Re: libgo patch committed: Update to Go 1.5 release

["Lynn A. Boger" <laboger@linux.vnet.ibm.com>]

[-- Attachment #1: Type: text/plain, Size: 1866 bytes --]

I can see the problem in gotest.  It has to do with the setting of GOARCH.

Previously GOARCH was being set based on the --goarch argument, but now
goarch is being set.  Not sure both GOARCH and goarch are needed?

I've attached a patch I used to get it to work.  It worked for ppc64le 
and ppc64
with 64 and 32 bit.

On 11/03/2015 11:34 AM, Ian Lance Taylor wrote:
> On Tue, Nov 3, 2015 at 7:48 AM, Lynn A. Boger
> <laboger@linux.vnet.ibm.com> wrote:
>> We are seeing failures on all the libgo tests when gccgo is built with the
>> latest trunk
>> on ppc64 (BE) and when running the testsuite for 64 bit.  The failures
>> do not occur if run on ppc64 BE with m32 and do not occur on ppc64le.
>>
>> The messages say this:
>>
>> make[3]: Entering directory
>> `/home/boger/gccgo.work/trunk/bld/powerpc64-linux/libgo'
>> gotest: warning: no tests matching Test([^a-z].*)? in _gotest_.o _xtest_.o
>> FAIL: bufio
>> make[3]: *** [bufio/check] Error 1
>> gotest: warning: no tests matching Test([^a-z].*)? in _gotest_.o _xtest_.o
>> FAIL: bytes
>> make[3]: *** [bytes/check] Error 1
>> gotest: warning: no tests matching Test([^a-z].*)? in _gotest_.o _xtest_.o
>> FAIL: errors
> I don't know that I have access to a big-endian PPC GNU/Linux machine any more.
>
> My first guess would be that somehow this case in libgo/testsuite/gotest
>
> text="T"
> case "$GOARCH" in
> ppc64*) text="[TD]" ;;
> esac
>
> is not triggering.  Although it checks for ppc64*, I think it's only
> required on PPC64 ABI v1 (big-endian) and is not required for ABI v2
> (little endian).
>
> You could try changing to GOARCH there to goarch to see if it helps,
> although as far as I can see either should work.
>
> Otherwise, cd to the libgo working directory, run "make bufio/check",
> figure out how it is running gotest, and run "bash -xv
> gotest_invocation" and send it here.
>
> Ian
>
>


[-- Attachment #2: gccgo-gotest1.5-fix.diff --]
[-- Type: text/x-patch, Size: 638 bytes --]

Index: libgo/testsuite/gotest
===================================================================
--- libgo/testsuite/gotest	(revision 229711)
+++ libgo/testsuite/gotest	(working copy)
@@ -35,7 +35,6 @@
 pkgpath=
 prefix=
 dejagnu=no
-GOARCH=""
 timeout=240
 testname=""
 bench=""
@@ -118,15 +117,6 @@
 		dejagnu=`echo $1 | sed -e 's/^--dejagnu=//'`
 		shift
 		;;
-	x--goarch)
-		GOARCH=$2
-		shift
-		shift
-		;;
-	x--goarch=*)
-		GOARCH=`echo $1 | sed -e 's/^--goarch=//'`
-		shift
-		;;
 	x--timeout)
 		timeout=$2
 		shift
@@ -496,7 +486,7 @@
 
 {
 	text="T"
-	case "$GOARCH" in
+	case "$goarch" in
 	ppc64*) text="[TD]" ;;
 	esac