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hengwu0 opened this issue Jul 25, 2018 · 8 comments
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cmd/link: run test in -linkshared mode failed #26582

hengwu0 opened this issue Jul 25, 2018 · 8 comments
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FrozenDueToAge NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
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@hengwu0
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hengwu0 commented Jul 25, 2018

Please answer these questions before submitting your issue. Thanks!

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

go version go1.10.3 linux/amd64

Does this issue reproduce with the latest release?

yes

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

Linux jim-PC 3.19.0-15-generic #15-Ubuntu SMP Thu Apr 16 23:32:37 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
GOARCH="amd64"
GOBIN=""
GOCACHE="/home/jim/.cache/go-build"
GOEXE=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOOS="linux"
GOPATH="/home/jim/go"
GORACE=""
GOROOT="/home/jim/golang/go"
GOTMPDIR=""
GOTOOLDIR="/home/jim/golang/go/pkg/tool/linux_amd64"
GCCGO="gccgo"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
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 -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build891088383=/tmp/go-build -gno-record-gcc-switches"

What did you do?

1、 go install -buildmode=shared std
2、 go test -short -linkshared expvar

What did you expect to see?

expvar test PASS

What did you see instead?

failure details:
expvar (testmain)
main.statictmp_0: relocation target expvar.TestNil·f not defined
main.statictmp_0: relocation target expvar.TestInt·f not defined
main.statictmp_0: relocation target expvar.TestFloat·f not defined
main.statictmp_0: relocation target expvar.TestString·f not defined
main.statictmp_0: relocation target expvar.TestMapInit·f not defined
main.statictmp_0: relocation target expvar.TestMapCounter·f not defined
main.statictmp_0: relocation target expvar.TestFunc·f not defined
main.statictmp_0: relocation target expvar.TestHandler·f not defined
main.statictmp_1: relocation target expvar.BenchmarkIntAdd·f not defined
main.statictmp_1: relocation target expvar.BenchmarkIntSet·f not defined
main.statictmp_1: relocation target expvar.BenchmarkFloatAdd·f not defined
main.statictmp_1: relocation target expvar.BenchmarkFloatSet·f not defined
main.statictmp_1: relocation target expvar.BenchmarkStringSet·f not defined
main.statictmp_1: relocation target expvar.BenchmarkMapSet·f not defined
main.statictmp_1: relocation target expvar.BenchmarkMapSetDifferent·f not defined
main.statictmp_1: relocation target expvar.BenchmarkMapSetString·f not defined
main.statictmp_1: relocation target expvar.BenchmarkMapAddSame·f not defined
main.statictmp_1: relocation target expvar.BenchmarkMapAddDifferent·f not defined
main.statictmp_1: relocation target expvar.BenchmarkMapAddSameSteadyState·f not defined
main.statictmp_1: relocation target expvar.BenchmarkMapAddDifferentSteadyState·f not defined
main.statictmp_1: relocation target expvar.BenchmarkRealworldExpvarUsage·f not defined
/home/jim/golang/go/pkg/tool/linux_amd64/link: too many errors
FAIL expvar [build failed]
@hengwu0
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hengwu0 commented Jul 25, 2018

Bug reason: The Shlib record of the pkg "expvar" should be cleaned once the expvar pkg being rebuilt. Otherwise, the "packageshlib" key word in importcfg.link file will render the "packagefile" ineffective, in which the "packagefile" indicate the path of _pkg_.a( or cached _pkg_.a) and the "packageshlib" indicate the path of it's shlib( antiquated path: pkg/linux_amd64_dynlink/libstd.so ).

@gopherbot gopherbot mentioned this issue Jul 25, 2018
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@andybons
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@cherrymui @mdempsky @ianlancetaylor

@andybons andybons added the NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. label Jul 25, 2018
@andybons andybons added this to the Unplanned milestone Jul 25, 2018
@gopherbot
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Change https://golang.org/cl/125441 mentions this issue: cmd/link: clear up the Shlib record when building a pkg

@agnivade
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@hengwu0 - I see you closed the PR. Is this still an issue for you ?

@hengwu0
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hengwu0 commented Mar 1, 2019

@hengwu0 - I see you closed the PR. Is this still an issue for you ?

I tested this issue now again. It still can be reproduced with the golang1.11.5, and I don't know how to fix it.
I'm not using golang to link-shared or build-shared now, and i think it still needs much more time to grow.

@hengwu0
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hengwu0 commented Mar 1, 2019

@hengwu0 - I see you closed the PR. Is this still an issue for you ?

I can close this issue if you want to.

@hengwu0 hengwu0 closed this as completed Mar 1, 2019
@agnivade
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agnivade commented Mar 1, 2019

We can reopen to put it up for investigation.

@agnivade agnivade reopened this Mar 1, 2019
@seankhliao
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Obsoleted by #47788

@golang golang locked and limited conversation to collaborators Oct 27, 2022
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@andybons @agnivade @gopherbot @seankhliao @hengwu0