From: Doug Goldstein <cardoe@cardoe.com>
Date: Sun, 16 Mar 2014 15:47:39 +0000 (-0500)
Subject: gdb: support qAttached command from debugger
X-Git-Tag: v1.2~8^2~2
X-Git-Url: https://git.htl-mechatronik.at/public/?a=commitdiff_plain;h=6981970786d7de8e9507f0c02def6473efd76f56;p=sx%2Fsimavr.git

gdb: support qAttached command from debugger

When using avr-gdb on Ubuntu 12.04, this command is always sent
and we responded as if it was unsupported. Unfortunately avr-gdb on
Ubuntu 12.04 crashes when detaching from the process because it makes a
bad assumption somewhere, this will prevent the crash.
---

diff --git a/simavr/sim/sim_gdb.c b/simavr/sim/sim_gdb.c
index 80be31a..263b245 100644
--- a/simavr/sim/sim_gdb.c
+++ b/simavr/sim/sim_gdb.c
@@ -287,6 +287,16 @@ gdb_handle_command(
 	char rep[1024];
 	uint8_t command = *cmd++;
 	switch (command) {
+		case 'q':
+			if (strncmp(cmd, "Attached", 8) == 0) {
+				/* Respond that we are attached to an existing process..
+				 * ourselves!
+				 */
+				gdb_send_reply(g, "1");
+				break;
+			}
+			gdb_send_reply(g, "");
+			break;
 		case '?':
 			gdb_send_quick_status(g, 0);
 			break;