forked from Imagelibrary/binutils-gdb
a7c7bcafd2
2014-12-23 Cary Coutant <ccoutant@google.com> gas/ * config/obj-elf.c (elf_pseudo_table): Add .lloc and .subprog directives. * dwarf2dbg.h (struct dwarf2_line_info): Add logical field. (dwarf2_directive_subprog): New function. (dwarf2_directive_loc): Add is_lloc parameter. * dwarf2dbg.c: Include "hash.h". (line_base): New variable. (line_range): New variable. (DWARF2_EXPERIMENTAL_LINE_OPCODE_BASE): Rename. (DWARF2_LINE_BASE): Restore to original value. (DWARF2_LINE_RANGE): Likewise. (DWARF5_EXPERIMENTAL_LINE_BASE): New macro. (DWARF5_EXPERIMENTAL_LINE_RANGE): New macro. (SPECIAL_LINE): Use line_base, line_range. (DWARF2_LINE_EXPERIMENTAL_VERSION): New macro. (DWARF2_EXPERIMENTAL_LINE_OPCODE_BASE): New macro. (opcode_base): New static variable. (DWARF2_LINE_BASE, DWARF2_LINE_RANGE): Adjust parameters. (DWARF2_LINE_MAX_OPS_PER_INSN): New macro. (SPECIAL_LINE, SPECIAL_ADDR): Use opcode_base. (struct subprog_entry): New struct. (subprogs, subprogs_in_use, subprogs_allocated): New variables. (struct logicals_entry): New struct. (logicals, logicals_in_use, logicals_allocated, logicals_with_labels): New variables. (struct string_table): New struct. (debug_line_str_table): New variable. (current): Add logical field. (dwarf2_gen_line_info): Fill in symbol and segment for recent logicals. (dwarf2_where): Add logical field. (make_subprog_entry): New function. (make_logical): New function. (dwarf2_directive_subprog): New function. (dwarf2_directive_loc): Add is_lloc parameter; add support for .lloc directive. (out_set_addr_from_logical): New function. (size_inc_line_addr): Fix signed/unsigned warnings. Use opcode_base, line_base, line_range. (emit_inc_line_addr): Likewise. (emit_logicals): New function. (process_entries): Add support for two-level line tables. (add_to_string_table): New function. (out_string_table): New function. (out_dwarf5_file_list): New function. (out_subprog_list): New function. (out_debug_line): Add support for DWARF-5 line tables and for experimental two-level line number tables. (dwarf2_finish): Likewise.
133 lines
5.1 KiB
C
133 lines
5.1 KiB
C
/* dwarf2dbg.h - DWARF2 debug support
|
|
Copyright (C) 1999-2015 Free Software Foundation, Inc.
|
|
|
|
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 3, or (at your option)
|
|
any later version.
|
|
|
|
GAS is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
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, 51 Franklin Street - Fifth Floor, Boston, MA
|
|
02110-1301, USA. */
|
|
|
|
#ifndef AS_DWARF2DBG_H
|
|
#define AS_DWARF2DBG_H
|
|
|
|
#include "as.h"
|
|
|
|
#define DWARF2_FLAG_IS_STMT (1 << 0)
|
|
#define DWARF2_FLAG_BASIC_BLOCK (1 << 1)
|
|
#define DWARF2_FLAG_PROLOGUE_END (1 << 2)
|
|
#define DWARF2_FLAG_EPILOGUE_BEGIN (1 << 3)
|
|
|
|
struct dwarf2_line_info {
|
|
unsigned int filenum;
|
|
unsigned int line;
|
|
unsigned int column;
|
|
unsigned int isa;
|
|
unsigned int flags;
|
|
unsigned int discriminator;
|
|
unsigned int logical;
|
|
};
|
|
|
|
/* Implements the .file FILENO "FILENAME" directive. FILENO can be 0
|
|
to indicate that no file number has been assigned. All real file
|
|
number must be >0. */
|
|
extern char *dwarf2_directive_file (int dummy);
|
|
|
|
/* Experimental DWARF-5 extension:
|
|
Implements the .subprog SUBPNO ["SUBPROG" [FILENO LINENO]] directive.
|
|
FILENO is the file number, LINENO the line number and the
|
|
(optional) COLUMN the column of the source code that the following
|
|
instruction corresponds to. FILENO can be 0 to indicate that the
|
|
filename specified by the textually most recent .file directive
|
|
should be used. */
|
|
extern void dwarf2_directive_subprog (int dummy);
|
|
|
|
/* Implements the .loc FILENO LINENO [COLUMN] directive. FILENO is
|
|
the file number, LINENO the line number and the (optional) COLUMN
|
|
the column of the source code that the following instruction
|
|
corresponds to. FILENO can be 0 to indicate that the filename
|
|
specified by the textually most recent .file directive should be
|
|
used. */
|
|
/* Experimental DWARF-5 extension:
|
|
If IS_LLOC is true, implements the .lloc LOGICAL [FILENO LINENO [COLUMN]]
|
|
directive. FILENO is the file number, LINENO the line number and the
|
|
(optional) COLUMN the column of the source code that the following
|
|
instruction corresponds to. FILENO can be 0 to indicate that the
|
|
filename specified by the textually most recent .file directive
|
|
should be used. */
|
|
extern void dwarf2_directive_loc (int is_lloc);
|
|
|
|
/* Implements the .loc_mark_labels {0,1} directive. */
|
|
extern void dwarf2_directive_loc_mark_labels (int dummy);
|
|
|
|
/* Returns the current source information. If .file directives have
|
|
been encountered, the info for the corresponding source file is
|
|
returned. Otherwise, the info for the assembly source file is
|
|
returned. */
|
|
extern void dwarf2_where (struct dwarf2_line_info *l);
|
|
|
|
/* A hook to allow the target backend to inform the line number state
|
|
machine of isa changes when assembler debug info is enabled. */
|
|
extern void dwarf2_set_isa (unsigned int isa);
|
|
|
|
/* This function generates .debug_line info based on the address and
|
|
source information passed in the arguments. ADDR should be the
|
|
frag-relative offset of the instruction the information is for and
|
|
L is the source information that should be associated with that
|
|
address. */
|
|
extern void dwarf2_gen_line_info (addressT addr, struct dwarf2_line_info *l);
|
|
|
|
/* Must be called for each generated instruction. */
|
|
extern void dwarf2_emit_insn (int);
|
|
|
|
void dwarf2_move_insn (int);
|
|
|
|
/* Reset the state of the line number information to reflect that
|
|
it has been used. */
|
|
extern void dwarf2_consume_line_info (void);
|
|
|
|
/* Should be called for each code label. */
|
|
extern void dwarf2_emit_label (symbolS *);
|
|
|
|
/* True when we've seen a .loc directive recently. Used to avoid
|
|
doing work when there's nothing to do. */
|
|
extern bfd_boolean dwarf2_loc_directive_seen;
|
|
|
|
/* True when we're supposed to set the basic block mark whenever a label
|
|
is seen. Unless the target is doing Something Weird, just call
|
|
dwarf2_emit_label. */
|
|
extern bfd_boolean dwarf2_loc_mark_labels;
|
|
|
|
extern void dwarf2_init (void);
|
|
|
|
extern void dwarf2_finish (void);
|
|
|
|
extern int dwarf2dbg_estimate_size_before_relax (fragS *);
|
|
extern int dwarf2dbg_relax_frag (fragS *);
|
|
extern void dwarf2dbg_convert_frag (fragS *);
|
|
|
|
/* An enumeration which describes the sizes of offsets (to DWARF sections)
|
|
and the mechanism by which the size is indicated. */
|
|
enum dwarf2_format {
|
|
/* 32-bit format: the initial length field is 4 bytes long. */
|
|
dwarf2_format_32bit,
|
|
/* DWARF3 64-bit format: the representation of the initial length
|
|
(of a DWARF section) is 0xffffffff (4 bytes) followed by eight
|
|
bytes indicating the actual length. */
|
|
dwarf2_format_64bit,
|
|
/* SGI extension to DWARF2: The initial length is eight bytes. */
|
|
dwarf2_format_64bit_irix
|
|
};
|
|
|
|
#endif /* AS_DWARF2DBG_H */
|