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1# -*- Python -*-
2
3# Configuration file for 'lit' test runner.
4# This file contains common rules for various compiler-rt testsuites.
5# It is mostly copied from lit.cfg used by Clang.
6import os
7import platform
8
9# Setup test format
10execute_external = (platform.system() != 'Windows'
11                    or lit.getBashPath() not in [None, ""])
12config.test_format = lit.formats.ShTest(execute_external)
13
14# Setup clang binary.
15clang_path = getattr(config, 'clang', None)
16if (not clang_path) or (not os.path.exists(clang_path)):
17  lit.fatal("Can't find Clang on path %r" % clang_path)
18
19# Clear some environment variables that might affect Clang.
20possibly_dangerous_env_vars = ['COMPILER_PATH', 'RC_DEBUG_OPTIONS',
21                               'CINDEXTEST_PREAMBLE_FILE', 'LIBRARY_PATH',
22                               'CPATH', 'C_INCLUDE_PATH', 'CPLUS_INCLUDE_PATH',
23                               'OBJC_INCLUDE_PATH', 'OBJCPLUS_INCLUDE_PATH',
24                               'LIBCLANG_TIMING', 'LIBCLANG_OBJTRACKING',
25                               'LIBCLANG_LOGGING', 'LIBCLANG_BGPRIO_INDEX',
26                               'LIBCLANG_BGPRIO_EDIT', 'LIBCLANG_NOTHREADS',
27                               'LIBCLANG_RESOURCE_USAGE',
28                               'LIBCLANG_CODE_COMPLETION_LOGGING']
29# Clang/Win32 may refer to %INCLUDE%. vsvarsall.bat sets it.
30if platform.system() != 'Windows':
31    possibly_dangerous_env_vars.append('INCLUDE')
32for name in possibly_dangerous_env_vars:
33  if name in config.environment:
34    del config.environment[name]
35
36# Tweak PATH to include llvm tools dir.
37llvm_tools_dir = getattr(config, 'llvm_tools_dir', None)
38if (not llvm_tools_dir) or (not os.path.exists(llvm_tools_dir)):
39  lit.fatal("Invalid llvm_tools_dir config attribute: %r" % llvm_tools_dir)
40path = os.path.pathsep.join((llvm_tools_dir, config.environment['PATH']))
41config.environment['PATH'] = path
42
43# Define path to external llvm-symbolizer tool.
44config.llvm_symbolizer_path  = os.path.join(llvm_tools_dir, "llvm-symbolizer")
45
46# Use ugly construction to explicitly prohibit "clang", "clang++" etc.
47# in RUN lines.
48config.substitutions.append(
49    (' clang', """\n\n*** Do not use 'clangXXX' in tests,
50     instead define '%clangXXX' substitution in lit config. ***\n\n""") )
51
52# Add supported compiler_rt architectures to a list of available features.
53compiler_rt_arch = getattr(config, 'compiler_rt_arch', None)
54if compiler_rt_arch:
55  for arch in compiler_rt_arch.split(";"):
56    config.available_features.add(arch + "-supported-target")
57