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-rw-r--r--lib/ubsan/ubsan_init.cpp64
1 files changed, 64 insertions, 0 deletions
diff --git a/lib/ubsan/ubsan_init.cpp b/lib/ubsan/ubsan_init.cpp
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index 000000000000..1a3b7d372674
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+++ b/lib/ubsan/ubsan_init.cpp
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+//===-- 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 "ubsan_diag.h"
+#include "ubsan_init.h"
+#include "ubsan_flags.h"
+#include "sanitizer_common/sanitizer_common.h"
+#include "sanitizer_common/sanitizer_libc.h"
+#include "sanitizer_common/sanitizer_mutex.h"
+#include "sanitizer_common/sanitizer_symbolizer.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 CommonStandaloneInit() {
+ SanitizerToolName = GetSanititizerToolName();
+ CacheBinaryName();
+ InitializeFlags();
+ __sanitizer_set_report_path(common_flags()->log_path);
+ AndroidLogInit();
+ InitializeCoverage(common_flags()->coverage, common_flags()->coverage_dir);
+ CommonInit();
+}
+
+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