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-rw-r--r--lib/ubsan/ubsan_diag_standalone.cpp40
1 files changed, 40 insertions, 0 deletions
diff --git a/lib/ubsan/ubsan_diag_standalone.cpp b/lib/ubsan/ubsan_diag_standalone.cpp
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+++ b/lib/ubsan/ubsan_diag_standalone.cpp
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+//===-- ubsan_diag_standalone.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
+//
+//===----------------------------------------------------------------------===//
+//
+// Diagnostic reporting for the standalone UBSan runtime.
+//
+//===----------------------------------------------------------------------===//
+
+#include "ubsan_platform.h"
+#if CAN_SANITIZE_UB
+#include "ubsan_diag.h"
+
+using namespace __ubsan;
+
+void __sanitizer::BufferedStackTrace::UnwindImpl(
+ uptr pc, uptr bp, void *context, bool request_fast, u32 max_depth) {
+ uptr top = 0;
+ uptr bottom = 0;
+ if (StackTrace::WillUseFastUnwind(request_fast)) {
+ GetThreadStackTopAndBottom(false, &top, &bottom);
+ Unwind(max_depth, pc, bp, nullptr, top, bottom, true);
+ } else
+ Unwind(max_depth, pc, bp, context, 0, 0, false);
+}
+
+extern "C" {
+SANITIZER_INTERFACE_ATTRIBUTE
+void __sanitizer_print_stack_trace() {
+ GET_CURRENT_PC_BP;
+ BufferedStackTrace stack;
+ stack.Unwind(pc, bp, nullptr, common_flags()->fast_unwind_on_fatal);
+ stack.Print();
+}
+} // extern "C"
+
+#endif // CAN_SANITIZE_UB