gdbstub: Update gdb_handlesig() and gdb_signalled() Coding Style

In particular reindent to 4 instead of 2 spaces.

Prepares for changing cpu_single_step() argument in gdb_handlesig().

Signed-off-by: Andreas Färber <afaerber@suse.de>

gdbstub.c

@@ -2761,66 +2761,66 @@ gdb_queuesig (void)
 }
 
 int
-gdb_handlesig (CPUArchState *env, int sig)
+gdb_handlesig(CPUArchState *env, int sig)
 {
-  GDBState *s;
-  char buf[256];
-  int n;
+    GDBState *s;
+    char buf[256];
+    int n;
 
-  s = gdbserver_state;
-  if (gdbserver_fd < 0 || s->fd < 0)
-    return sig;
+    s = gdbserver_state;
+    if (gdbserver_fd < 0 || s->fd < 0) {
+        return sig;
+    }
 
-  /* disable single step if it was enabled */
-  cpu_single_step(env, 0);
-  tb_flush(env);
+    /* disable single step if it was enabled */
+    cpu_single_step(env, 0);
+    tb_flush(env);
 
-  if (sig != 0)
-    {
-      snprintf(buf, sizeof(buf), "S%02x", target_signal_to_gdb (sig));
-      put_packet(s, buf);
-    }
-  /* put_packet() might have detected that the peer terminated the 
-     connection.  */
-  if (s->fd < 0)
-      return sig;
-
-  sig = 0;
-  s->state = RS_IDLE;
-  s->running_state = 0;
-  while (s->running_state == 0) {
-      n = read (s->fd, buf, 256);
-      if (n > 0)
-        {
-          int i;
+    if (sig != 0) {
+        snprintf(buf, sizeof(buf), "S%02x", target_signal_to_gdb(sig));
+        put_packet(s, buf);
+    }
+    /* put_packet() might have detected that the peer terminated the
+       connection.  */
+    if (s->fd < 0) {
+        return sig;
+    }
 
-          for (i = 0; i < n; i++)
-            gdb_read_byte (s, buf[i]);
-        }
-      else if (n == 0 || errno != EAGAIN)
-        {
-          /* XXX: Connection closed.  Should probably wait for another
-             connection before continuing.  */
-          return sig;
+    sig = 0;
+    s->state = RS_IDLE;
+    s->running_state = 0;
+    while (s->running_state == 0) {
+        n = read(s->fd, buf, 256);
+        if (n > 0) {
+            int i;
+
+            for (i = 0; i < n; i++) {
+                gdb_read_byte(s, buf[i]);
+            }
+        } else if (n == 0 || errno != EAGAIN) {
+            /* XXX: Connection closed.  Should probably wait for another
+               connection before continuing.  */
+            return sig;
         }
-  }
-  sig = s->signal;
-  s->signal = 0;
-  return sig;
+    }
+    sig = s->signal;
+    s->signal = 0;
+    return sig;
 }
 
 /* Tell the remote gdb that the process has exited due to SIG.  */
 void gdb_signalled(CPUArchState *env, int sig)
 {
-  GDBState *s;
-  char buf[4];
+    GDBState *s;
+    char buf[4];
 
-  s = gdbserver_state;
-  if (gdbserver_fd < 0 || s->fd < 0)
-    return;
+    s = gdbserver_state;
+    if (gdbserver_fd < 0 || s->fd < 0) {
+        return;
+    }
 
-  snprintf(buf, sizeof(buf), "X%02x", target_signal_to_gdb (sig));
-  put_packet(s, buf);
+    snprintf(buf, sizeof(buf), "X%02x", target_signal_to_gdb(sig));
+    put_packet(s, buf);
 }
 
 static void gdb_accept(void)