Seems like even that does not seem to work. Please see:
amandeep@s113ldom1:/opt/go_pkgs/src/github.com/golang/glog$ sudo
GOPATH=/opt/go_pkgs CGO_CFLAGS='-m64' CGO_LDFLAGS='-m64' go install -x
-gccgoflags=-m64
WORK=/tmp/go-build357879094
mkdir -p $WORK/b001/
cd $WORK
/usr/gnu/bin/gccgo -fgo-importcfg=/dev/null -c -x c - || true
cd /opt/go_pkgs/src/github.com/golang/glog
/usr/gnu/bin/gccgo -c -g -fdebug-prefix-map=$WORK=/tmp/go-build
-gno-record-gcc-switches -fgo-pkgpath=github.com/golang/glog -o
$WORK/b001/_go_.o -I $WORK/b001/_importcfgroot_ -m64 ./glog.go
./glog_file.go
echo ' .section .go.buildid,"e"' >> $WORK/b001/_buildid.s
echo ' .byte 0x64,0x71,0x65,0x31,0x73,0x55,0x39,0x39' >>
$WORK/b001/_buildid.s
echo ' .byte 0x62,0x56,0x7a,0x36,0x52,0x57,0x35,0x74' >>
$WORK/b001/_buildid.s
echo ' .byte 0x64,0x55,0x59,0x4f,0x2f,0x64,0x71,0x65' >>
$WORK/b001/_buildid.s
echo ' .byte 0x31,0x73,0x55,0x39,0x39,0x62,0x56,0x7a' >>
$WORK/b001/_buildid.s
echo ' .byte 0x36,0x52,0x57,0x35,0x74,0x64,0x55,0x59' >>
$WORK/b001/_buildid.s
echo ' .byte 0x4f' >> $WORK/b001/_buildid.s
echo '' >> $WORK/b001/_buildid.s
/usr/gnu/bin/gccgo -xassembler-with-cpp -I $WORK/b001/ -c -o
$WORK/b001/_buildid.o -D GOOS_solaris -D GOARCH_sparc -D
GOPKGPATH=github_com_golang_glog $WORK/b001/_buildid.s
ar rcD $WORK/b001/_pkg_.a $WORK/b001/_go_.o $WORK/b001/_buildid.o
/usr/gnu/libexec/gcc/sparc-sun-solaris2.11/8.2.1/buildid -w
$WORK/b001/_pkg_.a # internal
cp $WORK/b001/_pkg_.a
/root/.cache/go-build/9d/9de1b3b9dc941395e2c0ba0bd363f9af9f8dc5c62c84b2d248c274ba14a2bcd7-d
# internal
mkdir -p /opt/go_pkgs/pkg/gccgo_solaris_sparc/github.com/golang/
cp $WORK/b001/_pkg_.a
/opt/go_pkgs/pkg/gccgo_solaris_sparc/github.com/golang/libglog.a
rm -r $WORK/b001/
amandeep@s113ldom1:/opt/go_pkgs/src/github.com/golang/glog$ file
/opt/go_pkgs/pkg/gccgo_solaris_sparc/github.com/golang/libglog.a
/opt/go_pkgs/pkg/gccgo_solaris_sparc/github.com/golang/libglog.a:
current ar archive, 32-bit symbol table
In the above output, I can see that -m64 flag is being passed to gcc, but
somehow does not seem to apply everywhere (one of the gccgo invocation does
not have -m64 flag). I tried to look at the generated archive and one of
the members is still 32bit MSB executable. Please look:
amandeep@s113ldom1:~/workspace$ ar -t
/opt/go_pkgs/pkg/gccgo_solaris_sparc/github.com/golang/libglog.a
_go_.o
_buildid.o
amandeep@s113ldom1:~/workspace$ ar -xv
/opt/go_pkgs/pkg/gccgo_solaris_sparc/github.com/golang/libglog.a ./_go_.o
./_buildid.o
x - _go_.o
x - _buildid.o
amandeep@s113ldom1:~/workspace$ file ./_buildid.o
./_buildid.o: ELF 32-bit MSB relocatable SPARC Version 1
amandeep@s113ldom1:~/workspace$ file ./_go_.o
./_go_.o: ELF 64-bit MSB relocatable SPARCV9 Version 1
Could that be the reason?
I also tried providing GOARCH=sprac64 flag to see if that helps, but it
didn't. Similar output, just the file is generated in a different folder.
Please see:
amandeep@s113ldom1:/opt/go_pkgs/src/github.com/golang/glog$ sudo
GOPATH=/opt/go_pkgs CGO_CFLAGS='-m64' CGO_LDFLAGS='-m64' GOARCH=sparc64
CGO_ENABLED=1 go install -x -gccgoflags=-m64
WORK=/tmp/go-build328208181
mkdir -p $WORK/b001/
cd $WORK
/usr/gnu/bin/gccgo -fgo-importcfg=/dev/null -c -x c - || true
cd /opt/go_pkgs/src/github.com/golang/glog
/usr/gnu/bin/gccgo -c -g -fdebug-prefix-map=$WORK=/tmp/go-build
-gno-record-gcc-switches -fgo-pkgpath=github.com/golang/glog -o
$WORK/b001/_go_.o -I $WORK/b001/_importcfgroot_ -m64 ./glog.go
./glog_file.go
echo ' .section .go.buildid,"e"' >> $WORK/b001/_buildid.s
echo ' .byte 0x79,0x71,0x58,0x37,0x74,0x64,0x76,0x6c' >>
$WORK/b001/_buildid.s
echo ' .byte 0x7a,0x59,0x53,0x39,0x41,0x6a,0x30,0x58' >>
$WORK/b001/_buildid.s
echo ' .byte 0x34,0x53,0x78,0x39,0x2f,0x79,0x71,0x58' >>
$WORK/b001/_buildid.s
echo ' .byte 0x37,0x74,0x64,0x76,0x6c,0x7a,0x59,0x53' >>
$WORK/b001/_buildid.s
echo ' .byte 0x39,0x41,0x6a,0x30,0x58,0x34,0x53,0x78' >>
$WORK/b001/_buildid.s
echo ' .byte 0x39' >> $WORK/b001/_buildid.s
echo '' >> $WORK/b001/_buildid.s
/usr/gnu/bin/gccgo -xassembler-with-cpp -I $WORK/b001/ -c -o
$WORK/b001/_buildid.o -D GOOS_solaris -D GOARCH_sparc64 -D
GOPKGPATH=github_com_golang_glog $WORK/b001/_buildid.s
ar rcD $WORK/b001/_pkg_.a $WORK/b001/_go_.o $WORK/b001/_buildid.o
/usr/gnu/libexec/gcc/sparc-sun-solaris2.11/8.2.1/buildid -w
$WORK/b001/_pkg_.a # internal
cp $WORK/b001/_pkg_.a
/root/.cache/go-build/a4/a47820a6bcb6e72c26a3be36129e80b12a0f0193dd5959e2c7304a3b169d9af8-d
# internal
mkdir -p /opt/go_pkgs/pkg/gccgo_solaris_sparc64/github.com/golang/
cp $WORK/b001/_pkg_.a
/opt/go_pkgs/pkg/gccgo_solaris_sparc64/github.com/golang/libglog.a
rm -r $WORK/b001/
amandeep@s113ldom1:/opt/go_pkgs/src/github.com/golang/glog$ file
/opt/go_pkgs/pkg/gccgo_solaris_sparc64/github.com/golang/libglog.a
/opt/go_pkgs/pkg/gccgo_solaris_sparc64/github.com/golang/libglog.a:
current ar archive, 32-bit symbol table
I also gave compiling the helloworld file a try with this newly generated
lib (with different flags) but the compilation still faces the previous
problem. Did I miss something? Please let me know.
Regards,
Aman
On Thursday, September 27, 2018 at 10:25:01 PM UTC-7, Ian Lance Taylor
wrote:
>
> On Thu, Sep 27, 2018 at 5:34 PM, <aman...@cohesity.com <javascript:>>
> wrote:
> > Yes, this works for a simple program I have. Now I modified the
> helloworld
> > to use glog as follows:
> >
> > package main
> >
> > import (
> > "fmt"
> > "github.com/golang/glog"
> > )
> >
> > func main() {
> > fmt.Println("Hello world....")
> > glog.Info("Hello world...")
> > }
> >
> > But now I get another error from libglog.a:
> >
> > amandeep@s113ldom1:~/workspace$ go build -gccgoflags=-m64 helloworld.go
> > # command-line-arguments
> > ld: warning: file
> > /opt/go_pkgs/pkg/gccgo_solaris_sparc/github.com/golang/libglog.a(_go_.o):
>
> > wrong ELF class: ELFCLASS32
> > Undefined first referenced
> > symbol in file
> > github_com_golang_glog..import $WORK/b001/_pkg_.a(_go_.o)
> > github_com_golang_glog.Info $WORK/b001/_pkg_.a(_go_.o)
> > ld: fatal: symbol referencing errors
> > collect2: error: ld returned 1 exit status
> >
> > So, I thought recompiling glog with 64 bit option would help. None of
> the
> > following helped:
> >
> > sudo GOPATH=/opt/go_pkgs/ CGO_LDFLAGS='-m64' go install
> > sudo GOPATH=/opt/go_pkgs/ go install -gccgoflags '-m64'
> > sudo GOPATH=/opt/go_pkgs/ go install -gccgoflags='-m64'
> >
> > All of these generate the following:
> >
> > amandeep@s113ldom1:/opt/go_pkgs/src/github.com/golang/glog$ file
> > /opt/go_pkgs/pkg/gccgo_solaris_sparc/github.com/golang/libglog.a
> > /opt/go_pkgs/pkg/gccgo_solaris_sparc/github.com/golang/libglog.a:
> > current ar archive, 32-bit symbol table
>
> For a package that uses cgo, you'll need to use -gccgoflags=-m64 and
> also set both CGO_CFLAGS and CGO_LDFLAGS to -m64.
>
> Ian
>
>
>
> > On Thursday, September 27, 2018 at 3:01:12 PM UTC-7, Ian Lance Taylor
> wrote:
> >>
> >> On Thu, Sep 27, 2018 at 2:57 PM, Amandeep Gautam
> >> <amandee...@gmail.com> wrote:
> >> > Hi,
> >> > I am trying to compile a 64bit executable using gccgo on Solaris
> >> > 11/10.
> >> > Following is what I have tried:
> >> >
> >> > CGO_LDFLAGS='-m64' go build hello_world.go
> >> > GOARCH=sparc64 CGO_LDFLAGS='-m64' go build hello_world.go
> >> >
> >> > Below is the output of the first command:
> >> >
> >> > amandeep@s113ldom1:~/workspace$ CGO_LDFLAGS='-m64' go build pqrs.go
> >> > # command-line-arguments
> >> > ld: warning: file $WORK/b001/_pkg_.a(_go_.o): wrong ELF class:
> >> > ELFCLASS32
> >> > Undefined first referenced
> >> > symbol in file
> >> > main.main
> >> >
> /usr/gnu/lib/gcc/sparc-sun-solaris2.11/8.2.1/../../../sparcv9/libgo.so
> >> > __go_init_main
> >> >
> /usr/gnu/lib/gcc/sparc-sun-solaris2.11/8.2.1/../../../sparcv9/libgo.so
> >> > ld: fatal: symbol referencing errors
> >> > collect2: error: ld returned 1 exit status
> >> >
> >> > However, I am able to generate 64 bit executable for c++ helloworld
> >> > using
> >> > just gcc, so I am hoping it boils down to passing the right set of
> >> > flags.
> >> > For example:
> >> >
> >> > amandeep@s113ldom1:~/workspace$ /usr/gnu/bin/gcc -m64 helloworld.c
> >> > amandeep@s113ldom1:~/workspace$ file ./a.out
> >> > ./a.out: ELF 64-bit MSB executable SPARCV9 Version 1,
> dynamically
> >> > linked, not stripped, no debugging information available
> >> > amandeep@s113ldom1:~/workspace$ file /usr/gnu/bin/gcc
> >> > /usr/gnu/bin/gcc: ELF 32-bit MSB executable SPARC32PLUS Version
> 1,
> >> > V8+
> >> > Required, dynamically linked, not stripped
> >> >
> >> > How would you compile a 64 bit executable for Solaris using gccgo?
> >>
> >> CGO_LDFLAGS only affects your program if it actually uses cgo.
> >>
> >> Does it work to do
> >> go build -gccgoflags=-m64
> >> ?
> >
> >
> > --
> > You received this message because you are subscribed to the Google
> Groups
> > "golang-nuts" group.
> > To unsubscribe from this group and stop receiving emails from it, send
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> > email to golang-nuts...@googlegroups.com <javascript:>.
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