runtime.go raw

   1  /*
   2   * Copyright 2021 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 jit
  18  
  19  import (
  20      `reflect`
  21      `unsafe`
  22  
  23      `github.com/bytedance/sonic/internal/rt`
  24      `github.com/twitchyliquid64/golang-asm/obj`
  25  )
  26  
  27  func Func(f interface{}) obj.Addr {
  28      if p := rt.UnpackEface(f); p.Type.Kind() != reflect.Func {
  29          panic("f is not a function")
  30      } else {
  31          return Imm(*(*int64)(p.Value))
  32      }
  33  }
  34  
  35  func Type(t reflect.Type) obj.Addr {
  36      return Gtype(rt.UnpackType(t))
  37  }
  38  
  39  func Itab(i *rt.GoType, t reflect.Type) obj.Addr {
  40      return Imm(int64(uintptr(unsafe.Pointer(rt.GetItab(rt.IfaceType(i), rt.UnpackType(t), false)))))
  41  }
  42  
  43  func Gitab(i *rt.GoItab) obj.Addr {
  44      return Imm(int64(uintptr(unsafe.Pointer(i))))
  45  }
  46  
  47  func Gtype(t *rt.GoType) obj.Addr {
  48      return Imm(int64(uintptr(unsafe.Pointer(t))))
  49  }
  50