#include <jit/jit.h>
+#include "php.h"
+#include "php_psi.h"
#include "validator.h"
PSI_Validator *PSI_ValidatorInit(PSI_Validator *V, PSI_Parser *P)
}
return 1;
}
+
static inline int locate_decl_type_alias(decl_typedefs *defs, decl_type *type) {
size_t i;
}
return 0;
}
-static inline int validate_decl_type(PSI_Validator *V, decl_arg *arg, decl_type *type) {
- if (type->type == PSI_T_NAME) {
+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_Validator *V, decl_type *type) {
+ switch (type->type) {
+ case PSI_T_NAME:
if (!V->defs || !locate_decl_type_alias(V->defs, type)) {
- V->error(PSI_WARNING, "Cannot use '%s' as type for '%s';"
- " Use 'typedef <type> <basic_type>;' statement",
- type->name, arg->var->name);
return 0;
}
+ return validate_decl_type(V, type->real);
+ case PSI_T_STRUCT:
+ if (!V->structs || !locate_decl_type_struct(V->structs, type)) {
+ return 0;
+ }
+ break;
}
return 1;
}
return 1;
}
-static inline int validate_decl_func(PSI_Validator *V, decl *decl, decl_arg *func)
-{
- if (!strcmp(func->var->name, "dlsym")) {
- V->error(PSI_WARNING, "Cannot dlsym dlsym (sic!)");
- return 0;
- }
-
- if (!validate_decl_type(V, func, func->type)) {
- return 0;
- }
-
- decl->dlptr = dlsym(V->dlopened, func->var->name);
- if (!decl->dlptr) {
- V->error(PSI_WARNING, "Failed to located symbol '%s': %s",
- func->var->name, dlerror());
- }
- return 1;
-}
static const char * const abi_ccs[] = {
"default", /* \ */
"extern", /* > - all the same */
static inline int validate_decl_abi(PSI_Validator *V, decl_abi *abi) {
size_t i;
- for (i = 0; i < sizeof(abi_ccs)/sizeof(char*); ++ i) {
+ for (i = 0; i < sizeof(abi_ccs)/sizeof(char*); ++i) {
if (strcasecmp(abi->convention, abi_ccs[i])) {
return 1;
}
V->error(PSI_WARNING, "Invalid calling convention: '%s'", abi->convention);
return 0;
}
-static inline int validate_decl_arg(PSI_Validator *V, decl *decl, decl_arg *arg) {
- if (!validate_decl_type(V, arg, arg->type)) {
+static inline int validate_decl_arg(PSI_Validator *V, decl_arg *arg) {
+ if (!validate_decl_type(V, arg->type)) {
+ V->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_args(PSI_Validator *V, decl *decl, decl_args *args) {
+static inline int validate_decl_args(PSI_Validator *V, decl_args *args) {
size_t i;
for (i = 0; i < args->count; ++i) {
- if (!validate_decl_arg(V, decl, args->args[i])) {
+ if (!validate_decl_arg(V, args->args[i])) {
return 0;
}
}
return 1;
}
+static inline int validate_decl_func(PSI_Validator *V, decl *decl, decl_arg *func)
+{
+ if (!strcmp(func->var->name, "dlsym")) {
+ V->error(PSI_WARNING, "Cannot dlsym dlsym (sic!)");
+ return 0;
+ }
+
+ if (!validate_decl_arg(V, func)) {
+ return 0;
+ }
+#ifndef RTLD_NEXT
+# define RTLD_NEXT ((void *) -1l)
+#endif
+ decl->dlptr = dlsym(V->dlopened ?: RTLD_NEXT, func->var->name);
+ if (!decl->dlptr) {
+ V->error(PSI_WARNING, "Failed to located symbol '%s': %s",
+ func->var->name, dlerror());
+ }
+ return 1;
+}
static inline int validate_decl(PSI_Validator *V, decl *decl) {
if (!validate_decl_abi(V, decl->abi)) {
return 0;
if (!validate_decl_func(V, decl, decl->func)) {
return 0;
}
- if (decl->args && !validate_decl_args(V, decl, decl->args)) {
+ if (decl->args && !validate_decl_args(V, decl->args)) {
return 0;
}
return 1;
}
return 1;
}
+static inline int validate_struct(PSI_Validator *V, decl_struct *s) {
+ size_t i;
+
+ if (!validate_decl_args(V, s->args)) {
+ return 0;
+ }
+
+ s->layout = calloc(s->args->count, sizeof(*s->layout));
+ for (i = 0; i < s->args->count; ++i) {
+ decl_arg *darg = s->args->args[i];
+ token_t t;
+
+ if (!validate_decl_arg(V, darg)) {
+ return 0;
+ }
+
+ t = darg->var->pointer_level
+ ? PSI_T_POINTER
+ : real_decl_type(darg->type)->type;
+
+ if (i) {
+ decl_struct_layout *l = &s->layout[i-1];
+ s->layout[i].pos = psi_t_align(t, l->pos + l->len);
+ } else {
+ s->layout[i].pos = 0;
+ }
+ s->layout[i].len = psi_t_size(t);
+ }
+ return 1;
+}
+static inline int validate_structs(PSI_Validator *V) {
+ size_t i;
+
+ for (i = 0; i < V->structs->count; ++i) {
+ if (!validate_struct(V, V->structs->list[i])) {
+ return 0;
+ }
+ }
+ return 1;
+}
static inline int validate_impl_type(PSI_Validator *V, impl *impl, impl_type *type) {
/* FIXME */
}
return 1;
}
+
static inline decl *locate_impl_decl(decls *decls, return_stmt *ret) {
size_t i;
for (i = 0; i < decls->count; ++i) {
if (!strcmp(decls->list[i]->func->var->name, ret->decl->name)) {
+ ret->decl->arg = decls->list[i]->func;
return decls->list[i];
}
}
return NULL;
}
-
-static inline int validate_impl_stmts(PSI_Validator *V, impl *impl, impl_stmts *stmts) {
- /* okay,
- * - we must have exactly one ret stmt delcaring the native func to call and which type cast to apply
- * - we can have multiple let stmts; every arg of the ret stmts var (the function to call) must have one
- * - we can have any count of set stmts; processing out vars
- * - we can have any count of free stmts; freeing any out vars
- */
- size_t i, j, k;
- return_stmt *ret;
- decl *decl;
-
- if (!stmts) {
- V->error(PSI_WARNING, "Missing body for implementation %s!",
- impl->func->name);
- return 0;
- }
- if (stmts->ret.count != 1) {
- if (stmts->ret.count > 1) {
- V->error(PSI_WARNING, "Too many `ret` statements for implmentation %s;"
- "found %zu, exactly one is needed",
- impl->func->name, stmts->ret.count);
+static inline int validate_impl_ret_stmt(PSI_Validator *V, impl *impl) {
+ /* 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) {
+ V->error(PSI_WARNING, "Too many `return` statements for implmentation %s;"
+ " found %zu, exactly one is needed",
+ impl->func->name, impl->stmts->ret.count);
} else {
- V->error(PSI_WARNING, "Missing `ret` statement for implementation %s",
+ V->error(PSI_WARNING, "Missing `return` statement for implementation %s",
impl->func->name);
}
return 0;
}
-
- ret = stmts->ret.list[0];
- decl = locate_impl_decl(V->decls, ret);
- if (!decl) {
+ if (!(impl->decl = locate_impl_decl(V->decls, impl->stmts->ret.list[0]))) {
V->error(PSI_WARNING, "Missing declaration for implementation %s",
impl->func->name);
return 0;
}
+ return 1;
+}
+static inline int validate_impl_let_stmts(PSI_Validator *V, impl *impl) {
+ size_t i, j;
+ /* we can have multiple let stmts */
/* check that we have a let stmt for every decl arg */
- for (i = 0; i < decl->args->count; ++i) {
- decl_arg *darg = decl->args->args[i];
+ if (impl->decl->args) for (i = 0; i < impl->decl->args->count; ++i) {
+ decl_arg *darg = impl->decl->args->args[i];
int check = 0;
- for (j = 0; j < stmts->let.count; ++j) {
- let_stmt *let = stmts->let.list[j];
+ for (j = 0; j < impl->stmts->let.count; ++j) {
+ let_stmt *let = impl->stmts->let.list[j];
if (!strcmp(let->var->name, darg->var->name)) {
darg->let = let;
}
if (!check) {
V->error(PSI_WARNING, "Missing `let` statement for arg '%s %.*s%s'"
- "of declaration '%s' for implementation '%s'",
+ " of declaration '%s' for implementation '%s'",
darg->type->name, (int) darg->var->pointer_level, "*****",
- darg->var->name, decl->func->var->name, impl->func->name);
+ darg->var->name, impl->decl->func->var->name, impl->func->name);
return 0;
}
}
/* check that the let_value references a known variable or NULL */
- for (i = 0; i < stmts->let.count; ++i) {
- let_stmt *let = stmts->let.list[i];
+ for (i = 0; i < impl->stmts->let.count; ++i) {
+ let_stmt *let = impl->stmts->let.list[i];
int check = 0;
- if (let->val->var) {
- for (j = 0; j < impl->func->args->count; ++j) {
+ if (let->val && let->val->func && let->val->func->alloc) {
+ if (!validate_decl_type(V, let->val->func->alloc->type)) {
+ V->error(PSI_WARNING, "Cannot use '%s' as type for calloc in `let` statement",
+ let->val->func->alloc->type->name);
+ return 0;
+ }
+ }
+ if (let->val && let->val->var) {
+ if (impl->func->args) for (j = 0; j < impl->func->args->count; ++j) {
impl_arg *iarg = impl->func->args->args[j];
if (!strcmp(let->val->var->name, iarg->var->name)) {
}
}
}
+ return 1;
+}
+static inline int validate_impl_set_stmts(PSI_Validator *V, impl *impl) {
+ size_t i, j, k;
+ /* we can have any count of set stmts; processing out vars */
/* check that set stmts reference known variables */
- for (i = 0; i < stmts->set.count; ++i) {
- set_stmt *set = stmts->set.list[i];
+ for (i = 0; i < impl->stmts->set.count; ++i) {
+ set_stmt *set = impl->stmts->set.list[i];
int check = 0;
- for (j = 0; j < impl->func->args->count; ++j) {
+ if (impl->func->args) for (j = 0; j < impl->func->args->count; ++j) {
impl_arg *iarg = impl->func->args->args[j];
if (!strcmp(set->var->name, iarg->var->name)) {
decl_var *set_var = set->val->vars->vars[j];
check = 0;
- for (k = 0; k < decl->args->count; ++k) {
- decl_arg *set_arg = decl->args->args[k];
+ if (impl->decl->args) for (k = 0; k < impl->decl->args->count; ++k) {
+ decl_arg *set_arg = impl->decl->args->args[k];
if (!strcmp(set_var->name, set_arg->var->name)) {
check = 1;
}
}
}
- /* check free stmts */
- for (i = 0; i < stmts->fre.count; ++i) {
- free_stmt *fre = stmts->fre.list[i];
+ return 1;
+}
+static inline int validate_impl_free_stmts(PSI_Validator *V, impl *impl) {
+ size_t i, j, k;
+ /* we can have any count of free stmts; freeing any out vars */
+ for (i = 0; i < impl->stmts->fre.count; ++i) {
+ free_stmt *fre = impl->stmts->fre.list[i];
for (j = 0; j < fre->vars->count; ++j) {
decl_var *free_var = fre->vars->vars[j];
int check = 0;
- if (!strcmp(free_var->name, decl->func->var->name)) {
+ if (!strcmp(free_var->name, impl->decl->func->var->name)) {
continue;
}
- for (k = 0; k < decl->args->count; ++k) {
- decl_arg *free_arg = decl->args->args[k];
+ if (impl->decl->args) for (k = 0; k < impl->decl->args->count; ++k) {
+ decl_arg *free_arg = impl->decl->args->args[k];
if (!strcmp(free_var->name, free_arg->var->name)) {
check = 1;
}
}
}
+ return 1;
+}
+static inline int validate_impl_stmts(PSI_Validator *V, impl *impl) {
+ if (!impl->stmts) {
+ V->error(PSI_WARNING, "Missing body for implementation %s!",
+ impl->func->name);
+ return 0;
+ }
+
+ if (!validate_impl_ret_stmt(V, impl)) {
+ return 0;
+ }
- impl->decl = decl;
+ if (!validate_impl_let_stmts(V, impl)) {
+ return 0;
+ }
+ if (!validate_impl_set_stmts(V, impl)) {
+ return 0;
+ }
+ if (!validate_impl_free_stmts(V, impl)) {
+ return 0;
+ }
return 1;
}
if (!validate_impl_func(V, impl, impl->func)) {
return 0;
}
- if (!validate_impl_stmts(V, impl, impl->stmts)) {
+ if (!validate_impl_stmts(V, impl)) {
return 0;
}
return 1;
if (V->defs && !validate_typedefs(V)) {
return 0;
}
+ if (V->structs && !validate_structs(V)) {
+ return 0;
+ }
if (V->decls && !validate_decls(V)) {
return 0;
}
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