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Daniel Dunbar1db467f2009-07-31 05:54:17 +00001# -*- Python -*-
2
Daniel Dunbar5e01e3c2009-09-22 05:16:02 +00003import os
Daniel Dunbarb850ddd2009-09-22 10:08:03 +00004import platform
Daniel Dunbar724827f2009-09-08 16:39:23 +00005
Daniel Dunbar1db467f2009-07-31 05:54:17 +00006# Configuration file for the 'lit' test runner.
7
Daniel Dunbar5e01e3c2009-09-22 05:16:02 +00008# name: The name of this test suite.
9config.name = 'Clang'
Daniel Dunbar724827f2009-09-08 16:39:23 +000010
Daniel Dunbar5e01e3c2009-09-22 05:16:02 +000011# testFormat: The test format to use to interpret tests.
Daniel Dunbar1db467f2009-07-31 05:54:17 +000012#
Daniel Dunbar5e01e3c2009-09-22 05:16:02 +000013# For now we require '&&' between commands, until they get globally killed and
14# the test runner updated.
Daniel Dunbarb850ddd2009-09-22 10:08:03 +000015execute_external = platform.system() != 'Windows'
Daniel Dunbarbc20ef32009-11-08 01:47:35 +000016config.test_format = lit.formats.ShTest(execute_external)
Daniel Dunbar6827f3f2009-09-06 01:31:12 +000017
Daniel Dunbar5e01e3c2009-09-22 05:16:02 +000018# suffixes: A list of file extensions to treat as test files.
19config.suffixes = ['.c', '.cpp', '.m', '.mm']
20
21# test_source_root: The root path where tests are located.
22config.test_source_root = os.path.dirname(__file__)
23
24# test_exec_root: The root path where tests should be run.
25clang_obj_root = getattr(config, 'clang_obj_root', None)
26if clang_obj_root is not None:
27 config.test_exec_root = os.path.join(clang_obj_root, 'test')
28
29# Set llvm_{src,obj}_root for use by others.
30config.llvm_src_root = getattr(config, 'llvm_src_root', None)
31config.llvm_obj_root = getattr(config, 'llvm_obj_root', None)
32
33# Tweak the PATH to include the tools dir and the scripts dir.
34if clang_obj_root is not None:
35 llvm_tools_dir = getattr(config, 'llvm_tools_dir', None)
36 if not llvm_tools_dir:
37 lit.fatal('No LLVM tools dir set!')
Daniel Dunbaree45d6d2009-09-24 06:31:08 +000038 path = os.path.pathsep.join((llvm_tools_dir, config.environment['PATH']))
Daniel Dunbar5e01e3c2009-09-22 05:16:02 +000039 config.environment['PATH'] = path
40
Daniel Dunbar9e10cc72009-09-26 07:36:09 +000041 llvm_libs_dir = getattr(config, 'llvm_libs_dir', None)
42 if not llvm_libs_dir:
43 lit.fatal('No LLVM libs dir set!')
44 path = os.path.pathsep.join((llvm_libs_dir,
45 config.environment.get('LD_LIBRARY_PATH','')))
46 config.environment['LD_LIBRARY_PATH'] = path
47
Daniel Dunbar5e01e3c2009-09-22 05:16:02 +000048###
49
50# Check that the object root is known.
51if config.test_exec_root is None:
52 # Otherwise, we haven't loaded the site specific configuration (the user is
53 # probably trying to run on a test file directly, and either the site
54 # configuration hasn't been created by the build system, or we are in an
55 # out-of-tree build situation).
56
Daniel Dunbarb258d8f2009-11-05 16:36:19 +000057 # Check for 'clang_site_config' user parameter, and use that if available.
58 site_cfg = lit.params.get('clang_site_config', None)
59 if site_cfg and os.path.exists(site_cfg):
60 lit.load_config(config, site_cfg)
61 raise SystemExit
62
Daniel Dunbar5e01e3c2009-09-22 05:16:02 +000063 # Try to detect the situation where we are using an out-of-tree build by
64 # looking for 'llvm-config'.
65 #
66 # FIXME: I debated (i.e., wrote and threw away) adding logic to
67 # automagically generate the lit.site.cfg if we are in some kind of fresh
Daniel Dunbar23354212009-11-07 23:53:17 +000068 # build situation. This means knowing how to invoke the build system though,
69 # and I decided it was too much magic. We should solve this by just having
70 # the .cfg files generated during the configuration step.
Daniel Dunbar5e01e3c2009-09-22 05:16:02 +000071
72 llvm_config = lit.util.which('llvm-config', config.environment['PATH'])
73 if not llvm_config:
74 lit.fatal('No site specific configuration available!')
75
76 # Get the source and object roots.
77 llvm_src_root = lit.util.capture(['llvm-config', '--src-root']).strip()
78 llvm_obj_root = lit.util.capture(['llvm-config', '--obj-root']).strip()
79 clang_src_root = os.path.join(llvm_src_root, "tools", "clang")
80 clang_obj_root = os.path.join(llvm_obj_root, "tools", "clang")
81
82 # Validate that we got a tree which points to here, using the standard
83 # tools/clang layout.
84 this_src_root = os.path.dirname(config.test_source_root)
85 if os.path.realpath(clang_src_root) != os.path.realpath(this_src_root):
86 lit.fatal('No site specific configuration available!')
87
88 # Check that the site specific configuration exists.
89 site_cfg = os.path.join(clang_obj_root, 'test', 'lit.site.cfg')
90 if not os.path.exists(site_cfg):
91 lit.fatal('No site specific configuration available!')
92
93 # Okay, that worked. Notify the user of the automagic, and reconfigure.
94 lit.note('using out-of-tree build at %r' % clang_obj_root)
95 lit.load_config(config, site_cfg)
96 raise SystemExit
97
98###
99
100# Discover the 'clang' and 'clangcc' to use.
101
102import os
103
104def inferClang(PATH):
105 # Determine which clang to use.
106 clang = os.getenv('CLANG')
107
108 # If the user set clang in the environment, definitely use that and don't
109 # try to validate.
110 if clang:
111 return clang
112
113 # Otherwise look in the path.
114 clang = lit.util.which('clang', PATH)
115
116 if not clang:
117 lit.fatal("couldn't find 'clang' program, try setting "
118 "CLANG in your environment")
119
120 return clang
121
Daniel Dunbare1fa0962010-03-20 21:13:08 +0000122# When running under valgrind, we mangle '-vg' onto the end of the triple so we
123# can check it with XFAIL and XTARGET.
124if lit.useValgrind:
125 config.target_triple += '-vg'
126
Daniel Dunbar5e01e3c2009-09-22 05:16:02 +0000127config.clang = inferClang(config.environment['PATH'])
128if not lit.quiet:
129 lit.note('using clang: %r' % config.clang)
Daniel Dunbara5728872009-12-15 20:14:24 +0000130config.substitutions.append( ('%clang_cc1', config.clang + ' -cc1') )
Daniel Dunbar66430962010-02-18 18:10:26 +0000131config.substitutions.append( ('%clangxx', ' ' + config.clang + ' -ccc-cxx'))
Daniel Dunbar80737ad2009-12-15 22:01:24 +0000132config.substitutions.append( ('%clang', ' ' + config.clang + ' ') )
Daniel Dunbara5728872009-12-15 20:14:24 +0000133
Daniel Dunbar80737ad2009-12-15 22:01:24 +0000134# FIXME: Find nicer way to prohibit this.
135config.substitutions.append(
136 (' clang ', """*** Do not use 'clang' in tests, use '%clang'. ***""") )
137config.substitutions.append(
Daniel Dunbar679d6052010-02-17 20:31:01 +0000138 (' clang++ ', """*** Do not use 'clang++' in tests, use '%clangxx'. ***"""))
139config.substitutions.append(
Daniel Dunbar80737ad2009-12-15 22:01:24 +0000140 (' clang-cc ',
141 """*** Do not use 'clang-cc' in tests, use '%clang_cc1'. ***""") )
142config.substitutions.append(
143 (' clang -cc1 ',
144 """*** Do not use 'clang -cc1' in tests, use '%clang_cc1'. ***""") )