Fix PR threads/19422 - show which thread caused stop

[deliverable/binutils-gdb.git] / gdb / extension.c

diff --git a/gdb/extension.c b/gdb/extension.c
index 5c23bcc698f7f3d4a2855103f938a6fb402f2fa7..d2c5669e0eda5f0cae68607aa937a8a918e53c80 100644 (file)
--- a/gdb/extension.c
+++ b/gdb/extension.c
@@ -22,6 +22,7 @@
 
 #include "defs.h"
 #include <signal.h>
+#include "target.h"
 #include "auto-load.h"
 #include "breakpoint.h"
 #include "event-top.h"
@@ -746,19 +747,24 @@ set_active_ext_lang (const struct extension_language_defn *now_active)
     = XCNEW (struct active_ext_lang_state);
 
   previous->ext_lang = active_ext_lang;
+  previous->sigint_handler.handler_saved = 0;
   active_ext_lang = now_active;
 
-  /* If the newly active extension language uses cooperative SIGINT handling
-     then ensure GDB's SIGINT handler is installed.  */
-  if (now_active->language == EXT_LANG_GDB
-      || now_active->ops->check_quit_flag != NULL)
-    install_gdb_sigint_handler (&previous->sigint_handler);
-
-  /* If there's a SIGINT recorded in the cooperative extension languages,
-     move it to the new language, or save it in GDB's global flag if the newly
-     active extension language doesn't use cooperative SIGINT handling.  */
-  if (check_quit_flag ())
-    set_quit_flag ();
+  if (target_terminal_is_ours ())
+    {
+      /* If the newly active extension language uses cooperative SIGINT
+        handling then ensure GDB's SIGINT handler is installed.  */
+      if (now_active->language == EXT_LANG_GDB
+         || now_active->ops->check_quit_flag != NULL)
+       install_gdb_sigint_handler (&previous->sigint_handler);
+
+      /* If there's a SIGINT recorded in the cooperative extension languages,
+        move it to the new language, or save it in GDB's global flag if the
+        newly active extension language doesn't use cooperative SIGINT
+        handling.  */
+      if (check_quit_flag ())
+       set_quit_flag ();
+    }
 
   return previous;
 }
@@ -772,16 +778,19 @@ restore_active_ext_lang (struct active_ext_lang_state *previous)
 
   active_ext_lang = previous->ext_lang;
 
-  /* Restore the previous SIGINT handler if one was saved.  */
-  if (previous->sigint_handler.handler_saved)
-    install_sigint_handler (&previous->sigint_handler);
-
-  /* If there's a SIGINT recorded in the cooperative extension languages,
-     move it to the new language, or save it in GDB's global flag if the newly
-     active extension language doesn't use cooperative SIGINT handling.  */
-  if (check_quit_flag ())
-    set_quit_flag ();
-
+  if (target_terminal_is_ours ())
+    {
+      /* Restore the previous SIGINT handler if one was saved.  */
+      if (previous->sigint_handler.handler_saved)
+       install_sigint_handler (&previous->sigint_handler);
+
+      /* If there's a SIGINT recorded in the cooperative extension languages,
+        move it to the new language, or save it in GDB's global flag if the
+        newly active extension language doesn't use cooperative SIGINT
+        handling.  */
+      if (check_quit_flag ())
+       set_quit_flag ();
+    }
   xfree (previous);
 }