1 //===-- StopInfoMachException.h ---------------------------------*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #ifndef LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_STOPINFOMACHEXCEPTION_H
10 #define LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_STOPINFOMACHEXCEPTION_H
11 
12 #include <string>
13 
14 #include "lldb/Target/StopInfo.h"
15 
16 namespace lldb_private {
17 
18 class StopInfoMachException : public StopInfo {
19   /// Determine the pointer-authentication related failure that caused this
20   /// exception. Returns true and fills out the failure description if there
21   /// is auth-related failure, and returns false otherwise.
22   bool DeterminePtrauthFailure(ExecutionContext &exe_ctx);
23 
24 public:
25   // Constructors and Destructors
26   StopInfoMachException(Thread &thread, uint32_t exc_type,
27                         uint32_t exc_data_count, uint64_t exc_code,
28                         uint64_t exc_subcode)
29       : StopInfo(thread, exc_type), m_exc_data_count(exc_data_count),
30         m_exc_code(exc_code), m_exc_subcode(exc_subcode) {}
31 
32   ~StopInfoMachException() override = default;
33 
34   lldb::StopReason GetStopReason() const override {
35     return lldb::eStopReasonException;
36   }
37 
38   const char *GetDescription() override;
39 
40   // Since some mach exceptions will be reported as breakpoints, signals,
41   // or trace, we use this static accessor which will translate the mach
42   // exception into the correct StopInfo.
43   static lldb::StopInfoSP CreateStopReasonWithMachException(
44       Thread &thread, uint32_t exc_type, uint32_t exc_data_count,
45       uint64_t exc_code, uint64_t exc_sub_code, uint64_t exc_sub_sub_code,
46       bool pc_already_adjusted = true, bool adjust_pc_if_needed = false);
47 
48 protected:
49   uint32_t m_exc_data_count;
50   uint64_t m_exc_code;
51   uint64_t m_exc_subcode;
52 };
53 
54 } // namespace lldb_private
55 
56 #endif // LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_STOPINFOMACHEXCEPTION_H
57