692 lines
21 KiB
C
692 lines
21 KiB
C
/*
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* Copyright (C) 2019 Intel Corporation. All rights reserved.
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* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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*/
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#include "bh_platform.h"
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#if WASM_ENABLE_INTERP != 0
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#include "../interpreter/wasm_runtime.h"
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#endif
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#if WASM_ENABLE_AOT != 0
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#include "../aot/aot_runtime.h"
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#endif
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static void
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set_error_buf(char *error_buf, uint32 error_buf_size, const char *string)
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{
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if (error_buf != NULL)
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snprintf(error_buf, error_buf_size, "%s", string);
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}
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static void *
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runtime_malloc(uint64 size, WASMModuleInstanceCommon *module_inst,
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char *error_buf, uint32 error_buf_size)
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{
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void *mem;
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if (size >= UINT32_MAX || !(mem = wasm_runtime_malloc((uint32)size))) {
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if (module_inst != NULL) {
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wasm_runtime_set_exception(module_inst, "allocate memory failed");
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}
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else if (error_buf != NULL) {
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set_error_buf(error_buf, error_buf_size, "allocate memory failed");
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}
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return NULL;
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}
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memset(mem, 0, (uint32)size);
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return mem;
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}
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static union {
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int a;
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char b;
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} __ue = { .a = 1 };
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#define is_little_endian() (__ue.b == 1)
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/**
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* Implementation of wasm_application_execute_main()
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*/
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static bool
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check_main_func_type(const WASMType *type)
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{
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if (!(type->param_count == 0 || type->param_count == 2)
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|| type->result_count > 1) {
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LOG_ERROR(
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"WASM execute application failed: invalid main function type.\n");
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return false;
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}
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if (type->param_count == 2
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&& !(type->types[0] == VALUE_TYPE_I32
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&& type->types[1] == VALUE_TYPE_I32)) {
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LOG_ERROR(
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"WASM execute application failed: invalid main function type.\n");
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return false;
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}
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if (type->result_count
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&& type->types[type->param_count] != VALUE_TYPE_I32) {
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LOG_ERROR(
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"WASM execute application failed: invalid main function type.\n");
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return false;
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}
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return true;
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}
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bool
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wasm_application_execute_main(WASMModuleInstanceCommon *module_inst, int32 argc,
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char *argv[])
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{
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WASMFunctionInstanceCommon *func;
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WASMType *func_type = NULL;
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WASMExecEnv *exec_env = NULL;
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uint32 argc1 = 0, argv1[2] = { 0 };
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uint32 total_argv_size = 0;
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uint64 total_size;
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uint32 argv_buf_offset = 0;
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int32 i;
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char *argv_buf, *p, *p_end;
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uint32 *argv_offsets, module_type;
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bool ret, is_import_func = true;
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exec_env = wasm_runtime_get_exec_env_singleton(module_inst);
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if (!exec_env) {
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wasm_runtime_set_exception(module_inst,
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"create singleton exec_env failed");
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return false;
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}
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#if WASM_ENABLE_LIBC_WASI != 0
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/* In wasi mode, we should call the function named "_start"
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which initializes the wasi envrionment and then calls
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the actual main function. Directly calling main function
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may cause exception thrown. */
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if ((func = wasm_runtime_lookup_wasi_start_function(module_inst))) {
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#if WASM_ENABLE_DEBUG_INTERP != 0
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wasm_runtime_start_debug_instance(exec_env);
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#endif
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return wasm_runtime_call_wasm(exec_env, func, 0, NULL);
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}
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#endif /* end of WASM_ENABLE_LIBC_WASI */
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if (!(func = wasm_runtime_lookup_function(module_inst, "main", NULL))
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&& !(func = wasm_runtime_lookup_function(module_inst,
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"__main_argc_argv", NULL))
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&& !(func = wasm_runtime_lookup_function(module_inst, "_main", NULL))) {
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#if WASM_ENABLE_LIBC_WASI != 0
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wasm_runtime_set_exception(
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module_inst, "lookup the entry point symbol (like _start, main, "
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"_main, __main_argc_argv) failed");
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#else
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wasm_runtime_set_exception(module_inst,
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"lookup the entry point symbol (like main, "
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"_main, __main_argc_argv) failed");
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#endif
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return false;
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}
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#if WASM_ENABLE_INTERP != 0
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if (module_inst->module_type == Wasm_Module_Bytecode) {
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is_import_func = ((WASMFunctionInstance *)func)->is_import_func;
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}
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#endif
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#if WASM_ENABLE_AOT != 0
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if (module_inst->module_type == Wasm_Module_AoT) {
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is_import_func = ((AOTFunctionInstance *)func)->is_import_func;
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}
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#endif
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if (is_import_func) {
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wasm_runtime_set_exception(module_inst, "lookup main function failed");
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return false;
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}
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module_type = module_inst->module_type;
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func_type = wasm_runtime_get_function_type(func, module_type);
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if (!func_type) {
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LOG_ERROR("invalid module instance type");
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return false;
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}
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if (!check_main_func_type(func_type)) {
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wasm_runtime_set_exception(module_inst,
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"invalid function type of main function");
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return false;
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}
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if (func_type->param_count) {
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for (i = 0; i < argc; i++)
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total_argv_size += (uint32)(strlen(argv[i]) + 1);
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total_argv_size = align_uint(total_argv_size, 4);
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total_size = (uint64)total_argv_size + sizeof(int32) * (uint64)argc;
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if (total_size >= UINT32_MAX
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|| !(argv_buf_offset = wasm_runtime_module_malloc(
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module_inst, (uint32)total_size, (void **)&argv_buf))) {
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wasm_runtime_set_exception(module_inst, "allocate memory failed");
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return false;
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}
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p = argv_buf;
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argv_offsets = (uint32 *)(p + total_argv_size);
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p_end = p + total_size;
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for (i = 0; i < argc; i++) {
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bh_memcpy_s(p, (uint32)(p_end - p), argv[i],
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(uint32)(strlen(argv[i]) + 1));
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argv_offsets[i] = argv_buf_offset + (uint32)(p - argv_buf);
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p += strlen(argv[i]) + 1;
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}
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argc1 = 2;
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argv1[0] = (uint32)argc;
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argv1[1] =
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(uint32)wasm_runtime_addr_native_to_app(module_inst, argv_offsets);
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}
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#if WASM_ENABLE_DEBUG_INTERP != 0
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wasm_runtime_start_debug_instance(exec_env);
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#endif
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ret = wasm_runtime_call_wasm(exec_env, func, argc1, argv1);
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if (ret && func_type->result_count > 0 && argc > 0 && argv)
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/* copy the return value */
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*(int *)argv = (int)argv1[0];
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if (argv_buf_offset)
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wasm_runtime_module_free(module_inst, argv_buf_offset);
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return ret;
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}
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#if WASM_ENABLE_MULTI_MODULE != 0
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static WASMModuleInstance *
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get_sub_module_inst(const WASMModuleInstance *parent_module_inst,
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const char *sub_module_name)
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{
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WASMSubModInstNode *node =
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bh_list_first_elem(parent_module_inst->sub_module_inst_list);
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while (node && strcmp(node->module_name, sub_module_name)) {
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node = bh_list_elem_next(node);
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}
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return node ? node->module_inst : NULL;
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}
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static bool
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parse_function_name(char *orig_function_name, char **p_module_name,
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char **p_function_name)
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{
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if (orig_function_name[0] != '$') {
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*p_module_name = NULL;
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*p_function_name = orig_function_name;
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return true;
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}
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/**
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* $module_name$function_name\0
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* ===>
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* module_name\0function_name\0
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* ===>
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* module_name
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* function_name
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*/
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char *p1 = orig_function_name;
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char *p2 = strchr(p1 + 1, '$');
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if (!p2) {
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LOG_DEBUG("can not parse the incoming function name");
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return false;
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}
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*p_module_name = p1 + 1;
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*p2 = '\0';
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*p_function_name = p2 + 1;
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return strlen(*p_module_name) && strlen(*p_function_name);
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}
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#endif
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/**
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* Implementation of wasm_application_execute_func()
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*/
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static bool
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resolve_function(WASMModuleInstanceCommon *module_inst, const char *name,
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WASMFunctionInstanceCommon **out_func,
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WASMModuleInstanceCommon **out_module_inst)
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{
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WASMFunctionInstanceCommon *target_func = NULL;
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WASMModuleInstanceCommon *target_inst = NULL;
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#if WASM_ENABLE_MULTI_MODULE != 0
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char *function_name = NULL;
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char *orig_name = NULL;
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char *sub_module_name = NULL;
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uint32 length = (uint32)(strlen(name) + 1);
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orig_name = runtime_malloc(sizeof(char) * length, NULL, NULL, 0);
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if (!orig_name) {
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goto LEAVE;
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}
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strncpy(orig_name, name, length);
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if (!parse_function_name(orig_name, &sub_module_name, &function_name)) {
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goto LEAVE;
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}
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LOG_DEBUG("%s -> %s and %s", name, sub_module_name, function_name);
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if (sub_module_name) {
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target_inst = (WASMModuleInstanceCommon *)get_sub_module_inst(
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(WASMModuleInstance *)module_inst, sub_module_name);
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if (!target_inst) {
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LOG_DEBUG("can not find a sub module named %s", sub_module_name);
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goto LEAVE;
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}
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}
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else {
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target_inst = module_inst;
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}
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#else
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const char *function_name = name;
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target_inst = module_inst;
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#endif
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target_func =
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wasm_runtime_lookup_function(target_inst, function_name, NULL);
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#if WASM_ENABLE_MULTI_MODULE != 0
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LEAVE:
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if (orig_name)
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wasm_runtime_free(orig_name);
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#endif
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*out_func = target_func;
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*out_module_inst = target_inst;
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return target_func;
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}
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union ieee754_float {
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float f;
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/* This is the IEEE 754 single-precision format. */
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union {
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struct {
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unsigned int negative : 1;
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unsigned int exponent : 8;
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unsigned int mantissa : 23;
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} ieee_big_endian;
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struct {
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unsigned int mantissa : 23;
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unsigned int exponent : 8;
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unsigned int negative : 1;
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} ieee_little_endian;
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} ieee;
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};
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union ieee754_double {
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double d;
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/* This is the IEEE 754 double-precision format. */
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union {
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struct {
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unsigned int negative : 1;
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unsigned int exponent : 11;
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/* Together these comprise the mantissa. */
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unsigned int mantissa0 : 20;
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unsigned int mantissa1 : 32;
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} ieee_big_endian;
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struct {
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/* Together these comprise the mantissa. */
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unsigned int mantissa1 : 32;
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unsigned int mantissa0 : 20;
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unsigned int exponent : 11;
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unsigned int negative : 1;
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} ieee_little_endian;
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} ieee;
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};
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bool
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wasm_application_execute_func(WASMModuleInstanceCommon *module_inst,
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const char *name, int32 argc, char *argv[])
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{
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WASMFunctionInstanceCommon *target_func;
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WASMModuleInstanceCommon *target_inst;
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WASMType *type = NULL;
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WASMExecEnv *exec_env = NULL;
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uint32 argc1, *argv1 = NULL, cell_num = 0, j, k = 0;
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#if WASM_ENABLE_REF_TYPES != 0
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uint32 param_size_in_double_world = 0, result_size_in_double_world = 0;
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#endif
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int32 i, p, module_type;
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uint64 total_size;
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const char *exception;
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char buf[128];
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bh_assert(argc >= 0);
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LOG_DEBUG("call a function \"%s\" with %d arguments", name, argc);
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if (!resolve_function(module_inst, name, &target_func, &target_inst)) {
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snprintf(buf, sizeof(buf), "lookup function %s failed", name);
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wasm_runtime_set_exception(module_inst, buf);
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goto fail;
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}
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module_type = target_inst->module_type;
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type = wasm_runtime_get_function_type(target_func, module_type);
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if (!type) {
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LOG_ERROR("invalid module instance type");
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return false;
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}
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if (type->param_count != (uint32)argc) {
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wasm_runtime_set_exception(module_inst, "invalid input argument count");
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goto fail;
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}
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#if WASM_ENABLE_REF_TYPES != 0
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for (i = 0; i < type->param_count; i++) {
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param_size_in_double_world +=
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wasm_value_type_cell_num_outside(type->types[i]);
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}
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for (i = 0; i < type->result_count; i++) {
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result_size_in_double_world += wasm_value_type_cell_num_outside(
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type->types[type->param_count + i]);
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}
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argc1 = param_size_in_double_world;
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cell_num = (param_size_in_double_world >= result_size_in_double_world)
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? param_size_in_double_world
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: result_size_in_double_world;
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#else
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argc1 = type->param_cell_num;
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cell_num = (argc1 > type->ret_cell_num) ? argc1 : type->ret_cell_num;
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#endif
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total_size = sizeof(uint32) * (uint64)(cell_num > 2 ? cell_num : 2);
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if ((!(argv1 = runtime_malloc((uint32)total_size, target_inst, NULL, 0)))) {
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goto fail;
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}
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/* Parse arguments */
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for (i = 0, p = 0; i < argc; i++) {
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char *endptr = NULL;
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bh_assert(argv[i] != NULL);
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if (argv[i][0] == '\0') {
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snprintf(buf, sizeof(buf), "invalid input argument %" PRId32, i);
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wasm_runtime_set_exception(module_inst, buf);
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goto fail;
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}
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switch (type->types[i]) {
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case VALUE_TYPE_I32:
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argv1[p++] = (uint32)strtoul(argv[i], &endptr, 0);
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break;
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case VALUE_TYPE_I64:
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{
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union {
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uint64 val;
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uint32 parts[2];
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} u;
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u.val = strtoull(argv[i], &endptr, 0);
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argv1[p++] = u.parts[0];
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argv1[p++] = u.parts[1];
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break;
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}
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case VALUE_TYPE_F32:
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{
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float32 f32 = strtof(argv[i], &endptr);
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if (isnan(f32)) {
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if (argv[i][0] == '-') {
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union ieee754_float u;
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u.f = f32;
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if (is_little_endian())
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u.ieee.ieee_little_endian.negative = 1;
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else
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u.ieee.ieee_big_endian.negative = 1;
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memcpy(&f32, &u.f, sizeof(float));
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}
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if (endptr[0] == ':') {
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uint32 sig;
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union ieee754_float u;
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sig = (uint32)strtoul(endptr + 1, &endptr, 0);
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u.f = f32;
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if (is_little_endian())
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u.ieee.ieee_little_endian.mantissa = sig;
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else
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u.ieee.ieee_big_endian.mantissa = sig;
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memcpy(&f32, &u.f, sizeof(float));
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}
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}
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memcpy(&argv1[p++], &f32, sizeof(float));
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break;
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}
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case VALUE_TYPE_F64:
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{
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union {
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float64 val;
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uint32 parts[2];
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} u;
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u.val = strtod(argv[i], &endptr);
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if (isnan(u.val)) {
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if (argv[i][0] == '-') {
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union ieee754_double ud;
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ud.d = u.val;
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if (is_little_endian())
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ud.ieee.ieee_little_endian.negative = 1;
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else
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ud.ieee.ieee_big_endian.negative = 1;
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memcpy(&u.val, &ud.d, sizeof(double));
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}
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if (endptr[0] == ':') {
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uint64 sig;
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union ieee754_double ud;
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sig = strtoull(endptr + 1, &endptr, 0);
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ud.d = u.val;
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if (is_little_endian()) {
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ud.ieee.ieee_little_endian.mantissa0 = sig >> 32;
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ud.ieee.ieee_little_endian.mantissa1 = (uint32)sig;
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}
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else {
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ud.ieee.ieee_big_endian.mantissa0 = sig >> 32;
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ud.ieee.ieee_big_endian.mantissa1 = (uint32)sig;
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}
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memcpy(&u.val, &ud.d, sizeof(double));
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}
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}
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argv1[p++] = u.parts[0];
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argv1[p++] = u.parts[1];
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break;
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}
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#if WASM_ENABLE_SIMD != 0
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case VALUE_TYPE_V128:
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{
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/* it likes 0x123\0x234 or 123\234 */
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/* retrive first i64 */
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*(uint64 *)(argv1 + p) = strtoull(argv[i], &endptr, 0);
|
|
/* skip \ */
|
|
endptr++;
|
|
/* retrive second i64 */
|
|
*(uint64 *)(argv1 + p + 2) = strtoull(endptr, &endptr, 0);
|
|
p += 4;
|
|
break;
|
|
}
|
|
#endif /* WASM_ENABLE_SIMD != 0 */
|
|
#if WASM_ENABLE_REF_TYPES != 0
|
|
case VALUE_TYPE_FUNCREF:
|
|
{
|
|
if (strncasecmp(argv[i], "null", 4) == 0) {
|
|
argv1[p++] = (uint32)-1;
|
|
}
|
|
else {
|
|
argv1[p++] = (uint32)strtoul(argv[i], &endptr, 0);
|
|
}
|
|
break;
|
|
}
|
|
case VALUE_TYPE_EXTERNREF:
|
|
{
|
|
#if UINTPTR_MAX == UINT32_MAX
|
|
if (strncasecmp(argv[i], "null", 4) == 0) {
|
|
argv1[p++] = (uint32)-1;
|
|
}
|
|
else {
|
|
argv1[p++] = strtoul(argv[i], &endptr, 0);
|
|
}
|
|
#else
|
|
union {
|
|
uintptr_t val;
|
|
uint32 parts[2];
|
|
} u;
|
|
if (strncasecmp(argv[i], "null", 4) == 0) {
|
|
u.val = (uintptr_t)-1LL;
|
|
}
|
|
else {
|
|
u.val = strtoull(argv[i], &endptr, 0);
|
|
}
|
|
argv1[p++] = u.parts[0];
|
|
argv1[p++] = u.parts[1];
|
|
#endif
|
|
break;
|
|
}
|
|
#endif /* WASM_ENABLE_REF_TYPES */
|
|
default:
|
|
bh_assert(0);
|
|
break;
|
|
}
|
|
if (endptr && *endptr != '\0' && *endptr != '_') {
|
|
snprintf(buf, sizeof(buf), "invalid input argument %" PRId32 ": %s",
|
|
i, argv[i]);
|
|
wasm_runtime_set_exception(module_inst, buf);
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
wasm_runtime_set_exception(module_inst, NULL);
|
|
#if WASM_ENABLE_REF_TYPES == 0
|
|
bh_assert(p == (int32)argc1);
|
|
#endif
|
|
|
|
exec_env = wasm_runtime_get_exec_env_singleton(module_inst);
|
|
if (!exec_env) {
|
|
wasm_runtime_set_exception(module_inst,
|
|
"create singleton exec_env failed");
|
|
goto fail;
|
|
}
|
|
|
|
#if WASM_ENABLE_DEBUG_INTERP != 0
|
|
wasm_runtime_start_debug_instance(exec_env);
|
|
#endif
|
|
|
|
if (!wasm_runtime_call_wasm(exec_env, target_func, argc1, argv1)) {
|
|
goto fail;
|
|
}
|
|
|
|
/* print return value */
|
|
for (j = 0; j < type->result_count; j++) {
|
|
switch (type->types[type->param_count + j]) {
|
|
case VALUE_TYPE_I32:
|
|
{
|
|
os_printf("0x%" PRIx32 ":i32", argv1[k]);
|
|
k++;
|
|
break;
|
|
}
|
|
case VALUE_TYPE_I64:
|
|
{
|
|
union {
|
|
uint64 val;
|
|
uint32 parts[2];
|
|
} u;
|
|
u.parts[0] = argv1[k];
|
|
u.parts[1] = argv1[k + 1];
|
|
k += 2;
|
|
os_printf("0x%" PRIx64 ":i64", u.val);
|
|
break;
|
|
}
|
|
case VALUE_TYPE_F32:
|
|
{
|
|
os_printf("%.7g:f32", *(float32 *)(argv1 + k));
|
|
k++;
|
|
break;
|
|
}
|
|
case VALUE_TYPE_F64:
|
|
{
|
|
union {
|
|
float64 val;
|
|
uint32 parts[2];
|
|
} u;
|
|
u.parts[0] = argv1[k];
|
|
u.parts[1] = argv1[k + 1];
|
|
k += 2;
|
|
os_printf("%.7g:f64", u.val);
|
|
break;
|
|
}
|
|
#if WASM_ENABLE_REF_TYPES != 0
|
|
case VALUE_TYPE_FUNCREF:
|
|
{
|
|
if (argv1[k] != NULL_REF)
|
|
os_printf("%u:ref.func", argv1[k]);
|
|
else
|
|
os_printf("func:ref.null");
|
|
k++;
|
|
break;
|
|
}
|
|
case VALUE_TYPE_EXTERNREF:
|
|
{
|
|
#if UINTPTR_MAX == UINT32_MAX
|
|
if (argv1[k] != 0 && argv1[k] != (uint32)-1)
|
|
os_printf("%p:ref.extern", (void *)argv1[k]);
|
|
else
|
|
os_printf("extern:ref.null");
|
|
k++;
|
|
#else
|
|
union {
|
|
uintptr_t val;
|
|
uint32 parts[2];
|
|
} u;
|
|
u.parts[0] = argv1[k];
|
|
u.parts[1] = argv1[k + 1];
|
|
k += 2;
|
|
if (u.val && u.val != (uintptr_t)-1LL)
|
|
os_printf("%p:ref.extern", (void *)u.val);
|
|
else
|
|
os_printf("extern:ref.null");
|
|
#endif
|
|
break;
|
|
}
|
|
#endif
|
|
#if WASM_ENABLE_SIMD != 0
|
|
case VALUE_TYPE_V128:
|
|
{
|
|
uint64 *v = (uint64 *)(argv1 + k);
|
|
os_printf("<0x%016" PRIx64 " 0x%016" PRIx64 ">:v128", *v,
|
|
*(v + 1));
|
|
k += 4;
|
|
break;
|
|
}
|
|
#endif /* WASM_ENABLE_SIMD != 0 */
|
|
default:
|
|
bh_assert(0);
|
|
break;
|
|
}
|
|
if (j < (uint32)(type->result_count - 1))
|
|
os_printf(",");
|
|
}
|
|
os_printf("\n");
|
|
|
|
wasm_runtime_free(argv1);
|
|
return true;
|
|
|
|
fail:
|
|
if (argv1)
|
|
wasm_runtime_free(argv1);
|
|
|
|
exception = wasm_runtime_get_exception(module_inst);
|
|
bh_assert(exception);
|
|
os_printf("%s\n", exception);
|
|
return false;
|
|
}
|