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Diffstat (limited to 'test/lit.cfg')
-rw-r--r-- | test/lit.cfg | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/test/lit.cfg b/test/lit.cfg new file mode 100644 index 000000000000..60d8df057730 --- /dev/null +++ b/test/lit.cfg @@ -0,0 +1,152 @@ +# -*- Python -*- + +import os +import platform + +# Configuration file for the 'lit' test runner. + +# name: The name of this test suite. +config.name = 'Clang' + +# testFormat: The test format to use to interpret tests. +# +# For now we require '&&' between commands, until they get globally killed and +# the test runner updated. +execute_external = platform.system() != 'Windows' +config.test_format = lit.formats.ShTest(execute_external, + require_and_and = True) + +# suffixes: A list of file extensions to treat as test files. +config.suffixes = ['.c', '.cpp', '.m', '.mm'] + +# test_source_root: The root path where tests are located. +config.test_source_root = os.path.dirname(__file__) + +# test_exec_root: The root path where tests should be run. +clang_obj_root = getattr(config, 'clang_obj_root', None) +if clang_obj_root is not None: + config.test_exec_root = os.path.join(clang_obj_root, 'test') + +# Set llvm_{src,obj}_root for use by others. +config.llvm_src_root = getattr(config, 'llvm_src_root', None) +config.llvm_obj_root = getattr(config, 'llvm_obj_root', None) + +# Tweak the PATH to include the tools dir and the scripts dir. +if clang_obj_root is not None: + llvm_tools_dir = getattr(config, 'llvm_tools_dir', None) + if not llvm_tools_dir: + lit.fatal('No LLVM tools dir set!') + path = os.path.pathsep.join((llvm_tools_dir, config.environment['PATH'])) + config.environment['PATH'] = path + + llvm_libs_dir = getattr(config, 'llvm_libs_dir', None) + if not llvm_libs_dir: + lit.fatal('No LLVM libs dir set!') + path = os.path.pathsep.join((llvm_libs_dir, + config.environment.get('LD_LIBRARY_PATH',''))) + config.environment['LD_LIBRARY_PATH'] = path + +### + +# Check that the object root is known. +if config.test_exec_root is None: + # Otherwise, we haven't loaded the site specific configuration (the user is + # probably trying to run on a test file directly, and either the site + # configuration hasn't been created by the build system, or we are in an + # out-of-tree build situation). + + # Try to detect the situation where we are using an out-of-tree build by + # looking for 'llvm-config'. + # + # FIXME: I debated (i.e., wrote and threw away) adding logic to + # automagically generate the lit.site.cfg if we are in some kind of fresh + # build situation. This means knowing how to invoke the build system + # though, and I decided it was too much magic. + + llvm_config = lit.util.which('llvm-config', config.environment['PATH']) + if not llvm_config: + lit.fatal('No site specific configuration available!') + + # Get the source and object roots. + llvm_src_root = lit.util.capture(['llvm-config', '--src-root']).strip() + llvm_obj_root = lit.util.capture(['llvm-config', '--obj-root']).strip() + clang_src_root = os.path.join(llvm_src_root, "tools", "clang") + clang_obj_root = os.path.join(llvm_obj_root, "tools", "clang") + + # Validate that we got a tree which points to here, using the standard + # tools/clang layout. + this_src_root = os.path.dirname(config.test_source_root) + if os.path.realpath(clang_src_root) != os.path.realpath(this_src_root): + lit.fatal('No site specific configuration available!') + + # Check that the site specific configuration exists. + site_cfg = os.path.join(clang_obj_root, 'test', 'lit.site.cfg') + if not os.path.exists(site_cfg): + lit.fatal('No site specific configuration available!') + + # Okay, that worked. Notify the user of the automagic, and reconfigure. + lit.note('using out-of-tree build at %r' % clang_obj_root) + lit.load_config(config, site_cfg) + raise SystemExit + +### + +# Discover the 'clang' and 'clangcc' to use. + +import os + +def inferClang(PATH): + # Determine which clang to use. + clang = os.getenv('CLANG') + + # If the user set clang in the environment, definitely use that and don't + # try to validate. + if clang: + return clang + + # Otherwise look in the path. + clang = lit.util.which('clang', PATH) + + if not clang: + lit.fatal("couldn't find 'clang' program, try setting " + "CLANG in your environment") + + return clang + +def inferClangCC(clang, PATH): + clangcc = os.getenv('CLANGCC') + + # If the user set clang in the environment, definitely use that and don't + # try to validate. + if clangcc: + return clangcc + + # Otherwise try adding -cc since we expect to be looking in a build + # directory. + if clang.endswith('.exe'): + clangccName = clang[:-4] + '-cc.exe' + else: + clangccName = clang + '-cc' + clangcc = lit.util.which(clangccName, PATH) + if not clangcc: + # Otherwise ask clang. + res = lit.util.capture([clang, '-print-prog-name=clang-cc']) + res = res.strip() + if res and os.path.exists(res): + clangcc = res + + if not clangcc: + lit.fatal("couldn't find 'clang-cc' program, try setting " + "CLANGCC in your environment") + + return clangcc + +config.clang = inferClang(config.environment['PATH']) +if not lit.quiet: + lit.note('using clang: %r' % config.clang) +config.substitutions.append( (' clang ', ' ' + config.clang + ' ') ) + +config.clang_cc = inferClangCC(config.clang, config.environment['PATH']) +if not lit.quiet: + lit.note('using clang-cc: %r' % config.clang_cc) +config.substitutions.append( (' clang-cc ', ' ' + config.clang_cc + ' ') ) |