8 #ifdef HAVE_SYS_TYPES_H
9 # include <sys/types.h>
11 #ifdef HAVE_SYS_STAT_H
12 # include <sys/stat.h>
23 # if !defined STDC_HEADERS && defined HAVE_MEMORY_H
31 #ifdef HAVE_INTTYPES_H
32 # include <inttypes.h>
47 #ifdef HAVE_NETINET_IN_H
48 # include <netinet/in.h>
50 #ifdef HAVE_ARPA_NAMESER_H
51 # include <arpa/nameser.h>
59 #ifdef HAVE_SYS_SELECT_H
60 # include <sys/select.h>
62 #ifdef HAVE_SYS_SOCKET_H
63 # include <sys/socket.h>
65 #ifdef HAVE_SYS_TIME_H
66 # include <sys/time.h>
68 #ifdef HAVE_SYS_TIMES_H
69 # include <sys/times.h>
74 #ifdef HAVE_SYS_UTSNAME_H
75 # include <sys/utsname.h>
89 # define NAMLEN(dirent) strlen ((dirent)->d_name)
91 # define dirent direct
92 # define NAMLEN(dirent) ((dirent)->d_namlen)
93 # ifdef HAVE_SYS_NDIR_H
94 # include <sys/ndir.h>
96 # ifdef HAVE_SYS_DIR_H
104 #include <sys/param.h>
109 #include "php_scandir.h"
115 static struct psi_std_type
{
117 const char *type_name
;
118 } psi_std_types
[] = {
119 {PSI_T_FLOAT
, "float"},
120 {PSI_T_DOUBLE
, "double"},
121 {PSI_T_INT8
, "int8_t"},
122 {PSI_T_INT16
, "int16_t"},
123 {PSI_T_INT32
, "int32_t"},
124 {PSI_T_INT64
, "int64_t"},
125 {PSI_T_UINT8
, "uint8_t"},
126 {PSI_T_UINT16
, "uint16_t"},
127 {PSI_T_UINT32
, "uint32_t"},
128 {PSI_T_UINT64
, "uint64_t"},
132 static struct psi_predef_type
{
134 const char *type_name
;
136 } psi_predef_types
[] = {
141 static struct psi_predef_const
{
143 const char *type_name
;
144 const char *var_name
;
145 const char *val_text
;
146 token_t val_type_tag
;
147 } psi_predef_consts
[] = {
154 int psi_glob(const char *pattern
, int flags
,
155 int (*errfunc
) (const char *epath
, int eerrno
),
157 size_t offs
= flags
& GLOB_DOOFFS
? pglob
->gl_offs
: 0;
158 int rv
= glob(pattern
, flags
, errfunc
, pglob
);
159 if (pglob
->gl_pathv
) {
161 pglob
->gl_pathv
[offs
] = NULL
;
167 static struct psi_func_redir
{
170 } psi_func_redirs
[] = {
171 {"glob", (void (*)(void)) psi_glob
},
176 static struct psi_predef_decl
{
178 const char *type_name
;
179 const char *var_name
;
180 size_t pointer_level
;
182 } psi_predef_decls
[] = {
186 static struct psi_predef_decl psi_predef_vararg_decls
[] = {
191 static struct psi_predef_struct
{
193 const char *type_name
;
194 const char *var_name
;
197 size_t pointer_level
;
199 } psi_predef_structs
[] = {
204 static int validate_lib(PSI_Data
*data
, void **dlopened
) {
205 char lib
[MAXPATHLEN
];
206 const char *ptr
= data
->psi
.file
.ln
;
210 /* FIXME: assume stdlib */
212 } else if (!strchr(ptr
, '/')) {
213 len
= snprintf(lib
, MAXPATHLEN
, "lib%s.%s", ptr
, PHP_PSI_SHLIB_SUFFIX
);
214 if (MAXPATHLEN
== len
) {
215 data
->error(NULL
, PSI_WARNING
, "Library name too long: '%s'", ptr
);
220 if (!(*dlopened
= dlopen(ptr
, RTLD_LAZY
|RTLD_LOCAL
))) {
221 data
->error(NULL
, PSI_WARNING
, "Could not open library '%s': %s.",
222 data
->psi
.file
.ln
, dlerror());
228 static inline int locate_decl_type_alias(decl_typedefs
*defs
, decl_type
*type
) {
230 struct psi_std_type
*stdtyp
;
235 for (i
= 0; i
< defs
->count
; ++i
) {
236 decl_typedef
*def
= defs
->list
[i
];
238 if (def
->type
->type
!= type
->type
&& !strcmp(def
->alias
, type
->name
)) {
239 type
->real
= def
->type
;
243 for (stdtyp
= &psi_std_types
[0]; stdtyp
->type_tag
; ++stdtyp
) {
244 if (!strcmp(type
->name
, stdtyp
->type_name
)) {
245 type
->type
= stdtyp
->type_tag
;
252 static inline int locate_decl_type_struct(decl_structs
*structs
, decl_type
*type
) {
258 for (i
= 0; i
< structs
->count
; ++i
) {
259 if (!strcmp(structs
->list
[i
]->name
, type
->name
)) {
260 type
->strct
= structs
->list
[i
];
267 static inline int validate_decl_type(PSI_Data
*data
, decl_type
*type
) {
268 switch (type
->type
) {
270 if (!data
->defs
|| !locate_decl_type_alias(data
->defs
, type
)) {
274 return validate_decl_type(data
, type
->real
);
278 if (!data
->structs
|| !locate_decl_type_struct(data
->structs
, type
)) {
285 static inline int validate_decl_typedef(PSI_Data
*data
, decl_typedef
*def
) {
286 if (!validate_decl_type(data
, def
->type
)) {
287 data
->error(def
->token
, PSI_WARNING
,
288 "Type '%s' cannot be aliased to %s'%s'",
289 def
->type
->name
, def
->type
->type
== PSI_T_STRUCT
?"struct ":"",def
->alias
);
292 /* FIXME: check def->alias */
296 static inline int validate_constant(PSI_Data
*data
, constant
*c
) {
301 static inline int validate_decl_arg(PSI_Data
*data
, decl_arg
*arg
) {
302 if (!validate_decl_type(data
, arg
->type
)) {
303 data
->error(arg
->type
->token
, PSI_WARNING
,
304 "Cannot use '%s'(%d) as type for decl var '%s'",
305 arg
->type
->name
, arg
->type
->type
, arg
->var
->name
);
311 static inline int validate_decl_struct(PSI_Data
*data
, decl_struct
*s
) {
314 for (i
= 0; i
< s
->args
->count
; ++i
) {
315 if (!validate_decl_arg(data
, s
->args
->args
[i
])) {
320 for (i
= 0; i
< s
->args
->count
; ++i
) {
321 decl_arg
*darg
= s
->args
->args
[i
];
323 if (!validate_decl_arg(data
, darg
)) {
327 ZEND_ASSERT(!darg
->var
->arg
|| darg
->var
->arg
== darg
);
328 darg
->var
->arg
= darg
;
333 if (darg
->var
->pointer_level
&& (!darg
->var
->array_size
|| darg
->var
->pointer_level
== 1)) {
336 t
= real_decl_type(darg
->type
)->type
;
340 decl_arg
*last
= s
->args
->args
[i
-1];
341 darg
->layout
= init_decl_struct_layout(
342 psi_t_align(t
, last
->layout
->pos
+ last
->layout
->len
),
343 psi_t_size(t
) * darg
->var
->array_size
);
345 darg
->layout
= init_decl_struct_layout(0, psi_t_size(t
));
348 if (s
->size
< darg
->layout
->pos
+ darg
->layout
->len
) {
349 s
->size
= darg
->layout
->pos
+ darg
->layout
->len
;
355 static const char * const abi_ccs
[] = {
357 "extern", /* > - all the same */
363 static inline int validate_decl_abi(PSI_Data
*data
, decl_abi
*abi
) {
366 for (i
= 0; i
< sizeof(abi_ccs
)/sizeof(char*); ++i
) {
367 if (strcasecmp(abi
->convention
, abi_ccs
[i
])) {
373 static inline int validate_decl_func(PSI_Data
*data
, void *dl
, decl
*decl
, decl_arg
*func
)
375 struct psi_func_redir
*redir
;
377 if (!strcmp(func
->var
->name
, "dlsym")) {
378 data
->error(func
->token
, PSI_WARNING
, "Cannot dlsym dlsym (sic!)");
382 if (!validate_decl_arg(data
, func
)) {
385 for (redir
= &psi_func_redirs
[0]; redir
->name
; ++redir
) {
386 if (!strcmp(func
->var
->name
, redir
->name
)) {
387 decl
->call
.sym
= redir
->func
;
390 if (!decl
->call
.sym
) {
392 # define RTLD_NEXT ((void *) -1l)
394 decl
->call
.sym
= dlsym(dl
?: RTLD_NEXT
, func
->var
->name
);
395 if (!decl
->call
.sym
) {
396 data
->error(func
->token
, PSI_WARNING
,
397 "Failed to locate symbol '%s': %s",
398 func
->var
->name
, dlerror());
404 static inline int validate_decl(PSI_Data
*data
, void *dl
, decl
*decl
) {
405 if (!validate_decl_abi(data
, decl
->abi
)) {
406 data
->error(decl
->abi
->token
, PSI_WARNING
,
407 "Invalid calling convention: '%s'", decl
->abi
->token
->text
);
410 if (!validate_decl_func(data
, dl
, decl
, decl
->func
)) {
416 for (i
= 0; i
< decl
->args
->count
; ++i
) {
417 if (!validate_decl_arg(data
, decl
->args
->args
[i
])) {
424 static inline decl_arg
*locate_decl_var_arg(decl_var
*var
, decl_args
*args
, decl_arg
*func
) {
427 for (i
= 0; i
< args
->count
; ++i
) {
428 decl_arg
*arg
= args
->args
[i
];
430 if (!strcmp(var
->name
, arg
->var
->name
)) {
431 ZEND_ASSERT(!var
->arg
|| var
->arg
== arg
);
432 return var
->arg
= arg
;
435 if (func
&& !strcmp(var
->name
, func
->var
->name
)) {
436 return var
->arg
= func
;
441 static inline decl_arg
*locate_struct_member(decl_struct
*s
, decl_var
*var
) {
443 return locate_decl_var_arg(var
, s
->args
, NULL
);
448 static inline constant
*locate_num_exp_constant(num_exp
*exp
, constants
*consts
) {
451 for (i
= 0; i
< consts
->count
; ++i
) {
452 constant
*cnst
= consts
->list
[i
];
454 if (!strcmp(cnst
->name
, exp
->u
.numb
)) {
456 return exp
->u
.cnst
= cnst
;
462 static inline int validate_num_exp(PSI_Data
*data
, decl_args
*dargs
, decl_arg
*func
, num_exp
*exp
) {
464 switch (exp
->operator) {
466 exp
->calculator
= psi_calc_add
;
469 exp
->calculator
= psi_calc_sub
;
472 exp
->calculator
= psi_calc_mul
;
475 exp
->calculator
= psi_calc_div
;
477 EMPTY_SWITCH_DEFAULT_CASE();
479 if (!validate_num_exp(data
, dargs
, func
, exp
->operand
)) {
485 if (!locate_decl_var_arg(exp
->u
.dvar
, dargs
, func
)) {
486 data
->error(exp
->token
, PSI_WARNING
, "Unknown variable '%s' in numeric expression",
492 if (!locate_num_exp_constant(exp
, data
->consts
)) {
493 data
->error(exp
->token
, PSI_WARNING
, "Unknown constant '%s' in numeric expression",
504 static inline int validate_set_value_handler(set_value
*set
) {
505 switch (set
->func
->type
) {
507 set
->func
->handler
= psi_to_bool
;
510 set
->func
->handler
= psi_to_int
;
513 set
->func
->handler
= psi_to_double
;
515 case PSI_T_TO_STRING
:
516 set
->func
->handler
= psi_to_string
;
519 set
->func
->handler
= psi_to_array
;
521 case PSI_T_TO_OBJECT
:
522 set
->func
->handler
= psi_to_object
;
525 set
->func
->handler
= psi_to_void
;
532 static inline void decl_var_arg_v(decl_args
*args
, va_list argp
) {
536 memset(args
, 0, sizeof(*args
));
538 while ((argc
= va_arg(argp
, int))) {
539 argv
= va_arg(argp
, decl_arg
**);
541 add_decl_arg(args
, *argv
++);
545 static inline int validate_set_value_ex(PSI_Data
*data
, set_value
*set
, decl_arg
*ref
, decl_args
*ref_list
) {
548 decl_var
*set_var
= set
->vars
->vars
[0];
550 if (!validate_set_value_handler(set
)) {
551 data
->error(set
->func
->token
, PSI_WARNING
, "Invalid cast '%s'", set
->func
->name
);
555 for (i
= 0; i
< set
->vars
->count
; ++i
) {
556 decl_var
*svar
= set
->vars
->vars
[i
];
557 if (!svar
->arg
&& !locate_decl_var_arg(svar
, ref_list
, NULL
)) {
558 data
->error(svar
->token
, PSI_WARNING
, "Unknown variable '%s'", svar
->name
);
566 ref_type
= real_decl_type(ref
->type
);
569 int is_to_array
= (set
->func
->type
== PSI_T_TO_ARRAY
);
570 int is_pointer_to_struct
= (ref_type
->type
== PSI_T_STRUCT
&& ref
->var
->pointer_level
);
572 if (!is_to_array
&& !is_pointer_to_struct
) {
573 data
->error(set
->func
->token
, E_WARNING
, "Inner `set` statement casts only work with "
574 "to_array() casts on structs or pointers: %s(%s...", set
->func
->name
, set
->vars
->vars
[0]->name
);
579 if (!validate_num_exp(data
, ref_list
, ref
, set
->num
)) {
584 if (ref_type
->type
== PSI_T_STRUCT
) {
585 /* to_array(struct, to_...) */
586 for (i
= 0; i
< set
->count
; ++i
) {
587 decl_var
*sub_var
= set
->inner
[i
]->vars
->vars
[0];
588 decl_arg
*sub_ref
= locate_struct_member(ref_type
->strct
, sub_var
);
590 set
->inner
[i
]->outer
.set
= set
;
592 if (!validate_set_value_ex(data
, set
->inner
[i
], sub_ref
, ref_type
->strct
->args
)) {
597 } else if (set
->count
== 1) {
598 /* to_array(ptr, to_string(*ptr)) */
599 decl_var
*sub_var
= set
->inner
[0]->vars
->vars
[0];
600 decl_arg
*sub_ref
= locate_decl_var_arg(sub_var
, ref_list
, ref
);
602 set
->inner
[0]->outer
.set
= set
;
604 if (strcmp(sub_var
->name
, set_var
->name
)) {
605 data
->error(sub_var
->token
, E_WARNING
, "Inner `set` statement casts on pointers must reference the same variable");
608 if (!validate_set_value_ex(data
, set
->inner
[0], sub_ref
, ref_list
)) {
612 } else if (set
->count
> 1) {
613 data
->error(set
->func
->token
, E_WARNING
, "Inner `set` statement casts on pointers may only occur once");
619 static inline int validate_set_value(PSI_Data
*data
, set_value
*set
, ...) {
621 decl_args args
= {0};
625 decl_var_arg_v(&args
, argp
);
628 check
= validate_set_value_ex(data
, set
, NULL
, &args
);
634 static inline decl
*locate_impl_decl(decls
*decls
, return_stmt
*ret
) {
638 for (i
= 0; i
< decls
->count
; ++i
) {
639 if (!strcmp(decls
->list
[i
]->func
->var
->name
, ret
->set
->vars
->vars
[0]->name
)) {
640 ret
->decl
= decls
->list
[i
]->func
;
641 return decls
->list
[i
];
648 static inline int validate_impl_ret_stmt(PSI_Data
*data
, impl
*impl
) {
651 /* we must have exactly one ret stmt delcaring the native func to call */
652 /* and which type cast to apply */
653 if (impl
->stmts
->ret
.count
!= 1) {
654 if (impl
->stmts
->ret
.count
> 1) {
655 data
->error(impl
->stmts
->ret
.list
[1]->token
, PSI_WARNING
,
656 "Too many `return` statements for implmentation %s;"
657 " found %zu, exactly one is needed",
658 impl
->func
->name
, impl
->stmts
->ret
.count
);
660 data
->error(impl
->func
->token
, PSI_WARNING
,
661 "Missing `return` statement for implementation %s",
667 ret
= impl
->stmts
->ret
.list
[0];
669 if (!(impl
->decl
= locate_impl_decl(data
->decls
, ret
))) {
670 data
->error(ret
->token
, PSI_WARNING
,
671 "Missing declaration '%s' for `return` statment for implementation %s",
672 ret
->set
->vars
->vars
[0]->name
, impl
->func
->name
);
676 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)) {
680 impl
->decl
->impl
= impl
;
685 static inline int validate_impl_let_stmts(PSI_Data
*data
, impl
*impl
) {
687 /* we can have multiple let stmts */
689 /* check that we have a decl arg for every let stmt */
690 for (i
= 0; i
< impl
->stmts
->let
.count
; ++i
) {
691 let_stmt
*let
= impl
->stmts
->let
.list
[i
];
695 if (let
->val
&& let
->val
->kind
== PSI_LET_TMP
) {
696 let_var
= let
->val
->data
.var
;
701 if (!locate_decl_var_arg(let_var
, impl
->decl
->args
, impl
->decl
->func
)) {
702 data
->error(let_var
->token
, PSI_WARNING
, "Unknown variable '%s' in `let` statement"
703 " of implementation '%s'", let_var
->name
, impl
->func
->name
);
707 switch (let
->val
->kind
) {
711 /* e.g. let bar = &strval($bar); // decl_arg(char **bar) */
712 /* e.g. let foo = *bar; */
713 let
->var
->pointer_level
= let
->val
->data
.var
->pointer_level
;
714 let
->var
->arg
= init_decl_arg(
716 real_decl_type(let
->val
->data
.var
->arg
->type
)->type
,
717 real_decl_type(let
->val
->data
.var
->arg
->type
)->name
),
720 let
->var
->pointer_level
,
721 let
->var
->array_size
));
724 if (!validate_num_exp(data
, impl
->decl
->args
, impl
->decl
->func
, let
->val
->data
.num
)) {
729 if (!validate_num_exp(data
, impl
->decl
->args
, impl
->decl
->func
, let
->val
->data
.alloc
->nmemb
)) {
732 if (!validate_num_exp(data
, impl
->decl
->args
, impl
->decl
->func
, let
->val
->data
.alloc
->size
)) {
737 if (impl
->func
->args
) {
738 for (j
= 0; j
< impl
->func
->args
->count
; ++j
) {
739 impl_arg
*iarg
= impl
->func
->args
->args
[j
];
741 if (!strcmp(let
->val
->data
.func
->var
->name
, iarg
->var
->name
)) {
742 let
->val
->data
.func
->arg
= iarg
;
749 data
->error(let
->var
->token
, PSI_WARNING
, "Unknown value '$%s' of `let` statement"
750 " for variable '%s' of implementation '%s'",
751 let
->val
->data
.func
->var
->name
, let
->var
->name
, impl
->func
->name
);
758 /* check that we have a let stmt for every decl arg */
759 if (impl
->decl
->args
) for (i
= 0; i
< impl
->decl
->args
->count
; ++i
) {
760 decl_arg
*darg
= impl
->decl
->args
->args
[i
];
763 for (j
= 0; j
< impl
->stmts
->let
.count
; ++j
) {
764 let_stmt
*let
= impl
->stmts
->let
.list
[j
];
766 if (!strcmp(let
->var
->name
, darg
->var
->name
)) {
773 data
->error(impl
->func
->token
, PSI_WARNING
,
774 "Missing `let` statement for arg '%s %.*s%s'"
775 " of declaration '%s' for implementation '%s'",
776 darg
->type
->name
, (int) darg
->var
->pointer_level
, "*****",
777 darg
->var
->name
, impl
->decl
->func
->var
->name
, impl
->func
->name
);
784 static inline int validate_impl_set_stmts(PSI_Data
*data
, impl
*impl
) {
786 /* we can have any count of set stmts; processing out vars */
787 /* check that set stmts reference known variables */
788 for (i
= 0; i
< impl
->stmts
->set
.count
; ++i
) {
789 set_stmt
*set
= impl
->stmts
->set
.list
[i
];
792 if (impl
->func
->args
) for (j
= 0; j
< impl
->func
->args
->count
; ++j
) {
793 impl_arg
*iarg
= impl
->func
->args
->args
[j
];
795 if (!strcmp(set
->var
->name
, iarg
->var
->name
)) {
802 data
->error(set
->var
->token
, PSI_WARNING
, "Unknown variable '$%s' of `set` statement"
803 " of implementation '%s'",
804 set
->var
->name
, impl
->func
->name
);
808 for (j
= 0; j
< set
->val
->vars
->count
; ++j
) {
809 decl_var
*set_var
= set
->val
->vars
->vars
[j
];
812 if (impl
->decl
->args
) {
813 for (k
= 0; k
< impl
->decl
->args
->count
; ++k
) {
814 decl_arg
*set_arg
= impl
->decl
->args
->args
[k
];
816 if (!strcmp(set_var
->name
, set_arg
->var
->name
)) {
818 set_var
->arg
= set_arg
;
819 if (!validate_set_value(data
, set
->val
, 1, &set_arg
, 1, &impl
->decl
->func
, impl
->decl
->args
->count
, impl
->decl
->args
->args
, 0)) {
827 for (k
= 0; k
< impl
->stmts
->let
.count
; ++k
) {
828 let_stmt
*let
= impl
->stmts
->let
.list
[k
];
830 /* check temp vars */
831 if (let
->val
&& let
->val
->kind
== PSI_LET_TMP
) {
832 if (!strcmp(set_var
->name
, let
->var
->name
)) {
834 set_var
->arg
= let
->var
->arg
;
835 if (!validate_set_value(data
, set
->val
, 1, &set_var
->arg
, 1, &impl
->decl
->func
, impl
->decl
->args
->count
, impl
->decl
->args
->args
, 0)) {
845 data
->error(set_var
->token
, PSI_WARNING
, "Unknown value '%s' of `set` statement"
846 " for variable '$%s' of implementation '%s'",
847 set_var
->name
, set
->arg
->var
->name
, impl
->func
->name
);
854 static inline decl
*locate_free_decl(decls
*decls
, free_call
*f
) {
858 for (i
= 0; i
< decls
->count
; ++i
) {
859 if (!strcmp(decls
->list
[i
]->func
->var
->name
, f
->func
)) {
860 f
->decl
= decls
->list
[i
];
861 return decls
->list
[i
];
868 static inline int validate_impl_free_stmts(PSI_Data
*data
, impl
*impl
) {
870 /* we can have any count of free stmts; freeing any out vars */
871 for (i
= 0; i
< impl
->stmts
->fre
.count
; ++i
) {
872 free_stmt
*fre
= impl
->stmts
->fre
.list
[i
];
874 for (j
= 0; j
< fre
->calls
->count
; ++j
) {
875 free_call
*free_call
= fre
->calls
->list
[j
];
877 /* first find the decl of the free func */
878 if (!locate_free_decl(data
->decls
, free_call
)) {
879 data
->error(free_call
->token
, PSI_WARNING
,
880 "Missing declaration '%s' in `free` statement"
881 " of implementation '%s'",
882 free_call
->func
, impl
->func
->name
);
885 if (!impl
->decl
->args
) {
886 data
->error(free_call
->token
, PSI_WARNING
,
887 "Declaration '%s' of implementation '%s'"
888 " does not have any arguments to free",
889 impl
->decl
->func
->var
->name
, impl
->func
->name
);
892 /* now check for known vars */
893 for (l
= 0; l
< free_call
->vars
->count
; ++l
) {
895 decl_var
*free_var
= free_call
->vars
->vars
[l
];
897 for (k
= 0; k
< impl
->decl
->args
->count
; ++k
) {
898 decl_arg
*free_arg
= impl
->decl
->args
->args
[k
];
900 if (!strcmp(free_var
->name
, free_arg
->var
->name
)) {
902 free_var
->arg
= free_arg
;
908 data
->error(free_var
->token
, PSI_WARNING
,
909 "Unknown variable '%s' of `free` statement"
910 " of implementation '%s'",
911 free_var
->name
, impl
->func
->name
);
919 static inline int validate_impl_stmts(PSI_Data
*data
, impl
*impl
) {
921 data
->error(impl
->func
->token
, PSI_WARNING
,
922 "Missing body for implementation %s!",
927 if (!validate_impl_ret_stmt(data
, impl
)) {
931 if (!validate_impl_let_stmts(data
, impl
)) {
934 if (!validate_impl_set_stmts(data
, impl
)) {
937 if (!validate_impl_free_stmts(data
, impl
)) {
944 PSI_Context
*PSI_ContextInit(PSI_Context
*C
, PSI_ContextOps
*ops
, PSI_ContextErrorFunc error
)
948 struct psi_predef_type
*predef_type
;
949 struct psi_predef_const
*predef_const
;
950 struct psi_predef_struct
*predef_struct
;
951 struct psi_predef_decl
*predef_decl
;
954 C
= malloc(sizeof(*C
));
956 memset(C
, 0, sizeof(*C
));
965 ZEND_ASSERT(ops
->call
!= NULL
);
966 ZEND_ASSERT(ops
->compile
!= NULL
);
968 /* build up predefs in a temporary PSI_Data for validation */
969 memset(&T
, 0, sizeof(T
));
972 for (predef_type
= &psi_predef_types
[0]; predef_type
->type_tag
; ++predef_type
) {
973 decl_type
*type
= init_decl_type(predef_type
->type_tag
, predef_type
->type_name
);
974 decl_typedef
*def
= init_decl_typedef(predef_type
->alias
, type
);
976 T
.defs
= add_decl_typedef(T
.defs
, def
);
978 for (predef_const
= &psi_predef_consts
[0]; predef_const
->type_tag
; ++predef_const
) {
979 impl_def_val
*val
= init_impl_def_val(predef_const
->val_type_tag
, predef_const
->val_text
);
980 const_type
*type
= init_const_type(predef_const
->type_tag
, predef_const
->type_name
);
981 constant
*constant
= init_constant(type
, predef_const
->var_name
, val
);
983 T
.consts
= add_constant(T
.consts
, constant
);
985 for (predef_struct
= &psi_predef_structs
[0]; predef_struct
->type_tag
; ++predef_struct
) {
986 struct psi_predef_struct
*member
;
987 decl_args
*dargs
= init_decl_args(NULL
);
988 decl_struct
*dstruct
= init_decl_struct(predef_struct
->var_name
, dargs
);
990 dstruct
->size
= predef_struct
->size
;
991 for (member
= &predef_struct
[1]; member
->type_tag
; ++member
) {
996 type
= init_decl_type(member
->type_tag
, member
->type_name
);
997 dvar
= init_decl_var(member
->var_name
, member
->pointer_level
, member
->array_size
);
998 darg
= init_decl_arg(type
, dvar
);
999 darg
->layout
= init_decl_struct_layout(member
->offset
, member
->size
);
1000 dargs
= add_decl_arg(dargs
, darg
);
1003 T
.structs
= add_decl_struct(T
.structs
, dstruct
);
1004 predef_struct
= member
;
1006 for (predef_decl
= &psi_predef_decls
[0]; predef_decl
->type_tag
; ++predef_decl
) {
1007 struct psi_predef_decl
*farg
;
1008 decl_type
*ftype
= init_decl_type(predef_decl
->type_tag
, predef_decl
->type_name
);
1009 decl_var
*fname
= init_decl_var(predef_decl
->var_name
, predef_decl
->pointer_level
, predef_decl
->array_size
);
1010 decl_arg
*func
= init_decl_arg(ftype
, fname
);
1011 decl_args
*args
= init_decl_args(NULL
);
1012 decl
*decl
= init_decl(init_decl_abi("default"), func
, args
);
1014 for (farg
= &predef_decl
[1]; farg
->type_tag
; ++farg
) {
1015 decl_type
*arg_type
= init_decl_type(farg
->type_tag
, farg
->type_name
);
1016 decl_var
*arg_var
= init_decl_var(farg
->var_name
, farg
->pointer_level
, farg
->array_size
);
1017 decl_arg
*darg
= init_decl_arg(arg_type
, arg_var
);
1018 args
= add_decl_arg(args
, darg
);
1021 T
.decls
= add_decl(T
.decls
, decl
);
1025 for (predef_decl
= &psi_predef_vararg_decls
[0]; predef_decl
->type_tag
; ++predef_decl
) {
1026 struct psi_predef_decl
*farg
;
1027 decl_type
*ftype
= init_decl_type(predef_decl
->type_tag
, predef_decl
->type_name
);
1028 decl_var
*fname
= init_decl_var(predef_decl
->var_name
, predef_decl
->pointer_level
, predef_decl
->array_size
);
1029 decl_arg
*func
= init_decl_arg(ftype
, fname
);
1030 decl_args
*args
= init_decl_args(NULL
);
1031 decl
*decl
= init_decl(init_decl_abi("default"), func
, args
);
1033 for (farg
= &predef_decl
[1]; farg
->type_tag
; ++farg
) {
1034 decl_type
*arg_type
= init_decl_type(farg
->type_tag
, farg
->type_name
);
1035 decl_var
*arg_var
= init_decl_var(farg
->var_name
, farg
->pointer_level
, farg
->array_size
);
1036 decl_arg
*darg
= init_decl_arg(arg_type
, arg_var
);
1037 args
= add_decl_arg(args
, darg
);
1041 T
.decls
= add_decl(T
.decls
, decl
);
1045 for (i
= 0; i
< T
.defs
->count
; ++i
) {
1046 decl_typedef
*def
= T
.defs
->list
[i
];
1048 if (validate_decl_typedef(&T
, def
)) {
1049 C
->defs
= add_decl_typedef(C
->defs
, def
);
1053 for (i
= 0; i
< T
.consts
->count
; ++i
) {
1054 constant
*constant
= T
.consts
->list
[i
];
1056 if (validate_constant(&T
, constant
)) {
1057 C
->consts
= add_constant(C
->consts
, constant
);
1061 for (i
= 0; i
< T
.structs
->count
; ++i
) {
1062 decl_struct
*dstruct
= T
.structs
->list
[i
];
1064 if (validate_decl_struct(&T
, dstruct
)) {
1065 C
->structs
= add_decl_struct(C
->structs
, dstruct
);
1069 for (i
= 0; i
< T
.decls
->count
; ++i
) {
1070 decl
*decl
= T
.decls
->list
[i
];
1072 if (validate_decl(&T
, NULL
, decl
)) {
1073 C
->decls
= add_decl(C
->decls
, decl
);
1078 C
->data
= malloc(sizeof(*C
->data
));
1079 PSI_DataExchange(C
->data
, &T
);
1084 int PSI_ContextValidate(PSI_Context
*C
, PSI_Parser
*P
)
1087 void *dlopened
= NULL
;
1088 size_t count
= C
->count
++;
1090 C
->data
= realloc(C
->data
, C
->count
* sizeof(*C
->data
));
1091 D
= PSI_DataExchange(&C
->data
[count
], PSI_DATA(P
));
1096 for (i
= 0; i
< D
->defs
->count
; ++i
) {
1097 if (validate_decl_typedef(PSI_DATA(C
), D
->defs
->list
[i
])) {
1098 C
->defs
= add_decl_typedef(C
->defs
, D
->defs
->list
[i
]);
1105 for (i
= 0; i
< D
->structs
->count
; ++i
) {
1106 if (validate_decl_struct(PSI_DATA(C
), D
->structs
->list
[i
])) {
1107 C
->structs
= add_decl_struct(C
->structs
, D
->structs
->list
[i
]);
1114 for (i
= 0; i
< D
->consts
->count
; ++i
) {
1115 if (validate_constant(PSI_DATA(C
), D
->consts
->list
[i
])) {
1116 C
->consts
= add_constant(C
->consts
, D
->consts
->list
[i
]);
1121 if (!validate_lib(D
, &dlopened
)) {
1125 add_decl_lib(&C
->psi
.libs
, dlopened
);
1130 for (i
= 0; i
< D
->decls
->count
; ++i
) {
1131 if (validate_decl(PSI_DATA(C
), dlopened
, D
->decls
->list
[i
])) {
1132 C
->decls
= add_decl(C
->decls
, D
->decls
->list
[i
]);
1139 for (i
= 0; i
< D
->impls
->count
; ++i
) {
1140 if (validate_impl_stmts(PSI_DATA(C
), D
->impls
->list
[i
])) {
1141 C
->impls
= add_impl(C
->impls
, D
->impls
->list
[i
]);
1149 static int psi_select_dirent(const struct dirent
*entry
)
1151 #ifndef FNM_CASEFOLD
1152 #define FNM_CASEFOLD 0
1154 return 0 == fnmatch("*.psi", entry
->d_name
, FNM_CASEFOLD
);
1157 void PSI_ContextBuild(PSI_Context
*C
, const char *paths
)
1159 int i
, n
, flags
= psi_check_env("PSI_DEBUG") ? PSI_PARSER_DEBUG
: 0;
1160 char *sep
= NULL
, *cpy
= strdup(paths
), *ptr
= cpy
;
1161 struct dirent
**entries
= NULL
;
1165 sep
= strchr(ptr
, ':');
1171 n
= php_scandir(ptr
, &entries
, psi_select_dirent
, alphasort
);
1174 for (i
= 0; i
< n
; ++i
) {
1175 char psi
[MAXPATHLEN
];
1178 if (MAXPATHLEN
<= slprintf(psi
, MAXPATHLEN
, "%s/%s", ptr
, entries
[i
]->d_name
)) {
1179 C
->error(NULL
, PSI_WARNING
, "Path to PSI file too long: %s/%s",
1180 ptr
, entries
[i
]->d_name
);
1182 if (!PSI_ParserInit(&P
, psi
, C
->error
, flags
)) {
1183 C
->error(NULL
, PSI_WARNING
, "Failed to init PSI parser (%s): %s",
1184 psi
, strerror(errno
));
1188 while (0 < PSI_ParserScan(&P
)) {
1189 PSI_ParserParse(&P
, PSI_TokenAlloc(&P
));
1190 if (P
.num
== PSI_T_EOF
) {
1195 PSI_ParserParse(&P
, NULL
);
1196 PSI_ContextValidate(C
, &P
);
1202 for (i
= 0; i
< n
; ++i
) {
1212 if (PSI_ContextCompile(C
) && SUCCESS
!= zend_register_functions(NULL
, C
->closures
, NULL
, MODULE_PERSISTENT
)) {
1213 C
->error(NULL
, PSI_WARNING
, "Failed to register functions!");
1220 zend_function_entry
*PSI_ContextCompile(PSI_Context
*C
)
1227 zc
.flags
= CONST_PERSISTENT
|CONST_CS
;
1228 zc
.module_number
= EG(current_module
)->module_number
;
1230 for (i
= 0; i
< C
->consts
->count
; ++i
) {
1231 constant
*c
= C
->consts
->list
[i
];
1233 zc
.name
= zend_string_init(c
->name
+ (c
->name
[0] == '\\'), strlen(c
->name
) - (c
->name
[0] == '\\'), 1);
1234 ZVAL_NEW_STR(&zc
.value
, zend_string_init(c
->val
->text
, strlen(c
->val
->text
), 1));
1236 switch (c
->type
->type
) {
1238 convert_to_boolean(&zc
.value
);
1241 convert_to_long(&zc
.value
);
1244 convert_to_double(&zc
.value
);
1247 zend_register_constant(&zc
);
1251 return C
->closures
= C
->ops
->compile(C
);
1255 void PSI_ContextCall(PSI_Context
*C
, decl_callinfo
*decl_call
, impl_vararg
*va
)
1257 C
->ops
->call(C
, decl_call
, va
);
1260 static inline void dump_decl_type(int fd
, decl_type
*t
) {
1270 dprintf(fd
, "%s%s", pre
, t
->name
);
1272 static inline void dump_decl_var(int fd
, decl_var
*v
) {
1273 dprintf(fd
, "%.*s%s", v
->pointer_level
-!!v
->array_size
, "**********", v
->name
);
1274 if (v
->array_size
) {
1275 dprintf(fd
, "[%u]", v
->array_size
);
1278 static inline void dump_decl_arg(int fd
, decl_arg
*a
) {
1279 dump_decl_type(fd
, a
->type
);
1281 dump_decl_var(fd
, a
->var
);
1283 static inline void dump_level(int fd
, unsigned level
) {
1284 dprintf(fd
, "%.*s", level
, "\t\t\t\t\t\t\t\t\t");
1286 static inline void dump_num_exp(int fd
, num_exp
*exp
) {
1290 dprintf(fd
, "%s", exp
->u
.numb
);
1293 dprintf(fd
, "%s", exp
->u
.cnst
->name
);
1296 dump_decl_var(fd
, exp
->u
.dvar
);
1298 EMPTY_SWITCH_DEFAULT_CASE();
1303 switch (exp
->operator) {
1304 case PSI_T_PLUS
: op
= '+'; break;
1305 case PSI_T_MINUS
: op
= '-'; break;
1306 case PSI_T_ASTERISK
:op
= '*'; break;
1307 case PSI_T_SLASH
: op
= '/'; break;
1308 EMPTY_SWITCH_DEFAULT_CASE();
1310 dprintf(fd
, " %c ", op
);
1315 static inline void dump_impl_set_value(int fd
, set_value
*set
, unsigned level
) {
1319 /* only if not directly after `set ...` */
1320 dump_level(fd
, level
);
1322 dprintf(fd
, "%s(", set
->func
->name
);
1324 for (i
= 0; i
< set
->vars
->count
; ++i
) {
1325 decl_var
*svar
= set
->vars
->vars
[i
];
1329 dump_decl_var(fd
, svar
);
1333 dump_num_exp(fd
, set
->num
);
1337 for (i
= 0; i
< set
->count
; ++i
) {
1338 dump_impl_set_value(fd
, set
->inner
[i
], level
+1);
1340 /* only if inner stmts, i.e. with new lines, were dumped */
1341 dump_level(fd
, level
);
1344 dprintf(fd
, "),\n");
1346 dprintf(fd
, ");\n");
1349 void PSI_ContextDump(PSI_Context
*C
, int fd
)
1354 if (C
->ops
== PSI_Libjit()) {
1355 dprintf(fd
, "// psi.engine=jit\n");
1359 if (C
->ops
== PSI_Libffi()) {
1360 dprintf(fd
, "// psi.engine=ffi\n");
1366 for (i
= 0; i
< C
->defs
->count
; ++i
) {
1367 decl_typedef
*tdef
= C
->defs
->list
[i
];
1369 dprintf(fd
, "typedef ");
1370 dump_decl_type(fd
, tdef
->type
);
1371 dprintf(fd
, " %s;\n", tdef
->alias
);
1377 for (i
= 0; i
< C
->structs
->count
; ++i
) {
1378 decl_struct
*strct
= C
->structs
->list
[i
];
1380 dprintf(fd
, "struct %s::(%zu) {\n", strct
->name
, strct
->size
);
1381 if (strct
->args
) for (j
= 0; j
< strct
->args
->count
; ++j
) {
1382 decl_arg
*sarg
= strct
->args
->args
[j
];
1385 dump_decl_arg(fd
, sarg
);
1386 dprintf(fd
, "::(%zu, %zu);\n", sarg
->layout
->pos
, sarg
->layout
->len
);
1393 for (i
= 0; i
< C
->consts
->count
; ++i
) {
1394 constant
*cnst
= C
->consts
->list
[i
];
1396 dprintf(fd
, "const %s %s = ", cnst
->type
->name
, cnst
->name
);
1397 if (cnst
->val
->type
== PSI_T_QUOTED_STRING
) {
1398 dprintf(fd
, "\"%s\";\n", cnst
->val
->text
);
1400 dprintf(fd
, "%s;\n", cnst
->val
->text
);
1406 for (i
= 0; i
< C
->decls
->count
; ++i
) {
1407 decl
*decl
= C
->decls
->list
[i
];
1409 dprintf(fd
, "%s ", decl
->abi
->convention
);
1410 dump_decl_arg(fd
, decl
->func
);
1413 for (j
= 0; j
< decl
->args
->count
; ++j
) {
1417 dump_decl_arg(fd
, decl
->args
->args
[j
]);
1419 if (decl
->args
->varargs
) {
1420 dprintf(fd
, ", ...");
1423 dprintf(fd
, ");\n");
1428 for (i
= 0; i
< C
->impls
->count
; ++i
) {
1429 impl
*impl
= C
->impls
->list
[i
];
1431 dprintf(fd
, "function %s(", impl
->func
->name
);
1432 if (impl
->func
->args
) {
1433 for (j
= 0; j
< impl
->func
->args
->count
; ++j
) {
1434 impl_arg
*iarg
= impl
->func
->args
->args
[j
];
1436 dprintf(fd
, "%s%s %s$%s",
1439 iarg
->var
->reference
? "&" : "",
1442 dprintf(fd
, " = %s", iarg
->def
->text
);
1445 if (impl
->func
->args
->vararg
.name
) {
1446 impl_arg
*vararg
= impl
->func
->args
->vararg
.name
;
1448 dprintf(fd
, ", %s %s...$%s",
1450 vararg
->var
->reference
? "&" : "",
1454 dprintf(fd
, ") : %s%s {\n",
1455 impl
->func
->return_reference
? "&":"",
1456 impl
->func
->return_type
->name
);
1458 for (j
= 0; j
< impl
->stmts
->let
.count
; ++j
) {
1459 let_stmt
*let
= impl
->stmts
->let
.list
[j
];
1461 dprintf(fd
, "\tlet %s", let
->var
->name
);
1463 dprintf(fd
, " = %s", let
->val
->flags
.one
.is_reference
? "&" : "");
1464 switch (let
->val
->kind
) {
1466 dprintf(fd
, "NULL");
1469 dump_decl_var(fd
, let
->val
->data
.var
);
1471 case PSI_LET_CALLOC
:
1472 dprintf(fd
, "calloc(");
1473 dump_num_exp(fd
, let
->val
->data
.alloc
->nmemb
);
1475 dump_num_exp(fd
, let
->val
->data
.alloc
->size
);
1479 dprintf(fd
, "%s($%s)", let
->val
->data
.func
->name
,
1480 let
->val
->data
.func
->var
->name
);
1483 EMPTY_SWITCH_DEFAULT_CASE();
1488 for (j
= 0; j
< impl
->stmts
->ret
.count
; ++j
) {
1489 return_stmt
*ret
= impl
->stmts
->ret
.list
[j
];
1491 dprintf(fd
, "\treturn ");
1492 dump_impl_set_value(fd
, ret
->set
, 1);
1494 for (j
= 0; j
< impl
->stmts
->set
.count
; ++j
) {
1495 set_stmt
*set
= impl
->stmts
->set
.list
[j
];
1497 dprintf(fd
, "\tset $%s = ", set
->var
->name
);
1498 dump_impl_set_value(fd
, set
->val
, 1);
1500 for (j
= 0; j
< impl
->stmts
->fre
.count
; ++j
) {
1501 free_stmt
*fre
= impl
->stmts
->fre
.list
[j
];
1503 dprintf(fd
, "\tfree ");
1504 for (k
= 0; k
< fre
->calls
->count
; ++k
) {
1505 free_call
*call
= fre
->calls
->list
[k
];
1510 dprintf(fd
, "%s(", call
->func
);
1511 for (l
= 0; l
< call
->vars
->count
; ++l
) {
1512 decl_var
*fvar
= call
->vars
->vars
[l
];
1514 dump_decl_var(fd
, fvar
);
1516 dprintf(fd
, ");\n");
1526 void PSI_ContextDtor(PSI_Context
*C
)
1529 zend_function_entry
*zfe
;
1535 free_decl_libs(&C
->psi
.libs
);
1538 for (i
= 0; i
< C
->count
; ++i
) {
1539 PSI_DataDtor(&C
->data
[i
]);
1545 for (zfe
= C
->closures
; zfe
->fname
; ++zfe
) {
1546 free((void *) zfe
->arg_info
);
1552 if (C
->consts
->list
) {
1553 free(C
->consts
->list
);
1558 if (C
->defs
->list
) {
1559 free(C
->defs
->list
);
1564 if (C
->structs
->list
) {
1565 free(C
->structs
->list
);
1570 if (C
->decls
->list
) {
1571 free(C
->decls
->list
);
1576 if (C
->impls
->list
) {
1577 free(C
->impls
->list
);
1582 memset(C
, 0, sizeof(*C
));
1585 void PSI_ContextFree(PSI_Context
**C
)
1588 PSI_ContextDtor(*C
);