[PATCH 01/11] Fix gdbserver/linux target_waitstatus logging assert

[Pedro Alves <pedro@palves.net>]

Turning on debug output in gdbserver leads to an assertion failure if
gdbserver reports a non-signal event:

    [threads] wait_1: LWP 3273770: extended event with waitstatus status->kind = EXECD, execd_pathname = gdb.threads/non-ldr-exc-1/non-ldr-exc-1
    [threads] wait_1: Hit a non-gdbserver trap event.
  ../../src/gdbserver/../gdb/target/waitstatus.h:365: A problem internal to GDBserver has been detected.
  sig: Assertion `m_kind == TARGET_WAITKIND_STOPPED || m_kind == TARGET_WAITKIND_SIGNALLED' failed.

Fix it in the obvious way, using target_waitstatus::to_string(),
resulting in, for example:

  [threads] wait_1: ret = LWP 1542412.1542412, status->kind = STOPPED, sig = GDB_SIGNAL_TRAP

Change-Id: Ia4832f9b4fa39f4af67fcaf21fd4d909a285a645
---
 gdbserver/linux-low.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/gdbserver/linux-low.cc b/gdbserver/linux-low.cc
index 301e42a36f3..e7c01420ae3 100644
--- a/gdbserver/linux-low.cc
+++ b/gdbserver/linux-low.cc
@@ -3493,9 +3493,9 @@ linux_process_target::wait_1 (ptid_t ptid, target_waitstatus *ourstatus,
 
   gdb_assert (step_over_bkpt == null_ptid);
 
-  threads_debug_printf ("ret = %s, %d, %d",
+  threads_debug_printf ("ret = %s, %s",
 			target_pid_to_str (ptid_of (current_thread)).c_str (),
-			ourstatus->kind (), ourstatus->sig ());
+			ourstatus->to_string ().c_str ());
 
   if (ourstatus->kind () == TARGET_WAITKIND_EXITED)
     return filter_exit_event (event_child, ourstatus);
-- 
2.26.2