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
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
|
/*--------------------------------------------------------------------*/
/*--- Stuff relating to tool data structures. ---*/
/*--- m_tooliface.c ---*/
/*--------------------------------------------------------------------*/
/*
This file is part of Valgrind, a dynamic binary instrumentation
framework.
Copyright (C) 2000-2017 Nicholas Nethercote
njn@valgrind.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, see <http://www.gnu.org/licenses/>.
The GNU General Public License is contained in the file COPYING.
*/
#include "pub_core_basics.h"
#include "pub_core_tooliface.h"
#include "pub_core_transtab.h" /* VG_(ok_to_discard_translations) */
// The core/tool dictionary of functions (initially zeroed, as we want it)
VgToolInterface VG_(tdict);
/*--------------------------------------------------------------------*/
/* Setting basic functions */
void VG_(basic_tool_funcs)(
void(*post_clo_init)(void),
IRSB*(*instrument)(VgCallbackClosure*, IRSB*,
const VexGuestLayout*, const VexGuestExtents*,
const VexArchInfo*, IRType, IRType),
void(*fini)(Int)
)
{
VG_(tdict).tool_post_clo_init = post_clo_init;
VG_(tdict).tool_instrument = instrument;
VG_(tdict).tool_fini = fini;
}
/*--------------------------------------------------------------------*/
/* Setting details */
/* Init with default values. */
VgDetails VG_(details) = {
.name = NULL,
.version = NULL,
.description = NULL,
.copyright_author = NULL,
.bug_reports_to = NULL,
.avg_translation_sizeB = VG_DEFAULT_TRANS_SIZEB,
};
/* Use macro because they're so repetitive */
#define DETAILS(type, detail) \
extern void VG_(details_##detail)(type detail) \
{ \
VG_(details).detail = detail; \
}
DETAILS(const HChar*, name)
DETAILS(const HChar*, version)
DETAILS(const HChar*, description)
DETAILS(const HChar*, copyright_author)
DETAILS(const HChar*, bug_reports_to)
DETAILS(UInt, avg_translation_sizeB)
/*--------------------------------------------------------------------*/
/* Setting needs */
VgNeeds VG_(needs) = {
.core_errors = False,
.tool_errors = False,
.libc_freeres = False,
.cxx_freeres = False,
.superblock_discards = False,
.command_line_options = False,
.client_requests = False,
.syscall_wrapper = False,
.sanity_checks = False,
.print_stats = False,
.info_location = False,
.var_info = False,
.malloc_replacement = False,
.xml_output = False,
.final_IR_tidy_pass = False
};
/* static */
Bool VG_(finish_needs_init)(const HChar** failmsg)
{
Bool any_new_mem_stack_N, any_new_mem_stack_N_w_ECU;
Bool any_new_mem_stack_w_conflicting_otags;
Bool any_die_mem_stack_N;
#define CHECK_NOT(var, value) \
if ((var)==(value)) { \
*failmsg = "Tool error: '" #var "' not initialised\n"; \
return False; \
}
/* Ones that must be set */
CHECK_NOT(VG_(details).name, NULL);
/* Nb: .version can be NULL */
CHECK_NOT(VG_(details).description, NULL);
CHECK_NOT(VG_(details).copyright_author, NULL);
CHECK_NOT(VG_(details).bug_reports_to, NULL);
/* Check that new_mem_stack is defined if any new_mem_stack_N
are. */
any_new_mem_stack_N
= VG_(tdict).track_new_mem_stack_4 ||
VG_(tdict).track_new_mem_stack_8 ||
VG_(tdict).track_new_mem_stack_12 ||
VG_(tdict).track_new_mem_stack_16 ||
VG_(tdict).track_new_mem_stack_32 ||
VG_(tdict).track_new_mem_stack_112 ||
VG_(tdict).track_new_mem_stack_128 ||
VG_(tdict).track_new_mem_stack_144 ||
VG_(tdict).track_new_mem_stack_160;
if (any_new_mem_stack_N && ! VG_(tdict).track_new_mem_stack) {
*failmsg = "Tool error: one of the specialised 'new_mem_stack_N'\n"
" events tracked, but not the generic 'new_mem_stack' one.\n"
" 'new_mem_stack' should be defined\n";
return False;
}
/* Check that new_mem_stack_w_ECU is defined if any
new_mem_stack_N_w_ECU are. */
any_new_mem_stack_N_w_ECU
= VG_(tdict).track_new_mem_stack_4_w_ECU ||
VG_(tdict).track_new_mem_stack_8_w_ECU ||
VG_(tdict).track_new_mem_stack_12_w_ECU ||
VG_(tdict).track_new_mem_stack_16_w_ECU ||
VG_(tdict).track_new_mem_stack_32_w_ECU ||
VG_(tdict).track_new_mem_stack_112_w_ECU ||
VG_(tdict).track_new_mem_stack_128_w_ECU ||
VG_(tdict).track_new_mem_stack_144_w_ECU ||
VG_(tdict).track_new_mem_stack_160_w_ECU;
if (any_new_mem_stack_N_w_ECU && ! VG_(tdict).track_new_mem_stack_w_ECU) {
*failmsg = "Tool error: one of the specialised 'new_mem_stack_N_w_ECU'\n"
" events tracked, but not the generic 'new_mem_stack_w_ECU' one.\n"
" 'new_mem_stack_w_ECU' should be defined\n";
return False;
}
/* Check that in no cases are both with- and without-otag versions of the
same new_mem_stack_ function defined. */
any_new_mem_stack_w_conflicting_otags
= (VG_(tdict).track_new_mem_stack_4 && VG_(tdict).track_new_mem_stack_4_w_ECU) ||
(VG_(tdict).track_new_mem_stack_8 && VG_(tdict).track_new_mem_stack_8_w_ECU) ||
(VG_(tdict).track_new_mem_stack_12 && VG_(tdict).track_new_mem_stack_12_w_ECU) ||
(VG_(tdict).track_new_mem_stack_16 && VG_(tdict).track_new_mem_stack_16_w_ECU) ||
(VG_(tdict).track_new_mem_stack_32 && VG_(tdict).track_new_mem_stack_32_w_ECU) ||
(VG_(tdict).track_new_mem_stack_112 && VG_(tdict).track_new_mem_stack_112_w_ECU) ||
(VG_(tdict).track_new_mem_stack_128 && VG_(tdict).track_new_mem_stack_128_w_ECU) ||
(VG_(tdict).track_new_mem_stack_144 && VG_(tdict).track_new_mem_stack_144_w_ECU) ||
(VG_(tdict).track_new_mem_stack_160 && VG_(tdict).track_new_mem_stack_160_w_ECU) ||
(VG_(tdict).track_new_mem_stack && VG_(tdict).track_new_mem_stack_w_ECU);
if (any_new_mem_stack_w_conflicting_otags) {
*failmsg = "Tool error: tool supplies both a 'new_mem_stack_N' and a\n"
" 'new_mem_stack_N_w_ECU' function for some N (or none),\n"
" but you can only have one or the other (not both)\n";
return False;
}
VG_(tdict).any_new_mem_stack
= VG_(tdict).track_new_mem_stack || VG_(tdict).track_new_mem_stack_w_ECU
|| any_new_mem_stack_N || any_new_mem_stack_N_w_ECU;
/* Check that die_mem_stack is defined if any die_mem_stack_N
are. */
any_die_mem_stack_N
= VG_(tdict).track_die_mem_stack_4 ||
VG_(tdict).track_die_mem_stack_8 ||
VG_(tdict).track_die_mem_stack_12 ||
VG_(tdict).track_die_mem_stack_16 ||
VG_(tdict).track_die_mem_stack_32 ||
VG_(tdict).track_die_mem_stack_112 ||
VG_(tdict).track_die_mem_stack_128 ||
VG_(tdict).track_die_mem_stack_144 ||
VG_(tdict).track_die_mem_stack_160;
if (any_die_mem_stack_N && ! VG_(tdict).track_die_mem_stack) {
*failmsg = "Tool error: one of the specialised 'die_mem_stack_N'\n"
" events tracked, but not the generic 'die_mem_stack' one.\n"
" 'die_mem_stack' should be defined\n";
return False;
}
VG_(tdict).any_die_mem_stack
= VG_(tdict).track_die_mem_stack || any_die_mem_stack_N;
return True;
#undef CHECK_NOT
}
/* Use macro because they're so repetitive */
#define NEEDS(need) \
extern void VG_(needs_##need)(void) \
{ \
VG_(needs).need = True; \
}
// These ones don't require any tool-supplied functions
NEEDS(libc_freeres)
NEEDS(cxx_freeres)
NEEDS(var_info)
void VG_(needs_core_errors)( Bool need )
{
VG_(needs).core_errors = need;
}
void VG_(needs_superblock_discards)(
void (*discard)(Addr, VexGuestExtents)
)
{
VG_(needs).superblock_discards = True;
VG_(tdict).tool_discard_superblock_info = discard;
}
void VG_(needs_tool_errors)(
Bool (*eq) (VgRes, const Error*, const Error*),
void (*before_pp) (const Error*),
void (*pp) (const Error*),
Bool show_TIDs,
UInt (*update) (const Error*),
Bool (*recog) (const HChar*, Supp*),
Bool (*read_extra) (Int, HChar**, SizeT*, Int*, Supp*),
Bool (*matches) (const Error*, const Supp*),
const HChar* (*name) (const Error*),
SizeT (*get_xtra_si)(const Error*,/*OUT*/HChar*,Int),
SizeT (*print_xtra_su)(const Supp*,/*OUT*/HChar*,Int),
void (*update_xtra_su)(const Error*, const Supp*)
)
{
VG_(needs).tool_errors = True;
VG_(tdict).tool_eq_Error = eq;
VG_(tdict).tool_before_pp_Error = before_pp;
VG_(tdict).tool_pp_Error = pp;
VG_(tdict).tool_show_ThreadIDs_for_errors = show_TIDs;
VG_(tdict).tool_update_extra = update;
VG_(tdict).tool_recognised_suppression = recog;
VG_(tdict).tool_read_extra_suppression_info = read_extra;
VG_(tdict).tool_error_matches_suppression = matches;
VG_(tdict).tool_get_error_name = name;
VG_(tdict).tool_get_extra_suppression_info = get_xtra_si;
VG_(tdict).tool_print_extra_suppression_use = print_xtra_su;
VG_(tdict).tool_update_extra_suppression_use = update_xtra_su;
}
void VG_(needs_command_line_options)(
Bool (*process)(const HChar*),
void (*usage)(void),
void (*debug_usage)(void)
)
{
VG_(needs).command_line_options = True;
VG_(tdict).tool_process_cmd_line_option = process;
VG_(tdict).tool_print_usage = usage;
VG_(tdict).tool_print_debug_usage = debug_usage;
}
/* The tool's function for handling client requests. */
static Bool (*tool_handle_client_request_func)(ThreadId, UWord *, UWord *);
static Bool wrap_tool_handle_client_request(ThreadId tid, UWord *arg1,
UWord *arg2)
{
Bool ret;
VG_(ok_to_discard_translations) = True;
ret = tool_handle_client_request_func(tid, arg1, arg2);
VG_(ok_to_discard_translations) = False;
return ret;
}
void VG_(needs_client_requests)(
Bool (*handle)(ThreadId, UWord*, UWord*)
)
{
VG_(needs).client_requests = True;
tool_handle_client_request_func = handle; /* Stash away */
/* Register the wrapper function */
VG_(tdict).tool_handle_client_request = wrap_tool_handle_client_request;
}
void VG_(needs_syscall_wrapper)(
void(*pre) (ThreadId, UInt, UWord*, UInt),
void(*post)(ThreadId, UInt, UWord*, UInt, SysRes res)
)
{
VG_(needs).syscall_wrapper = True;
VG_(tdict).tool_pre_syscall = pre;
VG_(tdict).tool_post_syscall = post;
}
void VG_(needs_sanity_checks)(
Bool(*cheap)(void),
Bool(*expen)(void)
)
{
VG_(needs).sanity_checks = True;
VG_(tdict).tool_cheap_sanity_check = cheap;
VG_(tdict).tool_expensive_sanity_check = expen;
}
void VG_(needs_print_stats) (
void (*print_stats)(void)
)
{
VG_(needs).print_stats = True;
VG_(tdict).tool_print_stats = print_stats;
}
void VG_(needs_info_location) (
void (*info_location)(DiEpoch, Addr)
)
{
VG_(needs).info_location = True;
VG_(tdict).tool_info_location = info_location;
}
void VG_(needs_malloc_replacement)(
void* (*malloc) ( ThreadId, SizeT ),
void* (*__builtin_new) ( ThreadId, SizeT ),
void* (*__builtin_new_aligned)( ThreadId, SizeT, SizeT, SizeT ),
void* (*__builtin_vec_new) ( ThreadId, SizeT ),
void* (*__builtin_vec_new_aligned)( ThreadId, SizeT, SizeT, SizeT ),
void* (*memalign) ( ThreadId, SizeT, SizeT, SizeT ),
void* (*calloc) ( ThreadId, SizeT, SizeT ),
void (*free) ( ThreadId, void* ),
void (*__builtin_delete) ( ThreadId, void* ),
void (*__builtin_delete_aligned) ( ThreadId, void*, SizeT ),
void (*__builtin_vec_delete) ( ThreadId, void* ),
void (*__builtin_vec_delete_aligned) ( ThreadId, void*, SizeT ),
void* (*realloc) ( ThreadId, void*, SizeT ),
SizeT (*malloc_usable_size) ( ThreadId, void* ),
SizeT client_malloc_redzone_szB
)
{
VG_(needs).malloc_replacement = True;
VG_(tdict).tool_malloc = malloc;
VG_(tdict).tool___builtin_new = __builtin_new;
VG_(tdict).tool___builtin_new_aligned = __builtin_new_aligned;
VG_(tdict).tool___builtin_vec_new = __builtin_vec_new;
VG_(tdict).tool___builtin_vec_new_aligned = __builtin_vec_new_aligned;
VG_(tdict).tool_memalign = memalign;
VG_(tdict).tool_calloc = calloc;
VG_(tdict).tool_free = free;
VG_(tdict).tool___builtin_delete = __builtin_delete;
VG_(tdict).tool___builtin_delete_aligned = __builtin_delete_aligned;
VG_(tdict).tool___builtin_vec_delete = __builtin_vec_delete;
VG_(tdict).tool___builtin_vec_delete_aligned = __builtin_vec_delete_aligned;
VG_(tdict).tool_realloc = realloc;
VG_(tdict).tool_malloc_usable_size = malloc_usable_size;
VG_(tdict).tool_client_redzone_szB = client_malloc_redzone_szB;
}
void VG_(needs_xml_output)( void )
{
VG_(needs).xml_output = True;
}
void VG_(needs_final_IR_tidy_pass)(
IRSB*(*final_tidy)(IRSB*)
)
{
VG_(needs).final_IR_tidy_pass = True;
VG_(tdict).tool_final_IR_tidy_pass = final_tidy;
}
/*--------------------------------------------------------------------*/
/* Tracked events. Digit 'n' on DEFn is the REGPARMness. */
#define DEF0(fn, args...) \
void VG_(fn)(void(*f)(args)) { \
VG_(tdict).fn = f; \
}
#define DEF1(fn, args...) \
void VG_(fn)(VG_REGPARM(1) void(*f)(args)) { \
VG_(tdict).fn = f; \
}
#define DEF2(fn, args...) \
void VG_(fn)(VG_REGPARM(2) void(*f)(args)) { \
VG_(tdict).fn = f; \
}
DEF0(track_new_mem_startup, Addr, SizeT, Bool, Bool, Bool, ULong)
DEF0(track_new_mem_stack_signal, Addr, SizeT, UInt)
DEF0(track_new_mem_brk, Addr, SizeT, UInt)
DEF0(track_new_mem_mmap, Addr, SizeT, Bool, Bool, Bool, ULong)
DEF0(track_copy_mem_remap, Addr, Addr, SizeT)
DEF0(track_change_mem_mprotect, Addr, SizeT, Bool, Bool, Bool)
DEF0(track_die_mem_stack_signal, Addr, SizeT)
DEF0(track_die_mem_brk, Addr, SizeT)
DEF0(track_die_mem_munmap, Addr, SizeT)
DEF2(track_new_mem_stack_4_w_ECU, Addr, UInt)
DEF2(track_new_mem_stack_8_w_ECU, Addr, UInt)
DEF2(track_new_mem_stack_12_w_ECU, Addr, UInt)
DEF2(track_new_mem_stack_16_w_ECU, Addr, UInt)
DEF2(track_new_mem_stack_32_w_ECU, Addr, UInt)
DEF2(track_new_mem_stack_112_w_ECU, Addr, UInt)
DEF2(track_new_mem_stack_128_w_ECU, Addr, UInt)
DEF2(track_new_mem_stack_144_w_ECU, Addr, UInt)
DEF2(track_new_mem_stack_160_w_ECU, Addr, UInt)
DEF0(track_new_mem_stack_w_ECU, Addr, SizeT, UInt)
DEF1(track_new_mem_stack_4, Addr)
DEF1(track_new_mem_stack_8, Addr)
DEF1(track_new_mem_stack_12, Addr)
DEF1(track_new_mem_stack_16, Addr)
DEF1(track_new_mem_stack_32, Addr)
DEF1(track_new_mem_stack_112, Addr)
DEF1(track_new_mem_stack_128, Addr)
DEF1(track_new_mem_stack_144, Addr)
DEF1(track_new_mem_stack_160, Addr)
DEF0(track_new_mem_stack, Addr, SizeT)
DEF1(track_die_mem_stack_4, Addr)
DEF1(track_die_mem_stack_8, Addr)
DEF1(track_die_mem_stack_12, Addr)
DEF1(track_die_mem_stack_16, Addr)
DEF1(track_die_mem_stack_32, Addr)
DEF1(track_die_mem_stack_112, Addr)
DEF1(track_die_mem_stack_128, Addr)
DEF1(track_die_mem_stack_144, Addr)
DEF1(track_die_mem_stack_160, Addr)
DEF0(track_die_mem_stack, Addr, SizeT)
DEF0(track_ban_mem_stack, Addr, SizeT)
DEF0(track_register_stack, Addr, Addr)
DEF0(track_pre_mem_read, CorePart, ThreadId, const HChar*, Addr, SizeT)
DEF0(track_pre_mem_read_asciiz, CorePart, ThreadId, const HChar*, Addr)
DEF0(track_pre_mem_write, CorePart, ThreadId, const HChar*, Addr, SizeT)
DEF0(track_post_mem_write, CorePart, ThreadId, Addr, SizeT)
DEF0(track_pre_reg_read, CorePart, ThreadId, const HChar*, PtrdiffT, SizeT)
DEF0(track_post_reg_write, CorePart, ThreadId, PtrdiffT, SizeT)
DEF0(track_copy_mem_to_reg, CorePart, ThreadId, Addr, PtrdiffT, SizeT)
DEF0(track_copy_reg_to_mem, CorePart, ThreadId, PtrdiffT, Addr, SizeT)
DEF0(track_post_reg_write_clientcall_return, ThreadId, PtrdiffT, SizeT, Addr)
DEF0(track_start_client_code, ThreadId, ULong)
DEF0(track_stop_client_code, ThreadId, ULong)
DEF0(track_pre_thread_ll_create, ThreadId, ThreadId)
DEF0(track_pre_thread_first_insn, ThreadId)
DEF0(track_pre_thread_ll_exit, ThreadId)
DEF0(track_pre_deliver_signal, ThreadId, Int sigNo, Bool)
DEF0(track_post_deliver_signal, ThreadId, Int sigNo)
/*--------------------------------------------------------------------*/
/*--- end ---*/
/*--------------------------------------------------------------------*/
|
