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 */
362 static inline int validate_decl_abi(PSI_Data
*data
, decl_abi
*abi
) {
365 for (i
= 0; i
< sizeof(abi_ccs
)/sizeof(char*); ++i
) {
366 if (strcasecmp(abi
->convention
, abi_ccs
[i
])) {
372 static inline int validate_decl_func(PSI_Data
*data
, void *dl
, decl
*decl
, decl_arg
*func
)
374 struct psi_func_redir
*redir
;
376 if (!strcmp(func
->var
->name
, "dlsym")) {
377 data
->error(func
->token
, PSI_WARNING
, "Cannot dlsym dlsym (sic!)");
381 if (!validate_decl_arg(data
, func
)) {
384 for (redir
= &psi_func_redirs
[0]; redir
->name
; ++redir
) {
385 if (!strcmp(func
->var
->name
, redir
->name
)) {
386 decl
->call
.sym
= redir
->func
;
389 if (!decl
->call
.sym
) {
391 # define RTLD_NEXT ((void *) -1l)
393 decl
->call
.sym
= dlsym(dl
?: RTLD_NEXT
, func
->var
->name
);
394 if (!decl
->call
.sym
) {
395 data
->error(func
->token
, PSI_WARNING
,
396 "Failed to locate symbol '%s': %s",
397 func
->var
->name
, dlerror());
403 static inline int validate_decl(PSI_Data
*data
, void *dl
, decl
*decl
) {
404 if (!validate_decl_abi(data
, decl
->abi
)) {
405 data
->error(decl
->abi
->token
, PSI_WARNING
,
406 "Invalid calling convention: '%s'", decl
->abi
->token
->text
);
409 if (!validate_decl_func(data
, dl
, decl
, decl
->func
)) {
415 for (i
= 0; i
< decl
->args
->count
; ++i
) {
416 if (!validate_decl_arg(data
, decl
->args
->args
[i
])) {
423 static inline decl_arg
*locate_decl_var_arg(decl_var
*var
, decl_args
*args
, decl_arg
*func
) {
426 for (i
= 0; i
< args
->count
; ++i
) {
427 decl_arg
*arg
= args
->args
[i
];
429 if (!strcmp(var
->name
, arg
->var
->name
)) {
430 ZEND_ASSERT(!var
->arg
|| var
->arg
== arg
);
431 return var
->arg
= arg
;
434 if (func
&& !strcmp(var
->name
, func
->var
->name
)) {
435 return var
->arg
= func
;
440 static inline decl_arg
*locate_struct_member(decl_struct
*s
, decl_var
*var
) {
442 return locate_decl_var_arg(var
, s
->args
, NULL
);
447 static inline constant
*locate_num_exp_constant(num_exp
*exp
, constants
*consts
) {
450 for (i
= 0; i
< consts
->count
; ++i
) {
451 constant
*cnst
= consts
->list
[i
];
453 if (!strcmp(cnst
->name
, exp
->u
.numb
)) {
455 return exp
->u
.cnst
= cnst
;
461 static inline int validate_num_exp(PSI_Data
*data
, decl_args
*dargs
, decl_arg
*func
, num_exp
*exp
) {
463 switch (exp
->operator) {
465 exp
->calculator
= psi_calc_add
;
468 exp
->calculator
= psi_calc_sub
;
471 exp
->calculator
= psi_calc_mul
;
474 exp
->calculator
= psi_calc_div
;
476 EMPTY_SWITCH_DEFAULT_CASE();
478 if (!validate_num_exp(data
, dargs
, func
, exp
->operand
)) {
484 if (!locate_decl_var_arg(exp
->u
.dvar
, dargs
, func
)) {
485 data
->error(exp
->token
, PSI_WARNING
, "Unknown variable '%s' in numeric expression",
491 if (!locate_num_exp_constant(exp
, data
->consts
)) {
492 data
->error(exp
->token
, PSI_WARNING
, "Unknown constant '%s' in numeric expression",
503 static inline int validate_set_value_handler(set_value
*set
) {
504 switch (set
->func
->type
) {
506 set
->func
->handler
= psi_to_bool
;
509 set
->func
->handler
= psi_to_int
;
512 set
->func
->handler
= psi_to_double
;
514 case PSI_T_TO_STRING
:
515 set
->func
->handler
= psi_to_string
;
518 set
->func
->handler
= psi_to_array
;
520 case PSI_T_TO_OBJECT
:
521 set
->func
->handler
= psi_to_object
;
524 set
->func
->handler
= psi_to_void
;
531 static inline void decl_var_arg_v(decl_args
*args
, va_list argp
) {
535 memset(args
, 0, sizeof(*args
));
537 while ((argc
= va_arg(argp
, int))) {
538 argv
= va_arg(argp
, decl_arg
**);
540 add_decl_arg(args
, *argv
++);
544 static inline int validate_set_value_ex(PSI_Data
*data
, set_value
*set
, decl_arg
*ref
, decl_args
*ref_list
) {
547 decl_var
*set_var
= set
->vars
->vars
[0];
549 if (!validate_set_value_handler(set
)) {
550 data
->error(set
->func
->token
, PSI_WARNING
, "Invalid cast '%s'", set
->func
->name
);
554 for (i
= 0; i
< set
->vars
->count
; ++i
) {
555 decl_var
*svar
= set
->vars
->vars
[i
];
556 if (!svar
->arg
&& !locate_decl_var_arg(svar
, ref_list
, NULL
)) {
557 data
->error(svar
->token
, PSI_WARNING
, "Unknown variable '%s'", svar
->name
);
565 ref_type
= real_decl_type(ref
->type
);
568 int is_to_array
= (set
->func
->type
== PSI_T_TO_ARRAY
);
569 int is_pointer_to_struct
= (ref_type
->type
== PSI_T_STRUCT
&& ref
->var
->pointer_level
);
571 if (!is_to_array
&& !is_pointer_to_struct
) {
572 data
->error(set
->func
->token
, E_WARNING
, "Inner `set` statement casts only work with "
573 "to_array() casts on structs or pointers: %s(%s...", set
->func
->name
, set
->vars
->vars
[0]->name
);
578 if (!validate_num_exp(data
, ref_list
, ref
, set
->num
)) {
583 if (ref_type
->type
== PSI_T_STRUCT
) {
584 /* to_array(struct, to_...) */
585 for (i
= 0; i
< set
->count
; ++i
) {
586 decl_var
*sub_var
= set
->inner
[i
]->vars
->vars
[0];
587 decl_arg
*sub_ref
= locate_struct_member(ref_type
->strct
, sub_var
);
589 set
->inner
[i
]->outer
.set
= set
;
591 if (!validate_set_value_ex(data
, set
->inner
[i
], sub_ref
, ref_type
->strct
->args
)) {
596 } else if (set
->count
== 1) {
597 /* to_array(ptr, to_string(*ptr)) */
598 decl_var
*sub_var
= set
->inner
[0]->vars
->vars
[0];
599 decl_arg
*sub_ref
= locate_decl_var_arg(sub_var
, ref_list
, ref
);
601 set
->inner
[0]->outer
.set
= set
;
603 if (strcmp(sub_var
->name
, set_var
->name
)) {
604 data
->error(sub_var
->token
, E_WARNING
, "Inner `set` statement casts on pointers must reference the same variable");
607 if (!validate_set_value_ex(data
, set
->inner
[0], sub_ref
, ref_list
)) {
611 } else if (set
->count
> 1) {
612 data
->error(set
->func
->token
, E_WARNING
, "Inner `set` statement casts on pointers may only occur once");
618 static inline int validate_set_value(PSI_Data
*data
, set_value
*set
, ...) {
620 decl_args args
= {0};
624 decl_var_arg_v(&args
, argp
);
627 check
= validate_set_value_ex(data
, set
, NULL
, &args
);
633 static inline decl
*locate_impl_decl(decls
*decls
, return_stmt
*ret
) {
637 for (i
= 0; i
< decls
->count
; ++i
) {
638 if (!strcmp(decls
->list
[i
]->func
->var
->name
, ret
->set
->vars
->vars
[0]->name
)) {
639 ret
->decl
= decls
->list
[i
]->func
;
640 return decls
->list
[i
];
647 static inline int validate_impl_ret_stmt(PSI_Data
*data
, impl
*impl
) {
650 /* we must have exactly one ret stmt delcaring the native func to call */
651 /* and which type cast to apply */
652 if (impl
->stmts
->ret
.count
!= 1) {
653 if (impl
->stmts
->ret
.count
> 1) {
654 data
->error(impl
->stmts
->ret
.list
[1]->token
, PSI_WARNING
,
655 "Too many `return` statements for implmentation %s;"
656 " found %zu, exactly one is needed",
657 impl
->func
->name
, impl
->stmts
->ret
.count
);
659 data
->error(impl
->func
->token
, PSI_WARNING
,
660 "Missing `return` statement for implementation %s",
666 ret
= impl
->stmts
->ret
.list
[0];
668 if (!(impl
->decl
= locate_impl_decl(data
->decls
, ret
))) {
669 data
->error(ret
->token
, PSI_WARNING
,
670 "Missing declaration '%s' for `return` statment for implementation %s",
671 ret
->set
->vars
->vars
[0]->name
, impl
->func
->name
);
675 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)) {
679 impl
->decl
->impl
= impl
;
684 static inline int validate_impl_let_stmts(PSI_Data
*data
, impl
*impl
) {
686 /* we can have multiple let stmts */
688 /* check that we have a decl arg for every let stmt */
689 for (i
= 0; i
< impl
->stmts
->let
.count
; ++i
) {
690 let_stmt
*let
= impl
->stmts
->let
.list
[i
];
694 if (let
->val
&& let
->val
->kind
== PSI_LET_TMP
) {
695 let_var
= let
->val
->data
.var
;
700 if (!locate_decl_var_arg(let_var
, impl
->decl
->args
, impl
->decl
->func
)) {
701 data
->error(let_var
->token
, PSI_WARNING
, "Unknown variable '%s' in `let` statement"
702 " of implementation '%s'", let_var
->name
, impl
->func
->name
);
706 switch (let
->val
->kind
) {
710 /* e.g. let bar = &strval($bar); // decl_arg(char **bar) */
711 /* e.g. let foo = *bar; */
712 let
->var
->pointer_level
= let
->val
->data
.var
->pointer_level
;
713 let
->var
->arg
= init_decl_arg(
715 real_decl_type(let
->val
->data
.var
->arg
->type
)->type
,
716 real_decl_type(let
->val
->data
.var
->arg
->type
)->name
),
719 let
->var
->pointer_level
,
720 let
->var
->array_size
));
723 if (!validate_num_exp(data
, impl
->decl
->args
, impl
->decl
->func
, let
->val
->data
.num
)) {
728 if (!validate_num_exp(data
, impl
->decl
->args
, impl
->decl
->func
, let
->val
->data
.alloc
->nmemb
)) {
731 if (!validate_num_exp(data
, impl
->decl
->args
, impl
->decl
->func
, let
->val
->data
.alloc
->size
)) {
736 if (impl
->func
->args
) {
737 for (j
= 0; j
< impl
->func
->args
->count
; ++j
) {
738 impl_arg
*iarg
= impl
->func
->args
->args
[j
];
740 if (!strcmp(let
->val
->data
.func
->var
->name
, iarg
->var
->name
)) {
741 let
->val
->data
.func
->arg
= iarg
;
748 data
->error(let
->var
->token
, PSI_WARNING
, "Unknown value '$%s' of `let` statement"
749 " for variable '%s' of implementation '%s'",
750 let
->val
->data
.func
->var
->name
, let
->var
->name
, impl
->func
->name
);
757 /* check that we have a let stmt for every decl arg */
758 if (impl
->decl
->args
) for (i
= 0; i
< impl
->decl
->args
->count
; ++i
) {
759 decl_arg
*darg
= impl
->decl
->args
->args
[i
];
762 for (j
= 0; j
< impl
->stmts
->let
.count
; ++j
) {
763 let_stmt
*let
= impl
->stmts
->let
.list
[j
];
765 if (!strcmp(let
->var
->name
, darg
->var
->name
)) {
772 data
->error(impl
->func
->token
, PSI_WARNING
,
773 "Missing `let` statement for arg '%s %.*s%s'"
774 " of declaration '%s' for implementation '%s'",
775 darg
->type
->name
, (int) darg
->var
->pointer_level
, "*****",
776 darg
->var
->name
, impl
->decl
->func
->var
->name
, impl
->func
->name
);
783 static inline int validate_impl_set_stmts(PSI_Data
*data
, impl
*impl
) {
785 /* we can have any count of set stmts; processing out vars */
786 /* check that set stmts reference known variables */
787 for (i
= 0; i
< impl
->stmts
->set
.count
; ++i
) {
788 set_stmt
*set
= impl
->stmts
->set
.list
[i
];
791 if (impl
->func
->args
) for (j
= 0; j
< impl
->func
->args
->count
; ++j
) {
792 impl_arg
*iarg
= impl
->func
->args
->args
[j
];
794 if (!strcmp(set
->var
->name
, iarg
->var
->name
)) {
801 data
->error(set
->var
->token
, PSI_WARNING
, "Unknown variable '$%s' of `set` statement"
802 " of implementation '%s'",
803 set
->var
->name
, impl
->func
->name
);
807 for (j
= 0; j
< set
->val
->vars
->count
; ++j
) {
808 decl_var
*set_var
= set
->val
->vars
->vars
[j
];
811 if (impl
->decl
->args
) {
812 for (k
= 0; k
< impl
->decl
->args
->count
; ++k
) {
813 decl_arg
*set_arg
= impl
->decl
->args
->args
[k
];
815 if (!strcmp(set_var
->name
, set_arg
->var
->name
)) {
817 set_var
->arg
= set_arg
;
818 if (!validate_set_value(data
, set
->val
, 1, &set_arg
, 1, &impl
->decl
->func
, impl
->decl
->args
->count
, impl
->decl
->args
->args
, 0)) {
826 for (k
= 0; k
< impl
->stmts
->let
.count
; ++k
) {
827 let_stmt
*let
= impl
->stmts
->let
.list
[k
];
829 /* check temp vars */
830 if (let
->val
&& let
->val
->kind
== PSI_LET_TMP
) {
831 if (!strcmp(set_var
->name
, let
->var
->name
)) {
833 set_var
->arg
= let
->var
->arg
;
834 if (!validate_set_value(data
, set
->val
, 1, &set_var
->arg
, 1, &impl
->decl
->func
, impl
->decl
->args
->count
, impl
->decl
->args
->args
, 0)) {
844 data
->error(set_var
->token
, PSI_WARNING
, "Unknown value '%s' of `set` statement"
845 " for variable '$%s' of implementation '%s'",
846 set_var
->name
, set
->arg
->var
->name
, impl
->func
->name
);
853 static inline decl
*locate_free_decl(decls
*decls
, free_call
*f
) {
857 for (i
= 0; i
< decls
->count
; ++i
) {
858 if (!strcmp(decls
->list
[i
]->func
->var
->name
, f
->func
)) {
859 f
->decl
= decls
->list
[i
];
860 return decls
->list
[i
];
867 static inline int validate_impl_free_stmts(PSI_Data
*data
, impl
*impl
) {
869 /* we can have any count of free stmts; freeing any out vars */
870 for (i
= 0; i
< impl
->stmts
->fre
.count
; ++i
) {
871 free_stmt
*fre
= impl
->stmts
->fre
.list
[i
];
873 for (j
= 0; j
< fre
->calls
->count
; ++j
) {
874 free_call
*free_call
= fre
->calls
->list
[j
];
876 /* first find the decl of the free func */
877 if (!locate_free_decl(data
->decls
, free_call
)) {
878 data
->error(free_call
->token
, PSI_WARNING
,
879 "Missing declaration '%s' in `free` statement"
880 " of implementation '%s'",
881 free_call
->func
, impl
->func
->name
);
884 if (!impl
->decl
->args
) {
885 data
->error(free_call
->token
, PSI_WARNING
,
886 "Declaration '%s' of implementation '%s'"
887 " does not have any arguments to free",
888 impl
->decl
->func
->var
->name
, impl
->func
->name
);
891 /* now check for known vars */
892 for (l
= 0; l
< free_call
->vars
->count
; ++l
) {
894 decl_var
*free_var
= free_call
->vars
->vars
[l
];
896 for (k
= 0; k
< impl
->decl
->args
->count
; ++k
) {
897 decl_arg
*free_arg
= impl
->decl
->args
->args
[k
];
899 if (!strcmp(free_var
->name
, free_arg
->var
->name
)) {
901 free_var
->arg
= free_arg
;
907 data
->error(free_var
->token
, PSI_WARNING
,
908 "Unknown variable '%s' of `free` statement"
909 " of implementation '%s'",
910 free_var
->name
, impl
->func
->name
);
918 static inline int validate_impl_stmts(PSI_Data
*data
, impl
*impl
) {
920 data
->error(impl
->func
->token
, PSI_WARNING
,
921 "Missing body for implementation %s!",
926 if (!validate_impl_ret_stmt(data
, impl
)) {
930 if (!validate_impl_let_stmts(data
, impl
)) {
933 if (!validate_impl_set_stmts(data
, impl
)) {
936 if (!validate_impl_free_stmts(data
, impl
)) {
943 PSI_Context
*PSI_ContextInit(PSI_Context
*C
, PSI_ContextOps
*ops
, PSI_ContextErrorFunc error
)
947 struct psi_predef_type
*predef_type
;
948 struct psi_predef_const
*predef_const
;
949 struct psi_predef_struct
*predef_struct
;
950 struct psi_predef_decl
*predef_decl
;
953 C
= malloc(sizeof(*C
));
955 memset(C
, 0, sizeof(*C
));
964 ZEND_ASSERT(ops
->call
!= NULL
);
965 ZEND_ASSERT(ops
->compile
!= NULL
);
967 /* build up predefs in a temporary PSI_Data for validation */
968 memset(&T
, 0, sizeof(T
));
971 for (predef_type
= &psi_predef_types
[0]; predef_type
->type_tag
; ++predef_type
) {
972 decl_type
*type
= init_decl_type(predef_type
->type_tag
, predef_type
->type_name
);
973 decl_typedef
*def
= init_decl_typedef(predef_type
->alias
, type
);
975 T
.defs
= add_decl_typedef(T
.defs
, def
);
977 for (predef_const
= &psi_predef_consts
[0]; predef_const
->type_tag
; ++predef_const
) {
978 impl_def_val
*val
= init_impl_def_val(predef_const
->val_type_tag
, predef_const
->val_text
);
979 const_type
*type
= init_const_type(predef_const
->type_tag
, predef_const
->type_name
);
980 constant
*constant
= init_constant(type
, predef_const
->var_name
, val
);
982 T
.consts
= add_constant(T
.consts
, constant
);
984 for (predef_struct
= &psi_predef_structs
[0]; predef_struct
->type_tag
; ++predef_struct
) {
985 struct psi_predef_struct
*member
;
986 decl_args
*dargs
= init_decl_args(NULL
);
987 decl_struct
*dstruct
= init_decl_struct(predef_struct
->var_name
, dargs
);
989 dstruct
->size
= predef_struct
->size
;
990 for (member
= &predef_struct
[1]; member
->type_tag
; ++member
) {
995 type
= init_decl_type(member
->type_tag
, member
->type_name
);
996 dvar
= init_decl_var(member
->var_name
, member
->pointer_level
, member
->array_size
);
997 darg
= init_decl_arg(type
, dvar
);
998 darg
->layout
= init_decl_struct_layout(member
->offset
, member
->size
);
999 dargs
= add_decl_arg(dargs
, darg
);
1002 T
.structs
= add_decl_struct(T
.structs
, dstruct
);
1003 predef_struct
= member
;
1005 for (predef_decl
= &psi_predef_decls
[0]; predef_decl
->type_tag
; ++predef_decl
) {
1006 struct psi_predef_decl
*farg
;
1007 decl_type
*ftype
= init_decl_type(predef_decl
->type_tag
, predef_decl
->type_name
);
1008 decl_var
*fname
= init_decl_var(predef_decl
->var_name
, predef_decl
->pointer_level
, predef_decl
->array_size
);
1009 decl_arg
*func
= init_decl_arg(ftype
, fname
);
1010 decl_args
*args
= init_decl_args(NULL
);
1011 decl
*decl
= init_decl(init_decl_abi("default"), func
, args
);
1013 for (farg
= &predef_decl
[1]; farg
->type_tag
; ++farg
) {
1014 decl_type
*arg_type
= init_decl_type(farg
->type_tag
, farg
->type_name
);
1015 decl_var
*arg_var
= init_decl_var(farg
->var_name
, farg
->pointer_level
, farg
->array_size
);
1016 decl_arg
*darg
= init_decl_arg(arg_type
, arg_var
);
1017 args
= add_decl_arg(args
, darg
);
1020 T
.decls
= add_decl(T
.decls
, decl
);
1024 for (predef_decl
= &psi_predef_vararg_decls
[0]; predef_decl
->type_tag
; ++predef_decl
) {
1025 struct psi_predef_decl
*farg
;
1026 decl_type
*ftype
= init_decl_type(predef_decl
->type_tag
, predef_decl
->type_name
);
1027 decl_var
*fname
= init_decl_var(predef_decl
->var_name
, predef_decl
->pointer_level
, predef_decl
->array_size
);
1028 decl_arg
*func
= init_decl_arg(ftype
, fname
);
1029 decl_args
*args
= init_decl_args(NULL
);
1030 decl
*decl
= init_decl(init_decl_abi("default"), func
, args
);
1032 for (farg
= &predef_decl
[1]; farg
->type_tag
; ++farg
) {
1033 decl_type
*arg_type
= init_decl_type(farg
->type_tag
, farg
->type_name
);
1034 decl_var
*arg_var
= init_decl_var(farg
->var_name
, farg
->pointer_level
, farg
->array_size
);
1035 decl_arg
*darg
= init_decl_arg(arg_type
, arg_var
);
1036 args
= add_decl_arg(args
, darg
);
1040 T
.decls
= add_decl(T
.decls
, decl
);
1044 for (i
= 0; i
< T
.defs
->count
; ++i
) {
1045 decl_typedef
*def
= T
.defs
->list
[i
];
1047 if (validate_decl_typedef(&T
, def
)) {
1048 C
->defs
= add_decl_typedef(C
->defs
, def
);
1052 for (i
= 0; i
< T
.consts
->count
; ++i
) {
1053 constant
*constant
= T
.consts
->list
[i
];
1055 if (validate_constant(&T
, constant
)) {
1056 C
->consts
= add_constant(C
->consts
, constant
);
1060 for (i
= 0; i
< T
.structs
->count
; ++i
) {
1061 decl_struct
*dstruct
= T
.structs
->list
[i
];
1063 if (validate_decl_struct(&T
, dstruct
)) {
1064 C
->structs
= add_decl_struct(C
->structs
, dstruct
);
1068 for (i
= 0; i
< T
.decls
->count
; ++i
) {
1069 decl
*decl
= T
.decls
->list
[i
];
1071 if (validate_decl(&T
, NULL
, decl
)) {
1072 C
->decls
= add_decl(C
->decls
, decl
);
1077 C
->data
= malloc(sizeof(*C
->data
));
1078 PSI_DataExchange(C
->data
, &T
);
1083 int PSI_ContextValidate(PSI_Context
*C
, PSI_Parser
*P
)
1086 void *dlopened
= NULL
;
1087 size_t count
= C
->count
++;
1089 C
->data
= realloc(C
->data
, C
->count
* sizeof(*C
->data
));
1090 D
= PSI_DataExchange(&C
->data
[count
], PSI_DATA(P
));
1095 for (i
= 0; i
< D
->defs
->count
; ++i
) {
1096 if (validate_decl_typedef(PSI_DATA(C
), D
->defs
->list
[i
])) {
1097 C
->defs
= add_decl_typedef(C
->defs
, D
->defs
->list
[i
]);
1104 for (i
= 0; i
< D
->structs
->count
; ++i
) {
1105 if (validate_decl_struct(PSI_DATA(C
), D
->structs
->list
[i
])) {
1106 C
->structs
= add_decl_struct(C
->structs
, D
->structs
->list
[i
]);
1113 for (i
= 0; i
< D
->consts
->count
; ++i
) {
1114 if (validate_constant(PSI_DATA(C
), D
->consts
->list
[i
])) {
1115 C
->consts
= add_constant(C
->consts
, D
->consts
->list
[i
]);
1120 if (!validate_lib(D
, &dlopened
)) {
1124 add_decl_lib(&C
->psi
.libs
, dlopened
);
1129 for (i
= 0; i
< D
->decls
->count
; ++i
) {
1130 if (validate_decl(PSI_DATA(C
), dlopened
, D
->decls
->list
[i
])) {
1131 C
->decls
= add_decl(C
->decls
, D
->decls
->list
[i
]);
1138 for (i
= 0; i
< D
->impls
->count
; ++i
) {
1139 if (validate_impl_stmts(PSI_DATA(C
), D
->impls
->list
[i
])) {
1140 C
->impls
= add_impl(C
->impls
, D
->impls
->list
[i
]);
1148 static int psi_select_dirent(const struct dirent
*entry
)
1150 #ifndef FNM_CASEFOLD
1151 #define FNM_CASEFOLD 0
1153 return 0 == fnmatch("*.psi", entry
->d_name
, FNM_CASEFOLD
);
1156 void PSI_ContextBuild(PSI_Context
*C
, const char *paths
)
1158 int i
, n
, flags
= psi_check_env("PSI_DEBUG") ? PSI_PARSER_DEBUG
: 0;
1159 char *sep
= NULL
, *cpy
= strdup(paths
), *ptr
= cpy
;
1160 struct dirent
**entries
= NULL
;
1164 sep
= strchr(ptr
, ':');
1170 n
= php_scandir(ptr
, &entries
, psi_select_dirent
, alphasort
);
1173 for (i
= 0; i
< n
; ++i
) {
1174 char psi
[MAXPATHLEN
];
1177 if (MAXPATHLEN
<= slprintf(psi
, MAXPATHLEN
, "%s/%s", ptr
, entries
[i
]->d_name
)) {
1178 C
->error(NULL
, PSI_WARNING
, "Path to PSI file too long: %s/%s",
1179 ptr
, entries
[i
]->d_name
);
1181 if (!PSI_ParserInit(&P
, psi
, C
->error
, flags
)) {
1182 C
->error(NULL
, PSI_WARNING
, "Failed to init PSI parser (%s): %s",
1183 psi
, strerror(errno
));
1187 while (0 < PSI_ParserScan(&P
)) {
1188 PSI_ParserParse(&P
, PSI_TokenAlloc(&P
));
1189 if (P
.num
== PSI_T_EOF
) {
1194 PSI_ParserParse(&P
, NULL
);
1195 PSI_ContextValidate(C
, &P
);
1201 for (i
= 0; i
< n
; ++i
) {
1211 if (PSI_ContextCompile(C
) && SUCCESS
!= zend_register_functions(NULL
, C
->closures
, NULL
, MODULE_PERSISTENT
)) {
1212 C
->error(NULL
, PSI_WARNING
, "Failed to register functions!");
1219 zend_function_entry
*PSI_ContextCompile(PSI_Context
*C
)
1226 zc
.flags
= CONST_PERSISTENT
|CONST_CS
;
1227 zc
.module_number
= EG(current_module
)->module_number
;
1229 for (i
= 0; i
< C
->consts
->count
; ++i
) {
1230 constant
*c
= C
->consts
->list
[i
];
1232 zc
.name
= zend_string_init(c
->name
+ (c
->name
[0] == '\\'), strlen(c
->name
) - (c
->name
[0] == '\\'), 1);
1233 ZVAL_NEW_STR(&zc
.value
, zend_string_init(c
->val
->text
, strlen(c
->val
->text
), 1));
1235 switch (c
->type
->type
) {
1237 convert_to_boolean(&zc
.value
);
1240 convert_to_long(&zc
.value
);
1243 convert_to_double(&zc
.value
);
1246 zend_register_constant(&zc
);
1250 return C
->closures
= C
->ops
->compile(C
);
1254 void PSI_ContextCall(PSI_Context
*C
, decl_callinfo
*decl_call
, impl_vararg
*va
)
1256 C
->ops
->call(C
, decl_call
, va
);
1259 static inline void dump_decl_type(int fd
, decl_type
*t
) {
1269 dprintf(fd
, "%s%s", pre
, t
->name
);
1271 static inline void dump_decl_var(int fd
, decl_var
*v
) {
1272 dprintf(fd
, "%.*s%s", v
->pointer_level
-!!v
->array_size
, "**********", v
->name
);
1273 if (v
->array_size
) {
1274 dprintf(fd
, "[%u]", v
->array_size
);
1277 static inline void dump_decl_arg(int fd
, decl_arg
*a
) {
1278 dump_decl_type(fd
, a
->type
);
1280 dump_decl_var(fd
, a
->var
);
1282 static inline void dump_level(int fd
, unsigned level
) {
1283 dprintf(fd
, "%.*s", level
, "\t\t\t\t\t\t\t\t\t");
1285 static inline void dump_num_exp(int fd
, num_exp
*exp
) {
1289 dprintf(fd
, "%s", exp
->u
.numb
);
1292 dprintf(fd
, "%s", exp
->u
.cnst
->name
);
1295 dump_decl_var(fd
, exp
->u
.dvar
);
1297 EMPTY_SWITCH_DEFAULT_CASE();
1302 switch (exp
->operator) {
1303 case PSI_T_PLUS
: op
= '+'; break;
1304 case PSI_T_MINUS
: op
= '-'; break;
1305 case PSI_T_ASTERISK
:op
= '*'; break;
1306 case PSI_T_SLASH
: op
= '/'; break;
1307 EMPTY_SWITCH_DEFAULT_CASE();
1309 dprintf(fd
, " %c ", op
);
1314 static inline void dump_impl_set_value(int fd
, set_value
*set
, unsigned level
) {
1318 /* only if not directly after `set ...` */
1319 dump_level(fd
, level
);
1321 dprintf(fd
, "%s(", set
->func
->name
);
1323 for (i
= 0; i
< set
->vars
->count
; ++i
) {
1324 decl_var
*svar
= set
->vars
->vars
[i
];
1328 dump_decl_var(fd
, svar
);
1332 dump_num_exp(fd
, set
->num
);
1336 for (i
= 0; i
< set
->count
; ++i
) {
1337 dump_impl_set_value(fd
, set
->inner
[i
], level
+1);
1339 /* only if inner stmts, i.e. with new lines, were dumped */
1340 dump_level(fd
, level
);
1343 dprintf(fd
, "),\n");
1345 dprintf(fd
, ");\n");
1348 void PSI_ContextDump(PSI_Context
*C
, int fd
)
1353 if (C
->ops
== PSI_Libjit()) {
1354 dprintf(fd
, "// psi.engine=jit\n");
1358 if (C
->ops
== PSI_Libffi()) {
1359 dprintf(fd
, "// psi.engine=ffi\n");
1365 for (i
= 0; i
< C
->defs
->count
; ++i
) {
1366 decl_typedef
*tdef
= C
->defs
->list
[i
];
1368 dprintf(fd
, "typedef ");
1369 dump_decl_type(fd
, tdef
->type
);
1370 dprintf(fd
, " %s;\n", tdef
->alias
);
1376 for (i
= 0; i
< C
->structs
->count
; ++i
) {
1377 decl_struct
*strct
= C
->structs
->list
[i
];
1379 dprintf(fd
, "struct %s::(%zu) {\n", strct
->name
, strct
->size
);
1380 if (strct
->args
) for (j
= 0; j
< strct
->args
->count
; ++j
) {
1381 decl_arg
*sarg
= strct
->args
->args
[j
];
1384 dump_decl_arg(fd
, sarg
);
1385 dprintf(fd
, "::(%zu, %zu);\n", sarg
->layout
->pos
, sarg
->layout
->len
);
1392 for (i
= 0; i
< C
->consts
->count
; ++i
) {
1393 constant
*cnst
= C
->consts
->list
[i
];
1395 dprintf(fd
, "const %s %s = ", cnst
->type
->name
, cnst
->name
);
1396 if (cnst
->val
->type
== PSI_T_QUOTED_STRING
) {
1397 dprintf(fd
, "\"%s\";\n", cnst
->val
->text
);
1399 dprintf(fd
, "%s;\n", cnst
->val
->text
);
1405 for (i
= 0; i
< C
->decls
->count
; ++i
) {
1406 decl
*decl
= C
->decls
->list
[i
];
1408 dprintf(fd
, "%s ", decl
->abi
->convention
);
1409 dump_decl_arg(fd
, decl
->func
);
1412 for (j
= 0; j
< decl
->args
->count
; ++j
) {
1416 dump_decl_arg(fd
, decl
->args
->args
[j
]);
1418 if (decl
->args
->varargs
) {
1419 dprintf(fd
, ", ...");
1422 dprintf(fd
, ");\n");
1427 for (i
= 0; i
< C
->impls
->count
; ++i
) {
1428 impl
*impl
= C
->impls
->list
[i
];
1430 dprintf(fd
, "function %s(", impl
->func
->name
);
1431 if (impl
->func
->args
) {
1432 for (j
= 0; j
< impl
->func
->args
->count
; ++j
) {
1433 impl_arg
*iarg
= impl
->func
->args
->args
[j
];
1435 dprintf(fd
, "%s%s %s$%s",
1438 iarg
->var
->reference
? "&" : "",
1441 dprintf(fd
, " = %s", iarg
->def
->text
);
1444 if (impl
->func
->args
->vararg
.name
) {
1445 impl_arg
*vararg
= impl
->func
->args
->vararg
.name
;
1447 dprintf(fd
, ", %s %s...$%s",
1449 vararg
->var
->reference
? "&" : "",
1453 dprintf(fd
, ") : %s%s {\n",
1454 impl
->func
->return_reference
? "&":"",
1455 impl
->func
->return_type
->name
);
1457 for (j
= 0; j
< impl
->stmts
->let
.count
; ++j
) {
1458 let_stmt
*let
= impl
->stmts
->let
.list
[j
];
1460 dprintf(fd
, "\tlet %s", let
->var
->name
);
1462 dprintf(fd
, " = %s", let
->val
->flags
.one
.is_reference
? "&" : "");
1463 switch (let
->val
->kind
) {
1465 dprintf(fd
, "NULL");
1468 dump_decl_var(fd
, let
->val
->data
.var
);
1470 case PSI_LET_CALLOC
:
1471 dprintf(fd
, "calloc(");
1472 dump_num_exp(fd
, let
->val
->data
.alloc
->nmemb
);
1474 dump_num_exp(fd
, let
->val
->data
.alloc
->size
);
1478 dprintf(fd
, "%s($%s)", let
->val
->data
.func
->name
,
1479 let
->val
->data
.func
->var
->name
);
1482 EMPTY_SWITCH_DEFAULT_CASE();
1487 for (j
= 0; j
< impl
->stmts
->ret
.count
; ++j
) {
1488 return_stmt
*ret
= impl
->stmts
->ret
.list
[j
];
1490 dprintf(fd
, "\treturn ");
1491 dump_impl_set_value(fd
, ret
->set
, 1);
1493 for (j
= 0; j
< impl
->stmts
->set
.count
; ++j
) {
1494 set_stmt
*set
= impl
->stmts
->set
.list
[j
];
1496 dprintf(fd
, "\tset $%s = ", set
->var
->name
);
1497 dump_impl_set_value(fd
, set
->val
, 1);
1499 for (j
= 0; j
< impl
->stmts
->fre
.count
; ++j
) {
1500 free_stmt
*fre
= impl
->stmts
->fre
.list
[j
];
1502 dprintf(fd
, "\tfree ");
1503 for (k
= 0; k
< fre
->calls
->count
; ++k
) {
1504 free_call
*call
= fre
->calls
->list
[k
];
1509 dprintf(fd
, "%s(", call
->func
);
1510 for (l
= 0; l
< call
->vars
->count
; ++l
) {
1511 decl_var
*fvar
= call
->vars
->vars
[l
];
1513 dump_decl_var(fd
, fvar
);
1515 dprintf(fd
, ");\n");
1525 void PSI_ContextDtor(PSI_Context
*C
)
1528 zend_function_entry
*zfe
;
1534 free_decl_libs(&C
->psi
.libs
);
1537 for (i
= 0; i
< C
->count
; ++i
) {
1538 PSI_DataDtor(&C
->data
[i
]);
1544 for (zfe
= C
->closures
; zfe
->fname
; ++zfe
) {
1545 free((void *) zfe
->arg_info
);
1551 if (C
->consts
->list
) {
1552 free(C
->consts
->list
);
1557 if (C
->defs
->list
) {
1558 free(C
->defs
->list
);
1563 if (C
->structs
->list
) {
1564 free(C
->structs
->list
);
1569 if (C
->decls
->list
) {
1570 free(C
->decls
->list
);
1575 if (C
->impls
->list
) {
1576 free(C
->impls
->list
);
1581 memset(C
, 0, sizeof(*C
));
1584 void PSI_ContextFree(PSI_Context
**C
)
1587 PSI_ContextDtor(*C
);