[dev.link] cmd/link: stop marking DWARF constant symbols

DWARF constant symbols were always marked and converted to sym.Symbols when DWARF generation uses sym.Symbols. Now that the DWARF generation uses the loader, no need to force-mark them. Change-Id: Ia4032430697cfa901fb4b6d106a483973277ea0a Reviewed-on: https://go-review.googlesource.com/c/go/+/226803 Reviewed-by: Than McIntosh <[email protected]> Reviewed-by: Jeremy Faller <[email protected]>
threestoneliu · Apr 1, 2020 · 8cc515a · 8cc515a
1 parent cc3039f
commit 8cc515a
Showing 1 changed file with 0 additions and 9 deletions.
diff --git a/src/cmd/link/internal/ld/deadcode2.go b/src/cmd/link/internal/ld/deadcode2.go
@@ -6,7 +6,6 @@ package ld
 
 import (
 	"bytes"
-	"cmd/internal/dwarf"
 	"cmd/internal/objabi"
 	"cmd/internal/sys"
 	"cmd/link/internal/loader"
@@ -101,14 +100,6 @@ func (d *deadcodePass2) init() {
 		names = append(names, exp)
 	}
 
-	// DWARF constant DIE symbols are not referenced, but needed by
-	// the dwarf pass.
-	if !*FlagW {
-		for _, lib := range d.ctxt.Library {
-			names = append(names, dwarf.ConstInfoPrefix+lib.Pkg)
-		}
-	}
-
 	for _, name := range names {
 		// Mark symbol as a data/ABI0 symbol.
 		d.mark(d.ldr.Lookup(name, 0), 0)