Define the path to llvm-symbolizer tool in a common config to reduce copy-paste

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@185286 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/asan/lit_tests/lit.cfg b/lib/asan/lit_tests/lit.cfg
index c215651..71b284f 100644
--- a/lib/asan/lit_tests/lit.cfg
+++ b/lib/asan/lit_tests/lit.cfg
@@ -67,10 +67,7 @@
                                                 clang_asan_cxxflags + " ")) )
 
 # Setup path to external LLVM symbolizer to run AddressSanitizer output tests.
-llvm_tools_dir = getattr(config, 'llvm_tools_dir', None)
-if llvm_tools_dir:
-  config.environment['ASAN_SYMBOLIZER_PATH'] = os.path.join(
-       llvm_tools_dir, "llvm-symbolizer")
+config.environment['ASAN_SYMBOLIZER_PATH'] = config.llvm_symbolizer_path
 
 # Define CHECK-%os to check for OS-dependent output.
 config.substitutions.append( ('CHECK-%os', ("CHECK-" + config.host_os)))
diff --git a/lib/lit.common.cfg b/lib/lit.common.cfg
index dd67295..b19d687 100644
--- a/lib/lit.common.cfg
+++ b/lib/lit.common.cfg
@@ -40,6 +40,9 @@
 path = os.path.pathsep.join((llvm_tools_dir, config.environment['PATH']))
 config.environment['PATH'] = path
 
+# Define path to external llvm-symbolizer tool.
+config.llvm_symbolizer_path  = os.path.join(llvm_tools_dir, "llvm-symbolizer")
+
 # Use ugly construction to explicitly prohibit "clang", "clang++" etc.
 # in RUN lines.
 config.substitutions.append(
diff --git a/lib/lsan/lit_tests/lit.common.cfg b/lib/lsan/lit_tests/lit.common.cfg
index cf5ccd5..dfae8db 100644
--- a/lib/lsan/lit_tests/lit.common.cfg
+++ b/lib/lsan/lit_tests/lit.common.cfg
@@ -12,10 +12,6 @@
               "to lit.site.cfg " % attr_name)
   return attr_value
 
-# Setup path to external LLVM symbolizer to run LeakSanitizer output tests.
-llvm_tools_dir = get_required_attr(config, 'llvm_tools_dir')
-config.llvm_symbolizer_path  = os.path.join(llvm_tools_dir, "llvm-symbolizer")
-
 # Setup source root.
 lsan_lit_src_root = get_required_attr(config, 'lsan_lit_src_root')
 config.test_source_root = os.path.join(lsan_lit_src_root, 'TestCases')
diff --git a/lib/msan/lit_tests/lit.cfg b/lib/msan/lit_tests/lit.cfg
index e047a26..0a39626 100644
--- a/lib/msan/lit_tests/lit.cfg
+++ b/lib/msan/lit_tests/lit.cfg
@@ -63,10 +63,7 @@
                               " ") )
 
 # Setup path to external LLVM symbolizer to run MemorySanitizer 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")
-  config.environment['MSAN_SYMBOLIZER_PATH'] = llvm_symbolizer_path
+config.environment['MSAN_SYMBOLIZER_PATH'] = config.llvm_symbolizer_path
 
 # Default test suffixes.
 config.suffixes = ['.c', '.cc', '.cpp']
diff --git a/lib/tsan/lit_tests/lit.cfg b/lib/tsan/lit_tests/lit.cfg
index 6dc4654..af78828 100644
--- a/lib/tsan/lit_tests/lit.cfg
+++ b/lib/tsan/lit_tests/lit.cfg
@@ -50,11 +50,8 @@
 
 # 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
+# Set path to external LLVM symbolizer to run ThreadSanitizer output tests.
+tsan_options += " " + "external_symbolizer_path=" + config.llvm_symbolizer_path
 
 config.environment['TSAN_OPTIONS'] = tsan_options