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[dev.link] cmd/link: remove sym.Symbols from loader

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Pushing the wavefront forward requires a single source of truth for
symbols. This CL removes sym.Symbols from the loader for host object
loaders, allowing us to have the single source of truth for symbols be
the loader, not some strange combination of sym.Symbols and the loader.

Change-Id: Ib8ff0117ebe6040fade346047535ff342d781081
Reviewed-on: https://go-review.googlesource.com/c/go/+/209217
Run-TryBot: Jeremy Faller <jeremy@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
This commit is contained in:
Jeremy Faller 2019-11-27 12:33:35 -05:00
parent 29f886e427
commit 664accc7be
8 changed files with 74 additions and 62 deletions
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7
src/cmd/link/internal/loadelf/ldelf.go
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@ -460,13 +460,12 @@ func parseArmAttributes(e binary.ByteOrder, data []byte) (found bool, ehdrFlags
// parameter initEhdrFlags contains the current header flags for the output
// object, and the returned ehdrFlags contains what this Load function computes.
// TODO: find a better place for this logic.
func Load(l *loader.Loader, arch *sys.Arch, syms *sym.Symbols, f *bio.Reader, pkg string, length int64, pn string, initEhdrFlags uint32) (textp []*sym.Symbol, ehdrFlags uint32, err error) {
localSymVersion := syms.IncVersion()
func Load(l *loader.Loader, arch *sys.Arch, localSymVersion int, f *bio.Reader, pkg string, length int64, pn string, initEhdrFlags uint32) (textp []*sym.Symbol, ehdrFlags uint32, err error) {
newSym := func(name string, version int) *sym.Symbol {
return l.Create(name, syms)
return l.Create(name)
}
lookup := func(name string, version int) *sym.Symbol {
return l.LookupOrCreate(name, version, syms)
return l.LookupOrCreate(name, version)
}
errorf := func(str string, args ...interface{}) ([]*sym.Symbol, uint32, error) {
return nil, 0, fmt.Errorf("loadelf: %s: %v", pn, fmt.Sprintf(str, args...))