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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-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_STOPINFOMACHEXCEPTION_H10#define LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_STOPINFOMACHEXCEPTION_H11 12#include <optional>13#include <string>14 15#include "lldb/Target/StopInfo.h"16 17#if defined(__APPLE__)18// Needed for the EXC_* defines19#include <mach/exception.h>20#endif21 22namespace lldb_private {23 24class StopInfoMachException : public StopInfo {25 /// Determine the pointer-authentication related failure that caused this26 /// exception. Returns true and fills out the failure description if there27 /// is auth-related failure, and returns false otherwise.28 bool DeterminePtrauthFailure(ExecutionContext &exe_ctx);29 30 bool DetermineTagMismatch(ExecutionContext &exe_ctx);31 32public:33 // Constructors and Destructors34 StopInfoMachException(Thread &thread, uint32_t exc_type,35 uint32_t exc_data_count, uint64_t exc_code,36 uint64_t exc_subcode,37 bool not_stepping_but_got_singlestep_exception)38 : StopInfo(thread, exc_type), m_exc_data_count(exc_data_count),39 m_exc_code(exc_code), m_exc_subcode(exc_subcode),40 m_not_stepping_but_got_singlestep_exception(41 not_stepping_but_got_singlestep_exception) {}42 43 ~StopInfoMachException() override = default;44 45 lldb::StopReason GetStopReason() const override {46 return lldb::eStopReasonException;47 }48 49 const char *GetDescription() override;50 51#if defined(__APPLE__)52 struct MachException {53 static const char *Name(exception_type_t exc_type);54 static std::optional<exception_type_t> ExceptionCode(const char *name);55 };56#endif57 58 // Since some mach exceptions will be reported as breakpoints, signals,59 // or trace, we use this static accessor which will translate the mach60 // exception into the correct StopInfo.61 static lldb::StopInfoSP CreateStopReasonWithMachException(62 Thread &thread, uint32_t exc_type, uint32_t exc_data_count,63 uint64_t exc_code, uint64_t exc_sub_code, uint64_t exc_sub_sub_code,64 bool pc_already_adjusted = true, bool adjust_pc_if_needed = false);65 66 bool WasContinueInterrupted(Thread &thread) override;67 68protected:69 uint32_t m_exc_data_count;70 uint64_t m_exc_code;71 uint64_t m_exc_subcode;72 73 bool m_not_stepping_but_got_singlestep_exception;74};75 76} // namespace lldb_private77 78#endif // LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_STOPINFOMACHEXCEPTION_H79