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[/] [open8_urisc/] [trunk/] [gnu/] [binutils/] [gas/] [dw2gencfi.h] - Blame information for rev 299

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1 147 khays
/* dw2gencfi.h - Support for generating Dwarf2 CFI information.
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   Copyright 2003, 2004, 2005, 2007, 2009 Free Software Foundation, Inc.
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   Contributed by Michal Ludvig <mludvig@suse.cz>
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   This file is part of GAS, the GNU Assembler.
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   GAS is free software; you can redistribute it and/or modify
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   it under the terms of the GNU General Public License as published by
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   the Free Software Foundation; either version 3, or (at your option)
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   any later version.
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   GAS is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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   GNU General Public License for more details.
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   You should have received a copy of the GNU General Public License
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   along with GAS; see the file COPYING.  If not, write to the Free
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   Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
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   02110-1301, USA.  */
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#ifndef DW2GENCFI_H
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#define DW2GENCFI_H
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#include "dwarf2.h"
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struct symbol;
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extern const pseudo_typeS cfi_pseudo_table[];
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/* cfi_finish() is called at the end of file. It will complain if
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   the last CFI wasn't properly closed by .cfi_endproc.  */
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extern void cfi_finish (void);
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/* Entry points for backends to add unwind information.  */
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extern void cfi_new_fde (struct symbol *);
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extern void cfi_end_fde (struct symbol *);
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extern void cfi_set_return_column (unsigned);
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extern void cfi_add_advance_loc (struct symbol *);
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extern void cfi_add_CFA_offset (unsigned, offsetT);
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extern void cfi_add_CFA_def_cfa (unsigned, offsetT);
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extern void cfi_add_CFA_register (unsigned, unsigned);
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extern void cfi_add_CFA_def_cfa_register (unsigned);
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extern void cfi_add_CFA_def_cfa_offset (offsetT);
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extern void cfi_add_CFA_restore (unsigned);
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extern void cfi_add_CFA_undefined (unsigned);
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extern void cfi_add_CFA_same_value (unsigned);
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extern void cfi_add_CFA_remember_state (void);
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extern void cfi_add_CFA_restore_state (void);
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/* Structures for md_cfi_end.  */
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#if defined (TE_PE) || defined (TE_PEP)
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#define SUPPORT_FRAME_LINKONCE 1
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#else
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#define SUPPORT_FRAME_LINKONCE 0
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#endif
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struct cfi_insn_data
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{
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  struct cfi_insn_data *next;
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#if SUPPORT_FRAME_LINKONCE
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  segT cur_seg;
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#endif
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  int insn;
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  union
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  {
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    struct
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    {
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      unsigned reg;
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      offsetT offset;
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    } ri;
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    struct
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    {
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      unsigned reg1;
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      unsigned reg2;
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    } rr;
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    unsigned r;
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    offsetT i;
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    struct
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    {
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      symbolS *lab1;
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      symbolS *lab2;
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    } ll;
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    struct cfi_escape_data *esc;
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    struct
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    {
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      unsigned reg, encoding;
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      expressionS exp;
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    } ea;
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  } u;
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};
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struct fde_entry
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{
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  struct fde_entry *next;
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#if SUPPORT_FRAME_LINKONCE
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  segT cur_seg;
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#endif
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  symbolS *start_address;
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  symbolS *end_address;
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  struct cfi_insn_data *data;
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  struct cfi_insn_data **last;
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  unsigned char per_encoding;
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  unsigned char lsda_encoding;
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  expressionS personality;
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  expressionS lsda;
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  unsigned int return_column;
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  unsigned int signal_frame;
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#if SUPPORT_FRAME_LINKONCE
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  int handled;
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#endif
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};
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/* The list of all FDEs that have been collected.  */
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extern struct fde_entry *all_fde_data;
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/* Fake CFI type; outside the byte range of any real CFI insn.  */
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#define CFI_adjust_cfa_offset   0x100
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#define CFI_return_column       0x101
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#define CFI_rel_offset          0x102
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#define CFI_escape              0x103
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#define CFI_signal_frame        0x104
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#define CFI_val_encoded_addr    0x105
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#endif /* DW2GENCFI_H */

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