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cmd/link: split out Extname into cold portion of sym.Symbol

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Create a new "AuxSymbol" struct into which 'cold' or 'infrequently
set' symbol fields are located. Move the Extname field from the
main Symbol struct to AuxSymbol.

Updates #26186

Change-Id: I9e795fb0cc48f978e2818475fa073ed9f2db202d
Reviewed-on: https://go-review.googlesource.com/125476
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Than McIntosh 2018-07-17 11:02:57 -04:00
parent 289dce24c1
commit 09df9b06a1
8 changed files with 70 additions and 44 deletions
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4
src/cmd/link/internal/ld/lib.go
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@ -435,7 +435,7 @@ func (ctxt *Link) loadlib() {
// cgo_import_static and cgo_import_dynamic,
// then we want to make it cgo_import_dynamic
// now.
if s.Extname != "" && s.Dynimplib() != "" && !s.Attr.CgoExport() {
if s.Extname() != "" && s.Dynimplib() != "" && !s.Attr.CgoExport() {
s.Type = sym.SDYNIMPORT
} else {
s.Type = 0
@ -2116,7 +2116,7 @@ func genasmsym(ctxt *Link, put func(*Link, *sym.Symbol, string, SymbolType, int6
if !s.Attr.Reachable() {
continue
}
put(ctxt, s, s.Extname, UndefinedSym, 0, nil)
put(ctxt, s, s.Extname(), UndefinedSym, 0, nil)
case sym.STLSBSS:
if ctxt.LinkMode == LinkExternal {