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
->array_size
) {
228 size
= psi_t_size(real_decl_type(darg
->type
)->type
) * darg
->var
->array_size
;
229 } else if (darg
->var
->pointer_level
) {
230 size
= psi_t_size(PSI_T_POINTER
);
232 decl_type
*real
= real_decl_type(darg
->type
);
234 if (real
->type
== PSI_T_STRUCT
) {
235 size
= real
->strct
->size
;
237 size
= psi_t_size(real
->type
);
240 if (darg
->layout
->len
!= size
) {
241 data
->error(darg
->token
, PSI_WARNING
,
242 "Computed length %zu of %s.%s does not match"
243 " pre-defined length %zu of type '%s'",
244 darg
->layout
->len
, s
->name
, darg
->var
->name
, size
,
251 if (darg
->var
->pointer_level
&& (!darg
->var
->array_size
|| darg
->var
->pointer_level
== 1)) {
254 t
= real_decl_type(darg
->type
)->type
;
258 decl_arg
*last
= s
->args
->args
[i
-1];
259 darg
->layout
= init_decl_struct_layout(
260 psi_t_align(t
, last
->layout
->pos
+ last
->layout
->len
),
261 psi_t_size(t
) * darg
->var
->array_size
);
263 darg
->layout
= init_decl_struct_layout(0, psi_t_size(t
));
266 if (s
->size
< darg
->layout
->pos
+ darg
->layout
->len
) {
267 s
->size
= darg
->layout
->pos
+ darg
->layout
->len
;
271 psi_sort_struct_args(s
);
276 static const char * const abi_ccs
[] = {
278 "extern", /* > - all the same */
284 static inline int validate_decl_abi(PSI_Data
*data
, decl_abi
*abi
) {
287 for (i
= 0; i
< sizeof(abi_ccs
)/sizeof(char*); ++i
) {
288 if (strcasecmp(abi
->convention
, abi_ccs
[i
])) {
294 static inline int validate_decl_func(PSI_Data
*data
, void *dl
, decl
*decl
, decl_arg
*func
)
296 struct psi_func_redir
*redir
;
298 if (!strcmp(func
->var
->name
, "dlsym")) {
299 data
->error(func
->token
, PSI_WARNING
, "Cannot dlsym dlsym (sic!)");
303 if (!validate_decl_arg(data
, func
)) {
306 for (redir
= &psi_func_redirs
[0]; redir
->name
; ++redir
) {
307 if (!strcmp(func
->var
->name
, redir
->name
)) {
308 decl
->call
.sym
= redir
->func
;
311 if (!decl
->call
.sym
) {
313 # define RTLD_NEXT ((void *) -1l)
315 decl
->call
.sym
= dlsym(dl
?: RTLD_NEXT
, func
->var
->name
);
316 if (!decl
->call
.sym
) {
317 data
->error(func
->token
, PSI_WARNING
,
318 "Failed to locate symbol '%s': %s",
319 func
->var
->name
, dlerror());
325 static inline int validate_decl(PSI_Data
*data
, void *dl
, decl
*decl
) {
326 if (!validate_decl_abi(data
, decl
->abi
)) {
327 data
->error(decl
->abi
->token
, PSI_WARNING
,
328 "Invalid calling convention: '%s'", decl
->abi
->token
->text
);
331 if (!validate_decl_func(data
, dl
, decl
, decl
->func
)) {
337 for (i
= 0; i
< decl
->args
->count
; ++i
) {
338 if (!validate_decl_arg(data
, decl
->args
->args
[i
])) {
345 static inline decl_arg
*locate_decl_var_arg(decl_var
*var
, decl_args
*args
, decl_arg
*func
) {
348 for (i
= 0; i
< args
->count
; ++i
) {
349 decl_arg
*arg
= args
->args
[i
];
351 if (!strcmp(var
->name
, arg
->var
->name
)) {
352 ZEND_ASSERT(!var
->arg
|| var
->arg
== arg
);
353 return var
->arg
= arg
;
356 if (func
&& !strcmp(var
->name
, func
->var
->name
)) {
357 return var
->arg
= func
;
362 static inline decl_arg
*locate_struct_member(decl_struct
*s
, decl_var
*var
) {
364 return locate_decl_var_arg(var
, s
->args
, NULL
);
369 static inline constant
*locate_num_exp_constant(num_exp
*exp
, constants
*consts
) {
372 for (i
= 0; i
< consts
->count
; ++i
) {
373 constant
*cnst
= consts
->list
[i
];
375 if (!strcmp(cnst
->name
, exp
->u
.numb
)) {
377 return exp
->u
.cnst
= cnst
;
383 static inline int validate_num_exp(PSI_Data
*data
, decl_args
*dargs
, decl_arg
*func
, num_exp
*exp
) {
385 switch (exp
->operator) {
387 exp
->calculator
= psi_calc_add
;
390 exp
->calculator
= psi_calc_sub
;
393 exp
->calculator
= psi_calc_mul
;
396 exp
->calculator
= psi_calc_div
;
398 EMPTY_SWITCH_DEFAULT_CASE();
400 if (!validate_num_exp(data
, dargs
, func
, exp
->operand
)) {
406 if (!locate_decl_var_arg(exp
->u
.dvar
, dargs
, func
)) {
407 data
->error(exp
->token
, PSI_WARNING
, "Unknown variable '%s' in numeric expression",
413 if (!locate_num_exp_constant(exp
, data
->consts
)) {
414 data
->error(exp
->token
, PSI_WARNING
, "Unknown constant '%s' in numeric expression",
425 static inline int validate_set_value_handler(set_value
*set
) {
426 switch (set
->func
->type
) {
428 set
->func
->handler
= psi_to_bool
;
431 set
->func
->handler
= psi_to_int
;
434 set
->func
->handler
= psi_to_double
;
436 case PSI_T_TO_STRING
:
437 set
->func
->handler
= psi_to_string
;
440 set
->func
->handler
= psi_to_array
;
442 case PSI_T_TO_OBJECT
:
443 set
->func
->handler
= psi_to_object
;
446 set
->func
->handler
= psi_to_void
;
449 if (set
->outer
.set
&& set
->outer
.set
->func
->type
== PSI_T_TO_ARRAY
) {
450 set
->func
->handler
= psi_to_recursive
;
451 set
->inner
= set
->outer
.set
->inner
;
452 set
->count
= set
->outer
.set
->count
;
461 static inline void decl_var_arg_v(decl_args
*args
, va_list argp
) {
465 memset(args
, 0, sizeof(*args
));
467 while ((argc
= va_arg(argp
, int))) {
468 argv
= va_arg(argp
, decl_arg
**);
470 add_decl_arg(args
, *argv
++);
474 static inline int validate_set_value_ex(PSI_Data
*data
, set_value
*set
, decl_arg
*ref
, decl_args
*ref_list
) {
477 decl_var
*set_var
= set
->vars
->vars
[0];
479 if (!validate_set_value_handler(set
)) {
480 data
->error(set
->func
->token
, PSI_WARNING
, "Invalid cast '%s' in `set` statement", set
->func
->name
);
484 for (i
= 0; i
< set
->vars
->count
; ++i
) {
485 decl_var
*svar
= set
->vars
->vars
[i
];
486 if (!svar
->arg
&& !locate_decl_var_arg(svar
, ref_list
, NULL
)) {
487 data
->error(svar
->token
, PSI_WARNING
, "Unknown variable '%s' in `set` statement", svar
->name
);
495 ref_type
= real_decl_type(ref
->type
);
498 int is_to_array
= (set
->func
->type
== PSI_T_TO_ARRAY
);
499 int is_pointer_to_struct
= (ref_type
->type
== PSI_T_STRUCT
&& ref
->var
->pointer_level
);
501 if (!is_to_array
&& !is_pointer_to_struct
) {
502 data
->error(set
->func
->token
, E_WARNING
, "Inner `set` statement casts only work with "
503 "to_array() casts on structs or pointers: %s(%s...", set
->func
->name
, set
->vars
->vars
[0]->name
);
508 if (!validate_num_exp(data
, ref_list
, ref
, set
->num
)) {
513 if (ref_type
->type
== PSI_T_STRUCT
) {
514 /* to_array(struct, to_...) */
515 if (!set
->outer
.set
|| set
->outer
.set
->inner
!= set
->inner
) {
516 for (i
= 0; i
< set
->count
; ++i
) {
517 decl_var
*sub_var
= set
->inner
[i
]->vars
->vars
[0];
518 decl_arg
*sub_ref
= locate_struct_member(ref_type
->strct
, sub_var
);
521 if (!validate_set_value_ex(data
, set
->inner
[i
], sub_ref
, ref_type
->strct
->args
)) {
527 } else if (set
->count
== 1) {
528 /* to_array(ptr, to_string(*ptr)) */
529 decl_var
*sub_var
= set
->inner
[0]->vars
->vars
[0];
530 decl_arg
*sub_ref
= locate_decl_var_arg(sub_var
, ref_list
, ref
);
533 if (strcmp(sub_var
->name
, set_var
->name
)) {
534 data
->error(sub_var
->token
, E_WARNING
, "Inner `set` statement casts on pointers must reference the same variable");
537 if (!validate_set_value_ex(data
, set
->inner
[0], sub_ref
, ref_list
)) {
541 } else if (set
->count
> 1) {
542 data
->error(set
->func
->token
, E_WARNING
, "Inner `set` statement casts on pointers may only occur once");
548 static inline int validate_set_value(PSI_Data
*data
, set_value
*set
, ...) {
550 decl_args args
= {0};
554 decl_var_arg_v(&args
, argp
);
557 check
= validate_set_value_ex(data
, set
, NULL
, &args
);
563 static inline decl
*locate_impl_decl(decls
*decls
, return_stmt
*ret
) {
567 for (i
= 0; i
< decls
->count
; ++i
) {
568 if (!strcmp(decls
->list
[i
]->func
->var
->name
, ret
->set
->vars
->vars
[0]->name
)) {
569 ret
->decl
= decls
->list
[i
]->func
;
570 return decls
->list
[i
];
577 static inline int validate_impl_ret_stmt(PSI_Data
*data
, impl
*impl
) {
580 /* we must have exactly one ret stmt delcaring the native func to call */
581 /* and which type cast to apply */
582 if (impl
->stmts
->ret
.count
!= 1) {
583 if (impl
->stmts
->ret
.count
> 1) {
584 data
->error(impl
->stmts
->ret
.list
[1]->token
, PSI_WARNING
,
585 "Too many `return` statements for implmentation %s;"
586 " found %zu, exactly one is needed",
587 impl
->func
->name
, impl
->stmts
->ret
.count
);
589 data
->error(impl
->func
->token
, PSI_WARNING
,
590 "Missing `return` statement for implementation %s",
596 ret
= impl
->stmts
->ret
.list
[0];
598 if (!(impl
->decl
= locate_impl_decl(data
->decls
, ret
))) {
599 data
->error(ret
->token
, PSI_WARNING
,
600 "Missing declaration '%s' for `return` statment for implementation %s",
601 ret
->set
->vars
->vars
[0]->name
, impl
->func
->name
);
605 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)) {
609 impl
->decl
->impl
= impl
;
614 static inline int validate_impl_let_stmts(PSI_Data
*data
, impl
*impl
) {
616 /* we can have multiple let stmts */
618 /* check that we have a decl arg for every let stmt */
619 for (i
= 0; i
< impl
->stmts
->let
.count
; ++i
) {
620 let_stmt
*let
= impl
->stmts
->let
.list
[i
];
624 if (let
->val
&& let
->val
->kind
== PSI_LET_TMP
) {
625 let_var
= let
->val
->data
.var
;
630 if (!locate_decl_var_arg(let_var
, impl
->decl
->args
, impl
->decl
->func
)) {
631 data
->error(let_var
->token
, PSI_WARNING
, "Unknown variable '%s' in `let` statement"
632 " of implementation '%s'", let_var
->name
, impl
->func
->name
);
636 switch (let
->val
->kind
) {
640 /* e.g. let bar = &strval($bar); // decl_arg(char **bar) */
641 /* e.g. let foo = *bar; */
642 let
->var
->pointer_level
= let
->val
->data
.var
->pointer_level
;
643 let
->var
->arg
= init_decl_arg(
645 real_decl_type(let
->val
->data
.var
->arg
->type
)->type
,
646 real_decl_type(let
->val
->data
.var
->arg
->type
)->name
),
649 let
->var
->pointer_level
,
650 let
->var
->array_size
));
653 if (!validate_num_exp(data
, impl
->decl
->args
, impl
->decl
->func
, let
->val
->data
.num
)) {
658 if (!validate_num_exp(data
, impl
->decl
->args
, impl
->decl
->func
, let
->val
->data
.alloc
->nmemb
)) {
661 if (!validate_num_exp(data
, impl
->decl
->args
, impl
->decl
->func
, let
->val
->data
.alloc
->size
)) {
666 if (impl
->func
->args
) {
667 for (j
= 0; j
< impl
->func
->args
->count
; ++j
) {
668 impl_arg
*iarg
= impl
->func
->args
->args
[j
];
670 if (!strcmp(let
->val
->data
.func
->var
->name
, iarg
->var
->name
)) {
671 let
->val
->data
.func
->arg
= iarg
;
678 data
->error(let
->var
->token
, PSI_WARNING
, "Unknown value '$%s' of `let` statement"
679 " for variable '%s' of implementation '%s'",
680 let
->val
->data
.func
->var
->name
, let
->var
->name
, impl
->func
->name
);
687 /* check that we have a let stmt for every decl arg */
688 if (impl
->decl
->args
) for (i
= 0; i
< impl
->decl
->args
->count
; ++i
) {
689 decl_arg
*darg
= impl
->decl
->args
->args
[i
];
692 for (j
= 0; j
< impl
->stmts
->let
.count
; ++j
) {
693 let_stmt
*let
= impl
->stmts
->let
.list
[j
];
695 if (!strcmp(let
->var
->name
, darg
->var
->name
)) {
702 data
->error(impl
->func
->token
, PSI_WARNING
,
703 "Missing `let` statement for arg '%s %.*s%s'"
704 " of declaration '%s' for implementation '%s'",
705 darg
->type
->name
, (int) darg
->var
->pointer_level
, "*****",
706 darg
->var
->name
, impl
->decl
->func
->var
->name
, impl
->func
->name
);
713 static inline int validate_impl_set_stmts(PSI_Data
*data
, impl
*impl
) {
715 /* we can have any count of set stmts; processing out vars */
716 /* check that set stmts reference known variables */
717 for (i
= 0; i
< impl
->stmts
->set
.count
; ++i
) {
718 set_stmt
*set
= impl
->stmts
->set
.list
[i
];
721 if (impl
->func
->args
) for (j
= 0; j
< impl
->func
->args
->count
; ++j
) {
722 impl_arg
*iarg
= impl
->func
->args
->args
[j
];
724 if (!strcmp(set
->var
->name
, iarg
->var
->name
)) {
731 data
->error(set
->var
->token
, PSI_WARNING
, "Unknown variable '$%s' of `set` statement"
732 " of implementation '%s'",
733 set
->var
->name
, impl
->func
->name
);
737 for (j
= 0; j
< set
->val
->vars
->count
; ++j
) {
738 decl_var
*set_var
= set
->val
->vars
->vars
[j
];
741 if (impl
->decl
->args
) {
742 for (k
= 0; k
< impl
->decl
->args
->count
; ++k
) {
743 decl_arg
*set_arg
= impl
->decl
->args
->args
[k
];
745 if (!strcmp(set_var
->name
, set_arg
->var
->name
)) {
747 set_var
->arg
= set_arg
;
748 if (!validate_set_value(data
, set
->val
, 1, &set_arg
, 1, &impl
->decl
->func
, impl
->decl
->args
->count
, impl
->decl
->args
->args
, 0)) {
756 for (k
= 0; k
< impl
->stmts
->let
.count
; ++k
) {
757 let_stmt
*let
= impl
->stmts
->let
.list
[k
];
759 /* check temp vars */
760 if (let
->val
&& let
->val
->kind
== PSI_LET_TMP
) {
761 if (!strcmp(set_var
->name
, let
->var
->name
)) {
763 set_var
->arg
= let
->var
->arg
;
764 if (!validate_set_value(data
, set
->val
, 1, &set_var
->arg
, 1, &impl
->decl
->func
, impl
->decl
->args
->count
, impl
->decl
->args
->args
, 0)) {
774 data
->error(set_var
->token
, PSI_WARNING
, "Unknown value '%s' of `set` statement"
775 " for variable '$%s' of implementation '%s'",
776 set_var
->name
, set
->arg
->var
->name
, impl
->func
->name
);
783 static inline decl
*locate_free_decl(decls
*decls
, free_call
*f
) {
787 for (i
= 0; i
< decls
->count
; ++i
) {
788 if (!strcmp(decls
->list
[i
]->func
->var
->name
, f
->func
)) {
789 f
->decl
= decls
->list
[i
];
790 return decls
->list
[i
];
797 static inline int validate_impl_free_stmts(PSI_Data
*data
, impl
*impl
) {
799 /* we can have any count of free stmts; freeing any out vars */
800 for (i
= 0; i
< impl
->stmts
->fre
.count
; ++i
) {
801 free_stmt
*fre
= impl
->stmts
->fre
.list
[i
];
803 for (j
= 0; j
< fre
->calls
->count
; ++j
) {
804 free_call
*free_call
= fre
->calls
->list
[j
];
806 /* first find the decl of the free func */
807 if (!locate_free_decl(data
->decls
, free_call
)) {
808 data
->error(free_call
->token
, PSI_WARNING
,
809 "Missing declaration '%s' in `free` statement"
810 " of implementation '%s'",
811 free_call
->func
, impl
->func
->name
);
817 /* now check for known vars */
818 for (l
= 0; l
< free_call
->vars
->count
; ++l
) {
820 decl_var
*free_var
= free_call
->vars
->vars
[l
];
822 if (!strcmp(free_var
->name
, impl
->decl
->func
->var
->name
)) {
824 free_var
->arg
= impl
->decl
->func
;
825 } else if (impl
->decl
->args
) {
826 for (k
= 0; k
< impl
->decl
->args
->count
; ++k
) {
827 decl_arg
*free_arg
= impl
->decl
->args
->args
[k
];
829 if (!strcmp(free_var
->name
, free_arg
->var
->name
)) {
831 free_var
->arg
= free_arg
;
838 data
->error(free_var
->token
, PSI_WARNING
,
839 "Unknown variable '%s' of `free` statement"
840 " of implementation '%s'",
841 free_var
->name
, impl
->func
->name
);
849 static inline int validate_impl_stmts(PSI_Data
*data
, impl
*impl
) {
851 data
->error(impl
->func
->token
, PSI_WARNING
,
852 "Missing body for implementation %s!",
857 if (!validate_impl_ret_stmt(data
, impl
)) {
861 if (!validate_impl_let_stmts(data
, impl
)) {
864 if (!validate_impl_set_stmts(data
, impl
)) {
867 if (!validate_impl_free_stmts(data
, impl
)) {
874 static inline int validate_impl_args(PSI_Data
*data
, impl
*impl
) {
878 for (i
= 0; i
< impl
->func
->args
->count
; ++i
) {
879 impl_arg
*iarg
= impl
->func
->args
->args
[i
];
884 data
->error(impl
->func
->token
, PSI_WARNING
,
885 "Non-optional argument %zu '$%s' of implementation '%s'"
886 " follows optional argument",
887 i
+1, iarg
->var
->name
, impl
->func
->name
);
894 static inline int validate_impl(PSI_Data
*data
, impl
*impl
) {
895 if (!validate_impl_args(data
, impl
)) {
898 return validate_impl_stmts(data
, impl
);
901 PSI_Context
*PSI_ContextInit(PSI_Context
*C
, PSI_ContextOps
*ops
, PSI_ContextErrorFunc error
)
905 struct psi_predef_type
*predef_type
;
906 struct psi_predef_const
*predef_const
;
907 struct psi_predef_struct
*predef_struct
;
908 struct psi_predef_decl
*predef_decl
;
911 C
= malloc(sizeof(*C
));
913 memset(C
, 0, sizeof(*C
));
922 ZEND_ASSERT(ops
->call
!= NULL
);
923 ZEND_ASSERT(ops
->compile
!= NULL
);
925 /* build up predefs in a temporary PSI_Data for validation */
926 memset(&T
, 0, sizeof(T
));
929 for (predef_type
= &psi_predef_types
[0]; predef_type
->type_tag
; ++predef_type
) {
930 decl_type
*type
= init_decl_type(predef_type
->type_tag
, predef_type
->type_name
);
931 decl_typedef
*def
= init_decl_typedef(predef_type
->alias
, type
);
933 T
.defs
= add_decl_typedef(T
.defs
, def
);
935 for (predef_const
= &psi_predef_consts
[0]; predef_const
->type_tag
; ++predef_const
) {
936 impl_def_val
*val
= init_impl_def_val(predef_const
->val_type_tag
, predef_const
->val_text
);
937 const_type
*type
= init_const_type(predef_const
->type_tag
, predef_const
->type_name
);
938 constant
*constant
= init_constant(type
, predef_const
->var_name
, val
);
940 T
.consts
= add_constant(T
.consts
, constant
);
942 for (predef_struct
= &psi_predef_structs
[0]; predef_struct
->type_tag
; ++predef_struct
) {
943 struct psi_predef_struct
*member
;
944 decl_args
*dargs
= init_decl_args(NULL
);
945 decl_struct
*dstruct
= init_decl_struct(predef_struct
->var_name
, dargs
);
947 dstruct
->size
= predef_struct
->size
;
948 for (member
= &predef_struct
[1]; member
->type_tag
; ++member
) {
953 type
= init_decl_type(member
->type_tag
, member
->type_name
);
954 dvar
= init_decl_var(member
->var_name
, member
->pointer_level
, member
->array_size
);
955 darg
= init_decl_arg(type
, dvar
);
956 darg
->layout
= init_decl_struct_layout(member
->offset
, member
->size
);
957 dargs
= add_decl_arg(dargs
, darg
);
960 T
.structs
= add_decl_struct(T
.structs
, dstruct
);
961 predef_struct
= member
;
963 for (predef_decl
= &psi_predef_decls
[0]; predef_decl
->type_tag
; ++predef_decl
) {
964 struct psi_predef_decl
*farg
;
965 decl_type
*ftype
= init_decl_type(predef_decl
->type_tag
, predef_decl
->type_name
);
966 decl_var
*fname
= init_decl_var(predef_decl
->var_name
, predef_decl
->pointer_level
, predef_decl
->array_size
);
967 decl_arg
*func
= init_decl_arg(ftype
, fname
);
968 decl_args
*args
= init_decl_args(NULL
);
969 decl
*decl
= init_decl(init_decl_abi("default"), func
, args
);
971 for (farg
= &predef_decl
[1]; farg
->type_tag
; ++farg
) {
972 decl_type
*arg_type
= init_decl_type(farg
->type_tag
, farg
->type_name
);
973 decl_var
*arg_var
= init_decl_var(farg
->var_name
, farg
->pointer_level
, farg
->array_size
);
974 decl_arg
*darg
= init_decl_arg(arg_type
, arg_var
);
975 args
= add_decl_arg(args
, darg
);
978 T
.decls
= add_decl(T
.decls
, decl
);
982 for (predef_decl
= &psi_predef_vararg_decls
[0]; predef_decl
->type_tag
; ++predef_decl
) {
983 struct psi_predef_decl
*farg
;
984 decl_type
*ftype
= init_decl_type(predef_decl
->type_tag
, predef_decl
->type_name
);
985 decl_var
*fname
= init_decl_var(predef_decl
->var_name
, predef_decl
->pointer_level
, predef_decl
->array_size
);
986 decl_arg
*func
= init_decl_arg(ftype
, fname
);
987 decl_args
*args
= init_decl_args(NULL
);
988 decl
*decl
= init_decl(init_decl_abi("default"), func
, args
);
990 for (farg
= &predef_decl
[1]; farg
->type_tag
; ++farg
) {
991 decl_type
*arg_type
= init_decl_type(farg
->type_tag
, farg
->type_name
);
992 decl_var
*arg_var
= init_decl_var(farg
->var_name
, farg
->pointer_level
, farg
->array_size
);
993 decl_arg
*darg
= init_decl_arg(arg_type
, arg_var
);
994 args
= add_decl_arg(args
, darg
);
998 T
.decls
= add_decl(T
.decls
, decl
);
1002 for (i
= 0; i
< T
.defs
->count
; ++i
) {
1003 decl_typedef
*def
= T
.defs
->list
[i
];
1005 if (validate_decl_typedef(&T
, def
)) {
1006 C
->defs
= add_decl_typedef(C
->defs
, def
);
1010 for (i
= 0; i
< T
.consts
->count
; ++i
) {
1011 constant
*constant
= T
.consts
->list
[i
];
1013 if (validate_constant(&T
, constant
)) {
1014 C
->consts
= add_constant(C
->consts
, constant
);
1018 for (i
= 0; i
< T
.structs
->count
; ++i
) {
1019 decl_struct
*dstruct
= T
.structs
->list
[i
];
1021 if (validate_decl_struct(&T
, dstruct
)) {
1022 C
->structs
= add_decl_struct(C
->structs
, dstruct
);
1026 for (i
= 0; i
< T
.decls
->count
; ++i
) {
1027 decl
*decl
= T
.decls
->list
[i
];
1029 if (validate_decl(&T
, NULL
, decl
)) {
1030 C
->decls
= add_decl(C
->decls
, decl
);
1035 C
->data
= malloc(sizeof(*C
->data
));
1036 PSI_DataExchange(C
->data
, &T
);
1041 int PSI_ContextValidate(PSI_Context
*C
, PSI_Parser
*P
)
1044 void *dlopened
= NULL
;
1045 size_t count
= C
->count
++;
1047 C
->data
= realloc(C
->data
, C
->count
* sizeof(*C
->data
));
1048 D
= PSI_DataExchange(&C
->data
[count
], PSI_DATA(P
));
1053 for (i
= 0; i
< D
->defs
->count
; ++i
) {
1054 if (validate_decl_typedef(PSI_DATA(C
), D
->defs
->list
[i
])) {
1055 C
->defs
= add_decl_typedef(C
->defs
, D
->defs
->list
[i
]);
1062 for (i
= 0; i
< D
->structs
->count
; ++i
) {
1063 if (validate_decl_struct(PSI_DATA(C
), D
->structs
->list
[i
])) {
1064 C
->structs
= add_decl_struct(C
->structs
, D
->structs
->list
[i
]);
1071 for (i
= 0; i
< D
->consts
->count
; ++i
) {
1072 if (validate_constant(PSI_DATA(C
), D
->consts
->list
[i
])) {
1073 C
->consts
= add_constant(C
->consts
, D
->consts
->list
[i
]);
1078 if (!validate_lib(D
, &dlopened
)) {
1082 add_decl_lib(&C
->psi
.libs
, dlopened
);
1087 for (i
= 0; i
< D
->decls
->count
; ++i
) {
1088 if (validate_decl(PSI_DATA(C
), dlopened
, D
->decls
->list
[i
])) {
1089 C
->decls
= add_decl(C
->decls
, D
->decls
->list
[i
]);
1096 for (i
= 0; i
< D
->impls
->count
; ++i
) {
1097 if (validate_impl(PSI_DATA(C
), D
->impls
->list
[i
])) {
1098 C
->impls
= add_impl(C
->impls
, D
->impls
->list
[i
]);
1106 static int psi_select_dirent(const struct dirent
*entry
)
1108 #ifndef FNM_CASEFOLD
1109 #define FNM_CASEFOLD 0
1111 return 0 == fnmatch("*.psi", entry
->d_name
, FNM_CASEFOLD
);
1114 void PSI_ContextBuild(PSI_Context
*C
, const char *paths
)
1116 int i
, n
, flags
= psi_check_env("PSI_DEBUG") ? PSI_PARSER_DEBUG
: 0;
1117 char *sep
= NULL
, *cpy
= strdup(paths
), *ptr
= cpy
;
1118 struct dirent
**entries
= NULL
;
1122 sep
= strchr(ptr
, ':');
1128 n
= php_scandir(ptr
, &entries
, psi_select_dirent
, alphasort
);
1131 for (i
= 0; i
< n
; ++i
) {
1132 char psi
[MAXPATHLEN
];
1135 if (MAXPATHLEN
<= slprintf(psi
, MAXPATHLEN
, "%s/%s", ptr
, entries
[i
]->d_name
)) {
1136 C
->error(NULL
, PSI_WARNING
, "Path to PSI file too long: %s/%s",
1137 ptr
, entries
[i
]->d_name
);
1139 if (!PSI_ParserInit(&P
, psi
, C
->error
, flags
)) {
1140 C
->error(NULL
, PSI_WARNING
, "Failed to init PSI parser (%s): %s",
1141 psi
, strerror(errno
));
1145 while (0 < PSI_ParserScan(&P
)) {
1146 PSI_ParserParse(&P
, PSI_TokenAlloc(&P
));
1147 if (P
.num
== PSI_T_EOF
) {
1152 PSI_ParserParse(&P
, NULL
);
1153 PSI_ContextValidate(C
, &P
);
1159 for (i
= 0; i
< n
; ++i
) {
1169 if (PSI_ContextCompile(C
) && SUCCESS
!= zend_register_functions(NULL
, C
->closures
, NULL
, MODULE_PERSISTENT
)) {
1170 C
->error(NULL
, PSI_WARNING
, "Failed to register functions!");
1177 zend_function_entry
*PSI_ContextCompile(PSI_Context
*C
)
1184 zc
.flags
= CONST_PERSISTENT
|CONST_CS
;
1185 zc
.module_number
= EG(current_module
)->module_number
;
1187 for (i
= 0; i
< C
->consts
->count
; ++i
) {
1188 constant
*c
= C
->consts
->list
[i
];
1190 zc
.name
= zend_string_init(c
->name
+ (c
->name
[0] == '\\'), strlen(c
->name
) - (c
->name
[0] == '\\'), 1);
1191 ZVAL_NEW_STR(&zc
.value
, zend_string_init(c
->val
->text
, strlen(c
->val
->text
), 1));
1193 switch (c
->type
->type
) {
1195 convert_to_boolean(&zc
.value
);
1198 convert_to_long(&zc
.value
);
1201 convert_to_double(&zc
.value
);
1204 zend_register_constant(&zc
);
1208 return C
->closures
= C
->ops
->compile(C
);
1212 void PSI_ContextCall(PSI_Context
*C
, decl_callinfo
*decl_call
, impl_vararg
*va
)
1214 C
->ops
->call(C
, decl_call
, va
);
1217 static inline void dump_decl_type(int fd
, decl_type
*t
) {
1227 dprintf(fd
, "%s%s", pre
, t
->name
);
1229 static inline void dump_decl_var(int fd
, decl_var
*v
) {
1230 dprintf(fd
, "%.*s%s", v
->pointer_level
-!!v
->array_size
, "**********", v
->name
);
1231 if (v
->array_size
) {
1232 dprintf(fd
, "[%u]", v
->array_size
);
1235 static inline void dump_decl_arg(int fd
, decl_arg
*a
) {
1236 dump_decl_type(fd
, a
->type
);
1238 dump_decl_var(fd
, a
->var
);
1240 static inline void dump_level(int fd
, unsigned level
) {
1241 dprintf(fd
, "%.*s", level
, "\t\t\t\t\t\t\t\t\t");
1243 static inline void dump_num_exp(int fd
, num_exp
*exp
) {
1247 dprintf(fd
, "%s", exp
->u
.numb
);
1250 dprintf(fd
, "%s", exp
->u
.cnst
->name
);
1253 dump_decl_var(fd
, exp
->u
.dvar
);
1255 EMPTY_SWITCH_DEFAULT_CASE();
1260 switch (exp
->operator) {
1261 case PSI_T_PLUS
: op
= '+'; break;
1262 case PSI_T_MINUS
: op
= '-'; break;
1263 case PSI_T_ASTERISK
:op
= '*'; break;
1264 case PSI_T_SLASH
: op
= '/'; break;
1265 EMPTY_SWITCH_DEFAULT_CASE();
1267 dprintf(fd
, " %c ", op
);
1273 static inline void dump_impl_set_value(int fd
, set_value
*set
, unsigned level
) {
1277 /* only if not directly after `set ...` */
1278 dump_level(fd
, level
);
1281 if (set
->func
->type
== PSI_T_ELLIPSIS
) {
1282 dprintf(fd
, "%s(", set
->outer
.set
->func
->name
);
1284 dprintf(fd
, "%s(", set
->func
->name
);
1287 for (i
= 0; i
< set
->vars
->count
; ++i
) {
1288 decl_var
*svar
= set
->vars
->vars
[i
];
1292 dump_decl_var(fd
, svar
);
1295 if (set
->func
->type
== PSI_T_ELLIPSIS
) {
1296 dprintf(fd
, ", ...");
1300 dump_num_exp(fd
, set
->num
);
1302 if (set
->inner
&& set
->func
->type
!= PSI_T_ELLIPSIS
) {
1304 for (i
= 0; i
< set
->count
; ++i
) {
1305 dump_impl_set_value(fd
, set
->inner
[i
], level
+1);
1307 /* only if inner stmts, i.e. with new lines, were dumped */
1308 dump_level(fd
, level
);
1311 dprintf(fd
, "),\n");
1313 dprintf(fd
, ");\n");
1316 void PSI_ContextDump(PSI_Context
*C
, int fd
)
1321 if (C
->ops
== PSI_Libjit()) {
1322 dprintf(fd
, "// psi.engine=jit\n");
1326 if (C
->ops
== PSI_Libffi()) {
1327 dprintf(fd
, "// psi.engine=ffi\n");
1333 for (i
= 0; i
< C
->defs
->count
; ++i
) {
1334 decl_typedef
*tdef
= C
->defs
->list
[i
];
1336 dprintf(fd
, "typedef ");
1337 dump_decl_type(fd
, tdef
->type
);
1338 dprintf(fd
, " %s%s;\n", tdef
->type
->type
== PSI_T_POINTER
? "*":"",
1345 for (i
= 0; i
< C
->structs
->count
; ++i
) {
1346 decl_struct
*strct
= C
->structs
->list
[i
];
1348 dprintf(fd
, "struct %s::(%zu) {\n", strct
->name
, strct
->size
);
1349 if (strct
->args
) for (j
= 0; j
< strct
->args
->count
; ++j
) {
1350 decl_arg
*sarg
= strct
->args
->args
[j
];
1353 dump_decl_arg(fd
, sarg
);
1354 dprintf(fd
, "::(%zu, %zu);\n", sarg
->layout
->pos
, sarg
->layout
->len
);
1361 for (i
= 0; i
< C
->consts
->count
; ++i
) {
1362 constant
*cnst
= C
->consts
->list
[i
];
1364 dprintf(fd
, "const %s %s = ", cnst
->type
->name
, cnst
->name
);
1365 if (cnst
->val
->type
== PSI_T_QUOTED_STRING
) {
1366 dprintf(fd
, "\"%s\";\n", cnst
->val
->text
);
1368 dprintf(fd
, "%s;\n", cnst
->val
->text
);
1374 for (i
= 0; i
< C
->decls
->count
; ++i
) {
1375 decl
*decl
= C
->decls
->list
[i
];
1377 dprintf(fd
, "%s ", decl
->abi
->convention
);
1378 dump_decl_arg(fd
, decl
->func
);
1381 for (j
= 0; j
< decl
->args
->count
; ++j
) {
1385 dump_decl_arg(fd
, decl
->args
->args
[j
]);
1387 if (decl
->args
->varargs
) {
1388 dprintf(fd
, ", ...");
1391 dprintf(fd
, ");\n");
1396 for (i
= 0; i
< C
->impls
->count
; ++i
) {
1397 impl
*impl
= C
->impls
->list
[i
];
1399 dprintf(fd
, "function %s(", impl
->func
->name
);
1400 if (impl
->func
->args
) {
1401 for (j
= 0; j
< impl
->func
->args
->count
; ++j
) {
1402 impl_arg
*iarg
= impl
->func
->args
->args
[j
];
1404 dprintf(fd
, "%s%s %s$%s",
1407 iarg
->var
->reference
? "&" : "",
1410 dprintf(fd
, " = %s", iarg
->def
->text
);
1413 if (impl
->func
->args
->vararg
.name
) {
1414 impl_arg
*vararg
= impl
->func
->args
->vararg
.name
;
1416 dprintf(fd
, ", %s %s...$%s",
1418 vararg
->var
->reference
? "&" : "",
1422 dprintf(fd
, ") : %s%s {\n",
1423 impl
->func
->return_reference
? "&":"",
1424 impl
->func
->return_type
->name
);
1426 for (j
= 0; j
< impl
->stmts
->let
.count
; ++j
) {
1427 let_stmt
*let
= impl
->stmts
->let
.list
[j
];
1429 dprintf(fd
, "\tlet %s", let
->var
->name
);
1431 dprintf(fd
, " = %s", let
->val
->flags
.one
.is_reference
? "&" : "");
1432 switch (let
->val
->kind
) {
1434 dprintf(fd
, "NULL");
1437 dump_decl_var(fd
, let
->val
->data
.var
);
1439 case PSI_LET_CALLOC
:
1440 dprintf(fd
, "calloc(");
1441 dump_num_exp(fd
, let
->val
->data
.alloc
->nmemb
);
1443 dump_num_exp(fd
, let
->val
->data
.alloc
->size
);
1447 dprintf(fd
, "%s($%s)", let
->val
->data
.func
->name
,
1448 let
->val
->data
.func
->var
->name
);
1450 case PSI_LET_NUMEXP
:
1451 dump_num_exp(fd
, let
->val
->data
.num
);
1454 EMPTY_SWITCH_DEFAULT_CASE();
1459 for (j
= 0; j
< impl
->stmts
->ret
.count
; ++j
) {
1460 return_stmt
*ret
= impl
->stmts
->ret
.list
[j
];
1462 dprintf(fd
, "\treturn ");
1463 dump_impl_set_value(fd
, ret
->set
, 1);
1465 for (j
= 0; j
< impl
->stmts
->set
.count
; ++j
) {
1466 set_stmt
*set
= impl
->stmts
->set
.list
[j
];
1468 dprintf(fd
, "\tset $%s = ", set
->var
->name
);
1469 dump_impl_set_value(fd
, set
->val
, 1);
1471 for (j
= 0; j
< impl
->stmts
->fre
.count
; ++j
) {
1472 free_stmt
*fre
= impl
->stmts
->fre
.list
[j
];
1474 dprintf(fd
, "\tfree ");
1475 for (k
= 0; k
< fre
->calls
->count
; ++k
) {
1476 free_call
*call
= fre
->calls
->list
[k
];
1481 dprintf(fd
, "%s(", call
->func
);
1482 for (l
= 0; l
< call
->vars
->count
; ++l
) {
1483 decl_var
*fvar
= call
->vars
->vars
[l
];
1485 dump_decl_var(fd
, fvar
);
1487 dprintf(fd
, ");\n");
1497 void PSI_ContextDtor(PSI_Context
*C
)
1500 zend_function_entry
*zfe
;
1506 free_decl_libs(&C
->psi
.libs
);
1509 for (i
= 0; i
< C
->count
; ++i
) {
1510 PSI_DataDtor(&C
->data
[i
]);
1516 for (zfe
= C
->closures
; zfe
->fname
; ++zfe
) {
1517 free((void *) zfe
->arg_info
);
1523 if (C
->consts
->list
) {
1524 free(C
->consts
->list
);
1529 if (C
->defs
->list
) {
1530 free(C
->defs
->list
);
1535 if (C
->structs
->list
) {
1536 free(C
->structs
->list
);
1541 if (C
->decls
->list
) {
1542 free(C
->decls
->list
);
1547 if (C
->impls
->list
) {
1548 free(C
->impls
->list
);
1553 memset(C
, 0, sizeof(*C
));
1556 void PSI_ContextFree(PSI_Context
**C
)
1559 PSI_ContextDtor(*C
);