diff --git a/compiler-rt/lib/sanitizer_common/tests/lit.cfg b/compiler-rt/lib/sanitizer_common/tests/lit.cfg
deleted file mode 100644
index 071274603365..000000000000
--- a/compiler-rt/lib/sanitizer_common/tests/lit.cfg
+++ /dev/null
@@ -1,29 +0,0 @@
-# -*- Python -*-
-
-import os
-
-def get_required_attr(config, attr_name):
-  attr_value = getattr(config, attr_name, None)
-  if not attr_value:
-    lit_config.fatal(
-      "No attribute %r in test configuration! You may need to run "
-      "tests from your build directory or add this attribute "
-      "to lit.site.cfg " % attr_name)
-  return attr_value
-
-# Setup attributes common for all compiler-rt projects.
-compiler_rt_src_root = get_required_attr(config, 'compiler_rt_src_root')
-compiler_rt_lit_unit_cfg = os.path.join(compiler_rt_src_root, "lib",
-                                        "lit.common.unit.cfg")
-lit_config.load_config(config, compiler_rt_lit_unit_cfg)
-
-# Setup config name.
-config.name = 'SanitizerCommon-Unit'
-
-# Setup test source and exec root. For unit tests, we define
-# it as build directory with sanitizer_common unit tests.
-llvm_obj_root = get_required_attr(config, "llvm_obj_root")
-config.test_exec_root = os.path.join(llvm_obj_root, "projects",
-                                     "compiler-rt", "lib",
-                                     "sanitizer_common", "tests")
-config.test_source_root = config.test_exec_root
diff --git a/compiler-rt/lib/sanitizer_common/tests/lit.site.cfg.in b/compiler-rt/lib/sanitizer_common/tests/lit.site.cfg.in
index bcd69cf40b9b..5ceb9e4c5c28 100644
--- a/compiler-rt/lib/sanitizer_common/tests/lit.site.cfg.in
+++ b/compiler-rt/lib/sanitizer_common/tests/lit.site.cfg.in
@@ -1,16 +1,14 @@
 ## Autogenerated by LLVM/Clang configuration.
 # Do not edit!
 
-config.llvm_obj_root = "@LLVM_BINARY_DIR@"
-config.llvm_src_root = "@LLVM_SOURCE_DIR@"
-config.compiler_rt_src_root = "@COMPILER_RT_SOURCE_DIR@"
-config.llvm_build_mode = "@LLVM_BUILD_MODE@"
+# Load common config for all compiler-rt unit tests.
+lit_config.load_config(config, "@COMPILER_RT_BINARY_DIR@/lib/lit.common.unit.configured")
 
-try:
-  config.llvm_build_mode = config.llvm_build_mode % lit_config.params
-except KeyError,e:
-  key, = e.args
-  lit_config.fatal("unable to find %r parameter, use '--param=%s=VALUE'" % (key, key))
+# Setup config name.
+config.name = 'SanitizerCommon-Unit'
 
-# Let the main config do the real work.
-lit_config.load_config(config, "@CMAKE_CURRENT_SOURCE_DIR@/lit.cfg")
+# Setup test source and exec root. For unit tests, we define
+# it as build directory with sanitizer_common tests.
+config.test_exec_root = os.path.join("@COMPILER_RT_BINARY_DIR@", "lib",
+                                     "sanitizer_common", "tests")
+config.test_source_root = config.test_exec_root