# endif
#endif
+struct psi_ffi_context {
+ ffi_cif signature;
+ ffi_type *params[2];
+};
+
+struct psi_ffi_impl_info {
+ struct psi_context *context;
+ struct psi_call_frame *frame;
+
+ void *code;
+ ffi_closure *closure;
+};
+
+struct psi_ffi_callback_info {
+ struct psi_ffi_impl_info *impl_info;
+ struct psi_let_exp *let_exp;
+
+ void *code;
+ ffi_closure *closure;
+};
+
+struct psi_ffi_decl_info {
+ ffi_cif signature;
+ ffi_type *rv_array;
+ ffi_type *params[1];
+};
+
static void *psi_ffi_closure_alloc(size_t s, void **code)
{
#ifdef PSI_HAVE_FFI_CLOSURE_ALLOC
assert(FFI_OK == rc);
}
+#if HAVE_INT128
+static ffi_type *ffi_type_sint128;
+static ffi_type *ffi_type_uint128;
+#endif
+
static inline ffi_type *psi_ffi_decl_arg_type(struct psi_decl_arg *darg);
static inline ffi_type *psi_ffi_token_type(token_t t) {
return &ffi_type_sint64;
case PSI_T_UINT64:
return &ffi_type_uint64;
+#if HAVE_INT128
+ case PSI_T_INT128:
+ return ffi_type_sint128;
+ case PSI_T_UINT128:
+ return ffi_type_uint128;
+#endif
case PSI_T_BOOL:
return &ffi_type_uchar;
- case PSI_T_INT:
case PSI_T_ENUM:
return &ffi_type_sint;
- case PSI_T_LONG:
- return &ffi_type_slong;
case PSI_T_FLOAT:
return &ffi_type_float;
case PSI_T_DOUBLE:
}
return NULL;
}
-static void psi_ffi_struct_type_dtor(void *type) {
+static void psi_ffi_type_dtor(void *type) {
ffi_type *strct = type;
if (strct->elements) {
size_t i;
for (i = 0; i < padding; ++i) {
- ffi_type *pad = malloc(sizeof(*pad));
+ ffi_type *pad = pemalloc(sizeof(*pad), 1);
memcpy(pad, &ffi_type_schar, sizeof(*pad));
*els++ = pad;
return padding;
}
-static ffi_type **psi_ffi_struct_type_elements(struct psi_decl_struct *strct) {
- size_t i = 0, argc, nels = 0, offset = 0, maxalign = 0, last_arg_pos = -1;
- ffi_type **tmp, **els;
- struct psi_decl_arg *darg;
+struct psi_ffi_struct_element_storage {
+ ffi_type **els;
+ size_t nels;
+ size_t argc;
+ size_t offset;
+ size_t max_align;
+ size_t last_arg_pos;
+};
- argc = psi_plist_count(strct->args);
- els = calloc(argc + 1, sizeof(*els));
+static inline void psi_ffi_struct_type_element(
+ struct psi_ffi_struct_element_storage *s, struct psi_decl_arg *darg,
+ ffi_type *darg_type) {
- while (psi_plist_get(strct->args, i++, &darg)) {
- ffi_type *type;
- size_t padding;
+ ffi_type *type;
+ size_t padding;
- if (darg->layout->pos == last_arg_pos) {
- /* skip bit fields */
- continue;
- }
- last_arg_pos = darg->layout->pos;
+ if (darg->layout->pos == s->last_arg_pos) {
+ /* skip bit fields */
+ return;
+ }
+ s->last_arg_pos = darg->layout->pos;
- type = malloc(sizeof(*type));
- *type = *psi_ffi_decl_arg_type(darg);
+ type = pemalloc(sizeof(*type), 1);
+ *type = *darg_type;
- if (type->alignment > maxalign) {
- maxalign = type->alignment;
- }
+ if (type->alignment > s->max_align) {
+ s->max_align = type->alignment;
+ }
- assert(type->size == darg->layout->len);
- if ((padding = psi_offset_padding(darg->layout->pos - offset, type->alignment))) {
- if (nels + padding + 1 > argc) {
- argc += padding;
- tmp = realloc(els, (argc + 1) * sizeof(*els));
- if (tmp) {
- els = tmp;
- } else {
- free(els);
- return NULL;
- }
- els[argc] = NULL;
- }
- psi_ffi_struct_type_pad(&els[nels], padding);
- nels += padding;
- offset += padding;
+ assert(type->size <= darg->layout->len);
+ if ((padding = psi_offset_padding(darg->layout->pos - s->offset, type->alignment))) {
+ if (s->nels + padding + 1 > s->argc) {
+ s->argc += padding;
+ s->els = safe_perealloc(s->els, (s->argc + 1), sizeof(*s->els), 0, 1);
+ s->els[s->argc] = NULL;
}
- assert(offset == darg->layout->pos);
+ psi_ffi_struct_type_pad(&s->els[s->nels], padding);
+ s->nels += padding;
+ s->offset += padding;
+ }
+ assert(s->offset == darg->layout->pos);
- offset = (offset + darg->layout->len + type->alignment - 1) & ~(type->alignment - 1);
- els[nels++] = type;
+ s->offset = (s->offset + darg->layout->len + type->alignment - 1) & ~(type->alignment - 1);
+ s->els[s->nels++] = type;
+}
+
+static ffi_type **psi_ffi_struct_type_elements(struct psi_decl_struct *strct) {
+ size_t i = 0;
+ struct psi_decl_arg *darg;
+ struct psi_ffi_struct_element_storage s = {0};
+
+ s.last_arg_pos = -1;
+ s.argc = psi_plist_count(strct->args);
+ s.els = pecalloc(s.argc + 1, sizeof(*s.els), 1);
+
+ while (psi_plist_get(strct->args, i++, &darg)) {
+ psi_ffi_struct_type_element(&s, darg, psi_ffi_decl_arg_type(darg));
}
/* apply struct alignment padding */
- offset = (offset + maxalign - 1) & ~(maxalign - 1);
+ s.offset = (s.offset + s.max_align - 1) & ~(s.max_align - 1);
- assert(offset <= strct->size);
- if (offset < strct->size) {
- size_t padding = strct->size - offset;
+ assert(s.offset <= strct->size);
+ if (s.offset < strct->size) { /* WTF? */
+ size_t padding = strct->size - s.offset;
- tmp = realloc(els, (padding + argc + 1) * sizeof(*els));
- if (tmp) {
- els = tmp;
- } else {
- free(els);
- return NULL;
- }
- psi_ffi_struct_type_pad(&els[nels], padding);
- els[argc + padding] = NULL;
+ s.els = safe_perealloc(s.els, (padding + s.argc + 1), sizeof(*s.els), 0, 1);
+ psi_ffi_struct_type_pad(&s.els[s.nels], padding);
+ s.els[s.argc + padding] = NULL;
}
- return els;
+ return s.els;
}
+
static inline ffi_type *psi_ffi_decl_type(struct psi_decl_type *type) {
struct psi_decl_type *real = psi_decl_type_get_real(type);
+ if (real != type && type->real.def->var->pointer_level) {
+ return &ffi_type_pointer;
+ }
+
switch (real->type) {
case PSI_T_STRUCT:
if (!real->real.strct->engine.type) {
- ffi_type *strct = calloc(1, sizeof(ffi_type));
+ ffi_type *strct = pecalloc(1, sizeof(ffi_type), 1);
strct->type = FFI_TYPE_STRUCT;
strct->size = 0;
strct->elements = psi_ffi_struct_type_elements(real->real.strct);
real->real.strct->engine.type = strct;
- real->real.strct->engine.dtor = psi_ffi_struct_type_dtor;
+ real->real.strct->engine.dtor = psi_ffi_type_dtor;
}
return real->real.strct->engine.type;
}
default:
- return psi_ffi_token_type(real->type);
+ break;
+ }
+
+ return psi_ffi_token_type(real->type);
+}
+
+static inline ffi_type *psi_ffi_decl_func_array_type(struct psi_decl *fn) {
+ struct psi_ffi_decl_info *info = fn->info;
+ struct psi_ffi_struct_element_storage s = {0};
+ struct psi_layout l;
+ ffi_type *type;
+ size_t i;
+
+ if (info->rv_array) {
+ return info->rv_array;
}
+
+ s.last_arg_pos = -1;
+ s.argc = fn->func->var->array_size;
+ s.els = pecalloc(s.argc + 1, sizeof(*s.els), 1);
+
+ info->rv_array = pecalloc(1, sizeof(ffi_type), 1);
+ info->rv_array->type = FFI_TYPE_STRUCT;
+ info->rv_array->size = 0;
+ info->rv_array->elements = s.els;
+
+ l.pos = 0;
+ if (fn->func->var->pointer_level > 1) {
+ l.len = SIZEOF_VOID_P;
+ type = &ffi_type_pointer;
+ } else {
+ l.len = psi_decl_type_get_size(fn->func->type, NULL);
+ type = psi_ffi_decl_type(fn->func->type);
+ }
+
+ assert(!fn->func->layout);
+ fn->func->layout = &l;
+ for (i = 0; i < fn->func->var->array_size; ++i) {
+ psi_ffi_struct_type_element(&s, fn->func, type);
+ info->rv_array->elements = s.els;
+ l.pos += l.len;
+ }
+ fn->func->layout = NULL;
+
+ return info->rv_array;
}
+
static inline ffi_type *psi_ffi_decl_arg_type(struct psi_decl_arg *darg) {
if (darg->var->pointer_level) {
return &ffi_type_pointer;
}
}
-static inline ffi_abi psi_ffi_abi(const char *convention) {
+static inline ffi_type *psi_ffi_decl_func_type(struct psi_decl *fn) {
+ struct psi_decl_arg *darg = fn->func;
+
+ if (darg->var->pointer_level) {
+ if (darg->var->array_size) {
+ /* mimic a struct resembling the array return type of fn */
+ return psi_ffi_decl_func_array_type(fn);
+ }
+ return &ffi_type_pointer;
+ } else {
+ return psi_ffi_decl_type(darg->type);
+ }
+}
+
+static inline ffi_abi psi_ffi_abi(zend_string *convention) {
if (FFI_LAST_ABI - 2 != FFI_FIRST_ABI) {
#ifdef HAVE_FFI_STDCALL
- if (!strcasecmp(convention, "stdcall")) {
+ if (zend_string_equals_literal(convention, "stdcall")) {
return FFI_STDCALL;
}
#endif
#ifdef HAVE_FFI_FASTCALL
- if (!strcasecmp(convention, "fastcall")) {
+ if (zend_string_equals_literal(convention, "fastcall")) {
return FFI_FASTCALL;
}
#endif
return FFI_DEFAULT_ABI;
}
-struct psi_ffi_context {
- ffi_cif signature;
- ffi_type *params[2];
-};
-
-struct psi_ffi_impl_info {
- struct psi_context *context;
- struct psi_call_frame *frame;
-
- void *code;
- ffi_closure *closure;
-};
-
-struct psi_ffi_callback_info {
- struct psi_ffi_impl_info *impl_info;
- struct psi_let_exp *let_exp;
-
- void *code;
- ffi_closure *closure;
-};
-
-struct psi_ffi_decl_info {
- ffi_cif signature;
- ffi_type *params[1];
-};
-
static inline struct psi_ffi_decl_info *psi_ffi_decl_init(struct psi_decl *decl) {
if (!decl->info) {
int rc;
size_t i, c = psi_plist_count(decl->args);
struct psi_decl_arg *arg;
- struct psi_ffi_decl_info *info = calloc(1, sizeof(*info) + 2 * c * sizeof(void *));
+ struct psi_ffi_decl_info *info = pecalloc(1, sizeof(*info) + 2 * c * sizeof(void *), 1);
+
+ decl->info = info;
for (i = 0; psi_plist_get(decl->args, i, &arg); ++i) {
info->params[i] = psi_ffi_decl_arg_type(arg);
info->params[c] = NULL;
rc = ffi_prep_cif(&info->signature, psi_ffi_abi(decl->abi->convention),
- c, psi_ffi_decl_arg_type(decl->func), info->params);
+ c, psi_ffi_decl_func_type(decl), info->params);
if (FFI_OK != rc) {
free(info);
- } else {
- decl->info = info;
+ decl->info = NULL;
}
}
static inline void psi_ffi_decl_dtor(struct psi_decl *decl) {
if (decl->info) {
+ struct psi_ffi_decl_info *info = decl->info;
+
+ if (info->rv_array) {
+ psi_ffi_type_dtor(info->rv_array);
+ }
free(decl->info);
decl->info = NULL;
}
decl_info = psi_ffi_decl_init(cb->decl);
}
- cb_info = calloc(1, sizeof(*cb_info));
+ cb_info = pecalloc(1, sizeof(*cb_info), 1);
cb_info->impl_info = impl_info;
cb_info->let_exp = let_exp;
rc = psi_ffi_prep_closure(&cb_info->closure, &cb_info->code,
static inline struct psi_ffi_impl_info *psi_ffi_impl_init(struct psi_impl *impl,
struct psi_context *C) {
struct psi_ffi_context *context = C->context;
- struct psi_ffi_impl_info *info = calloc(1, sizeof(*info));
+ struct psi_ffi_impl_info *info = pecalloc(1, sizeof(*info), 1);
struct psi_let_stmt *let;
ffi_status rc;
size_t l = 0;
}
}
+static void psi_ffi_extvar_get(ffi_cif *sig, void *result, void **args, void *data) {
+ struct psi_decl_extvar *evar = data;
+
+ psi_decl_extvar_get(evar, result);
+}
+
+static void psi_ffi_extvar_set(ffi_cif *sig, void *result, void **args, void *data) {
+ struct psi_decl_extvar *evar = data;
+
+ psi_decl_extvar_set(evar, args[0]);
+}
+
+struct psi_ffi_extvar_info {
+ struct {
+ ffi_cif signature;
+ void *code;
+ ffi_closure *closure;
+ } get;
+ struct {
+ ffi_cif signature;
+ ffi_type *params[1];
+ void *code;
+ ffi_closure *closure;
+ } set;
+};
+
+static inline ffi_status psi_ffi_extvar_init(struct psi_decl_extvar *evar) {
+ struct psi_ffi_extvar_info *info = pecalloc(1, sizeof(*info), 1);
+ ffi_status rc;
+
+ evar->info = info;
+
+ psi_ffi_decl_init(evar->getter);
+ psi_ffi_decl_init(evar->setter);
+
+ rc = ffi_prep_cif(&info->get.signature, FFI_DEFAULT_ABI, 0,
+ psi_ffi_decl_func_type(evar->getter), NULL);
+ if (FFI_OK != rc) {
+ return rc;
+ }
+ rc = psi_ffi_prep_closure(&info->get.closure, &info->get.code,
+ &info->get.signature, psi_ffi_extvar_get, evar);
+ if (FFI_OK != rc) {
+ return rc;
+ }
+
+ info->set.params[0] = psi_ffi_decl_arg_type(evar->arg);
+ rc = ffi_prep_cif(&info->set.signature, FFI_DEFAULT_ABI, 1,
+ &ffi_type_void, info->set.params);
+ if (FFI_OK != rc) {
+ return rc;
+ }
+ rc = psi_ffi_prep_closure(&info->set.closure, &info->set.code,
+ &info->set.signature, psi_ffi_extvar_set, evar);
+ if (FFI_OK != rc) {
+ return rc;
+ }
+
+ evar->getter->sym = info->get.code;
+ evar->setter->sym = info->set.code;
+
+ return FFI_OK;
+}
+
+static inline void psi_ffi_extvar_dtor(struct psi_decl_extvar *evar) {
+ if (evar->info) {
+ free(evar->info);
+ evar->info = NULL;
+ }
+}
static inline struct psi_ffi_context *psi_ffi_context_init(struct psi_ffi_context *L) {
ffi_status rc;
if (!L) {
- L = malloc(sizeof(*L));
+ L = pemalloc(sizeof(*L), 1);
}
memset(L, 0, sizeof(*L));
}
}
+ if (C->vars) {
+ size_t i = 0;
+ struct psi_decl_extvar *evar;
+
+ while (psi_plist_get(C->vars, i++, &evar)) {
+ psi_ffi_extvar_dtor(evar);
+ }
+ }
if (C->impls) {
size_t i = 0;
struct psi_impl *impl;
static zend_function_entry *psi_ffi_compile(struct psi_context *C)
{
- size_t i = 0, d = 0, nf = 0;
+ size_t i = 0, d = 0, v = 0, nf = 0;
struct psi_impl *impl;
struct psi_decl *decl;
- zend_function_entry *zfe;
+ struct psi_decl_extvar *evar;
+ zend_function_entry *zfe = NULL;
- if (!C->impls) {
- return NULL;
+ while (psi_plist_get(C->vars, v++, &evar)) {
+ if (FFI_OK == psi_ffi_extvar_init(evar)) {
+ /* */
+ }
}
- zfe = calloc(psi_plist_count(C->impls) + 1, sizeof(*zfe));
+ if (C->impls) {
+ zfe = pecalloc(psi_plist_count(C->impls) + 1, sizeof(*zfe), 1);
- while (psi_plist_get(C->impls, i++, &impl)) {
- zend_function_entry *zf = &zfe[nf];
+ while (psi_plist_get(C->impls, i++, &impl)) {
+ zend_function_entry *zf = &zfe[nf];
- if (!impl->decl) {
- continue;
- }
- if (!psi_ffi_decl_init(impl->decl)) {
- continue;
- }
- if (!psi_ffi_impl_init(impl, C)) {
- continue;
- }
+ if (!impl->decl) {
+ continue;
+ }
+ if (!psi_ffi_decl_init(impl->decl)) {
+ continue;
+ }
+ if (!psi_ffi_impl_init(impl, C)) {
+ continue;
+ }
- zf->fname = impl->func->name + (impl->func->name[0] == '\\');
- zf->handler = ((struct psi_ffi_impl_info *) impl->info)->code;
- zf->num_args = psi_plist_count(impl->func->args);
- zf->arg_info = psi_internal_arginfo(impl);
- ++nf;
+ zf->fname = impl->func->name->val + (impl->func->name->val[0] == '\\');
+ zf->handler = ((struct psi_ffi_impl_info *) impl->info)->code;
+ zf->num_args = psi_plist_count(impl->func->args);
+ zf->arg_info = psi_internal_arginfo(impl);
+ ++nf;
+ }
}
while (psi_plist_get(C->decls, d++, &decl)) {
return NULL;
}
+static ZEND_RESULT_CODE psi_ffi_load()
+{
+#if HAVE_INT128
+ ffi_type *i128, *u128;
+
+ i128 = pecalloc(1, 3*sizeof(ffi_type), 1);
+ i128->type = FFI_TYPE_STRUCT;
+ i128->size = 0;
+ i128->elements = (ffi_type **) (i128 + 1);
+ i128->elements[0] = &ffi_type_sint64;
+ i128->elements[1] = &ffi_type_sint64;
+
+ ffi_type_sint128 = i128;
+
+ u128 = pecalloc(1, 3*sizeof(ffi_type), 1);
+ u128->type = FFI_TYPE_STRUCT;
+ u128->size = 0;
+ u128->elements = (ffi_type **) (u128 + 1);
+ u128->elements[0] = &ffi_type_uint64;
+ u128->elements[1] = &ffi_type_uint64;
+
+ ffi_type_uint128 = u128;
+#endif
+ return SUCCESS;
+}
+
+static void psi_ffi_free()
+{
+#if HAVE_INT128
+ free(ffi_type_sint128);
+ free(ffi_type_uint128);
+#endif
+}
+
static struct psi_context_ops ops = {
+ psi_ffi_load,
+ psi_ffi_free,
psi_ffi_init,
psi_ffi_dtor,
psi_ffi_compile,