[Lldb-commits] [lldb] [lldb][Windows] Append access-violation detail to lldb-server stop description (PR #203301)

Charles Zablit via lldb-commits lldb-commits at lists.llvm.org
Thu Jun 11 08:58:44 PDT 2026


================
@@ -24,49 +28,31 @@ namespace lldb_private {
 // notification of events that happen in a debugged process.
 class ExceptionRecord {
 public:
-  ExceptionRecord(const EXCEPTION_RECORD &record, lldb::tid_t thread_id) {
-    // Notes about the `record.ExceptionRecord` field:
-    // In the past, some code tried to parse the nested exception with it, but
-    // in practice, that code just causes Access Violation. I suspect
-    // `ExceptionRecord` here actually points to the address space of the
-    // debuggee process. However, I did not manage to find any official or
-    // unofficial reference that clarifies this point. If anyone would like to
-    // reimplement this, please also keep in mind to check how this behaves when
-    // debugging a WOW64 process. I suspect you may have to use the explicit
-    // `EXCEPTION_RECORD32` and `EXCEPTION_RECORD64` structs.
-    m_code = record.ExceptionCode;
-    m_continuable = (record.ExceptionFlags == 0);
-    m_exception_addr = reinterpret_cast<lldb::addr_t>(record.ExceptionAddress);
-    m_thread_id = thread_id;
-    m_arguments.assign(record.ExceptionInformation,
-                       record.ExceptionInformation + record.NumberParameters);
-  }
+  ExceptionRecord(const EXCEPTION_RECORD &record, lldb::tid_t thread_id);
 
   // MINIDUMP_EXCEPTIONs are almost identical to EXCEPTION_RECORDs.
-  ExceptionRecord(const MINIDUMP_EXCEPTION &record, lldb::tid_t thread_id)
-      : m_code(record.ExceptionCode), m_continuable(record.ExceptionFlags == 0),
-        m_exception_addr(static_cast<lldb::addr_t>(record.ExceptionAddress)),
-        m_thread_id(thread_id),
-        m_arguments(record.ExceptionInformation,
-                    record.ExceptionInformation + record.NumberParameters) {}
+  ExceptionRecord(const MINIDUMP_EXCEPTION &record, lldb::tid_t thread_id);
 
   virtual ~ExceptionRecord() = default;
 
-  DWORD
-  GetExceptionCode() const { return m_code; }
+  unsigned long GetExceptionValue() const { return m_code; }
   bool IsContinuable() const { return m_continuable; }
   lldb::addr_t GetExceptionAddress() const { return m_exception_addr; }
 
   lldb::tid_t GetThreadID() const { return m_thread_id; }
 
-  const std::vector<ULONG_PTR>& GetExceptionArguments() const { return m_arguments; }
+  const std::vector<unsigned long long> &GetExceptionArguments() const {
----------------
charles-zablit wrote:

Fixed, thanks!

https://github.com/llvm/llvm-project/pull/203301


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