git.m6w6.name Git - m6w6/ext-psi/blob - src/context.c

   1 #ifdef HAVE_CONFIG_H
   2 # include "config.h"
   3 #endif
   4
   5 #include "php_psi_stdinc.h"
   6
   7 #include "php.h"
   8
   9 #ifdef HAVE_DIRENT_H
  10 # include <dirent.h>
  11 # define NAMLEN(dirent) strlen ((dirent)->d_name)
  12 #else
  13 # define dirent direct
  14 # define NAMLEN(dirent) ((dirent)->d_namlen)
  15 # ifdef HAVE_SYS_NDIR_H
  16 #  include <sys/ndir.h>
  17 # endif
  18 # ifdef HAVE_SYS_DIR_H
  19 #  include <sys/dir.h>
  20 # endif
  21 # ifdef HAVE_NDIR_H
  22 #  include <ndir.h>
  23 # endif
  24 #endif
  25
  26 #include <fnmatch.h>
  27
  28 #include "php_scandir.h"
  29 #include "php_psi.h"
  30 #include "calc.h"
  31 #include "libjit.h"
  32 #include "libffi.h"
  33
  34 #include "token.h"
  35 #include "parser.h"
  36
  37 #include "php_psi_types.h"
  38 #include "php_psi_consts.h"
  39 #include "php_psi_decls.h"
  40 #include "php_psi_va_decls.h"
  41 #include "php_psi_structs.h"
  42 #include "php_psi_unions.h"
  43
  44 struct psi_context *psi_context_init(struct psi_context *C, struct psi_context_ops *ops, psi_context_error_func error, unsigned flags)
  45 {
  46         struct psi_data T;
  47         struct psi_predef_type *predef_type;
  48         struct psi_predef_const *predef_const;
  49         struct psi_predef_struct *predef_struct;
  50         struct psi_predef_union *predef_union;
  51         struct psi_predef_decl *predef_decl;
  52
  53         if (!C) {
  54                 C = malloc(sizeof(*C));
  55         }
  56         memset(C, 0, sizeof(*C));
  57
  58         C->error = error;
  59         C->flags = flags;
  60         C->ops = ops;
  61
  62         if (ops->init) {
  63                 ops->init(C);
  64         }
  65
  66         ZEND_ASSERT(ops->call != NULL);
  67         ZEND_ASSERT(ops->compile != NULL);
  68
  69         /* build up predefs in a temporary PSI_Data for validation */
  70         memset(&T, 0, sizeof(T));
  71         T.error = error;
  72
  73         for (predef_type = &psi_predef_types[0]; predef_type->type_tag; ++predef_type) {
  74                 decl_type *type = init_decl_type(predef_type->type_tag, predef_type->type_name);
  75                 decl_var *var = init_decl_var(predef_type->alias, 0, 0); /* FIXME: indirection */
  76                 decl_arg *def = init_decl_arg(type, var);
  77
  78                 T.defs = add_decl_typedef(T.defs, def);
  79         }
  80         for (predef_const = &psi_predef_consts[0]; predef_const->type_tag; ++predef_const) {
  81                 impl_def_val *val = init_impl_def_val(predef_const->val_type_tag, predef_const->val_text);
  82                 const_type *type = init_const_type(predef_const->type_tag, predef_const->type_name);
  83                 constant *constant = init_constant(type, predef_const->var_name, val);
  84
  85                 T.consts = add_constant(T.consts, constant);
  86         }
  87         for (predef_struct = &psi_predef_structs[0]; predef_struct->type_tag; ++predef_struct) {
  88                 struct psi_predef_struct *member;
  89                 decl_args *dargs = init_decl_args(NULL);
  90                 decl_struct *dstruct = init_decl_struct(predef_struct->var_name, dargs);
  91
  92                 dstruct->size = predef_struct->size;
  93                 dstruct->align = predef_struct->offset;
  94                 for (member = &predef_struct[1]; member->type_tag; ++member) {
  95                         decl_type *type;
  96                         decl_var *dvar;
  97                         decl_arg *darg;
  98
  99                         type = init_decl_type(member->type_tag, member->type_name);
 100                         dvar = init_decl_var(member->var_name, member->pointer_level, member->array_size);
 101                         darg = init_decl_arg(type, dvar);
 102                         darg->layout = init_decl_struct_layout(member->offset, member->size);
 103                         dargs = add_decl_arg(dargs, darg);
 104                 }
 105
 106                 T.structs = add_decl_struct(T.structs, dstruct);
 107                 predef_struct = member;
 108         }
 109         for (predef_union = &psi_predef_unions[0]; predef_union->type_tag; ++predef_union) {
 110                 struct psi_predef_union *member;
 111                 decl_args *dargs = init_decl_args(NULL);
 112                 decl_union *dunion = init_decl_union(predef_union->var_name, dargs);
 113
 114                 dunion->size = predef_union->size;
 115                 dunion->align = predef_union->offset;
 116                 for (member = &predef_union[1]; member->type_tag; ++member) {
 117                         decl_type *type;
 118                         decl_var *dvar;
 119                         decl_arg *darg;
 120
 121                         type = init_decl_type(member->type_tag, member->type_name);
 122                         dvar = init_decl_var(member->var_name, member->pointer_level, member->array_size);
 123                         darg = init_decl_arg(type, dvar);
 124                         darg->layout = init_decl_struct_layout(member->offset, member->size);
 125                         dargs = add_decl_arg(dargs, darg);
 126                 }
 127
 128                 T.unions = add_decl_union(T.unions, dunion);
 129                 predef_union = member;
 130         }
 131         for (predef_decl = &psi_predef_decls[0]; predef_decl->type_tag; ++predef_decl) {
 132                 struct psi_predef_decl *farg;
 133                 decl_type *ftype = init_decl_type(predef_decl->type_tag, predef_decl->type_name);
 134                 decl_var *fname = init_decl_var(predef_decl->var_name, predef_decl->pointer_level, predef_decl->array_size);
 135                 decl_arg *func = init_decl_arg(ftype, fname);
 136                 decl_args *args = init_decl_args(NULL);
 137                 decl *decl = init_decl(init_decl_abi("default"), func, args);
 138
 139                 for (farg = &predef_decl[1]; farg->type_tag; ++farg) {
 140                         decl_type *arg_type = init_decl_type(farg->type_tag, farg->type_name);
 141                         decl_var *arg_var = init_decl_var(farg->var_name, farg->pointer_level, farg->array_size);
 142                         decl_arg *darg = init_decl_arg(arg_type, arg_var);
 143                         args = add_decl_arg(args, darg);
 144                 }
 145
 146                 T.decls = add_decl(T.decls, decl);
 147                 predef_decl = farg;
 148         }
 149
 150         for (predef_decl = &psi_predef_vararg_decls[0]; predef_decl->type_tag; ++predef_decl) {
 151                 struct psi_predef_decl *farg;
 152                 decl_type *ftype = init_decl_type(predef_decl->type_tag, predef_decl->type_name);
 153                 decl_var *fname = init_decl_var(predef_decl->var_name, predef_decl->pointer_level, predef_decl->array_size);
 154                 decl_arg *func = init_decl_arg(ftype, fname);
 155                 decl_args *args = init_decl_args(NULL);
 156                 decl *decl = init_decl(init_decl_abi("default"), func, args);
 157
 158                 for (farg = &predef_decl[1]; farg->type_tag; ++farg) {
 159                         decl_type *arg_type = init_decl_type(farg->type_tag, farg->type_name);
 160                         decl_var *arg_var = init_decl_var(farg->var_name, farg->pointer_level, farg->array_size);
 161                         decl_arg *darg = init_decl_arg(arg_type, arg_var);
 162                         args = add_decl_arg(args, darg);
 163                 }
 164                 args->varargs = 1;
 165
 166                 T.decls = add_decl(T.decls, decl);
 167                 predef_decl = farg;
 168         }
 169
 170         psi_context_validate_data(PSI_DATA(C), &T);
 171
 172         C->count = 1;
 173         C->data = malloc(sizeof(*C->data));
 174         psi_data_exchange(C->data, &T);
 175
 176         return C;
 177 }
 178
 179 static int psi_select_dirent(const struct dirent *entry)
 180 {
 181 #ifndef FNM_CASEFOLD
 182 #define FNM_CASEFOLD 0
 183 #endif
 184         return 0 == fnmatch("*.psi", entry->d_name, FNM_CASEFOLD);
 185 }
 186
 187 void psi_context_build(struct psi_context *C, const char *paths)
 188 {
 189         int i, n;
 190         char *sep = NULL, *cpy = strdup(paths), *ptr = cpy;
 191         struct dirent **entries;
 192
 193         do {
 194                 sep = strchr(ptr, ':');
 195
 196                 if (sep) {
 197                         *sep = 0;
 198                 }
 199
 200                 entries = NULL;
 201                 n = php_scandir(ptr, &entries, psi_select_dirent, alphasort);
 202
 203                 if (n > 0) {
 204                         for (i = 0; i < n; ++i) {
 205                                 char psi[MAXPATHLEN];
 206                                 struct psi_parser P;
 207
 208                                 if (MAXPATHLEN <= slprintf(psi, MAXPATHLEN, "%s/%s", ptr, entries[i]->d_name)) {
 209                                         C->error(C, NULL, PSI_WARNING, "Path to PSI file too long: %s/%s",
 210                                                 ptr, entries[i]->d_name);
 211                                 }
 212                                 if (!psi_parser_init(&P, psi, C->error, C->flags)) {
 213                                         C->error(C, NULL, PSI_WARNING, "Failed to init PSI parser (%s): %s",
 214                                                 psi, strerror(errno));
 215                                         continue;
 216                                 }
 217
 218                                 while (0 < psi_parser_scan(&P)) {
 219                                         psi_parser_parse(&P, psi_token_alloc(&P));
 220                                         if (P.num == PSI_T_EOF) {
 221                                                 break;
 222                                         }
 223                                 }
 224
 225                                 psi_parser_parse(&P, NULL);
 226                                 psi_context_validate(C, &P);
 227                                 psi_parser_dtor(&P);
 228                         }
 229                 }
 230
 231                 if (entries) {
 232                         for (i = 0; i < n; ++i) {
 233                                 free(entries[i]);
 234                         }
 235                         free(entries);
 236                 }
 237
 238                 ptr = sep + 1;
 239         } while (sep);
 240
 241
 242         if (psi_context_compile(C) && SUCCESS != zend_register_functions(NULL, C->closures, NULL, MODULE_PERSISTENT)) {
 243                 C->error(C, NULL, PSI_WARNING, "Failed to register functions!");
 244         }
 245
 246         free(cpy);
 247
 248 }
 249
 250 zend_function_entry *psi_context_compile(struct psi_context *C)
 251 {
 252         size_t i;
 253         zend_constant zc;
 254
 255         zc.flags = CONST_PERSISTENT|CONST_CS;
 256         zc.module_number = EG(current_module)->module_number;
 257
 258         if (C->consts) {
 259                 for (i = 0; i < C->consts->count; ++i) {
 260                         constant *c = C->consts->list[i];
 261
 262                         zc.name = zend_string_init(c->name + (c->name[0] == '\\'), strlen(c->name) - (c->name[0] == '\\'), 1);
 263                         ZVAL_NEW_STR(&zc.value, zend_string_init(c->val->text, strlen(c->val->text), 1));
 264
 265                         switch (c->type->type) {
 266                         case PSI_T_BOOL:
 267                                 convert_to_boolean(&zc.value);
 268                                 break;
 269                         case PSI_T_INT:
 270                                 convert_to_long(&zc.value);
 271                                 break;
 272                         case PSI_T_FLOAT:
 273                                 convert_to_double(&zc.value);
 274                                 break;
 275                         }
 276                         zend_register_constant(&zc);
 277                 }
 278         }
 279         if (C->enums) {
 280                 for (i = 0; i < C->enums->count; ++i) {
 281                         decl_enum *e = C->enums->list[i];
 282                         size_t j;
 283
 284                         for (j = 0; j < e->items->count; ++j) {
 285                                 decl_enum_item *i = e->items->list[j];
 286                                 zend_string *name = strpprintf(0, "psi\\%s\\%s", e->name, i->name);
 287
 288                                 zc.name = zend_string_dup(name, 1);
 289                                 ZVAL_LONG(&zc.value, psi_long_num_exp(i->num, NULL));
 290                                 zend_register_constant(&zc);
 291                                 zend_string_release(name);
 292                         }
 293                 }
 294         }
 295
 296         return C->closures = C->ops->compile(C);
 297 }
 298
 299
 300 void psi_context_call(struct psi_context *C, struct decl_callinfo *decl_call, struct impl_vararg *va)
 301 {
 302         C->ops->call(C, decl_call, va);
 303 }
 304
 305
 306 void psi_context_dtor(struct psi_context *C)
 307 {
 308         size_t i;
 309         zend_function_entry *zfe;
 310
 311         if (C->ops->dtor) {
 312                 C->ops->dtor(C);
 313         }
 314
 315         free_decl_libs(&C->psi.libs);
 316
 317         if (C->data) {
 318                 for (i = 0; i < C->count; ++i) {
 319                         psi_data_dtor(&C->data[i]);
 320                 }
 321                 free(C->data);
 322         }
 323
 324         if (C->closures) {
 325                 for (zfe = C->closures; zfe->fname; ++zfe) {
 326                         free((void *) zfe->arg_info);
 327                 }
 328                 free(C->closures);
 329         }
 330
 331         if (C->consts) {
 332                 if (C->consts->list) {
 333                         free(C->consts->list);
 334                 }
 335                 free(C->consts);
 336         }
 337         if (C->defs) {
 338                 if (C->defs->list) {
 339                         free(C->defs->list);
 340                 }
 341                 free(C->defs);
 342         }
 343         if (C->structs) {
 344                 if (C->structs->list) {
 345                         free(C->structs->list);
 346                 }
 347                 free(C->structs);
 348         }
 349         if (C->unions) {
 350                 if (C->unions->list) {
 351                         free(C->unions->list);
 352                 }
 353                 free(C->unions);
 354         }
 355         if (C->enums) {
 356                 if (C->enums->list) {
 357                         free(C->enums->list);
 358                 }
 359                 free(C->enums);
 360         }
 361         if (C->decls) {
 362                 if (C->decls->list) {
 363                         free(C->decls->list);
 364                 }
 365                 free(C->decls);
 366         }
 367         if (C->impls) {
 368                 if (C->impls->list) {
 369                         free(C->impls->list);
 370                 }
 371                 free(C->impls);
 372         }
 373
 374         memset(C, 0, sizeof(*C));
 375 }
 376
 377 void psi_context_free(struct psi_context **C)
 378 {
 379         if (*C) {
 380                 psi_context_dtor(*C);
 381                 free(*C);
 382                 *C = NULL;
 383         }
 384 }