7 #include "php_psi_stdinc.h"
11 # define NAMLEN(dirent) strlen ((dirent)->d_name)
13 # define dirent direct
14 # define NAMLEN(dirent) ((dirent)->d_namlen)
15 # ifdef HAVE_SYS_NDIR_H
16 # include <sys/ndir.h>
18 # ifdef HAVE_SYS_DIR_H
26 #include <sys/param.h>
31 #include "php_scandir.h"
37 static struct psi_std_type
{
39 const char *type_name
;
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"},
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"
62 static int validate_lib(PSI_Data
*data
, void **dlopened
) {
64 const char *ptr
= data
->psi
.file
.ln
;
68 /* FIXME: assume stdlib */
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
);
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());
86 static inline int locate_decl_type_alias(decl_typedefs
*defs
, decl_type
*type
) {
88 struct psi_std_type
*stdtyp
;
93 for (i
= 0; i
< defs
->count
; ++i
) {
94 decl_typedef
*def
= defs
->list
[i
];
96 if (def
->type
->type
!= type
->type
&& !strcmp(def
->alias
, type
->name
)) {
97 type
->real
= def
->type
;
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
;
110 static inline int locate_decl_type_struct(decl_structs
*structs
, decl_type
*type
) {
116 for (i
= 0; i
< structs
->count
; ++i
) {
117 if (!strcmp(structs
->list
[i
]->name
, type
->name
)) {
118 type
->strct
= structs
->list
[i
];
125 static inline int validate_decl_type(PSI_Data
*data
, decl_type
*type
) {
126 switch (type
->type
) {
128 if (!data
->defs
|| !locate_decl_type_alias(data
->defs
, type
)) {
132 return validate_decl_type(data
, type
->real
);
136 if (!data
->structs
|| !locate_decl_type_struct(data
->structs
, type
)) {
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
);
150 /* FIXME: check def->alias */
154 static inline int validate_constant(PSI_Data
*data
, constant
*c
) {
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
);
169 static inline int validate_decl_struct(PSI_Data
*data
, decl_struct
*s
) {
172 for (i
= 0; i
< s
->args
->count
; ++i
) {
173 if (!validate_decl_arg(data
, s
->args
->args
[i
])) {
178 for (i
= 0; i
< s
->args
->count
; ++i
) {
179 decl_arg
*darg
= s
->args
->args
[i
];
181 if (!validate_decl_arg(data
, darg
)) {
185 ZEND_ASSERT(!darg
->var
->arg
|| darg
->var
->arg
== darg
);
186 darg
->var
->arg
= darg
;
191 if (darg
->var
->pointer_level
&& (!darg
->var
->array_size
|| darg
->var
->pointer_level
== 1)) {
194 t
= real_decl_type(darg
->type
)->type
;
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
);
203 darg
->layout
= init_decl_struct_layout(0, psi_t_size(t
));
206 if (s
->size
< darg
->layout
->pos
+ darg
->layout
->len
) {
207 s
->size
= darg
->layout
->pos
+ darg
->layout
->len
;
213 static const char * const abi_ccs
[] = {
215 "extern", /* > - all the same */
221 static inline int validate_decl_abi(PSI_Data
*data
, decl_abi
*abi
) {
224 for (i
= 0; i
< sizeof(abi_ccs
)/sizeof(char*); ++i
) {
225 if (strcasecmp(abi
->convention
, abi_ccs
[i
])) {
231 static inline int validate_decl_func(PSI_Data
*data
, void *dl
, decl
*decl
, decl_arg
*func
)
233 struct psi_func_redir
*redir
;
235 if (!strcmp(func
->var
->name
, "dlsym")) {
236 data
->error(func
->token
, PSI_WARNING
, "Cannot dlsym dlsym (sic!)");
240 if (!validate_decl_arg(data
, func
)) {
243 for (redir
= &psi_func_redirs
[0]; redir
->name
; ++redir
) {
244 if (!strcmp(func
->var
->name
, redir
->name
)) {
245 decl
->call
.sym
= redir
->func
;
248 if (!decl
->call
.sym
) {
250 # define RTLD_NEXT ((void *) -1l)
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());
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
);
268 if (!validate_decl_func(data
, dl
, decl
, decl
->func
)) {
274 for (i
= 0; i
< decl
->args
->count
; ++i
) {
275 if (!validate_decl_arg(data
, decl
->args
->args
[i
])) {
282 static inline decl_arg
*locate_decl_var_arg(decl_var
*var
, decl_args
*args
, decl_arg
*func
) {
285 for (i
= 0; i
< args
->count
; ++i
) {
286 decl_arg
*arg
= args
->args
[i
];
288 if (!strcmp(var
->name
, arg
->var
->name
)) {
289 ZEND_ASSERT(!var
->arg
|| var
->arg
== arg
);
290 return var
->arg
= arg
;
293 if (func
&& !strcmp(var
->name
, func
->var
->name
)) {
294 return var
->arg
= func
;
299 static inline decl_arg
*locate_struct_member(decl_struct
*s
, decl_var
*var
) {
301 return locate_decl_var_arg(var
, s
->args
, NULL
);
306 static inline constant
*locate_num_exp_constant(num_exp
*exp
, constants
*consts
) {
309 for (i
= 0; i
< consts
->count
; ++i
) {
310 constant
*cnst
= consts
->list
[i
];
312 if (!strcmp(cnst
->name
, exp
->u
.numb
)) {
314 return exp
->u
.cnst
= cnst
;
320 static inline int validate_num_exp(PSI_Data
*data
, decl_args
*dargs
, decl_arg
*func
, num_exp
*exp
) {
322 switch (exp
->operator) {
324 exp
->calculator
= psi_calc_add
;
327 exp
->calculator
= psi_calc_sub
;
330 exp
->calculator
= psi_calc_mul
;
333 exp
->calculator
= psi_calc_div
;
335 EMPTY_SWITCH_DEFAULT_CASE();
337 if (!validate_num_exp(data
, dargs
, func
, exp
->operand
)) {
343 if (!locate_decl_var_arg(exp
->u
.dvar
, dargs
, func
)) {
344 data
->error(exp
->token
, PSI_WARNING
, "Unknown variable '%s' in numeric expression",
350 if (!locate_num_exp_constant(exp
, data
->consts
)) {
351 data
->error(exp
->token
, PSI_WARNING
, "Unknown constant '%s' in numeric expression",
362 static inline int validate_set_value_handler(set_value
*set
) {
363 switch (set
->func
->type
) {
365 set
->func
->handler
= psi_to_bool
;
368 set
->func
->handler
= psi_to_int
;
371 set
->func
->handler
= psi_to_double
;
373 case PSI_T_TO_STRING
:
374 set
->func
->handler
= psi_to_string
;
377 set
->func
->handler
= psi_to_array
;
379 case PSI_T_TO_OBJECT
:
380 set
->func
->handler
= psi_to_object
;
383 set
->func
->handler
= psi_to_void
;
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
;
398 static inline void decl_var_arg_v(decl_args
*args
, va_list argp
) {
402 memset(args
, 0, sizeof(*args
));
404 while ((argc
= va_arg(argp
, int))) {
405 argv
= va_arg(argp
, decl_arg
**);
407 add_decl_arg(args
, *argv
++);
411 static inline int validate_set_value_ex(PSI_Data
*data
, set_value
*set
, decl_arg
*ref
, decl_args
*ref_list
) {
414 decl_var
*set_var
= set
->vars
->vars
[0];
416 if (!validate_set_value_handler(set
)) {
417 data
->error(set
->func
->token
, PSI_WARNING
, "Invalid cast '%s' in `set` statement", set
->func
->name
);
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
);
432 ref_type
= real_decl_type(ref
->type
);
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
);
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
);
445 if (!validate_num_exp(data
, ref_list
, ref
, set
->num
)) {
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
);
458 if (!validate_set_value_ex(data
, set
->inner
[i
], sub_ref
, ref_type
->strct
->args
)) {
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
);
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");
474 if (!validate_set_value_ex(data
, set
->inner
[0], sub_ref
, ref_list
)) {
478 } else if (set
->count
> 1) {
479 data
->error(set
->func
->token
, E_WARNING
, "Inner `set` statement casts on pointers may only occur once");
485 static inline int validate_set_value(PSI_Data
*data
, set_value
*set
, ...) {
487 decl_args args
= {0};
491 decl_var_arg_v(&args
, argp
);
494 check
= validate_set_value_ex(data
, set
, NULL
, &args
);
500 static inline decl
*locate_impl_decl(decls
*decls
, return_stmt
*ret
) {
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
];
514 static inline int validate_impl_ret_stmt(PSI_Data
*data
, impl
*impl
) {
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
);
526 data
->error(impl
->func
->token
, PSI_WARNING
,
527 "Missing `return` statement for implementation %s",
533 ret
= impl
->stmts
->ret
.list
[0];
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
);
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)) {
546 impl
->decl
->impl
= impl
;
551 static inline int validate_impl_let_stmts(PSI_Data
*data
, impl
*impl
) {
553 /* we can have multiple let stmts */
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
];
561 if (let
->val
&& let
->val
->kind
== PSI_LET_TMP
) {
562 let_var
= let
->val
->data
.var
;
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
);
573 switch (let
->val
->kind
) {
577 /* e.g. let bar = &strval($bar); // decl_arg(char **bar) */
578 /* e.g. let foo = *bar; */
579 let
->var
->pointer_level
= let
->val
->data
.var
->pointer_level
;
580 let
->var
->arg
= init_decl_arg(
582 real_decl_type(let
->val
->data
.var
->arg
->type
)->type
,
583 real_decl_type(let
->val
->data
.var
->arg
->type
)->name
),
586 let
->var
->pointer_level
,
587 let
->var
->array_size
));
590 if (!validate_num_exp(data
, impl
->decl
->args
, impl
->decl
->func
, let
->val
->data
.num
)) {
595 if (!validate_num_exp(data
, impl
->decl
->args
, impl
->decl
->func
, let
->val
->data
.alloc
->nmemb
)) {
598 if (!validate_num_exp(data
, impl
->decl
->args
, impl
->decl
->func
, let
->val
->data
.alloc
->size
)) {
603 if (impl
->func
->args
) {
604 for (j
= 0; j
< impl
->func
->args
->count
; ++j
) {
605 impl_arg
*iarg
= impl
->func
->args
->args
[j
];
607 if (!strcmp(let
->val
->data
.func
->var
->name
, iarg
->var
->name
)) {
608 let
->val
->data
.func
->arg
= iarg
;
615 data
->error(let
->var
->token
, PSI_WARNING
, "Unknown value '$%s' of `let` statement"
616 " for variable '%s' of implementation '%s'",
617 let
->val
->data
.func
->var
->name
, let
->var
->name
, impl
->func
->name
);
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
];
629 for (j
= 0; j
< impl
->stmts
->let
.count
; ++j
) {
630 let_stmt
*let
= impl
->stmts
->let
.list
[j
];
632 if (!strcmp(let
->var
->name
, darg
->var
->name
)) {
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
);
650 static inline int validate_impl_set_stmts(PSI_Data
*data
, impl
*impl
) {
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
];
658 if (impl
->func
->args
) for (j
= 0; j
< impl
->func
->args
->count
; ++j
) {
659 impl_arg
*iarg
= impl
->func
->args
->args
[j
];
661 if (!strcmp(set
->var
->name
, iarg
->var
->name
)) {
668 data
->error(set
->var
->token
, PSI_WARNING
, "Unknown variable '$%s' of `set` statement"
669 " of implementation '%s'",
670 set
->var
->name
, impl
->func
->name
);
674 for (j
= 0; j
< set
->val
->vars
->count
; ++j
) {
675 decl_var
*set_var
= set
->val
->vars
->vars
[j
];
678 if (impl
->decl
->args
) {
679 for (k
= 0; k
< impl
->decl
->args
->count
; ++k
) {
680 decl_arg
*set_arg
= impl
->decl
->args
->args
[k
];
682 if (!strcmp(set_var
->name
, set_arg
->var
->name
)) {
684 set_var
->arg
= set_arg
;
685 if (!validate_set_value(data
, set
->val
, 1, &set_arg
, 1, &impl
->decl
->func
, impl
->decl
->args
->count
, impl
->decl
->args
->args
, 0)) {
693 for (k
= 0; k
< impl
->stmts
->let
.count
; ++k
) {
694 let_stmt
*let
= impl
->stmts
->let
.list
[k
];
696 /* check temp vars */
697 if (let
->val
&& let
->val
->kind
== PSI_LET_TMP
) {
698 if (!strcmp(set_var
->name
, let
->var
->name
)) {
700 set_var
->arg
= let
->var
->arg
;
701 if (!validate_set_value(data
, set
->val
, 1, &set_var
->arg
, 1, &impl
->decl
->func
, impl
->decl
->args
->count
, impl
->decl
->args
->args
, 0)) {
711 data
->error(set_var
->token
, PSI_WARNING
, "Unknown value '%s' of `set` statement"
712 " for variable '$%s' of implementation '%s'",
713 set_var
->name
, set
->arg
->var
->name
, impl
->func
->name
);
720 static inline decl
*locate_free_decl(decls
*decls
, free_call
*f
) {
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
];
734 static inline int validate_impl_free_stmts(PSI_Data
*data
, impl
*impl
) {
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
];
740 for (j
= 0; j
< fre
->calls
->count
; ++j
) {
741 free_call
*free_call
= fre
->calls
->list
[j
];
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
);
754 /* now check for known vars */
755 for (l
= 0; l
< free_call
->vars
->count
; ++l
) {
757 decl_var
*free_var
= free_call
->vars
->vars
[l
];
759 if (!strcmp(free_var
->name
, impl
->decl
->func
->var
->name
)) {
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
];
766 if (!strcmp(free_var
->name
, free_arg
->var
->name
)) {
768 free_var
->arg
= free_arg
;
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
);
786 static inline int validate_impl_stmts(PSI_Data
*data
, impl
*impl
) {
788 data
->error(impl
->func
->token
, PSI_WARNING
,
789 "Missing body for implementation %s!",
794 if (!validate_impl_ret_stmt(data
, impl
)) {
798 if (!validate_impl_let_stmts(data
, impl
)) {
801 if (!validate_impl_set_stmts(data
, impl
)) {
804 if (!validate_impl_free_stmts(data
, impl
)) {
811 static inline int validate_impl_args(PSI_Data
*data
, impl
*impl
) {
815 for (i
= 0; i
< impl
->func
->args
->count
; ++i
) {
816 impl_arg
*iarg
= impl
->func
->args
->args
[i
];
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
);
831 static inline int validate_impl(PSI_Data
*data
, impl
*impl
) {
832 if (!validate_impl_args(data
, impl
)) {
835 return validate_impl_stmts(data
, impl
);
838 PSI_Context
*PSI_ContextInit(PSI_Context
*C
, PSI_ContextOps
*ops
, PSI_ContextErrorFunc error
)
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
;
848 C
= malloc(sizeof(*C
));
850 memset(C
, 0, sizeof(*C
));
859 ZEND_ASSERT(ops
->call
!= NULL
);
860 ZEND_ASSERT(ops
->compile
!= NULL
);
862 /* build up predefs in a temporary PSI_Data for validation */
863 memset(&T
, 0, sizeof(T
));
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
);
870 T
.defs
= add_decl_typedef(T
.defs
, def
);
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
);
877 T
.consts
= add_constant(T
.consts
, constant
);
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
);
884 dstruct
->size
= predef_struct
->size
;
885 for (member
= &predef_struct
[1]; member
->type_tag
; ++member
) {
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
);
897 T
.structs
= add_decl_struct(T
.structs
, dstruct
);
898 predef_struct
= member
;
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
);
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
);
915 T
.decls
= add_decl(T
.decls
, decl
);
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
);
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
);
935 T
.decls
= add_decl(T
.decls
, decl
);
939 for (i
= 0; i
< T
.defs
->count
; ++i
) {
940 decl_typedef
*def
= T
.defs
->list
[i
];
942 if (validate_decl_typedef(&T
, def
)) {
943 C
->defs
= add_decl_typedef(C
->defs
, def
);
947 for (i
= 0; i
< T
.consts
->count
; ++i
) {
948 constant
*constant
= T
.consts
->list
[i
];
950 if (validate_constant(&T
, constant
)) {
951 C
->consts
= add_constant(C
->consts
, constant
);
955 for (i
= 0; i
< T
.structs
->count
; ++i
) {
956 decl_struct
*dstruct
= T
.structs
->list
[i
];
958 if (validate_decl_struct(&T
, dstruct
)) {
959 C
->structs
= add_decl_struct(C
->structs
, dstruct
);
963 for (i
= 0; i
< T
.decls
->count
; ++i
) {
964 decl
*decl
= T
.decls
->list
[i
];
966 if (validate_decl(&T
, NULL
, decl
)) {
967 C
->decls
= add_decl(C
->decls
, decl
);
972 C
->data
= malloc(sizeof(*C
->data
));
973 PSI_DataExchange(C
->data
, &T
);
978 int PSI_ContextValidate(PSI_Context
*C
, PSI_Parser
*P
)
981 void *dlopened
= NULL
;
982 size_t count
= C
->count
++;
984 C
->data
= realloc(C
->data
, C
->count
* sizeof(*C
->data
));
985 D
= PSI_DataExchange(&C
->data
[count
], PSI_DATA(P
));
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
]);
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
]);
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
]);
1015 if (!validate_lib(D
, &dlopened
)) {
1019 add_decl_lib(&C
->psi
.libs
, dlopened
);
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
]);
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
]);
1043 static int psi_select_dirent(const struct dirent
*entry
)
1045 #ifndef FNM_CASEFOLD
1046 #define FNM_CASEFOLD 0
1048 return 0 == fnmatch("*.psi", entry
->d_name
, FNM_CASEFOLD
);
1051 void PSI_ContextBuild(PSI_Context
*C
, const char *paths
)
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
;
1059 sep
= strchr(ptr
, ':');
1065 n
= php_scandir(ptr
, &entries
, psi_select_dirent
, alphasort
);
1068 for (i
= 0; i
< n
; ++i
) {
1069 char psi
[MAXPATHLEN
];
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
);
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
));
1082 while (0 < PSI_ParserScan(&P
)) {
1083 PSI_ParserParse(&P
, PSI_TokenAlloc(&P
));
1084 if (P
.num
== PSI_T_EOF
) {
1089 PSI_ParserParse(&P
, NULL
);
1090 PSI_ContextValidate(C
, &P
);
1096 for (i
= 0; i
< n
; ++i
) {
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!");
1114 zend_function_entry
*PSI_ContextCompile(PSI_Context
*C
)
1121 zc
.flags
= CONST_PERSISTENT
|CONST_CS
;
1122 zc
.module_number
= EG(current_module
)->module_number
;
1124 for (i
= 0; i
< C
->consts
->count
; ++i
) {
1125 constant
*c
= C
->consts
->list
[i
];
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));
1130 switch (c
->type
->type
) {
1132 convert_to_boolean(&zc
.value
);
1135 convert_to_long(&zc
.value
);
1138 convert_to_double(&zc
.value
);
1141 zend_register_constant(&zc
);
1145 return C
->closures
= C
->ops
->compile(C
);
1149 void PSI_ContextCall(PSI_Context
*C
, decl_callinfo
*decl_call
, impl_vararg
*va
)
1151 C
->ops
->call(C
, decl_call
, va
);
1154 static inline void dump_decl_type(int fd
, decl_type
*t
) {
1164 dprintf(fd
, "%s%s", pre
, t
->name
);
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
);
1172 static inline void dump_decl_arg(int fd
, decl_arg
*a
) {
1173 dump_decl_type(fd
, a
->type
);
1175 dump_decl_var(fd
, a
->var
);
1177 static inline void dump_level(int fd
, unsigned level
) {
1178 dprintf(fd
, "%.*s", level
, "\t\t\t\t\t\t\t\t\t");
1180 static inline void dump_num_exp(int fd
, num_exp
*exp
) {
1184 dprintf(fd
, "%s", exp
->u
.numb
);
1187 dprintf(fd
, "%s", exp
->u
.cnst
->name
);
1190 dump_decl_var(fd
, exp
->u
.dvar
);
1192 EMPTY_SWITCH_DEFAULT_CASE();
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();
1204 dprintf(fd
, " %c ", op
);
1210 static inline void dump_impl_set_value(int fd
, set_value
*set
, unsigned level
) {
1214 /* only if not directly after `set ...` */
1215 dump_level(fd
, level
);
1218 if (set
->func
->type
== PSI_T_ELLIPSIS
) {
1219 dprintf(fd
, "%s(", set
->outer
.set
->func
->name
);
1221 dprintf(fd
, "%s(", set
->func
->name
);
1224 for (i
= 0; i
< set
->vars
->count
; ++i
) {
1225 decl_var
*svar
= set
->vars
->vars
[i
];
1229 dump_decl_var(fd
, svar
);
1232 if (set
->func
->type
== PSI_T_ELLIPSIS
) {
1233 dprintf(fd
, ", ...");
1237 dump_num_exp(fd
, set
->num
);
1241 for (i
= 0; i
< set
->count
; ++i
) {
1242 dump_impl_set_value(fd
, set
->inner
[i
], level
+1);
1244 /* only if inner stmts, i.e. with new lines, were dumped */
1245 dump_level(fd
, level
);
1248 dprintf(fd
, "),\n");
1250 dprintf(fd
, ");\n");
1253 void PSI_ContextDump(PSI_Context
*C
, int fd
)
1258 if (C
->ops
== PSI_Libjit()) {
1259 dprintf(fd
, "// psi.engine=jit\n");
1263 if (C
->ops
== PSI_Libffi()) {
1264 dprintf(fd
, "// psi.engine=ffi\n");
1270 for (i
= 0; i
< C
->defs
->count
; ++i
) {
1271 decl_typedef
*tdef
= C
->defs
->list
[i
];
1273 dprintf(fd
, "typedef ");
1274 dump_decl_type(fd
, tdef
->type
);
1275 dprintf(fd
, " %s;\n", tdef
->alias
);
1281 for (i
= 0; i
< C
->structs
->count
; ++i
) {
1282 decl_struct
*strct
= C
->structs
->list
[i
];
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
];
1289 dump_decl_arg(fd
, sarg
);
1290 dprintf(fd
, "::(%zu, %zu);\n", sarg
->layout
->pos
, sarg
->layout
->len
);
1297 for (i
= 0; i
< C
->consts
->count
; ++i
) {
1298 constant
*cnst
= C
->consts
->list
[i
];
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
);
1304 dprintf(fd
, "%s;\n", cnst
->val
->text
);
1310 for (i
= 0; i
< C
->decls
->count
; ++i
) {
1311 decl
*decl
= C
->decls
->list
[i
];
1313 dprintf(fd
, "%s ", decl
->abi
->convention
);
1314 dump_decl_arg(fd
, decl
->func
);
1317 for (j
= 0; j
< decl
->args
->count
; ++j
) {
1321 dump_decl_arg(fd
, decl
->args
->args
[j
]);
1323 if (decl
->args
->varargs
) {
1324 dprintf(fd
, ", ...");
1327 dprintf(fd
, ");\n");
1332 for (i
= 0; i
< C
->impls
->count
; ++i
) {
1333 impl
*impl
= C
->impls
->list
[i
];
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
];
1340 dprintf(fd
, "%s%s %s$%s",
1343 iarg
->var
->reference
? "&" : "",
1346 dprintf(fd
, " = %s", iarg
->def
->text
);
1349 if (impl
->func
->args
->vararg
.name
) {
1350 impl_arg
*vararg
= impl
->func
->args
->vararg
.name
;
1352 dprintf(fd
, ", %s %s...$%s",
1354 vararg
->var
->reference
? "&" : "",
1358 dprintf(fd
, ") : %s%s {\n",
1359 impl
->func
->return_reference
? "&":"",
1360 impl
->func
->return_type
->name
);
1362 for (j
= 0; j
< impl
->stmts
->let
.count
; ++j
) {
1363 let_stmt
*let
= impl
->stmts
->let
.list
[j
];
1365 dprintf(fd
, "\tlet %s", let
->var
->name
);
1367 dprintf(fd
, " = %s", let
->val
->flags
.one
.is_reference
? "&" : "");
1368 switch (let
->val
->kind
) {
1370 dprintf(fd
, "NULL");
1373 dump_decl_var(fd
, let
->val
->data
.var
);
1375 case PSI_LET_CALLOC
:
1376 dprintf(fd
, "calloc(");
1377 dump_num_exp(fd
, let
->val
->data
.alloc
->nmemb
);
1379 dump_num_exp(fd
, let
->val
->data
.alloc
->size
);
1383 dprintf(fd
, "%s($%s)", let
->val
->data
.func
->name
,
1384 let
->val
->data
.func
->var
->name
);
1387 EMPTY_SWITCH_DEFAULT_CASE();
1392 for (j
= 0; j
< impl
->stmts
->ret
.count
; ++j
) {
1393 return_stmt
*ret
= impl
->stmts
->ret
.list
[j
];
1395 dprintf(fd
, "\treturn ");
1396 dump_impl_set_value(fd
, ret
->set
, 1);
1398 for (j
= 0; j
< impl
->stmts
->set
.count
; ++j
) {
1399 set_stmt
*set
= impl
->stmts
->set
.list
[j
];
1401 dprintf(fd
, "\tset $%s = ", set
->var
->name
);
1402 dump_impl_set_value(fd
, set
->val
, 1);
1404 for (j
= 0; j
< impl
->stmts
->fre
.count
; ++j
) {
1405 free_stmt
*fre
= impl
->stmts
->fre
.list
[j
];
1407 dprintf(fd
, "\tfree ");
1408 for (k
= 0; k
< fre
->calls
->count
; ++k
) {
1409 free_call
*call
= fre
->calls
->list
[k
];
1414 dprintf(fd
, "%s(", call
->func
);
1415 for (l
= 0; l
< call
->vars
->count
; ++l
) {
1416 decl_var
*fvar
= call
->vars
->vars
[l
];
1418 dump_decl_var(fd
, fvar
);
1420 dprintf(fd
, ");\n");
1430 void PSI_ContextDtor(PSI_Context
*C
)
1433 zend_function_entry
*zfe
;
1439 free_decl_libs(&C
->psi
.libs
);
1442 for (i
= 0; i
< C
->count
; ++i
) {
1443 PSI_DataDtor(&C
->data
[i
]);
1449 for (zfe
= C
->closures
; zfe
->fname
; ++zfe
) {
1450 free((void *) zfe
->arg_info
);
1456 if (C
->consts
->list
) {
1457 free(C
->consts
->list
);
1462 if (C
->defs
->list
) {
1463 free(C
->defs
->list
);
1468 if (C
->structs
->list
) {
1469 free(C
->structs
->list
);
1474 if (C
->decls
->list
) {
1475 free(C
->decls
->list
);
1480 if (C
->impls
->list
) {
1481 free(C
->impls
->list
);
1486 memset(C
, 0, sizeof(*C
));
1489 void PSI_ContextFree(PSI_Context
**C
)
1492 PSI_ContextDtor(*C
);