From: Martin Simmons <martin@lispworks.com>
Date: Wed, 5 Nov 2014 14:47:39 +0000 (+0000)
Subject: gdbstub: Add a missing case of signal number translation in gdbstub
X-Git-Tag: qemu-xen-4.6.0-rc1~79^2~6
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=f17b06901049e54dbfa8b01c278cdc2e3ae5d62d;p=qemu-upstream-unstable.git

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>
---

diff --git a/gdbstub.c b/gdbstub.c
index d1b5afd8f..0faca568d 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;