-
Notifications
You must be signed in to change notification settings - Fork 149
/
Copy pathconfig.c
973 lines (819 loc) · 25 KB
/
config.c
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
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
/*
* avrdude - A Downloader/Uploader for AVR device programmers
* Copyright (C) 2000-2004 Brian S. Dean <bsd@bsdhome.com>
*
* 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/>.
*/
/* $Id$ */
#include "ac_cfg.h"
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <stddef.h>
#include <string.h>
#include <ctype.h>
#include "avrdude.h"
#include "libavrdude.h"
#include "config.h"
#include "avrintel.h"
#include "config_gram.h"
const char *default_programmer;
const char *default_parallel;
const char *default_serial;
const char *default_spi;
double default_bitclock;
char const *default_linuxgpio;
LISTID string_list;
LISTID number_list;
PROGRAMMER * current_prog;
AVRPART * current_part;
AVRMEM * current_mem;
int current_strct;
LISTID part_list;
LISTID programmers;
bool is_alias;
int cfg_lineno;
char * cfg_infile;
extern char * yytext;
#define pgm_comp_desc(x, type) { #x, COMP_PROGRAMMER, offsetof(PROGRAMMER, x), sizeof(((PROGRAMMER *) NULL)->x), type }
#define part_comp_desc(x, type) { #x, COMP_AVRPART, offsetof(AVRPART, x), sizeof(((AVRPART *) NULL)->x), type }
#define mem_comp_desc(x, type) { #x, COMP_AVRMEM, offsetof(AVRMEM, x), sizeof(((AVRMEM *) NULL)->x), type }
// Component description for config_gram.y, will be sorted appropriately on first use
Component_t avr_comp[] = {
// PROGRAMMER
pgm_comp_desc(desc, COMP_STRING),
pgm_comp_desc(prog_modes, COMP_INT),
pgm_comp_desc(extra_features, COMP_INT),
pgm_comp_desc(baudrate, COMP_INT),
pgm_comp_desc(usbvid, COMP_INT),
pgm_comp_desc(usbdev, COMP_STRING),
pgm_comp_desc(usbsn, COMP_STRING),
pgm_comp_desc(usbvendor, COMP_STRING),
pgm_comp_desc(usbproduct, COMP_STRING),
// AVRPART
part_comp_desc(desc, COMP_STRING),
part_comp_desc(family_id, COMP_STRING),
part_comp_desc(prog_modes, COMP_INT),
part_comp_desc(mcuid, COMP_INT),
part_comp_desc(n_interrupts, COMP_INT),
part_comp_desc(n_page_erase, COMP_INT),
part_comp_desc(n_boot_sections, COMP_INT),
part_comp_desc(boot_section_size, COMP_INT),
part_comp_desc(hvupdi_variant, COMP_INT),
part_comp_desc(stk500_devcode, COMP_INT),
part_comp_desc(avr910_devcode, COMP_INT),
part_comp_desc(chip_erase_delay, COMP_INT),
part_comp_desc(pagel, COMP_CHAR),
part_comp_desc(bs2, COMP_CHAR),
part_comp_desc(timeout, COMP_INT),
part_comp_desc(stabdelay, COMP_INT),
part_comp_desc(cmdexedelay, COMP_INT),
part_comp_desc(synchloops, COMP_INT),
part_comp_desc(bytedelay, COMP_INT),
part_comp_desc(pollindex, COMP_INT),
part_comp_desc(pollvalue, COMP_CHAR),
part_comp_desc(predelay, COMP_INT),
part_comp_desc(postdelay, COMP_INT),
part_comp_desc(pollmethod, COMP_INT),
part_comp_desc(hventerstabdelay, COMP_INT), // STK500 v2 hv mode parameters
part_comp_desc(progmodedelay, COMP_INT),
part_comp_desc(latchcycles, COMP_INT),
part_comp_desc(togglevtg, COMP_INT),
part_comp_desc(poweroffdelay, COMP_INT),
part_comp_desc(resetdelayms, COMP_INT),
part_comp_desc(resetdelayus, COMP_INT),
part_comp_desc(hvleavestabdelay, COMP_INT),
part_comp_desc(resetdelay, COMP_INT),
part_comp_desc(chiperasepulsewidth, COMP_INT),
part_comp_desc(chiperasepolltimeout, COMP_INT),
part_comp_desc(chiperasetime, COMP_INT),
part_comp_desc(programfusepulsewidth, COMP_INT),
part_comp_desc(programfusepolltimeout, COMP_INT),
part_comp_desc(programlockpulsewidth, COMP_INT),
part_comp_desc(programlockpolltimeout, COMP_INT),
part_comp_desc(synchcycles, COMP_INT),
part_comp_desc(hvspcmdexedelay, COMP_INT),
part_comp_desc(idr, COMP_CHAR),
part_comp_desc(rampz, COMP_CHAR),
part_comp_desc(spmcr, COMP_CHAR),
part_comp_desc(eecr, COMP_CHAR),
part_comp_desc(eind, COMP_CHAR),
part_comp_desc(mcu_base, COMP_INT),
part_comp_desc(nvm_base, COMP_INT),
part_comp_desc(ocd_base, COMP_INT),
part_comp_desc(ocdrev, COMP_INT),
part_comp_desc(autobaud_sync, COMP_CHAR),
// AVRMEM
mem_comp_desc(paged, COMP_BOOL),
mem_comp_desc(size, COMP_INT),
mem_comp_desc(num_pages, COMP_INT),
mem_comp_desc(n_word_writes, COMP_INT),
mem_comp_desc(offset, COMP_INT),
mem_comp_desc(min_write_delay, COMP_INT),
mem_comp_desc(max_write_delay, COMP_INT),
mem_comp_desc(pwroff_after_write, COMP_INT),
{"readback_p1", COMP_AVRMEM, offsetof(AVRMEM, readback)+0, 1, COMP_CHAR },
{"readback_p2", COMP_AVRMEM, offsetof(AVRMEM, readback)+1, 1, COMP_CHAR },
mem_comp_desc(mode, COMP_INT),
mem_comp_desc(delay, COMP_INT),
mem_comp_desc(pollindex, COMP_INT),
mem_comp_desc(blocksize, COMP_INT),
mem_comp_desc(readsize, COMP_INT),
};
#define DEBUG 0
void cleanup_config(void)
{
ldestroy_cb(part_list, (void(*)(void*))avr_free_part);
ldestroy_cb(programmers, (void(*)(void*))pgm_free);
ldestroy_cb(string_list, (void(*)(void*))free_token);
ldestroy_cb(number_list, (void(*)(void*))free_token);
}
int init_config(void)
{
string_list = lcreat(NULL, 0);
number_list = lcreat(NULL, 0);
current_prog = NULL;
current_part = NULL;
current_mem = NULL;
part_list = lcreat(NULL, 0);
programmers = lcreat(NULL, 0);
is_alias = false;
cfg_lineno = 1;
cfg_infile = NULL;
return 0;
}
void *cfg_malloc(const char *funcname, size_t n) {
void *ret = malloc(n);
if(!ret) {
pmsg_error("out of memory in %s (needed %lu bytes)\n", funcname, (unsigned long) n);
exit(1);
}
memset(ret, 0, n);
return ret;
}
void *cfg_realloc(const char *funcname, void *p, size_t n) {
void *ret;
if(!(ret = p? realloc(p, n): calloc(1, n))) {
pmsg_error("out of memory in %s (needed %lu bytes)\n", funcname, (unsigned long) n);
exit(1);
}
return ret;
}
char *cfg_strdup(const char *funcname, const char *s) {
char *ret = strdup(s);
if(!ret) {
pmsg_error("out of memory in %s\n", funcname);
exit(1);
}
return ret;
}
int yywrap()
{
return 1;
}
int yyerror(char * errmsg, ...)
{
va_list args;
char message[512];
va_start(args, errmsg);
vsnprintf(message, sizeof(message), errmsg, args);
pmsg_error("%s [%s:%d]\n", message, cfg_infile, cfg_lineno);
va_end(args);
return 0;
}
int yywarning(char * errmsg, ...)
{
va_list args;
char message[512];
va_start(args, errmsg);
vsnprintf(message, sizeof(message), errmsg, args);
pmsg_warning("%s [%s:%d]\n", message, cfg_infile, cfg_lineno);
va_end(args);
return 0;
}
TOKEN * new_token(int primary) {
TOKEN * tkn = (TOKEN *) cfg_malloc("new_token()", sizeof(TOKEN));
tkn->primary = primary;
return tkn;
}
void free_token(TOKEN * tkn)
{
if (tkn) {
switch (tkn->value.type) {
case V_STR:
if (tkn->value.string)
free(tkn->value.string);
tkn->value.string = NULL;
break;
}
free(tkn);
}
}
void free_tokens(int n, ...)
{
TOKEN * t;
va_list ap;
va_start(ap, n);
while (n--) {
t = va_arg(ap, TOKEN *);
free_token(t);
}
va_end(ap);
}
TOKEN *new_number(const char *text) {
struct token_t *tkn = new_token(TKN_NUMBER);
tkn->value.type = V_NUM;
tkn->value.number = atoi(text);
#if DEBUG
msg_info("NUMBER(%d)\n", tkn->value.number);
#endif
return tkn;
}
TOKEN *new_number_real(const char *text) {
struct token_t * tkn = new_token(TKN_NUMBER);
tkn->value.type = V_NUM_REAL;
tkn->value.number_real = atof(text);
#if DEBUG
msg_info("NUMBER(%g)\n", tkn->value.number_real);
#endif
return tkn;
}
TOKEN *new_hexnumber(const char *text) {
struct token_t *tkn = new_token(TKN_NUMBER);
char * e;
tkn->value.type = V_NUM;
tkn->value.number = strtoul(text, &e, 16);
if ((e == text) || (*e != 0)) {
yyerror("cannot scan hex number %s", text);
free_token(tkn);
return NULL;
}
#if DEBUG
msg_info("HEXNUMBER(%d)\n", tkn->value.number);
#endif
return tkn;
}
TOKEN *new_constant(const char *con) {
struct token_t *tkn = new_token(TKN_NUMBER);
int assigned = 1;
tkn->value.type = V_NUM;
tkn->value.number =
!strcmp("PM_SPM", con)? PM_SPM:
!strcmp("PM_TPI", con)? PM_TPI:
!strcmp("PM_ISP", con)? PM_ISP:
!strcmp("PM_PDI", con)? PM_PDI:
!strcmp("PM_UPDI", con)? PM_UPDI:
!strcmp("PM_HVSP", con)? PM_HVSP:
!strcmp("PM_HVPP", con)? PM_HVPP:
!strcmp("PM_debugWIRE", con)? PM_debugWIRE:
!strcmp("PM_JTAG", con)? PM_JTAG:
!strcmp("PM_JTAGmkI", con)? PM_JTAGmkI:
!strcmp("PM_XMEGAJTAG", con)? PM_XMEGAJTAG:
!strcmp("PM_AVR32JTAG", con)? PM_AVR32JTAG:
!strcmp("PM_aWire", con)? PM_aWire:
!strcmp("HAS_SUFFER", con)? HAS_SUFFER:
!strcmp("HAS_VTARG_SWITCH", con)? HAS_VTARG_SWITCH:
!strcmp("HAS_VTARG_ADJ", con)? HAS_VTARG_ADJ:
!strcmp("HAS_VTARG_READ", con)? HAS_VTARG_READ:
!strcmp("pseudo", con)? 2:
!strcmp("yes", con) || !strcmp("true", con)? 1:
!strcmp("no", con) || !strcmp("false", con)? 0:
(assigned = 0);
if(!assigned) {
yyerror("can't identify constant %s", con);
free_token(tkn);
return NULL;
}
#if DEBUG
msg_info("CONSTANT(%s=%d)\n", con, tkn->value.number);
#endif
return tkn;
}
TOKEN *new_string(const char *text) {
struct token_t *tkn = new_token(TKN_STRING);
tkn->value.type = V_STR;
tkn->value.string = cfg_strdup("new_string()", text);
#if DEBUG
msg_info("STRING(%s)\n", tkn->value.string);
#endif
return tkn;
}
TOKEN *new_keyword(int primary) {
return new_token(primary);
}
void print_token(TOKEN * tkn)
{
if (!tkn)
return;
msg_info("token = %d = ", tkn->primary);
switch (tkn->value.type) {
case V_NUM:
msg_info("NUMBER, value=%d", tkn->value.number);
break;
case V_NUM_REAL:
msg_info("NUMBER, value=%g", tkn->value.number_real);
break;
case V_STR:
msg_info("STRING, value=%s", tkn->value.string);
break;
default:
msg_info("<other>");
break;
}
msg_info("\n");
}
void pyytext(void)
{
#if DEBUG
msg_info("TOKEN: %s\n", yytext);
#endif
}
#ifdef HAVE_YYLEX_DESTROY
/* reset lexer and free any allocated memory */
extern int yylex_destroy(void);
#endif
int read_config(const char * file)
{
FILE * f;
int r;
if(!(cfg_infile = realpath(file, NULL))) {
pmsg_ext_error("cannot determine realpath() of config file %s: %s\n", file, strerror(errno));
return -1;
}
f = fopen(cfg_infile, "r");
if (f == NULL) {
pmsg_ext_error("cannot open config file %s: %s\n", cfg_infile, strerror(errno));
free(cfg_infile);
cfg_infile = NULL;
return -1;
}
cfg_lineno = 1;
yyin = f;
r = yyparse();
#ifdef HAVE_YYLEX_DESTROY
/* reset lexer and free any allocated memory */
yylex_destroy();
#endif
fclose(f);
if(cfg_infile) {
free(cfg_infile);
cfg_infile = NULL;
}
return r;
}
// Adapted version of a neat empirical hash function from comp.lang.c by Daniel Bernstein
unsigned strhash(const char *str) {
unsigned c, hash = 5381, n = 0;
while((c = (unsigned char) *str++) && n++ < 20)
hash = 33*hash ^ c;
return hash;
}
static char **hstrings[1<<12];
// Return a copy of the argument as hashed string
const char *cache_string(const char *p) {
int h, k;
char **hs;
if(!p)
p = "(NULL)";
h = strhash(p) % (sizeof hstrings/sizeof*hstrings);
if(!(hs=hstrings[h]))
hs = hstrings[h] = (char **) cfg_realloc("cache_string()", NULL, (16+1)*sizeof**hstrings);
for(k=0; hs[k]; k++)
if(*p == *hs[k] && !strcmp(p, hs[k]))
return hs[k];
if(k && k%16 == 0)
hstrings[h] = (char **) cfg_realloc("cache_string()", hstrings[h], (k+16+1)*sizeof**hstrings);
hstrings[h][k+1]=NULL;
return hstrings[h][k] = cfg_strdup("cache_string()", p);
}
static LISTID cfg_comms; // A chain of comment lines
static LISTID cfg_prologue; // Comment lines at start of avrdude.conf
static char *lkw; // Last seen keyword
static int lkw_lineno; // Line number of that
static LISTID cfg_strctcomms; // Passed on to config_gram.y
static LISTID cfg_pushedcomms; // Temporarily pushed main comments
static int cfg_pushed; // ... for memory sections
COMMENT *locate_comment(const LISTID comments, const char *where, int rhs) {
if(comments)
for(LNODEID ln=lfirst(comments); ln; ln=lnext(ln)) {
COMMENT *n = ldata(ln);
if(n && rhs == n->rhs && n->kw && strcmp(where, n->kw) == 0)
return n;
}
return NULL;
}
static void addcomment(int rhs) {
if(lkw) {
COMMENT *node = cfg_malloc("addcomment()", sizeof(*node));
node->rhs = rhs;
node->kw = cfg_strdup("addcomment()", lkw);
node->comms = cfg_comms;
cfg_comms = NULL;
if(!cfg_strctcomms)
cfg_strctcomms = lcreat(NULL, 0);
ladd(cfg_strctcomms, node);
}
}
// Capture prologue during parsing (triggered by lexer.l)
void cfg_capture_prologue(void) {
cfg_prologue = cfg_comms;
cfg_comms = NULL;
}
LISTID cfg_get_prologue(void) {
return cfg_prologue;
}
// Captures comments during parsing
void capture_comment_str(const char *com, int lineno) {
if(!cfg_comms)
cfg_comms = lcreat(NULL, 0);
ladd(cfg_comms, cfg_strdup("capture_comment_str()", com));
// Last keyword lineno is the same as this comment's
if(lkw && lkw_lineno == lineno)
addcomment(1); // Register comms to show right of lkw = ...;
}
// Capture assignments (keywords left of =) and associate comments to them
void capture_lvalue_kw(const char *kw, int lineno) {
if(!strcmp(kw, "memory")) { // Push part comments and start memory comments
if(!cfg_pushed) { // config_gram.y pops the part comments
cfg_pushed = 1;
cfg_pushedcomms = cfg_strctcomms;
cfg_strctcomms = NULL;
}
}
if(!strcmp(kw, "programmer") || !strcmp(kw, "part") || !strcmp(kw, "memory"))
kw = "*"; // Show comment before programmer/part/memory
if(lkw)
free(lkw);
lkw = cfg_strdup("capture_lvalue_kw()", kw);
lkw_lineno = lineno;
if(cfg_comms) // Accrued list of # one-line comments
addcomment(0); // Register comment to appear before lkw assignment
}
// config_gram.y calls this once for each programmer/part/memory structure
LISTID cfg_move_comments(void) {
capture_lvalue_kw(";", -1);
LISTID ret = cfg_strctcomms;
cfg_strctcomms = NULL;
return ret;
}
// config_gram.y calls this after ingressing the memory structure
void cfg_pop_comms(void) {
if(cfg_pushed) {
cfg_pushed = 0;
cfg_strctcomms = cfg_pushedcomms;
}
}
// Convert the next n hex digits of s to a hex number
static unsigned int tohex(const unsigned char *s, unsigned int n) {
int ret, c;
ret = 0;
while(n--) {
ret *= 16;
c = *s++;
ret += c >= '0' && c <= '9'? c - '0': c >= 'a' && c <= 'f'? c - 'a' + 10: c - 'A' + 10;
}
return ret;
}
/*
* Create a utf-8 character sequence from a single unicode character.
* Permissive for some invalid unicode sequences but not for those with
* high bit set). Returns numbers of characters written (0-6).
*/
static int wc_to_utf8str(unsigned int wc, unsigned char *str) {
if(!(wc & ~0x7fu)) {
*str = (char) wc;
return 1;
}
if(!(wc & ~0x7ffu)) {
*str++ = (char) ((wc >> 6) | 0xc0);
*str++ = (char) ((wc & 0x3f) | 0x80);
return 2;
}
if(!(wc & ~0xffffu)) {
*str++ = (char) ((wc >> 12) | 0xe0);
*str++ = (char) (((wc >> 6) & 0x3f) | 0x80);
*str++ = (char) ((wc & 0x3f) | 0x80);
return 3;
}
if(!(wc & ~0x1fffffu)) {
*str++ = (char) ((wc >> 18) | 0xf0);
*str++ = (char) (((wc >> 12) & 0x3f) | 0x80);
*str++ = (char) (((wc >> 6) & 0x3f) | 0x80);
*str++ = (char) ((wc & 0x3f) | 0x80);
return 4;
}
if(!(wc & ~0x3ffffffu)) {
*str++ = (char) ((wc >> 24) | 0xf8);
*str++ = (char) (((wc >> 18) & 0x3f) | 0x80);
*str++ = (char) (((wc >> 12) & 0x3f) | 0x80);
*str++ = (char) (((wc >> 6) & 0x3f) | 0x80);
*str++ = (char) ((wc & 0x3f) | 0x80);
return 5;
}
if(!(wc & ~0x7fffffffu)) {
*str++ = (char) ((wc >> 30) | 0xfc);
*str++ = (char) (((wc >> 24) & 0x3f) | 0x80);
*str++ = (char) (((wc >> 18) & 0x3f) | 0x80);
*str++ = (char) (((wc >> 12) & 0x3f) | 0x80);
*str++ = (char) (((wc >> 6) & 0x3f) | 0x80);
*str++ = (char) ((wc & 0x3f) | 0x80);
return 6;
}
return 0;
}
// Unescape C-style strings, destination d must hold enough space (and can be source s)
unsigned char *cfg_unescapeu(unsigned char *d, const unsigned char *s) {
unsigned char *ret = d;
int n, k;
while(*s) {
switch (*s) {
case '\\':
switch (*++s) {
case '\n': // String continuation over new line
#if '\n' != '\r'
case '\r':
#endif
--d;
break;
case 'n':
*d = '\n';
break;
case 't':
*d = '\t';
break;
case 'a':
*d = '\a';
break;
case 'b':
*d = '\b';
break;
case 'e': // Non-standard ESC
*d = 27;
break;
case 'f':
*d = '\f';
break;
case 'r':
*d = '\r';
break;
case 'v':
*d = '\v';
break;
case '?':
*d = '?';
break;
case '`':
*d = '`';
break;
case '"':
*d = '"';
break;
case '\'':
*d = '\'';
break;
case '\\':
*d = '\\';
break;
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7': // 1-3 octal digits
n = *s - '0';
for(k = 0; k < 2 && s[1] >= '0' && s[1] <= '7'; k++) // Max 2 more octal characters
n *= 8, n += s[1] - '0', s++;
*d = n;
break;
case 'x': // Unlimited hex digits
for(k = 0; isxdigit(s[k + 1]); k++)
continue;
if(k > 0) {
*d = tohex(s + 1, k);
s += k;
} else { // No hex digits after \x? copy \x
*d++ = '\\';
*d = 'x';
}
break;
case 'u': // Exactly 4 hex digits and valid unicode
if(isxdigit(s[1]) && isxdigit(s[2]) && isxdigit(s[3]) && isxdigit(s[4]) &&
(n = wc_to_utf8str(tohex(s+1, 4), d))) {
d += n - 1;
s += 4;
} else { // Invalid \u sequence? copy \u
*d++ = '\\';
*d = 'u';
}
break;
case 'U': // Exactly 6 hex digits and valid unicode
if(isxdigit(s[1]) && isxdigit(s[2]) && isxdigit(s[3]) && isxdigit(s[4]) && isxdigit(s[5]) && isxdigit(s[6]) &&
(n = wc_to_utf8str(tohex(s+1, 6), d))) {
d += n - 1;
s += 6;
} else { // Invalid \U sequence? copy \U
*d++ = '\\';
*d = 'U';
}
break;
default: // Keep the escape sequence (C would warn and remove \)
*d++ = '\\';
*d = *s;
}
break;
default: // Not an escape sequence: just copy the character
*d = *s;
}
d++;
s++;
}
*d = *s; // Terminate
return ret;
}
// Unescape C-style strings, destination d must hold enough space (and can be source s)
char *cfg_unescape(char *d, const char *s) {
return (char *) cfg_unescapeu((unsigned char *) d, (const unsigned char *) s);
}
// Return an escaped string that looks like a C-style input string incl quotes, memory is malloc'd
char *cfg_escape(const char *s) {
char buf[50*1024], *d = buf;
*d++ = '"';
for(; *s && d-buf < (long) sizeof buf-7; s++) {
switch(*s) {
case '\n':
*d++ = '\\'; *d++ = 'n';
break;
case '\t':
*d++ = '\\'; *d++ = 't';
break;
case '\a':
*d++ = '\\'; *d++ = 'a';
break;
case '\b':
*d++ = '\\'; *d++ = 'b';
break;
case '\f':
*d++ = '\\'; *d++ = 'f';
break;
#if '\r' != '\n'
case '\r':
*d++ = '\\'; *d++ = 'r';
break;
#endif
case '\v':
*d++ = '\\'; *d++ = 'v';
break;
case '\"':
*d++ = '\\'; *d++ = '\"';
break;
default:
if(*s == 0x7f || (*s >= 0 && *s < 32)) {
sprintf(d, "\\%03o", *s);
d += strlen(d);
} else
*d++ = *s;
}
}
*d++ = '"';
*d = 0;
return cfg_strdup("cfg_escape()", buf);
}
static int cmp_comp(const void *v1, const void *v2) {
const Component_t *c1 = v1, *c2 = v2;
int ret = strcmp(c1->name, c2->name);
return ret? ret: c1->strct - c2->strct;
}
Component_t *cfg_comp_search(const char *name, int strct) {
static int init;
Component_t key;
if(!init++)
qsort(avr_comp, sizeof avr_comp/sizeof*avr_comp, sizeof(Component_t), cmp_comp);
key.name = name;
key.strct = strct;
return bsearch(&key, avr_comp, sizeof avr_comp/sizeof*avr_comp, sizeof(Component_t), cmp_comp);
}
const char *cfg_strct_name(int strct) {
switch(strct) {
case COMP_CONFIG_MAIN: return "avrdude.conf main";
case COMP_AVRPART: return "AVRPART";
case COMP_AVRMEM: return "AVRMEM";
case COMP_PROGRAMMER: return "PROGRAMMER";
}
return "unknown struct";
}
const char *cfg_v_type(int type) {
switch(type) {
case V_NONE: return "void";
case V_NUM: return "number";
case V_NUM_REAL: return "real";
case V_STR: return "string";
case V_COMPONENT: return "component";
}
return "unknown v type";
}
const char *cfg_comp_type(int type) {
switch(type) {
case COMP_INT: return "number";
case COMP_SHORT: return "short";
case COMP_CHAR: return "char";
case COMP_BOOL: return "bool";
case COMP_STRING: return "string";
case COMP_CHAR_ARRAY: return "byte array";
case COMP_INT_LISTID: return "number list";
case COMP_STRING_LISTID: return "string list";
case COMP_OPCODE: return "opcode";
case COMP_PIN: return "pin";
case COMP_PIN_LIST: return "pin list";
}
return "unknown comp type";
}
// Used by config_gram.y to assign a component in one of the relevant structures with a value
void cfg_assign(char *sp, int strct, Component_t *cp, VALUE *v) {
const char *str;
int num;
switch(cp->type) {
case COMP_BOOL:
case COMP_CHAR:
case COMP_SHORT:
case COMP_INT:
if(v->type != V_NUM) {
yywarning("%s in %s expects a %s but is assigned a %s",
cp->name, cfg_strct_name(strct), cfg_comp_type(cp->type), cfg_v_type(v->type));
return;
}
// TODO: consider endianess (code currently assumes little endian)
num = v->number;
memcpy(sp+cp->offset, &num, cp->size);
break;
case COMP_STRING:
if(v->type != V_STR) {
yywarning("%s in %s expects a string but is assigned a %s",
cp->name, cfg_strct_name(strct), cfg_v_type(v->type));
return;
}
str = cache_string(v->string);
memcpy(sp+cp->offset, &str, cp->size);
break;
// TODO: implement COMP_CHAR_ARRAY, COMP_INT_LISTID, COMP_STRING_LISTID, ...
default:
yywarning("%s in %s expects a %s but that is not implemented",
cp->name, cfg_strct_name(strct), cfg_comp_type(cp->type));
}
}
// Automatically assign an mcuid if known from avrintel.c table
void cfg_update_mcuid(AVRPART *part) {
// Don't assign an mcuid for template parts that has a space in desc
if(!part->desc || *part->desc == 0 || strchr(part->desc, ' '))
return;
// Don't assign an mcuid for template parts where id starts with "."
if(!part->id || !*part->id || *part->id == '.')
return;
// Don't assign an mcuid for 32-bit AVR parts
if(part->prog_modes & PM_aWire)
return;
// Find an entry that shares the same name, overwrite mcuid with known, existing mcuid
for(size_t i=0; i < sizeof uP_table/sizeof *uP_table; i++) {
if(strcasecmp(part->desc, uP_table[i].name) == 0) {
if(part->mcuid != (int) uP_table[i].mcuid) {
if(part->mcuid >= 0 && verbose >= MSG_DEBUG)
yywarning("overwriting mcuid of part %s to be %d", part->desc, uP_table[i].mcuid);
part->mcuid = uP_table[i].mcuid;
}
return;
}
}
// None have the same name: an entry with part->mcuid might be an error
for(size_t i=0; i < sizeof uP_table/sizeof *uP_table; i++)
if(part->mcuid == (int) uP_table[i].mcuid) {
// Complain unless it can be considered a variant, eg, ATmega32L and ATmega32
AVRMEM *flash = avr_locate_mem(part, "flash");
if(flash) {
size_t l1 = strlen(part->desc), l2 = strlen(uP_table[i].name);
if(strncasecmp(part->desc, uP_table[i].name, l1 < l2? l1: l2) ||
flash->size != uP_table[i].flashsize ||
flash->page_size != uP_table[i].pagesize ||
part->n_interrupts != (int8_t) uP_table[i].ninterrupts)
yywarning("mcuid %d is reserved for %s, use a free number >= %d",
part->mcuid, uP_table[i].name, sizeof uP_table/sizeof *uP_table);
}
return;
}
// Range check
if(part->mcuid < 0 || part->mcuid >= UB_N_MCU)
yywarning("mcuid %d for %s is out of range [0..%d], use a free number >= %d",
part->mcuid, part->desc, UB_N_MCU-1, sizeof uP_table/sizeof *uP_table);
}