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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) 2003-2015 Nicholas Nethercote
13       njn@valgrind.org
14    Copyright (C) 2008-2015 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 
is_known_segment(Seg * teg)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 /*--------------------------------------------------------------------*/
83