gdb/exec.h

   1 /* Work with executable files, for GDB, the GNU debugger.
   2
   3    Copyright (C) 2003-2014 Free Software Foundation, Inc.
   4
   5    This file is part of GDB.
   6
   7    This program 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 of the License, or
  10    (at your option) any later version.
  11
  12    This program 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.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 #ifndef EXEC_H
  21 #define EXEC_H
  22
  23 #include "target.h"
  24 #include "progspace.h"
  25 #include "memrange.h"
  26
  27 struct target_section;
  28 struct target_ops;
  29 struct bfd;
  30 struct objfile;
  31
  32 extern struct target_ops exec_ops;
  33
  34 #define exec_bfd current_program_space->ebfd
  35 #define exec_bfd_mtime current_program_space->ebfd_mtime
  36 #define exec_filename current_program_space->pspace_exec_filename
  37
  38 /* Builds a section table, given args BFD, SECTABLE_PTR, SECEND_PTR.
  39    Returns 0 if OK, 1 on error.  */
  40
  41 extern int build_section_table (struct bfd *, struct target_section **,
  42                                 struct target_section **);
  43
  44 /* Resize the section table held by TABLE, by NUM_ADDED.  Returns the
  45    old size.  */
  46
  47 extern int resize_section_table (struct target_section_table *, int);
  48
  49 /* Appends all read-only memory ranges found in the target section
  50    table defined by SECTIONS and SECTIONS_END, starting at (and
  51    intersected with) MEMADDR for LEN bytes.  Returns the augmented
  52    VEC.  */
  53
  54 extern VEC(mem_range_s) *
  55   section_table_available_memory (VEC(mem_range_s) *ranges,
  56                                   CORE_ADDR memaddr, ULONGEST len,
  57                                   struct target_section *sections,
  58                                   struct target_section *sections_end);
  59
  60 /* Read or write from mappable sections of BFD executable files.
  61
  62    Request to transfer up to LEN 8-bit bytes of the target sections
  63    defined by SECTIONS and SECTIONS_END.  The OFFSET specifies the
  64    starting address.
  65    If SECTION_NAME is not NULL, only access sections with that same
  66    name.
  67
  68    Return the number of bytes actually transfered, or zero when no
  69    data is available for the requested range.
  70
  71    This function is intended to be used from target_xfer_partial
  72    implementations.  See target_read and target_write for more
  73    information.
  74
  75    One, and only one, of readbuf or writebuf must be non-NULL.  */
  76
  77 extern int section_table_xfer_memory_partial (gdb_byte *, const gdb_byte *,
  78                                               ULONGEST, LONGEST,
  79                                               struct target_section *,
  80                                               struct target_section *,
  81                                               const char *);
  82
  83 /* Set the loaded address of a section.  */
  84 extern void exec_set_section_address (const char *, int, CORE_ADDR);
  85
  86 /* Remove all target sections owned by OWNER.  */
  87
  88 extern void remove_target_sections (void *owner);
  89
  90 /* Add the sections array defined by [SECTIONS..SECTIONS_END[ to the
  91    current set of target sections.  */
  92
  93 extern void add_target_sections (void *owner,
  94                                  struct target_section *sections,
  95                                  struct target_section *sections_end);
  96
  97 /* Add the sections of OBJFILE to the current set of target sections.
  98  * OBJFILE owns the new target sections.  */
  99
 100 extern void add_target_sections_of_objfile (struct objfile *objfile);
 101
 102 /* Prints info about all sections defined in the TABLE.  ABFD is
 103    special cased --- it's filename is omitted; if it is the executable
 104    file, its entry point is printed.  */
 105
 106 extern void print_section_info (struct target_section_table *table,
 107                                 bfd *abfd);
 108
 109 extern void exec_close (void);
 110
 111 #endif