-#define psi_predef_count(of) ((sizeof(psi_predef ##of## s)/sizeof(psi_predef ##of))-1)
-typedef struct psi_predef_type {
- token_t type_tag;
- const char *type_name;
- const char *alias;
-} psi_predef_type;
-static const psi_predef_type psi_predef_types[] = {
- PHP_PSI_TYPES{0}
-};
-#define psi_predef_type_count() psi_predef_count(_type)
-
-typedef struct psi_predef_const {
- token_t type_tag;
- const char *type_name;
- const char *name;
- const char *val_text;
- token_t val_type_tag;
-} psi_predef_const;
-static const psi_predef_const psi_predef_consts[] = {
- PHP_PSI_CONSTS{0}
-};
-#define psi_predef_const_count() psi_predef_count(_const)
-
-typedef struct psi_predef_struct_member {
- token_t type_tag;
- const char *type_name;
- const char *name;
- size_t off;
- size_t len;
- size_t pointer_level;
- size_t array_size;
-} psi_predef_struct_member;
-#define PSI_PREDEF_STRUCT_MEMBERS 32
-typedef struct psi_predef_struct {
- const char *name;
- size_t size;
- psi_predef_struct_member members[PSI_PREDEF_STRUCT_MEMBERS];
-} psi_predef_struct;
-static const psi_predef_struct psi_predef_structs[] = {
- PHP_PSI_STRUCTS{0}
-};
-#define psi_predef_struct_count() psi_predef_count(_struct)
-
-PHP_PSI_MACROS
-
-typedef struct psi_predef_func {
- const char *name;
- void (*func)(void);
-} psi_predef_func;
-static psi_predef_func psi_predef_funcs[] = {
- PHP_PSI_FUNCS{0}
-};
-#define psi_predef_func_count() psi_predef_count(_func)
-
-static int validate_lib(PSI_Data *data, void **dlopened) {
- char lib[MAXPATHLEN];
- const char *ptr = data->psi.file.ln;
- size_t len;
-
- if (!ptr) {
- /* FIXME: assume stdlib */
- return 1;
- } else if (!strchr(ptr, '/')) {
- len = snprintf(lib, MAXPATHLEN, "lib%s.%s", ptr, PHP_PSI_SHLIB_SUFFIX);
- if (MAXPATHLEN == len) {
- data->error(PSI_WARNING, "Library name too long: '%s'", ptr);
- }
- lib[len] = 0;
- ptr = lib;
- }
- if (!(*dlopened = dlopen(ptr, RTLD_LAZY|RTLD_LOCAL))) {
- data->error(PSI_WARNING, "Could not open library '%s': %s.",
- data->psi.file.ln, dlerror());
- return 0;
- }
- return 1;
-}
-
-static inline int locate_decl_type_alias(decl_typedefs *defs, decl_type *type) {
- size_t i;
-
- if (type->real) {
- return 1;
- }
- for (i = 0; i < defs->count; ++i) {
- if (!strcmp(defs->list[i]->alias, type->name)) {
- type->real = defs->list[i]->type;
- return 1;
- }
- }
- return 0;
-}
-static inline int locate_decl_type_struct(decl_structs *structs, decl_type *type) {
- size_t i;
-
- if (type->strct) {
- return 1;
- }
- for (i = 0; i < structs->count; ++i) {
- if (!strcmp(structs->list[i]->name, type->name)) {
- type->strct = structs->list[i];
- return 1;
- }
- }
- return 0;
-}
-
-static inline int validate_decl_type(PSI_Data *data, decl_type *type) {
- switch (type->type) {
- case PSI_T_NAME:
- if (!data->defs |!locate_decl_type_alias(data->defs, type)) {
- return 0;
- }
- return validate_decl_type(data, type->real);
- case PSI_T_STRUCT:
- if (!data->structs || !locate_decl_type_struct(data->structs, type)) {
- return 0;
- }
- break;
- }
- return 1;
-}
-static inline int validate_decl_typedef(PSI_Data *data, decl_typedef *def) {
- if (!validate_decl_type(data, def->type)) {
- data->error(PSI_WARNING, "Type '%s' cannot be aliased to '%s'",
- def->type->name, def->alias);
- return 0;
- }
- /* FIXME: check def->alias */
- return 1;
-}
-
-static inline int validate_constant(PSI_Data *data, constant *c) {
- /* FIXME */
- return 1;
-}
-
-static inline int validate_decl_arg(PSI_Data *data, decl_arg *arg) {
- if (!validate_decl_type(data, arg->type)) {
- data->error(PSI_WARNING, "Cannot use '%s' as type for '%s'",
- arg->type->name, arg->var->name);
- return 0;
- }
- return 1;
-}
-
-static inline int validate_decl_struct(PSI_Data *data, decl_struct *s) {
- size_t i;
-
- for (i = 0; i < s->args->count; ++i) {
- if (!validate_decl_arg(data, s->args->args[i])) {
- return 0;
- }
- }
-
- for (i = 0; i < s->args->count; ++i) {
- decl_arg *darg = s->args->args[i];
-
- if (!validate_decl_arg(data, darg)) {
- return 0;
- }
-
- ZEND_ASSERT(!darg->var->arg || darg->var->arg == darg);
- darg->var->arg = darg;
-
- if (!darg->layout) {
- token_t t;
-
- if (darg->var->pointer_level && (!darg->var->array_size || darg->var->pointer_level == 1)) {
- t = PSI_T_POINTER;
- } else {
- t = real_decl_type(darg->type)->type;
- }
-
- if (i) {
- decl_arg *last = s->args->args[i-1];
- darg->layout = init_decl_struct_layout(
- psi_t_align(t, last->layout->pos + last->layout->len),
- psi_t_size(t) * darg->var->array_size);
- } else {
- darg->layout = init_decl_struct_layout(0, psi_t_size(t));
- }
- }
- if (s->size < darg->layout->pos + darg->layout->len) {
- s->size = darg->layout->pos + darg->layout->len;
- }
- }
- return 1;
-}
-
-static const char * const abi_ccs[] = {
- "default", /* \ */
- "extern", /* > - all the same */
- "cdecl", /* / */
- "stdcall",
- "fastcall",
-};
-static inline int validate_decl_abi(PSI_Data *data, decl_abi *abi) {
- size_t i;
-
- for (i = 0; i < sizeof(abi_ccs)/sizeof(char*); ++i) {
- if (strcasecmp(abi->convention, abi_ccs[i])) {
- return 1;
- }
- }
- data->error(PSI_WARNING, "Invalid calling convention: '%s'", abi->convention);
- return 0;
-}
-static inline int validate_decl_func(PSI_Data *data, void *dl, decl *decl, decl_arg *func)
-{
- size_t i;
-
- if (!strcmp(func->var->name, "dlsym")) {
- data->error(PSI_WARNING, "Cannot dlsym dlsym (sic!)");
- return 0;
- }
-
- if (!validate_decl_arg(data, func)) {
- return 0;
- }
- for (i = 0; i < psi_predef_func_count(); ++i) {
- psi_predef_func *pre = &psi_predef_funcs[i];
-
- if (!strcmp(func->var->name, pre->name)) {
- decl->call.sym = pre->func;
- break;
- }
- }
- if (!decl->call.sym) {
-#ifndef RTLD_NEXT
-# define RTLD_NEXT ((void *) -1l)
-#endif
- decl->call.sym = dlsym(dl ?: RTLD_NEXT, func->var->name);
- if (!decl->call.sym) {
- data->error(PSI_WARNING, "Failed to locate symbol '%s': %s",
- func->var->name, dlerror());
- }
- }
- return 1;
-}
-
-static inline int validate_decl(PSI_Data *data, void *dl, decl *decl) {
- if (!validate_decl_abi(data, decl->abi)) {
- return 0;
- }
- if (!validate_decl_func(data, dl, decl, decl->func)) {
- return 0;
- }
- if (decl->args) {
- size_t i;
-
- for (i = 0; i < decl->args->count; ++i) {
- if (!validate_decl_arg(data, decl->args->args[i])) {
- return 0;
- }
- }
- }
- return 1;
-}
-static inline decl_arg *locate_decl_var_arg(decl_var *var, decl_args *args) {
- size_t i;
-
- for (i = 0; i < args->count; ++i) {
- decl_arg *arg = args->args[i];
-
- if (!strcmp(var->name, arg->var->name)) {
- return var->arg = arg;
- }
- }
-
- return NULL;
-}
-static inline decl_arg *locate_struct_member(decl_struct *s, decl_var *var) {
- if (s->args) {
- return locate_decl_var_arg(var, s->args);
- }
-
- return NULL;
-}
-static inline int validate_set_value(PSI_Data *data, set_value *set, decl_arg *ref, decl_args *ref_list) {
- size_t i;
- decl_type *ref_type = real_decl_type(ref->type);
- decl_var *set_var = set->vars->vars[0];
-
- switch (set->func->type) {
- case PSI_T_TO_BOOL:
- set->func->handler = psi_to_bool;
- break;
- case PSI_T_TO_INT:
- set->func->handler = psi_to_int;
- break;
- case PSI_T_TO_FLOAT:
- set->func->handler = psi_to_double;
- break;
- case PSI_T_TO_STRING:
- set->func->handler = psi_to_string;
- break;
- case PSI_T_TO_ARRAY:
- set->func->handler = psi_to_array;
- break;
- EMPTY_SWITCH_DEFAULT_CASE();
- }
-
- for (i = 1; i < set->vars->count; ++i) {
- if (!locate_decl_var_arg(set->vars->vars[i], ref_list)) {
- return 0;
- }
- }
- set_var->arg = ref;
-
- if (set->count && (set->func->type != PSI_T_TO_ARRAY || (ref_type->type != PSI_T_STRUCT && !ref->var->arg->var->pointer_level))) {
- data->error(E_WARNING, "Inner `set` statement casts only work with to_array() casts on structs or pointers");
- return 0;
- }
-
- if (ref_type->type == PSI_T_STRUCT) {
- /* to_array(struct, to_...) */
- for (i = 0; i < set->count; ++i) {
- decl_var *sub_var = set->inner[i]->vars->vars[0];
- decl_arg *sub_ref = locate_struct_member(ref_type->strct, sub_var);
-
- if (sub_ref) {
- if (!validate_set_value(data, set->inner[i], sub_ref, ref_type->strct->args)) {
- return 0;
- }
- set->inner[i]->outer.set = set;
- }
- }
- } else if (set->count == 1) {
- /* to_array(ptr, to_string(*ptr)) */
- decl_var *sub_var = set->inner[0]->vars->vars[0];
- decl_arg *sub_ref = locate_decl_var_arg(sub_var, ref_list);
-
- if (sub_ref) {
- if (strcmp(sub_var->name, set_var->name)) {
- data->error(E_WARNING, "Inner `set` statement casts on pointers must reference the same variable");
- return 0;
- }
- if (!validate_set_value(data, set->inner[0], sub_ref, ref_list)) {
- return 0;
- }
- set->inner[0]->outer.set = set;
- }
- } else if (set->count > 1) {
- data->error(E_WARNING, "Inner `set` statement casts on pointers may only occur once");
- return 0;
- }
-
- return 1;
-}
-static inline decl *locate_impl_decl(decls *decls, return_stmt *ret) {
- if (decls) {
- size_t i;
-
- for (i = 0; i < decls->count; ++i) {
- if (!strcmp(decls->list[i]->func->var->name, ret->set->vars->vars[0]->name)) {
- ret->decl = decls->list[i]->func;
- return decls->list[i];
- }
- }
- }
-
- return NULL;
-}
-static inline int validate_impl_ret_stmt(PSI_Data *data, impl *impl) {
- return_stmt *ret;
-
- /* we must have exactly one ret stmt delcaring the native func to call */
- /* and which type cast to apply */
- if (impl->stmts->ret.count != 1) {
- if (impl->stmts->ret.count > 1) {
- data->error(PSI_WARNING, "Too many `return` statements for implmentation %s;"
- " found %zu, exactly one is needed",
- impl->func->name, impl->stmts->ret.count);
- } else {
- data->error(PSI_WARNING, "Missing `return` statement for implementation %s",
- impl->func->name);
- }
- return 0;
- }
-
- ret = impl->stmts->ret.list[0];
-
- if (!(impl->decl = locate_impl_decl(data->decls, ret))) {
- data->error(PSI_WARNING, "Missing declaration for implementation %s",
- impl->func->name);
- return 0;
- }
-
- if (!validate_set_value(data, ret->set, ret->decl, impl->decl->args)) {
- return 0;
- }
-
- impl->decl->impl = impl;