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