fdc9dfc8e4
This introduces the new `ARCHER_OPTIONS` flag `ignore_serial=0|1` to disable analysis and logging of memory accesses in the sequential part of the OpenMP application. In the sequential part of an OpenMP program no data race is possible, unless there is non-OpenMP concurrency (such as pthreads, MPI, ...). For the latter reason, this is not active by default. Besides reducing the runtime overhead for the sequential part of the program, this reduces the memory overhead for sequential initialization. In combination with `flush_shadow=1` this can allow analysis of applications, which run close to the limit of available memory, but only access smaller parts of shared memory during each OpenMP parallel region. A problem for this approach is that Archer only gets active, when the OpenMP runtime gets initialized, which might be after serial initialization of the application. In such case, it helps to call for example `omp_get_max_threads()` at the beginning of main. Differential Revision: https://reviews.llvm.org/D90473
130 lines
5.1 KiB
Python
130 lines
5.1 KiB
Python
# -*- Python -*- vim: set ft=python ts=4 sw=4 expandtab tw=79:
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# Configuration file for the 'lit' test runner.
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import os
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import re
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import subprocess
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import lit.formats
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# Tell pylint that we know config and lit_config exist somewhere.
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if 'PYLINT_IMPORT' in os.environ:
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config = object()
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lit_config = object()
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def append_dynamic_library_path(path):
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if config.operating_system == 'Windows':
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name = 'PATH'
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sep = ';'
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elif config.operating_system == 'Darwin':
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name = 'DYLD_LIBRARY_PATH'
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sep = ':'
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else:
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name = 'LD_LIBRARY_PATH'
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sep = ':'
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if name in config.environment:
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config.environment[name] = path + sep + config.environment[name]
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else:
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config.environment[name] = path
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# name: The name of this test suite.
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config.name = 'libarcher'
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# suffixes: A list of file extensions to treat as test files.
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config.suffixes = ['.c', '.cpp']
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# test_source_root: The root path where tests are located.
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config.test_source_root = os.path.dirname(__file__)
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# test_exec_root: The root object directory where output is placed
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config.test_exec_root = config.libarcher_obj_root
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# test format
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config.test_format = lit.formats.ShTest()
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# compiler flags
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config.test_flags = " -I " + config.test_source_root + \
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" -I " + config.omp_header_dir + \
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" -L " + config.omp_library_dir + \
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" -Wl,-rpath," + config.omp_library_dir + \
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" " + config.test_archer_flags + \
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" " + config.test_extra_flags
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config.archer_flags = "-g -O1 -fsanitize=thread"
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# extra libraries
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libs = ""
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if config.has_libatomic:
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libs += " -latomic"
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# Allow XFAIL to work
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config.target_triple = [ ]
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for feature in config.test_compiler_features:
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config.available_features.add(feature)
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# Setup environment to find dynamic library at runtime
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append_dynamic_library_path(config.omp_library_dir)
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append_dynamic_library_path(config.libarcher_obj_root+"/..")
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# Rpath modifications for Darwin
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if config.operating_system == 'Darwin':
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config.test_flags += " -Wl,-rpath," + config.omp_library_dir
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# Find the SDK on Darwin
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if config.operating_system == 'Darwin':
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cmd = subprocess.Popen(['xcrun', '--show-sdk-path'],
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stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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out, err = cmd.communicate()
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out = out.strip()
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res = cmd.wait()
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if res == 0 and out:
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config.test_flags += " -isysroot " + out
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if 'Linux' in config.operating_system:
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config.available_features.add("linux")
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if config.has_tsan == True:
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config.available_features.add("tsan")
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# to run with icc INTEL_LICENSE_FILE must be set
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if 'INTEL_LICENSE_FILE' in os.environ:
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config.environment['INTEL_LICENSE_FILE'] = os.environ['INTEL_LICENSE_FILE']
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# Race Tests
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config.substitutions.append(("%libarcher-compile-and-run-race-noserial", \
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"%libarcher-compile && env ARCHER_OPTIONS=ignore_serial=1 %libarcher-run-race"))
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config.substitutions.append(("%libarcher-compile-and-run-race", \
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"%libarcher-compile && %libarcher-run-race"))
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config.substitutions.append(("%libarcher-compile-and-run-nosuppression", \
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"%libarcher-compile && %libarcher-run-nosuppression"))
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config.substitutions.append(("%libarcher-compile-and-run", \
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"%libarcher-compile && %libarcher-run"))
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config.substitutions.append(("%libarcher-cxx-compile-and-run", \
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"%libarcher-cxx-compile && %libarcher-run"))
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config.substitutions.append(("%libarcher-cxx-compile", \
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"%clang-archerXX %openmp_flags %archer_flags %flags -std=c++14 %s -o %t" + libs))
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config.substitutions.append(("%libarcher-compile", \
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"%clang-archer %openmp_flags %archer_flags %flags %s -o %t" + libs))
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config.substitutions.append(("%libarcher-run-race", "%suppression %deflake %t 2>&1 | tee %t.log"))
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config.substitutions.append(("%libarcher-run-nosuppression", "%nosuppression %t 2>&1 | tee %t.log"))
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config.substitutions.append(("%libarcher-run", "%suppression %t 2>&1 | tee %t.log"))
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config.substitutions.append(("%clang-archerXX", config.test_cxx_compiler))
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config.substitutions.append(("%clang-archer", config.test_c_compiler))
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config.substitutions.append(("%openmp_flags", config.test_openmp_flags))
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config.substitutions.append(("%archer_flags", config.archer_flags))
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config.substitutions.append(("%flags", config.test_flags))
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config.substitutions.append(("%nosuppression", "env TSAN_OPTIONS='ignore_noninstrumented_modules=0:exitcode=0'"))
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config.substitutions.append(("%suppression", "env TSAN_OPTIONS='ignore_noninstrumented_modules=0:ignore_noninstrumented_modules=1'"))
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config.substitutions.append(("%deflake", os.path.join(os.path.dirname(__file__), "deflake.bash")))
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config.substitutions.append(("FileCheck", config.test_filecheck))
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config.substitutions.append(("%not", config.test_not))
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config.substitutions.append(("%sort-threads", "sort --numeric-sort --stable"))
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if config.operating_system == 'Windows':
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# No such environment variable on Windows.
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config.substitutions.append(("%preload-tool", "true ||"))
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elif config.operating_system == 'Darwin':
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config.substitutions.append(("%preload-tool", "env DYLD_INSERT_LIBRARIES=%T/tool.so"))
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else:
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config.substitutions.append(("%preload-tool", "env LD_PRELOAD=%T/tool.so"))
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