diff options
Diffstat (limited to 'vendor/github.com/bytedance/sonic/loader/internal/abi/abi.go')
| -rw-r--r-- | vendor/github.com/bytedance/sonic/loader/internal/abi/abi.go | 197 |
1 files changed, 0 insertions, 197 deletions
diff --git a/vendor/github.com/bytedance/sonic/loader/internal/abi/abi.go b/vendor/github.com/bytedance/sonic/loader/internal/abi/abi.go deleted file mode 100644 index 524ab5330..000000000 --- a/vendor/github.com/bytedance/sonic/loader/internal/abi/abi.go +++ /dev/null @@ -1,197 +0,0 @@ -/* - * Copyright 2022 ByteDance Inc. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -package abi - -import ( - `fmt` - `reflect` - `sort` - `strings` - - `github.com/bytedance/sonic/loader/internal/rt` -) - -type FunctionLayout struct { - FP uint32 - Args []Parameter - Rets []Parameter -} - -func (self FunctionLayout) String() string { - return self.formatFn() -} - -func (self FunctionLayout) ArgSize() uint32 { - size := uintptr(0) - for _, arg := range self.Args { - size += arg.Type.Size() - } - return uint32(size) -} - -type slot struct { - p bool - m uint32 -} - -func (self FunctionLayout) StackMap() *rt.StackMap { - var st []slot - var mb rt.StackMapBuilder - - /* add arguments */ - for _, v := range self.Args { - st = append(st, slot { - m: v.Mem, - p: v.IsPointer, - }) - } - - /* add stack-passed return values */ - for _, v := range self.Rets { - if !v.InRegister { - st = append(st, slot { - m: v.Mem, - p: v.IsPointer, - }) - } - } - - /* sort by memory offset */ - sort.Slice(st, func(i int, j int) bool { - return st[i].m < st[j].m - }) - - /* add the bits */ - for _, v := range st { - mb.AddField(v.p) - } - - /* build the stack map */ - return mb.Build() -} - -func (self FunctionLayout) formatFn() string { - fp := self.FP - return fmt.Sprintf("\n%#04x\nRets:\n%s\nArgs:\n%s", fp, self.formatSeq(self.Rets, &fp), self.formatSeq(self.Args, &fp)) -} - -func (self FunctionLayout) formatSeq(v []Parameter, fp *uint32) string { - nb := len(v) - mm := make([]string, 0, len(v)) - - /* convert each part */ - for i := nb-1; i >=0; i-- { - *fp -= PtrSize - mm = append(mm, fmt.Sprintf("%#04x %s", *fp, v[i].String())) - } - - /* join them together */ - return strings.Join(mm, "\n") -} - -type Frame struct { - desc *FunctionLayout - locals []bool - ccall bool -} - -func NewFrame(desc *FunctionLayout, locals []bool, ccall bool) Frame { - fr := Frame{} - fr.desc = desc - fr.locals = locals - fr.ccall = ccall - return fr -} - -func (self *Frame) String() string { - out := self.desc.String() - - off := -8 - out += fmt.Sprintf("\n%#4x [Return PC]", off) - off -= 8 - out += fmt.Sprintf("\n%#4x [RBP]", off) - off -= 8 - - for _, v := range ReservedRegs(self.ccall) { - out += fmt.Sprintf("\n%#4x [%v]", off, v) - off -= PtrSize - } - - for _, b := range self.locals { - out += fmt.Sprintf("\n%#4x [%v]", off, b) - off -= PtrSize - } - - return out -} - -func (self *Frame) Prev() uint32 { - return self.Size() + PtrSize -} - -func (self *Frame) Size() uint32 { - return uint32(self.Offs() + PtrSize) -} - -func (self *Frame) Offs() uint32 { - return uint32(len(ReservedRegs(self.ccall)) * PtrSize + len(self.locals)*PtrSize) -} - -func (self *Frame) ArgPtrs() *rt.StackMap { - return self.desc.StackMap() -} - -func (self *Frame) LocalPtrs() *rt.StackMap { - var m rt.StackMapBuilder - for _, b := range self.locals { - m.AddFields(len(ReservedRegs(self.ccall)), b) - } - return m.Build() -} - -func alignUp(n uint32, a int) uint32 { - return (uint32(n) + uint32(a) - 1) &^ (uint32(a) - 1) -} - -func isPointer(vt reflect.Type) bool { - switch vt.Kind() { - case reflect.Bool : fallthrough - case reflect.Int : fallthrough - case reflect.Int8 : fallthrough - case reflect.Int16 : fallthrough - case reflect.Int32 : fallthrough - case reflect.Int64 : fallthrough - case reflect.Uint : fallthrough - case reflect.Uint8 : fallthrough - case reflect.Uint16 : fallthrough - case reflect.Uint32 : fallthrough - case reflect.Uint64 : fallthrough - case reflect.Float32 : fallthrough - case reflect.Float64 : fallthrough - case reflect.Uintptr : return false - case reflect.Chan : fallthrough - case reflect.Func : fallthrough - case reflect.Map : fallthrough - case reflect.Ptr : fallthrough - case reflect.UnsafePointer : return true - case reflect.Complex64 : fallthrough - case reflect.Complex128 : fallthrough - case reflect.Array : fallthrough - case reflect.Struct : panic("abi: unsupported types") - default : panic("abi: invalid value type") - } -}
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