Cannot extract go version info on minimal/reproducible/stripped binaries built with go1.14+

[liggitt]

This worked on go1.13:

docker run -it --entrypoint=bash golang:1.13
$ go get -d rsc.io/goversion
$ go install -ldflags="-s -w -buildid=" rsc.io/goversion
$ goversion `which goversion`

/go/bin/goversion go1.13.15

But on 1.14+, the same steps result in an error about there being no symbol section:

docker run -it --entrypoint=bash golang:1.14
$ go get -d rsc.io/goversion
$ go install -ldflags="-s -w -buildid=" rsc.io/goversion
$ goversion `which goversion`

/go/bin/goversion: no symbol section

On 1.15:

docker run -it --entrypoint=bash golang:1.15
$ go get -d rsc.io/goversion
$ go install -ldflags="-s -w -buildid=" rsc.io/goversion
$ goversion `which goversion`

/go/bin/goversion: no symbol section

[liggitt]

testcases for default and symbol-stripped builds using standard/boringcrypto go versions 1.9-1.15 at #15

[listx]

FTR the -s flag is specifically for omitting the symbol table so it would appear that the 1.14 and 1.15 golang compilers are actually working correctly.

[liggitt]

yeah, this library has the ability to extract version info directly from well-known assembly produced by the go compiler. it appears that needs updating for go 1.14+