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cmd/compile: skip types.Sym for GC mask symbols

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For GC mask symbols, we don't need to create types.Sym, just the
LSym.

Change-Id: I285b518cfd60bfaa3202a02b3005a7122daeb338
Reviewed-on: https://go-review.googlesource.com/c/go/+/313512
Trust: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
This commit is contained in:
Cherry Zhang 2021-04-23 22:30:38 -04:00
parent 897baae953
commit 1df309eb02
1 changed files with 3 additions and 5 deletions
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8
src/cmd/compile/internal/reflectdata/reflect.go
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@ -1509,12 +1509,10 @@ func dgcsym(t *types.Type) (lsym *obj.LSym, useGCProg bool, ptrdata int64) {
func dgcptrmask(t *types.Type) *obj.LSym {
ptrmask := make([]byte, (types.PtrDataSize(t)/int64(types.PtrSize)+7)/8)
fillptrmask(t, ptrmask)
p := fmt.Sprintf("gcbits.%x", ptrmask)
p := fmt.Sprintf("runtime.gcbits.%x", ptrmask)
sym := ir.Pkgs.Runtime.Lookup(p)
lsym := sym.Linksym()
if !sym.Uniq() {
sym.SetUniq(true)
lsym := base.Ctxt.Lookup(p)
if !lsym.OnList() {
for i, x := range ptrmask {
objw.Uint8(lsym, i, x)
}