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

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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 <thanm@google.com>
Reviewed-by: Jeremy Faller <jeremy@golang.org>
This commit is contained in:
Cherry Zhang 2020-04-01 12:17:04 -04:00
parent cc3039f818
commit 8cc515ad3f
1 changed files with 0 additions and 9 deletions
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9
src/cmd/link/internal/ld/deadcode2.go
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@ -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)