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x/vgo: build fails under normal conditions with bad asm argument #23986

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RobbieMcKinstry opened this issue Feb 21, 2018 · 3 comments
Closed

x/vgo: build fails under normal conditions with bad asm argument #23986

RobbieMcKinstry opened this issue Feb 21, 2018 · 3 comments
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@RobbieMcKinstry
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RobbieMcKinstry commented Feb 21, 2018 •
edited

Please answer these questions before submitting your issue. Thanks!

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

go version go1.10 darwin/amd64

Does this issue reproduce with the latest release?

Yes, I'm using fresh vgo and fresh Go 1.10.

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

GOARCH="amd64"
GOBIN=""
GOCACHE="/Users/hashi/Library/Caches/go-build"
GOEXE=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GOOS="darwin"
GOPATH="/Users/hashi/go"
GORACE=""
GOROOT="/usr/local/go"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go/pkg/tool/darwin_amd64"
GCCGO="gccgo"
CC="clang"
CXX="clang++"
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 -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/4w/lggn8bld65n65jvyw1trh5mc0000gn/T/go-build410075004=/tmp/go-build -gno-record-gcc-switches -fno-common"

What did you do?

I downloaded a simple Go tool and tried to compile it with vgo. It failed with an error that does not appear to have arisen from misconfiguration.

git clone git@github.com:RobbieMcKinstry/parsertongue.git
cd parsertongue
echo > go.mod
vgo build

What did you expect to see?

Successful compilation:

vgo: resolving import "golang.org/x/exp/ebnf"
vgo: finding golang.org/x/exp (latest)
vgo: adding golang.org/x/exp v0.0.0-20180214205018-83bc9a11ae1a
vgo: resolving import "github.com/urfave/cli"
vgo: finding github.com/urfave/cli (latest)
vgo: adding github.com/urfave/cli v1.20.0

$ ls main
main

What did you see instead?

vgo: resolving import "golang.org/x/exp/ebnf"
vgo: finding golang.org/x/exp (latest)
vgo: adding golang.org/x/exp v0.0.0-20180214205018-83bc9a11ae1a
vgo: resolving import "github.com/urfave/cli"
vgo: finding github.com/urfave/cli (latest)
vgo: adding github.com/urfave/cli v1.20.0
go tool asm: exit status 2
flag provided but not defined: -V
usage: asm [options] file.s ...
Flags:
  -D value
        predefined symbol with optional simple value -D=identifier=value; can be set multiple times
  -I value
        include directory; can be set multiple times
  -S    print assembly and machine code
  -debug
        dump instructions as they are parsed
  -dynlink
        support references to Go symbols defined in other shared libraries
  -e    no limit on number of errors reported
  -o string
        output file; default foo.o for /a/b/c/foo.s as first argument
  -shared
        generate code that can be linked into a shared library
  -trimpath string
        remove prefix from recorded source file paths
# unicode/utf8
compile: -importcfg: open $WORK/b020/importcfg: no such file or directory
go tool asm: exit status 2
flag provided but not defined: -V
usage: asm [options] file.s ...
Flags:
  -D value
        predefined symbol with optional simple value -D=identifier=value; can be set multiple times
  -I value
        include directory; can be set multiple times
  -S    print assembly and machine code
  -debug
        dump instructions as they are parsed
  -dynlink
        support references to Go symbols defined in other shared libraries
  -e    no limit on number of errors reported
  -o string
        output file; default foo.o for /a/b/c/foo.s as first argument
  -shared
        generate code that can be linked into a shared library
  -trimpath string
        remove prefix from recorded source file paths

Other Notes

I tried to run vgo build . and vgo build main.go, both of which fail similarly.
@gopherbot gopherbot added this to the vgo milestone Feb 21, 2018
@rsc
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rsc commented Apr 2, 2018

Sorry. You're using Go 1.9; we've added better diagnostics here to indicate that Go 1.10 or later is required.

@rsc rsc closed this as completed Apr 2, 2018
@RobbieMcKinstry
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I am?? My go version command spits out 1.10.
Thanks for taking a look at this Russ. I will nuke my system and start again ^.^

@rsc
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rsc commented Apr 6, 2018

@RobbieMcKinstry The Go 1.10 asm understands -V=full (go tool asm -V=full). The one in your transcript does not.

@golang golang locked and limited conversation to collaborators Apr 6, 2019
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