Compiler: I compiled it using "-s -w" build flag. but information still present in the binary

[ghost]

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

$ go version
go version go1.18 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/kusattapan/.cache/go-build"
GOENV="/home/kusattapan/.config/go/env"
GOEXE=""
GOEXPERIMENT=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
GOMODCACHE="/home/kusattapan/go/pkg/mod"
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/home/kusattapan/go"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/usr/lib/go-1.18"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/lib/go-1.18/pkg/tool/linux_amd64"
GOVCS=""
GOVERSION="go1.18"
GCCGO="gccgo"
GOAMD64="v1"
AR="ar"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD="/home/kusattapan"
GOWORK=""
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-build411400481=/tmp/go-build -gno-record-gcc-switches"

What did you do?

What did you expect to see?

Only machine code, like c.
I don't like to include my information in the binary.

What did you see instead?

I passed build flag "-s -w" to compile it. However all my sensitive informations (All function names Variable names Package names my pc username C:\Users\xxx) are present in the binary.

[seankhliao]

Without it you wouldn't have things like reflect or stacktraces
see also #50501

closing as working as intended

[ghost]

ok thank you.

[go101]

reflect doesn't need and stacktraces doesn't require such info.

@kusattapan1 Have you tired -trimpath?

[ghost]

v2 beta

I didn't know there was such function!

reflect doesn't need and stacktraces doesn't require such info.

@kusattapan1 Have you tired -trimpath?

I didn't know there was such function! thank you. Apart from pc name function names and variable names are still present in my binary. Is there any way to remove it?

[go101]

There is a project for this: https://github.com/burrowers/garble
I never tried it.

[ghost]

There is a project for this: https://github.com/burrowers/garble I never tried it.

It worked for me. thank you! wish native golang had such a feature...