Commit d1c6c600 authored by Dmitriy Vyukov's avatar Dmitriy Vyukov

cmd/go: fix data race on buildLdflags

Fixes #7438.

LGTM=rsc
R=golang-codereviews
CC=bradfitz, golang-codereviews, iant, rsc
https://golang.org/cl/70420044
parent 52e6d7c6
......@@ -1714,6 +1714,8 @@ func (gcToolchain) ld(b *builder, p *Package, out string, allactions []*action,
}
}
ldflags := buildLdflags
// Limit slice capacity so that concurrent appends do not race on the shared array.
ldflags = ldflags[:len(ldflags):len(ldflags)]
if buildContext.InstallSuffix != "" {
ldflags = append(ldflags, "-installsuffix", buildContext.InstallSuffix)
}
......
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