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[PULL,05/11] gdbstub: Add a missing case of signal number translation in gdbstub

Message ID f17b06901049e54dbfa8b01c278cdc2e3ae5d62d.1415716845.git.mjt@msgid.tls.msk.ru
State New
Headers show

Commit Message

Michael Tokarev Nov. 11, 2014, 2:46 p.m. UTC 
From: Martin Simmons <martin@lispworks.com>

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(-)
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Patch

diff --git a/gdbstub.c b/gdbstub.c
index d1b5afd..0faca56 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;