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x/build: system linker warnings on macOS 10.15 when using cgo #41548

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sc0Vu opened this issue Sep 22, 2020 · 6 comments
Closed

x/build: system linker warnings on macOS 10.15 when using cgo #41548

sc0Vu opened this issue Sep 22, 2020 · 6 comments
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Builders x/build issues (builders, bots, dashboards) FrozenDueToAge NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. OS-Darwin WaitingForInfo Issue is not actionable because of missing required information, which needs to be provided.
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@sc0Vu
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sc0Vu commented Sep 22, 2020

What version of Go are you using (go version)?

$ go version

go version go1.15.2 darwin/amd64

Does this issue reproduce with the latest release?

Yes.
It seems this issue is related to #36025.

What operating system and processor architecture are you using (go env)?

go env Output
$ go env

GO111MODULE="on"

GOARCH="amd64"

GOBIN=""

GOCACHE="/Users/peterlai/Library/Caches/go-build"

GOENV="/Users/peterlai/Library/Application Support/go/env"

GOEXE=""

GOFLAGS=""

GOHOSTARCH="amd64"

GOHOSTOS="darwin"

GOINSECURE=""

GOMODCACHE="/Users/peterlai/go/pkg/mod"

GONOPROXY=""

GONOSUMDB=""

GOOS="darwin"

GOPATH="/Users/peterlai/go"

GOPRIVATE=""

GOPROXY="https://proxy.golang.org,direct"

GOROOT="/usr/local/Cellar/go/1.15.2/libexec"

GOSUMDB="sum.golang.org"

GOTMPDIR=""

GOTOOLDIR="/usr/local/Cellar/go/1.15.2/libexec/pkg/tool/darwin_amd64"

GCCGO="gccgo"

AR="ar"

CC="clang"

CXX="clang++"

CGO_ENABLED="1"

GOMOD="/Users/peterlai/diode_go_client/go.mod"

CGO_CFLAGS="-g -O2"

CGO_CPPFLAGS=""

CGO_CXXFLAGS="-g -O2"

CGO_FFLAGS="-g -O2"

CGO_LDFLAGS="-g -O2"

PKG_CONFIG="pkg-config"

GOGCCFLAGS="-fPIC -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/sw/qywtwldj7vj9wh26cry0cngm0000gn/T/go-build398699140=/tmp/go-build -gno-record-gcc-switches -fno-common"

What did you do?

Recently I upgraded golang from 1.14.4 to 1.15.2 with brew upgrade go.

After I upgraded, there are couple of warnings when I build our client, which we use cgo because of using openssl library, the source code: https://github.com/diodechain/diode_go_client/.

What did you expect to see?

No output on stdout/stderr.
This output was not shown with my system using go 1.14.4

What did you see instead?

When running the run command, or the go build command, I have the following output:

ld: warning: object file (/var/folders/sw/qywtwldj7vj9wh26cry0cngm0000gn/T/go-link-116021407/000000.o) was built for newer OSX version (10.15) than being linked (10.14)
ld: warning: object file (/var/folders/sw/qywtwldj7vj9wh26cry0cngm0000gn/T/go-link-116021407/000001.o) was built for newer OSX version (10.15) than being linked (10.14)
ld: warning: object file (/var/folders/sw/qywtwldj7vj9wh26cry0cngm0000gn/T/go-link-116021407/000002.o) was built for newer OSX version (10.15) than being linked (10.14)
ld: warning: object file (/var/folders/sw/qywtwldj7vj9wh26cry0cngm0000gn/T/go-link-116021407/000003.o) was built for newer OSX version (10.15) than being linked (10.14)
ld: warning: object file (/var/folders/sw/qywtwldj7vj9wh26cry0cngm0000gn/T/go-link-116021407/000004.o) was built for newer OSX version (10.15) than being linked (10.14)
ld: warning: object file (/var/folders/sw/qywtwldj7vj9wh26cry0cngm0000gn/T/go-link-116021407/000005.o) was built for newer OSX version (10.15) than being linked (10.14)
ld: warning: object file (/var/folders/sw/qywtwldj7vj9wh26cry0cngm0000gn/T/go-link-116021407/000006.o) was built for newer OSX version (10.15) than being linked (10.14)
ld: warning: object file (/var/folders/sw/qywtwldj7vj9wh26cry0cngm0000gn/T/go-link-116021407/000007.o) was built for newer OSX version (10.15) than being linked (10.14)
ld: warning: object file (/var/folders/sw/qywtwldj7vj9wh26cry0cngm0000gn/T/go-link-116021407/000008.o) was built for newer OSX version (10.15) than being linked (10.14)
ld: warning: object file (/var/folders/sw/qywtwldj7vj9wh26cry0cngm0000gn/T/go-link-116021407/000009.o) was built for newer OSX version (10.15) than being linked (10.14)
ld: warning: object file (/var/folders/sw/qywtwldj7vj9wh26cry0cngm0000gn/T/go-link-116021407/go.o) was built for newer OSX version (10.15) than being linked (10.14)
ld: warning: object file (/var/folders/sw/qywtwldj7vj9wh26cry0cngm0000gn/T/go-link-116021407/000010.o) was built for newer OSX version (10.15) than being linked (10.14)
ld: warning: object file (/var/folders/sw/qywtwldj7vj9wh26cry0cngm0000gn/T/go-link-116021407/000011.o) was built for newer OSX version (10.15) than being linked (10.14)
ld: warning: object file (/var/folders/sw/qywtwldj7vj9wh26cry0cngm0000gn/T/go-link-116021407/000012.o) was built for newer OSX version (10.15) than being linked (10.14)
ld: warning: object file (/var/folders/sw/qywtwldj7vj9wh26cry0cngm0000gn/T/go-link-116021407/000013.o) was built for newer OSX version (10.15) than being linked (10.14)
ld: warning: object file (/var/folders/sw/qywtwldj7vj9wh26cry0cngm0000gn/T/go-link-116021407/000048.o) was built for newer OSX version (10.15) than being linked (10.14)
ld: warning: object file (/var/folders/sw/qywtwldj7vj9wh26cry0cngm0000gn/T/go-link-116021407/000049.o) was built for newer OSX version (10.15) than being linked (10.14)
ld: warning: object file (/var/folders/sw/qywtwldj7vj9wh26cry0cngm0000gn/T/go-link-116021407/000050.o) was built for newer OSX version (10.15) than being linked (10.14)
ld: warning: object file (/var/folders/sw/qywtwldj7vj9wh26cry0cngm0000gn/T/go-link-116021407/000051.o) was built for newer OSX version (10.15) than being linked (10.14)

I can remove these warning with the CGO_CFLAGS=-mmacosx-version-min=10.12 (found in this commit: https://go-review.googlesource.com/c/build/+/216304/5/cmd/release/release.go#367)
@cagedmantis cagedmantis changed the title cmd/link: system linker warnings on macOS 10.15 when using cgo x/build: system linker warnings on macOS 10.15 when using cgo Sep 22, 2020
@gopherbot gopherbot added the Builders x/build issues (builders, bots, dashboards) label Sep 22, 2020
@gopherbot gopherbot added this to the Unreleased milestone Sep 22, 2020
@cagedmantis cagedmantis added the NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. label Sep 22, 2020
@cagedmantis cagedmantis modified the milestones: Unreleased, Backlog Sep 22, 2020
@cagedmantis cagedmantis self-assigned this Sep 22, 2020
@cagedmantis
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Changed this to an x/build issue since I believe this is an issue with the packaging.

@cagedmantis
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/cc @andybons @dmitshur @toothrot

@networkimprov
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@gopherbot add OS-Darwin

@cagedmantis
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@sc0Vu Do you encounter the same error if you download and use the pkg from the golang site?

@cagedmantis cagedmantis added the WaitingForInfo Issue is not actionable because of missing required information, which needs to be provided. label Sep 23, 2020
@scottomyers
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Just chiming in, I encountered this same error after upgrading to go 1.15 with brew. Removing the version of go installed by brew and then installing the pkg from the golang site resolved my issue.

@gopherbot
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Timed out in state WaitingForInfo. Closing.

(I am just a bot, though. Please speak up if this is a mistake or you have the requested information.)

@golang golang locked and limited conversation to collaborators Oct 23, 2021
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