1 files changed, 76 insertions, 0 deletions
diff --git a/contrib/llvm-project/lldb/source/Plugins/Process/Utility/StopInfoMachException.h b/contrib/llvm-project/lldb/source/Plugins/Process/Utility/StopInfoMachException.h
new file mode 100644
index 000000000000..c612ac400b4c
--- /dev/null
+++ b/contrib/llvm-project/lldb/source/Plugins/Process/Utility/StopInfoMachException.h
@@ -0,0 +1,76 @@
+//===-- StopInfoMachException.h ---------------------------------*- C++ -*-===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_STOPINFOMACHEXCEPTION_H
+#define LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_STOPINFOMACHEXCEPTION_H
+
+#include <optional>
+#include <string>
+
+#include "lldb/Target/StopInfo.h"
+
+#if defined(__APPLE__)
+// Needed for the EXC_* defines
+#include <mach/exception.h>
+#endif
+
+namespace lldb_private {
+
+class StopInfoMachException : public StopInfo {
+  /// Determine the pointer-authentication related failure that caused this
+  /// exception. Returns true and fills out the failure description if there
+  /// is auth-related failure, and returns false otherwise.
+  bool DeterminePtrauthFailure(ExecutionContext &exe_ctx);
+
+public:
+  // Constructors and Destructors
+  StopInfoMachException(Thread &thread, uint32_t exc_type,
+                        uint32_t exc_data_count, uint64_t exc_code,
+                        uint64_t exc_subcode,
+                        bool not_stepping_but_got_singlestep_exception)
+      : StopInfo(thread, exc_type), m_exc_data_count(exc_data_count),
+        m_exc_code(exc_code), m_exc_subcode(exc_subcode),
+        m_not_stepping_but_got_singlestep_exception(
+            not_stepping_but_got_singlestep_exception) {}
+
+  ~StopInfoMachException() override = default;
+
+  lldb::StopReason GetStopReason() const override {
+    return lldb::eStopReasonException;
+  }
+
+  const char *GetDescription() override;
+
+#if defined(__APPLE__)
+  struct MachException {
+    static const char *Name(exception_type_t exc_type);
+    static std::optional<exception_type_t> ExceptionCode(const char *name);
+  };
+#endif
+
+  // Since some mach exceptions will be reported as breakpoints, signals,
+  // or trace, we use this static accessor which will translate the mach
+  // exception into the correct StopInfo.
+  static lldb::StopInfoSP CreateStopReasonWithMachException(
+      Thread &thread, uint32_t exc_type, uint32_t exc_data_count,
+      uint64_t exc_code, uint64_t exc_sub_code, uint64_t exc_sub_sub_code,
+      bool pc_already_adjusted = true, bool adjust_pc_if_needed = false);
+
+  bool WasContinueInterrupted(Thread &thread) override;
+
+protected:
+  uint32_t m_exc_data_count;
+  uint64_t m_exc_code;
+  uint64_t m_exc_subcode;
+
+  bool m_not_stepping_but_got_singlestep_exception;
+};
+
+} // namespace lldb_private
+
+#endif // LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_STOPINFOMACHEXCEPTION_H