On Mon, Aug 8, 2016 at 11:14 AM, Lynn A. Boger
<laboger@linux.vnet.ibm.com> wrote:
> The libgo tests on ppc64le and ppc64 have all been failing in
> gcc-testresults since this change went in and continues to fail after the
> recent fixes for failures on other platforms.
>
> Built myself and got the same failures.  I set keep=true in gotest to save
> the test dirs.  Just running a single package:
>
> make bufio/check
> file /home/boger/gccgo.work/trunk/bld/../src/libgo/go/bufio/bufio.go not
> found
> Keeping gotest9734
> FAIL: bufio
> Makefile:3645: recipe for target 'bufio/check' failed
> make: *** [bufio/check] Error 1
> boger@willow3:~/gccgo.work/trunk/bld/powerpc64le-linux/libgo$ ls
> /home/boger/gccgo.work/trunk/bld/../src/libgo/go/bufio/bufio.go
> /home/boger/gccgo.work/trunk/bld/../src/libgo/go/bufio/bufio.go
> boger@willow3:~/gccgo.work/trunk/bld/powerpc64le-linux/libgo$ file
> /home/boger/gccgo.work/trunk/bld/../src/libgo/go/bufio/bufio.go
> /home/boger/gccgo.work/trunk/bld/../src/libgo/go/bufio/bufio.go: ASCII text

I found the problem.  I always configure with a relative srcdir.  You
are using an absolute srcdir.  The recent changes to use build tags
changed the libgo Makefile so that when invoked with with an absolute
srcdir it would pass absolute path names to the gotest script.  That
never worked.  This patch makes it work, and should fix your problem.
Bootstrapped and ran Go testsuite on x86_64-pc-linux-gnu with a
relative srcdir and an absolute srcdir.  Committed to mainline.

Ian