github.com/cloudwego/frugal@v0.1.15/internal/atm/abi/abi_arm64.go (about)

     1  /*
     2   * Copyright 2024 ByteDance Inc.
     3   *
     4   * Licensed under the Apache License, Version 2.0 (the "License");
     5   * you may not use this file except in compliance with the License.
     6   * You may obtain a copy of the License at
     7   *
     8   *     http://www.apache.org/licenses/LICENSE-2.0
     9   *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   * See the License for the specific language governing permissions and
    14   * limitations under the License.
    15   */
    16  
    17  package abi
    18  
    19  import (
    20  	`reflect`
    21  	`unsafe`
    22  
    23  	`github.com/cloudwego/frugal/internal/rt`
    24  )
    25  
    26  // NOTE: this file is temporary and is used only for emu on arm
    27  // TODO: delete this file after frugal supports arm
    28  
    29  type ARM64ABI struct {}
    30  
    31  func ArchCreateABI() *ARM64ABI {
    32  	return &ARM64ABI{}
    33  }
    34  
    35  func (self *ARM64ABI) RegisterMethod(id int, mt rt.Method) int {
    36  	return mt.Id
    37  }
    38  
    39  func (self *ARM64ABI) RegisterFunction(id int, fn interface{}) (fp unsafe.Pointer) {
    40  	vv := rt.UnpackEface(fn)
    41  	vt := vv.Type.Pack()
    42  
    43  	/* must be a function */
    44  	if vt.Kind() != reflect.Func {
    45  		panic("fn is not a function")
    46  	}
    47  
    48  	return *(*unsafe.Pointer)(vv.Value)
    49  }