1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
|
/*--------------------------------------------------------------------*/
/*--- Malloc replacement. replacemalloc_core.c ---*/
/*--------------------------------------------------------------------*/
/*
This file is part of Valgrind, a dynamic binary instrumentation
framework.
Copyright (C) 2000-2009 Julian Seward
jseward@acm.org
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307, USA.
The GNU General Public License is contained in the file COPYING.
*/
#include "pub_core_basics.h"
#include "pub_core_libcbase.h"
#include "pub_core_libcprint.h"
#include "pub_core_mallocfree.h"
#include "pub_core_options.h"
#include "pub_core_replacemalloc.h"
/*------------------------------------------------------------*/
/*--- Command line options ---*/
/*------------------------------------------------------------*/
/* Nb: the allocator always rounds blocks up to a multiple of
VG_MIN_MALLOC_SZB.
*/
/* DEBUG: print malloc details? default: NO */
Bool VG_(clo_trace_malloc) = False;
/* Minimum alignment in functions that don't specify alignment explicitly.
default: 0, i.e. use VG_MIN_MALLOC_SZB. */
UInt VG_(clo_alignment) = VG_MIN_MALLOC_SZB;
Bool VG_(replacement_malloc_process_cmd_line_option)(Char* arg)
{
if VG_INT_CLO(arg, "--alignment", VG_(clo_alignment)) {
if (VG_(clo_alignment) < VG_MIN_MALLOC_SZB ||
VG_(clo_alignment) > 4096 ||
VG_(log2)( VG_(clo_alignment) ) == -1 /* not a power of 2 */)
{
VG_(message)(Vg_UserMsg,
"Invalid --alignment= setting. "
"Should be a power of 2, >= %d, <= 4096.", VG_MIN_MALLOC_SZB);
VG_(err_bad_option)("--alignment");
}
}
else if VG_BOOL_CLO(arg, "--trace-malloc", VG_(clo_trace_malloc)) {}
else
return False;
return True;
}
void VG_(replacement_malloc_print_usage)(void)
{
VG_(printf)(
" --alignment=<number> set minimum alignment of allocations [%d]\n",
VG_MIN_MALLOC_SZB
);
}
void VG_(replacement_malloc_print_debug_usage)(void)
{
VG_(printf)(
" --trace-malloc=no|yes show client malloc details? [no]\n"
);
}
/*------------------------------------------------------------*/
/*--- Useful functions ---*/
/*------------------------------------------------------------*/
void* VG_(cli_malloc) ( SizeT align, SizeT nbytes )
{
// 'align' should be valid (ie. big enough and a power of two) by now.
// VG_(arena_memalign)() will abort if it's not.
if (VG_MIN_MALLOC_SZB == align)
return VG_(arena_malloc) ( VG_AR_CLIENT, "replacemalloc.cm.1",
nbytes );
else
return VG_(arena_memalign) ( VG_AR_CLIENT, "replacemalloc.cm.2",
align, nbytes );
}
void VG_(cli_free) ( void* p )
{
VG_(arena_free) ( VG_AR_CLIENT, p );
}
Bool VG_(addr_is_in_block)( Addr a, Addr start, SizeT size, SizeT rz_szB )
{
return ( start - rz_szB <= a && a < start + size + rz_szB );
}
/*--------------------------------------------------------------------*/
/*--- end ---*/
/*--------------------------------------------------------------------*/
|
