From f17b06901049e54dbfa8b01c278cdc2e3ae5d62d Mon Sep 17 00:00:00 2001
From: Martin Simmons <martin@lispworks.com>
Date: Wed, 5 Nov 2014 14:47:39 +0000
Subject: [PATCH] gdbstub: Add a missing case of signal number translation in
 gdbstub

While using qemu with gdb "target remote" to debug an application that uses
fork and exec, the qemu process receives SIGSTOP every time the forked process
terminates (sending SIGCHLD).

This is caused by a missing call to gdb_signal_to_target in gdbstub.c, which
is fixed by this patch:

Signed-off-by: Martin Simmons <martin@lispworks.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
---
 gdbstub.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/gdbstub.c b/gdbstub.c
index d1b5afd8fed..0faca568d91 100644
--- a/gdbstub.c
+++ b/gdbstub.c
@@ -823,7 +823,10 @@ static int gdb_handle_packet(GDBState *s, const char *line_buf)
                 action = *p++;
                 signal = 0;
                 if (action == 'C' || action == 'S') {
-                    signal = strtoul(p, (char **)&p, 16);
+                    signal = gdb_signal_to_target(strtoul(p, (char **)&p, 16));
+                    if (signal == -1) {
+                        signal = 0;
+                    }
                 } else if (action != 'c' && action != 's') {
                     res = 0;
                     break;