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/* dwarf2dbg.h - DWARF2 debug support
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   Copyright (C) 1999-2015 Free Software Foundation, Inc.
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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 AS_DWARF2DBG_H
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#define AS_DWARF2DBG_H
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#include "as.h"
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#define DWARF2_FLAG_IS_STMT		(1 << 0)
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#define DWARF2_FLAG_BASIC_BLOCK		(1 << 1)
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#define DWARF2_FLAG_PROLOGUE_END	(1 << 2)
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#define DWARF2_FLAG_EPILOGUE_BEGIN	(1 << 3)
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struct dwarf2_line_info {
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  unsigned int filenum;
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  unsigned int line;
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  unsigned int column;
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  unsigned int isa;
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  unsigned int flags;
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  unsigned int discriminator;
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};
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/* Implements the .file FILENO "FILENAME" directive.  FILENO can be 0
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   to indicate that no file number has been assigned.  All real file
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   number must be >0.  */
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extern char *dwarf2_directive_file (int dummy);
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/* Implements the .loc FILENO LINENO [COLUMN] directive.  FILENO is
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   the file number, LINENO the line number and the (optional) COLUMN
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   the column of the source code that the following instruction
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   corresponds to.  FILENO can be 0 to indicate that the filename
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   specified by the textually most recent .file directive should be
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   used.  */
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extern void dwarf2_directive_loc (int dummy);
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/* Implements the .loc_mark_labels {0,1} directive.  */
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extern void dwarf2_directive_loc_mark_labels (int dummy);
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/* Returns the current source information.  If .file directives have
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   been encountered, the info for the corresponding source file is
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   returned.  Otherwise, the info for the assembly source file is
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   returned.  */
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extern void dwarf2_where (struct dwarf2_line_info *l);
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/* A hook to allow the target backend to inform the line number state
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   machine of isa changes when assembler debug info is enabled.  */
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extern void dwarf2_set_isa (unsigned int isa);
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/* This function generates .debug_line info based on the address and
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   source information passed in the arguments.  ADDR should be the
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   frag-relative offset of the instruction the information is for and
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   L is the source information that should be associated with that
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   address.  */
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extern void dwarf2_gen_line_info (addressT addr, struct dwarf2_line_info *l);
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/* Must be called for each generated instruction.  */
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extern void dwarf2_emit_insn (int);
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void dwarf2_move_insn (int);
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/* Reset the state of the line number information to reflect that
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   it has been used.  */
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extern void dwarf2_consume_line_info (void);
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/* Should be called for each code label.  */
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extern void dwarf2_emit_label (symbolS *);
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/* True when we've seen a .loc directive recently.  Used to avoid
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   doing work when there's nothing to do.  */
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extern bfd_boolean dwarf2_loc_directive_seen;
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/* True when we're supposed to set the basic block mark whenever a label
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   is seen.  Unless the target is doing Something Weird, just call
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   dwarf2_emit_label.  */
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extern bfd_boolean dwarf2_loc_mark_labels;
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extern void dwarf2_init (void);
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extern void dwarf2_finish (void);
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extern int dwarf2dbg_estimate_size_before_relax (fragS *);
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extern int dwarf2dbg_relax_frag (fragS *);
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extern void dwarf2dbg_convert_frag (fragS *);
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/* An enumeration which describes the sizes of offsets (to DWARF sections)
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   and the mechanism by which the size is indicated.  */
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enum dwarf2_format {
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  /* 32-bit format: the initial length field is 4 bytes long.  */
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  dwarf2_format_32bit,
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  /* DWARF3 64-bit format: the representation of the initial length
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     (of a DWARF section) is 0xffffffff (4 bytes) followed by eight
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     bytes indicating the actual length.  */
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  dwarf2_format_64bit,
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  /* SGI extension to DWARF2: The initial length is eight bytes.  */
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  dwarf2_format_64bit_irix
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};
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#endif /* AS_DWARF2DBG_H */