go symbol 源码
golang symbol 代码
文件路径：/src/cmd/link/internal/sym/symbol.go
// Copyright 2017 The Go 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 sym
import (
"cmd/internal/obj"
"internal/buildcfg"
)
const (
SymVerABI0 = 0
SymVerABIInternal = 1
SymVerABICount = 2 // Number of internal ABIs
SymVerStatic = 10 // Minimum version used by static (file-local) syms
)
func ABIToVersion(abi obj.ABI) int {
switch abi {
case obj.ABI0:
return SymVerABI0
case obj.ABIInternal:
if !buildcfg.Experiment.RegabiWrappers {
// If wrappers are not enabled, ABI0 and ABIInternal are actually same
// so we normalize everything to ABI0.
return SymVerABI0
}
return SymVerABIInternal
}
return -1
}
func VersionToABI(v int) (obj.ABI, bool) {
switch v {
case SymVerABI0:
return obj.ABI0, true
case SymVerABIInternal:
return obj.ABIInternal, true
}
return ^obj.ABI(0), false
}
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