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[dev.link] cmd/internal/obj: don't write builtin names in obj writer

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Change the object file writer to avoid adding entries to the object
file string table for builtin functions. This helps save some very
small amount of space in the object file.

Change-Id: Ic3b94a154e00eb4c7378b57613580c7073b841bc
Reviewed-on: https://go-review.googlesource.com/c/go/+/239657
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Reviewed-by: Jeremy Faller <jeremy@golang.org>
This commit is contained in:
Than McIntosh 2020-06-17 10:41:56 -04:00
parent a89fd32316
commit be38746eb4
1 changed files with 5 additions and 0 deletions
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5
src/cmd/internal/obj/objfile2.go
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@ -208,6 +208,11 @@ func (w *writer) StringTable() {
if w.pkgpath != "" {
s.Name = strings.Replace(s.Name, "\"\".", w.pkgpath+".", -1)
}
// Don't put names of builtins into the string table (to save
// space).
if s.PkgIdx == goobj2.PkgIdxBuiltin {
return
}
w.AddString(s.Name)
})
w.ctxt.traverseSyms(traverseDefs, func(s *LSym) {