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cmd/link: -pluginpath seems to no longer work with go1.13 #34143

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e-nikolov opened this issue Sep 6, 2019 · 4 comments
Closed

cmd/link: -pluginpath seems to no longer work with go1.13 #34143

e-nikolov opened this issue Sep 6, 2019 · 4 comments
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compiler/runtime Issues related to the Go compiler and/or runtime. FrozenDueToAge NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. WaitingForInfo Issue is not actionable because of missing required information, which needs to be provided.
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Backlog

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@e-nikolov
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e-nikolov commented Sep 6, 2019 •
edited

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

$ go version
go version go1.13 linux/amd64

Does this issue reproduce with the latest release?

Yes

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

go env Output
$ go env
GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/home/enikolov/.cache/go-build"
GOENV="/home/enikolov/.config/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GONOPROXY="bitbucket.org/unchain/*"
GONOSUMDB="bitbucket.org/unchain/*"
GOOS="linux"
GOPATH="/home/enikolov/go"
GOPRIVATE="bitbucket.org/unchain/*"
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/home/enikolov/.gvm/gos/go1.13"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/home/enikolov/.gvm/gos/go1.13/pkg/tool/linux_amd64"
GCCGO="gccgo"
AR="ar"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD=""
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-build411225951=/tmp/go-build -gno-record-gcc-switches"

What did you do?

go build -ldflags "-pluginpath=custom/path" -buildmode=plugin ./path/to/plugin

With go1.13 this seems to no longer map the packages to the custom path.

What did you expect to see?

I have the variable Version in my main package

With go 1.12 after running the strings utility on the produced binary, I would see this somewhere in the output:

custom/path.Version

What did you see instead?

With go1.13 I now see this instead:

path/to/plugin.Version

Could this be related to go modules?
@ianlancetaylor ianlancetaylor changed the title -pluginpath seems to no longer work with go1.13 cmd/link: -pluginpath seems to no longer work with go1.13 Sep 6, 2019
@ianlancetaylor ianlancetaylor added the NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. label Sep 6, 2019
@ianlancetaylor ianlancetaylor added this to the Go1.14 milestone Sep 6, 2019
@rsc rsc modified the milestones: Go1.14, Backlog Oct 9, 2019
@lysu lysu mentioned this issue Nov 14, 2019
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@ray2011
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ray2011 commented Mar 2, 2021

Has this problem be solved? It is inconvenient if we want to reload a plugin.

@qycyfjy
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qycyfjy commented Jan 26, 2022

Am I using it the wrong way or is it still buggy?
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@cherrymui
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What is the use case of -pluginpath? Does it affect the semantics of the program, besides changing some symbol names that can be inspected by tools (nm, objdump, strings)? @crawshaw what use cases did you have in mind? Thanks.

@seankhliao seankhliao added the WaitingForInfo Issue is not actionable because of missing required information, which needs to be provided. label Jun 15, 2022
@gopherbot gopherbot added the compiler/runtime Issues related to the Go compiler and/or runtime. label Jul 13, 2022
@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.)

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compiler/runtime Issues related to the Go compiler and/or runtime. FrozenDueToAge NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. WaitingForInfo Issue is not actionable because of missing required information, which needs to be provided.
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@rsc @e-nikolov @ianlancetaylor @ray2011 @gopherbot @seankhliao @cherrymui @qycyfjy