github.com/cloudwego/frugal@v0.1.15/internal/binary/decoder/linker_amd64.go (about)

     1  /*
     2   * Copyright 2022 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 decoder
    18  
    19  import (
    20      `unsafe`
    21  
    22      `github.com/cloudwego/frugal/internal/atm/hir`
    23      `github.com/cloudwego/frugal/internal/atm/pgen`
    24      `github.com/cloudwego/frugal/internal/loader`
    25  )
    26  
    27  type (
    28      LinkerAMD64 struct{}
    29  )
    30  
    31  const (
    32      _NativeStackSize = _stack__do_skip
    33  )
    34  
    35  func init() {
    36      SetLinker(new(LinkerAMD64))
    37  }
    38  
    39  func (LinkerAMD64) Link(p hir.Program) Decoder {
    40      fn := pgen.CreateCodeGen((Decoder)(nil)).Generate(p, _NativeStackSize)
    41      fp := loader.Loader(fn.Code).Load("decoder", fn.Frame)
    42      return *(*Decoder)(unsafe.Pointer(&fp))
    43  }