From c872b0594f716a2a0799b07d7226a45f02c005f1 Mon Sep 17 00:00:00 2001
From: Cherry Mui <cherryyz@google.com>
Date: Wed, 16 Mar 2022 13:07:57 -0400
Subject: [PATCH] cmd/link: mark unexported methods for plugins

When plugin is used, we already mark all exported methods
reachable. However, when the plugin and the host program share
a common package, an unexported method could also be reachable
from both the plugin and the host via interfaces. We need to mark
them as well.

Fixes #51621.

Change-Id: I1a70d3f96b66b803f2d0ab14d00ed0df276ea500
Reviewed-on: https://go-review.googlesource.com/c/go/+/393365
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
---
 src/cmd/link/internal/ld/deadcode.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/cmd/link/internal/ld/deadcode.go b/src/cmd/link/internal/ld/deadcode.go
index e4fa75f..21a9703 100644
--- a/src/cmd/link/internal/ld/deadcode.go
+++ b/src/cmd/link/internal/ld/deadcode.go
@@ -350,7 +350,7 @@ func deadcode(ctxt *Link) {
 		// in the last pass.
 		rem := d.markableMethods[:0]
 		for _, m := range d.markableMethods {
-			if (d.reflectSeen && m.isExported()) || d.ifaceMethod[m.m] {
+			if (d.reflectSeen && (m.isExported() || d.dynlink)) || d.ifaceMethod[m.m] {
 				d.markMethod(m)
 			} else {
 				rem = append(rem, m)
-- 
1.8.3.1

