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diff --git a/gcc/frame.h b/gcc/frame.h
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+/* Header file for unwinding stack frames for exception handling.  */
+/* Compile this one with gcc.  */
+/* Copyright (C) 1997, 1998 Free Software Foundation, Inc.
+   Contributed by Jason Merrill <jason@cygnus.com>.
+
+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.  */
+
+
+typedef struct frame_state
+{
+  void *cfa;
+  void *eh_ptr;
+  long cfa_offset;
+  long args_size;
+  long reg_or_offset[FIRST_PSEUDO_REGISTER+1];
+  unsigned short cfa_reg;
+  unsigned short retaddr_column;
+  char saved[FIRST_PSEUDO_REGISTER+1];
+} frame_state;
+
+/* Values for 'saved' above.  */
+#define REG_UNSAVED 0
+#define REG_SAVED_OFFSET 1
+#define REG_SAVED_REG 2
+
+/* The representation for an "object" to be searched for frame unwind info.
+   For targets with named sections, one object is an executable or shared
+   library; for other targets, one object is one translation unit.
+
+   A copy of this structure declaration is printed by collect2.c;
+   keep the copies synchronized!  */
+
+struct object {
+  void *pc_begin;
+  void *pc_end;
+  struct dwarf_fde *fde_begin;
+  struct dwarf_fde **fde_array;
+  size_t count;
+  struct object *next;
+};
+
+extern void __register_frame (void * );
+extern void __register_frame_table (void *);
+extern void __deregister_frame (void *);
+
+/* Called either from crtbegin.o or a static constructor to register the
+   unwind info for an object or translation unit, respectively.  */
+
+extern void __register_frame_info (void *, struct object *);
+
+/* Similar, but BEGIN is actually a pointer to a table of unwind entries
+   for different translation units.  Called from the file generated by
+   collect2.  */
+extern void __register_frame_info_table (void *, struct object *);
+
+/* Called from crtend.o to deregister the unwind info for an object.  */
+
+extern void *__deregister_frame_info (void *);
+
+/* Called from __throw to find the registers to restore for a given
+   PC_TARGET.  The caller should allocate a local variable of `struct
+   frame_state' (declared in frame.h) and pass its address to STATE_IN.
+   Returns NULL on failure, otherwise returns STATE_IN.  */
+
+extern struct frame_state *__frame_state_for (void *, struct frame_state *);