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# -*- Python -*-
import os
# Setup config name.
config.name = 'ThreadSanitizer'
# Setup source root.
config.test_source_root = os.path.dirname(__file__)
def DisplayNoConfigMessage():
lit.fatal("No site specific configuration available! " +
"Try running your test from the build tree or running " +
"make check-tsan")
# Figure out LLVM source root.
llvm_src_root = getattr(config, 'llvm_src_root', None)
if llvm_src_root is None:
# We probably haven't loaded the site-specific configuration: the user
# is likely trying to run a test file directly, and the site configuration
# wasn't created by the build system.
tsan_site_cfg = lit.params.get('tsan_site_config', None)
if (tsan_site_cfg) and (os.path.exists(tsan_site_cfg)):
lit.load_config(config, tsan_site_cfg)
raise SystemExit
# Try to guess the location of site-specific configuration using llvm-config
# util that can point where the build tree is.
llvm_config = lit.util.which("llvm-config", config.environment["PATH"])
if not llvm_config:
DisplayNoConfigMessage()
# Validate that llvm-config points to the same source tree.
llvm_src_root = lit.util.capture(["llvm-config", "--src-root"]).strip()
tsan_test_src_root = os.path.join(llvm_src_root, "projects", "compiler-rt",
"lib", "tsan", "lit_tests")
if (os.path.realpath(tsan_test_src_root) !=
os.path.realpath(config.test_source_root)):
DisplayNoConfigMessage()
# Find out the presumed location of generated site config.
llvm_obj_root = lit.util.capture(["llvm-config", "--obj-root"]).strip()
tsan_site_cfg = os.path.join(llvm_obj_root, "projects", "compiler-rt",
"lib", "tsan", "lit_tests", "lit.site.cfg")
if (not tsan_site_cfg) or (not os.path.exists(tsan_site_cfg)):
DisplayNoConfigMessage()
lit.load_config(config, tsan_site_cfg)
raise SystemExit
# Setup attributes common for all compiler-rt projects.
compiler_rt_lit_cfg = os.path.join(llvm_src_root, "projects", "compiler-rt",
"lib", "lit.common.cfg")
if (not compiler_rt_lit_cfg) or (not os.path.exists(compiler_rt_lit_cfg)):
lit.fatal("Can't find common compiler-rt lit config at: %r"
% compiler_rt_lit_cfg)
lit.load_config(config, compiler_rt_lit_cfg)
# Setup environment variables for running ThreadSanitizer.
tsan_options = "atexit_sleep_ms=0"
# Get path to external LLVM symbolizer to run ThreadSanitizer output tests.
llvm_tools_dir = getattr(config, 'llvm_tools_dir', None)
if llvm_tools_dir:
llvm_symbolizer_path = os.path.join(llvm_tools_dir, "llvm-symbolizer")
tsan_options += " " + "external_symbolizer_path=" + llvm_symbolizer_path
config.environment['TSAN_OPTIONS'] = tsan_options
# Setup default compiler flags used with -fsanitize=thread option.
# FIXME: Review the set of required flags and check if it can be reduced.
clang_tsan_cflags = ("-fsanitize=thread "
+ "-g "
+ "-Wall "
+ "-lpthread "
+ "-ldl ")
clang_tsan_cxxflags = "-ccc-cxx " + clang_tsan_cflags
config.substitutions.append( ("%clangxx_tsan ", (" " + config.clang + " " +
clang_tsan_cxxflags + " ")) )
config.substitutions.append( ("%clang_tsan ", (" " + config.clang + " " +
clang_tsan_cflags + " ")) )
# Define CHECK-%os to check for OS-dependent output.
config.substitutions.append( ('CHECK-%os', ("CHECK-" + config.host_os)))
# Default test suffixes.
config.suffixes = ['.c', '.cc', '.cpp']
# ThreadSanitizer tests are currently supported on Linux only.
if config.host_os not in ['Linux']:
config.unsupported = True
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