1 files changed, 97 insertions, 0 deletions
diff --git a/lib/asan/lit_tests/lit.cfg b/lib/asan/lit_tests/lit.cfg
new file mode 100644
index 000000000000..7875281b1f2f
--- /dev/null
+++ b/lib/asan/lit_tests/lit.cfg
@@ -0,0 +1,97 @@
+# -*- Python -*-
+
+import os
+
+# Setup config name.
+config.name = 'AddressSanitizer'
+
+# 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-asan")
+
+# 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.
+  asan_site_cfg = lit.params.get('asan_site_config', None)
+  if (asan_site_cfg) and (os.path.exists(asan_site_cfg)):
+    lit.load_config(config, asan_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()
+  asan_test_src_root = os.path.join(llvm_src_root, "projects", "compiler-rt",
+                                    "lib", "asan", "lit_tests")
+  if (os.path.realpath(asan_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()
+  asan_site_cfg = os.path.join(llvm_obj_root, "projects", "compiler-rt",
+                               "lib", "asan", "lit_tests", "lit.site.cfg")
+  if (not asan_site_cfg) or (not os.path.exists(asan_site_cfg)):
+    DisplayNoConfigMessage()
+
+  lit.load_config(config, asan_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 default compiler flags used with -fsanitize=address option.
+# FIXME: Review the set of required flags and check if it can be reduced.
+clang_asan_cxxflags = ("-ccc-cxx "
+                      + "-fsanitize=address "
+                      + "-mno-omit-leaf-frame-pointer "
+                      + "-fno-omit-frame-pointer "
+                      + "-fno-optimize-sibling-calls "
+                      + "-g")
+config.substitutions.append( ("%clangxx_asan ", (" " + config.clang + " " +
+                                                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['LLVM_SYMBOLIZER_PATH'] = os.path.join(
+      llvm_tools_dir, "llvm-symbolizer")
+
+# Setup path to symbolizer script.
+# FIXME: Instead we should copy this script to the build tree and point
+#        at it there.
+asan_source_dir = os.path.join(config.test_source_root, "..")
+symbolizer = os.path.join(asan_source_dir,
+                         'scripts', 'asan_symbolize.py')
+if not os.path.exists(symbolizer):
+  lit.fatal("Can't find symbolizer script on path %r" % symbolizer)
+# Define %symbolize substitution that filters output through
+# symbolizer and c++filt (for demangling).
+config.substitutions.append( ("%symbolize ", (" " + symbolizer +
+                                              " | c++filt " )))
+
+# 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']
+
+# AddressSanitizer tests are currently supported on Linux and Darwin only.
+if config.host_os not in ['Linux', 'Darwin']:
+  config.unsupported = True