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From: Marcel Moolenaar <marcel@FreeBSD.org>
To: Perforce Change Reviews <perforce@freebsd.org>
Subject: PERFORCE change 52494 for review
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http://perforce.freebsd.org/chv.cgi?CH=52494

Change 52494 by marcel@marcel_nfs on 2004/05/07 22:18:41

	Rewrite the handling of threads to use the new thread support
	functions.

Affected files ...

.. //depot/projects/gdb/sys/gdb/gdb_main.c#14 edit

Differences ...

==== //depot/projects/gdb/sys/gdb/gdb_main.c#14 (text+ko) ====

@@ -92,7 +92,7 @@
 static int
 gdb_trap(int type, int code)
 {
-	struct proc *thr_iter;
+	struct thread *thr_iter;
 
 	/*
 	 * Send a T packet. We currently do not support watchpoints (the
@@ -138,10 +138,17 @@
 			break;
 		case 'H': {	/* Set thread. */
 			intmax_t tid;
+			struct thread *thr;
 			gdb_rx_char();
 			gdb_rx_varhex(&tid);
-			if (tid > 0)
-				kdb_set_thread(tid);
+			if (tid > 0) {
+				thr = kdb_thr_lookup(tid);
+				if (thr == NULL) {
+					gdb_tx_err(ENOENT);
+					break;
+				}
+				kdb_thr_select(thr);
+			}
 			gdb_tx_ok();
 			break;
 		}
@@ -176,19 +183,19 @@
 		}
 		case 'q':	/* General query. */
 			if (gdb_rx_equal("fThreadInfo")) {
-				thr_iter = LIST_FIRST(&allproc);
+				thr_iter = kdb_thr_first();
 				gdb_tx_begin('m');
-				gdb_tx_hex(thr_iter->p_pid, 8);
+				gdb_tx_hex(thr_iter->td_tid, 8);
 				gdb_tx_end();
 			} else if (gdb_rx_equal("sThreadInfo")) {
 				if (thr_iter == NULL) {
 					gdb_tx_err(ENXIO);
 					break;
 				}
-				thr_iter = LIST_NEXT(thr_iter, p_list);
+				thr_iter = kdb_thr_next(thr_iter);
 				if (thr_iter != NULL) {
 					gdb_tx_begin('m');
-					gdb_tx_hex(thr_iter->p_pid, 8);
+					gdb_tx_hex(thr_iter->td_tid, 8);
 					gdb_tx_end();
 				} else {
 					gdb_tx_begin('l');
@@ -206,14 +213,11 @@
 		}
 		case 'T': {	/* Thread alive. */
 			intmax_t tid;
-			pid_t curtid;
 			gdb_rx_varhex(&tid);
-			curtid = kdb_thread->td_tid;
-			if (kdb_set_thread(tid))
+			if (kdb_thr_lookup(tid) != NULL)
 				gdb_tx_ok();
 			else
 				gdb_tx_err(ENOENT);
-			kdb_set_thread(curtid);
 			break;
 		}
 		case -1: