1 files changed, 76 insertions, 0 deletions
diff --git a/contrib/llvm-project/compiler-rt/lib/ubsan/ubsan_init.cpp b/contrib/llvm-project/compiler-rt/lib/ubsan/ubsan_init.cpp
new file mode 100644
index 000000000000..5802d58896f0
--- /dev/null
+++ b/contrib/llvm-project/compiler-rt/lib/ubsan/ubsan_init.cpp
@@ -0,0 +1,76 @@
+//===-- ubsan_init.cpp ----------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// Initialization of UBSan runtime.
+//
+//===----------------------------------------------------------------------===//
+
+#include "ubsan_platform.h"
+#if CAN_SANITIZE_UB
+#include "sanitizer_common/sanitizer_common.h"
+#include "sanitizer_common/sanitizer_interface_internal.h"
+#include "sanitizer_common/sanitizer_libc.h"
+#include "sanitizer_common/sanitizer_mutex.h"
+#include "sanitizer_common/sanitizer_symbolizer.h"
+#include "ubsan_diag.h"
+#include "ubsan_flags.h"
+#include "ubsan_init.h"
+
+using namespace __ubsan;
+
+const char *__ubsan::GetSanititizerToolName() {
+  return "UndefinedBehaviorSanitizer";
+}
+
+static bool ubsan_initialized;
+static StaticSpinMutex ubsan_init_mu;
+
+static void CommonInit() {
+  InitializeSuppressions();
+}
+
+static void UbsanDie() {
+  if (common_flags()->print_module_map >= 1)
+    DumpProcessMap();
+}
+
+static void CommonStandaloneInit() {
+  SanitizerToolName = GetSanititizerToolName();
+  CacheBinaryName();
+  InitializeFlags();
+  __sanitizer::InitializePlatformEarly();
+  __sanitizer_set_report_path(common_flags()->log_path);
+  AndroidLogInit();
+  InitializeCoverage(common_flags()->coverage, common_flags()->coverage_dir);
+  CommonInit();
+
+  // Only add die callback when running in standalone mode to avoid printing
+  // the same information from multiple sanitizers' output
+  AddDieCallback(UbsanDie);
+  Symbolizer::LateInitialize();
+}
+
+void __ubsan::InitAsStandalone() {
+  SpinMutexLock l(&ubsan_init_mu);
+  if (!ubsan_initialized) {
+    CommonStandaloneInit();
+    ubsan_initialized = true;
+  }
+}
+
+void __ubsan::InitAsStandaloneIfNecessary() { return InitAsStandalone(); }
+
+void __ubsan::InitAsPlugin() {
+  SpinMutexLock l(&ubsan_init_mu);
+  if (!ubsan_initialized) {
+    CommonInit();
+    ubsan_initialized = true;
+  }
+}
+
+#endif  // CAN_SANITIZE_UB