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cmd/link: always mark runtime.buildVersion and runtime.modinfo reachable

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runtime.buildVersion and runtime.modinfo are referenced in the
.go.buildinfo section, therefore reachable. They should normally
be reachable from the runtime. Just make it explicit, in case.

Change-Id: I60ff3132e0bbb690f4a3cba8bb18735921fbe951
Reviewed-on: https://go-review.googlesource.com/c/go/+/261637
Trust: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Cherry Zhang <cherryyz@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: Jeremy Faller <jeremy@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
This commit is contained in:
Cherry Zhang 2020-10-12 15:37:21 -04:00
parent 8994607f82
commit 3a34395363
1 changed files with 6 additions and 0 deletions
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6
src/cmd/link/internal/ld/deadcode.go
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@ -62,6 +62,12 @@ func (d *deadcodePass) init() {
}
}
names = append(names, *flagEntrySymbol)
if !d.ctxt.linkShared && d.ctxt.BuildMode != BuildModePlugin {
// runtime.buildVersion and runtime.modinfo are referenced in .go.buildinfo section
// (see function buildinfo in data.go). They should normally be reachable from the
// runtime. Just make it explicit, in case.
names = append(names, "runtime.buildVersion", "runtime.modinfo")
}
if d.ctxt.BuildMode == BuildModePlugin {
names = append(names, objabi.PathToPrefix(*flagPluginPath)+"..inittask", objabi.PathToPrefix(*flagPluginPath)+".main", "go.plugin.tabs")