[GCC 4.8] Initial check-in of GCC 4.8.0

Change-Id: I0719d8a6d0f69b367a6ab6f10eb75622dbf12771

1 files changed, 88 insertions, 0 deletions

diff --git a/gcc-4.8/gcc/ada/tb-ivms.c b/gcc-4.8/gcc/ada/tb-ivms.c
new file mode 100644
index 000000000..3d55c6e86
--- /dev/null
+++ b/gcc-4.8/gcc/ada/tb-ivms.c
@@ -0,0 +1,88 @@
+/****************************************************************************
+ *                                                                          *
+ *                         GNAT RUN-TIME COMPONENTS                         *
+ *                                                                          *
+ *                 T R A C E B A C K - I t a n i u m  / V M S               *
+ *                                                                          *
+ *                          C Implementation File                           *
+ *                                                                          *
+ *                     Copyright (C) 2007-2011, AdaCore                     *
+ *                                                                          *
+ * GNAT is free software;  you can  redistribute it  and/or modify it under *
+ * terms of the  GNU General Public License as published  by the Free Soft- *
+ * ware  Foundation;  either version 3,  or (at your option) any later ver- *
+ * sion.  GNAT is distributed in the hope that it will be useful, but WITH- *
+ * OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY *
+ * or FITNESS FOR A PARTICULAR PURPOSE.                                     *
+ *                                                                          *
+ * As a special exception 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/>.                                          *
+ *                                                                          *
+ * GNAT was originally developed  by the GNAT team at  New York University. *
+ * Extensive contributions were provided by Ada Core Technologies Inc.      *
+ *                                                                          *
+ ****************************************************************************/
+
+/* Itanium Open/VMS implementation of backtrace.  Use ICB (Invocation
+   Context Block) routines.  */
+#include <stdlib.h>
+#include <vms/libicb.h>
+
+/* Declare libicb routines.  */
+extern INVO_CONTEXT_BLK *LIB$I64_CREATE_INVO_CONTEXT (void *(*)(size_t),
+						      void (*)(void *),
+						      int);
+extern void LIB$I64_FREE_INVO_CONTEXT (INVO_CONTEXT_BLK *);
+extern int LIB$I64_GET_CURR_INVO_CONTEXT(INVO_CONTEXT_BLK *);
+extern int LIB$I64_GET_PREV_INVO_CONTEXT(INVO_CONTEXT_BLK *);
+
+/* Gcc internal headers poison malloc.  So use xmalloc() when building the
+   compiler.  */
+#ifdef IN_RTS
+#define BT_MALLOC malloc
+#else
+#define BT_MALLOC xmalloc
+#endif
+
+int
+__gnat_backtrace (void **array, int size,
+                  void *exclude_min, void *exclude_max, int skip_frames)
+{
+  INVO_CONTEXT_BLK *ctxt;
+  int res = 0;
+  int n = 0;
+
+  /* Create the context.  */
+  ctxt = LIB$I64_CREATE_INVO_CONTEXT (BT_MALLOC, free, 0);
+  if (ctxt == NULL)
+    return 0;
+
+  LIB$I64_GET_CURR_INVO_CONTEXT (ctxt);
+
+  while (1)
+    {
+      void *pc = (void *)ctxt->libicb$ih_pc;
+      if (pc == (void *)0)
+	break;
+      if (ctxt->libicb$v_bottom_of_stack)
+	break;
+      if (n >= skip_frames && (pc < exclude_min || pc > exclude_max))
+	{
+	  array[res++] = (void *)(ctxt->libicb$ih_pc);
+	  if (res == size)
+	    break;
+	}
+      n++;
+      LIB$I64_GET_PREV_INVO_CONTEXT (ctxt);
+    }
+
+  /* Free the context.  */
+  LIB$I64_FREE_INVO_CONTEXT (ctxt);
+  return res;
+}