svn commit: r351239 - head/sys/gdb

[Conrad Meyer]

Author: cem
Date: Mon Aug 19 22:58:30 2019
New Revision: 351239
URL: https://svnweb.freebsd.org/changeset/base/351239

Log:
  gdb(4): Support "qC" query
  
  Sometimes GDB gets confused about what the current thread is.  When it does,
  it asks the remote: "Who am I?"
  
  Answer it.

Modified:
  head/sys/gdb/gdb_main.c

Modified: head/sys/gdb/gdb_main.c
==============================================================================
--- head/sys/gdb/gdb_main.c	Mon Aug 19 22:57:03 2019	(r351238)
+++ head/sys/gdb/gdb_main.c	Mon Aug 19 22:58:30 2019	(r351239)
@@ -305,7 +305,13 @@ gdb_trap(int type, int code)
 			break;
 		}
 		case 'q':	/* General query. */
-			if (gdb_rx_equal("fThreadInfo")) {
+			if (gdb_rx_equal("C")) {
+				gdb_tx_begin('Q');
+				gdb_tx_char('C');
+				gdb_tx_varhex((long)kdb_thread->td_tid);
+				gdb_tx_end();
+				break;
+			} else if (gdb_rx_equal("fThreadInfo")) {
 				thr_iter = kdb_thr_first();
 				gdb_do_threadinfo(&thr_iter);
 			} else if (gdb_rx_equal("sThreadInfo")) {