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cmd/link: remove ABI aliases

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Change-Id: I59f68b324af706476695de2f291dd3aa5734e192
Reviewed-on: https://go-review.googlesource.com/c/go/+/351332
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
This commit is contained in:
Cherry Mui 2021-09-21 17:52:19 -04:00
parent a630783ba0
commit 55d22f7490
16 changed files with 23 additions and 66 deletions
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22
src/cmd/link/internal/loader/loader.go
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@ -307,7 +307,6 @@ type extSymPayload struct {
const (
// Loader.flags
FlagStrictDups = 1 << iota
FlagUseABIAlias
)
func NewLoader(flags uint32, elfsetstring elfsetstringFunc, reporter *ErrorReporter) *Loader {
@ -2297,27 +2296,6 @@ func abiToVer(abi uint16, localSymVersion int) int {
return v
}
// ResolveABIAlias given a symbol returns the ABI alias target of that
// symbol. If the sym in question is not an alias, the sym itself is
// returned.
func (l *Loader) ResolveABIAlias(s Sym) Sym {
if l.flags&FlagUseABIAlias == 0 {
return s
}
if s == 0 {
return 0
}
if l.SymType(s) != sym.SABIALIAS {
return s
}
relocs := l.Relocs(s)
target := relocs.At(0).Sym()
if l.SymType(target) == sym.SABIALIAS {
panic(fmt.Sprintf("ABI alias %s references another ABI alias %s", l.SymName(s), l.SymName(target)))
}
return target
}
// TopLevelSym tests a symbol (by name and kind) to determine whether
// the symbol first class sym (participating in the link) or is an
// anonymous aux or sub-symbol containing some sub-part or payload of