toplev: avoid recursive emergency_dump_function

	* toplev.c (dumpfile.h): New include.
	(internal_error_reentered): New static function.  Use it...
	(internal_error_function): ...here to handle reentered internal_error.


git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@250854 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 12 insertions, 0 deletions

diff --git a/gcc/toplev.c b/gcc/toplev.c
index b28f1847c83..48a79e28d99 100644
--- a/gcc/toplev.c
+++ b/gcc/toplev.c
@@ -80,6 +80,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "hsa-common.h"
 #include "edit-context.h"
 #include "tree-pass.h"
+#include "dumpfile.h"
 
 #if defined(DBX_DEBUGGING_INFO) || defined(XCOFF_DEBUGGING_INFO)
 #include "dbxout.h"
@@ -1064,11 +1065,22 @@ open_auxiliary_file (const char *ext)
   return file;
 }
 
+/* Alternative diagnostics callback for reentered ICE reporting.  */
+
+static void
+internal_error_reentered (diagnostic_context *, const char *, va_list *)
+{
+  /* Flush the dump file if emergency_dump_function itself caused an ICE.  */
+  if (dump_file)
+    fflush (dump_file);
+}
+
 /* Auxiliary callback for the diagnostics code.  */
 
 static void
 internal_error_function (diagnostic_context *, const char *, va_list *)
 {
+  global_dc->internal_error = internal_error_reentered;
   warn_if_plugins ();
   emergency_dump_function ();
 }