/* Frame unwinder for frames with DWARF Call Frame Information.
- Copyright (C) 2003, 2004, 2005, 2007 Free Software Foundation, Inc.
+ Copyright (C) 2003-2014 Free Software Foundation, Inc.
Contributed by Mark Kettenis.
This program 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 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef DWARF2_FRAME_H
#define DWARF2_FRAME_H 1
struct gdbarch;
struct objfile;
struct frame_info;
+struct dwarf2_per_cu_data;
+struct agent_expr;
+struct axs_value;
/* Register rule. */
/* These aren't defined by the DWARF2 CFI specification, but are
used internally by GDB. */
+ DWARF2_FRAME_REG_FN, /* Call a registered function. */
DWARF2_FRAME_REG_RA, /* Return Address. */
DWARF2_FRAME_REG_RA_OFFSET, /* Return Address with offset. */
DWARF2_FRAME_REG_CFA, /* Call Frame Address. */
union {
LONGEST offset;
ULONGEST reg;
- unsigned char *exp;
+ const gdb_byte *exp;
+ struct value *(*fn) (struct frame_info *this_frame, void **this_cache,
+ int regnum);
} loc;
ULONGEST exp_len;
enum dwarf2_frame_reg_rule how;
int (*adjust_regnum) (struct gdbarch *,
int, int));
-/* Return the frame unwind methods for the function that contains PC,
- or NULL if it can't be handled by DWARF CFI frame unwinder. */
+/* Append the DWARF-2 frame unwinders to GDBARCH's list. */
-extern const struct frame_unwind *
- dwarf2_frame_sniffer (struct frame_info *next_frame);
+void dwarf2_append_unwinders (struct gdbarch *gdbarch);
/* Return the frame base methods for the function that contains PC, or
NULL if it can't be handled by the DWARF CFI frame unwinder. */
extern const struct frame_base *
- dwarf2_frame_base_sniffer (struct frame_info *next_frame);
+ dwarf2_frame_base_sniffer (struct frame_info *this_frame);
-/* Register the DWARF CFI for OBJFILE. */
+/* Compute the DWARF CFA for a frame. */
-void dwarf2_frame_build_info (struct objfile *objfile);
+CORE_ADDR dwarf2_frame_cfa (struct frame_info *this_frame);
+
+/* Update the agent expression EXPR with code to compute the CFA for a
+ frame at PC. GDBARCH is the architecture of the function at PC.
+ This function may call dwarf2_compile_expr_to_ax; DATA is passed
+ through to that function if needed. */
+
+extern void dwarf2_compile_cfa_to_ax (struct agent_expr *expr,
+ struct axs_value *loc,
+ struct gdbarch *gdbarch,
+ CORE_ADDR pc,
+ struct dwarf2_per_cu_data *data);
#endif /* dwarf2-frame.h */