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>
86 # define NAMLEN(dirent) strlen ((dirent)->d_name)
88 # define dirent direct
89 # define NAMLEN(dirent) ((dirent)->d_namlen)
90 # ifdef HAVE_SYS_NDIR_H
91 # include <sys/ndir.h>
93 # ifdef HAVE_SYS_DIR_H
101 #include <sys/param.h>
106 #include "php_scandir.h"
112 static struct psi_std_type
{
114 const char *type_name
;
115 } psi_std_types
[] = {
116 {PSI_T_FLOAT
, "float"},
117 {PSI_T_DOUBLE
, "double"},
118 {PSI_T_INT8
, "int8_t"},
119 {PSI_T_INT16
, "int16_t"},
120 {PSI_T_INT32
, "int32_t"},
121 {PSI_T_INT64
, "int64_t"},
122 {PSI_T_UINT8
, "uint8_t"},
123 {PSI_T_UINT16
, "uint16_t"},
124 {PSI_T_UINT32
, "uint32_t"},
125 {PSI_T_UINT64
, "uint64_t"},
129 static struct psi_predef_type
{
131 const char *type_name
;
133 } psi_predef_types
[] = {
138 static struct psi_predef_const
{
140 const char *type_name
;
141 const char *var_name
;
142 const char *val_text
;
143 token_t val_type_tag
;
144 } psi_predef_consts
[] = {
151 int psi_glob(const char *pattern
, int flags
,
152 int (*errfunc
) (const char *epath
, int eerrno
),
154 size_t offs
= flags
& GLOB_DOOFFS
? pglob
->gl_offs
: 0;
155 int rv
= glob(pattern
, flags
, errfunc
, pglob
);
156 if (pglob
->gl_pathv
) {
158 pglob
->gl_pathv
[offs
] = NULL
;
164 int psi_printf(const char *fmt
, ...) {
171 a1
= va_arg(ap2
, char *);
172 rs
= vprintf(fmt
, ap1
);
178 static struct psi_func_redir
{
181 } psi_func_redirs
[] = {
182 {"glob", (void (*)(void)) psi_glob
},
183 {"printf", (void (*)(void)) psi_printf
},
188 static struct psi_predef_decl
{
190 const char *type_name
;
191 const char *var_name
;
192 size_t pointer_level
;
194 } psi_predef_decls
[] = {
199 static struct psi_predef_struct
{
201 const char *type_name
;
202 const char *var_name
;
205 size_t pointer_level
;
207 } psi_predef_structs
[] = {
212 static int validate_lib(PSI_Data
*data
, void **dlopened
) {
213 char lib
[MAXPATHLEN
];
214 const char *ptr
= data
->psi
.file
.ln
;
218 /* FIXME: assume stdlib */
220 } else if (!strchr(ptr
, '/')) {
221 len
= snprintf(lib
, MAXPATHLEN
, "lib%s.%s", ptr
, PHP_PSI_SHLIB_SUFFIX
);
222 if (MAXPATHLEN
== len
) {
223 data
->error(PSI_WARNING
, "Library name too long: '%s'", ptr
);
228 if (!(*dlopened
= dlopen(ptr
, RTLD_LAZY
|RTLD_LOCAL
))) {
229 data
->error(PSI_WARNING
, "Could not open library '%s': %s.",
230 data
->psi
.file
.ln
, dlerror());
236 static inline int locate_decl_type_alias(decl_typedefs
*defs
, decl_type
*type
) {
238 struct psi_std_type
*stdtyp
;
243 for (i
= 0; i
< defs
->count
; ++i
) {
244 decl_typedef
*def
= defs
->list
[i
];
246 if (def
->type
->type
!= type
->type
&& !strcmp(def
->alias
, type
->name
)) {
247 type
->real
= def
->type
;
251 for (stdtyp
= &psi_std_types
[0]; stdtyp
->type_tag
; ++stdtyp
) {
252 if (!strcmp(type
->name
, stdtyp
->type_name
)) {
253 type
->type
= stdtyp
->type_tag
;
260 static inline int locate_decl_type_struct(decl_structs
*structs
, decl_type
*type
) {
266 for (i
= 0; i
< structs
->count
; ++i
) {
267 if (!strcmp(structs
->list
[i
]->name
, type
->name
)) {
268 type
->strct
= structs
->list
[i
];
275 static inline int validate_decl_type(PSI_Data
*data
, decl_type
*type
) {
276 switch (type
->type
) {
278 if (!data
->defs
|| !locate_decl_type_alias(data
->defs
, type
)) {
282 return validate_decl_type(data
, type
->real
);
286 if (!data
->structs
|| !locate_decl_type_struct(data
->structs
, type
)) {
293 static inline int validate_decl_typedef(PSI_Data
*data
, decl_typedef
*def
) {
294 if (!validate_decl_type(data
, def
->type
)) {
295 data
->error(PSI_WARNING
, "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(PSI_WARNING
, "Cannot use '%s'(%d) as type for decl var '%s'"
311 " in %s on line %zu at col %zu",
312 arg
->type
->name
, arg
->type
->type
, arg
->var
->name
,
313 arg
->type
->token
->file
, arg
->type
->token
->line
, arg
->type
->token
->col
);
319 static inline int validate_decl_struct(PSI_Data
*data
, decl_struct
*s
) {
322 for (i
= 0; i
< s
->args
->count
; ++i
) {
323 if (!validate_decl_arg(data
, s
->args
->args
[i
])) {
328 for (i
= 0; i
< s
->args
->count
; ++i
) {
329 decl_arg
*darg
= s
->args
->args
[i
];
331 if (!validate_decl_arg(data
, darg
)) {
335 ZEND_ASSERT(!darg
->var
->arg
|| darg
->var
->arg
== darg
);
336 darg
->var
->arg
= darg
;
341 if (darg
->var
->pointer_level
&& (!darg
->var
->array_size
|| darg
->var
->pointer_level
== 1)) {
344 t
= real_decl_type(darg
->type
)->type
;
348 decl_arg
*last
= s
->args
->args
[i
-1];
349 darg
->layout
= init_decl_struct_layout(
350 psi_t_align(t
, last
->layout
->pos
+ last
->layout
->len
),
351 psi_t_size(t
) * darg
->var
->array_size
);
353 darg
->layout
= init_decl_struct_layout(0, psi_t_size(t
));
356 if (s
->size
< darg
->layout
->pos
+ darg
->layout
->len
) {
357 s
->size
= darg
->layout
->pos
+ darg
->layout
->len
;
363 static const char * const abi_ccs
[] = {
365 "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
])) {
378 data
->error(PSI_WARNING
, "Invalid calling convention: '%s'", abi
->convention
);
381 static inline int validate_decl_func(PSI_Data
*data
, void *dl
, decl
*decl
, decl_arg
*func
)
383 struct psi_func_redir
*redir
;
385 if (!strcmp(func
->var
->name
, "dlsym")) {
386 data
->error(PSI_WARNING
, "Cannot dlsym dlsym (sic!)");
390 if (!validate_decl_arg(data
, func
)) {
393 for (redir
= &psi_func_redirs
[0]; redir
->name
; ++redir
) {
394 if (!strcmp(func
->var
->name
, redir
->name
)) {
395 decl
->call
.sym
= redir
->func
;
398 if (!decl
->call
.sym
) {
400 # define RTLD_NEXT ((void *) -1l)
402 decl
->call
.sym
= dlsym(dl
?: RTLD_NEXT
, func
->var
->name
);
403 if (!decl
->call
.sym
) {
404 data
->error(PSI_WARNING
, "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
)) {
415 if (!validate_decl_func(data
, dl
, decl
, decl
->func
)) {
421 for (i
= 0; i
< decl
->args
->count
; ++i
) {
422 if (!validate_decl_arg(data
, decl
->args
->args
[i
])) {
429 static inline decl_arg
*locate_decl_var_arg(decl_var
*var
, decl_args
*args
, decl_arg
*func
) {
432 for (i
= 0; i
< args
->count
; ++i
) {
433 decl_arg
*arg
= args
->args
[i
];
435 if (!strcmp(var
->name
, arg
->var
->name
)) {
436 ZEND_ASSERT(!var
->arg
|| var
->arg
== arg
);
437 return var
->arg
= arg
;
440 if (func
&& !strcmp(var
->name
, func
->var
->name
)) {
441 return var
->arg
= func
;
446 static inline decl_arg
*locate_struct_member(decl_struct
*s
, decl_var
*var
) {
448 return locate_decl_var_arg(var
, s
->args
, NULL
);
453 static inline constant
*locate_num_exp_constant(num_exp
*exp
, constants
*consts
) {
456 for (i
= 0; i
< consts
->count
; ++i
) {
457 constant
*cnst
= consts
->list
[i
];
459 if (!strcmp(cnst
->name
, exp
->u
.numb
)) {
461 return exp
->u
.cnst
= cnst
;
467 static inline int validate_num_exp(PSI_Data
*data
, decl_args
*dargs
, decl_arg
*func
, num_exp
*exp
) {
469 switch (exp
->operator) {
471 exp
->calculator
= psi_calc_add
;
474 exp
->calculator
= psi_calc_sub
;
477 exp
->calculator
= psi_calc_mul
;
480 exp
->calculator
= psi_calc_div
;
482 EMPTY_SWITCH_DEFAULT_CASE();
484 if (!validate_num_exp(data
, dargs
, func
, exp
->operand
)) {
490 if (!locate_decl_var_arg(exp
->u
.dvar
, dargs
, func
)) {
491 data
->error(PSI_WARNING
, "Unknown variable '%s' in numeric expression",
497 if (!locate_num_exp_constant(exp
, data
->consts
)) {
498 data
->error(PSI_WARNING
, "Unknown constant '%s' in numeric expression",
509 static inline int validate_set_value_handler(set_value
*set
) {
510 switch (set
->func
->type
) {
512 set
->func
->handler
= psi_to_bool
;
515 set
->func
->handler
= psi_to_int
;
518 set
->func
->handler
= psi_to_double
;
520 case PSI_T_TO_STRING
:
521 set
->func
->handler
= psi_to_string
;
524 set
->func
->handler
= psi_to_array
;
526 case PSI_T_TO_OBJECT
:
527 set
->func
->handler
= psi_to_object
;
530 set
->func
->handler
= psi_to_void
;
537 static inline void decl_var_arg_v(decl_args
*args
, va_list argp
) {
541 memset(args
, 0, sizeof(*args
));
543 while ((argc
= va_arg(argp
, int))) {
544 argv
= va_arg(argp
, decl_arg
**);
546 add_decl_arg(args
, *argv
++);
550 static inline int validate_set_value_ex(PSI_Data
*data
, set_value
*set
, decl_arg
*ref
, decl_args
*ref_list
) {
553 decl_var
*set_var
= set
->vars
->vars
[0];
555 if (!validate_set_value_handler(set
)) {
556 data
->error(PSI_WARNING
, "Invalid cast '%s'", set
->func
->name
);
560 for (i
= 0; i
< set
->vars
->count
; ++i
) {
561 decl_var
*svar
= set
->vars
->vars
[i
];
562 if (!svar
->arg
&& !locate_decl_var_arg(svar
, ref_list
, NULL
)) {
563 data
->error(PSI_WARNING
, "Unknown variable '%s'", svar
->name
);
571 ref_type
= real_decl_type(ref
->type
);
574 int is_to_array
= (set
->func
->type
== PSI_T_TO_ARRAY
);
575 int is_pointer_to_struct
= (ref_type
->type
== PSI_T_STRUCT
&& ref
->var
->pointer_level
);
577 if (!is_to_array
&& !is_pointer_to_struct
) {
578 data
->error(E_WARNING
, "Inner `set` statement casts only work with "
579 "to_array() casts on structs or pointers: %s(%s...", set
->func
->name
, set
->vars
->vars
[0]->name
);
584 if (!validate_num_exp(data
, ref_list
, ref
, set
->num
)) {
589 if (ref_type
->type
== PSI_T_STRUCT
) {
590 /* to_array(struct, to_...) */
591 for (i
= 0; i
< set
->count
; ++i
) {
592 decl_var
*sub_var
= set
->inner
[i
]->vars
->vars
[0];
593 decl_arg
*sub_ref
= locate_struct_member(ref_type
->strct
, sub_var
);
595 set
->inner
[i
]->outer
.set
= set
;
597 if (!validate_set_value_ex(data
, set
->inner
[i
], sub_ref
, ref_type
->strct
->args
)) {
602 } else if (set
->count
== 1) {
603 /* to_array(ptr, to_string(*ptr)) */
604 decl_var
*sub_var
= set
->inner
[0]->vars
->vars
[0];
605 decl_arg
*sub_ref
= locate_decl_var_arg(sub_var
, ref_list
, ref
);
607 set
->inner
[0]->outer
.set
= set
;
609 if (strcmp(sub_var
->name
, set_var
->name
)) {
610 data
->error(E_WARNING
, "Inner `set` statement casts on pointers must reference the same variable");
613 if (!validate_set_value_ex(data
, set
->inner
[0], sub_ref
, ref_list
)) {
617 } else if (set
->count
> 1) {
618 data
->error(E_WARNING
, "Inner `set` statement casts on pointers may only occur once");
624 static inline int validate_set_value(PSI_Data
*data
, set_value
*set
, ...) {
626 decl_args args
= {0};
630 decl_var_arg_v(&args
, argp
);
633 check
= validate_set_value_ex(data
, set
, NULL
, &args
);
639 static inline decl
*locate_impl_decl(decls
*decls
, return_stmt
*ret
) {
643 for (i
= 0; i
< decls
->count
; ++i
) {
644 if (!strcmp(decls
->list
[i
]->func
->var
->name
, ret
->set
->vars
->vars
[0]->name
)) {
645 ret
->decl
= decls
->list
[i
]->func
;
646 return decls
->list
[i
];
653 static inline int validate_impl_ret_stmt(PSI_Data
*data
, impl
*impl
) {
656 /* we must have exactly one ret stmt delcaring the native func to call */
657 /* and which type cast to apply */
658 if (impl
->stmts
->ret
.count
!= 1) {
659 if (impl
->stmts
->ret
.count
> 1) {
660 data
->error(PSI_WARNING
, "Too many `return` statements for implmentation %s;"
661 " found %zu, exactly one is needed",
662 impl
->func
->name
, impl
->stmts
->ret
.count
);
664 data
->error(PSI_WARNING
, "Missing `return` statement for implementation %s",
670 ret
= impl
->stmts
->ret
.list
[0];
672 if (!(impl
->decl
= locate_impl_decl(data
->decls
, ret
))) {
673 data
->error(PSI_WARNING
, "Missing declaration for implementation %s",
678 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)) {
682 impl
->decl
->impl
= impl
;
687 static inline int validate_impl_let_stmts(PSI_Data
*data
, impl
*impl
) {
689 /* we can have multiple let stmts */
691 /* check that we have a decl arg for every let stmt */
692 for (i
= 0; i
< impl
->stmts
->let
.count
; ++i
) {
693 let_stmt
*let
= impl
->stmts
->let
.list
[i
];
697 if (let
->val
&& let
->val
->kind
== PSI_LET_TMP
) {
698 let_var
= let
->val
->data
.var
;
703 if (!locate_decl_var_arg(let_var
, impl
->decl
->args
, impl
->decl
->func
)) {
704 data
->error(PSI_WARNING
, "Unknown variable '%s' in `let` statement"
705 " of implementation '%s'", let_var
->name
, impl
->func
->name
);
709 switch (let
->val
->kind
) {
713 /* e.g. let bar = &strval($bar); // decl_arg(char **bar) */
714 /* e.g. let foo = *bar; */
715 let
->var
->pointer_level
= let
->val
->data
.var
->pointer_level
;
716 let
->var
->arg
= init_decl_arg(
718 real_decl_type(let
->val
->data
.var
->arg
->type
)->type
,
719 real_decl_type(let
->val
->data
.var
->arg
->type
)->name
),
722 let
->var
->pointer_level
,
723 let
->var
->array_size
));
726 if (!validate_num_exp(data
, impl
->decl
->args
, impl
->decl
->func
, let
->val
->data
.num
)) {
731 if (!validate_num_exp(data
, impl
->decl
->args
, impl
->decl
->func
, let
->val
->data
.alloc
->nmemb
)) {
734 if (!validate_num_exp(data
, impl
->decl
->args
, impl
->decl
->func
, let
->val
->data
.alloc
->size
)) {
739 if (impl
->func
->args
) {
740 for (j
= 0; j
< impl
->func
->args
->count
; ++j
) {
741 impl_arg
*iarg
= impl
->func
->args
->args
[j
];
743 if (!strcmp(let
->val
->data
.func
->var
->name
, iarg
->var
->name
)) {
744 let
->val
->data
.func
->arg
= iarg
;
751 data
->error(PSI_WARNING
, "Unknown value '$%s' of `let` statement"
752 " for variable '%s' of implementation '%s'",
753 let
->val
->data
.func
->var
->name
, let
->var
->name
, impl
->func
->name
);
760 /* check that we have a let stmt for every decl arg */
761 if (impl
->decl
->args
) for (i
= 0; i
< impl
->decl
->args
->count
; ++i
) {
762 decl_arg
*darg
= impl
->decl
->args
->args
[i
];
765 for (j
= 0; j
< impl
->stmts
->let
.count
; ++j
) {
766 let_stmt
*let
= impl
->stmts
->let
.list
[j
];
768 if (!strcmp(let
->var
->name
, darg
->var
->name
)) {
775 data
->error(PSI_WARNING
, "Missing `let` statement for arg '%s %.*s%s'"
776 " of declaration '%s' for implementation '%s'",
777 darg
->type
->name
, (int) darg
->var
->pointer_level
, "*****",
778 darg
->var
->name
, impl
->decl
->func
->var
->name
, impl
->func
->name
);
785 static inline int validate_impl_set_stmts(PSI_Data
*data
, impl
*impl
) {
787 /* we can have any count of set stmts; processing out vars */
788 /* check that set stmts reference known variables */
789 for (i
= 0; i
< impl
->stmts
->set
.count
; ++i
) {
790 set_stmt
*set
= impl
->stmts
->set
.list
[i
];
793 if (impl
->func
->args
) for (j
= 0; j
< impl
->func
->args
->count
; ++j
) {
794 impl_arg
*iarg
= impl
->func
->args
->args
[j
];
796 if (!strcmp(set
->var
->name
, iarg
->var
->name
)) {
803 data
->error(PSI_WARNING
, "Unknown variable '$%s' of `set` statement"
804 " of implementation '%s'",
805 set
->var
->name
, impl
->func
->name
);
809 for (j
= 0; j
< set
->val
->vars
->count
; ++j
) {
810 decl_var
*set_var
= set
->val
->vars
->vars
[j
];
813 if (impl
->decl
->args
) {
814 for (k
= 0; k
< impl
->decl
->args
->count
; ++k
) {
815 decl_arg
*set_arg
= impl
->decl
->args
->args
[k
];
817 if (!strcmp(set_var
->name
, set_arg
->var
->name
)) {
819 set_var
->arg
= set_arg
;
820 if (!validate_set_value(data
, set
->val
, 1, &set_arg
, 1, &impl
->decl
->func
, impl
->decl
->args
->count
, impl
->decl
->args
->args
, 0)) {
828 for (k
= 0; k
< impl
->stmts
->let
.count
; ++k
) {
829 let_stmt
*let
= impl
->stmts
->let
.list
[k
];
831 /* check temp vars */
832 if (let
->val
&& let
->val
->kind
== PSI_LET_TMP
) {
833 if (!strcmp(set_var
->name
, let
->var
->name
)) {
835 set_var
->arg
= let
->var
->arg
;
836 if (!validate_set_value(data
, set
->val
, 1, &set_var
->arg
, 1, &impl
->decl
->func
, impl
->decl
->args
->count
, impl
->decl
->args
->args
, 0)) {
846 data
->error(PSI_WARNING
, "Unknown value '%s' of `set` statement"
847 " for variable '$%s' of implementation '%s'",
848 set_var
->name
, set
->arg
->var
->name
, impl
->func
->name
);
855 static inline decl
*locate_free_decl(decls
*decls
, free_call
*f
) {
859 for (i
= 0; i
< decls
->count
; ++i
) {
860 if (!strcmp(decls
->list
[i
]->func
->var
->name
, f
->func
)) {
861 f
->decl
= decls
->list
[i
];
862 return decls
->list
[i
];
869 static inline int validate_impl_free_stmts(PSI_Data
*data
, impl
*impl
) {
871 /* we can have any count of free stmts; freeing any out vars */
872 for (i
= 0; i
< impl
->stmts
->fre
.count
; ++i
) {
873 free_stmt
*fre
= impl
->stmts
->fre
.list
[i
];
875 for (j
= 0; j
< fre
->calls
->count
; ++j
) {
876 free_call
*free_call
= fre
->calls
->list
[j
];
878 /* first find the decl of the free func */
879 if (!locate_free_decl(data
->decls
, free_call
)) {
880 data
->error(PSI_WARNING
, "Unknown function '%s' in `free` statement"
881 " of implementation '%s'", free_call
->func
, impl
->func
->name
);
884 if (!impl
->decl
->args
) {
885 data
->error(PSI_WARNING
, "Declaration '%s' of implementation '%s'"
886 " does not have any arguments to free",
887 impl
->decl
->func
->var
->name
, impl
->func
->name
);
890 /* now check for known vars */
891 for (l
= 0; l
< free_call
->vars
->count
; ++l
) {
893 decl_var
*free_var
= free_call
->vars
->vars
[l
];
895 for (k
= 0; k
< impl
->decl
->args
->count
; ++k
) {
896 decl_arg
*free_arg
= impl
->decl
->args
->args
[k
];
898 if (!strcmp(free_var
->name
, free_arg
->var
->name
)) {
900 free_var
->arg
= free_arg
;
906 data
->error(PSI_WARNING
, "Unknown variable '%s' of `free` statement"
907 " of implementation '%s'",
908 free_var
->name
, impl
->func
->name
);
916 static inline int validate_impl_stmts(PSI_Data
*data
, impl
*impl
) {
918 data
->error(PSI_WARNING
, "Missing body for implementation %s!",
923 if (!validate_impl_ret_stmt(data
, impl
)) {
927 if (!validate_impl_let_stmts(data
, impl
)) {
930 if (!validate_impl_set_stmts(data
, impl
)) {
933 if (!validate_impl_free_stmts(data
, impl
)) {
940 PSI_Context
*PSI_ContextInit(PSI_Context
*C
, PSI_ContextOps
*ops
, PSI_ContextErrorFunc error
)
944 struct psi_predef_type
*predef_type
;
945 struct psi_predef_const
*predef_const
;
946 struct psi_predef_struct
*predef_struct
;
947 struct psi_predef_decl
*predef_decl
;
950 C
= malloc(sizeof(*C
));
952 memset(C
, 0, sizeof(*C
));
961 ZEND_ASSERT(ops
->call
!= NULL
);
962 ZEND_ASSERT(ops
->compile
!= NULL
);
964 /* build up predefs in a temporary PSI_Data for validation */
965 memset(&T
, 0, sizeof(T
));
968 for (predef_type
= &psi_predef_types
[0]; predef_type
->type_tag
; ++predef_type
) {
969 decl_type
*type
= init_decl_type(predef_type
->type_tag
, predef_type
->type_name
);
970 decl_typedef
*def
= init_decl_typedef(predef_type
->alias
, type
);
972 T
.defs
= add_decl_typedef(T
.defs
, def
);
974 for (predef_const
= &psi_predef_consts
[0]; predef_const
->type_tag
; ++predef_const
) {
975 impl_def_val
*val
= init_impl_def_val(predef_const
->val_type_tag
, predef_const
->val_text
);
976 const_type
*type
= init_const_type(predef_const
->type_tag
, predef_const
->type_name
);
977 constant
*constant
= init_constant(type
, predef_const
->var_name
, val
);
979 T
.consts
= add_constant(T
.consts
, constant
);
981 for (predef_struct
= &psi_predef_structs
[0]; predef_struct
->type_tag
; ++predef_struct
) {
982 struct psi_predef_struct
*member
;
983 decl_args
*dargs
= init_decl_args(NULL
);
984 decl_struct
*dstruct
= init_decl_struct(predef_struct
->var_name
, dargs
);
986 dstruct
->size
= predef_struct
->size
;
987 for (member
= &predef_struct
[1]; member
->type_tag
; ++member
) {
992 type
= init_decl_type(member
->type_tag
, member
->type_name
);
993 dvar
= init_decl_var(member
->var_name
, member
->pointer_level
, member
->array_size
);
994 darg
= init_decl_arg(type
, dvar
);
995 darg
->layout
= init_decl_struct_layout(member
->offset
, member
->size
);
996 dargs
= add_decl_arg(dargs
, darg
);
999 T
.structs
= add_decl_struct(T
.structs
, dstruct
);
1000 predef_struct
= member
;
1002 for (predef_decl
= &psi_predef_decls
[0]; predef_decl
->type_tag
; ++predef_decl
) {
1003 struct psi_predef_decl
*farg
;
1004 decl_type
*ftype
= init_decl_type(predef_decl
->type_tag
, predef_decl
->type_name
);
1005 decl_var
*fname
= init_decl_var(predef_decl
->var_name
, predef_decl
->pointer_level
, predef_decl
->array_size
);
1006 decl_arg
*func
= init_decl_arg(ftype
, fname
);
1007 decl_args
*args
= init_decl_args(NULL
);
1008 decl
*decl
= init_decl(init_decl_abi("default"), func
, args
);
1011 for (farg
= &predef_decl
[1]; farg
->type_tag
; ++farg
) {
1012 decl_type
*arg_type
= init_decl_type(farg
->type_tag
, farg
->type_name
);
1013 decl_var
*arg_var
= init_decl_var(farg
->var_name
, farg
->pointer_level
, farg
->array_size
);
1014 decl_arg
*darg
= init_decl_arg(arg_type
, arg_var
);
1015 args
= add_decl_arg(args
, darg
);
1018 T
.decls
= add_decl(T
.decls
, decl
);
1022 for (i
= 0; i
< T
.defs
->count
; ++i
) {
1023 decl_typedef
*def
= T
.defs
->list
[i
];
1025 if (validate_decl_typedef(&T
, def
)) {
1026 C
->defs
= add_decl_typedef(C
->defs
, def
);
1030 for (i
= 0; i
< T
.consts
->count
; ++i
) {
1031 constant
*constant
= T
.consts
->list
[i
];
1033 if (validate_constant(&T
, constant
)) {
1034 C
->consts
= add_constant(C
->consts
, constant
);
1038 for (i
= 0; i
< T
.structs
->count
; ++i
) {
1039 decl_struct
*dstruct
= T
.structs
->list
[i
];
1041 if (validate_decl_struct(&T
, dstruct
)) {
1042 C
->structs
= add_decl_struct(C
->structs
, dstruct
);
1046 for (i
= 0; i
< T
.decls
->count
; ++i
) {
1047 decl
*decl
= T
.decls
->list
[i
];
1049 if (validate_decl(&T
, NULL
, decl
)) {
1050 C
->decls
= add_decl(C
->decls
, decl
);
1055 C
->data
= malloc(sizeof(*C
->data
));
1056 PSI_DataExchange(C
->data
, &T
);
1061 int PSI_ContextValidate(PSI_Context
*C
, PSI_Parser
*P
)
1064 void *dlopened
= NULL
;
1065 size_t count
= C
->count
++;
1067 C
->data
= realloc(C
->data
, C
->count
* sizeof(*C
->data
));
1068 D
= PSI_DataExchange(&C
->data
[count
], PSI_DATA(P
));
1073 for (i
= 0; i
< D
->defs
->count
; ++i
) {
1074 if (validate_decl_typedef(PSI_DATA(C
), D
->defs
->list
[i
])) {
1075 C
->defs
= add_decl_typedef(C
->defs
, D
->defs
->list
[i
]);
1082 for (i
= 0; i
< D
->structs
->count
; ++i
) {
1083 if (validate_decl_struct(PSI_DATA(C
), D
->structs
->list
[i
])) {
1084 C
->structs
= add_decl_struct(C
->structs
, D
->structs
->list
[i
]);
1091 for (i
= 0; i
< D
->consts
->count
; ++i
) {
1092 if (validate_constant(PSI_DATA(C
), D
->consts
->list
[i
])) {
1093 C
->consts
= add_constant(C
->consts
, D
->consts
->list
[i
]);
1098 if (!validate_lib(D
, &dlopened
)) {
1102 add_decl_lib(&C
->psi
.libs
, dlopened
);
1107 for (i
= 0; i
< D
->decls
->count
; ++i
) {
1108 if (validate_decl(PSI_DATA(C
), dlopened
, D
->decls
->list
[i
])) {
1109 C
->decls
= add_decl(C
->decls
, D
->decls
->list
[i
]);
1116 for (i
= 0; i
< D
->impls
->count
; ++i
) {
1117 if (validate_impl_stmts(PSI_DATA(C
), D
->impls
->list
[i
])) {
1118 C
->impls
= add_impl(C
->impls
, D
->impls
->list
[i
]);
1126 static int psi_select_dirent(const struct dirent
*entry
)
1128 #ifndef FNM_CASEFOLD
1129 #define FNM_CASEFOLD 0
1131 return 0 == fnmatch("*.psi", entry
->d_name
, FNM_CASEFOLD
);
1134 void PSI_ContextBuild(PSI_Context
*C
, const char *paths
)
1136 int i
, n
, flags
= psi_check_env("PSI_DEBUG") ? PSI_PARSER_DEBUG
: 0;
1137 char *sep
= NULL
, *cpy
= strdup(paths
), *ptr
= cpy
;
1138 struct dirent
**entries
= NULL
;
1142 sep
= strchr(ptr
, ':');
1148 n
= php_scandir(ptr
, &entries
, psi_select_dirent
, alphasort
);
1151 for (i
= 0; i
< n
; ++i
) {
1152 char psi
[MAXPATHLEN
];
1155 if (MAXPATHLEN
<= slprintf(psi
, MAXPATHLEN
, "%s/%s", ptr
, entries
[i
]->d_name
)) {
1156 C
->error(PSI_WARNING
, "Path to PSI file too long: %s/%s",
1157 ptr
, entries
[i
]->d_name
);
1159 if (!PSI_ParserInit(&P
, psi
, C
->error
, flags
)) {
1160 C
->error(PSI_WARNING
, "Failed to init PSI parser (%s): %s",
1161 psi
, strerror(errno
));
1165 while (0 < PSI_ParserScan(&P
)) {
1166 PSI_ParserParse(&P
, PSI_TokenAlloc(&P
));
1167 if (P
.num
== PSI_T_EOF
) {
1172 PSI_ParserParse(&P
, NULL
);
1173 PSI_ContextValidate(C
, &P
);
1179 for (i
= 0; i
< n
; ++i
) {
1189 if (PSI_ContextCompile(C
) && SUCCESS
!= zend_register_functions(NULL
, C
->closures
, NULL
, MODULE_PERSISTENT
)) {
1190 C
->error(PSI_WARNING
, "Failed to register functions!");
1197 zend_function_entry
*PSI_ContextCompile(PSI_Context
*C
)
1204 zc
.flags
= CONST_PERSISTENT
|CONST_CS
;
1205 zc
.module_number
= EG(current_module
)->module_number
;
1207 for (i
= 0; i
< C
->consts
->count
; ++i
) {
1208 constant
*c
= C
->consts
->list
[i
];
1210 zc
.name
= zend_string_init(c
->name
+ (c
->name
[0] == '\\'), strlen(c
->name
) - (c
->name
[0] == '\\'), 1);
1211 ZVAL_NEW_STR(&zc
.value
, zend_string_init(c
->val
->text
, strlen(c
->val
->text
), 1));
1213 switch (c
->type
->type
) {
1215 convert_to_boolean(&zc
.value
);
1218 convert_to_long(&zc
.value
);
1221 convert_to_double(&zc
.value
);
1224 zend_register_constant(&zc
);
1228 return C
->closures
= C
->ops
->compile(C
);
1232 void PSI_ContextCall(PSI_Context
*C
, decl_callinfo
*decl_call
, impl_vararg
*va
)
1234 C
->ops
->call(C
, decl_call
, va
);
1237 static inline void dump_decl_type(int fd
, decl_type
*t
) {
1247 dprintf(fd
, "%s%s", pre
, t
->name
);
1249 static inline void dump_decl_var(int fd
, decl_var
*v
) {
1250 dprintf(fd
, "%.*s%s", v
->pointer_level
-!!v
->array_size
, "**********", v
->name
);
1251 if (v
->array_size
) {
1252 dprintf(fd
, "[%u]", v
->array_size
);
1255 static inline void dump_decl_arg(int fd
, decl_arg
*a
) {
1256 dump_decl_type(fd
, a
->type
);
1258 dump_decl_var(fd
, a
->var
);
1260 static inline void dump_level(int fd
, unsigned level
) {
1261 dprintf(fd
, "%.*s", level
, "\t\t\t\t\t\t\t\t\t");
1263 static inline void dump_num_exp(int fd
, num_exp
*exp
) {
1267 dprintf(fd
, "%s", exp
->u
.numb
);
1270 dprintf(fd
, "%s", exp
->u
.cnst
->name
);
1273 dump_decl_var(fd
, exp
->u
.dvar
);
1275 EMPTY_SWITCH_DEFAULT_CASE();
1280 switch (exp
->operator) {
1281 case PSI_T_PLUS
: op
= '+'; break;
1282 case PSI_T_MINUS
: op
= '-'; break;
1283 case PSI_T_ASTERISK
:op
= '*'; break;
1284 case PSI_T_SLASH
: op
= '/'; break;
1285 EMPTY_SWITCH_DEFAULT_CASE();
1287 dprintf(fd
, " %c ", op
);
1292 static inline void dump_impl_set_value(int fd
, set_value
*set
, unsigned level
) {
1296 /* only if not directly after `set ...` */
1297 dump_level(fd
, level
);
1299 dprintf(fd
, "%s(", set
->func
->name
);
1301 for (i
= 0; i
< set
->vars
->count
; ++i
) {
1302 decl_var
*svar
= set
->vars
->vars
[i
];
1306 dump_decl_var(fd
, svar
);
1310 dump_num_exp(fd
, set
->num
);
1314 for (i
= 0; i
< set
->count
; ++i
) {
1315 dump_impl_set_value(fd
, set
->inner
[i
], level
+1);
1317 /* only if inner stmts, i.e. with new lines, were dumped */
1318 dump_level(fd
, level
);
1321 dprintf(fd
, "),\n");
1323 dprintf(fd
, ");\n");
1326 void PSI_ContextDump(PSI_Context
*C
, int fd
)
1331 if (C
->ops
== PSI_Libjit()) {
1332 dprintf(fd
, "// psi.engine=jit\n");
1336 if (C
->ops
== PSI_Libffi()) {
1337 dprintf(fd
, "// psi.engine=ffi\n");
1343 for (i
= 0; i
< C
->defs
->count
; ++i
) {
1344 decl_typedef
*tdef
= C
->defs
->list
[i
];
1346 dprintf(fd
, "typedef ");
1347 dump_decl_type(fd
, tdef
->type
);
1348 dprintf(fd
, " %s;\n", tdef
->alias
);
1354 for (i
= 0; i
< C
->structs
->count
; ++i
) {
1355 decl_struct
*strct
= C
->structs
->list
[i
];
1357 dprintf(fd
, "struct %s::(%zu) {\n", strct
->name
, strct
->size
);
1358 if (strct
->args
) for (j
= 0; j
< strct
->args
->count
; ++j
) {
1359 decl_arg
*sarg
= strct
->args
->args
[j
];
1362 dump_decl_arg(fd
, sarg
);
1363 dprintf(fd
, "::(%zu, %zu);\n", sarg
->layout
->pos
, sarg
->layout
->len
);
1370 for (i
= 0; i
< C
->consts
->count
; ++i
) {
1371 constant
*cnst
= C
->consts
->list
[i
];
1373 dprintf(fd
, "const %s %s = ", cnst
->type
->name
, cnst
->name
);
1374 if (cnst
->val
->type
== PSI_T_QUOTED_STRING
) {
1375 dprintf(fd
, "\"%s\";\n", cnst
->val
->text
);
1377 dprintf(fd
, "%s;\n", cnst
->val
->text
);
1383 for (i
= 0; i
< C
->decls
->count
; ++i
) {
1384 decl
*decl
= C
->decls
->list
[i
];
1386 dprintf(fd
, "%s ", decl
->abi
->convention
);
1387 dump_decl_arg(fd
, decl
->func
);
1390 for (j
= 0; j
< decl
->args
->count
; ++j
) {
1394 dump_decl_arg(fd
, decl
->args
->args
[j
]);
1396 if (decl
->args
->varargs
) {
1397 dprintf(fd
, ", ...");
1400 dprintf(fd
, ");\n");
1405 for (i
= 0; i
< C
->impls
->count
; ++i
) {
1406 impl
*impl
= C
->impls
->list
[i
];
1408 dprintf(fd
, "function %s(", impl
->func
->name
);
1409 if (impl
->func
->args
) {
1410 for (j
= 0; j
< impl
->func
->args
->count
; ++j
) {
1411 impl_arg
*iarg
= impl
->func
->args
->args
[j
];
1413 dprintf(fd
, "%s%s %s$%s",
1416 iarg
->var
->reference
? "&" : "",
1419 dprintf(fd
, " = %s", iarg
->def
->text
);
1422 if (impl
->func
->args
->vararg
.name
) {
1423 impl_arg
*vararg
= impl
->func
->args
->vararg
.name
;
1425 dprintf(fd
, ", %s %s...$%s",
1427 vararg
->var
->reference
? "&" : "",
1431 dprintf(fd
, ") : %s%s {\n",
1432 impl
->func
->return_reference
? "&":"",
1433 impl
->func
->return_type
->name
);
1435 for (j
= 0; j
< impl
->stmts
->let
.count
; ++j
) {
1436 let_stmt
*let
= impl
->stmts
->let
.list
[j
];
1438 dprintf(fd
, "\tlet %s", let
->var
->name
);
1440 dprintf(fd
, " = %s", let
->val
->flags
.one
.is_reference
? "&" : "");
1441 switch (let
->val
->kind
) {
1443 dprintf(fd
, "NULL");
1446 dump_decl_var(fd
, let
->val
->data
.var
);
1448 case PSI_LET_CALLOC
:
1449 dprintf(fd
, "calloc(");
1450 dump_num_exp(fd
, let
->val
->data
.alloc
->nmemb
);
1452 dump_num_exp(fd
, let
->val
->data
.alloc
->size
);
1456 dprintf(fd
, "%s($%s)", let
->val
->data
.func
->name
,
1457 let
->val
->data
.func
->var
->name
);
1460 EMPTY_SWITCH_DEFAULT_CASE();
1465 for (j
= 0; j
< impl
->stmts
->ret
.count
; ++j
) {
1466 return_stmt
*ret
= impl
->stmts
->ret
.list
[j
];
1468 dprintf(fd
, "\treturn ");
1469 dump_impl_set_value(fd
, ret
->set
, 1);
1471 for (j
= 0; j
< impl
->stmts
->set
.count
; ++j
) {
1472 set_stmt
*set
= impl
->stmts
->set
.list
[j
];
1474 dprintf(fd
, "\tset $%s = ", set
->var
->name
);
1475 dump_impl_set_value(fd
, set
->val
, 1);
1477 for (j
= 0; j
< impl
->stmts
->fre
.count
; ++j
) {
1478 free_stmt
*fre
= impl
->stmts
->fre
.list
[j
];
1480 dprintf(fd
, "\tfree ");
1481 for (k
= 0; k
< fre
->calls
->count
; ++k
) {
1482 free_call
*call
= fre
->calls
->list
[k
];
1487 dprintf(fd
, "%s(", call
->func
);
1488 for (l
= 0; l
< call
->vars
->count
; ++l
) {
1489 decl_var
*fvar
= call
->vars
->vars
[l
];
1491 dump_decl_var(fd
, fvar
);
1493 dprintf(fd
, ");\n");
1503 void PSI_ContextDtor(PSI_Context
*C
)
1506 zend_function_entry
*zfe
;
1512 free_decl_libs(&C
->psi
.libs
);
1515 for (i
= 0; i
< C
->count
; ++i
) {
1516 PSI_DataDtor(&C
->data
[i
]);
1522 for (zfe
= C
->closures
; zfe
->fname
; ++zfe
) {
1523 free((void *) zfe
->arg_info
);
1529 if (C
->consts
->list
) {
1530 free(C
->consts
->list
);
1535 if (C
->defs
->list
) {
1536 free(C
->defs
->list
);
1541 if (C
->structs
->list
) {
1542 free(C
->structs
->list
);
1547 if (C
->decls
->list
) {
1548 free(C
->decls
->list
);
1553 if (C
->impls
->list
) {
1554 free(C
->impls
->list
);
1559 memset(C
, 0, sizeof(*C
));
1562 void PSI_ContextFree(PSI_Context
**C
)
1565 PSI_ContextDtor(*C
);