[Qemu-devel] [PATCH v1 1/1] gdbserver: Keep VM state status replies from happening during a syscall

[Meador Inge <meadori@codesourcery.com>]

Fix an issue where the GDB server implementation was allowing 'RUN_STATE_DEBUG'
transitions to send a signal trap status back to the GDB client while a syscall
is being processed.  This eventually resulted in sending a SIGINT to the GDB
client.

Signed-off-by: Meador Inge <meadori@codesourcery.com>
---
 gdbstub.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/gdbstub.c b/gdbstub.c
index 7d470b6..34d2717 100644
--- a/gdbstub.c
+++ b/gdbstub.c
@@ -2480,7 +2480,6 @@ void gdb_do_syscall(gdb_syscall_complete_cb cb, const char *fmt, ...)
 #ifndef CONFIG_USER_ONLY
     vm_stop(RUN_STATE_DEBUG);
 #endif
-    s->state = RS_IDLE;
     va_start(va, fmt);
     p = buf;
     *(p++) = 'F';
@@ -2557,6 +2556,8 @@ static void gdb_read_byte(GDBState *s, int ch)
 #endif
     {
         switch(s->state) {
+        case RS_SYSCALL:
+            s->state = RS_IDLE;
         case RS_IDLE:
             if (ch == '$') {
                 s->line_buf_index = 0;
-- 
1.7.7.6