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be2b561935
By this patch, an experimental shared-everything modules linking is supported, typically user could use the feature to dlopen a wasm/aot module, then get the funcref by dlsym, and call the target function by call indirect instr. Of course, a dlclose is supported too. Currently, root module could be a regular module, wasi module, or AssemblyScript module; dependency module MUST be a module built followed the proposal "dynamical linking", that means it should contain a new dylink section and no mem allocator function exported. User could get it by clang or emcc. New iwasm switch --enable-dopen is used for enabling the feature and choosing the launch mode. see the iwasm -h for details. Multiple modules feature is not well tested, there should be some cases not covered. Co-authored-by: jhe <hejie.he@antgroup.com>
82 lines
2.4 KiB
C
82 lines
2.4 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_NATIVE_H
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#define _WASM_NATIVE_H
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#include "bh_common.h"
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#include "../include/wasm_export.h"
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#include "../interpreter/wasm.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct NativeSymbolsNode {
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//struct NativeSymbolsNode *next;
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const ConstStrDescription *module_name;
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NativeSymbol *native_symbols;
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uint32 n_native_symbols;
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bool call_conv_raw;
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} NativeSymbolsNode, *NativeSymbolsVec;
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/**
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* Lookup global variable of a given import global
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* from libc builtin globals
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*
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* @param module_name the module name of the import global
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* @param global_name the global name of the import global
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* @param global return the global data
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*
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* @param true if success, false otherwise
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*/
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bool
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wasm_native_lookup_libc_builtin_global(const char *module_name,
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const char *global_name,
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WASMGlobalImport *global);
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/**
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* Resolve native symbol in all libraries, including libc-builtin, libc-wasi,
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* base lib and extension lib, and user registered natives
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* function, which can be auto checked by vm before calling native function
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*
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* @param module_name the module name of the import function
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* @param func_name the function name of the import function
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* @param func_type the function prototype of the import function
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* @param p_signature output the signature if resolve success
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*
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* @return the native function pointer if success, NULL otherwise
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*/
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void *
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wasm_native_resolve_symbol(const ConstStrDescription *module_name,
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const ConstStrDescription ** p_field_name,
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const WASMType *func_type, const char **p_signature,
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void **p_attachment, bool *p_call_conv_raw);
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bool
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wasm_native_register_natives(const char *module_name,
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NativeSymbol *native_symbols,
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uint32 n_native_symbols);
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bool
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wasm_native_register_natives_raw(const char *module_name,
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NativeSymbol *native_symbols,
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uint32 n_native_symbols);
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bool
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wasm_native_init();
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void
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wasm_native_destroy();
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bool
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check_symbol_signature(const WASMType *type, const char *signature);
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#ifdef __cplusplus
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}
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#endif
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#endif /* end of _WASM_NATIVE_H */
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