gdb/gdb-btrobust.patch

From FEDORA_PATCHES Mon Sep 17 00:00:00 2001
From: Fedora GDB patches <invalid@email.com>
Date: Fri, 27 Oct 2017 21:07:50 +0200
Subject: gdb-btrobust.patch

;; Continue backtrace even if a frame filter throws an exception (Phil Muldoon).
;;=push

This should fix the error  with glib.  An error message will still be
printed, but a default backtrace will occur in this case.

--

diff --git a/gdb/python/py-framefilter.c b/gdb/python/py-framefilter.c
--- a/gdb/python/py-framefilter.c
+++ b/gdb/python/py-framefilter.c
@@ -1204,6 +1204,7 @@ gdbpy_apply_frame_filter (const struct extension_language_defn *extlang,
 				       htab_eq_pointer,
 				       NULL));
 
+  int count_printed = 0;
   while (true)
     {
       gdbpy_ref<> item (PyIter_Next (iterable.get ()));
@@ -1212,8 +1213,8 @@ gdbpy_apply_frame_filter (const struct extension_language_defn *extlang,
 	{
 	  if (PyErr_Occurred ())
 	    {
-	      gdbpy_print_stack_or_quit ();
-	      return EXT_LANG_BT_ERROR;
+	      gdbpy_print_stack ();
+	      return count_printed > 0 ? EXT_LANG_BT_ERROR : EXT_LANG_BT_NO_FILTERS;
 	    }
 	  break;
 	}
@@ -1245,7 +1246,8 @@ gdbpy_apply_frame_filter (const struct extension_language_defn *extlang,
       /* Do not exit on error printing a single frame.  Print the
 	 error and continue with other frames.  */
       if (success == EXT_LANG_BT_ERROR)
-	gdbpy_print_stack_or_quit ();
+	gdbpy_print_stack ();
+      count_printed++;
     }
 
   return success;
diff --git a/gdb/testsuite/gdb.python/py-framefilter.exp b/gdb/testsuite/gdb.python/py-framefilter.exp
--- a/gdb/testsuite/gdb.python/py-framefilter.exp
+++ b/gdb/testsuite/gdb.python/py-framefilter.exp
@@ -277,9 +277,20 @@ gdb_test_multiple "bt 1" $test {
 # Now verify that we can see a quit.
 gdb_test_no_output "python name_error = KeyboardInterrupt" \
     "Change ErrorFilter to throw KeyboardInterrupt"
-gdb_test "bt 1" "Quit" "bt 1 with KeyboardInterrupt"
-
-
+set re1 [multi_line \
+	     "Python Exception <class 'KeyboardInterrupt'> whoops: " \
+	     "\\(More stack frames follow\.\.\.\\)"]
+set re2 [multi_line \
+	     "Python Exception <type 'exceptions.KeyboardInterrupt'> whoops: " \
+	     "\\(More stack frames follow\.\.\.\\)"]
+gdb_test_multiple "bt 1" "" {
+    -re -wrap $re1 {
+	pass $gdb_test_name
+    }
+    -re -wrap $re2 {
+	pass $gdb_test_name
+    }
+}
 # Test with no debuginfo
 
 # We cannot use prepare_for_testing as we have to set the safe-patch