exp-sgcheck/h_main.h

   1
   2 /*--------------------------------------------------------------------*/
   3 /*--- Ptrcheck: a pointer-use checker.                             ---*/
   4 /*--- Exports for heap access checking.                            ---*/
   5 /*---                                                     h_main.h ---*/
   6 /*--------------------------------------------------------------------*/
   7
   8 /*
   9    This file is part of Ptrcheck, a Valgrind tool for checking pointer
  10    use in programs.
  11
  12    Copyright (C) 2003-2017 Nicholas Nethercote
  13       njn@valgrind.org
  14    Copyright (C) 2008-2017 OpenWorks Ltd
  15       info@open-works.co.uk
  16
  17    This program is free software; you can redistribute it and/or
  18    modify it under the terms of the GNU General Public License as
  19    published by the Free Software Foundation; either version 2 of the
  20    License, or (at your option) any later version.
  21
  22    This program is distributed in the hope that it will be useful, but
  23    WITHOUT ANY WARRANTY; without even the implied warranty of
  24    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  25    General Public License for more details.
  26
  27    You should have received a copy of the GNU General Public License
  28    along with this program; if not, write to the Free Software
  29    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  30    02111-1307, USA.
  31
  32    The GNU General Public License is contained in the file COPYING.
  33 */
  34
  35 #ifndef __H_MAIN_H
  36
  37 #define __H_MAIN_H
  38
  39 // Choose values that couldn't possibly be pointers
  40 #define NONPTR          ((Seg*)0xA1)
  41 #define UNKNOWN         ((Seg*)0xB2)
  42 #define BOTTOM          ((Seg*)0xC3)
  43
  44 static inline Bool is_known_segment(Seg* teg) {
  45    return (UNKNOWN != teg && BOTTOM != teg && NONPTR != teg);
  46    // better?  teg <= BOTTOM
  47 }
  48
  49 void        Seg__cmp(Seg* seg, Addr a, Int* cmp, UWord* n);
  50 Bool        Seg__is_freed(Seg* seg);
  51 ExeContext* Seg__where(Seg* seg);
  52 SizeT       Seg__size(Seg* seg);
  53 Addr        Seg__addr(Seg* seg);
  54
  55 void h_pre_clo_init ( void );
  56 void h_post_clo_init ( void );
  57 void h_fini ( Int exitcode );
  58
  59 void* h_replace_malloc ( ThreadId tid, SizeT n );
  60 void* h_replace___builtin_new ( ThreadId tid, SizeT n );
  61 void* h_replace___builtin_vec_new ( ThreadId tid, SizeT n );
  62 void* h_replace_memalign ( ThreadId tid, SizeT align, SizeT n );
  63 void* h_replace_calloc ( ThreadId tid, SizeT nmemb, SizeT size1 );
  64 void  h_replace_free ( ThreadId tid, void* p );
  65 void  h_replace___builtin_delete ( ThreadId tid, void* p );
  66 void  h_replace___builtin_vec_delete ( ThreadId tid, void* p );
  67 void* h_replace_realloc ( ThreadId tid, void* p_old, SizeT new_size );
  68 SizeT h_replace_malloc_usable_size ( ThreadId tid, void* p );
  69
  70 /* Note that this also does the sg_ instrumentation. */
  71 IRSB* h_instrument ( VgCallbackClosure* closure,
  72                      IRSB* sbIn,
  73                      const VexGuestLayout* layout,
  74                      const VexGuestExtents* vge,
  75                      const VexArchInfo* archinfo_host,
  76                      IRType gWordTy, IRType hWordTy );
  77
  78 #endif
  79
  80 /*--------------------------------------------------------------------*/
  81 /*--- end                                                 h_main.h ---*/
  82 /*--------------------------------------------------------------------*/