forked from OSchip/llvm-project
87 lines
3.5 KiB
Python
87 lines
3.5 KiB
Python
# -*- Python -*-
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import os
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# Setup config name.
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config.name = 'MemorySanitizer'
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# Setup source root.
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config.test_source_root = os.path.dirname(__file__)
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def DisplayNoConfigMessage():
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lit.fatal("No site specific configuration available! " +
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"Try running your test from the build tree or running " +
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"make check-msan")
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# Figure out LLVM source root.
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llvm_src_root = getattr(config, 'llvm_src_root', None)
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if llvm_src_root is None:
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# We probably haven't loaded the site-specific configuration: the user
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# is likely trying to run a test file directly, and the site configuration
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# wasn't created by the build system.
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msan_site_cfg = lit.params.get('msan_site_config', None)
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if (msan_site_cfg) and (os.path.exists(msan_site_cfg)):
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lit.load_config(config, msan_site_cfg)
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raise SystemExit
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# Try to guess the location of site-specific configuration using llvm-config
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# util that can point where the build tree is.
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llvm_config = lit.util.which("llvm-config", config.environment["PATH"])
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if not llvm_config:
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DisplayNoConfigMessage()
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# Validate that llvm-config points to the same source tree.
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llvm_src_root = lit.util.capture(["llvm-config", "--src-root"]).strip()
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msan_test_src_root = os.path.join(llvm_src_root, "projects", "compiler-rt",
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"lib", "msan", "lit_tests")
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if (os.path.realpath(msan_test_src_root) !=
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os.path.realpath(config.test_source_root)):
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DisplayNoConfigMessage()
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# Find out the presumed location of generated site config.
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llvm_obj_root = lit.util.capture(["llvm-config", "--obj-root"]).strip()
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msan_site_cfg = os.path.join(llvm_obj_root, "projects", "compiler-rt",
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"lib", "msan", "lit_tests", "lit.site.cfg")
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if (not msan_site_cfg) or (not os.path.exists(msan_site_cfg)):
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DisplayNoConfigMessage()
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lit.load_config(config, msan_site_cfg)
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raise SystemExit
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# Setup attributes common for all compiler-rt projects.
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compiler_rt_lit_cfg = os.path.join(llvm_src_root, "projects", "compiler-rt",
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"lib", "lit.common.cfg")
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if (not compiler_rt_lit_cfg) or (not os.path.exists(compiler_rt_lit_cfg)):
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lit.fatal("Can't find common compiler-rt lit config at: %r"
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% compiler_rt_lit_cfg)
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lit.load_config(config, compiler_rt_lit_cfg)
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# Setup default compiler flags used with -fsanitize=memory option.
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clang_msan_cflags = ["-fsanitize=memory",
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"-mno-omit-leaf-frame-pointer",
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"-fno-omit-frame-pointer",
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"-fno-optimize-sibling-calls",
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"-g",
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"-fPIE",
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"-pie"]
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clang_msan_cxxflags = ["-ccc-cxx "] + clang_msan_cflags
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config.substitutions.append( ("%clang_msan ",
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" ".join([config.clang] + clang_msan_cflags) +
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" ") )
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config.substitutions.append( ("%clangxx_msan ",
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" ".join([config.clang] + clang_msan_cxxflags) +
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" ") )
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# Setup path to external LLVM symbolizer to run MemorySanitizer output tests.
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llvm_tools_dir = getattr(config, 'llvm_tools_dir', None)
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if llvm_tools_dir:
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llvm_symbolizer_path = os.path.join(llvm_tools_dir, "llvm-symbolizer")
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config.environment['MSAN_SYMBOLIZER_PATH'] = llvm_symbolizer_path
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# Default test suffixes.
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config.suffixes = ['.c', '.cc', '.cpp']
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# MemorySanitizer tests are currently supported on Linux only.
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if config.host_os not in ['Linux']:
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config.unsupported = True
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