coregrind/m_debuginfo/priv_readelf.h

   1
   2 /*--------------------------------------------------------------------*/
   3 /*--- Reading of syms & debug info from ELF .so/executable files.  ---*/
   4 /*---                                               priv_readelf.h ---*/
   5 /*--------------------------------------------------------------------*/
   6
   7 /*
   8    This file is part of Valgrind, a dynamic binary instrumentation
   9    framework.
  10
  11    Copyright (C) 2000-2017 Julian Seward
  12       jseward@acm.org
  13
  14    This program is free software; you can redistribute it and/or
  15    modify it under the terms of the GNU General Public License as
  16    published by the Free Software Foundation; either version 2 of the
  17    License, or (at your option) any later version.
  18
  19    This program is distributed in the hope that it will be useful, but
  20    WITHOUT ANY WARRANTY; without even the implied warranty of
  21    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  22    General Public License for more details.
  23
  24    You should have received a copy of the GNU General Public License
  25    along with this program; if not, see <http://www.gnu.org/licenses/>.
  26
  27    The GNU General Public License is contained in the file COPYING.
  28 */
  29
  30 #ifndef __PRIV_READELF_H
  31 #define __PRIV_READELF_H
  32
  33 #include "pub_core_basics.h"     // SizeT
  34 #include "pub_core_debuginfo.h"  // DebugInfo
  35
  36 /*
  37    Stabs reader greatly improved by Nick Nethercote, Apr 02.
  38    This module was also extensively hacked on by Jeremy Fitzhardinge
  39    and Tom Hughes.
  40 */
  41
  42 /* Identify an ELF object file by peering at the first few bytes of
  43    it. */
  44 extern Bool ML_(is_elf_object_file)( const void* image, SizeT n_image,
  45                                      Bool rel_ok );
  46
  47 /* Read the ELF binary specified by DI.  For the object/exe specified
  48    by the SegInfo, find ELF sections, then read the symbols, line number
  49    info, file name info, CFA (stack-unwind info) and anything else we
  50    want, into the tables within the supplied SegInfo.
  51
  52    .debug_* sections as well as any separate debuginfo files are not
  53    loaded by this function but instead by ML_(read_elf_debug).  This
  54    separation facilitates lazy loading of debuginfo.  */
  55 extern Bool ML_(read_elf_object) ( DebugInfo* di );
  56
  57 /* Read .debug_* sections from the ELF binary specified by DI.  Also
  58    attempt to load any separate debuginfo files associated with the
  59    object.
  60
  61    ML_(read_elf_object) should be called on DI before calling this
  62    function.  */
  63 extern Bool ML_(read_elf_debug) ( DebugInfo* di );
  64
  65 extern Bool ML_(check_elf_and_get_rw_loads) ( Int fd, const HChar* filename,
  66                                             Int * rw_load_count, Bool from_nsegments );
  67
  68
  69 #endif /* ndef __PRIV_READELF_H */
  70
  71 /*--------------------------------------------------------------------*/
  72 /*--- end                                                          ---*/
  73 /*--------------------------------------------------------------------*/