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configure improvements
[m6w6/ext-psi] / src / context.c
1 #ifdef HAVE_CONFIG_H
2 # include "config.h"
3 #endif
4
5 #include "php.h"
6
7 #include "php_psi_stdinc.h"
8
9 #ifdef HAVE_DIRENT_H
10 # include <dirent.h>
11 # define NAMLEN(dirent) strlen ((dirent)->d_name)
12 #else
13 # define dirent direct
14 # define NAMLEN(dirent) ((dirent)->d_namlen)
15 # ifdef HAVE_SYS_NDIR_H
16 # include <sys/ndir.h>
17 # endif
18 # ifdef HAVE_SYS_DIR_H
19 # include <sys/dir.h>
20 # endif
21 # ifdef HAVE_NDIR_H
22 # include <ndir.h>
23 # endif
24 #endif
25
26 #include <sys/param.h>
27 #include <dlfcn.h>
28 #include <fnmatch.h>
29
30 #include "php.h"
31 #include "php_scandir.h"
32 #include "php_psi.h"
33
34 #include "libjit.h"
35 #include "libffi.h"
36
37 static struct psi_std_type {
38 token_t type_tag;
39 const char *type_name;
40 } psi_std_types[] = {
41 {PSI_T_FLOAT, "float"},
42 {PSI_T_DOUBLE, "double"},
43 {PSI_T_INT8, "int8_t"},
44 {PSI_T_INT16, "int16_t"},
45 {PSI_T_INT32, "int32_t"},
46 {PSI_T_INT64, "int64_t"},
47 {PSI_T_UINT8, "uint8_t"},
48 {PSI_T_UINT16, "uint16_t"},
49 {PSI_T_UINT32, "uint32_t"},
50 {PSI_T_UINT64, "uint64_t"},
51 {0}
52 };
53
54 #include "php_psi_types.h"
55 #include "php_psi_consts.h"
56 #include "php_psi_macros.h"
57 #include "php_psi_redirs.h"
58 #include "php_psi_decls.h"
59 #include "php_psi_va_decls.h"
60 #include "php_psi_structs.h"
61
62 static int validate_lib(PSI_Data *data, void **dlopened) {
63 char lib[MAXPATHLEN];
64 const char *ptr = data->psi.file.ln;
65 size_t len;
66
67 if (!ptr) {
68 /* FIXME: assume stdlib */
69 return 1;
70 } else if (!strchr(ptr, '/')) {
71 len = snprintf(lib, MAXPATHLEN, "lib%s.%s", ptr, PHP_PSI_SHLIB_SUFFIX);
72 if (MAXPATHLEN == len) {
73 data->error(NULL, PSI_WARNING, "Library name too long: '%s'", ptr);
74 }
75 lib[len] = 0;
76 ptr = lib;
77 }
78 if (!(*dlopened = dlopen(ptr, RTLD_LAZY|RTLD_LOCAL))) {
79 data->error(NULL, PSI_WARNING, "Could not open library '%s': %s.",
80 data->psi.file.ln, dlerror());
81 return 0;
82 }
83 return 1;
84 }
85
86 static inline int locate_decl_type_alias(decl_typedefs *defs, decl_type *type) {
87 size_t i;
88 struct psi_std_type *stdtyp;
89
90 if (type->real) {
91 return 1;
92 }
93 for (i = 0; i < defs->count; ++i) {
94 decl_typedef *def = defs->list[i];
95
96 if (def->type->type != type->type && !strcmp(def->alias, type->name)) {
97 type->real = def->type;
98 return 1;
99 }
100 }
101 for (stdtyp = &psi_std_types[0]; stdtyp->type_tag; ++stdtyp) {
102 if (!strcmp(type->name, stdtyp->type_name)) {
103 type->type = stdtyp->type_tag;
104 return 1;
105 }
106 }
107
108 return 0;
109 }
110 static inline int locate_decl_type_struct(decl_structs *structs, decl_type *type) {
111 size_t i;
112
113 if (type->strct) {
114 return 1;
115 }
116 for (i = 0; i < structs->count; ++i) {
117 if (!strcmp(structs->list[i]->name, type->name)) {
118 type->strct = structs->list[i];
119 return 1;
120 }
121 }
122 return 0;
123 }
124
125 static inline int validate_decl_type(PSI_Data *data, decl_type *type) {
126 switch (type->type) {
127 case PSI_T_NAME:
128 if (!data->defs || !locate_decl_type_alias(data->defs, type)) {
129 return 0;
130 }
131 if (type->real) {
132 return validate_decl_type(data, type->real);
133 }
134 return 1;
135 case PSI_T_STRUCT:
136 if (!data->structs || !locate_decl_type_struct(data->structs, type)) {
137 return 0;
138 }
139 break;
140 }
141 return 1;
142 }
143 static inline int validate_decl_typedef(PSI_Data *data, decl_typedef *def) {
144 if (!validate_decl_type(data, def->type)) {
145 data->error(def->token, PSI_WARNING,
146 "Type '%s' cannot be aliased to %s'%s'",
147 def->type->name, def->type->type == PSI_T_STRUCT?"struct ":"",def->alias);
148 return 0;
149 }
150 /* FIXME: check def->alias */
151 return 1;
152 }
153
154 static inline int validate_constant(PSI_Data *data, constant *c) {
155 /* FIXME */
156 return 1;
157 }
158
159 static inline int validate_decl_arg(PSI_Data *data, decl_arg *arg) {
160 if (!validate_decl_type(data, arg->type)) {
161 data->error(arg->type->token, PSI_WARNING,
162 "Cannot use '%s'(%d) as type for decl var '%s'",
163 arg->type->name, arg->type->type, arg->var->name);
164 return 0;
165 }
166 return 1;
167 }
168
169 static inline int validate_decl_struct(PSI_Data *data, decl_struct *s) {
170 size_t i;
171
172 for (i = 0; i < s->args->count; ++i) {
173 if (!validate_decl_arg(data, s->args->args[i])) {
174 return 0;
175 }
176 }
177
178 for (i = 0; i < s->args->count; ++i) {
179 decl_arg *darg = s->args->args[i];
180
181 if (!validate_decl_arg(data, darg)) {
182 return 0;
183 }
184
185 ZEND_ASSERT(!darg->var->arg || darg->var->arg == darg);
186 darg->var->arg = darg;
187
188 if (!darg->layout) {
189 token_t t;
190
191 if (darg->var->pointer_level && (!darg->var->array_size || darg->var->pointer_level == 1)) {
192 t = PSI_T_POINTER;
193 } else {
194 t = real_decl_type(darg->type)->type;
195 }
196
197 if (i) {
198 decl_arg *last = s->args->args[i-1];
199 darg->layout = init_decl_struct_layout(
200 psi_t_align(t, last->layout->pos + last->layout->len),
201 psi_t_size(t) * darg->var->array_size);
202 } else {
203 darg->layout = init_decl_struct_layout(0, psi_t_size(t));
204 }
205 }
206 if (s->size < darg->layout->pos + darg->layout->len) {
207 s->size = darg->layout->pos + darg->layout->len;
208 }
209 }
210 return 1;
211 }
212
213 static const char * const abi_ccs[] = {
214 "default", /* \ */
215 "extern", /* > - all the same */
216 "cdecl", /* / */
217 "mscdecl",
218 "stdcall",
219 "fastcall",
220 };
221 static inline int validate_decl_abi(PSI_Data *data, decl_abi *abi) {
222 size_t i;
223
224 for (i = 0; i < sizeof(abi_ccs)/sizeof(char*); ++i) {
225 if (strcasecmp(abi->convention, abi_ccs[i])) {
226 return 1;
227 }
228 }
229 return 0;
230 }
231 static inline int validate_decl_func(PSI_Data *data, void *dl, decl *decl, decl_arg *func)
232 {
233 struct psi_func_redir *redir;
234
235 if (!strcmp(func->var->name, "dlsym")) {
236 data->error(func->token, PSI_WARNING, "Cannot dlsym dlsym (sic!)");
237 return 0;
238 }
239
240 if (!validate_decl_arg(data, func)) {
241 return 0;
242 }
243 for (redir = &psi_func_redirs[0]; redir->name; ++redir) {
244 if (!strcmp(func->var->name, redir->name)) {
245 decl->call.sym = redir->func;
246 }
247 }
248 if (!decl->call.sym) {
249 #ifndef RTLD_NEXT
250 # define RTLD_NEXT ((void *) -1l)
251 #endif
252 decl->call.sym = dlsym(dl ?: RTLD_NEXT, func->var->name);
253 if (!decl->call.sym) {
254 data->error(func->token, PSI_WARNING,
255 "Failed to locate symbol '%s': %s",
256 func->var->name, dlerror());
257 }
258 }
259 return 1;
260 }
261
262 static inline int validate_decl(PSI_Data *data, void *dl, decl *decl) {
263 if (!validate_decl_abi(data, decl->abi)) {
264 data->error(decl->abi->token, PSI_WARNING,
265 "Invalid calling convention: '%s'", decl->abi->token->text);
266 return 0;
267 }
268 if (!validate_decl_func(data, dl, decl, decl->func)) {
269 return 0;
270 }
271 if (decl->args) {
272 size_t i;
273
274 for (i = 0; i < decl->args->count; ++i) {
275 if (!validate_decl_arg(data, decl->args->args[i])) {
276 return 0;
277 }
278 }
279 }
280 return 1;
281 }
282 static inline decl_arg *locate_decl_var_arg(decl_var *var, decl_args *args, decl_arg *func) {
283 size_t i;
284
285 for (i = 0; i < args->count; ++i) {
286 decl_arg *arg = args->args[i];
287
288 if (!strcmp(var->name, arg->var->name)) {
289 ZEND_ASSERT(!var->arg || var->arg == arg);
290 return var->arg = arg;
291 }
292 }
293 if (func && !strcmp(var->name, func->var->name)) {
294 return var->arg = func;
295 }
296
297 return NULL;
298 }
299 static inline decl_arg *locate_struct_member(decl_struct *s, decl_var *var) {
300 if (s->args) {
301 return locate_decl_var_arg(var, s->args, NULL);
302 }
303
304 return NULL;
305 }
306 static inline constant *locate_num_exp_constant(num_exp *exp, constants *consts) {
307 size_t i;
308
309 for (i = 0; i < consts->count; ++i) {
310 constant *cnst = consts->list[i];
311
312 if (!strcmp(cnst->name, exp->u.numb)) {
313 free(exp->u.numb);
314 return exp->u.cnst = cnst;
315 }
316 }
317
318 return NULL;
319 }
320 static inline int validate_num_exp(PSI_Data *data, decl_args *dargs, decl_arg *func, num_exp *exp) {
321 if (exp->operand) {
322 switch (exp->operator) {
323 case PSI_T_PLUS:
324 exp->calculator = psi_calc_add;
325 break;
326 case PSI_T_MINUS:
327 exp->calculator = psi_calc_sub;
328 break;
329 case PSI_T_ASTERISK:
330 exp->calculator = psi_calc_mul;
331 break;
332 case PSI_T_SLASH:
333 exp->calculator = psi_calc_div;
334 break;
335 EMPTY_SWITCH_DEFAULT_CASE();
336 }
337 if (!validate_num_exp(data, dargs, func, exp->operand)) {
338 return 0;
339 }
340 }
341 switch (exp->t) {
342 case PSI_T_NAME:
343 if (!locate_decl_var_arg(exp->u.dvar, dargs, func)) {
344 data->error(exp->token, PSI_WARNING, "Unknown variable '%s' in numeric expression",
345 exp->u.dvar->name);
346 return 0;
347 }
348 return 1;
349 case PSI_T_NSNAME:
350 if (!locate_num_exp_constant(exp, data->consts)) {
351 data->error(exp->token, PSI_WARNING, "Unknown constant '%s' in numeric expression",
352 exp->u.numb);
353 return 0;
354 }
355 return 1;
356 case PSI_T_NUMBER:
357 return 1;
358 default:
359 return 0;
360 }
361 }
362 static inline int validate_set_value_handler(set_value *set) {
363 switch (set->func->type) {
364 case PSI_T_TO_BOOL:
365 set->func->handler = psi_to_bool;
366 break;
367 case PSI_T_TO_INT:
368 set->func->handler = psi_to_int;
369 break;
370 case PSI_T_TO_FLOAT:
371 set->func->handler = psi_to_double;
372 break;
373 case PSI_T_TO_STRING:
374 set->func->handler = psi_to_string;
375 break;
376 case PSI_T_TO_ARRAY:
377 set->func->handler = psi_to_array;
378 break;
379 case PSI_T_TO_OBJECT:
380 set->func->handler = psi_to_object;
381 break;
382 case PSI_T_VOID:
383 set->func->handler = psi_to_void;
384 break;
385 case PSI_T_ELLIPSIS:
386 if (set->outer.set && set->outer.set->func->type == PSI_T_TO_ARRAY) {
387 set->func->handler = psi_to_recursive;
388 set->inner = set->outer.set->inner;
389 set->count = set->outer.set->count;
390 break;
391 }
392 /* no break */
393 default:
394 return 0;
395 }
396 return 1;
397 }
398 static inline void decl_var_arg_v(decl_args *args, va_list argp) {
399 int argc;
400 decl_arg **argv;
401
402 memset(args, 0, sizeof(*args));
403
404 while ((argc = va_arg(argp, int))) {
405 argv = va_arg(argp, decl_arg **);
406 while (argc--) {
407 add_decl_arg(args, *argv++);
408 }
409 }
410 }
411 static inline int validate_set_value_ex(PSI_Data *data, set_value *set, decl_arg *ref, decl_args *ref_list) {
412 size_t i;
413 decl_type *ref_type;
414 decl_var *set_var = set->vars->vars[0];
415
416 if (!validate_set_value_handler(set)) {
417 data->error(set->func->token, PSI_WARNING, "Invalid cast '%s' in `set` statement", set->func->name);
418 return 0;
419 }
420
421 for (i = 0; i < set->vars->count; ++i) {
422 decl_var *svar = set->vars->vars[i];
423 if (!svar->arg && !locate_decl_var_arg(svar, ref_list, NULL)) {
424 data->error(svar->token, PSI_WARNING, "Unknown variable '%s' in `set` statement", svar->name);
425 return 0;
426 }
427 }
428
429 if (!ref) {
430 ref = set_var->arg;
431 }
432 ref_type = real_decl_type(ref->type);
433
434 if (set->count) {
435 int is_to_array = (set->func->type == PSI_T_TO_ARRAY);
436 int is_pointer_to_struct = (ref_type->type == PSI_T_STRUCT && ref->var->pointer_level);
437
438 if (!is_to_array && !is_pointer_to_struct) {
439 data->error(set->func->token, E_WARNING, "Inner `set` statement casts only work with "
440 "to_array() casts on structs or pointers: %s(%s...", set->func->name, set->vars->vars[0]->name);
441 return 0;
442 }
443 }
444 if (set->num) {
445 if (!validate_num_exp(data, ref_list, ref, set->num)) {
446 return 0;
447 }
448 }
449
450 if (ref_type->type == PSI_T_STRUCT) {
451 /* to_array(struct, to_...) */
452 if (!set->outer.set || set->outer.set->inner != set->inner) {
453 for (i = 0; i < set->count; ++i) {
454 decl_var *sub_var = set->inner[i]->vars->vars[0];
455 decl_arg *sub_ref = locate_struct_member(ref_type->strct, sub_var);
456
457 if (sub_ref) {
458 if (!validate_set_value_ex(data, set->inner[i], sub_ref, ref_type->strct->args)) {
459 return 0;
460 }
461 }
462 }
463 }
464 } else if (set->count == 1) {
465 /* to_array(ptr, to_string(*ptr)) */
466 decl_var *sub_var = set->inner[0]->vars->vars[0];
467 decl_arg *sub_ref = locate_decl_var_arg(sub_var, ref_list, ref);
468
469 if (sub_ref) {
470 if (strcmp(sub_var->name, set_var->name)) {
471 data->error(sub_var->token, E_WARNING, "Inner `set` statement casts on pointers must reference the same variable");
472 return 0;
473 }
474 if (!validate_set_value_ex(data, set->inner[0], sub_ref, ref_list)) {
475 return 0;
476 }
477 }
478 } else if (set->count > 1) {
479 data->error(set->func->token, E_WARNING, "Inner `set` statement casts on pointers may only occur once");
480 return 0;
481 }
482
483 return 1;
484 }
485 static inline int validate_set_value(PSI_Data *data, set_value *set, ...) {
486 va_list argp;
487 decl_args args = {0};
488 int check;
489
490 va_start(argp, set);
491 decl_var_arg_v(&args, argp);
492 va_end(argp);
493
494 check = validate_set_value_ex(data, set, NULL, &args);
495 if (args.args) {
496 free(args.args);
497 }
498 return check;
499 }
500 static inline decl *locate_impl_decl(decls *decls, return_stmt *ret) {
501 if (decls) {
502 size_t i;
503
504 for (i = 0; i < decls->count; ++i) {
505 if (!strcmp(decls->list[i]->func->var->name, ret->set->vars->vars[0]->name)) {
506 ret->decl = decls->list[i]->func;
507 return decls->list[i];
508 }
509 }
510 }
511
512 return NULL;
513 }
514 static inline int validate_impl_ret_stmt(PSI_Data *data, impl *impl) {
515 return_stmt *ret;
516
517 /* we must have exactly one ret stmt delcaring the native func to call */
518 /* and which type cast to apply */
519 if (impl->stmts->ret.count != 1) {
520 if (impl->stmts->ret.count > 1) {
521 data->error(impl->stmts->ret.list[1]->token, PSI_WARNING,
522 "Too many `return` statements for implmentation %s;"
523 " found %zu, exactly one is needed",
524 impl->func->name, impl->stmts->ret.count);
525 } else {
526 data->error(impl->func->token, PSI_WARNING,
527 "Missing `return` statement for implementation %s",
528 impl->func->name);
529 }
530 return 0;
531 }
532
533 ret = impl->stmts->ret.list[0];
534
535 if (!(impl->decl = locate_impl_decl(data->decls, ret))) {
536 data->error(ret->token, PSI_WARNING,
537 "Missing declaration '%s' for `return` statment for implementation %s",
538 ret->set->vars->vars[0]->name, impl->func->name);
539 return 0;
540 }
541
542 if (!validate_set_value(data, ret->set, 1, &ret->decl, impl->decl->args ? (int) impl->decl->args->count : 0, impl->decl->args ? impl->decl->args->args : NULL, 0)) {
543 return 0;
544 }
545
546 impl->decl->impl = impl;
547
548 return 1;
549 }
550
551 static inline int validate_impl_let_stmts(PSI_Data *data, impl *impl) {
552 size_t i, j;
553 /* we can have multiple let stmts */
554
555 /* check that we have a decl arg for every let stmt */
556 for (i = 0; i < impl->stmts->let.count; ++i) {
557 let_stmt *let = impl->stmts->let.list[i];
558 decl_var *let_var;
559 int check = 0;
560
561 if (let->val && let->val->kind == PSI_LET_TMP) {
562 let_var = let->val->data.var;
563 } else {
564 let_var = let->var;
565 }
566
567 if (!locate_decl_var_arg(let_var, impl->decl->args, impl->decl->func)) {
568 data->error(let_var->token, PSI_WARNING, "Unknown variable '%s' in `let` statement"
569 " of implementation '%s'", let_var->name, impl->func->name);
570 return 0;
571 }
572
573 switch (let->val->kind) {
574 case PSI_LET_NULL:
575 break;
576 case PSI_LET_TMP:
577 /* e.g. let bar = &strval($bar); // decl_arg(char **bar) */
578 /* e.g. let foo = *bar; */
579 let->var->pointer_level = let->val->data.var->pointer_level;
580 let->var->arg = init_decl_arg(
581 init_decl_type(
582 real_decl_type(let->val->data.var->arg->type)->type,
583 real_decl_type(let->val->data.var->arg->type)->name),
584 init_decl_var(
585 let->var->name,
586 let->var->pointer_level,
587 let->var->array_size));
588 break;
589 case PSI_LET_NUMEXP:
590 if (!validate_num_exp(data, impl->decl->args, impl->decl->func, let->val->data.num)) {
591 return 0;
592 }
593 break;
594 case PSI_LET_CALLOC:
595 if (!validate_num_exp(data, impl->decl->args, impl->decl->func, let->val->data.alloc->nmemb)) {
596 return 0;
597 }
598 if (!validate_num_exp(data, impl->decl->args, impl->decl->func, let->val->data.alloc->size)) {
599 return 0;
600 }
601 break;
602 case PSI_LET_FUNC:
603 if (impl->func->args) {
604 for (j = 0; j < impl->func->args->count; ++j) {
605 impl_arg *iarg = impl->func->args->args[j];
606
607 if (!strcmp(let->val->data.func->var->name, iarg->var->name)) {
608 let->val->data.func->arg = iarg;
609 check = 1;
610 break;
611 }
612 }
613 }
614 if (!check) {
615 data->error(let->var->token, PSI_WARNING, "Unknown value '$%s' of `let` statement"
616 " for variable '%s' of implementation '%s'",
617 let->val->data.func->var->name, let->var->name, impl->func->name);
618 return 0;
619 }
620 break;
621 }
622 }
623
624 /* check that we have a let stmt for every decl arg */
625 if (impl->decl->args) for (i = 0; i < impl->decl->args->count; ++i) {
626 decl_arg *darg = impl->decl->args->args[i];
627 int check = 0;
628
629 for (j = 0; j < impl->stmts->let.count; ++j) {
630 let_stmt *let = impl->stmts->let.list[j];
631
632 if (!strcmp(let->var->name, darg->var->name)) {
633 darg->let = let;
634 check = 1;
635 break;
636 }
637 }
638 if (!check) {
639 data->error(impl->func->token, PSI_WARNING,
640 "Missing `let` statement for arg '%s %.*s%s'"
641 " of declaration '%s' for implementation '%s'",
642 darg->type->name, (int) darg->var->pointer_level, "*****",
643 darg->var->name, impl->decl->func->var->name, impl->func->name);
644 return 0;
645 }
646 }
647
648 return 1;
649 }
650 static inline int validate_impl_set_stmts(PSI_Data *data, impl *impl) {
651 size_t i, j, k;
652 /* we can have any count of set stmts; processing out vars */
653 /* check that set stmts reference known variables */
654 for (i = 0; i < impl->stmts->set.count; ++i) {
655 set_stmt *set = impl->stmts->set.list[i];
656 int check = 0;
657
658 if (impl->func->args) for (j = 0; j < impl->func->args->count; ++j) {
659 impl_arg *iarg = impl->func->args->args[j];
660
661 if (!strcmp(set->var->name, iarg->var->name)) {
662 set->arg = iarg;
663 check = 1;
664 break;
665 }
666 }
667 if (!check) {
668 data->error(set->var->token, PSI_WARNING, "Unknown variable '$%s' of `set` statement"
669 " of implementation '%s'",
670 set->var->name, impl->func->name);
671 return 0;
672 }
673
674 for (j = 0; j < set->val->vars->count; ++j) {
675 decl_var *set_var = set->val->vars->vars[j];
676
677 check = 0;
678 if (impl->decl->args) {
679 for (k = 0; k < impl->decl->args->count; ++k) {
680 decl_arg *set_arg = impl->decl->args->args[k];
681
682 if (!strcmp(set_var->name, set_arg->var->name)) {
683 check = 1;
684 set_var->arg = set_arg;
685 if (!validate_set_value(data, set->val, 1, &set_arg, 1, &impl->decl->func, impl->decl->args->count, impl->decl->args->args, 0)) {
686 return 0;
687 }
688 break;
689 }
690 }
691 }
692 if (!check) {
693 for (k = 0; k < impl->stmts->let.count; ++k) {
694 let_stmt *let = impl->stmts->let.list[k];
695
696 /* check temp vars */
697 if (let->val && let->val->kind == PSI_LET_TMP) {
698 if (!strcmp(set_var->name, let->var->name)) {
699 check = 1;
700 set_var->arg = let->var->arg;
701 if (!validate_set_value(data, set->val, 1, &set_var->arg, 1, &impl->decl->func, impl->decl->args->count, impl->decl->args->args, 0)) {
702 return 0;
703 }
704 break;
705 }
706 }
707 }
708 }
709
710 if (!check) {
711 data->error(set_var->token, PSI_WARNING, "Unknown value '%s' of `set` statement"
712 " for variable '$%s' of implementation '%s'",
713 set_var->name, set->arg->var->name, impl->func->name);
714 return 0;
715 }
716 }
717 }
718 return 1;
719 }
720 static inline decl *locate_free_decl(decls *decls, free_call *f) {
721 if (decls) {
722 size_t i;
723
724 for (i = 0; i < decls->count; ++i) {
725 if (!strcmp(decls->list[i]->func->var->name, f->func)) {
726 f->decl = decls->list[i];
727 return decls->list[i];
728 }
729 }
730 }
731
732 return NULL;
733 }
734 static inline int validate_impl_free_stmts(PSI_Data *data, impl *impl) {
735 size_t i, j, k, l;
736 /* we can have any count of free stmts; freeing any out vars */
737 for (i = 0; i < impl->stmts->fre.count; ++i) {
738 free_stmt *fre = impl->stmts->fre.list[i];
739
740 for (j = 0; j < fre->calls->count; ++j) {
741 free_call *free_call = fre->calls->list[j];
742
743 /* first find the decl of the free func */
744 if (!locate_free_decl(data->decls, free_call)) {
745 data->error(free_call->token, PSI_WARNING,
746 "Missing declaration '%s' in `free` statement"
747 " of implementation '%s'",
748 free_call->func, impl->func->name);
749 return 0;
750 }
751
752
753
754 /* now check for known vars */
755 for (l = 0; l < free_call->vars->count; ++l) {
756 int check = 0;
757 decl_var *free_var = free_call->vars->vars[l];
758
759 if (!strcmp(free_var->name, impl->decl->func->var->name)) {
760 check = 1;
761 free_var->arg = impl->decl->func;
762 } else if (impl->decl->args) {
763 for (k = 0; k < impl->decl->args->count; ++k) {
764 decl_arg *free_arg = impl->decl->args->args[k];
765
766 if (!strcmp(free_var->name, free_arg->var->name)) {
767 check = 1;
768 free_var->arg = free_arg;
769 break;
770 }
771 }
772 }
773
774 if (!check) {
775 data->error(free_var->token, PSI_WARNING,
776 "Unknown variable '%s' of `free` statement"
777 " of implementation '%s'",
778 free_var->name, impl->func->name);
779 return 0;
780 }
781 }
782 }
783 }
784 return 1;
785 }
786 static inline int validate_impl_stmts(PSI_Data *data, impl *impl) {
787 if (!impl->stmts) {
788 data->error(impl->func->token, PSI_WARNING,
789 "Missing body for implementation %s!",
790 impl->func->name);
791 return 0;
792 }
793
794 if (!validate_impl_ret_stmt(data, impl)) {
795 return 0;
796 }
797
798 if (!validate_impl_let_stmts(data, impl)) {
799 return 0;
800 }
801 if (!validate_impl_set_stmts(data, impl)) {
802 return 0;
803 }
804 if (!validate_impl_free_stmts(data, impl)) {
805 return 0;
806 }
807
808 return 1;
809 }
810
811 static inline int validate_impl_args(PSI_Data *data, impl *impl) {
812 int def = 0;
813 size_t i;
814
815 for (i = 0; i < impl->func->args->count; ++i) {
816 impl_arg *iarg = impl->func->args->args[i];
817
818 if (iarg->def) {
819 def = 1;
820 } else if (def) {
821 data->error(impl->func->token, PSI_WARNING,
822 "Non-optional argument %zu '$%s' of implementation '%s'"
823 " follows optional argument",
824 i+1, iarg->var->name, impl->func->name);
825 return 0;
826 }
827 }
828
829 return 1;
830 }
831 static inline int validate_impl(PSI_Data *data, impl *impl) {
832 if (!validate_impl_args(data, impl)) {
833 return 0;
834 }
835 return validate_impl_stmts(data, impl);
836 }
837
838 PSI_Context *PSI_ContextInit(PSI_Context *C, PSI_ContextOps *ops, PSI_ContextErrorFunc error)
839 {
840 size_t i;
841 PSI_Data T;
842 struct psi_predef_type *predef_type;
843 struct psi_predef_const *predef_const;
844 struct psi_predef_struct *predef_struct;
845 struct psi_predef_decl *predef_decl;
846
847 if (!C) {
848 C = malloc(sizeof(*C));
849 }
850 memset(C, 0, sizeof(*C));
851
852 C->error = error;
853 C->ops = ops;
854
855 if (ops->init) {
856 ops->init(C);
857 }
858
859 ZEND_ASSERT(ops->call != NULL);
860 ZEND_ASSERT(ops->compile != NULL);
861
862 /* build up predefs in a temporary PSI_Data for validation */
863 memset(&T, 0, sizeof(T));
864 T.error = error;
865
866 for (predef_type = &psi_predef_types[0]; predef_type->type_tag; ++predef_type) {
867 decl_type *type = init_decl_type(predef_type->type_tag, predef_type->type_name);
868 decl_typedef *def = init_decl_typedef(predef_type->alias, type);
869
870 T.defs = add_decl_typedef(T.defs, def);
871 }
872 for (predef_const = &psi_predef_consts[0]; predef_const->type_tag; ++predef_const) {
873 impl_def_val *val = init_impl_def_val(predef_const->val_type_tag, predef_const->val_text);
874 const_type *type = init_const_type(predef_const->type_tag, predef_const->type_name);
875 constant *constant = init_constant(type, predef_const->var_name, val);
876
877 T.consts = add_constant(T.consts, constant);
878 }
879 for (predef_struct = &psi_predef_structs[0]; predef_struct->type_tag; ++predef_struct) {
880 struct psi_predef_struct *member;
881 decl_args *dargs = init_decl_args(NULL);
882 decl_struct *dstruct = init_decl_struct(predef_struct->var_name, dargs);
883
884 dstruct->size = predef_struct->size;
885 for (member = &predef_struct[1]; member->type_tag; ++member) {
886 decl_type *type;
887 decl_var *dvar;
888 decl_arg *darg;
889
890 type = init_decl_type(member->type_tag, member->type_name);
891 dvar = init_decl_var(member->var_name, member->pointer_level, member->array_size);
892 darg = init_decl_arg(type, dvar);
893 darg->layout = init_decl_struct_layout(member->offset, member->size);
894 dargs = add_decl_arg(dargs, darg);
895 }
896
897 T.structs = add_decl_struct(T.structs, dstruct);
898 predef_struct = member;
899 }
900 for (predef_decl = &psi_predef_decls[0]; predef_decl->type_tag; ++predef_decl) {
901 struct psi_predef_decl *farg;
902 decl_type *ftype = init_decl_type(predef_decl->type_tag, predef_decl->type_name);
903 decl_var *fname = init_decl_var(predef_decl->var_name, predef_decl->pointer_level, predef_decl->array_size);
904 decl_arg *func = init_decl_arg(ftype, fname);
905 decl_args *args = init_decl_args(NULL);
906 decl *decl = init_decl(init_decl_abi("default"), func, args);
907
908 for (farg = &predef_decl[1]; farg->type_tag; ++farg) {
909 decl_type *arg_type = init_decl_type(farg->type_tag, farg->type_name);
910 decl_var *arg_var = init_decl_var(farg->var_name, farg->pointer_level, farg->array_size);
911 decl_arg *darg = init_decl_arg(arg_type, arg_var);
912 args = add_decl_arg(args, darg);
913 }
914
915 T.decls = add_decl(T.decls, decl);
916 predef_decl = farg;
917 }
918
919 for (predef_decl = &psi_predef_vararg_decls[0]; predef_decl->type_tag; ++predef_decl) {
920 struct psi_predef_decl *farg;
921 decl_type *ftype = init_decl_type(predef_decl->type_tag, predef_decl->type_name);
922 decl_var *fname = init_decl_var(predef_decl->var_name, predef_decl->pointer_level, predef_decl->array_size);
923 decl_arg *func = init_decl_arg(ftype, fname);
924 decl_args *args = init_decl_args(NULL);
925 decl *decl = init_decl(init_decl_abi("default"), func, args);
926
927 for (farg = &predef_decl[1]; farg->type_tag; ++farg) {
928 decl_type *arg_type = init_decl_type(farg->type_tag, farg->type_name);
929 decl_var *arg_var = init_decl_var(farg->var_name, farg->pointer_level, farg->array_size);
930 decl_arg *darg = init_decl_arg(arg_type, arg_var);
931 args = add_decl_arg(args, darg);
932 }
933 args->varargs = 1;
934
935 T.decls = add_decl(T.decls, decl);
936 predef_decl = farg;
937 }
938
939 for (i = 0; i < T.defs->count; ++i) {
940 decl_typedef *def = T.defs->list[i];
941
942 if (validate_decl_typedef(&T, def)) {
943 C->defs = add_decl_typedef(C->defs, def);
944 }
945 }
946
947 for (i = 0; i < T.consts->count; ++i) {
948 constant *constant = T.consts->list[i];
949
950 if (validate_constant(&T, constant)) {
951 C->consts = add_constant(C->consts, constant);
952 }
953 }
954
955 for (i = 0; i < T.structs->count; ++i) {
956 decl_struct *dstruct = T.structs->list[i];
957
958 if (validate_decl_struct(&T, dstruct)) {
959 C->structs = add_decl_struct(C->structs, dstruct);
960 }
961 }
962
963 for (i = 0; i < T.decls->count; ++i) {
964 decl *decl = T.decls->list[i];
965
966 if (validate_decl(&T, NULL, decl)) {
967 C->decls = add_decl(C->decls, decl);
968 }
969 }
970
971 C->count = 1;
972 C->data = malloc(sizeof(*C->data));
973 PSI_DataExchange(C->data, &T);
974
975 return C;
976 }
977
978 int PSI_ContextValidate(PSI_Context *C, PSI_Parser *P)
979 {
980 PSI_Data *D;
981 void *dlopened = NULL;
982 size_t count = C->count++;
983
984 C->data = realloc(C->data, C->count * sizeof(*C->data));
985 D = PSI_DataExchange(&C->data[count], PSI_DATA(P));
986
987 if (D->defs) {
988 size_t i;
989
990 for (i = 0; i < D->defs->count; ++i) {
991 if (validate_decl_typedef(PSI_DATA(C), D->defs->list[i])) {
992 C->defs = add_decl_typedef(C->defs, D->defs->list[i]);
993 }
994 }
995 }
996 if (D->structs) {
997 size_t i;
998
999 for (i = 0; i < D->structs->count; ++i) {
1000 if (validate_decl_struct(PSI_DATA(C), D->structs->list[i])) {
1001 C->structs = add_decl_struct(C->structs, D->structs->list[i]);
1002 }
1003 }
1004 }
1005 if (D->consts) {
1006 size_t i;
1007
1008 for (i = 0; i < D->consts->count; ++i) {
1009 if (validate_constant(PSI_DATA(C), D->consts->list[i])) {
1010 C->consts = add_constant(C->consts, D->consts->list[i]);
1011 }
1012 }
1013 }
1014
1015 if (!validate_lib(D, &dlopened)) {
1016 return 0;
1017 }
1018
1019 add_decl_lib(&C->psi.libs, dlopened);
1020
1021 if (D->decls) {
1022 size_t i;
1023
1024 for (i = 0; i < D->decls->count; ++i) {
1025 if (validate_decl(PSI_DATA(C), dlopened, D->decls->list[i])) {
1026 C->decls = add_decl(C->decls, D->decls->list[i]);
1027 }
1028 }
1029 }
1030 if (D->impls) {
1031 size_t i;
1032
1033 for (i = 0; i < D->impls->count; ++i) {
1034 if (validate_impl(PSI_DATA(C), D->impls->list[i])) {
1035 C->impls = add_impl(C->impls, D->impls->list[i]);
1036 }
1037 }
1038 }
1039
1040 return 1;
1041 }
1042
1043 static int psi_select_dirent(const struct dirent *entry)
1044 {
1045 #ifndef FNM_CASEFOLD
1046 #define FNM_CASEFOLD 0
1047 #endif
1048 return 0 == fnmatch("*.psi", entry->d_name, FNM_CASEFOLD);
1049 }
1050
1051 void PSI_ContextBuild(PSI_Context *C, const char *paths)
1052 {
1053 int i, n, flags = psi_check_env("PSI_DEBUG") ? PSI_PARSER_DEBUG : 0;
1054 char *sep = NULL, *cpy = strdup(paths), *ptr = cpy;
1055 struct dirent **entries = NULL;
1056
1057
1058 do {
1059 sep = strchr(ptr, ':');
1060
1061 if (sep) {
1062 *sep = 0;
1063 }
1064
1065 n = php_scandir(ptr, &entries, psi_select_dirent, alphasort);
1066
1067 if (n > 0) {
1068 for (i = 0; i < n; ++i) {
1069 char psi[MAXPATHLEN];
1070 PSI_Parser P;
1071
1072 if (MAXPATHLEN <= slprintf(psi, MAXPATHLEN, "%s/%s", ptr, entries[i]->d_name)) {
1073 C->error(NULL, PSI_WARNING, "Path to PSI file too long: %s/%s",
1074 ptr, entries[i]->d_name);
1075 }
1076 if (!PSI_ParserInit(&P, psi, C->error, flags)) {
1077 C->error(NULL, PSI_WARNING, "Failed to init PSI parser (%s): %s",
1078 psi, strerror(errno));
1079 continue;
1080 }
1081
1082 while (0 < PSI_ParserScan(&P)) {
1083 PSI_ParserParse(&P, PSI_TokenAlloc(&P));
1084 if (P.num == PSI_T_EOF) {
1085 break;
1086 }
1087 }
1088
1089 PSI_ParserParse(&P, NULL);
1090 PSI_ContextValidate(C, &P);
1091 PSI_ParserDtor(&P);
1092 }
1093 }
1094
1095 if (entries) {
1096 for (i = 0; i < n; ++i) {
1097 free(entries[i]);
1098 }
1099 free(entries);
1100 }
1101
1102 ptr = sep + 1;
1103 } while (sep);
1104
1105
1106 if (PSI_ContextCompile(C) && SUCCESS != zend_register_functions(NULL, C->closures, NULL, MODULE_PERSISTENT)) {
1107 C->error(NULL, PSI_WARNING, "Failed to register functions!");
1108 }
1109
1110 free(cpy);
1111
1112 }
1113
1114 zend_function_entry *PSI_ContextCompile(PSI_Context *C)
1115 {
1116 size_t i;
1117
1118 if (C->consts) {
1119 zend_constant zc;
1120
1121 zc.flags = CONST_PERSISTENT|CONST_CS;
1122 zc.module_number = EG(current_module)->module_number;
1123
1124 for (i = 0; i < C->consts->count; ++i) {
1125 constant *c = C->consts->list[i];
1126
1127 zc.name = zend_string_init(c->name + (c->name[0] == '\\'), strlen(c->name) - (c->name[0] == '\\'), 1);
1128 ZVAL_NEW_STR(&zc.value, zend_string_init(c->val->text, strlen(c->val->text), 1));
1129
1130 switch (c->type->type) {
1131 case PSI_T_BOOL:
1132 convert_to_boolean(&zc.value);
1133 break;
1134 case PSI_T_INT:
1135 convert_to_long(&zc.value);
1136 break;
1137 case PSI_T_FLOAT:
1138 convert_to_double(&zc.value);
1139 break;
1140 }
1141 zend_register_constant(&zc);
1142 }
1143 }
1144
1145 return C->closures = C->ops->compile(C);
1146 }
1147
1148
1149 void PSI_ContextCall(PSI_Context *C, decl_callinfo *decl_call, impl_vararg *va)
1150 {
1151 C->ops->call(C, decl_call, va);
1152 }
1153
1154 static inline void dump_decl_type(int fd, decl_type *t) {
1155 const char *pre;
1156
1157 switch (t->type) {
1158 case PSI_T_STRUCT:
1159 pre = "struct ";
1160 break;
1161 default:
1162 pre = "";
1163 }
1164 dprintf(fd, "%s%s", pre, t->name);
1165 }
1166 static inline void dump_decl_var(int fd, decl_var *v) {
1167 dprintf(fd, "%.*s%s", v->pointer_level-!!v->array_size, "**********", v->name);
1168 if (v->array_size) {
1169 dprintf(fd, "[%u]", v->array_size);
1170 }
1171 }
1172 static inline void dump_decl_arg(int fd, decl_arg *a) {
1173 dump_decl_type(fd, a->type);
1174 dprintf(fd, " ");
1175 dump_decl_var(fd, a->var);
1176 }
1177 static inline void dump_level(int fd, unsigned level) {
1178 dprintf(fd, "%.*s", level, "\t\t\t\t\t\t\t\t\t");
1179 }
1180 static inline void dump_num_exp(int fd, num_exp *exp) {
1181 while (exp) {
1182 switch (exp->t) {
1183 case PSI_T_NUMBER:
1184 dprintf(fd, "%s", exp->u.numb);
1185 break;
1186 case PSI_T_NSNAME:
1187 dprintf(fd, "%s", exp->u.cnst->name);
1188 break;
1189 case PSI_T_NAME:
1190 dump_decl_var(fd, exp->u.dvar);
1191 break;
1192 EMPTY_SWITCH_DEFAULT_CASE();
1193 }
1194 if (exp->operand) {
1195 char op;
1196
1197 switch (exp->operator) {
1198 case PSI_T_PLUS: op = '+'; break;
1199 case PSI_T_MINUS: op = '-'; break;
1200 case PSI_T_ASTERISK:op = '*'; break;
1201 case PSI_T_SLASH: op = '/'; break;
1202 EMPTY_SWITCH_DEFAULT_CASE();
1203 }
1204 dprintf(fd, " %c ", op);
1205 }
1206 exp = exp->operand;
1207 }
1208 }
1209
1210 static inline void dump_impl_set_value(int fd, set_value *set, unsigned level) {
1211 size_t i;
1212
1213 if (level > 1) {
1214 /* only if not directly after `set ...` */
1215 dump_level(fd, level);
1216 }
1217
1218 if (set->func->type == PSI_T_ELLIPSIS) {
1219 dprintf(fd, "%s(", set->outer.set->func->name);
1220 } else {
1221 dprintf(fd, "%s(", set->func->name);
1222 }
1223
1224 for (i = 0; i < set->vars->count; ++i) {
1225 decl_var *svar = set->vars->vars[i];
1226 if (i) {
1227 dprintf(fd, ", ");
1228 }
1229 dump_decl_var(fd, svar);
1230 }
1231
1232 if (set->func->type == PSI_T_ELLIPSIS) {
1233 dprintf(fd, ", ...");
1234 }
1235 if (set->num) {
1236 dprintf(fd, ", ");
1237 dump_num_exp(fd, set->num);
1238 }
1239 if (set->inner) {
1240 dprintf(fd, ",\n");
1241 for (i = 0; i < set->count; ++i) {
1242 dump_impl_set_value(fd, set->inner[i], level+1);
1243 }
1244 /* only if inner stmts, i.e. with new lines, were dumped */
1245 dump_level(fd, level);
1246 }
1247 if (level > 1) {
1248 dprintf(fd, "),\n");
1249 } else {
1250 dprintf(fd, ");\n");
1251 }
1252 }
1253 void PSI_ContextDump(PSI_Context *C, int fd)
1254 {
1255 size_t i, j, k, l;
1256
1257 #ifdef HAVE_LIBJIT
1258 if (C->ops == PSI_Libjit()) {
1259 dprintf(fd, "// psi.engine=jit\n");
1260 }
1261 #endif
1262 #ifdef HAVE_LIBFFI
1263 if (C->ops == PSI_Libffi()) {
1264 dprintf(fd, "// psi.engine=ffi\n");
1265 }
1266 #endif
1267 dprintf(fd, "\n");
1268
1269 if (C->defs) {
1270 for (i = 0; i < C->defs->count; ++i) {
1271 decl_typedef *tdef = C->defs->list[i];
1272
1273 dprintf(fd, "typedef ");
1274 dump_decl_type(fd, tdef->type);
1275 dprintf(fd, " %s;\n", tdef->alias);
1276 }
1277 dprintf(fd, "\n");
1278 }
1279
1280 if (C->structs) {
1281 for (i = 0; i < C->structs->count; ++i) {
1282 decl_struct *strct = C->structs->list[i];
1283
1284 dprintf(fd, "struct %s::(%zu) {\n", strct->name, strct->size);
1285 if (strct->args) for (j = 0; j < strct->args->count; ++j) {
1286 decl_arg *sarg = strct->args->args[j];
1287
1288 dprintf(fd, "\t");
1289 dump_decl_arg(fd, sarg);
1290 dprintf(fd, "::(%zu, %zu);\n", sarg->layout->pos, sarg->layout->len);
1291 }
1292 dprintf(fd, "}\n");
1293 }
1294 dprintf(fd, "\n");
1295 }
1296 if (C->consts) {
1297 for (i = 0; i < C->consts->count; ++i) {
1298 constant *cnst = C->consts->list[i];
1299
1300 dprintf(fd, "const %s %s = ", cnst->type->name, cnst->name);
1301 if (cnst->val->type == PSI_T_QUOTED_STRING) {
1302 dprintf(fd, "\"%s\";\n", cnst->val->text);
1303 } else {
1304 dprintf(fd, "%s;\n", cnst->val->text);
1305 }
1306 }
1307 dprintf(fd, "\n");
1308 }
1309 if (C->decls) {
1310 for (i = 0; i < C->decls->count; ++i) {
1311 decl *decl = C->decls->list[i];
1312
1313 dprintf(fd, "%s ", decl->abi->convention);
1314 dump_decl_arg(fd, decl->func);
1315 dprintf(fd, "(");
1316 if (decl->args) {
1317 for (j = 0; j < decl->args->count; ++j) {
1318 if (j) {
1319 dprintf(fd, ", ");
1320 }
1321 dump_decl_arg(fd, decl->args->args[j]);
1322 }
1323 if (decl->args->varargs) {
1324 dprintf(fd, ", ...");
1325 }
1326 }
1327 dprintf(fd, ");\n");
1328 }
1329 dprintf(fd, "\n");
1330 }
1331 if (C->impls) {
1332 for (i = 0; i < C->impls->count; ++i) {
1333 impl *impl = C->impls->list[i];
1334
1335 dprintf(fd, "function %s(", impl->func->name);
1336 if (impl->func->args) {
1337 for (j = 0; j < impl->func->args->count; ++j) {
1338 impl_arg *iarg = impl->func->args->args[j];
1339
1340 dprintf(fd, "%s%s %s$%s",
1341 j ? ", " : "",
1342 iarg->type->name,
1343 iarg->var->reference ? "&" : "",
1344 iarg->var->name);
1345 if (iarg->def) {
1346 dprintf(fd, " = %s", iarg->def->text);
1347 }
1348 }
1349 if (impl->func->args->vararg.name) {
1350 impl_arg *vararg = impl->func->args->vararg.name;
1351
1352 dprintf(fd, ", %s %s...$%s",
1353 vararg->type->name,
1354 vararg->var->reference ? "&" : "",
1355 vararg->var->name);
1356 }
1357 }
1358 dprintf(fd, ") : %s%s {\n",
1359 impl->func->return_reference ? "&":"",
1360 impl->func->return_type->name);
1361 if (impl->stmts) {
1362 for (j = 0; j < impl->stmts->let.count; ++j) {
1363 let_stmt *let = impl->stmts->let.list[j];
1364
1365 dprintf(fd, "\tlet %s", let->var->name);
1366 if (let->val) {
1367 dprintf(fd, " = %s", let->val->flags.one.is_reference ? "&" : "");
1368 switch (let->val->kind) {
1369 case PSI_LET_NULL:
1370 dprintf(fd, "NULL");
1371 break;
1372 case PSI_LET_TMP:
1373 dump_decl_var(fd, let->val->data.var);
1374 break;
1375 case PSI_LET_CALLOC:
1376 dprintf(fd, "calloc(");
1377 dump_num_exp(fd, let->val->data.alloc->nmemb);
1378 dprintf(fd, ", ");
1379 dump_num_exp(fd, let->val->data.alloc->size);
1380 dprintf(fd, ")");
1381 break;
1382 case PSI_LET_FUNC:
1383 dprintf(fd, "%s($%s)", let->val->data.func->name,
1384 let->val->data.func->var->name);
1385 break;
1386
1387 EMPTY_SWITCH_DEFAULT_CASE();
1388 }
1389 dprintf(fd, ";\n");
1390 }
1391 }
1392 for (j = 0; j < impl->stmts->ret.count; ++j) {
1393 return_stmt *ret = impl->stmts->ret.list[j];
1394
1395 dprintf(fd, "\treturn ");
1396 dump_impl_set_value(fd, ret->set, 1);
1397 }
1398 for (j = 0; j < impl->stmts->set.count; ++j) {
1399 set_stmt *set = impl->stmts->set.list[j];
1400
1401 dprintf(fd, "\tset $%s = ", set->var->name);
1402 dump_impl_set_value(fd, set->val, 1);
1403 }
1404 for (j = 0; j < impl->stmts->fre.count; ++j) {
1405 free_stmt *fre = impl->stmts->fre.list[j];
1406
1407 dprintf(fd, "\tfree ");
1408 for (k = 0; k < fre->calls->count; ++k) {
1409 free_call *call = fre->calls->list[k];
1410
1411 if (k) {
1412 dprintf(fd, ", ");
1413 }
1414 dprintf(fd, "%s(", call->func);
1415 for (l = 0; l < call->vars->count; ++l) {
1416 decl_var *fvar = call->vars->vars[l];
1417
1418 dump_decl_var(fd, fvar);
1419 }
1420 dprintf(fd, ");\n");
1421 }
1422 }
1423 }
1424 dprintf(fd, "}\n");
1425 }
1426 dprintf(fd, "\n");
1427 }
1428 }
1429
1430 void PSI_ContextDtor(PSI_Context *C)
1431 {
1432 size_t i;
1433 zend_function_entry *zfe;
1434
1435 if (C->ops->dtor) {
1436 C->ops->dtor(C);
1437 }
1438
1439 free_decl_libs(&C->psi.libs);
1440
1441 if (C->data) {
1442 for (i = 0; i < C->count; ++i) {
1443 PSI_DataDtor(&C->data[i]);
1444 }
1445 free(C->data);
1446 }
1447
1448 if (C->closures) {
1449 for (zfe = C->closures; zfe->fname; ++zfe) {
1450 free((void *) zfe->arg_info);
1451 }
1452 free(C->closures);
1453 }
1454
1455 if (C->consts) {
1456 if (C->consts->list) {
1457 free(C->consts->list);
1458 }
1459 free(C->consts);
1460 }
1461 if (C->defs) {
1462 if (C->defs->list) {
1463 free(C->defs->list);
1464 }
1465 free(C->defs);
1466 }
1467 if (C->structs) {
1468 if (C->structs->list) {
1469 free(C->structs->list);
1470 }
1471 free(C->structs);
1472 }
1473 if (C->decls) {
1474 if (C->decls->list) {
1475 free(C->decls->list);
1476 }
1477 free(C->decls);
1478 }
1479 if (C->impls) {
1480 if (C->impls->list) {
1481 free(C->impls->list);
1482 }
1483 free(C->impls);
1484 }
1485
1486 memset(C, 0, sizeof(*C));
1487 }
1488
1489 void PSI_ContextFree(PSI_Context **C)
1490 {
1491 if (*C) {
1492 PSI_ContextDtor(*C);
1493 free(*C);
1494 *C = NULL;
1495 }
1496 }
PHP System Interface / POSIX Standard Interface