[binutils-gdb] Implement event-loop glue for gdbserver

[binutils-gdb] Implement event-loop glue for gdbserver

[Tom Tromey]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=e487f9949ab654b20da8ac01b8311ae956136e5e

commit e487f9949ab654b20da8ac01b8311ae956136e5e
Author: Tom Tromey <tom@tromey.com>
Date:   Mon Apr 13 12:42:59 2020 -0600

    Implement event-loop glue for gdbserver
    
    event-loop.c requires the client to provide some functions.  This
    patch implements these functions for gdbserver.
    
    gdbserver/ChangeLog
    2020-04-13  Tom Tromey  <tom@tromey.com>
    
            * server.c (invoke_async_signal_handlers)
            (check_async_event_handlers, flush_streams, gdb_select): New
            functions.

Diff:
---
 gdbserver/ChangeLog |  6 ++++++
 gdbserver/server.cc | 35 +++++++++++++++++++++++++++++++++++
 2 files changed, 41 insertions(+)

diff --git a/gdbserver/ChangeLog b/gdbserver/ChangeLog
index b5c428a5b88..309cae3d701 100644
--- a/gdbserver/ChangeLog
+++ b/gdbserver/ChangeLog
@@ -1,3 +1,9 @@
+2020-04-13  Tom Tromey  <tom@tromey.com>
+
+	* server.c (invoke_async_signal_handlers)
+	(check_async_event_handlers, flush_streams, gdb_select): New
+	functions.
+
 2020-04-13  Tom Tromey  <tom@tromey.com>
 
 	* configure: Rebuild.
diff --git a/gdbserver/server.cc b/gdbserver/server.cc
index 43962adc86c..ac7a7fd75aa 100644
--- a/gdbserver/server.cc
+++ b/gdbserver/server.cc
@@ -47,6 +47,7 @@
 
 #include "gdbsupport/selftest.h"
 #include "gdbsupport/scope-exit.h"
+#include "gdbsupport/gdb_select.h"
 
 #define require_running_or_return(BUF)		\
   if (!target_running ())			\
@@ -4477,6 +4478,40 @@ handle_target_event (int err, gdb_client_data client_data)
   return 0;
 }
 
+/* See gdbsupport/event-loop.h.  */
+
+int
+invoke_async_signal_handlers ()
+{
+  return 0;
+}
+
+/* See gdbsupport/event-loop.h.  */
+
+int
+check_async_event_handlers ()
+{
+  return 0;
+}
+
+/* See gdbsupport/errors.h  */
+
+void
+flush_streams ()
+{
+  fflush (stdout);
+  fflush (stderr);
+}
+
+/* See gdbsupport/gdb_select.h.  */
+
+int
+gdb_select (int n, fd_set *readfds, fd_set *writefds,
+	    fd_set *exceptfds, struct timeval *timeout)
+{
+  return select (n, readfds, writefds, exceptfds, timeout);
+}
+
 #if GDB_SELF_TEST
 namespace selftests
 {