this test suite.
     10 config.name = 'LLVM-Unit'
     11 
     12 # suffixes: A list of file extensions to treat as test files.
     13 config.suffixes = []
     14 
     15 # is_early; Request to run this suite early.
     16 config.is_early = True
     17 
     18 # test_source_root: The root path where tests are located.
     19 # test_exec_root: The root path where tests should be run.
     20 llvm_obj_root = getattr(config, 'llvm_obj_root', None)
     21 if llvm_obj_root is not None:
     22     config.test_exec_root = os.path.join(llvm_obj_root, 'unittests')
     23     config.test_source_root = config.test_exec_root
     24 
     25 # testFormat: The test format to use to interpret tests.
     26 llvm_build_mode = getattr(config, 'llvm_build_mode', "Debug")
     27 config.test_format = lit.formats.GoogleTest(llvm_build_mode, 'Tests')
     28 
     29 # Propagate the temp directory. Windows requires this because it uses \Windows\
     30 # if none of these are present.
     31 if 'TMP' in os.environ:
     32     config.environment['TMP'] = os.environ['TMP']
     33 if 'TEMP' in os.environ:
     34     config.environment['TEMP'] = os.environ['TEMP']
     35 
     36 # Propagate path to symbolizer for ASan/MSan.
     37 for symbolizer in ['ASAN_SYMBOLIZER_PATH', 'MSAN_SYMBOLIZER_PATH']:
     38     if symbolizer in os.environ:
     39         config.environment[symbolizer] = os.environ[symbolizer]
     40 
     41 # Win32 seeks DLLs along %PATH%.
     42 if sys.platform in ['win32', 'cygwin'] and os.path.isdir(config.shlibdir):
     43     config.environment['PATH'] = os.path.pathsep.join((
     44             config.shlibdir, config.environment['PATH']))
     45 
     46 ###
     47 
     48 # Check that the object root is known.
     49 if config.test_exec_root is None:
     50     # Otherwise, we haven't loaded the site specific configuration (the user is
     51     # probably trying to run on a test file directly, and either the site
     52     # configuration hasn't been created by the build system, or we are in an
     53     # out-of-tree build situation).
     54 
     55     # Check for 'llvm_unit_site_config' user parameter, and use that if available.
     56     site_cfg = lit_config.params.get('llvm_unit_site_config', None)
     57     if site_cfg and os.path.exists(site_cfg):
     58         lit_config.load_config(config, site_cfg)
     59         raise SystemExit
     60 
     61     # Try to detect the situation where we are using an out-of-tree build by
     62     # looking for 'llvm-config'.
     63     #
     64     # FIXME: I debated (i.e., wrote and threw away) adding logic to
     65     # automagically generate the lit.site.cfg if we are in some kind of fresh
     66     # build situation. This means knowing how to invoke the build system
     67     # though, and I decided it was too much magic.
     68 
     69     llvm_config = lit.util.which('llvm-config', config.environment['PATH'])
     70     if not llvm_config:
     71         lit_config.fatal('No site specific configuration available!')
     72 
     73     # Get the source and object roots.
     74     llvm_src_root = lit.util.capture(['llvm-config', '--src-root']).strip()
     75     llvm_obj_root = lit.util.capture(['llvm-config', '--obj-root']).strip()
     76 
     77     # Validate that we got a tree which points to here.
     78     this_src_root = os.path.join(os.path.dirname(__file__),'..','..')
     79     if os.path.realpath(llvm_src_root) != os.path.realpath(this_src_root):
     80         lit_config.fatal('No site specific configuration available!')
     81 
     82     # Check that the site specific configuration exists.
     83     site_cfg = os.path.join(llvm_obj_root, 'test', 'Unit', 'lit.site.cfg')
     84     if not os.path.exists(site_cfg):
     85         lit_config.fatal('No site specific configuration available!')
     86 
     87     # Okay, that worked. Notify the user of the automagic, and reconfigure.
     88     lit_config.note('using out-of-tree build at %r' % llvm_obj_root)
     89     lit_config.load_config(config, site_cfg)
     90     raise SystemExit
     91