mdebug

commit 166f335337989ee9ac1c92a5f126c4d0b9d49f70
parent d979098fd07f9d2a78f6c3c120683b1e682d21bc
Author: Brian Swetland <swetland@frotz.net>
Date:   Tue, 23 Jun 2015 21:57:49 -0700

debugger: straighten out locking, fix display corruption

Diffstat:
M
tools/debugger-core.c
 | 
12
+++---------
M
tools/gdb-bridge.c
 | 
9
+++++++--

2 files changed, 10 insertions(+), 11 deletions(-)
diff --git a/tools/debugger-core.c b/tools/debugger-core.c
@@ -114,22 +114,14 @@ static pthread_t _listen_master;
 void *gdb_listener(void *arg) {
 	int fd;
 	if ((fd = socket_listen_tcp(5555)) < 0) {
-		linenoisePause();
-		xprintf("gdb_listener() cannot bind to 5555\n");
-		linenoiseResume();
+		fprintf(stderr, "gdb_listener() cannot bind to 5555\n");
 		return NULL;
 	}
 	for (;;) {
 		int s = accept(fd, NULL, NULL);
 		if (s >= 0) {
-			linenoisePause();
-			xprintf("[ gdb connected ]\n");
-			linenoiseResume();
 			gdb_server(s);
 			close(s);
-			linenoisePause();
-			xprintf("[ gdb disconnected ]\n");
-			linenoiseResume();
 		}
 	}
 	return NULL;
@@ -430,7 +422,9 @@ static int _debugger_exec(const char *cmd, unsigned argc, param *argv) {
 		if (!strcasecmp(cmd, c->name)) {
 			int n;
 			debugger_lock();
+			linenoisePause();
 			n = c->func(argc, argv);
+			linenoiseResume();
 			debugger_unlock();
 			return n;
 		}
diff --git a/tools/gdb-bridge.c b/tools/gdb-bridge.c
@@ -284,7 +284,7 @@ static void handle_query(struct gdbcnxn *gc, char *cmd, char *args) {
 			p+=2;
 		}
 		*cmd = 0;
-		zprintf("GBD: %s\n", p);
+		zprintf("GDB: %s\n", args);
 		debugger_unlock();
 		debugger_command(args);
 		debugger_lock();
@@ -580,6 +580,7 @@ void gdb_server(int fd) {
 	if (pipefds[0] == -1) {
 		if (pipe(pipefds)) ;
 	}
+	zprintf("[ gdb connected ]\n");
 	debugger_unlock();
 
 //	gc.flags |= F_TRACE;
@@ -623,7 +624,7 @@ void gdb_server(int fd) {
 			r = read(fd, iobuf, sizeof(iobuf));
 			if (r <= 0) {
 				if (errno == EINTR) continue;
-				return;
+				break;
 			}
 			len = r;
 			ptr = iobuf;
@@ -638,4 +639,8 @@ void gdb_server(int fd) {
 			if (read(fds[1].fd, &x, 1) < 0) ;
 		}
 	}
+
+	debugger_lock();
+	zprintf("[ gdb connected ]\n");
+	debugger_unlock();
 }