gollvm: undefined reference to C functions #35623
Description
What version of Go are you using (go version)?
$ go version go version go1.13 gollvm LLVM 10.0.0svn linux/amd64
Does this issue reproduce with the latest release?
Yes
What operating system and processor architecture are you using (go env)?
$ uname -m -v #1 SMP Debian 4.9.88-1+deb9u1 (2018-05-07) x86_64 $ cat /etc/debian_version 9.4
What did you do?
$ git clone https://github.com/opencontainers/runc.git $ cd runc $ mkdir -p .gopath/src/github.com/opencontainers/ $ ln -sf `pwd` `pwd`/.gopath/src/github.com/opencontainers/runc $ export GOPATH=`pwd`/.gopath $ cd .gopath/src/github.com/opencontainers/runc/ $ go build -tags "seccomp" -o runc .
What did you expect to see?
Clean compilation.
What did you see instead?
$ go build -tags "seccomp" -o runc . # github.com/opencontainers/runc /home/chernik_e/work/gollvm/try20191114/runc/.gopath/src/github.com/opencontainers/runc/vendor/github.com/seccomp/libseccomp-golang/seccomp.go:380: error: undefined reference to 'github.x2ecom..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.x2ecom..z2fseccomp..z2flibseccomp..z2dgolang._cgoCheckPointer' /home/chernik_e/work/gollvm/try20191114/runc/.gopath/src/github.com/opencontainers/runc/vendor/github.com/seccomp/libseccomp-golang/seccomp.go:397: error: undefined reference to 'github.x2ecom..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.x2ecom..z2fseccomp..z2flibseccomp..z2dgolang._cgoCheckPointer' /home/chernik_e/work/gollvm/try20191114/runc/.gopath/src/github.com/opencontainers/runc/vendor/github.com/seccomp/libseccomp-golang/seccomp.go:421: error: undefined reference to 'github.x2ecom..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.x2ecom..z2fseccomp..z2flibseccomp..z2dgolang._cgoCheckPointer' /home/chernik_e/work/gollvm/try20191114/runc/.gopath/src/github.com/opencontainers/runc/vendor/github.com/seccomp/libseccomp-golang/seccomp.go:555: error: undefined reference to 'github.x2ecom..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.x2ecom..z2fseccomp..z2flibseccomp..z2dgolang._cgoCheckPointer' cgo-generated-wrappers:76: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_ACT_ALLOW' cgo-generated-wrappers:77: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_ACT_ERRNO' cgo-generated-wrappers:78: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_ACT_KILL' cgo-generated-wrappers:79: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_ACT_LOG' cgo-generated-wrappers:80: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_ACT_TRACE' cgo-generated-wrappers:81: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_ACT_TRAP' cgo-generated-wrappers:82: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_ARCH_AARCH64' cgo-generated-wrappers:83: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_ARCH_ARM' cgo-generated-wrappers:84: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_ARCH_BAD' cgo-generated-wrappers:85: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_ARCH_MIPS' cgo-generated-wrappers:86: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_ARCH_MIPS64' cgo-generated-wrappers:87: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_ARCH_MIPS64N32' cgo-generated-wrappers:88: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_ARCH_MIPSEL' cgo-generated-wrappers:89: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_ARCH_MIPSEL64' cgo-generated-wrappers:90: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_ARCH_MIPSEL64N32' cgo-generated-wrappers:91: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_ARCH_NATIVE' cgo-generated-wrappers:92: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_ARCH_PPC' cgo-generated-wrappers:93: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_ARCH_PPC64' cgo-generated-wrappers:94: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_ARCH_PPC64LE' cgo-generated-wrappers:95: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_ARCH_S390' cgo-generated-wrappers:96: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_ARCH_S390X' cgo-generated-wrappers:97: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_ARCH_X32' cgo-generated-wrappers:98: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_ARCH_X86' cgo-generated-wrappers:99: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_ARCH_X86_64' cgo-generated-wrappers:100: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_ATTRIBUTE_BADARCH' cgo-generated-wrappers:101: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_ATTRIBUTE_DEFAULT' cgo-generated-wrappers:102: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_ATTRIBUTE_LOG' cgo-generated-wrappers:103: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_ATTRIBUTE_NNP' cgo-generated-wrappers:104: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_ATTRIBUTE_TSYNC' cgo-generated-wrappers:105: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_CMP_EQ' cgo-generated-wrappers:106: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_CMP_GE' cgo-generated-wrappers:107: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_CMP_GT' cgo-generated-wrappers:108: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_CMP_LE' cgo-generated-wrappers:109: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_CMP_LT' cgo-generated-wrappers:110: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_CMP_MASKED_EQ' cgo-generated-wrappers:111: error: undefined reference to 'github.com..z2fopencontainers..z2frunc..z2fvendor..z2fgithub.com..z2fseccomp..z2flibseccomp..z2dgolang.Cvar_C_CMP_NE'
Comment
The issue is the same as the following from 2014:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61880
https://gcc.gnu.org/bugzilla/attachment.cgi?id=33173
$ tar xvfz CGO_FALURE.tar.gz $ cd CGO_FALURE $ export GOPATH=`pwd` $ go build ./src/cgo_problem/demo.go # command-line-arguments cgo-gccgo-export-file-prolog:27: error: undefined reference to 'cgo_problem..z2fexample.com..z2fdemo.Cgoexp_Dummy'
Workaround with renaming '.' to '_' in a package path helps to override this issue. (example.com -> example_com, github.com -> github_com)
The issue is actual for runc and docker projects.