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GoToSocial/vendor/modernc.org/gc/v3/abi.go

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// Copyright 2022 The Gc Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package gc // import "modernc.org/gc/v3"
import (
"encoding/binary"
"fmt"
)
var (
byteOrders = map[string]binary.ByteOrder{
"386": binary.LittleEndian,
"amd64": binary.LittleEndian,
"arm": binary.LittleEndian,
"arm64": binary.LittleEndian,
"ppc64le": binary.LittleEndian,
"riscv64": binary.LittleEndian,
"s390x": binary.BigEndian,
}
abiTypes = map[[2]string]map[Kind]ABIType{
// go1.19.1
{"freebsd", "386"}: {
Bool: {1, 1, 1},
Chan: {4, 4, 4},
Complex128: {16, 4, 4},
Complex64: {8, 4, 4},
Float32: {4, 4, 4},
Float64: {8, 4, 4},
Function: {4, 4, 4},
Int: {4, 4, 4},
Int16: {2, 2, 2},
Int32: {4, 4, 4},
Int64: {8, 4, 4},
Int8: {1, 1, 1},
Interface: {8, 4, 4},
Map: {4, 4, 4},
Pointer: {4, 4, 4},
Slice: {12, 4, 4},
String: {8, 4, 4},
Uint: {4, 4, 4},
Uint16: {2, 2, 2},
Uint32: {4, 4, 4},
Uint64: {8, 4, 4},
Uint8: {1, 1, 1},
Uintptr: {4, 4, 4},
UnsafePointer: {4, 4, 4},
},
// go1.19.1
{"freebsd", "amd64"}: {
Bool: {1, 1, 1},
Chan: {8, 8, 8},
Complex128: {16, 8, 8},
Complex64: {8, 4, 4},
Float32: {4, 4, 4},
Float64: {8, 8, 8},
Function: {8, 8, 8},
Int: {8, 8, 8},
Int16: {2, 2, 2},
Int32: {4, 4, 4},
Int64: {8, 8, 8},
Int8: {1, 1, 1},
Interface: {16, 8, 8},
Map: {8, 8, 8},
Pointer: {8, 8, 8},
Slice: {24, 8, 8},
String: {16, 8, 8},
Uint: {8, 8, 8},
Uint16: {2, 2, 2},
Uint32: {4, 4, 4},
Uint64: {8, 8, 8},
Uint8: {1, 1, 1},
Uintptr: {8, 8, 8},
UnsafePointer: {8, 8, 8},
},
// go1.18.5
{"freebsd", "arm"}: {
Bool: {1, 1, 1},
Chan: {4, 4, 4},
Complex128: {16, 4, 4},
Complex64: {8, 4, 4},
Float32: {4, 4, 4},
Float64: {8, 4, 4},
Function: {4, 4, 4},
Int: {4, 4, 4},
Int16: {2, 2, 2},
Int32: {4, 4, 4},
Int64: {8, 4, 4},
Int8: {1, 1, 1},
Interface: {8, 4, 4},
Map: {4, 4, 4},
Pointer: {4, 4, 4},
Slice: {12, 4, 4},
String: {8, 4, 4},
Uint: {4, 4, 4},
Uint16: {2, 2, 2},
Uint32: {4, 4, 4},
Uint64: {8, 4, 4},
Uint8: {1, 1, 1},
Uintptr: {4, 4, 4},
UnsafePointer: {4, 4, 4},
},
// go1.19
{"freebsd", "arm64"}: {
Bool: {1, 1, 1},
Chan: {8, 8, 8},
Complex128: {16, 8, 8},
Complex64: {8, 4, 4},
Float32: {4, 4, 4},
Float64: {8, 8, 8},
Function: {8, 8, 8},
Int: {8, 8, 8},
Int16: {2, 2, 2},
Int32: {4, 4, 4},
Int64: {8, 8, 8},
Int8: {1, 1, 1},
Interface: {16, 8, 8},
Map: {8, 8, 8},
Pointer: {8, 8, 8},
Slice: {24, 8, 8},
String: {16, 8, 8},
Uint: {8, 8, 8},
Uint16: {2, 2, 2},
Uint32: {4, 4, 4},
Uint64: {8, 8, 8},
Uint8: {1, 1, 1},
Uintptr: {8, 8, 8},
UnsafePointer: {8, 8, 8},
},
// go1.19.1
{"darwin", "amd64"}: {
Bool: {1, 1, 1},
Chan: {8, 8, 8},
Complex128: {16, 8, 8},
Complex64: {8, 4, 4},
Float32: {4, 4, 4},
Float64: {8, 8, 8},
Function: {8, 8, 8},
Int: {8, 8, 8},
Int16: {2, 2, 2},
Int32: {4, 4, 4},
Int64: {8, 8, 8},
Int8: {1, 1, 1},
Interface: {16, 8, 8},
Map: {8, 8, 8},
Pointer: {8, 8, 8},
Slice: {24, 8, 8},
String: {16, 8, 8},
Uint: {8, 8, 8},
Uint16: {2, 2, 2},
Uint32: {4, 4, 4},
Uint64: {8, 8, 8},
Uint8: {1, 1, 1},
Uintptr: {8, 8, 8},
UnsafePointer: {8, 8, 8},
},
// go1.19.1
{"darwin", "arm64"}: {
Bool: {1, 1, 1},
Chan: {8, 8, 8},
Complex128: {16, 8, 8},
Complex64: {8, 4, 4},
Float32: {4, 4, 4},
Float64: {8, 8, 8},
Function: {8, 8, 8},
Int: {8, 8, 8},
Int16: {2, 2, 2},
Int32: {4, 4, 4},
Int64: {8, 8, 8},
Int8: {1, 1, 1},
Interface: {16, 8, 8},
Map: {8, 8, 8},
Pointer: {8, 8, 8},
Slice: {24, 8, 8},
String: {16, 8, 8},
Uint: {8, 8, 8},
Uint16: {2, 2, 2},
Uint32: {4, 4, 4},
Uint64: {8, 8, 8},
Uint8: {1, 1, 1},
Uintptr: {8, 8, 8},
UnsafePointer: {8, 8, 8},
},
// go1.19.1
{"linux", "386"}: {
Bool: {1, 1, 1},
Chan: {4, 4, 4},
Complex128: {16, 4, 4},
Complex64: {8, 4, 4},
Float32: {4, 4, 4},
Float64: {8, 4, 4},
Function: {4, 4, 4},
Int: {4, 4, 4},
Int16: {2, 2, 2},
Int32: {4, 4, 4},
Int64: {8, 4, 4},
Int8: {1, 1, 1},
Interface: {8, 4, 4},
Map: {4, 4, 4},
Pointer: {4, 4, 4},
Slice: {12, 4, 4},
String: {8, 4, 4},
Uint: {4, 4, 4},
Uint16: {2, 2, 2},
Uint32: {4, 4, 4},
Uint64: {8, 4, 4},
Uint8: {1, 1, 1},
Uintptr: {4, 4, 4},
UnsafePointer: {4, 4, 4},
},
// go1.19.1
{"linux", "amd64"}: {
Bool: {1, 1, 1},
Chan: {8, 8, 8},
Complex128: {16, 8, 8},
Complex64: {8, 4, 4},
Float32: {4, 4, 4},
Float64: {8, 8, 8},
Function: {8, 8, 8},
Int: {8, 8, 8},
Int16: {2, 2, 2},
Int32: {4, 4, 4},
Int64: {8, 8, 8},
Int8: {1, 1, 1},
Interface: {16, 8, 8},
Map: {8, 8, 8},
Pointer: {8, 8, 8},
Slice: {24, 8, 8},
String: {16, 8, 8},
Uint: {8, 8, 8},
Uint16: {2, 2, 2},
Uint32: {4, 4, 4},
Uint64: {8, 8, 8},
Uint8: {1, 1, 1},
Uintptr: {8, 8, 8},
UnsafePointer: {8, 8, 8},
},
// go1.19.1
{"linux", "arm"}: {
Bool: {1, 1, 1},
Chan: {4, 4, 4},
Complex128: {16, 4, 4},
Complex64: {8, 4, 4},
Float32: {4, 4, 4},
Float64: {8, 4, 4},
Function: {4, 4, 4},
Int: {4, 4, 4},
Int16: {2, 2, 2},
Int32: {4, 4, 4},
Int64: {8, 4, 4},
Int8: {1, 1, 1},
Interface: {8, 4, 4},
Map: {4, 4, 4},
Pointer: {4, 4, 4},
Slice: {12, 4, 4},
String: {8, 4, 4},
Uint: {4, 4, 4},
Uint16: {2, 2, 2},
Uint32: {4, 4, 4},
Uint64: {8, 4, 4},
Uint8: {1, 1, 1},
Uintptr: {4, 4, 4},
UnsafePointer: {4, 4, 4},
},
// go1.19.1
{"linux", "arm64"}: {
Bool: {1, 1, 1},
Chan: {8, 8, 8},
Complex128: {16, 8, 8},
Complex64: {8, 4, 4},
Float32: {4, 4, 4},
Float64: {8, 8, 8},
Function: {8, 8, 8},
Int: {8, 8, 8},
Int16: {2, 2, 2},
Int32: {4, 4, 4},
Int64: {8, 8, 8},
Int8: {1, 1, 1},
Interface: {16, 8, 8},
Map: {8, 8, 8},
Pointer: {8, 8, 8},
Slice: {24, 8, 8},
String: {16, 8, 8},
Uint: {8, 8, 8},
Uint16: {2, 2, 2},
Uint32: {4, 4, 4},
Uint64: {8, 8, 8},
Uint8: {1, 1, 1},
Uintptr: {8, 8, 8},
UnsafePointer: {8, 8, 8},
},
// go1.19.1
{"linux", "s390x"}: {
Bool: {1, 1, 1},
Chan: {8, 8, 8},
Complex128: {16, 8, 8},
Complex64: {8, 4, 4},
Float32: {4, 4, 4},
Float64: {8, 8, 8},
Function: {8, 8, 8},
Int: {8, 8, 8},
Int16: {2, 2, 2},
Int32: {4, 4, 4},
Int64: {8, 8, 8},
Int8: {1, 1, 1},
Interface: {16, 8, 8},
Map: {8, 8, 8},
Pointer: {8, 8, 8},
Slice: {24, 8, 8},
String: {16, 8, 8},
Uint: {8, 8, 8},
Uint16: {2, 2, 2},
Uint32: {4, 4, 4},
Uint64: {8, 8, 8},
Uint8: {1, 1, 1},
Uintptr: {8, 8, 8},
UnsafePointer: {8, 8, 8},
},
// go1.19.1
{"linux", "ppc64le"}: {
Bool: {1, 1, 1},
Chan: {8, 8, 8},
Complex128: {16, 8, 8},
Complex64: {8, 4, 4},
Float32: {4, 4, 4},
Float64: {8, 8, 8},
Function: {8, 8, 8},
Int: {8, 8, 8},
Int16: {2, 2, 2},
Int32: {4, 4, 4},
Int64: {8, 8, 8},
Int8: {1, 1, 1},
Interface: {16, 8, 8},
Map: {8, 8, 8},
Pointer: {8, 8, 8},
Slice: {24, 8, 8},
String: {16, 8, 8},
Uint: {8, 8, 8},
Uint16: {2, 2, 2},
Uint32: {4, 4, 4},
Uint64: {8, 8, 8},
Uint8: {1, 1, 1},
Uintptr: {8, 8, 8},
UnsafePointer: {8, 8, 8},
},
// go1.19.1
{"linux", "riscv64"}: {
Bool: {1, 1, 1},
Chan: {8, 8, 8},
Complex128: {16, 8, 8},
Complex64: {8, 4, 4},
Float32: {4, 4, 4},
Float64: {8, 8, 8},
Function: {8, 8, 8},
Int: {8, 8, 8},
Int16: {2, 2, 2},
Int32: {4, 4, 4},
Int64: {8, 8, 8},
Int8: {1, 1, 1},
Interface: {16, 8, 8},
Map: {8, 8, 8},
Pointer: {8, 8, 8},
Slice: {24, 8, 8},
String: {16, 8, 8},
Uint: {8, 8, 8},
Uint16: {2, 2, 2},
Uint32: {4, 4, 4},
Uint64: {8, 8, 8},
Uint8: {1, 1, 1},
Uintptr: {8, 8, 8},
UnsafePointer: {8, 8, 8},
},
// go1.18.3
{"netbsd", "386"}: {
Bool: {1, 1, 1},
Chan: {4, 4, 4},
Complex128: {16, 4, 4},
Complex64: {8, 4, 4},
Float32: {4, 4, 4},
Float64: {8, 4, 4},
Function: {4, 4, 4},
Int: {4, 4, 4},
Int16: {2, 2, 2},
Int32: {4, 4, 4},
Int64: {8, 4, 4},
Int8: {1, 1, 1},
Interface: {8, 4, 4},
Map: {4, 4, 4},
Pointer: {4, 4, 4},
Slice: {12, 4, 4},
String: {8, 4, 4},
Uint: {4, 4, 4},
Uint16: {2, 2, 2},
Uint32: {4, 4, 4},
Uint64: {8, 4, 4},
Uint8: {1, 1, 1},
Uintptr: {4, 4, 4},
UnsafePointer: {4, 4, 4},
},
// go1.18.3
{"netbsd", "amd64"}: {
Bool: {1, 1, 1},
Chan: {8, 8, 8},
Complex128: {16, 8, 8},
Complex64: {8, 4, 4},
Float32: {4, 4, 4},
Float64: {8, 8, 8},
Function: {8, 8, 8},
Int: {8, 8, 8},
Int16: {2, 2, 2},
Int32: {4, 4, 4},
Int64: {8, 8, 8},
Int8: {1, 1, 1},
Interface: {16, 8, 8},
Map: {8, 8, 8},
Pointer: {8, 8, 8},
Slice: {24, 8, 8},
String: {16, 8, 8},
Uint: {8, 8, 8},
Uint16: {2, 2, 2},
Uint32: {4, 4, 4},
Uint64: {8, 8, 8},
Uint8: {1, 1, 1},
Uintptr: {8, 8, 8},
UnsafePointer: {8, 8, 8},
},
// go1.18.3
{"netbsd", "arm"}: {
Bool: {1, 1, 1},
Chan: {4, 4, 4},
Complex128: {16, 4, 4},
Complex64: {8, 4, 4},
Float32: {4, 4, 4},
Float64: {8, 4, 4},
Function: {4, 4, 4},
Int: {4, 4, 4},
Int16: {2, 2, 2},
Int32: {4, 4, 4},
Int64: {8, 4, 4},
Int8: {1, 1, 1},
Interface: {8, 4, 4},
Map: {4, 4, 4},
Pointer: {4, 4, 4},
Slice: {12, 4, 4},
String: {8, 4, 4},
Uint: {4, 4, 4},
Uint16: {2, 2, 2},
Uint32: {4, 4, 4},
Uint64: {8, 4, 4},
Uint8: {1, 1, 1},
Uintptr: {4, 4, 4},
UnsafePointer: {4, 4, 4},
},
// go1.19
{"openbsd", "amd64"}: {
Bool: {1, 1, 1},
Chan: {8, 8, 8},
Complex128: {16, 8, 8},
Complex64: {8, 4, 4},
Float32: {4, 4, 4},
Float64: {8, 8, 8},
Function: {8, 8, 8},
Int: {8, 8, 8},
Int16: {2, 2, 2},
Int32: {4, 4, 4},
Int64: {8, 8, 8},
Int8: {1, 1, 1},
Interface: {16, 8, 8},
Map: {8, 8, 8},
Pointer: {8, 8, 8},
Slice: {24, 8, 8},
String: {16, 8, 8},
Uint: {8, 8, 8},
Uint16: {2, 2, 2},
Uint32: {4, 4, 4},
Uint64: {8, 8, 8},
Uint8: {1, 1, 1},
Uintptr: {8, 8, 8},
UnsafePointer: {8, 8, 8},
},
// go1.19
{"openbsd", "arm64"}: {
Bool: {1, 1, 1},
Chan: {8, 8, 8},
Complex128: {16, 8, 8},
Complex64: {8, 4, 4},
Float32: {4, 4, 4},
Float64: {8, 8, 8},
Function: {8, 8, 8},
Int: {8, 8, 8},
Int16: {2, 2, 2},
Int32: {4, 4, 4},
Int64: {8, 8, 8},
Int8: {1, 1, 1},
Interface: {16, 8, 8},
Map: {8, 8, 8},
Pointer: {8, 8, 8},
Slice: {24, 8, 8},
String: {16, 8, 8},
Uint: {8, 8, 8},
Uint16: {2, 2, 2},
Uint32: {4, 4, 4},
Uint64: {8, 8, 8},
Uint8: {1, 1, 1},
Uintptr: {8, 8, 8},
UnsafePointer: {8, 8, 8},
},
// go1.19
{"openbsd", "386"}: {
Bool: {1, 1, 1},
Chan: {4, 4, 4},
Complex128: {16, 4, 4},
Complex64: {8, 4, 4},
Float32: {4, 4, 4},
Float64: {8, 4, 4},
Function: {4, 4, 4},
Int: {4, 4, 4},
Int16: {2, 2, 2},
Int32: {4, 4, 4},
Int64: {8, 4, 4},
Int8: {1, 1, 1},
Interface: {8, 4, 4},
Map: {4, 4, 4},
Pointer: {4, 4, 4},
Slice: {12, 4, 4},
String: {8, 4, 4},
Uint: {4, 4, 4},
Uint16: {2, 2, 2},
Uint32: {4, 4, 4},
Uint64: {8, 4, 4},
Uint8: {1, 1, 1},
Uintptr: {4, 4, 4},
UnsafePointer: {4, 4, 4},
},
// go1.19.1
{"windows", "386"}: {
Bool: {1, 1, 1},
Chan: {4, 4, 4},
Complex128: {16, 4, 4},
Complex64: {8, 4, 4},
Float32: {4, 4, 4},
Float64: {8, 4, 4},
Function: {4, 4, 4},
Int: {4, 4, 4},
Int16: {2, 2, 2},
Int32: {4, 4, 4},
Int64: {8, 4, 4},
Int8: {1, 1, 1},
Interface: {8, 4, 4},
Map: {4, 4, 4},
Pointer: {4, 4, 4},
Slice: {12, 4, 4},
String: {8, 4, 4},
Uint: {4, 4, 4},
Uint16: {2, 2, 2},
Uint32: {4, 4, 4},
Uint64: {8, 4, 4},
Uint8: {1, 1, 1},
Uintptr: {4, 4, 4},
UnsafePointer: {4, 4, 4},
},
// go1.19.1
{"windows", "amd64"}: {
Bool: {1, 1, 1},
Chan: {8, 8, 8},
Complex128: {16, 8, 8},
Complex64: {8, 4, 4},
Float32: {4, 4, 4},
Float64: {8, 8, 8},
Function: {8, 8, 8},
Int: {8, 8, 8},
Int16: {2, 2, 2},
Int32: {4, 4, 4},
Int64: {8, 8, 8},
Int8: {1, 1, 1},
Interface: {16, 8, 8},
Map: {8, 8, 8},
Pointer: {8, 8, 8},
Slice: {24, 8, 8},
String: {16, 8, 8},
Uint: {8, 8, 8},
Uint16: {2, 2, 2},
Uint32: {4, 4, 4},
Uint64: {8, 8, 8},
Uint8: {1, 1, 1},
Uintptr: {8, 8, 8},
UnsafePointer: {8, 8, 8},
},
// go1.19.1
{"windows", "arm64"}: {
Bool: {1, 1, 1},
Chan: {8, 8, 8},
Complex128: {16, 8, 8},
Complex64: {8, 4, 4},
Float32: {4, 4, 4},
Float64: {8, 8, 8},
Function: {8, 8, 8},
Int: {8, 8, 8},
Int16: {2, 2, 2},
Int32: {4, 4, 4},
Int64: {8, 8, 8},
Int8: {1, 1, 1},
Interface: {16, 8, 8},
Map: {8, 8, 8},
Pointer: {8, 8, 8},
Slice: {24, 8, 8},
String: {16, 8, 8},
Uint: {8, 8, 8},
Uint16: {2, 2, 2},
Uint32: {4, 4, 4},
Uint64: {8, 8, 8},
Uint8: {1, 1, 1},
Uintptr: {8, 8, 8},
UnsafePointer: {8, 8, 8},
},
// go1.19.3
{"illumos", "amd64"}: {
Bool: {1, 1, 1},
Chan: {8, 8, 8},
Complex128: {16, 8, 8},
Complex64: {8, 4, 4},
Float32: {4, 4, 4},
Float64: {8, 8, 8},
Function: {8, 8, 8},
Int: {8, 8, 8},
Int16: {2, 2, 2},
Int32: {4, 4, 4},
Int64: {8, 8, 8},
Int8: {1, 1, 1},
Interface: {16, 8, 8},
Map: {8, 8, 8},
Pointer: {8, 8, 8},
Slice: {24, 8, 8},
String: {16, 8, 8},
Uint: {8, 8, 8},
Uint16: {2, 2, 2},
Uint32: {4, 4, 4},
Uint64: {8, 8, 8},
Uint8: {1, 1, 1},
Uintptr: {8, 8, 8},
UnsafePointer: {8, 8, 8},
},
}
)
// ABI describes selected parts of the Application Binary Interface.
type ABI struct {
ByteOrder binary.ByteOrder
goarch string
goos string
Types map[Kind]ABIType
}
type ABIType struct {
Size int64
Align int64
FieldAlign int64
}
// NewABI creates an ABI based on the os+arch pair.
func NewABI(os, arch string) (*ABI, error) {
byteOrder, ok := byteOrders[arch]
if !ok {
return nil, fmt.Errorf("unsupported arch: %s", arch)
}
types0, ok := abiTypes[[2]string{os, arch}]
if !ok {
return nil, fmt.Errorf("unsupported os/arch: %s/%s", os, arch)
}
types := make(map[Kind]ABIType, len(types0))
for k, v := range types0 {
types[k] = v
}
return &ABI{
ByteOrder: byteOrder,
Types: types,
}, nil
}
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