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 #ifdef HAVE_LONG_DOUBLE
44 {PSI_T_LONG_DOUBLE
, "long double"},
46 {PSI_T_INT8
, "int8_t"},
47 {PSI_T_INT16
, "int16_t"},
48 {PSI_T_INT32
, "int32_t"},
49 {PSI_T_INT64
, "int64_t"},
50 {PSI_T_UINT8
, "uint8_t"},
51 {PSI_T_UINT16
, "uint16_t"},
52 {PSI_T_UINT32
, "uint32_t"},
53 {PSI_T_UINT64
, "uint64_t"},
57 #include "php_psi_types.h"
58 #include "php_psi_consts.h"
59 #include "php_psi_macros.h"
60 #include "php_psi_redirs.h"
61 #include "php_psi_decls.h"
62 #include "php_psi_va_decls.h"
63 #include "php_psi_structs.h"
65 static int validate_lib(PSI_Data
*data
, void **dlopened
) {
67 const char *ptr
= data
->psi
.file
.ln
;
71 /* FIXME: assume stdlib */
73 } else if (!strchr(ptr
, '/')) {
74 len
= snprintf(lib
, MAXPATHLEN
, "lib%s.%s", ptr
, PHP_PSI_SHLIB_SUFFIX
);
75 if (MAXPATHLEN
== len
) {
76 data
->error(NULL
, PSI_WARNING
, "Library name too long: '%s'", ptr
);
81 if (!(*dlopened
= dlopen(ptr
, RTLD_LAZY
|RTLD_LOCAL
))) {
82 data
->error(NULL
, PSI_WARNING
, "Could not open library '%s': %s.",
83 data
->psi
.file
.ln
, dlerror());
89 static inline int locate_decl_type_alias(decl_typedefs
*defs
, decl_type
*type
) {
91 struct psi_std_type
*stdtyp
;
96 for (i
= 0; i
< defs
->count
; ++i
) {
97 decl_typedef
*def
= defs
->list
[i
];
99 if (def
->type
->type
!= type
->type
&& !strcmp(def
->alias
, type
->name
)) {
100 type
->real
= def
->type
;
104 for (stdtyp
= &psi_std_types
[0]; stdtyp
->type_tag
; ++stdtyp
) {
105 if (!strcmp(type
->name
, stdtyp
->type_name
)) {
106 type
->type
= stdtyp
->type_tag
;
113 static inline int locate_decl_type_struct(decl_structs
*structs
, decl_type
*type
) {
119 for (i
= 0; i
< structs
->count
; ++i
) {
120 if (!strcmp(structs
->list
[i
]->name
, type
->name
)) {
121 type
->strct
= structs
->list
[i
];
128 static inline int validate_decl_type(PSI_Data
*data
, decl_type
*type
) {
129 switch (type
->type
) {
135 if (!data
->defs
|| !locate_decl_type_alias(data
->defs
, type
)) {
139 return validate_decl_type(data
, type
->real
);
143 if (!data
->structs
|| !locate_decl_type_struct(data
->structs
, type
)) {
150 static inline int validate_decl_typedef(PSI_Data
*data
, decl_typedef
*def
) {
151 if (!validate_decl_type(data
, def
->type
)) {
152 data
->error(def
->token
, PSI_WARNING
,
153 "Type '%s' cannot be aliased to %s'%s'",
154 def
->type
->name
, def
->type
->type
== PSI_T_STRUCT
?"struct ":"",def
->alias
);
157 /* FIXME: check def->alias */
161 static inline int validate_constant(PSI_Data
*data
, constant
*c
) {
166 static inline int validate_decl_arg(PSI_Data
*data
, decl_arg
*arg
) {
167 if (!validate_decl_type(data
, arg
->type
)) {
168 data
->error(arg
->type
->token
, PSI_WARNING
,
169 "Cannot use '%s'(%d) as type for decl var '%s'",
170 arg
->type
->name
, arg
->type
->type
, arg
->var
->name
);
176 static int psi_sort_struct_arg_cmp(const void *_a
, const void *_b
) {
177 decl_arg
*a
= *(decl_arg
**)_a
, *b
= *(decl_arg
**)_b
;
179 if (a
->layout
->pos
== b
->layout
->pos
) {
180 if (a
->layout
->len
== b
->layout
->len
) {
182 } else if (a
->layout
->len
> b
->layout
->len
) {
187 } else if (a
->layout
->pos
> b
->layout
->pos
) {
193 static void psi_sort_struct_arg_swp(void *a
, void *b
) {
194 decl_arg
**_a
= a
, **_b
= b
, *_c
;
200 static inline void psi_sort_struct_args(decl_struct
*s
) {
201 zend_insert_sort(s
->args
->args
, s
->args
->count
, sizeof(*s
->args
->args
),
202 psi_sort_struct_arg_cmp
, psi_sort_struct_arg_swp
);
205 static inline int validate_decl_struct(PSI_Data
*data
, decl_struct
*s
) {
208 for (i
= 0; i
< s
->args
->count
; ++i
) {
209 if (!validate_decl_arg(data
, s
->args
->args
[i
])) {
214 for (i
= 0; i
< s
->args
->count
; ++i
) {
215 decl_arg
*darg
= s
->args
->args
[i
];
217 if (!validate_decl_arg(data
, darg
)) {
221 ZEND_ASSERT(!darg
->var
->arg
|| darg
->var
->arg
== darg
);
222 darg
->var
->arg
= darg
;
227 if (darg
->var
->pointer_level
&& (!darg
->var
->array_size
|| darg
->var
->pointer_level
== 1)) {
230 t
= real_decl_type(darg
->type
)->type
;
234 decl_arg
*last
= s
->args
->args
[i
-1];
235 darg
->layout
= init_decl_struct_layout(
236 psi_t_align(t
, last
->layout
->pos
+ last
->layout
->len
),
237 psi_t_size(t
) * darg
->var
->array_size
);
239 darg
->layout
= init_decl_struct_layout(0, psi_t_size(t
));
242 if (s
->size
< darg
->layout
->pos
+ darg
->layout
->len
) {
243 s
->size
= darg
->layout
->pos
+ darg
->layout
->len
;
247 psi_sort_struct_args(s
);
252 static const char * const abi_ccs
[] = {
254 "extern", /* > - all the same */
260 static inline int validate_decl_abi(PSI_Data
*data
, decl_abi
*abi
) {
263 for (i
= 0; i
< sizeof(abi_ccs
)/sizeof(char*); ++i
) {
264 if (strcasecmp(abi
->convention
, abi_ccs
[i
])) {
270 static inline int validate_decl_func(PSI_Data
*data
, void *dl
, decl
*decl
, decl_arg
*func
)
272 struct psi_func_redir
*redir
;
274 if (!strcmp(func
->var
->name
, "dlsym")) {
275 data
->error(func
->token
, PSI_WARNING
, "Cannot dlsym dlsym (sic!)");
279 if (!validate_decl_arg(data
, func
)) {
282 for (redir
= &psi_func_redirs
[0]; redir
->name
; ++redir
) {
283 if (!strcmp(func
->var
->name
, redir
->name
)) {
284 decl
->call
.sym
= redir
->func
;
287 if (!decl
->call
.sym
) {
289 # define RTLD_NEXT ((void *) -1l)
291 decl
->call
.sym
= dlsym(dl
?: RTLD_NEXT
, func
->var
->name
);
292 if (!decl
->call
.sym
) {
293 data
->error(func
->token
, PSI_WARNING
,
294 "Failed to locate symbol '%s': %s",
295 func
->var
->name
, dlerror());
301 static inline int validate_decl(PSI_Data
*data
, void *dl
, decl
*decl
) {
302 if (!validate_decl_abi(data
, decl
->abi
)) {
303 data
->error(decl
->abi
->token
, PSI_WARNING
,
304 "Invalid calling convention: '%s'", decl
->abi
->token
->text
);
307 if (!validate_decl_func(data
, dl
, decl
, decl
->func
)) {
313 for (i
= 0; i
< decl
->args
->count
; ++i
) {
314 if (!validate_decl_arg(data
, decl
->args
->args
[i
])) {
321 static inline decl_arg
*locate_decl_var_arg(decl_var
*var
, decl_args
*args
, decl_arg
*func
) {
324 for (i
= 0; i
< args
->count
; ++i
) {
325 decl_arg
*arg
= args
->args
[i
];
327 if (!strcmp(var
->name
, arg
->var
->name
)) {
328 ZEND_ASSERT(!var
->arg
|| var
->arg
== arg
);
329 return var
->arg
= arg
;
332 if (func
&& !strcmp(var
->name
, func
->var
->name
)) {
333 return var
->arg
= func
;
338 static inline decl_arg
*locate_struct_member(decl_struct
*s
, decl_var
*var
) {
340 return locate_decl_var_arg(var
, s
->args
, NULL
);
345 static inline constant
*locate_num_exp_constant(num_exp
*exp
, constants
*consts
) {
348 for (i
= 0; i
< consts
->count
; ++i
) {
349 constant
*cnst
= consts
->list
[i
];
351 if (!strcmp(cnst
->name
, exp
->u
.numb
)) {
353 return exp
->u
.cnst
= cnst
;
359 static inline int validate_num_exp(PSI_Data
*data
, decl_args
*dargs
, decl_arg
*func
, num_exp
*exp
) {
361 switch (exp
->operator) {
363 exp
->calculator
= psi_calc_add
;
366 exp
->calculator
= psi_calc_sub
;
369 exp
->calculator
= psi_calc_mul
;
372 exp
->calculator
= psi_calc_div
;
374 EMPTY_SWITCH_DEFAULT_CASE();
376 if (!validate_num_exp(data
, dargs
, func
, exp
->operand
)) {
382 if (!locate_decl_var_arg(exp
->u
.dvar
, dargs
, func
)) {
383 data
->error(exp
->token
, PSI_WARNING
, "Unknown variable '%s' in numeric expression",
389 if (!locate_num_exp_constant(exp
, data
->consts
)) {
390 data
->error(exp
->token
, PSI_WARNING
, "Unknown constant '%s' in numeric expression",
401 static inline int validate_set_value_handler(set_value
*set
) {
402 switch (set
->func
->type
) {
404 set
->func
->handler
= psi_to_bool
;
407 set
->func
->handler
= psi_to_int
;
410 set
->func
->handler
= psi_to_double
;
412 case PSI_T_TO_STRING
:
413 set
->func
->handler
= psi_to_string
;
416 set
->func
->handler
= psi_to_array
;
418 case PSI_T_TO_OBJECT
:
419 set
->func
->handler
= psi_to_object
;
422 set
->func
->handler
= psi_to_void
;
425 if (set
->outer
.set
&& set
->outer
.set
->func
->type
== PSI_T_TO_ARRAY
) {
426 set
->func
->handler
= psi_to_recursive
;
427 set
->inner
= set
->outer
.set
->inner
;
428 set
->count
= set
->outer
.set
->count
;
437 static inline void decl_var_arg_v(decl_args
*args
, va_list argp
) {
441 memset(args
, 0, sizeof(*args
));
443 while ((argc
= va_arg(argp
, int))) {
444 argv
= va_arg(argp
, decl_arg
**);
446 add_decl_arg(args
, *argv
++);
450 static inline int validate_set_value_ex(PSI_Data
*data
, set_value
*set
, decl_arg
*ref
, decl_args
*ref_list
) {
453 decl_var
*set_var
= set
->vars
->vars
[0];
455 if (!validate_set_value_handler(set
)) {
456 data
->error(set
->func
->token
, PSI_WARNING
, "Invalid cast '%s' in `set` statement", set
->func
->name
);
460 for (i
= 0; i
< set
->vars
->count
; ++i
) {
461 decl_var
*svar
= set
->vars
->vars
[i
];
462 if (!svar
->arg
&& !locate_decl_var_arg(svar
, ref_list
, NULL
)) {
463 data
->error(svar
->token
, PSI_WARNING
, "Unknown variable '%s' in `set` statement", svar
->name
);
471 ref_type
= real_decl_type(ref
->type
);
474 int is_to_array
= (set
->func
->type
== PSI_T_TO_ARRAY
);
475 int is_pointer_to_struct
= (ref_type
->type
== PSI_T_STRUCT
&& ref
->var
->pointer_level
);
477 if (!is_to_array
&& !is_pointer_to_struct
) {
478 data
->error(set
->func
->token
, E_WARNING
, "Inner `set` statement casts only work with "
479 "to_array() casts on structs or pointers: %s(%s...", set
->func
->name
, set
->vars
->vars
[0]->name
);
484 if (!validate_num_exp(data
, ref_list
, ref
, set
->num
)) {
489 if (ref_type
->type
== PSI_T_STRUCT
) {
490 /* to_array(struct, to_...) */
491 if (!set
->outer
.set
|| set
->outer
.set
->inner
!= set
->inner
) {
492 for (i
= 0; i
< set
->count
; ++i
) {
493 decl_var
*sub_var
= set
->inner
[i
]->vars
->vars
[0];
494 decl_arg
*sub_ref
= locate_struct_member(ref_type
->strct
, sub_var
);
497 if (!validate_set_value_ex(data
, set
->inner
[i
], sub_ref
, ref_type
->strct
->args
)) {
503 } else if (set
->count
== 1) {
504 /* to_array(ptr, to_string(*ptr)) */
505 decl_var
*sub_var
= set
->inner
[0]->vars
->vars
[0];
506 decl_arg
*sub_ref
= locate_decl_var_arg(sub_var
, ref_list
, ref
);
509 if (strcmp(sub_var
->name
, set_var
->name
)) {
510 data
->error(sub_var
->token
, E_WARNING
, "Inner `set` statement casts on pointers must reference the same variable");
513 if (!validate_set_value_ex(data
, set
->inner
[0], sub_ref
, ref_list
)) {
517 } else if (set
->count
> 1) {
518 data
->error(set
->func
->token
, E_WARNING
, "Inner `set` statement casts on pointers may only occur once");
524 static inline int validate_set_value(PSI_Data
*data
, set_value
*set
, ...) {
526 decl_args args
= {0};
530 decl_var_arg_v(&args
, argp
);
533 check
= validate_set_value_ex(data
, set
, NULL
, &args
);
539 static inline decl
*locate_impl_decl(decls
*decls
, return_stmt
*ret
) {
543 for (i
= 0; i
< decls
->count
; ++i
) {
544 if (!strcmp(decls
->list
[i
]->func
->var
->name
, ret
->set
->vars
->vars
[0]->name
)) {
545 ret
->decl
= decls
->list
[i
]->func
;
546 return decls
->list
[i
];
553 static inline int validate_impl_ret_stmt(PSI_Data
*data
, impl
*impl
) {
556 /* we must have exactly one ret stmt delcaring the native func to call */
557 /* and which type cast to apply */
558 if (impl
->stmts
->ret
.count
!= 1) {
559 if (impl
->stmts
->ret
.count
> 1) {
560 data
->error(impl
->stmts
->ret
.list
[1]->token
, PSI_WARNING
,
561 "Too many `return` statements for implmentation %s;"
562 " found %zu, exactly one is needed",
563 impl
->func
->name
, impl
->stmts
->ret
.count
);
565 data
->error(impl
->func
->token
, PSI_WARNING
,
566 "Missing `return` statement for implementation %s",
572 ret
= impl
->stmts
->ret
.list
[0];
574 if (!(impl
->decl
= locate_impl_decl(data
->decls
, ret
))) {
575 data
->error(ret
->token
, PSI_WARNING
,
576 "Missing declaration '%s' for `return` statment for implementation %s",
577 ret
->set
->vars
->vars
[0]->name
, impl
->func
->name
);
581 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)) {
585 impl
->decl
->impl
= impl
;
590 static inline int validate_impl_let_stmts(PSI_Data
*data
, impl
*impl
) {
592 /* we can have multiple let stmts */
594 /* check that we have a decl arg for every let stmt */
595 for (i
= 0; i
< impl
->stmts
->let
.count
; ++i
) {
596 let_stmt
*let
= impl
->stmts
->let
.list
[i
];
600 if (let
->val
&& let
->val
->kind
== PSI_LET_TMP
) {
601 let_var
= let
->val
->data
.var
;
606 if (!locate_decl_var_arg(let_var
, impl
->decl
->args
, impl
->decl
->func
)) {
607 data
->error(let_var
->token
, PSI_WARNING
, "Unknown variable '%s' in `let` statement"
608 " of implementation '%s'", let_var
->name
, impl
->func
->name
);
612 switch (let
->val
->kind
) {
616 /* e.g. let bar = &strval($bar); // decl_arg(char **bar) */
617 /* e.g. let foo = *bar; */
618 let
->var
->pointer_level
= let
->val
->data
.var
->pointer_level
;
619 let
->var
->arg
= init_decl_arg(
621 real_decl_type(let
->val
->data
.var
->arg
->type
)->type
,
622 real_decl_type(let
->val
->data
.var
->arg
->type
)->name
),
625 let
->var
->pointer_level
,
626 let
->var
->array_size
));
629 if (!validate_num_exp(data
, impl
->decl
->args
, impl
->decl
->func
, let
->val
->data
.num
)) {
634 if (!validate_num_exp(data
, impl
->decl
->args
, impl
->decl
->func
, let
->val
->data
.alloc
->nmemb
)) {
637 if (!validate_num_exp(data
, impl
->decl
->args
, impl
->decl
->func
, let
->val
->data
.alloc
->size
)) {
642 if (impl
->func
->args
) {
643 for (j
= 0; j
< impl
->func
->args
->count
; ++j
) {
644 impl_arg
*iarg
= impl
->func
->args
->args
[j
];
646 if (!strcmp(let
->val
->data
.func
->var
->name
, iarg
->var
->name
)) {
647 let
->val
->data
.func
->arg
= iarg
;
654 data
->error(let
->var
->token
, PSI_WARNING
, "Unknown value '$%s' of `let` statement"
655 " for variable '%s' of implementation '%s'",
656 let
->val
->data
.func
->var
->name
, let
->var
->name
, impl
->func
->name
);
663 /* check that we have a let stmt for every decl arg */
664 if (impl
->decl
->args
) for (i
= 0; i
< impl
->decl
->args
->count
; ++i
) {
665 decl_arg
*darg
= impl
->decl
->args
->args
[i
];
668 for (j
= 0; j
< impl
->stmts
->let
.count
; ++j
) {
669 let_stmt
*let
= impl
->stmts
->let
.list
[j
];
671 if (!strcmp(let
->var
->name
, darg
->var
->name
)) {
678 data
->error(impl
->func
->token
, PSI_WARNING
,
679 "Missing `let` statement for arg '%s %.*s%s'"
680 " of declaration '%s' for implementation '%s'",
681 darg
->type
->name
, (int) darg
->var
->pointer_level
, "*****",
682 darg
->var
->name
, impl
->decl
->func
->var
->name
, impl
->func
->name
);
689 static inline int validate_impl_set_stmts(PSI_Data
*data
, impl
*impl
) {
691 /* we can have any count of set stmts; processing out vars */
692 /* check that set stmts reference known variables */
693 for (i
= 0; i
< impl
->stmts
->set
.count
; ++i
) {
694 set_stmt
*set
= impl
->stmts
->set
.list
[i
];
697 if (impl
->func
->args
) for (j
= 0; j
< impl
->func
->args
->count
; ++j
) {
698 impl_arg
*iarg
= impl
->func
->args
->args
[j
];
700 if (!strcmp(set
->var
->name
, iarg
->var
->name
)) {
707 data
->error(set
->var
->token
, PSI_WARNING
, "Unknown variable '$%s' of `set` statement"
708 " of implementation '%s'",
709 set
->var
->name
, impl
->func
->name
);
713 for (j
= 0; j
< set
->val
->vars
->count
; ++j
) {
714 decl_var
*set_var
= set
->val
->vars
->vars
[j
];
717 if (impl
->decl
->args
) {
718 for (k
= 0; k
< impl
->decl
->args
->count
; ++k
) {
719 decl_arg
*set_arg
= impl
->decl
->args
->args
[k
];
721 if (!strcmp(set_var
->name
, set_arg
->var
->name
)) {
723 set_var
->arg
= set_arg
;
724 if (!validate_set_value(data
, set
->val
, 1, &set_arg
, 1, &impl
->decl
->func
, impl
->decl
->args
->count
, impl
->decl
->args
->args
, 0)) {
732 for (k
= 0; k
< impl
->stmts
->let
.count
; ++k
) {
733 let_stmt
*let
= impl
->stmts
->let
.list
[k
];
735 /* check temp vars */
736 if (let
->val
&& let
->val
->kind
== PSI_LET_TMP
) {
737 if (!strcmp(set_var
->name
, let
->var
->name
)) {
739 set_var
->arg
= let
->var
->arg
;
740 if (!validate_set_value(data
, set
->val
, 1, &set_var
->arg
, 1, &impl
->decl
->func
, impl
->decl
->args
->count
, impl
->decl
->args
->args
, 0)) {
750 data
->error(set_var
->token
, PSI_WARNING
, "Unknown value '%s' of `set` statement"
751 " for variable '$%s' of implementation '%s'",
752 set_var
->name
, set
->arg
->var
->name
, impl
->func
->name
);
759 static inline decl
*locate_free_decl(decls
*decls
, free_call
*f
) {
763 for (i
= 0; i
< decls
->count
; ++i
) {
764 if (!strcmp(decls
->list
[i
]->func
->var
->name
, f
->func
)) {
765 f
->decl
= decls
->list
[i
];
766 return decls
->list
[i
];
773 static inline int validate_impl_free_stmts(PSI_Data
*data
, impl
*impl
) {
775 /* we can have any count of free stmts; freeing any out vars */
776 for (i
= 0; i
< impl
->stmts
->fre
.count
; ++i
) {
777 free_stmt
*fre
= impl
->stmts
->fre
.list
[i
];
779 for (j
= 0; j
< fre
->calls
->count
; ++j
) {
780 free_call
*free_call
= fre
->calls
->list
[j
];
782 /* first find the decl of the free func */
783 if (!locate_free_decl(data
->decls
, free_call
)) {
784 data
->error(free_call
->token
, PSI_WARNING
,
785 "Missing declaration '%s' in `free` statement"
786 " of implementation '%s'",
787 free_call
->func
, impl
->func
->name
);
793 /* now check for known vars */
794 for (l
= 0; l
< free_call
->vars
->count
; ++l
) {
796 decl_var
*free_var
= free_call
->vars
->vars
[l
];
798 if (!strcmp(free_var
->name
, impl
->decl
->func
->var
->name
)) {
800 free_var
->arg
= impl
->decl
->func
;
801 } else if (impl
->decl
->args
) {
802 for (k
= 0; k
< impl
->decl
->args
->count
; ++k
) {
803 decl_arg
*free_arg
= impl
->decl
->args
->args
[k
];
805 if (!strcmp(free_var
->name
, free_arg
->var
->name
)) {
807 free_var
->arg
= free_arg
;
814 data
->error(free_var
->token
, PSI_WARNING
,
815 "Unknown variable '%s' of `free` statement"
816 " of implementation '%s'",
817 free_var
->name
, impl
->func
->name
);
825 static inline int validate_impl_stmts(PSI_Data
*data
, impl
*impl
) {
827 data
->error(impl
->func
->token
, PSI_WARNING
,
828 "Missing body for implementation %s!",
833 if (!validate_impl_ret_stmt(data
, impl
)) {
837 if (!validate_impl_let_stmts(data
, impl
)) {
840 if (!validate_impl_set_stmts(data
, impl
)) {
843 if (!validate_impl_free_stmts(data
, impl
)) {
850 static inline int validate_impl_args(PSI_Data
*data
, impl
*impl
) {
854 for (i
= 0; i
< impl
->func
->args
->count
; ++i
) {
855 impl_arg
*iarg
= impl
->func
->args
->args
[i
];
860 data
->error(impl
->func
->token
, PSI_WARNING
,
861 "Non-optional argument %zu '$%s' of implementation '%s'"
862 " follows optional argument",
863 i
+1, iarg
->var
->name
, impl
->func
->name
);
870 static inline int validate_impl(PSI_Data
*data
, impl
*impl
) {
871 if (!validate_impl_args(data
, impl
)) {
874 return validate_impl_stmts(data
, impl
);
877 PSI_Context
*PSI_ContextInit(PSI_Context
*C
, PSI_ContextOps
*ops
, PSI_ContextErrorFunc error
)
881 struct psi_predef_type
*predef_type
;
882 struct psi_predef_const
*predef_const
;
883 struct psi_predef_struct
*predef_struct
;
884 struct psi_predef_decl
*predef_decl
;
887 C
= malloc(sizeof(*C
));
889 memset(C
, 0, sizeof(*C
));
898 ZEND_ASSERT(ops
->call
!= NULL
);
899 ZEND_ASSERT(ops
->compile
!= NULL
);
901 /* build up predefs in a temporary PSI_Data for validation */
902 memset(&T
, 0, sizeof(T
));
905 for (predef_type
= &psi_predef_types
[0]; predef_type
->type_tag
; ++predef_type
) {
906 decl_type
*type
= init_decl_type(predef_type
->type_tag
, predef_type
->type_name
);
907 decl_typedef
*def
= init_decl_typedef(predef_type
->alias
, type
);
909 T
.defs
= add_decl_typedef(T
.defs
, def
);
911 for (predef_const
= &psi_predef_consts
[0]; predef_const
->type_tag
; ++predef_const
) {
912 impl_def_val
*val
= init_impl_def_val(predef_const
->val_type_tag
, predef_const
->val_text
);
913 const_type
*type
= init_const_type(predef_const
->type_tag
, predef_const
->type_name
);
914 constant
*constant
= init_constant(type
, predef_const
->var_name
, val
);
916 T
.consts
= add_constant(T
.consts
, constant
);
918 for (predef_struct
= &psi_predef_structs
[0]; predef_struct
->type_tag
; ++predef_struct
) {
919 struct psi_predef_struct
*member
;
920 decl_args
*dargs
= init_decl_args(NULL
);
921 decl_struct
*dstruct
= init_decl_struct(predef_struct
->var_name
, dargs
);
923 dstruct
->size
= predef_struct
->size
;
924 for (member
= &predef_struct
[1]; member
->type_tag
; ++member
) {
929 type
= init_decl_type(member
->type_tag
, member
->type_name
);
930 dvar
= init_decl_var(member
->var_name
, member
->pointer_level
, member
->array_size
);
931 darg
= init_decl_arg(type
, dvar
);
932 darg
->layout
= init_decl_struct_layout(member
->offset
, member
->size
);
933 dargs
= add_decl_arg(dargs
, darg
);
936 T
.structs
= add_decl_struct(T
.structs
, dstruct
);
937 predef_struct
= member
;
939 for (predef_decl
= &psi_predef_decls
[0]; predef_decl
->type_tag
; ++predef_decl
) {
940 struct psi_predef_decl
*farg
;
941 decl_type
*ftype
= init_decl_type(predef_decl
->type_tag
, predef_decl
->type_name
);
942 decl_var
*fname
= init_decl_var(predef_decl
->var_name
, predef_decl
->pointer_level
, predef_decl
->array_size
);
943 decl_arg
*func
= init_decl_arg(ftype
, fname
);
944 decl_args
*args
= init_decl_args(NULL
);
945 decl
*decl
= init_decl(init_decl_abi("default"), func
, args
);
947 for (farg
= &predef_decl
[1]; farg
->type_tag
; ++farg
) {
948 decl_type
*arg_type
= init_decl_type(farg
->type_tag
, farg
->type_name
);
949 decl_var
*arg_var
= init_decl_var(farg
->var_name
, farg
->pointer_level
, farg
->array_size
);
950 decl_arg
*darg
= init_decl_arg(arg_type
, arg_var
);
951 args
= add_decl_arg(args
, darg
);
954 T
.decls
= add_decl(T
.decls
, decl
);
958 for (predef_decl
= &psi_predef_vararg_decls
[0]; predef_decl
->type_tag
; ++predef_decl
) {
959 struct psi_predef_decl
*farg
;
960 decl_type
*ftype
= init_decl_type(predef_decl
->type_tag
, predef_decl
->type_name
);
961 decl_var
*fname
= init_decl_var(predef_decl
->var_name
, predef_decl
->pointer_level
, predef_decl
->array_size
);
962 decl_arg
*func
= init_decl_arg(ftype
, fname
);
963 decl_args
*args
= init_decl_args(NULL
);
964 decl
*decl
= init_decl(init_decl_abi("default"), func
, args
);
966 for (farg
= &predef_decl
[1]; farg
->type_tag
; ++farg
) {
967 decl_type
*arg_type
= init_decl_type(farg
->type_tag
, farg
->type_name
);
968 decl_var
*arg_var
= init_decl_var(farg
->var_name
, farg
->pointer_level
, farg
->array_size
);
969 decl_arg
*darg
= init_decl_arg(arg_type
, arg_var
);
970 args
= add_decl_arg(args
, darg
);
974 T
.decls
= add_decl(T
.decls
, decl
);
978 for (i
= 0; i
< T
.defs
->count
; ++i
) {
979 decl_typedef
*def
= T
.defs
->list
[i
];
981 if (validate_decl_typedef(&T
, def
)) {
982 C
->defs
= add_decl_typedef(C
->defs
, def
);
986 for (i
= 0; i
< T
.consts
->count
; ++i
) {
987 constant
*constant
= T
.consts
->list
[i
];
989 if (validate_constant(&T
, constant
)) {
990 C
->consts
= add_constant(C
->consts
, constant
);
994 for (i
= 0; i
< T
.structs
->count
; ++i
) {
995 decl_struct
*dstruct
= T
.structs
->list
[i
];
997 if (validate_decl_struct(&T
, dstruct
)) {
998 C
->structs
= add_decl_struct(C
->structs
, dstruct
);
1002 for (i
= 0; i
< T
.decls
->count
; ++i
) {
1003 decl
*decl
= T
.decls
->list
[i
];
1005 if (validate_decl(&T
, NULL
, decl
)) {
1006 C
->decls
= add_decl(C
->decls
, decl
);
1011 C
->data
= malloc(sizeof(*C
->data
));
1012 PSI_DataExchange(C
->data
, &T
);
1017 int PSI_ContextValidate(PSI_Context
*C
, PSI_Parser
*P
)
1020 void *dlopened
= NULL
;
1021 size_t count
= C
->count
++;
1023 C
->data
= realloc(C
->data
, C
->count
* sizeof(*C
->data
));
1024 D
= PSI_DataExchange(&C
->data
[count
], PSI_DATA(P
));
1029 for (i
= 0; i
< D
->defs
->count
; ++i
) {
1030 if (validate_decl_typedef(PSI_DATA(C
), D
->defs
->list
[i
])) {
1031 C
->defs
= add_decl_typedef(C
->defs
, D
->defs
->list
[i
]);
1038 for (i
= 0; i
< D
->structs
->count
; ++i
) {
1039 if (validate_decl_struct(PSI_DATA(C
), D
->structs
->list
[i
])) {
1040 C
->structs
= add_decl_struct(C
->structs
, D
->structs
->list
[i
]);
1047 for (i
= 0; i
< D
->consts
->count
; ++i
) {
1048 if (validate_constant(PSI_DATA(C
), D
->consts
->list
[i
])) {
1049 C
->consts
= add_constant(C
->consts
, D
->consts
->list
[i
]);
1054 if (!validate_lib(D
, &dlopened
)) {
1058 add_decl_lib(&C
->psi
.libs
, dlopened
);
1063 for (i
= 0; i
< D
->decls
->count
; ++i
) {
1064 if (validate_decl(PSI_DATA(C
), dlopened
, D
->decls
->list
[i
])) {
1065 C
->decls
= add_decl(C
->decls
, D
->decls
->list
[i
]);
1072 for (i
= 0; i
< D
->impls
->count
; ++i
) {
1073 if (validate_impl(PSI_DATA(C
), D
->impls
->list
[i
])) {
1074 C
->impls
= add_impl(C
->impls
, D
->impls
->list
[i
]);
1082 static int psi_select_dirent(const struct dirent
*entry
)
1084 #ifndef FNM_CASEFOLD
1085 #define FNM_CASEFOLD 0
1087 return 0 == fnmatch("*.psi", entry
->d_name
, FNM_CASEFOLD
);
1090 void PSI_ContextBuild(PSI_Context
*C
, const char *paths
)
1092 int i
, n
, flags
= psi_check_env("PSI_DEBUG") ? PSI_PARSER_DEBUG
: 0;
1093 char *sep
= NULL
, *cpy
= strdup(paths
), *ptr
= cpy
;
1094 struct dirent
**entries
= NULL
;
1098 sep
= strchr(ptr
, ':');
1104 n
= php_scandir(ptr
, &entries
, psi_select_dirent
, alphasort
);
1107 for (i
= 0; i
< n
; ++i
) {
1108 char psi
[MAXPATHLEN
];
1111 if (MAXPATHLEN
<= slprintf(psi
, MAXPATHLEN
, "%s/%s", ptr
, entries
[i
]->d_name
)) {
1112 C
->error(NULL
, PSI_WARNING
, "Path to PSI file too long: %s/%s",
1113 ptr
, entries
[i
]->d_name
);
1115 if (!PSI_ParserInit(&P
, psi
, C
->error
, flags
)) {
1116 C
->error(NULL
, PSI_WARNING
, "Failed to init PSI parser (%s): %s",
1117 psi
, strerror(errno
));
1121 while (0 < PSI_ParserScan(&P
)) {
1122 PSI_ParserParse(&P
, PSI_TokenAlloc(&P
));
1123 if (P
.num
== PSI_T_EOF
) {
1128 PSI_ParserParse(&P
, NULL
);
1129 PSI_ContextValidate(C
, &P
);
1135 for (i
= 0; i
< n
; ++i
) {
1145 if (PSI_ContextCompile(C
) && SUCCESS
!= zend_register_functions(NULL
, C
->closures
, NULL
, MODULE_PERSISTENT
)) {
1146 C
->error(NULL
, PSI_WARNING
, "Failed to register functions!");
1153 zend_function_entry
*PSI_ContextCompile(PSI_Context
*C
)
1160 zc
.flags
= CONST_PERSISTENT
|CONST_CS
;
1161 zc
.module_number
= EG(current_module
)->module_number
;
1163 for (i
= 0; i
< C
->consts
->count
; ++i
) {
1164 constant
*c
= C
->consts
->list
[i
];
1166 zc
.name
= zend_string_init(c
->name
+ (c
->name
[0] == '\\'), strlen(c
->name
) - (c
->name
[0] == '\\'), 1);
1167 ZVAL_NEW_STR(&zc
.value
, zend_string_init(c
->val
->text
, strlen(c
->val
->text
), 1));
1169 switch (c
->type
->type
) {
1171 convert_to_boolean(&zc
.value
);
1174 convert_to_long(&zc
.value
);
1177 convert_to_double(&zc
.value
);
1180 zend_register_constant(&zc
);
1184 return C
->closures
= C
->ops
->compile(C
);
1188 void PSI_ContextCall(PSI_Context
*C
, decl_callinfo
*decl_call
, impl_vararg
*va
)
1190 C
->ops
->call(C
, decl_call
, va
);
1193 static inline void dump_decl_type(int fd
, decl_type
*t
) {
1203 dprintf(fd
, "%s%s", pre
, t
->name
);
1205 static inline void dump_decl_var(int fd
, decl_var
*v
) {
1206 dprintf(fd
, "%.*s%s", v
->pointer_level
-!!v
->array_size
, "**********", v
->name
);
1207 if (v
->array_size
) {
1208 dprintf(fd
, "[%u]", v
->array_size
);
1211 static inline void dump_decl_arg(int fd
, decl_arg
*a
) {
1212 dump_decl_type(fd
, a
->type
);
1214 dump_decl_var(fd
, a
->var
);
1216 static inline void dump_level(int fd
, unsigned level
) {
1217 dprintf(fd
, "%.*s", level
, "\t\t\t\t\t\t\t\t\t");
1219 static inline void dump_num_exp(int fd
, num_exp
*exp
) {
1223 dprintf(fd
, "%s", exp
->u
.numb
);
1226 dprintf(fd
, "%s", exp
->u
.cnst
->name
);
1229 dump_decl_var(fd
, exp
->u
.dvar
);
1231 EMPTY_SWITCH_DEFAULT_CASE();
1236 switch (exp
->operator) {
1237 case PSI_T_PLUS
: op
= '+'; break;
1238 case PSI_T_MINUS
: op
= '-'; break;
1239 case PSI_T_ASTERISK
:op
= '*'; break;
1240 case PSI_T_SLASH
: op
= '/'; break;
1241 EMPTY_SWITCH_DEFAULT_CASE();
1243 dprintf(fd
, " %c ", op
);
1249 static inline void dump_impl_set_value(int fd
, set_value
*set
, unsigned level
) {
1253 /* only if not directly after `set ...` */
1254 dump_level(fd
, level
);
1257 if (set
->func
->type
== PSI_T_ELLIPSIS
) {
1258 dprintf(fd
, "%s(", set
->outer
.set
->func
->name
);
1260 dprintf(fd
, "%s(", set
->func
->name
);
1263 for (i
= 0; i
< set
->vars
->count
; ++i
) {
1264 decl_var
*svar
= set
->vars
->vars
[i
];
1268 dump_decl_var(fd
, svar
);
1271 if (set
->func
->type
== PSI_T_ELLIPSIS
) {
1272 dprintf(fd
, ", ...");
1276 dump_num_exp(fd
, set
->num
);
1278 if (set
->inner
&& set
->func
->type
!= PSI_T_ELLIPSIS
) {
1280 for (i
= 0; i
< set
->count
; ++i
) {
1281 dump_impl_set_value(fd
, set
->inner
[i
], level
+1);
1283 /* only if inner stmts, i.e. with new lines, were dumped */
1284 dump_level(fd
, level
);
1287 dprintf(fd
, "),\n");
1289 dprintf(fd
, ");\n");
1292 void PSI_ContextDump(PSI_Context
*C
, int fd
)
1297 if (C
->ops
== PSI_Libjit()) {
1298 dprintf(fd
, "// psi.engine=jit\n");
1302 if (C
->ops
== PSI_Libffi()) {
1303 dprintf(fd
, "// psi.engine=ffi\n");
1309 for (i
= 0; i
< C
->defs
->count
; ++i
) {
1310 decl_typedef
*tdef
= C
->defs
->list
[i
];
1312 dprintf(fd
, "typedef ");
1313 dump_decl_type(fd
, tdef
->type
);
1314 dprintf(fd
, " %s%s;\n", tdef
->type
->type
== PSI_T_POINTER
? "*":"",
1321 for (i
= 0; i
< C
->structs
->count
; ++i
) {
1322 decl_struct
*strct
= C
->structs
->list
[i
];
1324 dprintf(fd
, "struct %s::(%zu) {\n", strct
->name
, strct
->size
);
1325 if (strct
->args
) for (j
= 0; j
< strct
->args
->count
; ++j
) {
1326 decl_arg
*sarg
= strct
->args
->args
[j
];
1329 dump_decl_arg(fd
, sarg
);
1330 dprintf(fd
, "::(%zu, %zu);\n", sarg
->layout
->pos
, sarg
->layout
->len
);
1337 for (i
= 0; i
< C
->consts
->count
; ++i
) {
1338 constant
*cnst
= C
->consts
->list
[i
];
1340 dprintf(fd
, "const %s %s = ", cnst
->type
->name
, cnst
->name
);
1341 if (cnst
->val
->type
== PSI_T_QUOTED_STRING
) {
1342 dprintf(fd
, "\"%s\";\n", cnst
->val
->text
);
1344 dprintf(fd
, "%s;\n", cnst
->val
->text
);
1350 for (i
= 0; i
< C
->decls
->count
; ++i
) {
1351 decl
*decl
= C
->decls
->list
[i
];
1353 dprintf(fd
, "%s ", decl
->abi
->convention
);
1354 dump_decl_arg(fd
, decl
->func
);
1357 for (j
= 0; j
< decl
->args
->count
; ++j
) {
1361 dump_decl_arg(fd
, decl
->args
->args
[j
]);
1363 if (decl
->args
->varargs
) {
1364 dprintf(fd
, ", ...");
1367 dprintf(fd
, ");\n");
1372 for (i
= 0; i
< C
->impls
->count
; ++i
) {
1373 impl
*impl
= C
->impls
->list
[i
];
1375 dprintf(fd
, "function %s(", impl
->func
->name
);
1376 if (impl
->func
->args
) {
1377 for (j
= 0; j
< impl
->func
->args
->count
; ++j
) {
1378 impl_arg
*iarg
= impl
->func
->args
->args
[j
];
1380 dprintf(fd
, "%s%s %s$%s",
1383 iarg
->var
->reference
? "&" : "",
1386 dprintf(fd
, " = %s", iarg
->def
->text
);
1389 if (impl
->func
->args
->vararg
.name
) {
1390 impl_arg
*vararg
= impl
->func
->args
->vararg
.name
;
1392 dprintf(fd
, ", %s %s...$%s",
1394 vararg
->var
->reference
? "&" : "",
1398 dprintf(fd
, ") : %s%s {\n",
1399 impl
->func
->return_reference
? "&":"",
1400 impl
->func
->return_type
->name
);
1402 for (j
= 0; j
< impl
->stmts
->let
.count
; ++j
) {
1403 let_stmt
*let
= impl
->stmts
->let
.list
[j
];
1405 dprintf(fd
, "\tlet %s", let
->var
->name
);
1407 dprintf(fd
, " = %s", let
->val
->flags
.one
.is_reference
? "&" : "");
1408 switch (let
->val
->kind
) {
1410 dprintf(fd
, "NULL");
1413 dump_decl_var(fd
, let
->val
->data
.var
);
1415 case PSI_LET_CALLOC
:
1416 dprintf(fd
, "calloc(");
1417 dump_num_exp(fd
, let
->val
->data
.alloc
->nmemb
);
1419 dump_num_exp(fd
, let
->val
->data
.alloc
->size
);
1423 dprintf(fd
, "%s($%s)", let
->val
->data
.func
->name
,
1424 let
->val
->data
.func
->var
->name
);
1426 case PSI_LET_NUMEXP
:
1427 dump_num_exp(fd
, let
->val
->data
.num
);
1430 EMPTY_SWITCH_DEFAULT_CASE();
1435 for (j
= 0; j
< impl
->stmts
->ret
.count
; ++j
) {
1436 return_stmt
*ret
= impl
->stmts
->ret
.list
[j
];
1438 dprintf(fd
, "\treturn ");
1439 dump_impl_set_value(fd
, ret
->set
, 1);
1441 for (j
= 0; j
< impl
->stmts
->set
.count
; ++j
) {
1442 set_stmt
*set
= impl
->stmts
->set
.list
[j
];
1444 dprintf(fd
, "\tset $%s = ", set
->var
->name
);
1445 dump_impl_set_value(fd
, set
->val
, 1);
1447 for (j
= 0; j
< impl
->stmts
->fre
.count
; ++j
) {
1448 free_stmt
*fre
= impl
->stmts
->fre
.list
[j
];
1450 dprintf(fd
, "\tfree ");
1451 for (k
= 0; k
< fre
->calls
->count
; ++k
) {
1452 free_call
*call
= fre
->calls
->list
[k
];
1457 dprintf(fd
, "%s(", call
->func
);
1458 for (l
= 0; l
< call
->vars
->count
; ++l
) {
1459 decl_var
*fvar
= call
->vars
->vars
[l
];
1461 dump_decl_var(fd
, fvar
);
1463 dprintf(fd
, ");\n");
1473 void PSI_ContextDtor(PSI_Context
*C
)
1476 zend_function_entry
*zfe
;
1482 free_decl_libs(&C
->psi
.libs
);
1485 for (i
= 0; i
< C
->count
; ++i
) {
1486 PSI_DataDtor(&C
->data
[i
]);
1492 for (zfe
= C
->closures
; zfe
->fname
; ++zfe
) {
1493 free((void *) zfe
->arg_info
);
1499 if (C
->consts
->list
) {
1500 free(C
->consts
->list
);
1505 if (C
->defs
->list
) {
1506 free(C
->defs
->list
);
1511 if (C
->structs
->list
) {
1512 free(C
->structs
->list
);
1517 if (C
->decls
->list
) {
1518 free(C
->decls
->list
);
1523 if (C
->impls
->list
) {
1524 free(C
->impls
->list
);
1529 memset(C
, 0, sizeof(*C
));
1532 void PSI_ContextFree(PSI_Context
**C
)
1535 PSI_ContextDtor(*C
);