1 files changed, 81 insertions, 0 deletions
diff --git a/libjava/sysdep/ia64.c b/libjava/sysdep/ia64.c
new file mode 100644
index 0000000..f3c4761
--- /dev/null
+++ b/libjava/sysdep/ia64.c
@@ -0,0 +1,81 @@
+/* Copyright (C) 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+   2000 Free Software Foundation, Inc.
+
+This file is part of GNU CC.
+
+GNU CC 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 2, or (at your option)
+any later version.
+
+GNU CC 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.
+
+You should have received a copy of the GNU General Public License
+along with GNU CC; see the file COPYING.  If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+/* As a special exception, if you link this library with other files,
+   some of which are compiled with GCC, to produce an executable,
+   this library does not by itself cause the resulting executable
+   to be covered by the GNU General Public License.
+   This exception does not however invalidate any other reasons why
+   the executable file might be covered by the GNU General Public License.  */
+
+#include <stddef.h>
+#include <memory.h>
+
+#define IA64_UNWIND_INFO
+#include "ia64-frame.h"
+
+static int 
+ia64_backtrace_helper (void **array, void *throw_pc, 
+		       ia64_frame_state *throw_frame,
+		       ia64_frame_state *frame, void *bsp, int size)
+{
+  void *pc = NULL;
+  int frame_count = 0;
+  unwind_info_ptr *info;
+
+  asm volatile ("flushrs");  /*  Make the local register stacks available.  */
+    
+  /* Start at our stack frame, get our state.  */
+  info = build_ia64_frame_state (throw_pc, throw_frame, bsp, NULL);
+
+  memcpy (frame, throw_frame, sizeof (*frame));
+
+  while (info && frame_count < size)
+    {
+      pc = array[frame_count++] = get_real_reg_value (&frame->rp);
+      --pc;
+      bsp = calc_caller_bsp 
+	((long)get_real_reg_value (&frame->pfs), frame->my_bsp);
+      info = build_ia64_frame_state (pc, frame, bsp, NULL);
+      if (frame->rp.loc_type == IA64_UNW_LOC_TYPE_NONE) /* We've finished. */
+	break;
+    }
+
+  return frame_count;
+}
+  
+int
+_Jv_ia64_backtrace (void **array, int size)
+{
+  ia64_frame_state my_frame;
+  ia64_frame_state originator;	/* For the context handler is in.  */
+  void *bsp;
+ 
+  /* Do any necessary initialization to access arbitrary stack frames.
+     This forces gcc to save memory in our stack frame for saved
+     registers. */
+  __builtin_unwind_init ();
+
+label_ia64:
+  bsp = __builtin_ia64_bsp ();
+  
+  return ia64_backtrace_helper (array, &&label_ia64, &my_frame, 
+				&originator, bsp, size);
+}