From: Cherry Zhang <cherryyz@google.com>
Date: Sat, 24 Apr 2021 05:05:19 +0000 (-0400)
Subject: cmd/compile: make GC prog symbol content-addressable
X-Git-Tag: go1.17beta1~347
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=e99dfb0e5cd964c94d946cabeca9856634416737;p=gostls13.git

cmd/compile: make GC prog symbol content-addressable

Change-Id: I759ac021ae5882429f26455fd849613a33e41783
Reviewed-on: https://go-review.googlesource.com/c/go/+/313513
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>
---

diff --git a/src/cmd/compile/internal/reflectdata/reflect.go b/src/cmd/compile/internal/reflectdata/reflect.go
index 836174d0ce..06c4986cf4 100644
--- a/src/cmd/compile/internal/reflectdata/reflect.go
+++ b/src/cmd/compile/internal/reflectdata/reflect.go
@@ -1590,6 +1590,7 @@ func (p *gcProg) end() {
 	p.w.End()
 	objw.Uint32(p.lsym, 0, uint32(p.symoff-4))
 	objw.Global(p.lsym, int32(p.symoff), obj.DUPOK|obj.RODATA|obj.LOCAL)
+	p.lsym.Set(obj.AttrContentAddressable, true)
 	if base.Debug.GCProg > 0 {
 		fmt.Fprintf(os.Stderr, "compile: end GCProg for %v\n", p.lsym)
 	}