/* dw2gencfi.h - Support for generating Dwarf2 CFI information.
- Copyright 2003 Free Software Foundation, Inc.
+ Copyright (C) 2003-2014 Free Software Foundation, Inc.
Contributed by Michal Ludvig <mludvig@suse.cz>
This file is part of GAS, the GNU Assembler.
GAS 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)
+ the Free Software Foundation; either version 3, or (at your option)
any later version.
GAS is distributed in the hope that it will be useful,
You should have received a copy of the GNU General Public License
along with GAS; 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 DW2GENCFI_H
#define DW2GENCFI_H
-#include "elf/dwarf2.h"
+#include "dwarf2.h"
struct symbol;
extern void cfi_end_fde (struct symbol *);
extern void cfi_set_return_column (unsigned);
extern void cfi_add_advance_loc (struct symbol *);
+
extern void cfi_add_CFA_offset (unsigned, offsetT);
extern void cfi_add_CFA_def_cfa (unsigned, offsetT);
extern void cfi_add_CFA_register (unsigned, unsigned);
extern void cfi_add_CFA_def_cfa_register (unsigned);
extern void cfi_add_CFA_def_cfa_offset (offsetT);
+extern void cfi_add_CFA_restore (unsigned);
+extern void cfi_add_CFA_undefined (unsigned);
+extern void cfi_add_CFA_same_value (unsigned);
+extern void cfi_add_CFA_remember_state (void);
+extern void cfi_add_CFA_restore_state (void);
+
+/* Structures for md_cfi_end. */
+
+#if defined (TE_PE) || defined (TE_PEP)
+#define SUPPORT_FRAME_LINKONCE 1
+#else
+#define SUPPORT_FRAME_LINKONCE 0
+#endif
+
+struct cfi_insn_data
+{
+ struct cfi_insn_data *next;
+#if SUPPORT_FRAME_LINKONCE
+ segT cur_seg;
+#endif
+ int insn;
+ union
+ {
+ struct
+ {
+ unsigned reg;
+ offsetT offset;
+ } ri;
+
+ struct
+ {
+ unsigned reg1;
+ unsigned reg2;
+ } rr;
+
+ unsigned r;
+ offsetT i;
+
+ struct
+ {
+ symbolS *lab1;
+ symbolS *lab2;
+ } ll;
+
+ struct cfi_escape_data *esc;
+
+ struct
+ {
+ unsigned reg, encoding;
+ expressionS exp;
+ } ea;
+ } u;
+};
+
+struct fde_entry
+{
+ struct fde_entry *next;
+#if SUPPORT_FRAME_LINKONCE
+ segT cur_seg;
+#endif
+ symbolS *start_address;
+ symbolS *end_address;
+ struct cfi_insn_data *data;
+ struct cfi_insn_data **last;
+ unsigned char per_encoding;
+ unsigned char lsda_encoding;
+ expressionS personality;
+ expressionS lsda;
+ unsigned int return_column;
+ unsigned int signal_frame;
+#if SUPPORT_FRAME_LINKONCE
+ int handled;
+#endif
+};
+
+/* The list of all FDEs that have been collected. */
+extern struct fde_entry *all_fde_data;
+
+/* Fake CFI type; outside the byte range of any real CFI insn. */
+#define CFI_adjust_cfa_offset 0x100
+#define CFI_return_column 0x101
+#define CFI_rel_offset 0x102
+#define CFI_escape 0x103
+#define CFI_signal_frame 0x104
+#define CFI_val_encoded_addr 0x105
#endif /* DW2GENCFI_H */