[pkg-golang-devel] Bug#807455: golang-src: includes race detector runtime files not built from source in the source package

[Michael Hudson-Doyle]

On 3 February 2016 at 21:04, Michael Hudson-Doyle
<michael.hudson at canonical.com> wrote:
> On 3 February 2016 at 19:08, Tianon Gravi <tianon at debian.org> wrote:
>> On 8 December 2015 at 18:24, Michael Hudson-Doyle
>> <michael.hudson at canonical.com> wrote:
>>> The files installed as /usr/share/go/src/runtime/race/*.syso are not built
>>> during package build, but rather come directly from the Go source distribution.
>>> To ensure that they are built from what they claim to be, in Ubuntu we do not
>>> distribute these files in the golang-src package but rather build them in a
>>> separate golang-race-detector-runtime package which golang-go Recommends:. It
>>> would be nice if Debian could steal this work :-)
>>
>> I'm definitely keen on this one!
>
> Yay.
>
>> I think my issue with making it happen (last I looked into it) was
>> that the files in question needed to come from a separate source (LLVM
>> was it? [1]), and the exact versioning necessary was a little strange,
>> and it was sources that already exist in the Debian archive for
>> another package so I wasn't really clear on whether that's kosher or
>> whether we should be talking to the existing package maintainer to
>> keep things sane.  Am I remembering this correctly?
>
> Yes, your memory is pretty accurate. The source in question is the
> "compiler-rt" runtime libraries: http://compiler-rt.llvm.org/. The
> compiler-rt source is copied into the gcc and llvm trees -- although
> on checking, the copy in the gcc source lacks the go integration bits.
> The one in llvm-toolchain appears to have everything (in fact it's a
> multi orig source package, and one of the orig tarballs is the
> compiler-rt stuff), so the golang-race-detector-runtime could be built
> from the llvm-toolchain source package. The only question is around
> versioning then -- I don't have any intuition as to how much
> difference there is between the revisions go builds they're objects
> from and the revision for the compiler-rt that's part of the current
> llvm package at all. I've just wussed out of thinking about that so
> far. I guess I could ask upstream...

I've finally gotten around to asking on golang-dev:
https://groups.google.com/d/msg/golang-dev/7tmyNA9Dx6s/j_j3b7SKBQAJ

Cheers,
mwh