0d3f304191
Modified WASM runtime API: - wasm_runtime_module_malloc() - wasm_runtime_lookup_function() Introduced runtime API - wasm_runtime_register_natives()
276 lines
7.3 KiB
C
276 lines
7.3 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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#ifndef _WASM_RUNTIME_H
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#define _WASM_RUNTIME_H
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#include "wasm.h"
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#include "bh_hashmap.h"
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#include "../common/wasm_runtime_common.h"
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#include "../common/wasm_exec_env.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct WASMMemoryInstance {
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/* Number bytes per page */
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uint32 num_bytes_per_page;
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/* Current page count */
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uint32 cur_page_count;
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/* Maximum page count */
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uint32 max_page_count;
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/* Heap data base address */
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uint8 *heap_data;
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/* Heap data end address */
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uint8 *heap_data_end;
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/* The heap created */
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void *heap_handle;
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/* Heap base offset of wasm app */
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int32 heap_base_offset;
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/* Memory data */
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uint8 *memory_data;
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/* Global data of global instances */
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uint8 *global_data;
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uint32 global_data_size;
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/* End address of memory */
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uint8 *end_addr;
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/* Base address, the layout is:
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thunk_argv data + thunk arg offsets +
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memory data + global data
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memory data init size is: num_bytes_per_page * cur_page_count
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global data size is calculated in module instantiating
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Note: when memory is re-allocated, the thunk argv data, thunk
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argv offsets and memory data must be copied to new memory also.
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*/
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uint8 base_addr[1];
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} WASMMemoryInstance;
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typedef struct WASMTableInstance {
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/* The element type, TABLE_ELEM_TYPE_ANY_FUNC currently */
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uint8 elem_type;
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/* Current size */
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uint32 cur_size;
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/* Maximum size */
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uint32 max_size;
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/* Base address */
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uint8 base_addr[1];
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} WASMTableInstance;
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typedef struct WASMGlobalInstance {
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/* value type, VALUE_TYPE_I32/I64/F32/F64 */
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uint8 type;
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/* mutable or constant */
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bool is_mutable;
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/* data offset to base_addr of WASMMemoryInstance */
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uint32 data_offset;
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/* initial value */
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WASMValue initial_value;
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} WASMGlobalInstance;
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typedef struct WASMFunctionInstance {
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/* whether it is import function or WASM function */
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bool is_import_func;
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/* parameter count */
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uint16 param_count;
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/* local variable count, 0 for import function */
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uint16 local_count;
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/* cell num of parameters */
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uint16 param_cell_num;
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/* cell num of return type */
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uint16 ret_cell_num;
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/* cell num of local variables, 0 for import function */
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uint16 local_cell_num;
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uint16 *local_offsets;
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/* parameter types */
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uint8 *param_types;
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/* local types, NULL for import function */
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uint8 *local_types;
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union {
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WASMFunctionImport *func_import;
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WASMFunction *func;
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} u;
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} WASMFunctionInstance;
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typedef struct WASMExportFuncInstance {
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char *name;
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WASMFunctionInstance *function;
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} WASMExportFuncInstance;
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typedef struct WASMModuleInstance {
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/* Module instance type, for module instance loaded from
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WASM bytecode binary, this field is Wasm_Module_Bytecode;
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for module instance loaded from AOT file, this field is
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Wasm_Module_AoT, and this structure should be treated as
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AOTModuleInstance structure. */
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uint32 module_type;
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uint32 memory_count;
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uint32 table_count;
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uint32 global_count;
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uint32 function_count;
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uint32 export_func_count;
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WASMMemoryInstance **memories;
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WASMTableInstance **tables;
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WASMGlobalInstance *globals;
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WASMFunctionInstance *functions;
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WASMExportFuncInstance *export_functions;
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WASMMemoryInstance *default_memory;
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WASMTableInstance *default_table;
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WASMFunctionInstance *start_function;
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WASMModule *module;
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#if WASM_ENABLE_LIBC_WASI != 0
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WASIContext *wasi_ctx;
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#endif
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uint32 DYNAMICTOP_PTR_offset;
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uint32 temp_ret;
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uint32 llvm_stack;
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/* Default WASM stack size of threads of this Module instance. */
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uint32 default_wasm_stack_size;
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/* The exception buffer of wasm interpreter for current thread. */
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char cur_exception[128];
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/* The custom data that can be set/get by
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* wasm_set_custom_data/wasm_get_custom_data */
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void *custom_data;
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/* Main exec env */
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WASMExecEnv *main_exec_env;
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} WASMModuleInstance;
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struct WASMInterpFrame;
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typedef struct WASMInterpFrame WASMRuntimeFrame;
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/**
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* Return the code block of a function.
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*
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* @param func the WASM function instance
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*
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* @return the code block of the function
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*/
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static inline uint8*
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wasm_get_func_code(WASMFunctionInstance *func)
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{
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return func->is_import_func ? NULL : func->u.func->code;
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}
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/**
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* Return the code block end of a function.
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*
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* @param func the WASM function instance
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*
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* @return the code block end of the function
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*/
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static inline uint8*
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wasm_get_func_code_end(WASMFunctionInstance *func)
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{
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return func->is_import_func
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? NULL : func->u.func->code + func->u.func->code_size;
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}
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WASMModule *
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wasm_load(const uint8 *buf, uint32 size,
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char *error_buf, uint32 error_buf_size);
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WASMModule *
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wasm_load_from_sections(WASMSection *section_list,
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char *error_buf, uint32_t error_buf_size);
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void
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wasm_unload(WASMModule *module);
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WASMModuleInstance *
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wasm_instantiate(WASMModule *module,
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uint32 stack_size, uint32 heap_size,
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char *error_buf, uint32 error_buf_size);
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void
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wasm_deinstantiate(WASMModuleInstance *module_inst);
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WASMFunctionInstance *
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wasm_lookup_function(const WASMModuleInstance *module_inst,
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const char *name, const char *signature);
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bool
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wasm_call_function(WASMExecEnv *exec_env,
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WASMFunctionInstance *function,
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unsigned argc, uint32 argv[]);
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bool
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wasm_create_exec_env_and_call_function(WASMModuleInstance *module_inst,
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WASMFunctionInstance *function,
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unsigned argc, uint32 argv[]);
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void
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wasm_set_exception(WASMModuleInstance *module, const char *exception);
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const char*
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wasm_get_exception(WASMModuleInstance *module);
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int32
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wasm_module_malloc(WASMModuleInstance *module_inst, uint32 size,
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void **p_native_addr);
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void
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wasm_module_free(WASMModuleInstance *module_inst, int32 ptr);
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int32
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wasm_module_dup_data(WASMModuleInstance *module_inst,
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const char *src, uint32 size);
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bool
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wasm_validate_app_addr(WASMModuleInstance *module_inst,
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int32 app_offset, uint32 size);
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bool
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wasm_validate_app_str_addr(WASMModuleInstance *module_inst,
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int32 app_offset);
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bool
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wasm_validate_native_addr(WASMModuleInstance *module_inst,
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void *native_ptr, uint32 size);
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void *
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wasm_addr_app_to_native(WASMModuleInstance *module_inst,
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int32 app_offset);
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int32
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wasm_addr_native_to_app(WASMModuleInstance *module_inst,
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void *native_ptr);
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bool
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wasm_get_app_addr_range(WASMModuleInstance *module_inst,
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int32 app_offset,
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int32 *p_app_start_offset,
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int32 *p_app_end_offset);
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bool
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wasm_get_native_addr_range(WASMModuleInstance *module_inst,
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uint8_t *native_ptr,
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uint8_t **p_native_start_addr,
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uint8_t **p_native_end_addr);
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bool
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wasm_enlarge_memory(WASMModuleInstance *module, uint32 inc_page_count);
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#ifdef __cplusplus
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}
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#endif
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#endif /* end of _WASM_RUNTIME_H */
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