X-Git-Url: https://git.m6w6.name/?p=m6w6%2Fext-psi;a=blobdiff_plain;f=src%2Fcontext.c;h=6408ebeec29f374138237de87301bf4292110d38;hp=7670462cd255e8769f0d01caa7ffa3ae803d8729;hb=4e221dbe150560ad8847606164b80020249f136e;hpb=762750b4a3f4e0471993849c4bd12965f6b62356 diff --git a/src/context.c b/src/context.c index 7670462..6408ebe 100644 --- a/src/context.c +++ b/src/context.c @@ -1,24 +1,213 @@ -#include -#include -#include -#include +/******************************************************************************* + Copyright (c) 2016, Michael Wallner . + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE + FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*******************************************************************************/ + +#include "php_psi_stdinc.h" #include "php.h" + +#ifdef HAVE_DIRENT_H +# include +# define NAMLEN(dirent) strlen ((dirent)->d_name) +#else +# define dirent direct +# define NAMLEN(dirent) ((dirent)->d_namlen) +# ifdef HAVE_SYS_NDIR_H +# include +# endif +# ifdef HAVE_SYS_DIR_H +# include +# endif +# ifdef HAVE_NDIR_H +# include +# endif +#endif + +#include + #include "php_scandir.h" -#include "context.h" +#include "php_psi.h" +#include "calc.h" +#include "call.h" +#include "libjit.h" +#include "libffi.h" + +#include "token.h" #include "parser.h" -#include "validator.h" -PSI_Context *PSI_ContextInit(PSI_Context *C, PSI_ContextOps *ops, PSI_ContextErrorFunc error) +#define PSI_PREDEF_TYPES +#define PSI_PREDEF_CONSTS +#define PSI_PREDEF_COMPOSITES +#define PSI_PREDEF_DECLS +#include "php_psi_posix.h" + +struct psi_context *psi_context_init(struct psi_context *C, struct psi_context_ops *ops, psi_error_cb error, unsigned flags) { + struct psi_data T; + struct psi_predef_type *predef_type; + struct psi_predef_const *predef_const; + struct psi_predef_composite *predef_composite; + struct psi_predef_decl *predef_decl; + if (!C) { C = malloc(sizeof(*C)); } memset(C, 0, sizeof(*C)); - C->error = error; + psi_data_ctor(PSI_DATA(C), error, flags); C->ops = ops; - ops->init(C); + + if (ops->init) { + ops->init(C); + } + + assert(ops->call != NULL); + assert(ops->compile != NULL); + + /* build up predefs in a temporary PSI_Data for validation */ + memset(&T, 0, sizeof(T)); + psi_data_ctor_with_dtors(&T, error, flags); + + for (predef_type = &psi_predef_types[0]; predef_type->type_tag; ++predef_type) { + struct psi_decl_type *type = psi_decl_type_init(predef_type->type_tag, predef_type->type_name); + struct psi_decl_var *var = psi_decl_var_init(predef_type->alias, 0, 0); /* FIXME: indirection */ + struct psi_decl_arg *def = psi_decl_arg_init(type, var); + + T.types = psi_plist_add(T.types, &def); + } + for (predef_const = &psi_predef_consts[0]; predef_const->type_tag; ++predef_const) { + struct psi_const_type *type = psi_const_type_init(predef_const->type_tag, predef_const->type_name); + struct psi_impl_def_val *val; + struct psi_const *constant; + + switch (type->type) { + case PSI_T_INT: + val = psi_impl_def_val_init(PSI_T_INT, NULL); + val->ival.zend.lval = predef_const->value.lval; + break; + case PSI_T_STRING: + val = psi_impl_def_val_init(PSI_T_STRING, NULL); + val->ival.zend.str = zend_string_init(predef_const->value.ptr, strlen(predef_const->value.ptr), 1); + break; + default: + assert(0); + break; + } + + constant = psi_const_init(type, predef_const->var_name, val); + T.consts = psi_plist_add(T.consts, &constant); + } + for (predef_composite = &psi_predef_composites[0]; predef_composite->type_tag; ++predef_composite) { + struct psi_predef_composite *member; + struct psi_decl_struct *dstruct; + struct psi_decl_union *dunion; + struct psi_plist *dargs = psi_plist_init((psi_plist_dtor) psi_decl_arg_free); + + switch (predef_composite->type_tag) { + case PSI_T_STRUCT: + dstruct = psi_decl_struct_init(predef_composite->var_name, dargs); + dstruct->size = predef_composite->size; + dstruct->align = predef_composite->offset; + break; + case PSI_T_UNION: + dunion = psi_decl_union_init(predef_composite->var_name, dargs); + dunion->size = predef_composite->size; + dunion->align = predef_composite->offset; + break; + default: + assert(0); + } + for (member = &predef_composite[1]; member->type_tag; ++member) { + struct psi_decl_type *type; + struct psi_decl_var *dvar; + struct psi_decl_arg *darg; + + type = psi_decl_type_init(member->type_tag, member->type_name); + dvar = psi_decl_var_init(member->var_name, member->pointer_level, member->array_size); + darg = psi_decl_arg_init(type, dvar); + darg->layout = psi_layout_init(member->offset, member->size, NULL); + + switch (predef_composite->type_tag) { + case PSI_T_STRUCT: + dstruct->args = psi_plist_add(dstruct->args, &darg); + break; + case PSI_T_UNION: + dunion->args = psi_plist_add(dunion->args, &darg); + break; + default: + assert(0); + } + } + switch (predef_composite->type_tag) { + case PSI_T_STRUCT: + T.structs = psi_plist_add(T.structs, &dstruct); + break; + case PSI_T_UNION: + T.unions = psi_plist_add(T.unions, &dunion); + break; + default: + assert(0); + } + + predef_composite = member; + } + for (predef_decl = &psi_predef_decls[0]; predef_decl->type_tag; ++predef_decl) { + struct psi_predef_decl *farg; + struct psi_decl_type *dtype, *ftype = psi_decl_type_init(predef_decl->type_tag, predef_decl->type_name); + struct psi_decl_var *fname = psi_decl_var_init(predef_decl->var_name, predef_decl->pointer_level, predef_decl->array_size); + struct psi_decl_arg *tdef, *func = psi_decl_arg_init(ftype, fname); + struct psi_plist *args = psi_plist_init((psi_plist_dtor) psi_decl_arg_free); + struct psi_decl *decl = psi_decl_init(func, args); + + for (farg = &predef_decl[1]; farg->type_tag; ++farg) { + struct psi_decl_type *arg_type = psi_decl_type_init(farg->type_tag, farg->type_name); + struct psi_decl_var *arg_var = psi_decl_var_init(farg->var_name, farg->pointer_level, farg->array_size); + struct psi_decl_arg *darg = psi_decl_arg_init(arg_type, arg_var); + decl->args = psi_plist_add(decl->args, &darg); + } + + switch (predef_decl->kind) { + case DECL_KIND_VARARG: + decl->varargs = 1; + /* no break */ + case DECL_KIND_STD: + T.decls = psi_plist_add(T.decls, &decl); + break; + case DECL_KIND_FUNCTOR: + dtype = psi_decl_type_init(PSI_T_FUNCTION, fname->name); + dtype->real.func = decl; + tdef = psi_decl_arg_init(dtype, psi_decl_var_copy(fname)); + T.types = psi_plist_add(T.types, &tdef); + break; + default: + assert(0); + } + + predef_decl = farg; + } + + psi_context_add_data(C, &T); return C; } @@ -26,135 +215,247 @@ PSI_Context *PSI_ContextInit(PSI_Context *C, PSI_ContextOps *ops, PSI_ContextErr static int psi_select_dirent(const struct dirent *entry) { #ifndef FNM_CASEFOLD -#define FNM_CASEFOLD 0 +# define FNM_CASEFOLD 0 #endif return 0 == fnmatch("*.psi", entry->d_name, FNM_CASEFOLD); } - -void PSI_ContextBuild(PSI_Context *C, const char *path) +void psi_context_build(struct psi_context *C, const char *paths) { int i, n; - struct dirent **entries = NULL; + char *sep = NULL, *cpy = strdup(paths), *ptr = cpy; + struct dirent **entries; - n = php_scandir(path, &entries, psi_select_dirent, alphasort); + do { + sep = strchr(ptr, ':'); - if (n < 0) { - return; - C->error(PSI_WARNING, "Failed to scan PSI directory '%s'", path); - } else for (i = 0; i < n; ++i) { - char psi[MAXPATHLEN]; - PSI_Parser P; - PSI_Validator V; + if (sep) { + *sep = 0; + } + + entries = NULL; + n = php_scandir(ptr, &entries, psi_select_dirent, alphasort); - if (MAXPATHLEN <= slprintf(psi, MAXPATHLEN, "%s/%s", path, entries[i]->d_name)) { - C->error(PSI_WARNING, "Path to PSI file too long: %s/%s", - path, entries[i]->d_name); + if (n > 0) { + for (i = 0; i < n; ++i) { + char psi[MAXPATHLEN]; + struct psi_parser P; + struct psi_parser_input *I; + + if (MAXPATHLEN <= slprintf(psi, MAXPATHLEN, "%s/%s", ptr, entries[i]->d_name)) { + C->error(PSI_DATA(C), NULL, PSI_WARNING, "Path to PSI file too long: %s/%s", + ptr, entries[i]->d_name); + } + if (!psi_parser_init(&P, C->error, C->flags)) { + C->error(PSI_DATA(C), NULL, PSI_WARNING, "Failed to init PSI parser (%s): %s", + psi, strerror(errno)); + continue; + } + if (!(I = psi_parser_open_file(&P, psi, true))) { + C->error(PSI_DATA(C), NULL, PSI_WARNING, "Failed to open PSI file (%s): %s", + psi, strerror(errno)); + continue; + } + psi_parser_parse(&P, I); + psi_context_add_data(C, PSI_DATA(&P)); + psi_parser_dtor(&P); + free(I); + } } - if (!PSI_ParserInit(&P, psi, C->error, 0)) { - C->error(PSI_WARNING, "Failed to init PSI parser (%s): %s", - psi, strerror(errno)); - continue; + + if (entries) { + for (i = 0; i < n; ++i) { + free(entries[i]); + } + free(entries); } - while (-1 != PSI_ParserScan(&P)) { - PSI_ParserParse(&P, PSI_TokenAlloc(&P)); - }; - PSI_ParserParse(&P, NULL); + ptr = sep + 1; + } while (sep); - if (!PSI_ValidatorInit(&V, &P)) { - C->error(PSI_WARNING, "Failed to init PSI validator"); - break; - } - PSI_ParserDtor(&P); - - if (PSI_ValidatorValidate(&V)) { - zend_function_entry *closures; - - if (V.consts) { - zend_constant zc; - - zc.flags = CONST_PERSISTENT|CONST_CS; - zc.module_number = EG(current_module)->module_number; - - for (i = 0; i < V.consts->count; ++i) { - constant *c = V.consts->list[i]; - - zc.name = zend_string_init(c->name + (c->name[0] == '\\'), strlen(c->name) - (c->name[0] == '\\'), 1); - ZVAL_NEW_STR(&zc.value, zend_string_init(c->val->text, strlen(c->val->text), 1)); - - switch (c->type->type) { - case PSI_T_BOOL: - convert_to_boolean(&zc.value); - break; - case PSI_T_INT: - convert_to_long(&zc.value); - break; - case PSI_T_FLOAT: - convert_to_double(&zc.value); - break; - } - zend_register_constant(&zc); - } + + if (psi_context_compile(C) && SUCCESS != zend_register_functions(NULL, C->closures, NULL, MODULE_PERSISTENT)) { + C->error(PSI_DATA(C), NULL, PSI_WARNING, "Failed to register functions!"); + } + + free(cpy); +} + +zend_function_entry *psi_context_compile(struct psi_context *C) +{ + zend_constant zc; + + zc.flags = CONST_PERSISTENT|CONST_CS; + zc.module_number = EG(current_module)->module_number; + + if (C->consts) { + size_t i = 0; + struct psi_const *c; + + while (psi_plist_get(C->consts, i++, &c)) { + + if (zend_get_constant_str(c->name, strlen(c->name))) { + continue; } - closures = PSI_ContextCompile(C, (PSI_Data *) &V); - if (closures && SUCCESS != zend_register_functions(NULL, closures, NULL, MODULE_PERSISTENT)) { - C->error(PSI_WARNING, "Failed to register functions!"); + zc.name = zend_string_init(c->name, strlen(c->name), 1); + + switch (c->type->type) { + case PSI_T_BOOL: + ZVAL_BOOL(&zc.value, c->val->ival.zend.bval); + break; + case PSI_T_INT: + ZVAL_LONG(&zc.value, c->val->ival.zend.lval); + break; + case PSI_T_FLOAT: + ZVAL_DOUBLE(&zc.value, c->val->ival.dval); + break; + case PSI_T_STRING: + case PSI_T_QUOTED_STRING: + ZVAL_NEW_STR(&zc.value, zend_string_copy(c->val->ival.zend.str)); + break; + default: + assert(0); + break; } + + zend_register_constant(&zc); } - PSI_ValidatorDtor(&V); } - if (entries) { - for (i = 0; i < n; ++i) { - free(entries[i]); + + if (C->enums) { + size_t i = 0; + struct psi_decl_enum *e; + + while (psi_plist_get(C->enums, i++, &e)) { + size_t j = 0; + struct psi_decl_enum_item *item; + + while (psi_plist_get(e->items, j++, &item)) { + zend_string *name; + + if (psi_decl_type_is_anon(e->name, "enum")) { + name = strpprintf(0, "psi\\%s", item->name); + } else { + name = strpprintf(0, "psi\\%s\\%s", e->name, item->name); + } + + zc.name = zend_string_dup(name, 1); + ZVAL_LONG(&zc.value, psi_long_num_exp(item->num, NULL, NULL)); + zend_register_constant(&zc); + zend_string_release(name); + } } - free(entries); } + return C->closures = C->ops->compile(C); } -zend_function_entry *PSI_ContextCompile(PSI_Context *C, PSI_Data *D) + +ZEND_RESULT_CODE psi_context_call(struct psi_context *C, zend_execute_data *execute_data, zval *return_value, struct psi_impl *impl) { - size_t count = C->count++; - zend_function_entry *zfe; + struct psi_call_frame *frame; - C->data = realloc(C->data, C->count * sizeof(*C->data)); - PSI_DataExchange(&C->data[count], D); + frame = psi_call_frame_init(C, impl->decl, impl); + + if (SUCCESS != psi_call_frame_parse_args(frame, execute_data)) { + psi_call_frame_free(frame); + + return FAILURE; + } - zfe = C->ops->compile(C, &C->data[count]); + psi_call_frame_enter(frame); - C->closures = realloc(C->closures, C->count * sizeof(*C->closures)); - C->closures[count] = zfe; + if (SUCCESS != psi_call_frame_do_let(frame)) { + psi_call_frame_do_return(frame, return_value); + psi_call_frame_free(frame); - return zfe; + return FAILURE; + } + + if (SUCCESS != psi_call_frame_do_assert(frame, PSI_ASSERT_PRE)) { + psi_call_frame_do_return(frame, return_value); + psi_call_frame_free(frame); + + return FAILURE; + } + + psi_call_frame_do_call(frame); + + if (SUCCESS != psi_call_frame_do_assert(frame, PSI_ASSERT_POST)) { + psi_call_frame_do_return(frame, return_value); + psi_call_frame_free(frame); + + return FAILURE; + } + + psi_call_frame_do_return(frame, return_value); + psi_call_frame_do_set(frame); + psi_call_frame_do_free(frame); + psi_call_frame_free(frame); + + return SUCCESS; } -void PSI_ContextDtor(PSI_Context *C) + +void psi_context_dtor(struct psi_context *C) { size_t i; + zend_function_entry *zfe; + + if (C->ops->dtor) { + C->ops->dtor(C); + } - C->ops->dtor(C); + psi_data_dtor(PSI_DATA(C)); - for (i = 0; i < C->count; ++i) { - PSI_DataDtor(&C->data[i]); - if (C->closures[i]){ - free(C->closures[i]->arg_info); - free(C->closures[i]); + if (C->data) { + for (i = 0; i < C->count; ++i) { + psi_data_dtor(&C->data[i]); } + free(C->data); } - free(C->data); - free(C->closures); - memset(C, 0, sizeof(*C)); + if (C->closures) { + for (zfe = C->closures; zfe->fname; ++zfe) { + free((void *) zfe->arg_info); + } + free(C->closures); + } } -void PSI_ContextFree(PSI_Context **C) +void psi_context_free(struct psi_context **C) { if (*C) { - PSI_ContextDtor(*C); + psi_context_dtor(*C); free(*C); *C = NULL; } } +bool psi_context_add_data(struct psi_context *C, struct psi_data *P) +{ + struct psi_data *D; + + C->data = realloc(C->data, (C->count + 1) * sizeof(*C->data)); + D = psi_data_exchange(&C->data[C->count++], P); + + return psi_data_validate(PSI_DATA(C), D); +} + +void psi_context_dump(struct psi_context *C, int fd) +{ + + dprintf(fd, "// psi.engine=%s\n", + (char *) C->ops->query(C, PSI_CONTEXT_QUERY_SELF, NULL)); + + psi_data_dump(fd, PSI_DATA(C)); + +// size_t i; +// dprintf(fd, "/* parsed\n"); +// for (i = 0; i < C->count; ++i) { +// psi_data_dump(fd, &C->data[i]); +// } +// dprintf(fd, "*/\n"); + +}