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cmd/ld: support R_X86_64_64 relocation for dynamic symbol #4272

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taruti opened this issue Oct 21, 2012 · 3 comments
Closed

cmd/ld: support R_X86_64_64 relocation for dynamic symbol #4272

taruti opened this issue Oct 21, 2012 · 3 comments
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FrozenDueToAge
Milestone
Go1.1

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@taruti
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taruti commented Oct 21, 2012 

When trying to wrap a library using cgo on amd64 I keep getting
unexpected R_X86_64_64 relocation for dynamic symbol. The C sources are
in the same directory as the go source and get built by "go
test (/install)". The error occurs on both go1 and tip.

This was posted to -nuts and it was suggested that an issue should be filed.

Code: https://github.com/taruti/tidy-html5/tree/master/go/tidyhtml5

Debugging:

taruti@gate:~/go-work/src/github.com/taruti/tidy-html5/go/tidyhtml5$ go
test -x
WORK=/tmp/go-build850086970
mkdir -p
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/github.com/taruti/tidy-html5/go/
mkdir -p $WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/
cd /home/taruti/go-work/src/github.com/taruti/tidy-html5/go/tidyhtml5
/usr/lib/go/pkg/tool/linux_amd64/cgo -objdir
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/ -- -I
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/ tidyhtml5.go
/usr/lib/go/pkg/tool/linux_amd64/6c -FVw -I
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/ -I
/usr/lib/go/pkg/linux_amd64 -o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/_cgo_defun.6
-DGOOS_linux -DGOARCH_amd64
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/_cgo_defun.c
gcc -I . -g -O2 -fPIC -m64 -pthread -print-libgcc-file-name
gcc -I . -g -O2 -fPIC -m64 -pthread -I
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/ -o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/_cgo_main.o -c
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/_cgo_main.c
gcc -I . -g -O2 -fPIC -m64 -pthread -I
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/ -o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/_cgo_export.o -c
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/_cgo_export.c
gcc -I . -g -O2 -fPIC -m64 -pthread -I
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/ -o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/tidyhtml5.cgo2.o
-c
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/tidyhtml5.cgo2.c
gcc -I . -g -O2 -fPIC -m64 -pthread -I
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/ -o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/access.o -c
./access.c
gcc -I . -g -O2 -fPIC -m64 -pthread -I
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/ -o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/alloc.o -c
./alloc.c
gcc -I . -g -O2 -fPIC -m64 -pthread -I
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/ -o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/attrask.o -c
./attrask.c
gcc -I . -g -O2 -fPIC -m64 -pthread -I
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/ -o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/attrdict.o -c
./attrdict.c
gcc -I . -g -O2 -fPIC -m64 -pthread -I
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/ -o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/attrget.o -c
./attrget.c
gcc -I . -g -O2 -fPIC -m64 -pthread -I
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/ -o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/attrs.o -c
./attrs.c
gcc -I . -g -O2 -fPIC -m64 -pthread -I
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/ -o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/buffio.o -c
./buffio.c
gcc -I . -g -O2 -fPIC -m64 -pthread -I
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/ -o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/clean.o -c
./clean.c
gcc -I . -g -O2 -fPIC -m64 -pthread -I
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/ -o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/config.o -c
./config.c
gcc -I . -g -O2 -fPIC -m64 -pthread -I
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/ -o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/entities.o -c
./entities.c
gcc -I . -g -O2 -fPIC -m64 -pthread -I
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/ -o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/fileio.o -c
./fileio.c
gcc -I . -g -O2 -fPIC -m64 -pthread -I
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/ -o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/gdoc.o -c ./gdoc.c
gcc -I . -g -O2 -fPIC -m64 -pthread -I
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/ -o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/istack.o -c
./istack.c
gcc -I . -g -O2 -fPIC -m64 -pthread -I
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/ -o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/lexer.o -c
./lexer.c
gcc -I . -g -O2 -fPIC -m64 -pthread -I
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/ -o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/localize.o -c
./localize.c
gcc -I . -g -O2 -fPIC -m64 -pthread -I
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/ -o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/mappedio.o -c
./mappedio.c
gcc -I . -g -O2 -fPIC -m64 -pthread -I
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/ -o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/parser.o -c
./parser.c
gcc -I . -g -O2 -fPIC -m64 -pthread -I
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/ -o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/pprint.o -c
./pprint.c
gcc -I . -g -O2 -fPIC -m64 -pthread -I
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/ -o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/streamio.o -c
./streamio.c
gcc -I . -g -O2 -fPIC -m64 -pthread -I
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/ -o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/tagask.o -c
./tagask.c
gcc -I . -g -O2 -fPIC -m64 -pthread -I
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/ -o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/tags.o -c ./tags.c
gcc -I . -g -O2 -fPIC -m64 -pthread -I
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/ -o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/tidylib.o -c
./tidylib.c
gcc -I . -g -O2 -fPIC -m64 -pthread -I
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/ -o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/tmbstr.o -c
./tmbstr.c
gcc -I . -g -O2 -fPIC -m64 -pthread -I
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/ -o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/utf8.o -c ./utf8.c
gcc -I . -g -O2 -fPIC -m64 -pthread -o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/_cgo_.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/_cgo_main.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/_cgo_export.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/tidyhtml5.cgo2.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/access.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/alloc.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/attrask.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/attrdict.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/attrget.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/attrs.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/buffio.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/clean.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/config.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/entities.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/fileio.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/gdoc.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/istack.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/lexer.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/localize.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/mappedio.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/parser.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/pprint.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/streamio.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/tagask.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/tags.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/tidylib.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/tmbstr.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/utf8.o
/usr/lib/go/pkg/tool/linux_amd64/cgo -objdir
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/ -dynimport
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/_cgo_.o -dynout
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/_cgo_import.c
/usr/lib/go/pkg/tool/linux_amd64/6c -FVw -I
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/ -I
/usr/lib/go/pkg/linux_amd64 -o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/_cgo_import.6
-DGOOS_linux -DGOARCH_amd64
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/_cgo_import.c
gcc -I . -g -O2 -fPIC -m64 -pthread -o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/_all.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/_cgo_export.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/tidyhtml5.cgo2.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/access.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/alloc.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/attrask.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/attrdict.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/attrget.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/attrs.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/buffio.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/clean.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/config.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/entities.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/fileio.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/gdoc.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/istack.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/lexer.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/localize.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/mappedio.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/parser.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/pprint.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/streamio.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/tagask.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/tags.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/tidylib.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/tmbstr.o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/utf8.o -Wl,-r
-nostdlib /usr/lib/gcc/x86_64-linux-gnu/4.6/libgcc.a
/usr/lib/go/pkg/tool/linux_amd64/6g -o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/_go_.6 -p
github.com/taruti/tidy-html5/go/tidyhtml5 -D
_/home/taruti/go-work/src/github.com/taruti/tidy-html5/go/tidyhtml5 -I
$WORK ./tidyhtml5_test.go
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/_cgo_gotypes.go
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/tidyhtml5.cgo1.go
/usr/lib/go/pkg/tool/linux_amd64/pack grcP $WORK
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/github.com/taruti/tidy-html5/go/tidyhtml5.a
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/_go_.6
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/_cgo_import.6
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/_cgo_defun.6
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/_all.o
cd $WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test
/usr/lib/go/pkg/tool/linux_amd64/6g -o ./_go_.6 -p testmain -D  -I . -I
$WORK ./_testmain.go
/usr/lib/go/pkg/tool/linux_amd64/pack grcP $WORK ./main.a ./_go_.6
cd .
/usr/lib/go/pkg/tool/linux_amd64/6l -o
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/tidyhtml5.test -L
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test -L $WORK
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/main.a
# testmain
github.com/taruti/tidy-html5/go/tidyhtml5(.data.rel.ro): unexpected
R_X86_64_64 relocation for dynamic symbol prvTidyParsePre
github.com/taruti/tidy-html5/go/tidyhtml5(.data.rel.ro): unexpected
R_X86_64_64 relocation for dynamic symbol prvTidyParsePre
github.com/taruti/tidy-html5/go/tidyhtml5(.data.rel.ro): unexpected
R_X86_64_64 relocation for dynamic symbol prvTidyParsePre
github.com/taruti/tidy-html5/go/tidyhtml5(.data.rel.ro): unexpected
R_X86_64_64 relocation for dynamic symbol prvTidyParsePre
$WORK/github.com/taruti/tidy-html5/go/tidyhtml5/_test/tidyhtml5.test
FAIL    github.com/taruti/tidy-html5/go/tidyhtml5 [build failed]
taruti@gate:~/go-work/src/github.com/taruti/tidy-html5/go/tidyhtml5$



And some more info:

# Library built with cgo with "go build" and "go install" with the C
  source files in the same directory.

taruti@gate:~/go-work/src/github.com/taruti/tidy-html5/go/tidyhtml5$ go
test
# testmain
/tmp/go-build100262425/github.com/taruti/tidy-html5/go/tidyhtml5/_test/github.com/taruti/tidy-html5/go/tidyhtml5.a(tags.o)(.data.rel.ro):
unexpected R_X86_64_64 relocation for dynamic symbol prvTidyParsePre
/tmp/go-build100262425/github.com/taruti/tidy-html5/go/tidyhtml5/_test/github.com/taruti/tidy-html5/go/tidyhtml5.a(tags.o)(.data.rel.ro):
unexpected R_X86_64_64 relocation for dynamic symbol prvTidyParsePre
/tmp/go-build100262425/github.com/taruti/tidy-html5/go/tidyhtml5/_test/github.com/taruti/tidy-html5/go/tidyhtml5.a(tags.o)(.data.rel.ro):
unexpected R_X86_64_64 relocation for dynamic symbol prvTidyParsePre
/tmp/go-build100262425/github.com/taruti/tidy-html5/go/tidyhtml5/_test/github.com/taruti/tidy-html5/go/tidyhtml5.a(tags.o)(.data.rel.ro):
unexpected R_X86_64_64 relocation for dynamic symbol prvTidyParsePre
FAIL       github.com/taruti/tidy-html5/go/tidyhtml5 [build failed]
taruti@gate:~/go-work/src/github.com/taruti/tidy-html5/go/tidyhtml5$ go
tool pack xv
~/go-work/pkg/linux_amd64/github.com/taruti/tidy-html5/go/tidyhtml5.a
tags.o parser.o
x - parser.o
x - tags.o
taruti@gate:~/go-work/src/github.com/taruti/tidy-html5/go/tidyhtml5$ nm
tags.o | grep prvTidyParsePre
                 U prvTidyParsePre
taruti@gate:~/go-work/src/github.com/taruti/tidy-html5/go/tidyhtml5$
objdump -x tags.o | grep prvTidyParsePre
0000000000000000         *UND*  0000000000000000 prvTidyParsePre
000000000000048a R_X86_64_GOTPCREL  prvTidyParsePre-0x0000000000000004
00000000000005d7 R_X86_64_GOTPCREL  prvTidyParsePre-0x0000000000000004
000000000000091b R_X86_64_GOTPCREL  prvTidyParsePre-0x0000000000000004
0000000000000de8 R_X86_64_64       prvTidyParsePre
00000000000010e8 R_X86_64_64       prvTidyParsePre
0000000000001128 R_X86_64_64       prvTidyParsePre
0000000000001928 R_X86_64_64       prvTidyParsePre
taruti@gate:~/go-work/src/github.com/taruti/tidy-html5/go/tidyhtml5$ nm
parser.o | grep prvTidyParsePre
0000000000001290 T prvTidyParsePre
taruti@gate:~/go-work/src/github.com/taruti/tidy-html5/go/tidyhtml5$
objdump -x parser.o | grep prvTidyParsePre
0000000000001290 g     F .text  0000000000000376 prvTidyParsePre
000000000000054c R_X86_64_GOTPCREL  prvTidyParsePre-0x0000000000000004
000000000000065c R_X86_64_GOTPCREL  prvTidyParsePre-0x0000000000000004
00000000000010b4 R_X86_64_GOTPCREL  prvTidyParsePre-0x0000000000000004
0000000000005b4f R_X86_64_GOTPCREL  prvTidyParsePre-0x0000000000000004
taruti@gate:~/go-work/src/github.com/taruti/tidy-html5/go/tidyhtml5$
@minux
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minux commented Oct 21, 2012

Comment 1:

the correct way is to add a R_X86_64_COPY relocation for it.

Labels changed: added priority-later, removed priority-triage.

Status changed to Accepted.

@rsc
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rsc commented Dec 10, 2012

Comment 2:

Labels changed: added size-l.

@rsc
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rsc commented Mar 11, 2013

Comment 3:

We're not going to add explicit support for this; instead, we'll make builds like this
one invoke gcc to do the final link. You can try the work in progress at tip by using
go build -ldflags '-w -hostobj' your/binary
There won't be any dwarf information in the binary - that doesn't work yet. And
eventually the go command will set this mode automatically for you.
All this is being tracked as issue #4069.

Status changed to Duplicate.

Merged into issue #4069.

@rsc rsc added this to the Go1.1 milestone Apr 14, 2015
@rsc rsc removed the go1.1 label Apr 14, 2015
@golang golang locked and limited conversation to collaborators Jun 24, 2016
This issue was closed.
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