1 /* dw2gencfi.h - Support for generating Dwarf2 CFI information.
2 Copyright (C) 2003-2014 Free Software Foundation, Inc.
3 Contributed by Michal Ludvig <mludvig@suse.cz>
5 This file is part of GAS, the GNU Assembler.
7 GAS is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3, or (at your option)
12 GAS is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GAS; see the file COPYING. If not, write to the Free
19 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
29 extern const pseudo_typeS cfi_pseudo_table[];
31 /* cfi_finish() is called at the end of file. It will complain if
32 the last CFI wasn't properly closed by .cfi_endproc. */
33 extern void cfi_finish (void);
35 /* Entry points for backends to add unwind information. */
36 extern void cfi_new_fde (struct symbol *);
37 extern void cfi_end_fde (struct symbol *);
38 extern void cfi_set_return_column (unsigned);
39 extern void cfi_add_advance_loc (struct symbol *);
41 extern void cfi_add_CFA_offset (unsigned, offsetT);
42 extern void cfi_add_CFA_def_cfa (unsigned, offsetT);
43 extern void cfi_add_CFA_register (unsigned, unsigned);
44 extern void cfi_add_CFA_def_cfa_register (unsigned);
45 extern void cfi_add_CFA_def_cfa_offset (offsetT);
46 extern void cfi_add_CFA_restore (unsigned);
47 extern void cfi_add_CFA_undefined (unsigned);
48 extern void cfi_add_CFA_same_value (unsigned);
49 extern void cfi_add_CFA_remember_state (void);
50 extern void cfi_add_CFA_restore_state (void);
52 /* Structures for md_cfi_end. */
54 #if defined (TE_PE) || defined (TE_PEP)
55 #define SUPPORT_FRAME_LINKONCE 1
57 #define SUPPORT_FRAME_LINKONCE 0
62 struct cfi_insn_data *next;
63 #if SUPPORT_FRAME_LINKONCE
90 struct cfi_escape_data *esc;
94 unsigned reg, encoding;
102 struct fde_entry *next;
103 #if SUPPORT_FRAME_LINKONCE
106 symbolS *start_address;
107 symbolS *end_address;
108 struct cfi_insn_data *data;
109 struct cfi_insn_data **last;
110 unsigned char per_encoding;
111 unsigned char lsda_encoding;
112 expressionS personality;
114 unsigned int return_column;
115 unsigned int signal_frame;
116 #if SUPPORT_FRAME_LINKONCE
121 /* The list of all FDEs that have been collected. */
122 extern struct fde_entry *all_fde_data;
124 /* Fake CFI type; outside the byte range of any real CFI insn. */
125 #define CFI_adjust_cfa_offset 0x100
126 #define CFI_return_column 0x101
127 #define CFI_rel_offset 0x102
128 #define CFI_escape 0x103
129 #define CFI_signal_frame 0x104
130 #define CFI_val_encoded_addr 0x105
132 #endif /* DW2GENCFI_H */