/
nci_thunk_gen.pir
1405 lines (1139 loc) · 34.3 KB
/
nci_thunk_gen.pir
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
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
# Copyright (C) 2010-2015, Parrot Foundation.
=head1 NAME
tools/dev/nci_thunk_gen.pir - Build up native call thunk routines
=head1 SYNOPSIS
$ perl -alne'if (/dlfunc/) {print substr($F[4],1,1)," ",substr($F[4],2,-1)}' \
runtime/parrot/library/SDL.pir | sort -u > src/nci/SDL.nci
$ ./parrot tools/dev/nci_thunk_gen.pir --dynext --target=loader-dynext \
-o src/dynext/SDL_thunks.c <src/nci/SDL.nci
$ ./parrot tools/dev/nci_thunk_gen.pir --core --loader-name=Parrot_nci_load_extra_thunks \
--no-warn-dups -o src/nci/extra_thunks.c <src/nci/extra_thunks.nci
$ tools/dev/mk_nci_thunks.pl
=head1 DESCRIPTION
This script creates static Native Call Interface files useful to pre-cache ffi signatures
or when I<libffi> is not available. It parses a file of function signatures of the form:
<return-type-specifier><ws><parameter-type-specifiers>[<ws>][#<comment>]
...
Empty lines and lines containing only whitespace or comment are ignored.
The types specifiers are documented in F<src/nci/extra_thunks.nci>.
=head1 SEE ALSO
F<ols/dev/mk_nci_thunks.pl>,
F<src/nci/core_thunks.nci>,
F<src/nci/extra_thunks.nci>,
F<docs/pdds/draft/pdd16_native_call.pod>.
=cut
.loadlib 'bit_ops'
.include 'hash_key_type.pasm'
.include 'datatypes.pasm'
.macro_const VERSION 0.03
.macro_const SIG_TABLE_GLOBAL_NAME 'signature_table'
.macro_const OPTS_GLOBAL_NAME 'options'
.sub 'main' :main
.param pmc argv
# initialize global variables
'gen_sigtable'()
'get_options'(argv)
.local string targ
targ = 'read_from_opts'('target')
.local pmc sigs
sigs = 'read_sigs'()
$S0 = 'read_from_opts'('output')
$P0 = new ['FileHandle']
$P0.'open'($S0, 'w')
$P1 = getinterp
$P1.'stdout_handle'($P0)
if targ == 'head' goto get_targ
if targ == 'thunks' goto get_targ
if targ == 'loader' goto get_targ
if targ == 'loader-dynext' goto get_dynext_loader
if targ == 'coda' goto get_targ
if targ == 'all' goto all
if targ == 'all-dynext' goto all_dynext
if targ == 'names' goto names
if targ == 'signatures' goto signatures
# unknown target
$S0 = 'sprintf'("Unknown target type '%s'", targ)
die $S0
all:
$S0 = 'get_head'(sigs)
say $S0
.local string core
core = 'read_from_opts'('core')
unless core goto end_core
# core decl already in include/parrot/nci.h
$S0 = 'get_loader_decl'(sigs)
print $S0
say ";"
end_core:
$S0 = 'end_head'(sigs)
say $S0
$S0 = 'get_thunks'(sigs)
say $S0
$S0 = 'get_loader'(sigs)
say $S0
$S0 = 'get_coda'(sigs)
say $S0
exit 0
all_dynext:
$S0 = 'get_head'(sigs)
say $S0
$S0 = 'get_dynext_loader_decl'(sigs)
print $S0
say ";"
$S0 = 'end_head'(sigs)
say $S0
$S0 = 'get_thunks'(sigs)
say $S0
$S0 = 'get_dynext_loader'(sigs)
say $S0
$S0 = 'get_coda'(sigs)
say $S0
exit 0
get_dynext_loader:
$S0 = 'get_dynext_loader'(sigs)
say $S0
exit 0
get_targ:
$S0 = concat 'get_', targ
$P0 = get_global $S0
$S1 = $P0(sigs)
say $S1
exit 0
names:
die "names not yet implemented"
signatures:
die "signatures not yet implemented"
.end
# getopt stuff {{{
.macro_const OUTPUT 'output'
.macro_const THUNK_STORAGE_CLASS 'thunk-storage-class'
.macro_const THUNK_NAME_PROTO 'thunk-name-proto'
.macro_const LOADER_STORAGE_CLASS 'loader-storage-class'
.macro_const LOADER_NAME 'loader-name'
.macro_const CORE 'core'
.macro_const NO_WARN_DUPS 'no-warn-dups'
.sub 'get_options'
.param pmc argv
load_bytecode 'Getopt/Obj.pbc'
.local pmc getopt
getopt = new ['Getopt';'Obj']
push getopt, 'help|h'
push getopt, 'version|v'
push getopt, 'no-warn-dups|f'
push getopt, 'core'
push getopt, 'dynext'
push getopt, 'output|o=s'
push getopt, 'target=s'
push getopt, 'thunk-storage-class=s'
push getopt, 'thunk-name-proto=s'
push getopt, 'loader-storage-class=s'
push getopt, 'loader-name=s'
.local string prog_name
prog_name = shift argv
.local pmc opt
opt = getopt.'get_options'(argv)
$I0 = opt['help']
if $I0 goto print_help
$I0 = opt['version']
if $I0 goto print_version
'fixup_opts'(opt)
set_global .OPTS_GLOBAL_NAME, opt
.return()
print_help:
'usage'(prog_name)
print_version:
'version'(prog_name)
.end
.sub 'usage'
.param string prog_name
print prog_name
say ' - Parrot NCI thunk library creation utility'
say <<'USAGE'
Creates a C file of routines suitable for use as Parrot NCI thunks.
Usage ./parrot nci_thunk_gen.pir [options] -o output_c_file.c <input_signature_list.nci
Options
--help print this message and exit
--version print the version number of this utility
-f --no-warn-dups don't complain about duplicated signatures. Default is to warn.
--core output a thunks file suitable for inclusion in Parrot core. Default is no.
--dynext use default values for loader-name, loader-storage-class, and target
suitable for use in a Parrot dynext library.
-o --output <file> specify output file to use.
--target <target> select what to output (valid options are 'head', 'thunks',
'loader', 'loader-dynext', 'coda', 'all', 'all-dynext', 'names', and
'signatures'). Default value is 'all'
--thunk-storage-class <storage class>
set the storage class used for the thunks. Default value is 'static'.
--thunk-name-proto <printf prototype>
set the prototype used for the thunk function names. Must be a printf
format with arity 1. Default value is 'pcf_%s'
--loader-storage-class
set the storage class used for the loader function. Default value is none.
--loader-name set the name used for the loader function. Default value is
'Parrot_load_nci_thunks'.
USAGE
exit 0
.end
.sub 'version'
.param string prog_name
print prog_name
print ' version '
say .VERSION
exit 0
.end
.sub 'fixup_opts'
.param pmc opts
$I0 = defined opts['no-warn-dups']
if $I0 goto end_no_warn_dups
opts['no-warn-dups'] = ''
end_no_warn_dups:
$I0 = defined opts['core']
if $I0 goto in_core
opts['core'] = ''
goto end_core
in_core:
opts['core'] = 'true'
end_core:
$I0 = defined opts['dynext']
if $I0 goto is_dynext
opts['dynext'] = ''
goto end_dynext
is_dynext:
$I0 = defined opts['target']
if $I0 goto end_dynext_target
opts['target'] = 'all-dynext'
end_dynext_target:
$I0 = defined opts['loader-storage-class']
if $I0 goto end_dynext_loader_storage_class
opts['loader-storage-class'] = 'PARROT_DYNEXT_EXPORT'
end_dynext_loader_storage_class:
$I0 = defined opts['loader-name']
if $I0 goto end_dynext_loader_name
$S0 = opts['output']
($S0, $S1, $S0) = 'file_basename'($S0, '.c')
$S0 = 'sprintf'('Parrot_lib_%s_init', $S1)
opts['loader-name'] = $S0
end_dynext_loader_name:
end_dynext:
$I0 = defined opts['target']
if $I0 goto end_target
opts['target'] = 'all'
end_target:
$I0 = defined opts['thunk-storage-class']
if $I0 goto end_thunk_storage_class
opts['thunk-storage-class'] = 'static'
end_thunk_storage_class:
$I0 = defined opts['thunk-name-proto']
if $I0 goto end_thunk_name_proto
opts['thunk-name-proto'] = 'pcf_%s'
end_thunk_name_proto:
$S0 = opts['thunk-name-proto']
$I0 = 'printf_arity'($S0)
if $I0 == 1 goto end_thunk_name_proto_printf_arity
'sprintf'("Provided proto for 'thunk-name-proto' is of incorrect arity %i (expected 1)", $I0)
die $S0
end_thunk_name_proto_printf_arity:
$I0 = defined opts['loader-storage-class']
if $I0 goto end_loader_storage_class
opts['loader-storage-class'] = ''
end_loader_storage_class:
$I0 = defined opts['loader-name']
if $I0 goto end_loader_name
opts['loader-name'] = 'Parrot_load_nci_thunks'
end_loader_name:
.end
.sub 'read_from_opts'
.param string key
.local pmc opts
opts = get_global .OPTS_GLOBAL_NAME
$I0 = defined opts[key]
unless $I0 goto not_present
$S0 = opts[key]
.return ($S0)
not_present:
$S0 = 'sprintf'("Parameter '%s' required but not provided", key)
die $S0
.end
# }}}
# get_{head,thunks,loader,dynext_loader,coda} {{{
.sub 'get_head'
.param pmc ignored :slurpy
.local string in_core
in_core = 'read_from_opts'(.CORE)
.local string ext_defn
ext_defn = ''
if in_core goto end_ext_defn
ext_defn = '#define PARROT_IN_EXTENSION'
end_ext_defn:
.local string c_file
c_file = 'read_from_opts'(.OUTPUT)
.local string str_file
($S0, str_file, $S0) = 'file_basename'(c_file, '.c')
str_file = concat str_file, '.str'
.local string head
head = 'sprintf'(<<'HEAD', c_file, ext_defn, str_file)
/* ex: set ro ft=c:
* !!!!!!! DO NOT EDIT THIS FILE !!!!!!!
*
* This file is generated automatically by tools/dev/nci_thunk_gen.pir
*
* Any changes made here will be lost!
*
*/
/* %s
* Copyright (C) 2010-2015, Parrot Foundation.
* Overview:
* Native Call Interface routines.
* Code to call C from parrot without libffi.
*/
%s
#include "parrot/parrot.h"
#include "parrot/nci.h"
#include "pmc/pmc_nci.h"
#ifdef PARROT_IN_EXTENSION
/* external libraries can't have strings statically compiled into parrot */
# define CONST_STRING(i, s) Parrot_str_new_constant((i), (s))
#else
# include "%s"
#endif
/* HEADERIZER HFILE: none */
HEAD
.return (head)
.end
.sub 'end_head'
.param pmc ignored :slurpy
.local string head
head = 'sprintf'(<<'HEAD')
/* HEADERIZER STOP */
/* All our static functions that call in various ways. */
HEAD
.return (head)
.end
.sub 'get_thunks'
.param pmc sigs
.local string code
.local int i, n
code = ''
i = 0
n = sigs
loop:
if i >= n goto end_loop
.local pmc sig
sig = sigs[i]
$S0 = 'sig_to_fn_code'(sig)
code = concat code, $S0
inc i
goto loop
end_loop:
.return (code)
.end
.sub 'get_loader'
.param pmc sigs
$S0 = 'get_loader_decl'(sigs)
$S1 = 'get_loader_body'(sigs)
$S2 = 'sprintf'(<<'LOADER', $S0, $S1)
%s {
%s
}
LOADER
.return ($S2)
.end
.sub 'get_loader_decl'
.param pmc sigs
$S0 = 'read_from_opts'(.LOADER_STORAGE_CLASS)
$S1 = 'read_from_opts'(.LOADER_NAME)
$S2 = 'sprintf'("%s void\n%s(PARROT_INTERP)", $S0, $S1)
.return ($S2)
.end
.sub 'get_dynext_loader'
.param pmc sigs
$S0 = 'get_dynext_loader_decl'(sigs)
$S1 = 'get_loader_body'(sigs)
$S2 = 'sprintf'(<<'LOADER', $S0, $S1)
%s {
%s
}
LOADER
.return ($S2)
.end
.sub 'get_dynext_loader_decl'
.param pmc sigs
$S0 = 'read_from_opts'(.LOADER_STORAGE_CLASS)
$S1 = 'read_from_opts'(.LOADER_NAME)
$S2 = 'sprintf'("%s void\n%s(PARROT_INTERP, SHIM(PMC *lib))", $S0, $S1)
.return ($S2)
.end
.sub 'get_loader_body'
.param pmc sigs
.local string code
code = 'sprintf'(<<'HEADER', $S0, $S1)
PMC * const iglobals = interp->iglobals;
PMC *nci_funcs;
PMC *temp_pmc;
PARROT_ASSERT(!(PMC_IS_NULL(iglobals)));
nci_funcs = VTABLE_get_pmc_keyed_int(interp, iglobals, IGLOBALS_NCI_FUNCS);
PARROT_ASSERT(!(PMC_IS_NULL(nci_funcs)));
HEADER
.local int i, n
i = 0
n = sigs
loop:
unless i < n goto end_loop
.local pmc sig
sig = shift sigs
.local string fn_name
fn_name = 'sig_to_fn_name'(sig)
.local pmc sb
sb = new ['StringBuilder']
push sb, "{ "
$I0 = 0
$I1 = elements sig
array_loop:
unless $I0 < $I1 goto end_array_loop
$I2 = sig[$I0]
$S1 = $I2
push sb, $S1
push sb, ", "
inc $I0
goto array_loop
end_array_loop:
push sb, "}"
$S0 = sb
$S0 = 'sprintf'(<<'TEMPLATE', $I1, $S0, fn_name)
{
const int n = %s;
static const int sig[] = %s;
PMC *sig_pmc = Parrot_pmc_new_init_int(interp, enum_class_FixedIntegerArray, n);
int i;
for (i = 0; i < n; i++)
VTABLE_set_integer_keyed_int(interp, sig_pmc, i, sig[i]);
temp_pmc = Parrot_pmc_new(interp, enum_class_UnManagedStruct);
VTABLE_set_pointer(interp, temp_pmc, (void *)%s);
VTABLE_set_pmc_keyed(interp, nci_funcs, sig_pmc, temp_pmc);
}
TEMPLATE
code = concat code, $S0
inc i
goto loop
end_loop:
.return (code)
.end
.sub 'get_coda'
.param pmc ignored :slurpy
.return (<<'CODA')
/*
* Local variables:
* c-file-style: "parrot"
* End:
* vim: expandtab shiftwidth=4 cinoptions='\:2=2' :
*/
CODA
.end
# }}}
# sig_to_* {{{
.sub 'sig_to_fn_code'
.param pmc sig
.local string fn_decl
fn_decl = 'sig_to_fn_decl'(sig)
.local string var_decls
var_decls = 'sig_to_var_decls'(sig)
.local string preamble
preamble = 'sig_to_preamble'(sig)
.local string call
call = 'sig_to_call'(sig)
.local string postamble
postamble = 'sig_to_postamble'(sig)
.local string fn_code
fn_code = 'sprintf'("%s{\n%s%s%s%s}\n", fn_decl, var_decls, preamble, call, postamble)
.return (fn_code)
.end
.sub 'sig_to_postamble'
.param pmc sig
.local pmc postamble, pcc_sig, pcc_retv
postamble = new ['ResizableStringArray']
pcc_sig = new ['ResizableStringArray']
pcc_retv = new ['ResizableStringArray']
.local int i, n, sig_elt
i = 0
n = elements sig
loop:
unless i < n goto end_loop
sig_elt = sig[i]
if sig_elt == .DATATYPE_VOID goto next
$I1 = iseq i, 0
$I2 = band sig_elt, .DATATYPE_REF_FLAG
$I3 = or $I1, $I2
if sig_elt == .DATATYPE_PSHORT goto ref
if sig_elt == .DATATYPE_PINT goto ref
if sig_elt == .DATATYPE_PLONG goto ref
if sig_elt == .DATATYPE_CSTR goto ref
unless $I3 goto next
ref:
$P0 = 'map_from_sig_table'('postamble_tmpl', sig_elt)
$S0 = $P0[0]
$S0 = 'fill_tmpl_int'($S0, i)
push postamble, $S0
$P0 = 'map_from_sig_table'('sig_char', sig_elt)
$S0 = $P0[0]
$S0 = 'fill_tmpl_int'($S0, i)
push pcc_sig, $S0
$S0 = "t_%i"
$S0 = 'fill_tmpl_int'($S0, i)
push pcc_retv, $S0
next:
inc i
goto loop
end_loop:
$I0 = elements pcc_sig
unless $I0 goto empty_ret
$S0 = join ";\n ", postamble
$S1 = join '', pcc_sig
$S2 = join ', ', pcc_retv
$S3 = 'sprintf'(<<'TEMPLATE', $S0, $S1, $S2)
%s;
Parrot_pcc_set_call_from_c_args(interp, call_object, "%s", %s);
TEMPLATE
.return ($S3)
empty_ret:
$S0 = <<'RET'
Parrot_pcc_set_call_from_c_args(interp, call_object, "");
RET
.return ($S0)
.end
.sub 'sig_to_call'
.param pmc sig
.local string return_assign
$I0 = sig[0]
$P0 = 'map_from_sig_table'('func_call_assign', $I0)
return_assign = $P0[0]
.local int i, n
.local string call_params
i = 1
n = elements sig
dec n
$P0 = 'xtimes'('v_%i', n)
'fill_tmpls_ascending_ints'($P0, 1)
loop:
unless i <= n goto end_loop
$I0 = sig[i]
$I1 = band $I0, .DATATYPE_REF_FLAG
unless $I1 goto next
$I0 = i - 1
$S0 = $P0[$I0]
$S0 = concat "&", $S0
$P0[$I0] = $S0
next:
inc i
goto loop
end_loop:
call_params = join ', ', $P0
.local string pcc_sig
$P0 = 'map_from_sig_table'('sig_char', sig :flat)
$S0 = shift $P0
pcc_sig = join "", $P0
if pcc_sig != "v" goto end_call_params_void
call_params = ""
end_call_params_void:
.local string call
call = 'sprintf'(<<'TEMPLATE', return_assign, call_params)
GETATTR_NCI_orig_func(interp, nci, orig_func);
fn_pointer = (func_t)D2FPTR(orig_func);
%s (*fn_pointer)(%s);
TEMPLATE
.return (call)
.end
.sub 'sig_to_preamble'
.param pmc sig
.local string preamble
preamble = ""
.local string pcc_sig
$P0 = 'map_from_sig_table'('sig_char', sig :flat)
$S0 = shift $P0
pcc_sig = join "", $P0
if pcc_sig != "v" goto end_handle_v
preamble = 'sprintf'(<<'TEMPLATE')
Parrot_pcc_fill_params_from_c_args(interp, call_object, "");
TEMPLATE
goto return
end_handle_v:
.local string fill_params
$I0 = elements sig
dec $I0
$P0 = 'xtimes'(', &t_%i', $I0)
'fill_tmpls_ascending_ints'($P0, 1)
fill_params = join '', $P0
.local string extra_preamble
$P0 = 'map_from_sig_table'('preamble_tmpl', sig :flat)
$S0 = shift $P0
'fill_tmpls_ascending_ints'($P0, 1)
extra_preamble = join ";\n ", $P0
preamble = 'sprintf'(<<'TEMPLATE', pcc_sig, fill_params, extra_preamble)
Parrot_pcc_fill_params_from_c_args(interp, call_object, "%s"%s);
%s;
TEMPLATE
return:
.return (preamble)
.end
.sub 'sig_to_var_decls'
.param pmc sig
.local string ret_csig
$I0 = sig[0]
$P0 = 'map_from_sig_table'('c_type', $I0)
ret_csig = $P0[0]
.local int i, n
i = 1
n = elements sig
.local string params_csig
$P0 = 'map_from_sig_table'('c_type', sig :flat)
$S0 = shift $P0
by_ref_loop:
unless i < n goto end_by_ref_loop
$I0 = sig[i]
$I1 = band $I0, .DATATYPE_REF_FLAG
unless $I1 goto next
$I0 = i - 1
$S0 = $P0[$I0]
$S0 = concat $S0, '*'
$P0[$I0] = $S0
next:
inc i
goto by_ref_loop
end_by_ref_loop:
params_csig = join ', ', $P0
if params_csig goto end_default_params_csig_to_void
params_csig = 'void'
end_default_params_csig_to_void:
.local string params_tdecl
$P0 = 'map_from_sig_table'('temp_tmpl', sig :flat)
'fill_tmpls_ascending_ints'($P0, 0)
$P0 = 'grep_for_true'($P0)
params_tdecl = join ";\n ", $P0
.local string var_decls
var_decls = 'sprintf'(<<'TEMPLATE', ret_csig, params_csig, params_tdecl)
typedef %s(* func_t)(%s);
func_t fn_pointer;
void *orig_func;
PMC * const ctx = CURRENT_CONTEXT(interp);
PMC * const call_object = Parrot_pcc_get_signature(interp, ctx);
%s;
TEMPLATE
.return (var_decls)
.end
.sub 'sig_to_fn_decl'
.param pmc sig
.local string storage_class, fn_name, fn_decl
storage_class = 'read_from_opts'(.THUNK_STORAGE_CLASS)
fn_name = 'sig_to_fn_name'(sig)
fn_decl = 'sprintf'(<<'TEMPLATE', storage_class, fn_name)
%s void
%s(PARROT_INTERP, PMC *nci, SHIM(PMC *self))
TEMPLATE
.return (fn_decl)
.end
.sub 'sig_to_fn_name'
.param pmc sig
.local int i, n
$P0 = 'map_from_sig_table'('cname', sig :flat)
i = 0
n = elements sig
loop:
unless i < n goto end_loop
$I0 = sig[i]
$I1 = band $I0, .DATATYPE_REF_FLAG
unless $I1 goto next
$S0 = $P0[i]
$S0 = concat $S0, 'ref'
$P0[i] = $S0
next:
inc i
goto loop
end_loop:
$S0 = join '_', $P0
$S1 = 'read_from_opts'(.THUNK_NAME_PROTO)
$S2 = 'sprintf'($S1, $S0)
.return ($S2)
.end
.sub 'map_from_sig_table'
.param string field_name
.param pmc sig :slurpy
.local pmc sig_table
sig_table = get_global .SIG_TABLE_GLOBAL_NAME
.local int i, n
i = 0
n = elements sig
.local pmc result
result = new ['ResizableStringArray'], n
loop:
unless i < n goto end_loop
$I0 = sig[i]
$I1 = bnot .DATATYPE_REF_FLAG
$I2 = band $I0, $I1
$I1 = exists sig_table[$I2]
unless $I1 goto unsupported_type
$S1 = sig_table[$I2; field_name]
result[i] = $S1
inc i
goto loop
unsupported_type:
$P0 = null
$P0 = dlfunc $P0, "Parrot_dt_get_datatype_name", "SpI"
$P1 = getinterp
$S0 = $P0($P1, $I0)
$S0 = 'sprintf'("Unsupported nci signature type: `%s' %d", $S0, $I2)
die $S0
end_loop:
.return (result)
.end
# }}}
# read_sigs {{{
.sub 'read_sigs'
.local pmc stdin, seen, sigs
$P0 = getinterp
stdin = $P0.'stdin_handle'()
seen = new ['Hash']
seen.'set_key_type'(.Hash_key_type_PMC)
sigs = new ['ResizablePMCArray']
.local int no_warn_dups
no_warn_dups = 'read_from_opts'(.NO_WARN_DUPS)
.local int lineno
lineno = 0
read_loop:
unless stdin goto end_read_loop
.local pmc sig
sig = 'read_one_sig'(stdin)
inc lineno
# filter out empty sigs (and empty lines)
if_null sig, read_loop
# de-dup sigs
$I0 = seen[sig]
unless $I0 goto unseen
if no_warn_dups goto end_dup_warn
$S0 = get_repr sig
$S0 = 'sprintf'(<<'ERROR', $S0, lineno, $I0)
Ignored signature '%s' on line %d (previously seen on line %d)
ERROR
'warn'($S0)
end_dup_warn:
goto read_loop
unseen:
seen[sig] = lineno
push sigs, sig
goto read_loop
end_read_loop:
.return (sigs)
.end
.sub 'read_one_sig'
.param pmc fh
load_bytecode 'String/Utils.pbc'
.local pmc chomp
chomp = get_global ['String';'Utils'], 'chomp'
# init pcre
load_bytecode 'pcre.pbc'
$P0 = get_global ['PCRE'], 'init'
$P0()
.local pmc pcre_comp, pcre_match, pcre_dollar
pcre_comp = get_global ['PCRE'], 'compile'
pcre_match = get_global ['PCRE'], 'match'
pcre_dollar = get_global ['PCRE'], 'dollar'
.local pmc empty_line_regex, old_style_sig_line_regex, new_style_sig_line_regex
.local pmc old_style_sig_item_regex, new_style_sig_item_regex
.local string pcre_errstr, pcre_errint
.const int pcre_extended = 0x00000008
$S0 = "^ [[:space:]]* (?: [#] .* )? $"
(empty_line_regex, pcre_errstr, pcre_errint) = pcre_comp($S0, pcre_extended)
if pcre_errint goto pcre_comp_err
$S0 = "^ [[:space:]]* ( (?: [INSPcsilfdpvt234] [[:space:]]* )+ ) (?: [#] .* )? $"
(old_style_sig_line_regex, pcre_errstr, pcre_errint) = pcre_comp($S0, pcre_extended)
if pcre_errint goto pcre_comp_err
$S0 = ".*? ([INSPcsilfdpvt234])"
(old_style_sig_item_regex, pcre_errstr, pcre_errint) = pcre_comp($S0, pcre_extended)
if pcre_errint goto pcre_comp_err
$S0 = <<'REGEX'
^ [[:space:]]* ( [[:word:]]+ [[:space:]]* [(] [[:space:]]*
(?:
[[:word:]]+ [&]? [[:space:]]*
(?: [,] [[:space:]]* [[:word:]]+ [&]? [[:space:]]* )*
)?
[)] ) [[:space:]]* (?: [#] .* )? $
REGEX
(new_style_sig_line_regex, pcre_errstr, pcre_errint) = pcre_comp($S0, pcre_extended)
if pcre_errint goto pcre_comp_err
$S0 = ".*? ([[:word:]]+ [&]?)"
(new_style_sig_item_regex, pcre_errstr, pcre_errint) = pcre_comp($S0, pcre_extended)
if pcre_errint goto pcre_comp_err
goto match_line
pcre_comp_err:
$S0 = 'sprintf'("Error in PCRE compilation: `%Ss' (%d)", pcre_errstr, pcre_errint)
die $S0
match_line:
.local string line
line = fh.'readline'()
line = chomp(line)
.local int ok
.local pmc match
(ok, match) = pcre_match(empty_line_regex, line, 0, 0)
if ok > 0 goto return
(ok, match) = pcre_match(old_style_sig_line_regex, line, 0, 0)
if ok > 0 goto old_style_sig
(ok, match) = pcre_match(new_style_sig_line_regex, line, 0, 0)
if ok > 0 goto new_style_sig
say ok
$S0 = 'sprintf'("Invalid signature line: `%Ss'", line)
die $S0
old_style_sig:
$S0 = pcre_dollar( line, ok, match, 1 )
$P0 = 'comb'($S0, old_style_sig_item_regex)
$S0 = join '', $P0
$P1 = null
$P1 = dlfunc $P1, "Parrot_nci_parse_signature", "PpS"
$P0 = getinterp
$P3 = $P1($P0, $S0)
goto return
new_style_sig:
$S0 = pcre_dollar( line, ok, match, 1 )
$P0 = 'comb'($S0, new_style_sig_item_regex)
$P1 = null
$P1 = dlfunc $P1, "Parrot_dt_get_datatype_enum", "IpS"
$P2 = getinterp
$I0 = 0
$I1 = elements $P0
$P3 = new ['FixedIntegerArray'], $I1
get_type_enum_loop:
unless $I0 < $I1 goto end_get_type_enum_loop
$S0 = $P0[$I0]
$I2 = $P1($P2, $S0)
$P3[$I0] = $I2
inc $I0
goto get_type_enum_loop
end_get_type_enum_loop:
goto return
return: