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73809efb5d
wasm-micro-runtime/core/iwasm/common/wasm_c_api.c
Wenyong Huang a182926a73
Refactor interpreter/AOT module instance layout (#1559) 
Refactor the layout of interpreter and AOT module instance:
- Unify the interp/AOT module instance, use the same WASMModuleInstance/
  WASMMemoryInstance/WASMTableInstance data structures for both interpreter
  and AOT
- Make the offset of most fields the same in module instance for both interpreter
  and AOT, append memory instance structure, global data and table instances to
  the end of module instance for interpreter mode (like AOT mode)
- For extra fields in WASM module instance, use WASMModuleInstanceExtra to
  create a field `e` for interpreter
- Change the LLVM JIT module instance creating process, LLVM JIT uses the WASM
  module and module instance same as interpreter/Fast-JIT mode. So that Fast JIT
  and LLVM JIT can access the same data structures, and make it possible to
  implement the Multi-tier JIT (tier-up from Fast JIT to LLVM JIT) in the future
- Unify some APIs: merge some APIs for module instance and memory instance's
  related operations (only implement one copy)

Note that the AOT ABI is same, the AOT file format, AOT relocation types, how AOT
code accesses the AOT module instance and so on are kept unchanged.

Refer to:
https://github.com/bytecodealliance/wasm-micro-runtime/issues/1384
2022-10-18 10:59:28 +08:00

4679 lines
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/*
* Copyright (C) 2019 Intel Corporation. All rights reserved.
* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
*/
#include "wasm_c_api_internal.h"
#include "bh_assert.h"
#include "wasm_memory.h"
#if WASM_ENABLE_INTERP != 0
#include "wasm_runtime.h"
#endif
#if WASM_ENABLE_AOT != 0
#include "aot_runtime.h"
#if WASM_ENABLE_JIT != 0 && WASM_ENABLE_LAZY_JIT == 0
#include "aot.h"
#include "aot_llvm.h"
#endif /*WASM_ENABLE_JIT != 0 && WASM_ENABLE_LAZY_JIT == 0*/
#endif /*WASM_ENABLE_AOT != 0*/
#define ASSERT_NOT_IMPLEMENTED() bh_assert(!"not implemented")
#define UNREACHABLE() bh_assert(!"unreachable")
typedef struct wasm_module_ex_t wasm_module_ex_t;
static void
wasm_module_delete_internal(wasm_module_t *);
static void
wasm_instance_delete_internal(wasm_instance_t *);
/* temporarily put stubs here */
static wasm_store_t *
wasm_store_copy(const wasm_store_t *src)
{
(void)src;
LOG_WARNING("in the stub of %s", __FUNCTION__);
return NULL;
}
wasm_module_t *
wasm_module_copy(const wasm_module_t *src)
{
(void)src;
LOG_WARNING("in the stub of %s", __FUNCTION__);
return NULL;
}
wasm_instance_t *
wasm_instance_copy(const wasm_instance_t *src)
{
(void)src;
LOG_WARNING("in the stub of %s", __FUNCTION__);
return NULL;
}
/* ---------------------------------------------------------------------- */
static inline void *
malloc_internal(uint64 size)
{
void *mem = NULL;
if (size < UINT32_MAX && (mem = wasm_runtime_malloc((uint32)size))) {
memset(mem, 0, size);
}
return mem;
}
/* clang-format off */
#define RETURN_OBJ(obj, obj_del_func) \
return obj; \
failed: \
obj_del_func(obj); \
return NULL;
#define RETURN_VOID(obj, obj_del_func) \
return; \
failed: \
obj_del_func(obj); \
return;
/* clang-format on */
/* Vectors */
#define INIT_VEC(vector_p, init_func, ...) \
do { \
if (!(vector_p = malloc_internal(sizeof(*(vector_p))))) { \
goto failed; \
} \
\
init_func(vector_p, ##__VA_ARGS__); \
if (vector_p->size && !vector_p->data) { \
LOG_DEBUG("%s failed", #init_func); \
goto failed; \
} \
} while (false)
#define DEINIT_VEC(vector_p, deinit_func) \
if ((vector_p)) { \
deinit_func(vector_p); \
wasm_runtime_free(vector_p); \
vector_p = NULL; \
}
#define WASM_DEFINE_VEC(name) \
void wasm_##name##_vec_new_empty(own wasm_##name##_vec_t *out) \
{ \
wasm_##name##_vec_new_uninitialized(out, 0); \
} \
void wasm_##name##_vec_new_uninitialized(own wasm_##name##_vec_t *out, \
size_t size) \
{ \
wasm_##name##_vec_new(out, size, NULL); \
}
/* vectors with no ownership management of elements */
#define WASM_DEFINE_VEC_PLAIN(name) \
WASM_DEFINE_VEC(name) \
void wasm_##name##_vec_new(own wasm_##name##_vec_t *out, size_t size, \
own wasm_##name##_t const data[]) \
{ \
if (!out) { \
return; \
} \
\
memset(out, 0, sizeof(wasm_##name##_vec_t)); \
\
if (!size) { \
return; \
} \
\
if (!bh_vector_init((Vector *)out, size, sizeof(wasm_##name##_t), \
true)) { \
LOG_DEBUG("bh_vector_init failed"); \
goto failed; \
} \
\
if (data) { \
uint32 size_in_bytes = 0; \
size_in_bytes = (uint32)(size * sizeof(wasm_##name##_t)); \
bh_memcpy_s(out->data, size_in_bytes, data, size_in_bytes); \
out->num_elems = size; \
} \
\
RETURN_VOID(out, wasm_##name##_vec_delete) \
} \
void wasm_##name##_vec_copy(wasm_##name##_vec_t *out, \
const wasm_##name##_vec_t *src) \
{ \
if (!src) { \
return; \
} \
wasm_##name##_vec_new(out, src->size, src->data); \
} \
void wasm_##name##_vec_delete(wasm_##name##_vec_t *v) \
{ \
if (v) { \
bh_vector_destroy((Vector *)v); \
} \
}
/* vectors that own their elements */
#define WASM_DEFINE_VEC_OWN(name, elem_destroy_func) \
WASM_DEFINE_VEC(name) \
void wasm_##name##_vec_new(own wasm_##name##_vec_t *out, size_t size, \
own wasm_##name##_t *const data[]) \
{ \
if (!out) { \
return; \
} \
\
memset(out, 0, sizeof(wasm_##name##_vec_t)); \
\
if (!size) { \
return; \
} \
\
if (!bh_vector_init((Vector *)out, size, sizeof(wasm_##name##_t *), \
true)) { \
LOG_DEBUG("bh_vector_init failed"); \
goto failed; \
} \
\
if (data) { \
uint32 size_in_bytes = 0; \
size_in_bytes = (uint32)(size * sizeof(wasm_##name##_t *)); \
bh_memcpy_s(out->data, size_in_bytes, data, size_in_bytes); \
out->num_elems = size; \
} \
\
RETURN_VOID(out, wasm_##name##_vec_delete) \
} \
void wasm_##name##_vec_copy(own wasm_##name##_vec_t *out, \
const wasm_##name##_vec_t *src) \
{ \
size_t i = 0; \
\
if (!out) { \
return; \
} \
memset(out, 0, sizeof(Vector)); \
\
if (!src || !src->size) { \
return; \
} \
\
if (!bh_vector_init((Vector *)out, src->size, \
sizeof(wasm_##name##_t *), true)) { \
LOG_DEBUG("bh_vector_init failed"); \
goto failed; \
} \
\
for (i = 0; i != src->num_elems; ++i) { \
if (!(out->data[i] = wasm_##name##_copy(src->data[i]))) { \
LOG_DEBUG("wasm_%s_copy failed", #name); \
goto failed; \
} \
} \
out->num_elems = src->num_elems; \
\
RETURN_VOID(out, wasm_##name##_vec_delete) \
} \
void wasm_##name##_vec_delete(wasm_##name##_vec_t *v) \
{ \
size_t i = 0; \
if (!v) { \
return; \
} \
for (i = 0; i != v->num_elems && v->data; ++i) { \
elem_destroy_func(*(v->data + i)); \
} \
bh_vector_destroy((Vector *)v); \
}
WASM_DEFINE_VEC_PLAIN(byte)
WASM_DEFINE_VEC_PLAIN(val)
WASM_DEFINE_VEC_OWN(exporttype, wasm_exporttype_delete)
WASM_DEFINE_VEC_OWN(extern, wasm_extern_delete)
WASM_DEFINE_VEC_OWN(frame, wasm_frame_delete)
WASM_DEFINE_VEC_OWN(functype, wasm_functype_delete)
WASM_DEFINE_VEC_OWN(importtype, wasm_importtype_delete)
WASM_DEFINE_VEC_OWN(instance, wasm_instance_delete_internal)
WASM_DEFINE_VEC_OWN(module, wasm_module_delete_internal)
WASM_DEFINE_VEC_OWN(store, wasm_store_delete)
WASM_DEFINE_VEC_OWN(valtype, wasm_valtype_delete)
/* Runtime Environment */
own wasm_config_t *
wasm_config_new(void)
{
return NULL;
}
void
wasm_config_delete(own wasm_config_t *config)
{
(void)config;
}
static void
wasm_engine_delete_internal(wasm_engine_t *engine)
{
if (engine) {
DEINIT_VEC(engine->stores, wasm_store_vec_delete);
wasm_runtime_free(engine);
}
wasm_runtime_destroy();
}
static wasm_engine_t *
wasm_engine_new_internal(mem_alloc_type_t type, const MemAllocOption *opts)
{
wasm_engine_t *engine = NULL;
/* init runtime */
RuntimeInitArgs init_args = { 0 };
init_args.mem_alloc_type = type;
if (type == Alloc_With_Pool) {
if (!opts) {
return NULL;
}
init_args.mem_alloc_option.pool.heap_buf = opts->pool.heap_buf;
init_args.mem_alloc_option.pool.heap_size = opts->pool.heap_size;
}
else if (type == Alloc_With_Allocator) {
if (!opts) {
return NULL;
}
init_args.mem_alloc_option.allocator.malloc_func =
opts->allocator.malloc_func;
init_args.mem_alloc_option.allocator.free_func =
opts->allocator.free_func;
init_args.mem_alloc_option.allocator.realloc_func =
opts->allocator.realloc_func;
}
else {
init_args.mem_alloc_option.pool.heap_buf = NULL;
init_args.mem_alloc_option.pool.heap_size = 0;
}
if (!wasm_runtime_full_init(&init_args)) {
LOG_DEBUG("wasm_runtime_full_init failed");
goto failed;
}
#ifndef NDEBUG
/*DEBUG*/
bh_log_set_verbose_level(5);
#else
/*VERBOSE*/
bh_log_set_verbose_level(3);
#endif
/* create wasm_engine_t */
if (!(engine = malloc_internal(sizeof(wasm_engine_t)))) {
goto failed;
}
/* create wasm_store_vec_t */
INIT_VEC(engine->stores, wasm_store_vec_new_uninitialized, 1);
RETURN_OBJ(engine, wasm_engine_delete_internal)
}
/* global engine instance */
static wasm_engine_t *singleton_engine = NULL;
own wasm_engine_t *
wasm_engine_new()
{
if (!singleton_engine) {
singleton_engine =
wasm_engine_new_internal(Alloc_With_System_Allocator, NULL);
}
if (singleton_engine)
singleton_engine->ref_count++;
return singleton_engine;
}
own wasm_engine_t *
wasm_engine_new_with_config(own wasm_config_t *config)
{
(void)config;
return wasm_engine_new();
}
own wasm_engine_t *
wasm_engine_new_with_args(mem_alloc_type_t type, const MemAllocOption *opts)
{
if (!singleton_engine) {
singleton_engine = wasm_engine_new_internal(type, opts);
}
if (singleton_engine)
singleton_engine->ref_count++;
return singleton_engine;
}
/* BE AWARE: will RESET the singleton */
void
wasm_engine_delete(wasm_engine_t *engine)
{
if (engine && (--engine->ref_count == 0)) {
wasm_engine_delete_internal(engine);
singleton_engine = NULL;
}
}
wasm_store_t *
wasm_store_new(wasm_engine_t *engine)
{
wasm_store_t *store = NULL;
if (!engine || singleton_engine != engine) {
return NULL;
}
if (!wasm_runtime_init_thread_env()) {
LOG_ERROR("init thread environment failed");
return NULL;
}
if (!(store = malloc_internal(sizeof(wasm_store_t)))) {
wasm_runtime_destroy_thread_env();
return NULL;
}
/* new a vector, and new its data */
INIT_VEC(store->modules, wasm_module_vec_new_uninitialized,
DEFAULT_VECTOR_INIT_LENGTH);
INIT_VEC(store->instances, wasm_instance_vec_new_uninitialized,
DEFAULT_VECTOR_INIT_LENGTH);
if (!(store->foreigns = malloc_internal(sizeof(Vector)))
|| !(bh_vector_init(store->foreigns, 24, sizeof(wasm_foreign_t *),
true))) {
goto failed;
}
/* append to a store list of engine */
if (!bh_vector_append((Vector *)singleton_engine->stores, &store)) {
LOG_DEBUG("bh_vector_append failed");
goto failed;
}
return store;
failed:
wasm_store_delete(store);
return NULL;
}
void
wasm_store_delete(wasm_store_t *store)
{
size_t i, store_count;
if (!store) {
return;
}
/* remove it from the list in the engine */
store_count = bh_vector_size((Vector *)singleton_engine->stores);
for (i = 0; i != store_count; ++i) {
wasm_store_t *tmp;
if (!bh_vector_get((Vector *)singleton_engine->stores, (uint32)i,
&tmp)) {
break;
}
if (tmp == store) {
bh_vector_remove((Vector *)singleton_engine->stores, (uint32)i,
NULL);
break;
}
}
DEINIT_VEC(store->modules, wasm_module_vec_delete);
DEINIT_VEC(store->instances, wasm_instance_vec_delete);
if (store->foreigns) {
bh_vector_destroy(store->foreigns);
wasm_runtime_free(store->foreigns);
}
wasm_runtime_free(store);
wasm_runtime_destroy_thread_env();
}
/* Type Representations */
static inline wasm_valkind_t
val_type_rt_2_valkind(uint8 val_type_rt)
{
switch (val_type_rt) {
#define WAMR_VAL_TYPE_2_WASM_VAL_KIND(name) \
case VALUE_TYPE_##name: \
return WASM_##name;
WAMR_VAL_TYPE_2_WASM_VAL_KIND(I32)
WAMR_VAL_TYPE_2_WASM_VAL_KIND(I64)
WAMR_VAL_TYPE_2_WASM_VAL_KIND(F32)
WAMR_VAL_TYPE_2_WASM_VAL_KIND(F64)
WAMR_VAL_TYPE_2_WASM_VAL_KIND(FUNCREF)
#undef WAMR_VAL_TYPE_2_WASM_VAL_KIND
default:
return WASM_ANYREF;
}
}
static wasm_valtype_t *
wasm_valtype_new_internal(uint8 val_type_rt)
{
return wasm_valtype_new(val_type_rt_2_valkind(val_type_rt));
}
wasm_valtype_t *
wasm_valtype_new(wasm_valkind_t kind)
{
wasm_valtype_t *val_type;
if (kind > WASM_F64 && WASM_FUNCREF != kind
#if WASM_ENABLE_REF_TYPES != 0
&& WASM_ANYREF != kind
#endif
) {
return NULL;
}
if (!(val_type = malloc_internal(sizeof(wasm_valtype_t)))) {
return NULL;
}
val_type->kind = kind;
return val_type;
}
void
wasm_valtype_delete(wasm_valtype_t *val_type)
{
if (val_type) {
wasm_runtime_free(val_type);
}
}
wasm_valtype_t *
wasm_valtype_copy(const wasm_valtype_t *src)
{
return src ? wasm_valtype_new(src->kind) : NULL;
}
wasm_valkind_t
wasm_valtype_kind(const wasm_valtype_t *val_type)
{
return val_type ? val_type->kind : WASM_ANYREF;
}
static wasm_functype_t *
wasm_functype_new_internal(WASMType *type_rt)
{
wasm_functype_t *type = NULL;
wasm_valtype_t *param_type = NULL, *result_type = NULL;
uint32 i = 0;
if (!type_rt) {
return NULL;
}
if (!(type = malloc_internal(sizeof(wasm_functype_t)))) {
return NULL;
}
type->extern_kind = WASM_EXTERN_FUNC;
/* WASMType->types[0 : type_rt->param_count) -> type->params */
INIT_VEC(type->params, wasm_valtype_vec_new_uninitialized,
type_rt->param_count);
for (i = 0; i < type_rt->param_count; ++i) {
if (!(param_type = wasm_valtype_new_internal(*(type_rt->types + i)))) {
goto failed;
}
if (!bh_vector_append((Vector *)type->params, &param_type)) {
LOG_DEBUG("bh_vector_append failed");
goto failed;
}
}
/* WASMType->types[type_rt->param_count : type_rt->result_count) ->
* type->results */
INIT_VEC(type->results, wasm_valtype_vec_new_uninitialized,
type_rt->result_count);
for (i = 0; i < type_rt->result_count; ++i) {
if (!(result_type = wasm_valtype_new_internal(
*(type_rt->types + type_rt->param_count + i)))) {
goto failed;
}
if (!bh_vector_append((Vector *)type->results, &result_type)) {
LOG_DEBUG("bh_vector_append failed");
goto failed;
}
}
return type;
failed:
wasm_valtype_delete(param_type);
wasm_valtype_delete(result_type);
wasm_functype_delete(type);
return NULL;
}
wasm_functype_t *
wasm_functype_new(own wasm_valtype_vec_t *params,
own wasm_valtype_vec_t *results)
{
wasm_functype_t *type = NULL;
if (!(type = malloc_internal(sizeof(wasm_functype_t)))) {
goto failed;
}
type->extern_kind = WASM_EXTERN_FUNC;
/* take ownership */
if (!(type->params = malloc_internal(sizeof(wasm_valtype_vec_t)))) {
goto failed;
}
if (params) {
bh_memcpy_s(type->params, sizeof(wasm_valtype_vec_t), params,
sizeof(wasm_valtype_vec_t));
}
if (!(type->results = malloc_internal(sizeof(wasm_valtype_vec_t)))) {
goto failed;
}
if (results) {
bh_memcpy_s(type->results, sizeof(wasm_valtype_vec_t), results,
sizeof(wasm_valtype_vec_t));
}
return type;
failed:
wasm_functype_delete(type);
return NULL;
}
wasm_functype_t *
wasm_functype_copy(const wasm_functype_t *src)
{
wasm_functype_t *functype;
wasm_valtype_vec_t params = { 0 }, results = { 0 };
if (!src) {
return NULL;
}
wasm_valtype_vec_copy(&params, src->params);
if (src->params->size && !params.data) {
goto failed;
}
wasm_valtype_vec_copy(&results, src->results);
if (src->results->size && !results.data) {
goto failed;
}
if (!(functype = wasm_functype_new(&params, &results))) {
goto failed;
}
return functype;
failed:
wasm_valtype_vec_delete(&params);
wasm_valtype_vec_delete(&results);
return NULL;
}
void
wasm_functype_delete(wasm_functype_t *func_type)
{
if (!func_type) {
return;
}
DEINIT_VEC(func_type->params, wasm_valtype_vec_delete);
DEINIT_VEC(func_type->results, wasm_valtype_vec_delete);
wasm_runtime_free(func_type);
}
const wasm_valtype_vec_t *
wasm_functype_params(const wasm_functype_t *func_type)
{
if (!func_type) {
return NULL;
}
return func_type->params;
}
const wasm_valtype_vec_t *
wasm_functype_results(const wasm_functype_t *func_type)
{
if (!func_type) {
return NULL;
}
return func_type->results;
}
static bool
cmp_val_kind_with_val_type(wasm_valkind_t v_k, uint8 v_t)
{
return (v_k == WASM_I32 && v_t == VALUE_TYPE_I32)
|| (v_k == WASM_I64 && v_t == VALUE_TYPE_I64)
|| (v_k == WASM_F32 && v_t == VALUE_TYPE_F32)
|| (v_k == WASM_F64 && v_t == VALUE_TYPE_F64)
|| (v_k == WASM_ANYREF && v_t == VALUE_TYPE_EXTERNREF)
|| (v_k == WASM_FUNCREF && v_t == VALUE_TYPE_FUNCREF);
}
/*
*to compare a function type of wasm-c-api with a function type of wasm_runtime
*/
static bool
wasm_functype_same_internal(const wasm_functype_t *type,
const WASMType *type_intl)
{
uint32 i = 0;
if (!type || !type_intl || type->params->num_elems != type_intl->param_count
|| type->results->num_elems != type_intl->result_count)
return false;
for (i = 0; i < type->params->num_elems; i++) {
wasm_valtype_t *v_t = type->params->data[i];
if (!cmp_val_kind_with_val_type(wasm_valtype_kind(v_t),
type_intl->types[i]))
return false;
}
for (i = 0; i < type->results->num_elems; i++) {
wasm_valtype_t *v_t = type->results->data[i];
if (!cmp_val_kind_with_val_type(
wasm_valtype_kind(v_t),
type_intl->types[i + type->params->num_elems]))
return false;
}
return true;
}
wasm_globaltype_t *
wasm_globaltype_new(own wasm_valtype_t *val_type, wasm_mutability_t mut)
{
wasm_globaltype_t *global_type = NULL;
if (!val_type) {
return NULL;
}
if (!(global_type = malloc_internal(sizeof(wasm_globaltype_t)))) {
return NULL;
}
global_type->extern_kind = WASM_EXTERN_GLOBAL;
global_type->val_type = val_type;
global_type->mutability = mut;
return global_type;
}
wasm_globaltype_t *
wasm_globaltype_new_internal(uint8 val_type_rt, bool is_mutable)
{
wasm_globaltype_t *globaltype;
wasm_valtype_t *val_type;
if (!(val_type = wasm_valtype_new(val_type_rt_2_valkind(val_type_rt)))) {
return NULL;
}
if (!(globaltype = wasm_globaltype_new(
val_type, is_mutable ? WASM_VAR : WASM_CONST))) {
wasm_valtype_delete(val_type);
}
return globaltype;
}
void
wasm_globaltype_delete(wasm_globaltype_t *global_type)
{
if (!global_type) {
return;
}
if (global_type->val_type) {
wasm_valtype_delete(global_type->val_type);
global_type->val_type = NULL;
}
wasm_runtime_free(global_type);
}
wasm_globaltype_t *
wasm_globaltype_copy(const wasm_globaltype_t *src)
{
wasm_globaltype_t *global_type;
wasm_valtype_t *val_type;
if (!src) {
return NULL;
}
if (!(val_type = wasm_valtype_copy(src->val_type))) {
return NULL;
}
if (!(global_type = wasm_globaltype_new(val_type, src->mutability))) {
wasm_valtype_delete(val_type);
}
return global_type;
}
const wasm_valtype_t *
wasm_globaltype_content(const wasm_globaltype_t *global_type)
{
if (!global_type) {
return NULL;
}
return global_type->val_type;
}
wasm_mutability_t
wasm_globaltype_mutability(const wasm_globaltype_t *global_type)
{
if (!global_type) {
return false;
}
return global_type->mutability;
}
static wasm_tabletype_t *
wasm_tabletype_new_internal(uint8 val_type_rt, uint32 init_size,
uint32 max_size)
{
wasm_tabletype_t *table_type;
wasm_limits_t limits = { init_size, max_size };
wasm_valtype_t *val_type;
if (!(val_type = wasm_valtype_new_internal(val_type_rt))) {
return NULL;
}
if (!(table_type = wasm_tabletype_new(val_type, &limits))) {
wasm_valtype_delete(val_type);
}
return table_type;
}
wasm_tabletype_t *
wasm_tabletype_new(own wasm_valtype_t *val_type, const wasm_limits_t *limits)
{
wasm_tabletype_t *table_type = NULL;
if (!val_type || !limits) {
return NULL;
}
if (wasm_valtype_kind(val_type) != WASM_FUNCREF
#if WASM_ENABLE_REF_TYPES != 0
&& wasm_valtype_kind(val_type) != WASM_ANYREF
#endif
) {
return NULL;
}
if (!(table_type = malloc_internal(sizeof(wasm_tabletype_t)))) {
return NULL;
}
table_type->extern_kind = WASM_EXTERN_TABLE;
table_type->val_type = val_type;
table_type->limits.min = limits->min;
table_type->limits.max = limits->max;
return table_type;
}
wasm_tabletype_t *
wasm_tabletype_copy(const wasm_tabletype_t *src)
{
wasm_tabletype_t *table_type;
wasm_valtype_t *val_type;
if (!src) {
return NULL;
}
if (!(val_type = wasm_valtype_copy(src->val_type))) {
return NULL;
}
if (!(table_type = wasm_tabletype_new(val_type, &src->limits))) {
wasm_valtype_delete(val_type);
}
return table_type;
}
void
wasm_tabletype_delete(wasm_tabletype_t *table_type)
{
if (!table_type) {
return;
}
if (table_type->val_type) {
wasm_valtype_delete(table_type->val_type);
table_type->val_type = NULL;
}
wasm_runtime_free(table_type);
}
const wasm_valtype_t *
wasm_tabletype_element(const wasm_tabletype_t *table_type)
{
if (!table_type) {
return NULL;
}
return table_type->val_type;
}
const wasm_limits_t *
wasm_tabletype_limits(const wasm_tabletype_t *table_type)
{
if (!table_type) {
return NULL;
}
return &(table_type->limits);
}
static wasm_memorytype_t *
wasm_memorytype_new_internal(uint32 min_pages, uint32 max_pages)
{
wasm_limits_t limits = { min_pages, max_pages };
return wasm_memorytype_new(&limits);
}
wasm_memorytype_t *
wasm_memorytype_new(const wasm_limits_t *limits)
{
wasm_memorytype_t *memory_type = NULL;
if (!limits) {
return NULL;
}
if (!(memory_type = malloc_internal(sizeof(wasm_memorytype_t)))) {
return NULL;
}
memory_type->extern_kind = WASM_EXTERN_MEMORY;
memory_type->limits.min = limits->min;
memory_type->limits.max = limits->max;
return memory_type;
}
wasm_memorytype_t *
wasm_memorytype_copy(const wasm_memorytype_t *src)
{
if (!src) {
return NULL;
}
return wasm_memorytype_new(&src->limits);
}
void
wasm_memorytype_delete(wasm_memorytype_t *memory_type)
{
if (memory_type) {
wasm_runtime_free(memory_type);
}
}
const wasm_limits_t *
wasm_memorytype_limits(const wasm_memorytype_t *memory_type)
{
if (!memory_type) {
return NULL;
}
return &(memory_type->limits);
}
wasm_externkind_t
wasm_externtype_kind(const wasm_externtype_t *extern_type)
{
if (!extern_type) {
return WASM_EXTERN_FUNC;
}
return extern_type->extern_kind;
}
#define BASIC_FOUR_TYPE_LIST(V) \
V(functype) \
V(globaltype) \
V(memorytype) \
V(tabletype)
#define WASM_EXTERNTYPE_AS_OTHERTYPE(name) \
wasm_##name##_t *wasm_externtype_as_##name(wasm_externtype_t *extern_type) \
{ \
return (wasm_##name##_t *)extern_type; \
}
BASIC_FOUR_TYPE_LIST(WASM_EXTERNTYPE_AS_OTHERTYPE)
#undef WASM_EXTERNTYPE_AS_OTHERTYPE
#define WASM_OTHERTYPE_AS_EXTERNTYPE(name) \
wasm_externtype_t *wasm_##name##_as_externtype(wasm_##name##_t *other) \
{ \
return (wasm_externtype_t *)other; \
}
BASIC_FOUR_TYPE_LIST(WASM_OTHERTYPE_AS_EXTERNTYPE)
#undef WASM_OTHERTYPE_AS_EXTERNTYPE
#define WASM_EXTERNTYPE_AS_OTHERTYPE_CONST(name) \
const wasm_##name##_t *wasm_externtype_as_##name##_const( \
const wasm_externtype_t *extern_type) \
{ \
return (const wasm_##name##_t *)extern_type; \
}
BASIC_FOUR_TYPE_LIST(WASM_EXTERNTYPE_AS_OTHERTYPE_CONST)
#undef WASM_EXTERNTYPE_AS_OTHERTYPE_CONST
#define WASM_OTHERTYPE_AS_EXTERNTYPE_CONST(name) \
const wasm_externtype_t *wasm_##name##_as_externtype_const( \
const wasm_##name##_t *other) \
{ \
return (const wasm_externtype_t *)other; \
}
BASIC_FOUR_TYPE_LIST(WASM_OTHERTYPE_AS_EXTERNTYPE_CONST)
#undef WASM_OTHERTYPE_AS_EXTERNTYPE_CONST
wasm_externtype_t *
wasm_externtype_copy(const wasm_externtype_t *src)
{
wasm_externtype_t *extern_type = NULL;
if (!src) {
return NULL;
}
switch (src->extern_kind) {
#define COPY_EXTERNTYPE(NAME, name) \
case WASM_EXTERN_##NAME: \
{ \
extern_type = wasm_##name##_as_externtype( \
wasm_##name##_copy(wasm_externtype_as_##name##_const(src))); \
break; \
}
COPY_EXTERNTYPE(FUNC, functype)
COPY_EXTERNTYPE(GLOBAL, globaltype)
COPY_EXTERNTYPE(MEMORY, memorytype)
COPY_EXTERNTYPE(TABLE, tabletype)
#undef COPY_EXTERNTYPE
default:
LOG_WARNING("%s meets unsupported kind %u", __FUNCTION__,
src->extern_kind);
break;
}
return extern_type;
}
void
wasm_externtype_delete(wasm_externtype_t *extern_type)
{
if (!extern_type) {
return;
}
switch (wasm_externtype_kind(extern_type)) {
case WASM_EXTERN_FUNC:
wasm_functype_delete(wasm_externtype_as_functype(extern_type));
break;
case WASM_EXTERN_GLOBAL:
wasm_globaltype_delete(wasm_externtype_as_globaltype(extern_type));
break;
case WASM_EXTERN_MEMORY:
wasm_memorytype_delete(wasm_externtype_as_memorytype(extern_type));
break;
case WASM_EXTERN_TABLE:
wasm_tabletype_delete(wasm_externtype_as_tabletype(extern_type));
break;
default:
LOG_WARNING("%s meets unsupported type %u", __FUNCTION__,
wasm_externtype_kind(extern_type));
break;
}
}
own wasm_importtype_t *
wasm_importtype_new(own wasm_byte_vec_t *module_name,
own wasm_byte_vec_t *field_name,
own wasm_externtype_t *extern_type)
{
wasm_importtype_t *import_type = NULL;
if (!module_name || !field_name || !extern_type) {
return NULL;
}
if (!(import_type = malloc_internal(sizeof(wasm_importtype_t)))) {
return NULL;
}
/* take ownership */
if (!(import_type->module_name =
malloc_internal(sizeof(wasm_byte_vec_t)))) {
goto failed;
}
bh_memcpy_s(import_type->module_name, sizeof(wasm_byte_vec_t), module_name,
sizeof(wasm_byte_vec_t));
if (!(import_type->name = malloc_internal(sizeof(wasm_byte_vec_t)))) {
goto failed;
}
bh_memcpy_s(import_type->name, sizeof(wasm_byte_vec_t), field_name,
sizeof(wasm_byte_vec_t));
import_type->extern_type = extern_type;
return import_type;
failed:
wasm_importtype_delete(import_type);
return NULL;
}
void
wasm_importtype_delete(own wasm_importtype_t *import_type)
{
if (!import_type) {
return;
}
DEINIT_VEC(import_type->module_name, wasm_byte_vec_delete);
DEINIT_VEC(import_type->name, wasm_byte_vec_delete);
wasm_externtype_delete(import_type->extern_type);
import_type->extern_type = NULL;
wasm_runtime_free(import_type);
}
own wasm_importtype_t *
wasm_importtype_copy(const wasm_importtype_t *src)
{
wasm_byte_vec_t module_name = { 0 }, name = { 0 };
wasm_externtype_t *extern_type = NULL;
wasm_importtype_t *import_type = NULL;
if (!src) {
return NULL;
}
wasm_byte_vec_copy(&module_name, src->module_name);
if (src->module_name->size && !module_name.data) {
goto failed;
}
wasm_byte_vec_copy(&name, src->name);
if (src->name->size && !name.data) {
goto failed;
}
if (!(extern_type = wasm_externtype_copy(src->extern_type))) {
goto failed;
}
if (!(import_type =
wasm_importtype_new(&module_name, &name, extern_type))) {
goto failed;
}
return import_type;
failed:
wasm_byte_vec_delete(&module_name);
wasm_byte_vec_delete(&name);
wasm_externtype_delete(extern_type);
wasm_importtype_delete(import_type);
return NULL;
}
const wasm_byte_vec_t *
wasm_importtype_module(const wasm_importtype_t *import_type)
{
if (!import_type) {
return NULL;
}
return import_type->module_name;
}
const wasm_byte_vec_t *
wasm_importtype_name(const wasm_importtype_t *import_type)
{
if (!import_type) {
return NULL;
}
return import_type->name;
}
const wasm_externtype_t *
wasm_importtype_type(const wasm_importtype_t *import_type)
{
if (!import_type) {
return NULL;
}
return import_type->extern_type;
}
own wasm_exporttype_t *
wasm_exporttype_new(own wasm_byte_vec_t *name,
own wasm_externtype_t *extern_type)
{
wasm_exporttype_t *export_type = NULL;
if (!name || !extern_type) {
return NULL;
}
if (!(export_type = malloc_internal(sizeof(wasm_exporttype_t)))) {
return NULL;
}
if (!(export_type->name = malloc_internal(sizeof(wasm_byte_vec_t)))) {
wasm_exporttype_delete(export_type);
return NULL;
}
bh_memcpy_s(export_type->name, sizeof(wasm_byte_vec_t), name,
sizeof(wasm_byte_vec_t));
export_type->extern_type = extern_type;
return export_type;
}
wasm_exporttype_t *
wasm_exporttype_copy(const wasm_exporttype_t *src)
{
wasm_exporttype_t *export_type;
wasm_byte_vec_t name = { 0 };
wasm_externtype_t *extern_type = NULL;
if (!src) {
return NULL;
}
wasm_byte_vec_copy(&name, src->name);
if (src->name->size && !name.data) {
goto failed;
}
if (!(extern_type = wasm_externtype_copy(src->extern_type))) {
goto failed;
}
if (!(export_type = wasm_exporttype_new(&name, extern_type))) {
goto failed;
}
return export_type;
failed:
wasm_byte_vec_delete(&name);
wasm_externtype_delete(extern_type);
return NULL;
}
void
wasm_exporttype_delete(wasm_exporttype_t *export_type)
{
if (!export_type) {
return;
}
DEINIT_VEC(export_type->name, wasm_byte_vec_delete);
wasm_externtype_delete(export_type->extern_type);
wasm_runtime_free(export_type);
}
const wasm_byte_vec_t *
wasm_exporttype_name(const wasm_exporttype_t *export_type)
{
if (!export_type) {
return NULL;
}
return export_type->name;
}
const wasm_externtype_t *
wasm_exporttype_type(const wasm_exporttype_t *export_type)
{
if (!export_type) {
return NULL;
}
return export_type->extern_type;
}
/* Runtime Objects */
void
wasm_val_delete(wasm_val_t *v)
{
if (v)
wasm_runtime_free(v);
}
void
wasm_val_copy(wasm_val_t *out, const wasm_val_t *src)
{
if (!out || !src) {
return;
}
bh_memcpy_s(out, sizeof(wasm_val_t), src, sizeof(wasm_val_t));
}
bool
rt_val_to_wasm_val(const uint8 *data, uint8 val_type_rt, wasm_val_t *out)
{
bool ret = true;
switch (val_type_rt) {
case VALUE_TYPE_I32:
out->kind = WASM_I32;
out->of.i32 = *((int32 *)data);
break;
case VALUE_TYPE_F32:
out->kind = WASM_F32;
out->of.f32 = *((float32 *)data);
break;
case VALUE_TYPE_I64:
out->kind = WASM_I64;
out->of.i64 = *((int64 *)data);
break;
case VALUE_TYPE_F64:
out->kind = WASM_F64;
out->of.f64 = *((float64 *)data);
break;
#if WASM_ENABLE_REF_TYPES != 0
case VALUE_TYPE_EXTERNREF:
out->kind = WASM_ANYREF;
if (NULL_REF == *(uint32 *)data) {
out->of.ref = NULL;
}
else {
ret = wasm_externref_ref2obj(*(uint32 *)data,
(void **)&out->of.ref);
}
break;
#endif
default:
LOG_WARNING("unexpected value type %d", val_type_rt);
ret = false;
}
return ret;
}
bool
wasm_val_to_rt_val(WASMModuleInstanceCommon *inst_comm_rt, uint8 val_type_rt,
const wasm_val_t *v, uint8 *data)
{
bool ret = true;
switch (val_type_rt) {
case VALUE_TYPE_I32:
bh_assert(WASM_I32 == v->kind);
*((int32 *)data) = v->of.i32;
break;
case VALUE_TYPE_F32:
bh_assert(WASM_F32 == v->kind);
*((float32 *)data) = v->of.f32;
break;
case VALUE_TYPE_I64:
bh_assert(WASM_I64 == v->kind);
*((int64 *)data) = v->of.i64;
break;
case VALUE_TYPE_F64:
bh_assert(WASM_F64 == v->kind);
*((float64 *)data) = v->of.f64;
break;
#if WASM_ENABLE_REF_TYPES != 0
case VALUE_TYPE_EXTERNREF:
bh_assert(WASM_ANYREF == v->kind);
ret =
wasm_externref_obj2ref(inst_comm_rt, v->of.ref, (uint32 *)data);
break;
#endif
default:
LOG_WARNING("unexpected value type %d", val_type_rt);
ret = false;
break;
}
return ret;
}
wasm_ref_t *
wasm_ref_new_internal(wasm_store_t *store, enum wasm_reference_kind kind,
uint32 ref_idx_rt, WASMModuleInstanceCommon *inst_comm_rt)
{
wasm_ref_t *ref;
if (!store) {
return NULL;
}
if (!(ref = malloc_internal(sizeof(wasm_ref_t)))) {
return NULL;
}
ref->store = store;
ref->kind = kind;
ref->ref_idx_rt = ref_idx_rt;
ref->inst_comm_rt = inst_comm_rt;
/* workaround */
if (WASM_REF_foreign == kind) {
wasm_foreign_t *foreign;
if (!(bh_vector_get(ref->store->foreigns, ref->ref_idx_rt, &foreign))
|| !foreign) {
wasm_runtime_free(ref);
return NULL;
}
foreign->ref_cnt++;
}
/* others doesn't include ref counters */
return ref;
}
own wasm_ref_t *
wasm_ref_copy(const wasm_ref_t *src)
{
if (!src)
return NULL;
/* host_info are different in wasm_ref_t(s) */
return wasm_ref_new_internal(src->store, src->kind, src->ref_idx_rt,
src->inst_comm_rt);
}
#define DELETE_HOST_INFO(obj) \
if (obj->host_info.info) { \
if (obj->host_info.finalizer) { \
obj->host_info.finalizer(obj->host_info.info); \
} \
}
void
wasm_ref_delete(own wasm_ref_t *ref)
{
if (!ref || !ref->store)
return;
DELETE_HOST_INFO(ref);
if (WASM_REF_foreign == ref->kind) {
wasm_foreign_t *foreign = NULL;
if (bh_vector_get(ref->store->foreigns, ref->ref_idx_rt, &foreign)
&& foreign) {
wasm_foreign_delete(foreign);
}
}
wasm_runtime_free(ref);
}
#define WASM_DEFINE_REF_BASE(name) \
bool wasm_##name##_same(const wasm_##name##_t *o1, \
const wasm_##name##_t *o2) \
{ \
return (!o1 && !o2) ? true \
: (!o1 || !o2) ? false \
: (o1->kind != o2->kind) \
? false \
: o1->name##_idx_rt == o2->name##_idx_rt; \
} \
\
void *wasm_##name##_get_host_info(const wasm_##name##_t *obj) \
{ \
return obj ? obj->host_info.info : NULL; \
} \
\
void wasm_##name##_set_host_info(wasm_##name##_t *obj, void *host_info) \
{ \
if (obj) { \
obj->host_info.info = host_info; \
obj->host_info.finalizer = NULL; \
} \
} \
\
void wasm_##name##_set_host_info_with_finalizer( \
wasm_##name##_t *obj, void *host_info, void (*finalizer)(void *)) \
{ \
if (obj) { \
obj->host_info.info = host_info; \
obj->host_info.finalizer = finalizer; \
} \
}
#define WASM_DEFINE_REF(name) \
WASM_DEFINE_REF_BASE(name) \
\
wasm_ref_t *wasm_##name##_as_ref(wasm_##name##_t *name) \
{ \
if (!name) { \
return NULL; \
} \
\
return wasm_ref_new_internal(name->store, WASM_REF_##name, \
name->name##_idx_rt, name->inst_comm_rt); \
} \
\
const wasm_ref_t *wasm_##name##_as_ref_const(const wasm_##name##_t *name) \
{ \
if (!name) { \
return NULL; \
} \
\
return wasm_ref_new_internal(name->store, WASM_REF_##name, \
name->name##_idx_rt, name->inst_comm_rt); \
} \
\
wasm_##name##_t *wasm_ref_as_##name(wasm_ref_t *ref) \
{ \
if (!ref || WASM_REF_##name != ref->kind) { \
return NULL; \
} \
\
return wasm_##name##_new_internal(ref->store, ref->ref_idx_rt, \
ref->inst_comm_rt); \
} \
\
const wasm_##name##_t *wasm_ref_as_##name##_const(const wasm_ref_t *ref) \
{ \
if (!ref || WASM_REF_##name != ref->kind) { \
return NULL; \
} \
\
return wasm_##name##_new_internal(ref->store, ref->ref_idx_rt, \
ref->inst_comm_rt); \
}
WASM_DEFINE_REF_BASE(ref)
WASM_DEFINE_REF(foreign)
WASM_DEFINE_REF(func)
WASM_DEFINE_REF(global)
WASM_DEFINE_REF(memory)
WASM_DEFINE_REF(table)
static wasm_frame_t *
wasm_frame_new(wasm_instance_t *instance, size_t module_offset,
uint32 func_index, size_t func_offset)
{
wasm_frame_t *frame;
if (!(frame = malloc_internal(sizeof(wasm_frame_t)))) {
return NULL;
}
frame->instance = instance;
frame->module_offset = (uint32)module_offset;
frame->func_index = func_index;
frame->func_offset = (uint32)func_offset;
return frame;
}
own wasm_frame_t *
wasm_frame_copy(const wasm_frame_t *src)
{
if (!src) {
return NULL;
}
return wasm_frame_new(src->instance, src->module_offset, src->func_index,
src->func_offset);
}
void
wasm_frame_delete(own wasm_frame_t *frame)
{
if (frame) {
wasm_runtime_free(frame);
}
}
struct wasm_instance_t *
wasm_frame_instance(const wasm_frame_t *frame)
{
return frame ? frame->instance : NULL;
}
size_t
wasm_frame_module_offset(const wasm_frame_t *frame)
{
return frame ? frame->module_offset : 0;
}
uint32_t
wasm_frame_func_index(const wasm_frame_t *frame)
{
return frame ? frame->func_index : 0;
}
size_t
wasm_frame_func_offset(const wasm_frame_t *frame)
{
return frame ? frame->func_offset : 0;
}
static wasm_trap_t *
wasm_trap_new_internal(WASMModuleInstanceCommon *inst_comm_rt,
const char *default_error_info)
{
wasm_trap_t *trap;
const char *error_info = NULL;
wasm_instance_vec_t *instances;
wasm_instance_t *frame_instance = NULL;
uint32 i;
if (!singleton_engine || !singleton_engine->stores
|| !singleton_engine->stores->num_elems) {
return NULL;
}
#if WASM_ENABLE_INTERP != 0
if (inst_comm_rt->module_type == Wasm_Module_Bytecode) {
error_info = wasm_get_exception((WASMModuleInstance *)inst_comm_rt);
}
#endif
#if WASM_ENABLE_AOT != 0
if (inst_comm_rt->module_type == Wasm_Module_AoT) {
error_info = aot_get_exception((AOTModuleInstance *)inst_comm_rt);
}
#endif
/*
* a wrong combination of module filetype and compilation flags
* also leads to below branch
*/
if (!error_info && !(error_info = default_error_info)) {
return NULL;
}
if (!(trap = malloc_internal(sizeof(wasm_trap_t)))) {
return NULL;
}
if (!(trap->message = malloc_internal(sizeof(wasm_byte_vec_t)))) {
goto failed;
}
wasm_name_new_from_string_nt(trap->message, error_info);
if (strlen(error_info) && !trap->message->data) {
goto failed;
}
#if WASM_ENABLE_DUMP_CALL_STACK != 0
#if WASM_ENABLE_INTERP != 0
if (inst_comm_rt->module_type == Wasm_Module_Bytecode) {
trap->frames = ((WASMModuleInstance *)inst_comm_rt)->frames;
}
#endif
#if WASM_ENABLE_AOT != 0
if (inst_comm_rt->module_type == Wasm_Module_AoT) {
trap->frames = ((AOTModuleInstance *)inst_comm_rt)->frames;
}
#endif
#endif /* WASM_ENABLE_DUMP_CALL_STACK != 0 */
/* allow a NULL frames list */
if (!trap->frames) {
return trap;
}
if (!(instances = singleton_engine->stores->data[0]->instances)) {
goto failed;
}
for (i = 0; i < instances->num_elems; i++) {
if (instances->data[i]->inst_comm_rt == inst_comm_rt) {
frame_instance = instances->data[i];
break;
}
}
for (i = 0; i < trap->frames->num_elems; i++) {
(((wasm_frame_t *)trap->frames->data) + i)->instance = frame_instance;
}
return trap;
failed:
wasm_trap_delete(trap);
return NULL;
}
wasm_trap_t *
wasm_trap_new(wasm_store_t *store, const wasm_message_t *message)
{
wasm_trap_t *trap;
if (!store) {
return NULL;
}
if (!(trap = malloc_internal(sizeof(wasm_trap_t)))) {
return NULL;
}
if (message) {
INIT_VEC(trap->message, wasm_byte_vec_new, message->size,
message->data);
}
return trap;
failed:
wasm_trap_delete(trap);
return NULL;
}
void
wasm_trap_delete(wasm_trap_t *trap)
{
if (!trap) {
return;
}
DEINIT_VEC(trap->message, wasm_byte_vec_delete);
/* reuse frames of WASMModuleInstance, do not free it here */
wasm_runtime_free(trap);
}
void
wasm_trap_message(const wasm_trap_t *trap, own wasm_message_t *out)
{
if (!trap || !out) {
return;
}
wasm_byte_vec_copy(out, trap->message);
}
own wasm_frame_t *
wasm_trap_origin(const wasm_trap_t *trap)
{
wasm_frame_t *latest_frame;
if (!trap || !trap->frames || !trap->frames->num_elems) {
return NULL;
}
/* first frame is the latest frame */
latest_frame = (wasm_frame_t *)trap->frames->data;
return wasm_frame_copy(latest_frame);
}
void
wasm_trap_trace(const wasm_trap_t *trap, own wasm_frame_vec_t *out)
{
uint32 i;
if (!trap || !out) {
return;
}
if (!trap->frames || !trap->frames->num_elems) {
wasm_frame_vec_new_empty(out);
return;
}
wasm_frame_vec_new_uninitialized(out, trap->frames->num_elems);
if (out->size == 0 || !out->data) {
return;
}
for (i = 0; i < trap->frames->num_elems; i++) {
wasm_frame_t *frame;
frame = ((wasm_frame_t *)trap->frames->data) + i;
if (!(out->data[i] =
wasm_frame_new(frame->instance, frame->module_offset,
frame->func_index, frame->func_offset))) {
goto failed;
}
out->num_elems++;
}
return;
failed:
for (i = 0; i < out->num_elems; i++) {
if (out->data[i]) {
wasm_runtime_free(out->data[i]);
}
}
wasm_runtime_free(out->data);
}
wasm_foreign_t *
wasm_foreign_new_internal(wasm_store_t *store, uint32 foreign_idx_rt,
WASMModuleInstanceCommon *inst_comm_rt)
{
wasm_foreign_t *foreign = NULL;
if (!store || !store->foreigns)
return NULL;
if (!(bh_vector_get(store->foreigns, foreign_idx_rt, &foreign))
|| !foreign) {
return NULL;
}
foreign->ref_cnt++;
return foreign;
}
own wasm_foreign_t *
wasm_foreign_new(wasm_store_t *store)
{
wasm_foreign_t *foreign;
if (!store)
return NULL;
if (!(foreign = malloc_internal(sizeof(wasm_foreign_t))))
return NULL;
foreign->store = store;
foreign->kind = WASM_REF_foreign;
foreign->foreign_idx_rt = (uint32)bh_vector_size(store->foreigns);
if (!(bh_vector_append(store->foreigns, &foreign))) {
wasm_runtime_free(foreign);
return NULL;
}
return foreign;
}
void
wasm_foreign_delete(wasm_foreign_t *foreign)
{
if (!foreign)
return;
if (foreign->ref_cnt < 1) {
return;
}
foreign->ref_cnt--;
if (!foreign->ref_cnt) {
wasm_runtime_free(foreign);
}
}
struct wasm_module_ex_t {
struct WASMModuleCommon *module_comm_rt;
wasm_byte_vec_t *binary;
};
static inline wasm_module_t *
module_ext_to_module(wasm_module_ex_t *module_ex)
{
return (wasm_module_t *)module_ex;
}
static inline wasm_module_ex_t *
module_to_module_ext(wasm_module_t *module)
{
return (wasm_module_ex_t *)module;
}
#if WASM_ENABLE_INTERP != 0
#define MODULE_INTERP(module_comm) ((WASMModule *)(*module_comm))
#endif
#if WASM_ENABLE_AOT != 0
#define MODULE_AOT(module_comm) ((AOTModule *)(*module_comm))
#endif
wasm_module_t *
wasm_module_new(wasm_store_t *store, const wasm_byte_vec_t *binary)
{
char error_buf[128] = { 0 };
wasm_module_ex_t *module_ex = NULL;
PackageType pkg_type;
bh_assert(singleton_engine);
if (!store || !binary || binary->size > UINT32_MAX) {
LOG_ERROR("%s failed", __FUNCTION__);
return NULL;
}
pkg_type = get_package_type((uint8 *)binary->data, (uint32)binary->size);
/* whether the combination of compilation flags are compatable with the
* package type */
{
bool result = false;
#if WASM_ENABLE_INTERP != 0
result = (pkg_type == Wasm_Module_Bytecode);
#endif
#if WASM_ENABLE_AOT != 0
result = result || (pkg_type == Wasm_Module_AoT);
#endif
if (!result) {
LOG_VERBOSE("current building isn't compatiable with the module,"
"may need recompile");
}
}
module_ex = malloc_internal(sizeof(wasm_module_ex_t));
if (!module_ex) {
goto failed;
}
INIT_VEC(module_ex->binary, wasm_byte_vec_new, binary->size, binary->data);
module_ex->module_comm_rt = wasm_runtime_load(
(uint8 *)module_ex->binary->data, (uint32)module_ex->binary->size,
error_buf, (uint32)sizeof(error_buf));
if (!(module_ex->module_comm_rt)) {
LOG_ERROR(error_buf);
goto failed;
}
/* add it to a watching list in store */
if (!bh_vector_append((Vector *)store->modules, &module_ex)) {
goto failed;
}
return module_ext_to_module(module_ex);
failed:
LOG_ERROR("%s failed", __FUNCTION__);
wasm_module_delete_internal(module_ext_to_module(module_ex));
return NULL;
}
bool
wasm_module_validate(wasm_store_t *store, const wasm_byte_vec_t *binary)
{
struct WASMModuleCommon *module_rt;
char error_buf[128] = { 0 };
bh_assert(singleton_engine);
if (!store || !binary || binary->size > UINT32_MAX) {
LOG_ERROR("%s failed", __FUNCTION__);
return false;
}
if ((module_rt = wasm_runtime_load((uint8 *)binary->data,
(uint32)binary->size, error_buf, 128))) {
wasm_runtime_unload(module_rt);
return true;
}
else {
LOG_VERBOSE(error_buf);
return false;
}
}
static void
wasm_module_delete_internal(wasm_module_t *module)
{
wasm_module_ex_t *module_ex;
if (!module) {
return;
}
module_ex = module_to_module_ext(module);
DEINIT_VEC(module_ex->binary, wasm_byte_vec_delete);
if (module_ex->module_comm_rt) {
wasm_runtime_unload(module_ex->module_comm_rt);
module_ex->module_comm_rt = NULL;
}
wasm_runtime_free(module_ex);
}
void
wasm_module_delete(wasm_module_t *module)
{
/* the module will be released when releasing the store */
}
void
wasm_module_imports(const wasm_module_t *module, own wasm_importtype_vec_t *out)
{
uint32 i, import_func_count = 0, import_memory_count = 0,
import_global_count = 0, import_table_count = 0, import_count = 0;
wasm_byte_vec_t module_name = { 0 }, name = { 0 };
wasm_externtype_t *extern_type = NULL;
wasm_importtype_t *import_type = NULL;
if (!module || !out) {
return;
}
#if WASM_ENABLE_INTERP != 0
if ((*module)->module_type == Wasm_Module_Bytecode) {
import_func_count = MODULE_INTERP(module)->import_function_count;
import_global_count = MODULE_INTERP(module)->import_global_count;
import_memory_count = MODULE_INTERP(module)->import_memory_count;
import_table_count = MODULE_INTERP(module)->import_table_count;
}
#endif
#if WASM_ENABLE_AOT != 0
if ((*module)->module_type == Wasm_Module_AoT) {
import_func_count = MODULE_AOT(module)->import_func_count;
import_global_count = MODULE_AOT(module)->import_global_count;
import_memory_count = MODULE_AOT(module)->import_memory_count;
import_table_count = MODULE_AOT(module)->import_table_count;
}
#endif
import_count = import_func_count + import_global_count + import_table_count
+ import_memory_count;
wasm_importtype_vec_new_uninitialized(out, import_count);
/*
* a wrong combination of module filetype and compilation flags
* also leads to below branch
*/
if (!out->data) {
return;
}
for (i = 0; i != import_count; ++i) {
char *module_name_rt = NULL, *field_name_rt = NULL;
memset(&module_name, 0, sizeof(wasm_val_vec_t));
memset(&name, 0, sizeof(wasm_val_vec_t));
extern_type = NULL;
if (i < import_func_count) {
wasm_functype_t *type = NULL;
WASMType *type_rt = NULL;
#if WASM_ENABLE_INTERP != 0
if ((*module)->module_type == Wasm_Module_Bytecode) {
WASMImport *import =
MODULE_INTERP(module)->import_functions + i;
module_name_rt = import->u.names.module_name;
field_name_rt = import->u.names.field_name;
type_rt = import->u.function.func_type;
}
#endif
#if WASM_ENABLE_AOT != 0
if ((*module)->module_type == Wasm_Module_AoT) {
AOTImportFunc *import = MODULE_AOT(module)->import_funcs + i;
module_name_rt = import->module_name;
field_name_rt = import->func_name;
type_rt = import->func_type;
}
#endif
if (!module_name_rt || !field_name_rt || !type_rt) {
continue;
}
if (!(type = wasm_functype_new_internal(type_rt))) {
goto failed;
}
extern_type = wasm_functype_as_externtype(type);
}
else if (i < import_func_count + import_global_count) {
wasm_globaltype_t *type = NULL;
uint8 val_type_rt = 0;
bool mutability_rt = 0;
#if WASM_ENABLE_INTERP != 0
if ((*module)->module_type == Wasm_Module_Bytecode) {
WASMImport *import = MODULE_INTERP(module)->import_globals
+ (i - import_func_count);
module_name_rt = import->u.names.module_name;
field_name_rt = import->u.names.field_name;
val_type_rt = import->u.global.type;
mutability_rt = import->u.global.is_mutable;
}
#endif
#if WASM_ENABLE_AOT != 0
if ((*module)->module_type == Wasm_Module_AoT) {
AOTImportGlobal *import = MODULE_AOT(module)->import_globals
+ (i - import_func_count);
module_name_rt = import->module_name;
field_name_rt = import->global_name;
val_type_rt = import->type;
mutability_rt = import->is_mutable;
}
#endif
if (!module_name_rt || !field_name_rt) {
continue;
}
if (!(type = wasm_globaltype_new_internal(val_type_rt,
mutability_rt))) {
goto failed;
}
extern_type = wasm_globaltype_as_externtype(type);
}
else if (i < import_func_count + import_global_count
+ import_memory_count) {
wasm_memorytype_t *type = NULL;
uint32 min_page = 0, max_page = 0;
#if WASM_ENABLE_INTERP != 0
if ((*module)->module_type == Wasm_Module_Bytecode) {
WASMImport *import =
MODULE_INTERP(module)->import_memories
+ (i - import_func_count - import_global_count);
module_name_rt = import->u.names.module_name;
field_name_rt = import->u.names.field_name;
min_page = import->u.memory.init_page_count;
max_page = import->u.memory.max_page_count;
}
#endif
#if WASM_ENABLE_AOT != 0
if ((*module)->module_type == Wasm_Module_AoT) {
AOTImportMemory *import =
MODULE_AOT(module)->import_memories
+ (i - import_func_count - import_global_count);
module_name_rt = import->module_name;
field_name_rt = import->memory_name;
min_page = import->mem_init_page_count;
max_page = import->mem_max_page_count;
}
#endif
if (!module_name_rt || !field_name_rt) {
continue;
}
if (!(type = wasm_memorytype_new_internal(min_page, max_page))) {
goto failed;
}
extern_type = wasm_memorytype_as_externtype(type);
}
else {
wasm_tabletype_t *type = NULL;
uint8 elem_type_rt = 0;
uint32 min_size = 0, max_size = 0;
#if WASM_ENABLE_INTERP != 0
if ((*module)->module_type == Wasm_Module_Bytecode) {
WASMImport *import =
MODULE_INTERP(module)->import_tables
+ (i - import_func_count - import_global_count
- import_memory_count);
module_name_rt = import->u.names.module_name;
field_name_rt = import->u.names.field_name;
elem_type_rt = import->u.table.elem_type;
min_size = import->u.table.init_size;
max_size = import->u.table.max_size;
}
#endif
#if WASM_ENABLE_AOT != 0
if ((*module)->module_type == Wasm_Module_AoT) {
AOTImportTable *import =
MODULE_AOT(module)->import_tables
+ (i - import_func_count - import_global_count
- import_memory_count);
module_name_rt = import->module_name;
field_name_rt = import->table_name;
elem_type_rt = import->elem_type;
min_size = import->table_init_size;
max_size = import->table_max_size;
}
#endif
if (!module_name_rt || !field_name_rt) {
continue;
}
if (!(type = wasm_tabletype_new_internal(elem_type_rt, min_size,
max_size))) {
goto failed;
}
extern_type = wasm_tabletype_as_externtype(type);
}
bh_assert(extern_type);
wasm_name_new_from_string(&module_name, module_name_rt);
if (strlen(module_name_rt) && !module_name.data) {
goto failed;
}
wasm_name_new_from_string(&name, field_name_rt);
if (strlen(field_name_rt) && !name.data) {
goto failed;
}
if (!(import_type =
wasm_importtype_new(&module_name, &name, extern_type))) {
goto failed;
}
if (!bh_vector_append((Vector *)out, &import_type)) {
goto failed_importtype_new;
}
continue;
failed:
wasm_byte_vec_delete(&module_name);
wasm_byte_vec_delete(&name);
wasm_externtype_delete(extern_type);
failed_importtype_new:
wasm_importtype_delete(import_type);
}
}
void
wasm_module_exports(const wasm_module_t *module, wasm_exporttype_vec_t *out)
{
uint32 i, export_count = 0;
wasm_byte_vec_t name = { 0 };
wasm_externtype_t *extern_type = NULL;
wasm_exporttype_t *export_type = NULL;
if (!module || !out) {
return;
}
#if WASM_ENABLE_INTERP != 0
if ((*module)->module_type == Wasm_Module_Bytecode) {
export_count = MODULE_INTERP(module)->export_count;
}
#endif
#if WASM_ENABLE_AOT != 0
if ((*module)->module_type == Wasm_Module_AoT) {
export_count = MODULE_AOT(module)->export_count;
}
#endif
wasm_exporttype_vec_new_uninitialized(out, export_count);
/*
* a wrong combination of module filetype and compilation flags
* also leads to below branch
*/
if (!out->data) {
return;
}
for (i = 0; i != export_count; i++) {
WASMExport *export = NULL;
#if WASM_ENABLE_INTERP != 0
if ((*module)->module_type == Wasm_Module_Bytecode) {
export = MODULE_INTERP(module)->exports + i;
}
#endif
#if WASM_ENABLE_AOT != 0
if ((*module)->module_type == Wasm_Module_AoT) {
export = MODULE_AOT(module)->exports + i;
}
#endif
if (!export) {
continue;
}
/* byte* -> wasm_byte_vec_t */
wasm_name_new_from_string(&name, export->name);
if (strlen(export->name) && !name.data) {
goto failed;
}
/* WASMExport -> (WASMType, (uint8, bool)) -> (wasm_functype_t,
* wasm_globaltype_t) -> wasm_externtype_t*/
switch (export->kind) {
case EXPORT_KIND_FUNC:
{
wasm_functype_t *type = NULL;
WASMType *type_rt;
if (!wasm_runtime_get_export_func_type(*module, export,
&type_rt)) {
goto failed;
}
if (!(type = wasm_functype_new_internal(type_rt))) {
goto failed;
}
extern_type = wasm_functype_as_externtype(type);
break;
}
case EXPORT_KIND_GLOBAL:
{
wasm_globaltype_t *type = NULL;
uint8 val_type_rt = 0;
bool mutability_rt = 0;
if (!wasm_runtime_get_export_global_type(
*module, export, &val_type_rt, &mutability_rt)) {
goto failed;
}
if (!(type = wasm_globaltype_new_internal(val_type_rt,
mutability_rt))) {
goto failed;
}
extern_type = wasm_globaltype_as_externtype(type);
break;
}
case EXPORT_KIND_MEMORY:
{
wasm_memorytype_t *type = NULL;
uint32 min_page = 0, max_page = 0;
if (!wasm_runtime_get_export_memory_type(
*module, export, &min_page, &max_page)) {
goto failed;
}
if (!(type =
wasm_memorytype_new_internal(min_page, max_page))) {
goto failed;
}
extern_type = wasm_memorytype_as_externtype(type);
break;
}
case EXPORT_KIND_TABLE:
{
wasm_tabletype_t *type = NULL;
uint8 elem_type_rt = 0;
uint32 min_size = 0, max_size = 0;
if (!wasm_runtime_get_export_table_type(
*module, export, &elem_type_rt, &min_size, &max_size)) {
goto failed;
}
if (!(type = wasm_tabletype_new_internal(elem_type_rt, min_size,
max_size))) {
goto failed;
}
extern_type = wasm_tabletype_as_externtype(type);
break;
}
default:
{
LOG_WARNING("%s meets unsupported type %u", __FUNCTION__,
export->kind);
break;
}
}
if (!(export_type = wasm_exporttype_new(&name, extern_type))) {
goto failed;
}
if (!(bh_vector_append((Vector *)out, &export_type))) {
goto failed_exporttype_new;
}
}
return;
failed:
wasm_byte_vec_delete(&name);
wasm_externtype_delete(extern_type);
failed_exporttype_new:
wasm_exporttype_delete(export_type);
wasm_exporttype_vec_delete(out);
}
#if WASM_ENABLE_JIT == 0 || WASM_ENABLE_LAZY_JIT != 0
void
wasm_module_serialize(wasm_module_t *module, own wasm_byte_vec_t *out)
{
(void)module;
(void)out;
LOG_ERROR("only supported serialization in JIT with eager compilation");
}
own wasm_module_t *
wasm_module_deserialize(wasm_store_t *module, const wasm_byte_vec_t *binary)
{
(void)module;
(void)binary;
LOG_ERROR("only supported deserialization in JIT with eager compilation");
return NULL;
}
#else
extern uint8 *
aot_emit_aot_file_buf(AOTCompContext *comp_ctx, AOTCompData *comp_data,
uint32 *p_aot_file_size);
void
wasm_module_serialize(wasm_module_t *module, own wasm_byte_vec_t *out)
{
wasm_module_ex_t *module_ex;
AOTCompContext *comp_ctx;
AOTCompData *comp_data;
uint8 *aot_file_buf = NULL;
uint32 aot_file_size = 0;
if (!module || !out)
return;
module_ex = module_to_module_ext(module);
comp_ctx = ((WASMModule *)(module_ex->module_comm_rt))->comp_ctx;
comp_data = ((WASMModule *)(module_ex->module_comm_rt))->comp_data;
bh_assert(comp_ctx != NULL && comp_data != NULL);
aot_file_buf = aot_emit_aot_file_buf(comp_ctx, comp_data, &aot_file_size);
if (!aot_file_buf)
return;
wasm_byte_vec_new(out, aot_file_size, (wasm_byte_t *)aot_file_buf);
wasm_runtime_free(aot_file_buf);
return;
}
own wasm_module_t *
wasm_module_deserialize(wasm_store_t *store, const wasm_byte_vec_t *binary)
{
return wasm_module_new(store, binary);
}
#endif
static wasm_func_t *
wasm_func_new_basic(wasm_store_t *store, const wasm_functype_t *type,
wasm_func_callback_t func_callback)
{
wasm_func_t *func = NULL;
if (!type) {
goto failed;
}
if (!(func = malloc_internal(sizeof(wasm_func_t)))) {
goto failed;
}
func->store = store;
func->kind = WASM_EXTERN_FUNC;
func->func_idx_rt = (uint16)-1;
func->with_env = false;
func->u.cb = func_callback;
if (!(func->type = wasm_functype_copy(type))) {
goto failed;
}
RETURN_OBJ(func, wasm_func_delete)
}
static wasm_func_t *
wasm_func_new_with_env_basic(wasm_store_t *store, const wasm_functype_t *type,
wasm_func_callback_with_env_t callback, void *env,
void (*finalizer)(void *))
{
wasm_func_t *func = NULL;
if (!type) {
goto failed;
}
if (!(func = malloc_internal(sizeof(wasm_func_t)))) {
goto failed;
}
func->store = store;
func->kind = WASM_EXTERN_FUNC;
func->func_idx_rt = (uint16)-1;
func->with_env = true;
func->u.cb_env.cb = callback;
func->u.cb_env.env = env;
func->u.cb_env.finalizer = finalizer;
if (!(func->type = wasm_functype_copy(type))) {
goto failed;
}
RETURN_OBJ(func, wasm_func_delete)
}
wasm_func_t *
wasm_func_new(wasm_store_t *store, const wasm_functype_t *type,
wasm_func_callback_t callback)
{
bh_assert(singleton_engine);
if (!callback) {
return NULL;
}
return wasm_func_new_basic(store, type, callback);
}
wasm_func_t *
wasm_func_new_with_env(wasm_store_t *store, const wasm_functype_t *type,
wasm_func_callback_with_env_t callback, void *env,
void (*finalizer)(void *))
{
bh_assert(singleton_engine);
if (!callback) {
return NULL;
}
return wasm_func_new_with_env_basic(store, type, callback, env, finalizer);
}
wasm_func_t *
wasm_func_new_internal(wasm_store_t *store, uint16 func_idx_rt,
WASMModuleInstanceCommon *inst_comm_rt)
{
wasm_func_t *func = NULL;
WASMType *type_rt = NULL;
bh_assert(singleton_engine);
if (!inst_comm_rt) {
return NULL;
}
func = malloc_internal(sizeof(wasm_func_t));
if (!func) {
goto failed;
}
func->kind = WASM_EXTERN_FUNC;
#if WASM_ENABLE_INTERP != 0
if (inst_comm_rt->module_type == Wasm_Module_Bytecode) {
bh_assert(func_idx_rt
< ((WASMModuleInstance *)inst_comm_rt)->e->function_count);
WASMFunctionInstance *func_interp =
((WASMModuleInstance *)inst_comm_rt)->e->functions + func_idx_rt;
type_rt = func_interp->is_import_func
? func_interp->u.func_import->func_type
: func_interp->u.func->func_type;
}
#endif
#if WASM_ENABLE_AOT != 0
if (inst_comm_rt->module_type == Wasm_Module_AoT) {
/* use same index to trace the function type in AOTFuncType **func_types
*/
AOTModule *module_aot =
(AOTModule *)((AOTModuleInstance *)inst_comm_rt)->module;
if (func_idx_rt < module_aot->import_func_count) {
type_rt = (module_aot->import_funcs + func_idx_rt)->func_type;
}
else {
type_rt =
module_aot->func_types[module_aot->func_type_indexes
[func_idx_rt
- module_aot->import_func_count]];
}
}
#endif
/*
* a wrong combination of module filetype and compilation flags
* also leads to below branch
*/
if (!type_rt) {
goto failed;
}
func->type = wasm_functype_new_internal(type_rt);
if (!func->type) {
goto failed;
}
/* will add name information when processing "exports" */
func->store = store;
func->module_name = NULL;
func->name = NULL;
func->func_idx_rt = func_idx_rt;
func->inst_comm_rt = inst_comm_rt;
return func;
failed:
LOG_DEBUG("%s failed", __FUNCTION__);
wasm_func_delete(func);
return NULL;
}
void
wasm_func_delete(wasm_func_t *func)
{
if (!func) {
return;
}
if (func->type) {
wasm_functype_delete(func->type);
func->type = NULL;
}
if (func->with_env) {
if (func->u.cb_env.finalizer) {
func->u.cb_env.finalizer(func->u.cb_env.env);
func->u.cb_env.finalizer = NULL;
func->u.cb_env.env = NULL;
}
}
DELETE_HOST_INFO(func)
wasm_runtime_free(func);
}
own wasm_func_t *
wasm_func_copy(const wasm_func_t *func)
{
wasm_func_t *cloned = NULL;
if (!func) {
return NULL;
}
if (!(cloned = func->with_env ? wasm_func_new_with_env_basic(
func->store, func->type, func->u.cb_env.cb,
func->u.cb_env.env, func->u.cb_env.finalizer)
: wasm_func_new_basic(func->store, func->type,
func->u.cb))) {
goto failed;
}
cloned->func_idx_rt = func->func_idx_rt;
cloned->inst_comm_rt = func->inst_comm_rt;
RETURN_OBJ(cloned, wasm_func_delete)
}
own wasm_functype_t *
wasm_func_type(const wasm_func_t *func)
{
if (!func) {
return NULL;
}
return wasm_functype_copy(func->type);
}
static bool
params_to_argv(const wasm_val_vec_t *params,
const wasm_valtype_vec_t *param_defs, uint32 *argv,
uint32 *ptr_argc)
{
size_t i = 0;
if (!param_defs->num_elems) {
return true;
}
if (!params || !params->num_elems || !params->size || !params->data) {
LOG_ERROR("the parameter params is invalid");
return false;
}
*ptr_argc = 0;
for (i = 0; i < param_defs->num_elems; ++i) {
const wasm_val_t *param = params->data + i;
bh_assert((*(param_defs->data + i))->kind == param->kind);
switch (param->kind) {
case WASM_I32:
*(int32 *)argv = param->of.i32;
argv += 1;
*ptr_argc += 1;
break;
case WASM_I64:
*(int64 *)argv = param->of.i64;
argv += 2;
*ptr_argc += 2;
break;
case WASM_F32:
*(float32 *)argv = param->of.f32;
argv += 1;
*ptr_argc += 1;
break;
case WASM_F64:
*(float64 *)argv = param->of.f64;
argv += 2;
*ptr_argc += 2;
break;
#if WASM_ENABLE_REF_TYPES != 0
case WASM_ANYREF:
*(uintptr_t *)argv = (uintptr_t)param->of.ref;
argv += sizeof(uintptr_t) / sizeof(uint32);
*ptr_argc += 1;
break;
#endif
default:
LOG_WARNING("unexpected parameter val type %d", param->kind);
return false;
}
}
return true;
}
static bool
argv_to_results(const uint32 *argv, const wasm_valtype_vec_t *result_defs,
wasm_val_vec_t *results)
{
size_t i = 0, argv_i = 0;
wasm_val_t *result;
if (!result_defs->num_elems) {
return true;
}
if (!results || !results->size || !results->data) {
LOG_ERROR("the parameter results is invalid");
return false;
}
for (i = 0, result = results->data, argv_i = 0; i < result_defs->num_elems;
i++, result++) {
switch (result_defs->data[i]->kind) {
case WASM_I32:
{
result->kind = WASM_I32;
result->of.i32 = *(int32 *)(argv + argv_i);
argv_i += 1;
break;
}
case WASM_I64:
{
result->kind = WASM_I64;
result->of.i64 = *(int64 *)(argv + argv_i);
argv_i += 2;
break;
}
case WASM_F32:
{
result->kind = WASM_F32;
result->of.f32 = *(float32 *)(argv + argv_i);
argv_i += 1;
break;
}
case WASM_F64:
{
result->kind = WASM_F64;
result->of.f64 = *(float64 *)(argv + argv_i);
argv_i += 2;
break;
}
#if WASM_ENABLE_REF_TYPES != 0
case WASM_ANYREF:
{
result->kind = WASM_ANYREF;
result->of.ref =
(struct wasm_ref_t *)(*(uintptr_t *)(argv + argv_i));
argv_i += sizeof(uintptr_t) / sizeof(uint32);
break;
}
#endif
default:
LOG_WARNING("%s meets unsupported type: %d", __FUNCTION__,
result_defs->data[i]->kind);
return false;
}
}
return true;
}
wasm_trap_t *
wasm_func_call(const wasm_func_t *func, const wasm_val_vec_t *params,
wasm_val_vec_t *results)
{
/* parameters count as if all are uint32 */
/* a int64 or float64 parameter means 2 */
uint32 argc = 0;
/* a parameter list and a return value list */
uint32 argv_buf[32] = { 0 }, *argv = argv_buf;
WASMFunctionInstanceCommon *func_comm_rt = NULL;
WASMExecEnv *exec_env = NULL;
size_t param_count, result_count, alloc_count;
if (!func) {
return NULL;
}
if (!func->inst_comm_rt) {
wasm_name_t message = { 0 };
wasm_trap_t *trap;
wasm_name_new_from_string(&message, "failed to call unlinked function");
trap = wasm_trap_new(func->store, &message);
wasm_byte_vec_delete(&message);
return trap;
}
bh_assert(func->type);
#if WASM_ENABLE_INTERP != 0
if (func->inst_comm_rt->module_type == Wasm_Module_Bytecode) {
func_comm_rt = ((WASMModuleInstance *)func->inst_comm_rt)->e->functions
+ func->func_idx_rt;
}
#endif
#if WASM_ENABLE_AOT != 0
if (func->inst_comm_rt->module_type == Wasm_Module_AoT) {
if (!(func_comm_rt = func->func_comm_rt)) {
AOTModuleInstance *inst_aot =
(AOTModuleInstance *)func->inst_comm_rt;
AOTModule *module_aot = (AOTModule *)inst_aot->module;
uint32 export_i = 0, export_func_j = 0;
for (; export_i < module_aot->export_count; ++export_i) {
AOTExport *export = module_aot->exports + export_i;
if (export->kind == EXPORT_KIND_FUNC) {
if (export->index == func->func_idx_rt) {
func_comm_rt =
(AOTFunctionInstance *)inst_aot->export_functions
+ export_func_j;
((wasm_func_t *)func)->func_comm_rt = func_comm_rt;
break;
}
export_func_j++;
}
}
}
}
#endif
/*
* a wrong combination of module filetype and compilation flags
* also leads to below branch
*/
if (!func_comm_rt) {
goto failed;
}
param_count = wasm_func_param_arity(func);
result_count = wasm_func_result_arity(func);
alloc_count = (param_count > result_count) ? param_count : result_count;
if (alloc_count > (size_t)sizeof(argv_buf) / sizeof(uint64)) {
if (!(argv = malloc_internal(sizeof(uint64) * alloc_count))) {
goto failed;
}
}
/* copy parametes */
if (param_count
&& !params_to_argv(params, wasm_functype_params(func->type), argv,
&argc)) {
goto failed;
}
exec_env = wasm_runtime_get_exec_env_singleton(func->inst_comm_rt);
if (!exec_env) {
goto failed;
}
wasm_runtime_set_exception(func->inst_comm_rt, NULL);
if (!wasm_runtime_call_wasm(exec_env, func_comm_rt, argc, argv)) {
if (wasm_runtime_get_exception(func->inst_comm_rt)) {
LOG_DEBUG(wasm_runtime_get_exception(func->inst_comm_rt));
goto failed;
}
}
/* copy results */
if (result_count) {
if (!argv_to_results(argv, wasm_functype_results(func->type),
results)) {
goto failed;
}
results->num_elems = result_count;
results->size = result_count;
}
if (argv != argv_buf)
wasm_runtime_free(argv);
return NULL;
failed:
if (argv != argv_buf)
wasm_runtime_free(argv);
/* trap -> exception -> trap */
if (wasm_runtime_get_exception(func->inst_comm_rt)) {
return wasm_trap_new_internal(func->inst_comm_rt, NULL);
}
else {
return wasm_trap_new_internal(func->inst_comm_rt,
"wasm_func_call failed");
}
}
size_t
wasm_func_param_arity(const wasm_func_t *func)
{
if (!func || !func->type || !func->type->params) {
return 0;
}
return func->type->params->num_elems;
}
size_t
wasm_func_result_arity(const wasm_func_t *func)
{
if (!func || !func->type || !func->type->results) {
return 0;
}
return func->type->results->num_elems;
}
wasm_global_t *
wasm_global_new(wasm_store_t *store, const wasm_globaltype_t *global_type,
const wasm_val_t *init)
{
wasm_global_t *global = NULL;
bh_assert(singleton_engine);
if (!global_type || !init) {
goto failed;
}
global = malloc_internal(sizeof(wasm_global_t));
if (!global) {
goto failed;
}
global->store = store;
global->kind = WASM_EXTERN_GLOBAL;
global->type = wasm_globaltype_copy(global_type);
if (!global->type) {
goto failed;
}
global->init = malloc_internal(sizeof(wasm_val_t));
if (!global->init) {
goto failed;
}
wasm_val_copy(global->init, init);
/* TODO: how to check if above is failed */
return global;
failed:
LOG_DEBUG("%s failed", __FUNCTION__);
wasm_global_delete(global);
return NULL;
}
/* almost same with wasm_global_new */
wasm_global_t *
wasm_global_copy(const wasm_global_t *src)
{
wasm_global_t *global = NULL;
if (!src) {
return NULL;
}
global = malloc_internal(sizeof(wasm_global_t));
if (!global) {
goto failed;
}
global->kind = WASM_EXTERN_GLOBAL;
global->type = wasm_globaltype_copy(src->type);
if (!global->type) {
goto failed;
}
global->init = malloc_internal(sizeof(wasm_val_t));
if (!global->init) {
goto failed;
}
wasm_val_copy(global->init, src->init);
global->global_idx_rt = src->global_idx_rt;
global->inst_comm_rt = src->inst_comm_rt;
return global;
failed:
LOG_DEBUG("%s failed", __FUNCTION__);
wasm_global_delete(global);
return NULL;
}
void
wasm_global_delete(wasm_global_t *global)
{
if (!global) {
return;
}
if (global->init) {
wasm_val_delete(global->init);
global->init = NULL;
}
if (global->type) {
wasm_globaltype_delete(global->type);
global->type = NULL;
}
DELETE_HOST_INFO(global)
wasm_runtime_free(global);
}
#if WASM_ENABLE_INTERP != 0
static bool
interp_global_set(const WASMModuleInstance *inst_interp, uint16 global_idx_rt,
const wasm_val_t *v)
{
const WASMGlobalInstance *global_interp =
inst_interp->e->globals + global_idx_rt;
uint8 val_type_rt = global_interp->type;
#if WASM_ENABLE_MULTI_MODULE != 0
uint8 *data = global_interp->import_global_inst
? global_interp->import_module_inst->global_data
+ global_interp->import_global_inst->data_offset
: inst_interp->global_data + global_interp->data_offset;
#else
uint8 *data = inst_interp->global_data + global_interp->data_offset;
#endif
return wasm_val_to_rt_val((WASMModuleInstanceCommon *)inst_interp,
val_type_rt, v, data);
}
static bool
interp_global_get(const WASMModuleInstance *inst_interp, uint16 global_idx_rt,
wasm_val_t *out)
{
WASMGlobalInstance *global_interp = inst_interp->e->globals + global_idx_rt;
uint8 val_type_rt = global_interp->type;
#if WASM_ENABLE_MULTI_MODULE != 0
uint8 *data = global_interp->import_global_inst
? global_interp->import_module_inst->global_data
+ global_interp->import_global_inst->data_offset
: inst_interp->global_data + global_interp->data_offset;
#else
uint8 *data = inst_interp->global_data + global_interp->data_offset;
#endif
return rt_val_to_wasm_val(data, val_type_rt, out);
}
#endif
#if WASM_ENABLE_AOT != 0
static bool
aot_global_set(const AOTModuleInstance *inst_aot, uint16 global_idx_rt,
const wasm_val_t *v)
{
AOTModule *module_aot = (AOTModule *)inst_aot->module;
uint8 val_type_rt = 0;
uint32 data_offset = 0;
void *data = NULL;
if (global_idx_rt < module_aot->import_global_count) {
data_offset = module_aot->import_globals[global_idx_rt].data_offset;
val_type_rt = module_aot->import_globals[global_idx_rt].type;
}
else {
data_offset =
module_aot->globals[global_idx_rt - module_aot->import_global_count]
.data_offset;
val_type_rt =
module_aot->globals[global_idx_rt - module_aot->import_global_count]
.type;
}
data = (void *)(inst_aot->global_data + data_offset);
return wasm_val_to_rt_val((WASMModuleInstanceCommon *)inst_aot, val_type_rt,
v, data);
}
static bool
aot_global_get(const AOTModuleInstance *inst_aot, uint16 global_idx_rt,
wasm_val_t *out)
{
AOTModule *module_aot = (AOTModule *)inst_aot->module;
uint8 val_type_rt = 0;
uint32 data_offset = 0;
uint8 *data = NULL;
if (global_idx_rt < module_aot->import_global_count) {
data_offset = module_aot->import_globals[global_idx_rt].data_offset;
val_type_rt = module_aot->import_globals[global_idx_rt].type;
}
else {
data_offset =
module_aot->globals[global_idx_rt - module_aot->import_global_count]
.data_offset;
val_type_rt =
module_aot->globals[global_idx_rt - module_aot->import_global_count]
.type;
}
data = inst_aot->global_data + data_offset;
return rt_val_to_wasm_val(data, val_type_rt, out);
}
#endif
void
wasm_global_set(wasm_global_t *global, const wasm_val_t *v)
{
if (!global || !v || !global->inst_comm_rt) {
return;
}
#if WASM_ENABLE_INTERP != 0
if (global->inst_comm_rt->module_type == Wasm_Module_Bytecode) {
(void)interp_global_set((WASMModuleInstance *)global->inst_comm_rt,
global->global_idx_rt, v);
return;
}
#endif
#if WASM_ENABLE_AOT != 0
if (global->inst_comm_rt->module_type == Wasm_Module_AoT) {
(void)aot_global_set((AOTModuleInstance *)global->inst_comm_rt,
global->global_idx_rt, v);
return;
}
#endif
/*
* a wrong combination of module filetype and compilation flags
* leads to below branch
*/
UNREACHABLE();
}
void
wasm_global_get(const wasm_global_t *global, wasm_val_t *out)
{
if (!global || !out) {
return;
}
if (!global->inst_comm_rt) {
return;
}
memset(out, 0, sizeof(wasm_val_t));
#if WASM_ENABLE_INTERP != 0
if (global->inst_comm_rt->module_type == Wasm_Module_Bytecode) {
(void)interp_global_get((WASMModuleInstance *)global->inst_comm_rt,
global->global_idx_rt, out);
return;
}
#endif
#if WASM_ENABLE_AOT != 0
if (global->inst_comm_rt->module_type == Wasm_Module_AoT) {
(void)aot_global_get((AOTModuleInstance *)global->inst_comm_rt,
global->global_idx_rt, out);
return;
}
#endif
/*
* a wrong combination of module filetype and compilation flags
* leads to below branch
*/
UNREACHABLE();
}
wasm_global_t *
wasm_global_new_internal(wasm_store_t *store, uint16 global_idx_rt,
WASMModuleInstanceCommon *inst_comm_rt)
{
wasm_global_t *global = NULL;
uint8 val_type_rt = 0;
bool is_mutable = 0;
bool init = false;
bh_assert(singleton_engine);
if (!inst_comm_rt) {
return NULL;
}
global = malloc_internal(sizeof(wasm_global_t));
if (!global) {
goto failed;
}
global->store = store;
global->kind = WASM_EXTERN_GLOBAL;
#if WASM_ENABLE_INTERP != 0
if (inst_comm_rt->module_type == Wasm_Module_Bytecode) {
WASMGlobalInstance *global_interp =
((WASMModuleInstance *)inst_comm_rt)->e->globals + global_idx_rt;
val_type_rt = global_interp->type;
is_mutable = global_interp->is_mutable;
init = true;
}
#endif
#if WASM_ENABLE_AOT != 0
if (inst_comm_rt->module_type == Wasm_Module_AoT) {
AOTModuleInstance *inst_aot = (AOTModuleInstance *)inst_comm_rt;
AOTModule *module_aot = (AOTModule *)inst_aot->module;
init = true;
if (global_idx_rt < module_aot->import_global_count) {
AOTImportGlobal *global_import_aot =
module_aot->import_globals + global_idx_rt;
val_type_rt = global_import_aot->type;
is_mutable = global_import_aot->is_mutable;
}
else {
AOTGlobal *global_aot =
module_aot->globals
+ (global_idx_rt - module_aot->import_global_count);
val_type_rt = global_aot->type;
is_mutable = global_aot->is_mutable;
}
}
#endif
/*
* a wrong combination of module filetype and compilation flags
* leads to below branch
*/
if (!init) {
goto failed;
}
global->type = wasm_globaltype_new_internal(val_type_rt, is_mutable);
if (!global->type) {
goto failed;
}
global->init = malloc_internal(sizeof(wasm_val_t));
if (!global->init) {
goto failed;
}
#if WASM_ENABLE_INTERP != 0
if (inst_comm_rt->module_type == Wasm_Module_Bytecode) {
interp_global_get((WASMModuleInstance *)inst_comm_rt, global_idx_rt,
global->init);
}
#endif
#if WASM_ENABLE_AOT != 0
if (inst_comm_rt->module_type == Wasm_Module_AoT) {
aot_global_get((AOTModuleInstance *)inst_comm_rt, global_idx_rt,
global->init);
}
#endif
global->inst_comm_rt = inst_comm_rt;
global->global_idx_rt = global_idx_rt;
return global;
failed:
LOG_DEBUG("%s failed", __FUNCTION__);
wasm_global_delete(global);
return NULL;
}
wasm_globaltype_t *
wasm_global_type(const wasm_global_t *global)
{
if (!global) {
return NULL;
}
return wasm_globaltype_copy(global->type);
}
static wasm_table_t *
wasm_table_new_basic(wasm_store_t *store, const wasm_tabletype_t *type)
{
wasm_table_t *table = NULL;
if (!(table = malloc_internal(sizeof(wasm_table_t)))) {
goto failed;
}
table->store = store;
table->kind = WASM_EXTERN_TABLE;
if (!(table->type = wasm_tabletype_copy(type))) {
goto failed;
}
RETURN_OBJ(table, wasm_table_delete);
}
wasm_table_t *
wasm_table_new_internal(wasm_store_t *store, uint16 table_idx_rt,
WASMModuleInstanceCommon *inst_comm_rt)
{
wasm_table_t *table = NULL;
uint8 val_type_rt = 0;
uint32 init_size = 0, max_size = 0;
bh_assert(singleton_engine);
if (!inst_comm_rt) {
return NULL;
}
if (!(table = malloc_internal(sizeof(wasm_table_t)))) {
goto failed;
}
table->store = store;
table->kind = WASM_EXTERN_TABLE;
if (!wasm_runtime_get_table_inst_elem_type(
inst_comm_rt, table_idx_rt, &val_type_rt, &init_size, &max_size)) {
/*
* a wrong combination of module filetype and compilation flags
* leads to below branch
*/
goto failed;
}
if (!(table->type =
wasm_tabletype_new_internal(val_type_rt, init_size, max_size))) {
goto failed;
}
table->inst_comm_rt = inst_comm_rt;
table->table_idx_rt = table_idx_rt;
RETURN_OBJ(table, wasm_table_delete);
}
/* will not actually apply this new table into the runtime */
wasm_table_t *
wasm_table_new(wasm_store_t *store, const wasm_tabletype_t *table_type,
wasm_ref_t *init)
{
wasm_table_t *table;
(void)init;
bh_assert(singleton_engine);
if ((table = wasm_table_new_basic(store, table_type))) {
table->store = store;
}
return table;
}
wasm_table_t *
wasm_table_copy(const wasm_table_t *src)
{
wasm_table_t *table;
if (!(table = wasm_table_new_basic(src->store, src->type))) {
return NULL;
}
table->table_idx_rt = src->table_idx_rt;
table->inst_comm_rt = src->inst_comm_rt;
return table;
}
void
wasm_table_delete(wasm_table_t *table)
{
if (!table) {
return;
}
if (table->type) {
wasm_tabletype_delete(table->type);
table->type = NULL;
}
DELETE_HOST_INFO(table)
wasm_runtime_free(table);
}
wasm_tabletype_t *
wasm_table_type(const wasm_table_t *table)
{
if (!table) {
return NULL;
}
return wasm_tabletype_copy(table->type);
}
own wasm_ref_t *
wasm_table_get(const wasm_table_t *table, wasm_table_size_t index)
{
uint32 ref_idx = NULL_REF;
if (!table || !table->inst_comm_rt) {
return NULL;
}
#if WASM_ENABLE_INTERP != 0
if (table->inst_comm_rt->module_type == Wasm_Module_Bytecode) {
WASMTableInstance *table_interp =
((WASMModuleInstance *)table->inst_comm_rt)
->tables[table->table_idx_rt];
if (index >= table_interp->cur_size) {
return NULL;
}
ref_idx = table_interp->elems[index];
}
#endif
#if WASM_ENABLE_AOT != 0
if (table->inst_comm_rt->module_type == Wasm_Module_AoT) {
AOTModuleInstance *inst_aot = (AOTModuleInstance *)table->inst_comm_rt;
AOTTableInstance *table_aot = inst_aot->tables[table->table_idx_rt];
if (index >= table_aot->cur_size) {
return NULL;
}
ref_idx = table_aot->elems[index];
}
#endif
/*
* a wrong combination of module filetype and compilation flags
* also leads to below branch
*/
if (ref_idx == NULL_REF) {
return NULL;
}
#if WASM_ENABLE_REF_TYPES != 0
if (table->type->val_type->kind == WASM_ANYREF) {
void *externref_obj;
if (!wasm_externref_ref2obj(ref_idx, &externref_obj)) {
return NULL;
}
return externref_obj;
}
else
#endif
{
return wasm_ref_new_internal(table->store, WASM_REF_func, ref_idx,
table->inst_comm_rt);
}
}
bool
wasm_table_set(wasm_table_t *table, wasm_table_size_t index,
own wasm_ref_t *ref)
{
uint32 *p_ref_idx = NULL;
uint32 function_count = 0;
if (!table || !table->inst_comm_rt) {
return false;
}
if (ref
#if WASM_ENABLE_REF_TYPES != 0
&& !(WASM_REF_foreign == ref->kind
&& WASM_ANYREF == table->type->val_type->kind)
#endif
&& !(WASM_REF_func == ref->kind
&& WASM_FUNCREF == table->type->val_type->kind)) {
return false;
}
#if WASM_ENABLE_INTERP != 0
if (table->inst_comm_rt->module_type == Wasm_Module_Bytecode) {
WASMTableInstance *table_interp =
((WASMModuleInstance *)table->inst_comm_rt)
->tables[table->table_idx_rt];
if (index >= table_interp->cur_size) {
return false;
}
p_ref_idx = table_interp->elems + index;
function_count =
((WASMModuleInstance *)table->inst_comm_rt)->e->function_count;
}
#endif
#if WASM_ENABLE_AOT != 0
if (table->inst_comm_rt->module_type == Wasm_Module_AoT) {
AOTModuleInstance *inst_aot = (AOTModuleInstance *)table->inst_comm_rt;
AOTModule *module_aot = (AOTModule *)inst_aot->module;
AOTTableInstance *table_aot = inst_aot->tables[table->table_idx_rt];
if (index >= table_aot->cur_size) {
return false;
}
p_ref_idx = table_aot->elems + index;
function_count = module_aot->func_count;
}
#endif
/*
* a wrong combination of module filetype and compilation flags
* leads to below branch
*/
if (!p_ref_idx) {
return false;
}
#if WASM_ENABLE_REF_TYPES != 0
if (table->type->val_type->kind == WASM_ANYREF) {
return wasm_externref_obj2ref(table->inst_comm_rt, ref, p_ref_idx);
}
else
#endif
{
if (ref) {
if (NULL_REF != ref->ref_idx_rt) {
if (ref->ref_idx_rt >= function_count) {
return false;
}
}
*p_ref_idx = ref->ref_idx_rt;
wasm_ref_delete(ref);
}
else {
*p_ref_idx = NULL_REF;
}
}
return true;
}
wasm_table_size_t
wasm_table_size(const wasm_table_t *table)
{
if (!table || !table->inst_comm_rt) {
return 0;
}
#if WASM_ENABLE_INTERP != 0
if (table->inst_comm_rt->module_type == Wasm_Module_Bytecode) {
WASMTableInstance *table_interp =
((WASMModuleInstance *)table->inst_comm_rt)
->tables[table->table_idx_rt];
return table_interp->cur_size;
}
#endif
#if WASM_ENABLE_AOT != 0
if (table->inst_comm_rt->module_type == Wasm_Module_AoT) {
AOTModuleInstance *inst_aot = (AOTModuleInstance *)table->inst_comm_rt;
AOTModule *module_aot = (AOTModule *)inst_aot->module;
if (table->table_idx_rt < module_aot->import_table_count) {
AOTImportTable *table_aot =
module_aot->import_tables + table->table_idx_rt;
return table_aot->table_init_size;
}
else {
AOTTable *table_aot =
module_aot->tables
+ (table->table_idx_rt - module_aot->import_table_count);
return table_aot->table_init_size;
}
}
#endif
/*
* a wrong combination of module filetype and compilation flags
* leads to below branch
*/
return 0;
}
bool
wasm_table_grow(wasm_table_t *table, wasm_table_size_t delta,
own wasm_ref_t *init)
{
(void)table;
(void)delta;
(void)init;
LOG_WARNING("Calling wasm_table_grow() by host is not supported."
"Only allow growing a table via the opcode table.grow");
return false;
}
static wasm_memory_t *
wasm_memory_new_basic(wasm_store_t *store, const wasm_memorytype_t *type)
{
wasm_memory_t *memory = NULL;
if (!type) {
goto failed;
}
if (!(memory = malloc_internal(sizeof(wasm_memory_t)))) {
goto failed;
}
memory->store = store;
memory->kind = WASM_EXTERN_MEMORY;
memory->type = wasm_memorytype_copy(type);
RETURN_OBJ(memory, wasm_memory_delete)
}
wasm_memory_t *
wasm_memory_new(wasm_store_t *store, const wasm_memorytype_t *type)
{
bh_assert(singleton_engine);
return wasm_memory_new_basic(store, type);
}
wasm_memory_t *
wasm_memory_copy(const wasm_memory_t *src)
{
wasm_memory_t *dst = NULL;
if (!src) {
return NULL;
}
if (!(dst = wasm_memory_new_basic(src->store, src->type))) {
goto failed;
}
dst->memory_idx_rt = src->memory_idx_rt;
dst->inst_comm_rt = src->inst_comm_rt;
RETURN_OBJ(dst, wasm_memory_delete)
}
wasm_memory_t *
wasm_memory_new_internal(wasm_store_t *store, uint16 memory_idx_rt,
WASMModuleInstanceCommon *inst_comm_rt)
{
wasm_memory_t *memory = NULL;
uint32 min_pages = 0, max_pages = 0;
bool init_flag = false;
bh_assert(singleton_engine);
if (!inst_comm_rt) {
return NULL;
}
if (!(memory = malloc_internal(sizeof(wasm_memory_t)))) {
goto failed;
}
memory->store = store;
memory->kind = WASM_EXTERN_MEMORY;
#if WASM_ENABLE_INTERP != 0
if (inst_comm_rt->module_type == Wasm_Module_Bytecode) {
WASMMemoryInstance *memory_interp =
((WASMModuleInstance *)inst_comm_rt)->memories[memory_idx_rt];
min_pages = memory_interp->cur_page_count;
max_pages = memory_interp->max_page_count;
init_flag = true;
}
#endif
#if WASM_ENABLE_AOT != 0
if (inst_comm_rt->module_type == Wasm_Module_AoT) {
AOTModuleInstance *inst_aot = (AOTModuleInstance *)inst_comm_rt;
AOTModule *module_aot = (AOTModule *)inst_aot->module;
if (memory_idx_rt < module_aot->import_memory_count) {
min_pages = module_aot->import_memories->mem_init_page_count;
max_pages = module_aot->import_memories->mem_max_page_count;
}
else {
min_pages = module_aot->memories->mem_init_page_count;
max_pages = module_aot->memories->mem_max_page_count;
}
init_flag = true;
}
#endif
/*
* a wrong combination of module filetype and compilation flags
* leads to below branch
*/
if (!init_flag) {
goto failed;
}
if (!(memory->type = wasm_memorytype_new_internal(min_pages, max_pages))) {
goto failed;
}
memory->inst_comm_rt = inst_comm_rt;
memory->memory_idx_rt = memory_idx_rt;
RETURN_OBJ(memory, wasm_memory_delete);
}
void
wasm_memory_delete(wasm_memory_t *memory)
{
if (!memory) {
return;
}
if (memory->type) {
wasm_memorytype_delete(memory->type);
memory->type = NULL;
}
DELETE_HOST_INFO(memory)
wasm_runtime_free(memory);
}
wasm_memorytype_t *
wasm_memory_type(const wasm_memory_t *memory)
{
if (!memory) {
return NULL;
}
return wasm_memorytype_copy(memory->type);
}
byte_t *
wasm_memory_data(wasm_memory_t *memory)
{
WASMModuleInstanceCommon *module_inst_comm;
if (!memory || !memory->inst_comm_rt) {
return NULL;
}
module_inst_comm = memory->inst_comm_rt;
#if WASM_ENABLE_INTERP != 0
if (module_inst_comm->module_type == Wasm_Module_Bytecode) {
WASMModuleInstance *module_inst =
(WASMModuleInstance *)module_inst_comm;
WASMMemoryInstance *memory_inst =
module_inst->memories[memory->memory_idx_rt];
return (byte_t *)memory_inst->memory_data;
}
#endif
#if WASM_ENABLE_AOT != 0
if (module_inst_comm->module_type == Wasm_Module_AoT) {
AOTModuleInstance *module_inst = (AOTModuleInstance *)module_inst_comm;
AOTMemoryInstance *memory_inst =
((AOTMemoryInstance **)
module_inst->memories)[memory->memory_idx_rt];
return (byte_t *)memory_inst->memory_data;
}
#endif
/*
* a wrong combination of module filetype and compilation flags
* leads to below branch
*/
return NULL;
}
size_t
wasm_memory_data_size(const wasm_memory_t *memory)
{
WASMModuleInstanceCommon *module_inst_comm;
if (!memory || !memory->inst_comm_rt) {
return 0;
}
module_inst_comm = memory->inst_comm_rt;
#if WASM_ENABLE_INTERP != 0
if (module_inst_comm->module_type == Wasm_Module_Bytecode) {
WASMModuleInstance *module_inst =
(WASMModuleInstance *)module_inst_comm;
WASMMemoryInstance *memory_inst =
module_inst->memories[memory->memory_idx_rt];
return memory_inst->cur_page_count * memory_inst->num_bytes_per_page;
}
#endif
#if WASM_ENABLE_AOT != 0
if (module_inst_comm->module_type == Wasm_Module_AoT) {
AOTModuleInstance *module_inst = (AOTModuleInstance *)module_inst_comm;
AOTMemoryInstance *memory_inst =
((AOTMemoryInstance **)
module_inst->memories)[memory->memory_idx_rt];
return memory_inst->cur_page_count * memory_inst->num_bytes_per_page;
}
#endif
/*
* a wrong combination of module filetype and compilation flags
* leads to below branch
*/
return 0;
}
wasm_memory_pages_t
wasm_memory_size(const wasm_memory_t *memory)
{
WASMModuleInstanceCommon *module_inst_comm;
if (!memory || !memory->inst_comm_rt) {
return 0;
}
module_inst_comm = memory->inst_comm_rt;
#if WASM_ENABLE_INTERP != 0
if (module_inst_comm->module_type == Wasm_Module_Bytecode) {
WASMModuleInstance *module_inst =
(WASMModuleInstance *)module_inst_comm;
WASMMemoryInstance *memory_inst =
module_inst->memories[memory->memory_idx_rt];
return memory_inst->cur_page_count;
}
#endif
#if WASM_ENABLE_AOT != 0
if (module_inst_comm->module_type == Wasm_Module_AoT) {
AOTModuleInstance *module_inst = (AOTModuleInstance *)module_inst_comm;
AOTMemoryInstance *memory_inst =
((AOTMemoryInstance **)
module_inst->memories)[memory->memory_idx_rt];
return memory_inst->cur_page_count;
}
#endif
/*
* a wrong combination of module filetype and compilation flags
* leads to below branch
*/
return 0;
}
bool
wasm_memory_grow(wasm_memory_t *memory, wasm_memory_pages_t delta)
{
(void)memory;
(void)delta;
LOG_WARNING("Calling wasm_memory_grow() by host is not supported."
"Only allow growing a memory via the opcode memory.grow");
return false;
}
#if WASM_ENABLE_INTERP != 0
static bool
interp_link_func(const wasm_instance_t *inst, const WASMModule *module_interp,
uint16 func_idx_rt, wasm_func_t *import)
{
WASMImport *imported_func_interp = NULL;
bh_assert(inst && module_interp && import);
bh_assert(func_idx_rt < module_interp->import_function_count);
bh_assert(WASM_EXTERN_FUNC == import->kind);
imported_func_interp = module_interp->import_functions + func_idx_rt;
bh_assert(imported_func_interp);
/* type comparison */
if (!wasm_functype_same_internal(
import->type, imported_func_interp->u.function.func_type))
return false;
imported_func_interp->u.function.call_conv_wasm_c_api = true;
imported_func_interp->u.function.wasm_c_api_with_env = import->with_env;
if (import->with_env) {
imported_func_interp->u.function.func_ptr_linked = import->u.cb_env.cb;
imported_func_interp->u.function.attachment = import->u.cb_env.env;
}
else {
imported_func_interp->u.function.func_ptr_linked = import->u.cb;
imported_func_interp->u.function.attachment = NULL;
}
import->func_idx_rt = func_idx_rt;
return true;
}
static bool
interp_link_global(const WASMModule *module_interp, uint16 global_idx_rt,
wasm_global_t *import)
{
WASMImport *imported_global_interp = NULL;
bh_assert(module_interp && import);
bh_assert(global_idx_rt < module_interp->import_global_count);
bh_assert(WASM_EXTERN_GLOBAL == import->kind);
imported_global_interp = module_interp->import_globals + global_idx_rt;
bh_assert(imported_global_interp);
if (!cmp_val_kind_with_val_type(wasm_valtype_kind(import->type->val_type),
imported_global_interp->u.global.type))
return false;
/* set init value */
switch (wasm_valtype_kind(import->type->val_type)) {
case WASM_I32:
imported_global_interp->u.global.global_data_linked.i32 =
import->init->of.i32;
break;
case WASM_I64:
imported_global_interp->u.global.global_data_linked.i64 =
import->init->of.i64;
break;
case WASM_F32:
imported_global_interp->u.global.global_data_linked.f32 =
import->init->of.f32;
break;
case WASM_F64:
imported_global_interp->u.global.global_data_linked.f64 =
import->init->of.f64;
break;
default:
return false;
}
import->global_idx_rt = global_idx_rt;
imported_global_interp->u.global.is_linked = true;
return true;
}
static uint32
interp_link(const wasm_instance_t *inst, const WASMModule *module_interp,
wasm_extern_t *imports[])
{
uint32 i = 0;
uint32 import_func_i = 0;
uint32 import_global_i = 0;
bh_assert(inst && module_interp && imports);
for (i = 0; i < module_interp->import_count; ++i) {
wasm_extern_t *import = imports[i];
WASMImport *import_rt = module_interp->imports + i;
switch (import_rt->kind) {
case IMPORT_KIND_FUNC:
{
if (!interp_link_func(inst, module_interp, import_func_i,
wasm_extern_as_func(import))) {
LOG_WARNING("link #%d function failed", import_func_i);
goto failed;
}
import_func_i++;
break;
}
case IMPORT_KIND_GLOBAL:
{
if (!interp_link_global(module_interp, import_global_i,
wasm_extern_as_global(import))) {
LOG_WARNING("link #%d global failed", import_global_i);
goto failed;
}
import_global_i++;
break;
}
case IMPORT_KIND_MEMORY:
case IMPORT_KIND_TABLE:
default:
ASSERT_NOT_IMPLEMENTED();
LOG_WARNING("%s meets unsupported kind: %d", __FUNCTION__,
import_rt->kind);
goto failed;
}
}
return i;
failed:
LOG_DEBUG("%s failed", __FUNCTION__);
return (uint32)-1;
}
static bool
interp_process_export(wasm_store_t *store,
const WASMModuleInstance *inst_interp,
wasm_extern_vec_t *externals)
{
WASMExport *exports = NULL;
WASMExport *export = NULL;
wasm_extern_t *external = NULL;
uint32 export_cnt = 0;
uint32 i = 0;
bh_assert(store && inst_interp && inst_interp->module && externals);
exports = inst_interp->module->exports;
export_cnt = inst_interp->module->export_count;
for (i = 0; i < export_cnt; ++i) {
export = exports + i;
switch (export->kind) {
case EXPORT_KIND_FUNC:
{
wasm_func_t *func;
if (!(func = wasm_func_new_internal(
store, export->index,
(WASMModuleInstanceCommon *)inst_interp))) {
goto failed;
}
external = wasm_func_as_extern(func);
break;
}
case EXPORT_KIND_GLOBAL:
{
wasm_global_t *global;
if (!(global = wasm_global_new_internal(
store, export->index,
(WASMModuleInstanceCommon *)inst_interp))) {
goto failed;
}
external = wasm_global_as_extern(global);
break;
}
case EXPORT_KIND_TABLE:
{
wasm_table_t *table;
if (!(table = wasm_table_new_internal(
store, export->index,
(WASMModuleInstanceCommon *)inst_interp))) {
goto failed;
}
external = wasm_table_as_extern(table);
break;
}
case EXPORT_KIND_MEMORY:
{
wasm_memory_t *memory;
if (!(memory = wasm_memory_new_internal(
store, export->index,
(WASMModuleInstanceCommon *)inst_interp))) {
goto failed;
}
external = wasm_memory_as_extern(memory);
break;
}
default:
LOG_WARNING("%s meets unsupported kind: %d", __FUNCTION__,
export->kind);
goto failed;
}
if (!bh_vector_append((Vector *)externals, &external)) {
goto failed;
}
}
return true;
failed:
wasm_extern_delete(external);
return false;
}
#endif /* WASM_ENABLE_INTERP */
#if WASM_ENABLE_AOT != 0
static bool
aot_link_func(const wasm_instance_t *inst, const AOTModule *module_aot,
uint32 import_func_idx_rt, wasm_func_t *import)
{
AOTImportFunc *import_aot_func = NULL;
bh_assert(inst && module_aot && import);
import_aot_func = module_aot->import_funcs + import_func_idx_rt;
bh_assert(import_aot_func);
/* type comparison */
if (!wasm_functype_same_internal(import->type, import_aot_func->func_type))
return false;
import_aot_func->call_conv_wasm_c_api = true;
import_aot_func->wasm_c_api_with_env = import->with_env;
if (import->with_env) {
import_aot_func->func_ptr_linked = import->u.cb_env.cb;
import_aot_func->attachment = import->u.cb_env.env;
}
else {
import_aot_func->func_ptr_linked = import->u.cb;
import_aot_func->attachment = NULL;
}
import->func_idx_rt = import_func_idx_rt;
return true;
}
static bool
aot_link_global(const AOTModule *module_aot, uint16 global_idx_rt,
wasm_global_t *import)
{
AOTImportGlobal *import_aot_global = NULL;
const wasm_valtype_t *val_type = NULL;
bh_assert(module_aot && import);
import_aot_global = module_aot->import_globals + global_idx_rt;
bh_assert(import_aot_global);
val_type = wasm_globaltype_content(import->type);
bh_assert(val_type);
if (!cmp_val_kind_with_val_type(wasm_valtype_kind(val_type),
import_aot_global->type))
return false;
switch (wasm_valtype_kind(val_type)) {
case WASM_I32:
import_aot_global->global_data_linked.i32 = import->init->of.i32;
break;
case WASM_I64:
import_aot_global->global_data_linked.i64 = import->init->of.i64;
break;
case WASM_F32:
import_aot_global->global_data_linked.f32 = import->init->of.f32;
break;
case WASM_F64:
import_aot_global->global_data_linked.f64 = import->init->of.f64;
break;
default:
goto failed;
}
import->global_idx_rt = global_idx_rt;
return true;
failed:
LOG_DEBUG("%s failed", __FUNCTION__);
return false;
}
static uint32
aot_link(const wasm_instance_t *inst, const AOTModule *module_aot,
wasm_extern_t *imports[])
{
uint32 i = 0;
uint32 import_func_i = 0;
uint32 import_global_i = 0;
wasm_extern_t *import = NULL;
wasm_func_t *func = NULL;
wasm_global_t *global = NULL;
bh_assert(inst && module_aot && imports);
while (import_func_i < module_aot->import_func_count
|| import_global_i < module_aot->import_global_count) {
import = imports[i++];
bh_assert(import);
switch (wasm_extern_kind(import)) {
case WASM_EXTERN_FUNC:
bh_assert(import_func_i < module_aot->import_func_count);
func = wasm_extern_as_func((wasm_extern_t *)import);
if (!aot_link_func(inst, module_aot, import_func_i, func)) {
LOG_WARNING("link #%d function failed", import_func_i);
goto failed;
}
import_func_i++;
break;
case WASM_EXTERN_GLOBAL:
bh_assert(import_global_i < module_aot->import_global_count);
global = wasm_extern_as_global((wasm_extern_t *)import);
if (!aot_link_global(module_aot, import_global_i, global)) {
LOG_WARNING("link #%d global failed", import_global_i);
goto failed;
}
import_global_i++;
break;
case WASM_EXTERN_MEMORY:
case WASM_EXTERN_TABLE:
default:
ASSERT_NOT_IMPLEMENTED();
goto failed;
}
}
return i;
failed:
LOG_DEBUG("%s failed", __FUNCTION__);
return (uint32)-1;
}
static bool
aot_process_export(wasm_store_t *store, const AOTModuleInstance *inst_aot,
wasm_extern_vec_t *externals)
{
uint32 i;
wasm_extern_t *external = NULL;
AOTModule *module_aot = NULL;
bh_assert(store && inst_aot && externals);
module_aot = (AOTModule *)inst_aot->module;
bh_assert(module_aot);
for (i = 0; i < module_aot->export_count; ++i) {
AOTExport *export = module_aot->exports + i;
switch (export->kind) {
case EXPORT_KIND_FUNC:
{
wasm_func_t *func = NULL;
if (!(func = wasm_func_new_internal(
store, export->index,
(WASMModuleInstanceCommon *)inst_aot))) {
goto failed;
}
external = wasm_func_as_extern(func);
break;
}
case EXPORT_KIND_GLOBAL:
{
wasm_global_t *global = NULL;
if (!(global = wasm_global_new_internal(
store, export->index,
(WASMModuleInstanceCommon *)inst_aot))) {
goto failed;
}
external = wasm_global_as_extern(global);
break;
}
case EXPORT_KIND_TABLE:
{
wasm_table_t *table;
if (!(table = wasm_table_new_internal(
store, export->index,
(WASMModuleInstanceCommon *)inst_aot))) {
goto failed;
}
external = wasm_table_as_extern(table);
break;
}
case EXPORT_KIND_MEMORY:
{
wasm_memory_t *memory;
if (!(memory = wasm_memory_new_internal(
store, export->index,
(WASMModuleInstanceCommon *)inst_aot))) {
goto failed;
}
external = wasm_memory_as_extern(memory);
break;
}
default:
LOG_WARNING("%s meets unsupported kind: %d", __FUNCTION__,
export->kind);
goto failed;
}
if (!(external->name = malloc_internal(sizeof(wasm_byte_vec_t)))) {
goto failed;
}
wasm_name_new_from_string(external->name, export->name);
if (strlen(export->name) && !external->name->data) {
goto failed;
}
if (!bh_vector_append((Vector *)externals, &external)) {
goto failed;
}
}
return true;
failed:
wasm_extern_delete(external);
return false;
}
#endif /* WASM_ENABLE_AOT */
wasm_instance_t *
wasm_instance_new(wasm_store_t *store, const wasm_module_t *module,
const wasm_extern_vec_t *imports, own wasm_trap_t **traps)
{
return wasm_instance_new_with_args(store, module, imports, traps,
KILOBYTE(32), KILOBYTE(32));
}
wasm_instance_t *
wasm_instance_new_with_args(wasm_store_t *store, const wasm_module_t *module,
const wasm_extern_vec_t *imports,
own wasm_trap_t **traps, const uint32 stack_size,
const uint32 heap_size)
{
char error_buf[128] = { 0 };
uint32 import_count = 0;
bool import_count_verified = false;
wasm_instance_t *instance = NULL;
uint32 i = 0;
bool processed = false;
(void)traps;
bh_assert(singleton_engine);
if (!module) {
return NULL;
}
instance = malloc_internal(sizeof(wasm_instance_t));
if (!instance) {
goto failed;
}
/* link module and imports */
if (imports && imports->num_elems) {
#if WASM_ENABLE_INTERP != 0
if ((*module)->module_type == Wasm_Module_Bytecode) {
import_count = MODULE_INTERP(module)->import_count;
if (import_count) {
uint32 actual_link_import_count =
interp_link(instance, MODULE_INTERP(module),
(wasm_extern_t **)imports->data);
/* make sure a complete import list */
if ((int32)import_count < 0
|| import_count != actual_link_import_count) {
goto failed;
}
}
import_count_verified = true;
}
#endif
#if WASM_ENABLE_AOT != 0
if ((*module)->module_type == Wasm_Module_AoT) {
import_count = MODULE_AOT(module)->import_func_count
+ MODULE_AOT(module)->import_global_count
+ MODULE_AOT(module)->import_memory_count
+ MODULE_AOT(module)->import_table_count;
if (import_count) {
import_count = aot_link(instance, MODULE_AOT(module),
(wasm_extern_t **)imports->data);
if ((int32)import_count < 0) {
goto failed;
}
}
import_count_verified = true;
}
#endif
/*
* a wrong combination of module filetype and compilation flags
* also leads to below branch
*/
if (!import_count_verified) {
goto failed;
}
}
instance->inst_comm_rt = wasm_runtime_instantiate(
*module, stack_size, heap_size, error_buf, sizeof(error_buf));
if (!instance->inst_comm_rt) {
LOG_ERROR(error_buf);
goto failed;
}
if (!wasm_runtime_create_exec_env_singleton(instance->inst_comm_rt)) {
goto failed;
}
/* fill with inst */
for (i = 0; imports && imports->data && i < (uint32)import_count; ++i) {
wasm_extern_t *import = imports->data[i];
switch (import->kind) {
case WASM_EXTERN_FUNC:
wasm_extern_as_func(import)->inst_comm_rt =
instance->inst_comm_rt;
break;
case WASM_EXTERN_GLOBAL:
wasm_extern_as_global(import)->inst_comm_rt =
instance->inst_comm_rt;
break;
case WASM_EXTERN_MEMORY:
wasm_extern_as_memory(import)->inst_comm_rt =
instance->inst_comm_rt;
break;
case WASM_EXTERN_TABLE:
wasm_extern_as_table(import)->inst_comm_rt =
instance->inst_comm_rt;
break;
default:
goto failed;
}
}
/* build the exports list */
#if WASM_ENABLE_INTERP != 0
if (instance->inst_comm_rt->module_type == Wasm_Module_Bytecode) {
uint32 export_cnt = ((WASMModuleInstance *)instance->inst_comm_rt)
->module->export_count;
INIT_VEC(instance->exports, wasm_extern_vec_new_uninitialized,
export_cnt);
if (!interp_process_export(store,
(WASMModuleInstance *)instance->inst_comm_rt,
instance->exports)) {
goto failed;
}
processed = true;
}
#endif
#if WASM_ENABLE_AOT != 0
if (instance->inst_comm_rt->module_type == Wasm_Module_AoT) {
uint32 export_cnt =
((AOTModuleInstance *)instance->inst_comm_rt)->export_func_count
+ ((AOTModuleInstance *)instance->inst_comm_rt)->export_global_count
+ ((AOTModuleInstance *)instance->inst_comm_rt)->export_table_count
+ ((AOTModuleInstance *)instance->inst_comm_rt)
->export_memory_count;
INIT_VEC(instance->exports, wasm_extern_vec_new_uninitialized,
export_cnt);
if (!aot_process_export(store,
(AOTModuleInstance *)instance->inst_comm_rt,
instance->exports)) {
goto failed;
}
processed = true;
}
#endif
/*
* a wrong combination of module filetype and compilation flags
* leads to below branch
*/
if (!processed) {
goto failed;
}
/* add it to a watching list in store */
if (!bh_vector_append((Vector *)store->instances, &instance)) {
goto failed;
}
return instance;
failed:
LOG_DEBUG("%s failed", __FUNCTION__);
wasm_instance_delete_internal(instance);
return NULL;
}
static void
wasm_instance_delete_internal(wasm_instance_t *instance)
{
if (!instance) {
return;
}
DEINIT_VEC(instance->exports, wasm_extern_vec_delete);
if (instance->inst_comm_rt) {
wasm_runtime_deinstantiate(instance->inst_comm_rt);
instance->inst_comm_rt = NULL;
}
wasm_runtime_free(instance);
}
void
wasm_instance_delete(wasm_instance_t *inst)
{
DELETE_HOST_INFO(inst)
/* will release instance when releasing the store */
}
void
wasm_instance_exports(const wasm_instance_t *instance,
own wasm_extern_vec_t *out)
{
if (!instance || !out) {
return;
}
wasm_extern_vec_copy(out, instance->exports);
}
wasm_extern_t *
wasm_extern_copy(const wasm_extern_t *src)
{
wasm_extern_t *dst = NULL;
if (!src) {
return NULL;
}
switch (wasm_extern_kind(src)) {
case WASM_EXTERN_FUNC:
dst = wasm_func_as_extern(
wasm_func_copy(wasm_extern_as_func_const(src)));
break;
case WASM_EXTERN_GLOBAL:
dst = wasm_global_as_extern(
wasm_global_copy(wasm_extern_as_global_const(src)));
break;
case WASM_EXTERN_MEMORY:
dst = wasm_memory_as_extern(
wasm_memory_copy(wasm_extern_as_memory_const(src)));
break;
case WASM_EXTERN_TABLE:
dst = wasm_table_as_extern(
wasm_table_copy(wasm_extern_as_table_const(src)));
break;
default:
LOG_WARNING("%s meets unsupported kind: %d", __FUNCTION__,
src->kind);
break;
}
if (!dst) {
goto failed;
}
return dst;
failed:
LOG_DEBUG("%s failed", __FUNCTION__);
wasm_extern_delete(dst);
return NULL;
}
void
wasm_extern_delete(wasm_extern_t *external)
{
if (!external) {
return;
}
if (external->name) {
wasm_byte_vec_delete(external->name);
wasm_runtime_free(external->name);
external->name = NULL;
}
switch (wasm_extern_kind(external)) {
case WASM_EXTERN_FUNC:
wasm_func_delete(wasm_extern_as_func(external));
break;
case WASM_EXTERN_GLOBAL:
wasm_global_delete(wasm_extern_as_global(external));
break;
case WASM_EXTERN_MEMORY:
wasm_memory_delete(wasm_extern_as_memory(external));
break;
case WASM_EXTERN_TABLE:
wasm_table_delete(wasm_extern_as_table(external));
break;
default:
LOG_WARNING("%s meets unsupported kind: %d", __FUNCTION__,
external->kind);
break;
}
}
wasm_externkind_t
wasm_extern_kind(const wasm_extern_t *external)
{
if (!external) {
return WASM_ANYREF;
}
return external->kind;
}
own wasm_externtype_t *
wasm_extern_type(const wasm_extern_t *external)
{
if (!external) {
return NULL;
}
switch (wasm_extern_kind(external)) {
case WASM_EXTERN_FUNC:
return wasm_functype_as_externtype(
wasm_func_type(wasm_extern_as_func_const(external)));
case WASM_EXTERN_GLOBAL:
return wasm_globaltype_as_externtype(
wasm_global_type(wasm_extern_as_global_const(external)));
case WASM_EXTERN_MEMORY:
return wasm_memorytype_as_externtype(
wasm_memory_type(wasm_extern_as_memory_const(external)));
case WASM_EXTERN_TABLE:
return wasm_tabletype_as_externtype(
wasm_table_type(wasm_extern_as_table_const(external)));
default:
LOG_WARNING("%s meets unsupported kind: %d", __FUNCTION__,
external->kind);
break;
}
return NULL;
}
#define BASIC_FOUR_LIST(V) \
V(func) \
V(global) \
V(memory) \
V(table)
#define WASM_EXTERN_AS_OTHER(name) \
wasm_##name##_t *wasm_extern_as_##name(wasm_extern_t *external) \
{ \
return (wasm_##name##_t *)external; \
}
BASIC_FOUR_LIST(WASM_EXTERN_AS_OTHER)
#undef WASM_EXTERN_AS_OTHER
#define WASM_OTHER_AS_EXTERN(name) \
wasm_extern_t *wasm_##name##_as_extern(wasm_##name##_t *other) \
{ \
return (wasm_extern_t *)other; \
}
BASIC_FOUR_LIST(WASM_OTHER_AS_EXTERN)
#undef WASM_OTHER_AS_EXTERN
#define WASM_EXTERN_AS_OTHER_CONST(name) \
const wasm_##name##_t *wasm_extern_as_##name##_const( \
const wasm_extern_t *external) \
{ \
return (const wasm_##name##_t *)external; \
}
BASIC_FOUR_LIST(WASM_EXTERN_AS_OTHER_CONST)
#undef WASM_EXTERN_AS_OTHER_CONST
#define WASM_OTHER_AS_EXTERN_CONST(name) \
const wasm_extern_t *wasm_##name##_as_extern_const( \
const wasm_##name##_t *other) \
{ \
return (const wasm_extern_t *)other; \
}
BASIC_FOUR_LIST(WASM_OTHER_AS_EXTERN_CONST)
#undef WASM_OTHER_AS_EXTERN_CONST
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