Home | History | Annotate | Download | only in Unit 
      1 # -*- Python -*-
      2 
      3 # Configuration file for the 'lit' test runner.
      4 
      5 import os
      6 import platform
      7 
      8 import lit.formats
      9 import lit.util
     10 
     11 # name: The name of this test suite.
     12 config.name = 'Clang-Unit'
     13 
     14 # suffixes: A list of file extensions to treat as test files.
     15 config.suffixes = []
     16 
     17 # test_source_root: The root path where tests are located.
     18 # test_exec_root: The root path where tests should be run.
     19 clang_obj_root = getattr(config, 'clang_obj_root', None)
     20 if clang_obj_root is not None:
     21     config.test_exec_root = os.path.join(clang_obj_root, 'unittests')
     22     config.test_source_root = config.test_exec_root
     23 
     24 # testFormat: The test format to use to interpret tests.
     25 llvm_build_mode = getattr(config, 'llvm_build_mode', "Debug")
     26 config.test_format = lit.formats.GoogleTest(llvm_build_mode, 'Tests')
     27 
     28 # Propagate the temp directory. Windows requires this because it uses \Windows\
     29 # if none of these are present.
     30 if 'TMP' in os.environ:
     31     config.environment['TMP'] = os.environ['TMP']
     32 if 'TEMP' in os.environ:
     33     config.environment['TEMP'] = os.environ['TEMP']
     34 
     35 # Propagate path to symbolizer for ASan/MSan.
     36 for symbolizer in ['ASAN_SYMBOLIZER_PATH', 'MSAN_SYMBOLIZER_PATH']:
     37     if symbolizer in os.environ:
     38         config.environment[symbolizer] = os.environ[symbolizer]
     39 
     40 ###
     41 
     42 # Check that the object root is known.
     43 if config.test_exec_root is None:
     44     # Otherwise, we haven't loaded the site specific configuration (the user is
     45     # probably trying to run on a test file directly, and either the site
     46     # configuration hasn't been created by the build system, or we are in an
     47     # out-of-tree build situation).
     48 
     49     # Check for 'clang_unit_site_config' user parameter, and use that if available.
     50     site_cfg = lit_config.params.get('clang_unit_site_config', None)
     51     if site_cfg and os.path.exists(site_cfg):
     52         lit_config.load_config(config, site_cfg)
     53         raise SystemExit
     54 
     55     # Try to detect the situation where we are using an out-of-tree build by
     56     # looking for 'llvm-config'.
     57     #
     58     # FIXME: I debated (i.e., wrote and threw away) adding logic to
     59     # automagically generate the lit.site.cfg if we are in some kind of fresh
     60     # build situation. This means knowing how to invoke the build system
     61     # though, and I decided it was too much magic.
     62 
     63     llvm_config = lit.util.which('llvm-config', config.environment['PATH'])
     64     if not llvm_config:
     65         lit_config.fatal('No site specific configuration available!')
     66 
     67     # Get the source and object roots.
     68     llvm_src_root = lit.util.capture(['llvm-config', '--src-root']).strip()
     69     llvm_obj_root = lit.util.capture(['llvm-config', '--obj-root']).strip()
     70     clang_src_root = os.path.join(llvm_src_root, "tools", "clang")
     71     clang_obj_root = os.path.join(llvm_obj_root, "tools", "clang")
     72 
     73     # Validate that we got a tree which points to here, using the standard
     74     # tools/clang layout.
     75     this_src_root = os.path.join(os.path.dirname(__file__),'..','..')
     76     if os.path.realpath(clang_src_root) != os.path.realpath(this_src_root):
     77         lit_config.fatal('No site specific configuration available!')
     78 
     79     # Check that the site specific configuration exists.
     80     site_cfg = os.path.join(clang_obj_root, 'test', 'Unit', 'lit.site.cfg')
     81     if not os.path.exists(site_cfg):
     82         lit_config.fatal('No site specific configuration available!')
     83 
     84     # Okay, that worked. Notify the user of the automagic, and reconfigure.
     85     lit_config.note('using out-of-tree build at %r' % clang_obj_root)
     86     lit_config.load_config(config, site_cfg)
     87     raise SystemExit
     88 
     89 shlibpath_var = ''
     90 if platform.system() == 'Linux':
     91     shlibpath_var = 'LD_LIBRARY_PATH'
     92 elif platform.system() == 'Darwin':
     93     shlibpath_var = 'DYLD_LIBRARY_PATH'
     94 elif platform.system() == 'Windows':
     95     shlibpath_var = 'PATH'
     96 
     97 # Point the dynamic loader at dynamic libraries in 'lib'.
     98 llvm_libs_dir = getattr(config, 'llvm_libs_dir', None)
     99 if not llvm_libs_dir:
    100     lit_config.fatal('No LLVM libs dir set!')
    101 shlibpath = os.path.pathsep.join((llvm_libs_dir,
    102                                  config.environment.get(shlibpath_var,'')))
    103 
    104 # Win32 seeks DLLs along %PATH%.
    105 if sys.platform in ['win32', 'cygwin'] and os.path.isdir(config.shlibdir):
    106     shlibpath = os.path.pathsep.join((config.shlibdir, shlibpath))
    107 
    108 config.environment[shlibpath_var] = shlibpath
    109