gdb/solib-svr4.h - gdb

Data types defined

Macros defined

Source code

  1. /* Handle shared libraries for GDB, the GNU Debugger.

  3.    Copyright (C) 2000-2015 Free Software Foundation, Inc.

  5.    This file is part of GDB.

  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.

  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.

  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/>.  */

  20. #ifndef SOLIB_SVR4_H
  21. ‌#define SOLIB_SVR4_H

  23. struct objfile;
  24. struct target_so_ops;

  26. extern struct target_so_ops svr4_so_ops;

  28. /* Critical offsets and sizes which describe struct r_debug and
  29.    struct link_map on SVR4-like targets.  All offsets and sizes are
  30.    in bytes unless otherwise specified.  */

  32. ‌struct link_map_offsets
  33.   {
  34.     /* Offset and size of r_debug.r_version.  */
  35.     int r_version_offset, r_version_size;

  37.     /* Offset of r_debug.r_map.  */
  38.     int r_map_offset;

  40.     /* Offset of r_debug.r_brk.  */
  41.     int r_brk_offset;

  43.     /* Offset of r_debug.r_ldsomap.  */
  44.     int r_ldsomap_offset;

  46.     /* Size of struct link_map (or equivalent), or at least enough of it
  47.        to be able to obtain the fields below.  */
  48.     int link_map_size;

  50.     /* Offset to l_addr field in struct link_map.  */
  51.     int l_addr_offset;

  53.     /* Offset to l_ld field in struct link_map.  */
  54.     int l_ld_offset;

  56.     /* Offset to l_next field in struct link_map.  */
  57.     int l_next_offset;

  59.     /* Offset to l_prev field in struct link_map.  */
  60.     int l_prev_offset;

  62.     /* Offset to l_name field in struct link_map.  */
  63.     int l_name_offset;
  64.   };

  66. /* set_solib_svr4_fetch_link_map_offsets() is intended to be called by
  67.    a <arch>_gdbarch_init() function.  It is used to establish an
  68.    architecture specific link_map_offsets fetcher for the architecture
  69.    being defined.  */

  71. extern void set_solib_svr4_fetch_link_map_offsets
  72.   (struct gdbarch *gdbarch, struct link_map_offsets *(*func) (void));

  74. /* This function is called by thread_db.c.  Return the address of the
  75.    link map for the given objfile.  */
  76. extern CORE_ADDR svr4_fetch_objfile_link_map (struct objfile *objfile);

  78. /* Fetch (and possibly build) an appropriate `struct link_map_offsets'
  79.    for ILP32 and LP64 SVR4 systems.  */
  80. extern struct link_map_offsets *svr4_ilp32_fetch_link_map_offsets (void);
  81. extern struct link_map_offsets *svr4_lp64_fetch_link_map_offsets (void);

  83. /* Return 1 if PC lies in the dynamic symbol resolution code of the
  84.    SVR4 run time loader.  */
  85. int svr4_in_dynsym_resolve_code (CORE_ADDR pc);

  87. #endif /* solib-svr4.h */