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https://github.com/bytecodealliance/wasm-micro-runtime.git
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7c7684819d
In some scenarios there may be lots of callings to AOT/JIT functions from the host embedder, which expects good performance for the calling process, while in the current implementation, runtime calls the wasm_runtime_invoke_native to prepare the array of registers and stacks for the invokeNative assemble code, and the latter then puts the elements in the array to physical registers and native stacks and calls the AOT/JIT function, there may be many data copying and handlings which impact the performance. This PR registers some quick AOT/JIT entries for some simple wasm signatures, and let runtime call the entry to directly invoke the AOT/JIT function instead of calling wasm_runtime_invoke_native, which speedups the calling process. We may extend the mechanism next to allow the developer to register his quick AOT/JIT entries to speedup the calling process of invoking the AOT/JIT functions for some specific signatures.
117 lines
3.4 KiB
C
117 lines
3.4 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 char *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, *NativeSymbolsList;
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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 char *module_name, const char *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_unregister_natives(const char *module_name,
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NativeSymbol *native_symbols);
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#if WASM_ENABLE_MODULE_INST_CONTEXT != 0
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struct WASMModuleInstanceCommon;
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void *
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wasm_native_create_context_key(
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void (*dtor)(struct WASMModuleInstanceCommon *inst, void *ctx));
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void
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wasm_native_destroy_context_key(void *key);
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void
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wasm_native_set_context(struct WASMModuleInstanceCommon *inst, void *key,
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void *ctx);
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void
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wasm_native_set_context_spread(struct WASMModuleInstanceCommon *inst, void *key,
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void *ctx);
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void *
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wasm_native_get_context(struct WASMModuleInstanceCommon *inst, void *key);
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void
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wasm_native_call_context_dtors(struct WASMModuleInstanceCommon *inst);
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void
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wasm_native_inherit_contexts(struct WASMModuleInstanceCommon *child,
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struct WASMModuleInstanceCommon *parent);
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#else /* WASM_ENABLE_MODULE_INST_CONTEXT */
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#define wasm_native_call_context_dtors(inst) (void)(inst)
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#define wasm_native_inherit_contexts(child, parent) (void)(parent)
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#endif /* WASM_ENABLE_MODULE_INST_CONTEXT */
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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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#if WASM_ENABLE_QUICK_AOT_ENTRY != 0
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void *
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wasm_native_lookup_quick_aot_entry(const WASMType *func_type);
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#endif
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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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