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 struct utsname
*uname2() {
155 struct utsname
*u
= calloc(1, sizeof(*u
));
160 int psi_glob(const char *pattern
, int flags
,
161 int (*errfunc
) (const char *epath
, int eerrno
),
163 size_t offs
= flags
& GLOB_DOOFFS
? pglob
->gl_offs
: 0;
164 int rv
= glob(pattern
, flags
, errfunc
, pglob
);
165 if (pglob
->gl_pathv
) {
167 pglob
->gl_pathv
[offs
] = NULL
;
173 static struct psi_func_redir
{
176 } psi_func_redirs
[] = {
177 {"glob", (void (*)(void)) psi_glob
},
178 {"uname2", (void (*)(void)) uname2
},
183 static struct psi_predef_decl
{
185 const char *type_name
;
186 const char *var_name
;
187 size_t pointer_level
;
189 } psi_predef_decls
[] = {
193 static struct psi_predef_decl psi_predef_vararg_decls
[] = {
198 static struct psi_predef_struct
{
200 const char *type_name
;
201 const char *var_name
;
204 size_t pointer_level
;
206 } psi_predef_structs
[] = {
211 static int validate_lib(PSI_Data
*data
, void **dlopened
) {
212 char lib
[MAXPATHLEN
];
213 const char *ptr
= data
->psi
.file
.ln
;
217 /* FIXME: assume stdlib */
219 } else if (!strchr(ptr
, '/')) {
220 len
= snprintf(lib
, MAXPATHLEN
, "lib%s.%s", ptr
, PHP_PSI_SHLIB_SUFFIX
);
221 if (MAXPATHLEN
== len
) {
222 data
->error(NULL
, PSI_WARNING
, "Library name too long: '%s'", ptr
);
227 if (!(*dlopened
= dlopen(ptr
, RTLD_LAZY
|RTLD_LOCAL
))) {
228 data
->error(NULL
, PSI_WARNING
, "Could not open library '%s': %s.",
229 data
->psi
.file
.ln
, dlerror());
235 static inline int locate_decl_type_alias(decl_typedefs
*defs
, decl_type
*type
) {
237 struct psi_std_type
*stdtyp
;
242 for (i
= 0; i
< defs
->count
; ++i
) {
243 decl_typedef
*def
= defs
->list
[i
];
245 if (def
->type
->type
!= type
->type
&& !strcmp(def
->alias
, type
->name
)) {
246 type
->real
= def
->type
;
250 for (stdtyp
= &psi_std_types
[0]; stdtyp
->type_tag
; ++stdtyp
) {
251 if (!strcmp(type
->name
, stdtyp
->type_name
)) {
252 type
->type
= stdtyp
->type_tag
;
259 static inline int locate_decl_type_struct(decl_structs
*structs
, decl_type
*type
) {
265 for (i
= 0; i
< structs
->count
; ++i
) {
266 if (!strcmp(structs
->list
[i
]->name
, type
->name
)) {
267 type
->strct
= structs
->list
[i
];
274 static inline int validate_decl_type(PSI_Data
*data
, decl_type
*type
) {
275 switch (type
->type
) {
277 if (!data
->defs
|| !locate_decl_type_alias(data
->defs
, type
)) {
281 return validate_decl_type(data
, type
->real
);
285 if (!data
->structs
|| !locate_decl_type_struct(data
->structs
, type
)) {
292 static inline int validate_decl_typedef(PSI_Data
*data
, decl_typedef
*def
) {
293 if (!validate_decl_type(data
, def
->type
)) {
294 data
->error(def
->token
, PSI_WARNING
,
295 "Type '%s' cannot be aliased to %s'%s'",
296 def
->type
->name
, def
->type
->type
== PSI_T_STRUCT
?"struct ":"",def
->alias
);
299 /* FIXME: check def->alias */
303 static inline int validate_constant(PSI_Data
*data
, constant
*c
) {
308 static inline int validate_decl_arg(PSI_Data
*data
, decl_arg
*arg
) {
309 if (!validate_decl_type(data
, arg
->type
)) {
310 data
->error(arg
->type
->token
, PSI_WARNING
,
311 "Cannot use '%s'(%d) as type for decl var '%s'",
312 arg
->type
->name
, arg
->type
->type
, arg
->var
->name
);
318 static inline int validate_decl_struct(PSI_Data
*data
, decl_struct
*s
) {
321 for (i
= 0; i
< s
->args
->count
; ++i
) {
322 if (!validate_decl_arg(data
, s
->args
->args
[i
])) {
327 for (i
= 0; i
< s
->args
->count
; ++i
) {
328 decl_arg
*darg
= s
->args
->args
[i
];
330 if (!validate_decl_arg(data
, darg
)) {
334 ZEND_ASSERT(!darg
->var
->arg
|| darg
->var
->arg
== darg
);
335 darg
->var
->arg
= darg
;
340 if (darg
->var
->pointer_level
&& (!darg
->var
->array_size
|| darg
->var
->pointer_level
== 1)) {
343 t
= real_decl_type(darg
->type
)->type
;
347 decl_arg
*last
= s
->args
->args
[i
-1];
348 darg
->layout
= init_decl_struct_layout(
349 psi_t_align(t
, last
->layout
->pos
+ last
->layout
->len
),
350 psi_t_size(t
) * darg
->var
->array_size
);
352 darg
->layout
= init_decl_struct_layout(0, psi_t_size(t
));
355 if (s
->size
< darg
->layout
->pos
+ darg
->layout
->len
) {
356 s
->size
= darg
->layout
->pos
+ darg
->layout
->len
;
362 static const char * const abi_ccs
[] = {
364 "extern", /* > - all the same */
370 static inline int validate_decl_abi(PSI_Data
*data
, decl_abi
*abi
) {
373 for (i
= 0; i
< sizeof(abi_ccs
)/sizeof(char*); ++i
) {
374 if (strcasecmp(abi
->convention
, abi_ccs
[i
])) {
380 static inline int validate_decl_func(PSI_Data
*data
, void *dl
, decl
*decl
, decl_arg
*func
)
382 struct psi_func_redir
*redir
;
384 if (!strcmp(func
->var
->name
, "dlsym")) {
385 data
->error(func
->token
, PSI_WARNING
, "Cannot dlsym dlsym (sic!)");
389 if (!validate_decl_arg(data
, func
)) {
392 for (redir
= &psi_func_redirs
[0]; redir
->name
; ++redir
) {
393 if (!strcmp(func
->var
->name
, redir
->name
)) {
394 decl
->call
.sym
= redir
->func
;
397 if (!decl
->call
.sym
) {
399 # define RTLD_NEXT ((void *) -1l)
401 decl
->call
.sym
= dlsym(dl
?: RTLD_NEXT
, func
->var
->name
);
402 if (!decl
->call
.sym
) {
403 data
->error(func
->token
, PSI_WARNING
,
404 "Failed to locate symbol '%s': %s",
405 func
->var
->name
, dlerror());
411 static inline int validate_decl(PSI_Data
*data
, void *dl
, decl
*decl
) {
412 if (!validate_decl_abi(data
, decl
->abi
)) {
413 data
->error(decl
->abi
->token
, PSI_WARNING
,
414 "Invalid calling convention: '%s'", decl
->abi
->token
->text
);
417 if (!validate_decl_func(data
, dl
, decl
, decl
->func
)) {
423 for (i
= 0; i
< decl
->args
->count
; ++i
) {
424 if (!validate_decl_arg(data
, decl
->args
->args
[i
])) {
431 static inline decl_arg
*locate_decl_var_arg(decl_var
*var
, decl_args
*args
, decl_arg
*func
) {
434 for (i
= 0; i
< args
->count
; ++i
) {
435 decl_arg
*arg
= args
->args
[i
];
437 if (!strcmp(var
->name
, arg
->var
->name
)) {
438 ZEND_ASSERT(!var
->arg
|| var
->arg
== arg
);
439 return var
->arg
= arg
;
442 if (func
&& !strcmp(var
->name
, func
->var
->name
)) {
443 return var
->arg
= func
;
448 static inline decl_arg
*locate_struct_member(decl_struct
*s
, decl_var
*var
) {
450 return locate_decl_var_arg(var
, s
->args
, NULL
);
455 static inline constant
*locate_num_exp_constant(num_exp
*exp
, constants
*consts
) {
458 for (i
= 0; i
< consts
->count
; ++i
) {
459 constant
*cnst
= consts
->list
[i
];
461 if (!strcmp(cnst
->name
, exp
->u
.numb
)) {
463 return exp
->u
.cnst
= cnst
;
469 static inline int validate_num_exp(PSI_Data
*data
, decl_args
*dargs
, decl_arg
*func
, num_exp
*exp
) {
471 switch (exp
->operator) {
473 exp
->calculator
= psi_calc_add
;
476 exp
->calculator
= psi_calc_sub
;
479 exp
->calculator
= psi_calc_mul
;
482 exp
->calculator
= psi_calc_div
;
484 EMPTY_SWITCH_DEFAULT_CASE();
486 if (!validate_num_exp(data
, dargs
, func
, exp
->operand
)) {
492 if (!locate_decl_var_arg(exp
->u
.dvar
, dargs
, func
)) {
493 data
->error(exp
->token
, PSI_WARNING
, "Unknown variable '%s' in numeric expression",
499 if (!locate_num_exp_constant(exp
, data
->consts
)) {
500 data
->error(exp
->token
, PSI_WARNING
, "Unknown constant '%s' in numeric expression",
511 static inline int validate_set_value_handler(set_value
*set
) {
512 switch (set
->func
->type
) {
514 set
->func
->handler
= psi_to_bool
;
517 set
->func
->handler
= psi_to_int
;
520 set
->func
->handler
= psi_to_double
;
522 case PSI_T_TO_STRING
:
523 set
->func
->handler
= psi_to_string
;
526 set
->func
->handler
= psi_to_array
;
528 case PSI_T_TO_OBJECT
:
529 set
->func
->handler
= psi_to_object
;
532 set
->func
->handler
= psi_to_void
;
535 if (set
->outer
.set
&& set
->outer
.set
->func
->type
== PSI_T_TO_ARRAY
) {
536 set
->func
->handler
= psi_to_recursive
;
537 set
->inner
= set
->outer
.set
->inner
;
538 set
->count
= set
->outer
.set
->count
;
547 static inline void decl_var_arg_v(decl_args
*args
, va_list argp
) {
551 memset(args
, 0, sizeof(*args
));
553 while ((argc
= va_arg(argp
, int))) {
554 argv
= va_arg(argp
, decl_arg
**);
556 add_decl_arg(args
, *argv
++);
560 static inline int validate_set_value_ex(PSI_Data
*data
, set_value
*set
, decl_arg
*ref
, decl_args
*ref_list
) {
563 decl_var
*set_var
= set
->vars
->vars
[0];
565 if (!validate_set_value_handler(set
)) {
566 data
->error(set
->func
->token
, PSI_WARNING
, "Invalid cast '%s' in `set` statement", set
->func
->name
);
570 for (i
= 0; i
< set
->vars
->count
; ++i
) {
571 decl_var
*svar
= set
->vars
->vars
[i
];
572 if (!svar
->arg
&& !locate_decl_var_arg(svar
, ref_list
, NULL
)) {
573 data
->error(svar
->token
, PSI_WARNING
, "Unknown variable '%s' in `set` statement", svar
->name
);
581 ref_type
= real_decl_type(ref
->type
);
584 int is_to_array
= (set
->func
->type
== PSI_T_TO_ARRAY
);
585 int is_pointer_to_struct
= (ref_type
->type
== PSI_T_STRUCT
&& ref
->var
->pointer_level
);
587 if (!is_to_array
&& !is_pointer_to_struct
) {
588 data
->error(set
->func
->token
, E_WARNING
, "Inner `set` statement casts only work with "
589 "to_array() casts on structs or pointers: %s(%s...", set
->func
->name
, set
->vars
->vars
[0]->name
);
594 if (!validate_num_exp(data
, ref_list
, ref
, set
->num
)) {
599 if (ref_type
->type
== PSI_T_STRUCT
) {
600 /* to_array(struct, to_...) */
601 if (!set
->outer
.set
|| set
->outer
.set
->inner
!= set
->inner
) {
602 for (i
= 0; i
< set
->count
; ++i
) {
603 decl_var
*sub_var
= set
->inner
[i
]->vars
->vars
[0];
604 decl_arg
*sub_ref
= locate_struct_member(ref_type
->strct
, sub_var
);
607 if (!validate_set_value_ex(data
, set
->inner
[i
], sub_ref
, ref_type
->strct
->args
)) {
613 } else if (set
->count
== 1) {
614 /* to_array(ptr, to_string(*ptr)) */
615 decl_var
*sub_var
= set
->inner
[0]->vars
->vars
[0];
616 decl_arg
*sub_ref
= locate_decl_var_arg(sub_var
, ref_list
, ref
);
619 if (strcmp(sub_var
->name
, set_var
->name
)) {
620 data
->error(sub_var
->token
, E_WARNING
, "Inner `set` statement casts on pointers must reference the same variable");
623 if (!validate_set_value_ex(data
, set
->inner
[0], sub_ref
, ref_list
)) {
627 } else if (set
->count
> 1) {
628 data
->error(set
->func
->token
, E_WARNING
, "Inner `set` statement casts on pointers may only occur once");
634 static inline int validate_set_value(PSI_Data
*data
, set_value
*set
, ...) {
636 decl_args args
= {0};
640 decl_var_arg_v(&args
, argp
);
643 check
= validate_set_value_ex(data
, set
, NULL
, &args
);
649 static inline decl
*locate_impl_decl(decls
*decls
, return_stmt
*ret
) {
653 for (i
= 0; i
< decls
->count
; ++i
) {
654 if (!strcmp(decls
->list
[i
]->func
->var
->name
, ret
->set
->vars
->vars
[0]->name
)) {
655 ret
->decl
= decls
->list
[i
]->func
;
656 return decls
->list
[i
];
663 static inline int validate_impl_ret_stmt(PSI_Data
*data
, impl
*impl
) {
666 /* we must have exactly one ret stmt delcaring the native func to call */
667 /* and which type cast to apply */
668 if (impl
->stmts
->ret
.count
!= 1) {
669 if (impl
->stmts
->ret
.count
> 1) {
670 data
->error(impl
->stmts
->ret
.list
[1]->token
, PSI_WARNING
,
671 "Too many `return` statements for implmentation %s;"
672 " found %zu, exactly one is needed",
673 impl
->func
->name
, impl
->stmts
->ret
.count
);
675 data
->error(impl
->func
->token
, PSI_WARNING
,
676 "Missing `return` statement for implementation %s",
682 ret
= impl
->stmts
->ret
.list
[0];
684 if (!(impl
->decl
= locate_impl_decl(data
->decls
, ret
))) {
685 data
->error(ret
->token
, PSI_WARNING
,
686 "Missing declaration '%s' for `return` statment for implementation %s",
687 ret
->set
->vars
->vars
[0]->name
, impl
->func
->name
);
691 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)) {
695 impl
->decl
->impl
= impl
;
700 static inline int validate_impl_let_stmts(PSI_Data
*data
, impl
*impl
) {
702 /* we can have multiple let stmts */
704 /* check that we have a decl arg for every let stmt */
705 for (i
= 0; i
< impl
->stmts
->let
.count
; ++i
) {
706 let_stmt
*let
= impl
->stmts
->let
.list
[i
];
710 if (let
->val
&& let
->val
->kind
== PSI_LET_TMP
) {
711 let_var
= let
->val
->data
.var
;
716 if (!locate_decl_var_arg(let_var
, impl
->decl
->args
, impl
->decl
->func
)) {
717 data
->error(let_var
->token
, PSI_WARNING
, "Unknown variable '%s' in `let` statement"
718 " of implementation '%s'", let_var
->name
, impl
->func
->name
);
722 switch (let
->val
->kind
) {
726 /* e.g. let bar = &strval($bar); // decl_arg(char **bar) */
727 /* e.g. let foo = *bar; */
728 let
->var
->pointer_level
= let
->val
->data
.var
->pointer_level
;
729 let
->var
->arg
= init_decl_arg(
731 real_decl_type(let
->val
->data
.var
->arg
->type
)->type
,
732 real_decl_type(let
->val
->data
.var
->arg
->type
)->name
),
735 let
->var
->pointer_level
,
736 let
->var
->array_size
));
739 if (!validate_num_exp(data
, impl
->decl
->args
, impl
->decl
->func
, let
->val
->data
.num
)) {
744 if (!validate_num_exp(data
, impl
->decl
->args
, impl
->decl
->func
, let
->val
->data
.alloc
->nmemb
)) {
747 if (!validate_num_exp(data
, impl
->decl
->args
, impl
->decl
->func
, let
->val
->data
.alloc
->size
)) {
752 if (impl
->func
->args
) {
753 for (j
= 0; j
< impl
->func
->args
->count
; ++j
) {
754 impl_arg
*iarg
= impl
->func
->args
->args
[j
];
756 if (!strcmp(let
->val
->data
.func
->var
->name
, iarg
->var
->name
)) {
757 let
->val
->data
.func
->arg
= iarg
;
764 data
->error(let
->var
->token
, PSI_WARNING
, "Unknown value '$%s' of `let` statement"
765 " for variable '%s' of implementation '%s'",
766 let
->val
->data
.func
->var
->name
, let
->var
->name
, impl
->func
->name
);
773 /* check that we have a let stmt for every decl arg */
774 if (impl
->decl
->args
) for (i
= 0; i
< impl
->decl
->args
->count
; ++i
) {
775 decl_arg
*darg
= impl
->decl
->args
->args
[i
];
778 for (j
= 0; j
< impl
->stmts
->let
.count
; ++j
) {
779 let_stmt
*let
= impl
->stmts
->let
.list
[j
];
781 if (!strcmp(let
->var
->name
, darg
->var
->name
)) {
788 data
->error(impl
->func
->token
, PSI_WARNING
,
789 "Missing `let` statement for arg '%s %.*s%s'"
790 " of declaration '%s' for implementation '%s'",
791 darg
->type
->name
, (int) darg
->var
->pointer_level
, "*****",
792 darg
->var
->name
, impl
->decl
->func
->var
->name
, impl
->func
->name
);
799 static inline int validate_impl_set_stmts(PSI_Data
*data
, impl
*impl
) {
801 /* we can have any count of set stmts; processing out vars */
802 /* check that set stmts reference known variables */
803 for (i
= 0; i
< impl
->stmts
->set
.count
; ++i
) {
804 set_stmt
*set
= impl
->stmts
->set
.list
[i
];
807 if (impl
->func
->args
) for (j
= 0; j
< impl
->func
->args
->count
; ++j
) {
808 impl_arg
*iarg
= impl
->func
->args
->args
[j
];
810 if (!strcmp(set
->var
->name
, iarg
->var
->name
)) {
817 data
->error(set
->var
->token
, PSI_WARNING
, "Unknown variable '$%s' of `set` statement"
818 " of implementation '%s'",
819 set
->var
->name
, impl
->func
->name
);
823 for (j
= 0; j
< set
->val
->vars
->count
; ++j
) {
824 decl_var
*set_var
= set
->val
->vars
->vars
[j
];
827 if (impl
->decl
->args
) {
828 for (k
= 0; k
< impl
->decl
->args
->count
; ++k
) {
829 decl_arg
*set_arg
= impl
->decl
->args
->args
[k
];
831 if (!strcmp(set_var
->name
, set_arg
->var
->name
)) {
833 set_var
->arg
= set_arg
;
834 if (!validate_set_value(data
, set
->val
, 1, &set_arg
, 1, &impl
->decl
->func
, impl
->decl
->args
->count
, impl
->decl
->args
->args
, 0)) {
842 for (k
= 0; k
< impl
->stmts
->let
.count
; ++k
) {
843 let_stmt
*let
= impl
->stmts
->let
.list
[k
];
845 /* check temp vars */
846 if (let
->val
&& let
->val
->kind
== PSI_LET_TMP
) {
847 if (!strcmp(set_var
->name
, let
->var
->name
)) {
849 set_var
->arg
= let
->var
->arg
;
850 if (!validate_set_value(data
, set
->val
, 1, &set_var
->arg
, 1, &impl
->decl
->func
, impl
->decl
->args
->count
, impl
->decl
->args
->args
, 0)) {
860 data
->error(set_var
->token
, PSI_WARNING
, "Unknown value '%s' of `set` statement"
861 " for variable '$%s' of implementation '%s'",
862 set_var
->name
, set
->arg
->var
->name
, impl
->func
->name
);
869 static inline decl
*locate_free_decl(decls
*decls
, free_call
*f
) {
873 for (i
= 0; i
< decls
->count
; ++i
) {
874 if (!strcmp(decls
->list
[i
]->func
->var
->name
, f
->func
)) {
875 f
->decl
= decls
->list
[i
];
876 return decls
->list
[i
];
883 static inline int validate_impl_free_stmts(PSI_Data
*data
, impl
*impl
) {
885 /* we can have any count of free stmts; freeing any out vars */
886 for (i
= 0; i
< impl
->stmts
->fre
.count
; ++i
) {
887 free_stmt
*fre
= impl
->stmts
->fre
.list
[i
];
889 for (j
= 0; j
< fre
->calls
->count
; ++j
) {
890 free_call
*free_call
= fre
->calls
->list
[j
];
892 /* first find the decl of the free func */
893 if (!locate_free_decl(data
->decls
, free_call
)) {
894 data
->error(free_call
->token
, PSI_WARNING
,
895 "Missing declaration '%s' in `free` statement"
896 " of implementation '%s'",
897 free_call
->func
, impl
->func
->name
);
903 /* now check for known vars */
904 for (l
= 0; l
< free_call
->vars
->count
; ++l
) {
906 decl_var
*free_var
= free_call
->vars
->vars
[l
];
908 if (!strcmp(free_var
->name
, impl
->decl
->func
->var
->name
)) {
910 free_var
->arg
= impl
->decl
->func
;
911 } else if (impl
->decl
->args
) {
912 for (k
= 0; k
< impl
->decl
->args
->count
; ++k
) {
913 decl_arg
*free_arg
= impl
->decl
->args
->args
[k
];
915 if (!strcmp(free_var
->name
, free_arg
->var
->name
)) {
917 free_var
->arg
= free_arg
;
924 data
->error(free_var
->token
, PSI_WARNING
,
925 "Unknown variable '%s' of `free` statement"
926 " of implementation '%s'",
927 free_var
->name
, impl
->func
->name
);
935 static inline int validate_impl_stmts(PSI_Data
*data
, impl
*impl
) {
937 data
->error(impl
->func
->token
, PSI_WARNING
,
938 "Missing body for implementation %s!",
943 if (!validate_impl_ret_stmt(data
, impl
)) {
947 if (!validate_impl_let_stmts(data
, impl
)) {
950 if (!validate_impl_set_stmts(data
, impl
)) {
953 if (!validate_impl_free_stmts(data
, impl
)) {
960 static inline int validate_impl_args(PSI_Data
*data
, impl
*impl
) {
964 for (i
= 0; i
< impl
->func
->args
->count
; ++i
) {
965 impl_arg
*iarg
= impl
->func
->args
->args
[i
];
970 data
->error(impl
->func
->token
, PSI_WARNING
,
971 "Non-optional argument %zu '$%s' of implementation '%s'"
972 " follows optional argument",
973 i
+1, iarg
->var
->name
, impl
->func
->name
);
980 static inline int validate_impl(PSI_Data
*data
, impl
*impl
) {
981 if (!validate_impl_args(data
, impl
)) {
984 return validate_impl_stmts(data
, impl
);
987 PSI_Context
*PSI_ContextInit(PSI_Context
*C
, PSI_ContextOps
*ops
, PSI_ContextErrorFunc error
)
991 struct psi_predef_type
*predef_type
;
992 struct psi_predef_const
*predef_const
;
993 struct psi_predef_struct
*predef_struct
;
994 struct psi_predef_decl
*predef_decl
;
997 C
= malloc(sizeof(*C
));
999 memset(C
, 0, sizeof(*C
));
1008 ZEND_ASSERT(ops
->call
!= NULL
);
1009 ZEND_ASSERT(ops
->compile
!= NULL
);
1011 /* build up predefs in a temporary PSI_Data for validation */
1012 memset(&T
, 0, sizeof(T
));
1015 for (predef_type
= &psi_predef_types
[0]; predef_type
->type_tag
; ++predef_type
) {
1016 decl_type
*type
= init_decl_type(predef_type
->type_tag
, predef_type
->type_name
);
1017 decl_typedef
*def
= init_decl_typedef(predef_type
->alias
, type
);
1019 T
.defs
= add_decl_typedef(T
.defs
, def
);
1021 for (predef_const
= &psi_predef_consts
[0]; predef_const
->type_tag
; ++predef_const
) {
1022 impl_def_val
*val
= init_impl_def_val(predef_const
->val_type_tag
, predef_const
->val_text
);
1023 const_type
*type
= init_const_type(predef_const
->type_tag
, predef_const
->type_name
);
1024 constant
*constant
= init_constant(type
, predef_const
->var_name
, val
);
1026 T
.consts
= add_constant(T
.consts
, constant
);
1028 for (predef_struct
= &psi_predef_structs
[0]; predef_struct
->type_tag
; ++predef_struct
) {
1029 struct psi_predef_struct
*member
;
1030 decl_args
*dargs
= init_decl_args(NULL
);
1031 decl_struct
*dstruct
= init_decl_struct(predef_struct
->var_name
, dargs
);
1033 dstruct
->size
= predef_struct
->size
;
1034 for (member
= &predef_struct
[1]; member
->type_tag
; ++member
) {
1039 type
= init_decl_type(member
->type_tag
, member
->type_name
);
1040 dvar
= init_decl_var(member
->var_name
, member
->pointer_level
, member
->array_size
);
1041 darg
= init_decl_arg(type
, dvar
);
1042 darg
->layout
= init_decl_struct_layout(member
->offset
, member
->size
);
1043 dargs
= add_decl_arg(dargs
, darg
);
1046 T
.structs
= add_decl_struct(T
.structs
, dstruct
);
1047 predef_struct
= member
;
1049 for (predef_decl
= &psi_predef_decls
[0]; predef_decl
->type_tag
; ++predef_decl
) {
1050 struct psi_predef_decl
*farg
;
1051 decl_type
*ftype
= init_decl_type(predef_decl
->type_tag
, predef_decl
->type_name
);
1052 decl_var
*fname
= init_decl_var(predef_decl
->var_name
, predef_decl
->pointer_level
, predef_decl
->array_size
);
1053 decl_arg
*func
= init_decl_arg(ftype
, fname
);
1054 decl_args
*args
= init_decl_args(NULL
);
1055 decl
*decl
= init_decl(init_decl_abi("default"), func
, args
);
1057 for (farg
= &predef_decl
[1]; farg
->type_tag
; ++farg
) {
1058 decl_type
*arg_type
= init_decl_type(farg
->type_tag
, farg
->type_name
);
1059 decl_var
*arg_var
= init_decl_var(farg
->var_name
, farg
->pointer_level
, farg
->array_size
);
1060 decl_arg
*darg
= init_decl_arg(arg_type
, arg_var
);
1061 args
= add_decl_arg(args
, darg
);
1064 T
.decls
= add_decl(T
.decls
, decl
);
1068 for (predef_decl
= &psi_predef_vararg_decls
[0]; predef_decl
->type_tag
; ++predef_decl
) {
1069 struct psi_predef_decl
*farg
;
1070 decl_type
*ftype
= init_decl_type(predef_decl
->type_tag
, predef_decl
->type_name
);
1071 decl_var
*fname
= init_decl_var(predef_decl
->var_name
, predef_decl
->pointer_level
, predef_decl
->array_size
);
1072 decl_arg
*func
= init_decl_arg(ftype
, fname
);
1073 decl_args
*args
= init_decl_args(NULL
);
1074 decl
*decl
= init_decl(init_decl_abi("default"), func
, args
);
1076 for (farg
= &predef_decl
[1]; farg
->type_tag
; ++farg
) {
1077 decl_type
*arg_type
= init_decl_type(farg
->type_tag
, farg
->type_name
);
1078 decl_var
*arg_var
= init_decl_var(farg
->var_name
, farg
->pointer_level
, farg
->array_size
);
1079 decl_arg
*darg
= init_decl_arg(arg_type
, arg_var
);
1080 args
= add_decl_arg(args
, darg
);
1084 T
.decls
= add_decl(T
.decls
, decl
);
1088 for (i
= 0; i
< T
.defs
->count
; ++i
) {
1089 decl_typedef
*def
= T
.defs
->list
[i
];
1091 if (validate_decl_typedef(&T
, def
)) {
1092 C
->defs
= add_decl_typedef(C
->defs
, def
);
1096 for (i
= 0; i
< T
.consts
->count
; ++i
) {
1097 constant
*constant
= T
.consts
->list
[i
];
1099 if (validate_constant(&T
, constant
)) {
1100 C
->consts
= add_constant(C
->consts
, constant
);
1104 for (i
= 0; i
< T
.structs
->count
; ++i
) {
1105 decl_struct
*dstruct
= T
.structs
->list
[i
];
1107 if (validate_decl_struct(&T
, dstruct
)) {
1108 C
->structs
= add_decl_struct(C
->structs
, dstruct
);
1112 for (i
= 0; i
< T
.decls
->count
; ++i
) {
1113 decl
*decl
= T
.decls
->list
[i
];
1115 if (validate_decl(&T
, NULL
, decl
)) {
1116 C
->decls
= add_decl(C
->decls
, decl
);
1121 C
->data
= malloc(sizeof(*C
->data
));
1122 PSI_DataExchange(C
->data
, &T
);
1127 int PSI_ContextValidate(PSI_Context
*C
, PSI_Parser
*P
)
1130 void *dlopened
= NULL
;
1131 size_t count
= C
->count
++;
1133 C
->data
= realloc(C
->data
, C
->count
* sizeof(*C
->data
));
1134 D
= PSI_DataExchange(&C
->data
[count
], PSI_DATA(P
));
1139 for (i
= 0; i
< D
->defs
->count
; ++i
) {
1140 if (validate_decl_typedef(PSI_DATA(C
), D
->defs
->list
[i
])) {
1141 C
->defs
= add_decl_typedef(C
->defs
, D
->defs
->list
[i
]);
1148 for (i
= 0; i
< D
->structs
->count
; ++i
) {
1149 if (validate_decl_struct(PSI_DATA(C
), D
->structs
->list
[i
])) {
1150 C
->structs
= add_decl_struct(C
->structs
, D
->structs
->list
[i
]);
1157 for (i
= 0; i
< D
->consts
->count
; ++i
) {
1158 if (validate_constant(PSI_DATA(C
), D
->consts
->list
[i
])) {
1159 C
->consts
= add_constant(C
->consts
, D
->consts
->list
[i
]);
1164 if (!validate_lib(D
, &dlopened
)) {
1168 add_decl_lib(&C
->psi
.libs
, dlopened
);
1173 for (i
= 0; i
< D
->decls
->count
; ++i
) {
1174 if (validate_decl(PSI_DATA(C
), dlopened
, D
->decls
->list
[i
])) {
1175 C
->decls
= add_decl(C
->decls
, D
->decls
->list
[i
]);
1182 for (i
= 0; i
< D
->impls
->count
; ++i
) {
1183 if (validate_impl(PSI_DATA(C
), D
->impls
->list
[i
])) {
1184 C
->impls
= add_impl(C
->impls
, D
->impls
->list
[i
]);
1192 static int psi_select_dirent(const struct dirent
*entry
)
1194 #ifndef FNM_CASEFOLD
1195 #define FNM_CASEFOLD 0
1197 return 0 == fnmatch("*.psi", entry
->d_name
, FNM_CASEFOLD
);
1200 void PSI_ContextBuild(PSI_Context
*C
, const char *paths
)
1202 int i
, n
, flags
= psi_check_env("PSI_DEBUG") ? PSI_PARSER_DEBUG
: 0;
1203 char *sep
= NULL
, *cpy
= strdup(paths
), *ptr
= cpy
;
1204 struct dirent
**entries
= NULL
;
1208 sep
= strchr(ptr
, ':');
1214 n
= php_scandir(ptr
, &entries
, psi_select_dirent
, alphasort
);
1217 for (i
= 0; i
< n
; ++i
) {
1218 char psi
[MAXPATHLEN
];
1221 if (MAXPATHLEN
<= slprintf(psi
, MAXPATHLEN
, "%s/%s", ptr
, entries
[i
]->d_name
)) {
1222 C
->error(NULL
, PSI_WARNING
, "Path to PSI file too long: %s/%s",
1223 ptr
, entries
[i
]->d_name
);
1225 if (!PSI_ParserInit(&P
, psi
, C
->error
, flags
)) {
1226 C
->error(NULL
, PSI_WARNING
, "Failed to init PSI parser (%s): %s",
1227 psi
, strerror(errno
));
1231 while (0 < PSI_ParserScan(&P
)) {
1232 PSI_ParserParse(&P
, PSI_TokenAlloc(&P
));
1233 if (P
.num
== PSI_T_EOF
) {
1238 PSI_ParserParse(&P
, NULL
);
1239 PSI_ContextValidate(C
, &P
);
1245 for (i
= 0; i
< n
; ++i
) {
1255 if (PSI_ContextCompile(C
) && SUCCESS
!= zend_register_functions(NULL
, C
->closures
, NULL
, MODULE_PERSISTENT
)) {
1256 C
->error(NULL
, PSI_WARNING
, "Failed to register functions!");
1263 zend_function_entry
*PSI_ContextCompile(PSI_Context
*C
)
1270 zc
.flags
= CONST_PERSISTENT
|CONST_CS
;
1271 zc
.module_number
= EG(current_module
)->module_number
;
1273 for (i
= 0; i
< C
->consts
->count
; ++i
) {
1274 constant
*c
= C
->consts
->list
[i
];
1276 zc
.name
= zend_string_init(c
->name
+ (c
->name
[0] == '\\'), strlen(c
->name
) - (c
->name
[0] == '\\'), 1);
1277 ZVAL_NEW_STR(&zc
.value
, zend_string_init(c
->val
->text
, strlen(c
->val
->text
), 1));
1279 switch (c
->type
->type
) {
1281 convert_to_boolean(&zc
.value
);
1284 convert_to_long(&zc
.value
);
1287 convert_to_double(&zc
.value
);
1290 zend_register_constant(&zc
);
1294 return C
->closures
= C
->ops
->compile(C
);
1298 void PSI_ContextCall(PSI_Context
*C
, decl_callinfo
*decl_call
, impl_vararg
*va
)
1300 C
->ops
->call(C
, decl_call
, va
);
1303 static inline void dump_decl_type(int fd
, decl_type
*t
) {
1313 dprintf(fd
, "%s%s", pre
, t
->name
);
1315 static inline void dump_decl_var(int fd
, decl_var
*v
) {
1316 dprintf(fd
, "%.*s%s", v
->pointer_level
-!!v
->array_size
, "**********", v
->name
);
1317 if (v
->array_size
) {
1318 dprintf(fd
, "[%u]", v
->array_size
);
1321 static inline void dump_decl_arg(int fd
, decl_arg
*a
) {
1322 dump_decl_type(fd
, a
->type
);
1324 dump_decl_var(fd
, a
->var
);
1326 static inline void dump_level(int fd
, unsigned level
) {
1327 dprintf(fd
, "%.*s", level
, "\t\t\t\t\t\t\t\t\t");
1329 static inline void dump_num_exp(int fd
, num_exp
*exp
) {
1333 dprintf(fd
, "%s", exp
->u
.numb
);
1336 dprintf(fd
, "%s", exp
->u
.cnst
->name
);
1339 dump_decl_var(fd
, exp
->u
.dvar
);
1341 EMPTY_SWITCH_DEFAULT_CASE();
1346 switch (exp
->operator) {
1347 case PSI_T_PLUS
: op
= '+'; break;
1348 case PSI_T_MINUS
: op
= '-'; break;
1349 case PSI_T_ASTERISK
:op
= '*'; break;
1350 case PSI_T_SLASH
: op
= '/'; break;
1351 EMPTY_SWITCH_DEFAULT_CASE();
1353 dprintf(fd
, " %c ", op
);
1359 static inline void dump_impl_set_value(int fd
, set_value
*set
, unsigned level
) {
1363 /* only if not directly after `set ...` */
1364 dump_level(fd
, level
);
1367 if (set
->func
->type
== PSI_T_ELLIPSIS
) {
1368 dprintf(fd
, "%s(", set
->outer
.set
->func
->name
);
1370 dprintf(fd
, "%s(", set
->func
->name
);
1373 for (i
= 0; i
< set
->vars
->count
; ++i
) {
1374 decl_var
*svar
= set
->vars
->vars
[i
];
1378 dump_decl_var(fd
, svar
);
1381 if (set
->func
->type
== PSI_T_ELLIPSIS
) {
1382 dprintf(fd
, ", ...");
1386 dump_num_exp(fd
, set
->num
);
1390 for (i
= 0; i
< set
->count
; ++i
) {
1391 dump_impl_set_value(fd
, set
->inner
[i
], level
+1);
1393 /* only if inner stmts, i.e. with new lines, were dumped */
1394 dump_level(fd
, level
);
1397 dprintf(fd
, "),\n");
1399 dprintf(fd
, ");\n");
1402 void PSI_ContextDump(PSI_Context
*C
, int fd
)
1407 if (C
->ops
== PSI_Libjit()) {
1408 dprintf(fd
, "// psi.engine=jit\n");
1412 if (C
->ops
== PSI_Libffi()) {
1413 dprintf(fd
, "// psi.engine=ffi\n");
1419 for (i
= 0; i
< C
->defs
->count
; ++i
) {
1420 decl_typedef
*tdef
= C
->defs
->list
[i
];
1422 dprintf(fd
, "typedef ");
1423 dump_decl_type(fd
, tdef
->type
);
1424 dprintf(fd
, " %s;\n", tdef
->alias
);
1430 for (i
= 0; i
< C
->structs
->count
; ++i
) {
1431 decl_struct
*strct
= C
->structs
->list
[i
];
1433 dprintf(fd
, "struct %s::(%zu) {\n", strct
->name
, strct
->size
);
1434 if (strct
->args
) for (j
= 0; j
< strct
->args
->count
; ++j
) {
1435 decl_arg
*sarg
= strct
->args
->args
[j
];
1438 dump_decl_arg(fd
, sarg
);
1439 dprintf(fd
, "::(%zu, %zu);\n", sarg
->layout
->pos
, sarg
->layout
->len
);
1446 for (i
= 0; i
< C
->consts
->count
; ++i
) {
1447 constant
*cnst
= C
->consts
->list
[i
];
1449 dprintf(fd
, "const %s %s = ", cnst
->type
->name
, cnst
->name
);
1450 if (cnst
->val
->type
== PSI_T_QUOTED_STRING
) {
1451 dprintf(fd
, "\"%s\";\n", cnst
->val
->text
);
1453 dprintf(fd
, "%s;\n", cnst
->val
->text
);
1459 for (i
= 0; i
< C
->decls
->count
; ++i
) {
1460 decl
*decl
= C
->decls
->list
[i
];
1462 dprintf(fd
, "%s ", decl
->abi
->convention
);
1463 dump_decl_arg(fd
, decl
->func
);
1466 for (j
= 0; j
< decl
->args
->count
; ++j
) {
1470 dump_decl_arg(fd
, decl
->args
->args
[j
]);
1472 if (decl
->args
->varargs
) {
1473 dprintf(fd
, ", ...");
1476 dprintf(fd
, ");\n");
1481 for (i
= 0; i
< C
->impls
->count
; ++i
) {
1482 impl
*impl
= C
->impls
->list
[i
];
1484 dprintf(fd
, "function %s(", impl
->func
->name
);
1485 if (impl
->func
->args
) {
1486 for (j
= 0; j
< impl
->func
->args
->count
; ++j
) {
1487 impl_arg
*iarg
= impl
->func
->args
->args
[j
];
1489 dprintf(fd
, "%s%s %s$%s",
1492 iarg
->var
->reference
? "&" : "",
1495 dprintf(fd
, " = %s", iarg
->def
->text
);
1498 if (impl
->func
->args
->vararg
.name
) {
1499 impl_arg
*vararg
= impl
->func
->args
->vararg
.name
;
1501 dprintf(fd
, ", %s %s...$%s",
1503 vararg
->var
->reference
? "&" : "",
1507 dprintf(fd
, ") : %s%s {\n",
1508 impl
->func
->return_reference
? "&":"",
1509 impl
->func
->return_type
->name
);
1511 for (j
= 0; j
< impl
->stmts
->let
.count
; ++j
) {
1512 let_stmt
*let
= impl
->stmts
->let
.list
[j
];
1514 dprintf(fd
, "\tlet %s", let
->var
->name
);
1516 dprintf(fd
, " = %s", let
->val
->flags
.one
.is_reference
? "&" : "");
1517 switch (let
->val
->kind
) {
1519 dprintf(fd
, "NULL");
1522 dump_decl_var(fd
, let
->val
->data
.var
);
1524 case PSI_LET_CALLOC
:
1525 dprintf(fd
, "calloc(");
1526 dump_num_exp(fd
, let
->val
->data
.alloc
->nmemb
);
1528 dump_num_exp(fd
, let
->val
->data
.alloc
->size
);
1532 dprintf(fd
, "%s($%s)", let
->val
->data
.func
->name
,
1533 let
->val
->data
.func
->var
->name
);
1536 EMPTY_SWITCH_DEFAULT_CASE();
1541 for (j
= 0; j
< impl
->stmts
->ret
.count
; ++j
) {
1542 return_stmt
*ret
= impl
->stmts
->ret
.list
[j
];
1544 dprintf(fd
, "\treturn ");
1545 dump_impl_set_value(fd
, ret
->set
, 1);
1547 for (j
= 0; j
< impl
->stmts
->set
.count
; ++j
) {
1548 set_stmt
*set
= impl
->stmts
->set
.list
[j
];
1550 dprintf(fd
, "\tset $%s = ", set
->var
->name
);
1551 dump_impl_set_value(fd
, set
->val
, 1);
1553 for (j
= 0; j
< impl
->stmts
->fre
.count
; ++j
) {
1554 free_stmt
*fre
= impl
->stmts
->fre
.list
[j
];
1556 dprintf(fd
, "\tfree ");
1557 for (k
= 0; k
< fre
->calls
->count
; ++k
) {
1558 free_call
*call
= fre
->calls
->list
[k
];
1563 dprintf(fd
, "%s(", call
->func
);
1564 for (l
= 0; l
< call
->vars
->count
; ++l
) {
1565 decl_var
*fvar
= call
->vars
->vars
[l
];
1567 dump_decl_var(fd
, fvar
);
1569 dprintf(fd
, ");\n");
1579 void PSI_ContextDtor(PSI_Context
*C
)
1582 zend_function_entry
*zfe
;
1588 free_decl_libs(&C
->psi
.libs
);
1591 for (i
= 0; i
< C
->count
; ++i
) {
1592 PSI_DataDtor(&C
->data
[i
]);
1598 for (zfe
= C
->closures
; zfe
->fname
; ++zfe
) {
1599 free((void *) zfe
->arg_info
);
1605 if (C
->consts
->list
) {
1606 free(C
->consts
->list
);
1611 if (C
->defs
->list
) {
1612 free(C
->defs
->list
);
1617 if (C
->structs
->list
) {
1618 free(C
->structs
->list
);
1623 if (C
->decls
->list
) {
1624 free(C
->decls
->list
);
1629 if (C
->impls
->list
) {
1630 free(C
->impls
->list
);
1635 memset(C
, 0, sizeof(*C
));
1638 void PSI_ContextFree(PSI_Context
**C
)
1641 PSI_ContextDtor(*C
);