================
@@ -277,6 +286,143 @@ lldb::addr_t ProcessFreeBSDKernel::FindSymbol(const char
*name) {
return sym ? sym->GetLoadAddress(&GetTarget()) : LLDB_INVALID_ADDRESS;
}
+void ProcessFreeBSDKernel::ShowCrashInfo() {
+ Target &target = GetTarget();
+ Debugger &debugger = target.GetDebugger();
+
+ if (!debugger.GetCommandInterpreter().IsInteractive())
+ return;
+
+ Status error;
+
+ // Find msgbufp symbol (pointer to message buffer)
+ lldb::addr_t msgbufp_addr = FindSymbol("msgbufp");
+ if (msgbufp_addr == LLDB_INVALID_ADDRESS)
+ return;
+
+ // Read the pointer value
+ lldb::addr_t msgbufp = ReadPointerFromMemory(msgbufp_addr, error);
+ if (!error.Success() || msgbufp == LLDB_INVALID_ADDRESS)
+ return;
+
+ // Get the type information for struct msgbuf from DWARF
+ TypeQuery query("msgbuf");
----------------
Michael137 wrote:
Latest revision includes a check for whether the expected fields were present.
That makes it easier to adjust backwards-compatibly if the layout ever changes.
I don't have anything else to add here so I'll leave the rest of the review up
to FreeBSD/kgdb experts
https://github.com/llvm/llvm-project/pull/178027
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