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Matthew Dempsky d2a7a180d3 [release-branch.go1.18] cmd/compile: allow ineffectual //go:linkname in -lang=go1.17 and older
Prior to Go 1.18, ineffectual //go:linkname directives (i.e.,
directives referring to an undeclared name, or to a declared type or
constant) were treated as noops. In Go 1.18, we changed this into a
compiler error to mitigate accidental misuse.

However, the x/sys repo contained ineffectual //go:linkname directives
up until go.dev/cl/274573, which has caused a lot of user confusion.

It seems a bit late to worry about now, but to at least prevent
further user pain, this CL changes the error message to only apply to
modules using "go 1.18" or newer. (The x/sys repo declared "go 1.12"
at the time go.dev/cl/274573 was submitted.)

For #55889.
Fixes #56556.

Change-Id: Id762fff96fd13ba0f1e696929a9e276dfcba2620
Reviewed-on: https://go-review.googlesource.com/c/go/+/447755
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-on: https://go-review.googlesource.com/c/go/+/447815
2022-11-09 18:44:17 +00:00
.github .github: remove duplicate security link 2022-01-07 17:55:09 +00:00
api runtime/debug: replace (*BuildInfo).Marshal methods with Parse and String 2022-02-09 19:44:03 +00:00
doc [release-branch.go1.18] doc: update go_spec.html with latest changes 2022-03-14 20:36:15 +00:00
lib/time lib/time, time/tzdata: update to 2021e 2021-11-11 05:16:39 +00:00
misc [release-branch.go1.18] misc/cgo/testcarchive: permit SIGQUIT for TestSignalForwardingExternal 2022-08-29 19:07:43 +00:00
src [release-branch.go1.18] cmd/compile: allow ineffectual //go:linkname in -lang=go1.17 and older 2022-11-09 18:44:17 +00:00
test [release-branch.go1.18] cmd/compile: allow ineffectual //go:linkname in -lang=go1.17 and older 2022-11-09 18:44:17 +00:00
.gitattributes all: treat all files as binary, but check in .bat with CRLF 2020-06-08 15:31:43 +00:00
.gitignore internal/buildcfg: move build configuration out of cmd/internal/objabi 2021-04-16 19:20:53 +00:00
AUTHORS A+C: add Bharath Kumar Uppala (individual CLA) 2021-11-29 00:57:09 +00:00
codereview.cfg [release-branch.go1.18] update codereview.cfg for release-branch.go1.18 2022-02-16 21:18:03 +00:00
CONTRIBUTING.md
CONTRIBUTORS CONTRIBUTORS: update for the Go 1.18 release 2022-02-28 15:43:07 +00:00
LICENSE
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README.md README.md: update contribute URL 2021-09-30 13:33:21 +00:00
SECURITY.md SECURITY.md: update go versions 2019-09-26 15:34:57 +00:00
VERSION [release-branch.go1.18] go1.18.8 2022-11-01 16:45:18 +00:00

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