1 files changed, 97 insertions, 0 deletions
diff --git a/libobjc/error.c b/libobjc/error.c
new file mode 100644
index 000000000..1dae36594
--- /dev/null
+++ b/libobjc/error.c
@@ -0,0 +1,97 @@
+/* GNU Objective C Runtime Error Functions
+   Copyright (C) 1993, 1994, 1995, 1996, 1997, 2002, 2009, 2010
+   Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the
+Free Software Foundation; either version 3, or (at your option) any
+later version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "objc-private/common.h"
+#include "objc-private/error.h"
+
+/* __USE_FIXED_PROTOTYPES__ used to be required to get prototypes for
+   malloc, free, etc. on some platforms.  It is unclear if we still
+   need it, but it can't hurt.  */
+#define __USE_FIXED_PROTOTYPES__
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+
+/* Prints an error message and aborts the program.  */
+void
+_objc_abort (const char *fmt, ...)
+{
+  va_list ap;
+
+  va_start (ap, fmt);
+  vfprintf (stderr, fmt, ap);
+  abort ();
+  va_end (ap);
+}
+
+/* The rest of the file is deprecated.  */
+#include "objc/objc-api.h" /* For objc_error_handler.  */
+
+/*
+** Error handler function
+** NULL so that default is to just print to stderr
+*/
+static objc_error_handler _objc_error_handler = NULL;
+
+/* Trigger an objc error */
+void
+objc_error (id object, int code, const char *fmt, ...)
+{
+  va_list ap;
+
+  va_start (ap, fmt);
+  objc_verror (object, code, fmt, ap);
+  va_end (ap);
+}
+
+/* Trigger an objc error */
+void
+objc_verror (id object, int code, const char *fmt, va_list ap)
+{
+  BOOL result = NO;
+
+  /* Call the error handler if its there
+     Otherwise print to stderr */
+  if (_objc_error_handler)
+    result = (*_objc_error_handler) (object, code, fmt, ap);
+  else
+    vfprintf (stderr, fmt, ap);
+
+  /* Continue if the error handler says its ok
+     Otherwise abort the program */
+  if (result)
+    return;
+  else
+    abort ();
+}
+
+/* Set the error handler */
+objc_error_handler
+objc_set_error_handler (objc_error_handler func)
+{
+  objc_error_handler temp = _objc_error_handler;
+  _objc_error_handler = func;
+  return temp;
+}