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[dev.link] cmd/link/internal/objfile: update deadcode2 to use new reloc hooks

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Update the new deadcode pass to use the revised loader interface
for querying relocations. Remove some of the previous loader relocation
methods, since they are no longer used.

Change-Id: I08cec4c05793a17698b2674068f64837a5bf4477
Reviewed-on: https://go-review.googlesource.com/c/go/+/200718
Reviewed-by: Cherry Zhang <cherryyz@google.com>
This commit is contained in:
Than McIntosh 2019-10-11 09:21:36 -04:00
parent 0b25ab5d96
commit 9036351dd7
2 changed files with 11 additions and 37 deletions
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27
src/cmd/link/internal/objfile/objfile2.go
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@ -266,33 +266,6 @@ func (l *Loader) SymType(i Sym) sym.SymKind {
return sym.AbiSymKindToSymKind[objabi.SymKind(osym.Type)]
}
// Returns the number of relocations given a global index.
func (l *Loader) NReloc(i Sym) int {
r, li := l.ToLocal(i)
if r == nil {
return 0
}
return r.NReloc(li)
}
// Returns the referred symbol of the j-th relocation of the i-th
// symbol.
func (l *Loader) RelocSym(i Sym, j int) Sym {
r, li := l.ToLocal(i)
rel := goobj2.Reloc{}
rel.Read(r.Reader, r.RelocOff(li, j))
return l.Resolve(r, rel.Sym)
}
// Returns the relocation type of the j-th relocation of the i-th
// symbol.
func (l *Loader) RelocType(i Sym, j int) objabi.RelocType {
r, li := l.ToLocal(i)
rel := goobj2.Reloc{}
rel.Read(r.Reader, r.RelocOff(li, j))
return objabi.RelocType(rel.Type)
}
// Returns the number of aux symbols given a global index.
func (l *Loader) NAux(i Sym) int {
r, li := l.ToLocal(i)