/* Subroutines needed for unwinding stack frames for exception handling. */
-/* Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002
+/* Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2004
Free Software Foundation, Inc.
Contributed by Jason Merrill <jason@cygnus.com>.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING. If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA. */
+Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301, USA. */
+#ifndef GCC_UNWIND_DW2_FDE_H
+#define GCC_UNWIND_DW2_FDE_H
+
+#ifndef HIDE_EXPORTS
+#pragma GCC visibility push(default)
+#endif
struct fde_vector
{
- void *orig_data;
+ const void *orig_data;
size_t count;
- struct dwarf_fde *array[];
+ const struct dwarf_fde *array[];
};
struct object
void *tbase;
void *dbase;
union {
- struct dwarf_fde *single;
+ const struct dwarf_fde *single;
struct dwarf_fde **array;
struct fde_vector *sort;
} u;
size_t i;
} s;
+#ifdef DWARF2_OBJECT_END_PTR_EXTENSION
+ char *fde_end;
+#endif
+
struct object *next;
};
};
-extern void __register_frame_info_bases (void *, struct object *,
+extern void __register_frame_info_bases (const void *, struct object *,
void *, void *);
-extern void __register_frame_info (void *, struct object *);
+extern void __register_frame_info (const void *, struct object *);
extern void __register_frame (void *);
extern void __register_frame_info_table_bases (void *, struct object *,
void *, void *);
extern void __register_frame_info_table (void *, struct object *);
extern void __register_frame_table (void *);
-extern void *__deregister_frame_info (void *);
-extern void *__deregister_frame_info_bases (void *);
+extern void *__deregister_frame_info (const void *);
+extern void *__deregister_frame_info_bases (const void *);
extern void __deregister_frame (void *);
\f
a) in a linear search, find the shared image (i.e. DLL) containing
the PC
b) using the FDE table for that shared object, locate the FDE using
- binary search (which requires the sorting). */
+ binary search (which requires the sorting). */
/* The first few fields of a CIE. The CIE_id field is 0 for a CIE,
to distinguish it from a valid FDE. FDEs are aligned to an addressing
/* Locate the CIE for a given FDE. */
-static inline struct dwarf_cie *
-get_cie (struct dwarf_fde *f)
+static inline const struct dwarf_cie *
+get_cie (const struct dwarf_fde *f)
{
return (void *)&f->CIE_delta - f->CIE_delta;
}
-static inline fde *
-next_fde (fde *f)
+static inline const fde *
+next_fde (const fde *f)
{
- return (fde *) ((char *) f + f->length + sizeof (f->length));
+ return (const fde *) ((char *) f + f->length + sizeof (f->length));
}
-extern fde * _Unwind_Find_FDE (void *, struct dwarf_eh_bases *);
+extern const fde * _Unwind_Find_FDE (void *, struct dwarf_eh_bases *);
+
+static inline int
+last_fde (struct object *obj __attribute__ ((__unused__)), const fde *f)
+{
+#ifdef DWARF2_OBJECT_END_PTR_EXTENSION
+ return (char *)f == obj->fde_end || f->length == 0;
+#else
+ return f->length == 0;
+#endif
+}
+
+#ifndef HIDE_EXPORTS
+#pragma GCC visibility pop
+#endif
+
+#endif /* unwind-dw2-fde.h */