Bug#892167: gcc-8: go and libgo testsuites fails on amd64 (and other arches)

[Svante Signell <svante.signell@gmail.com>]

Source: gcc-8
Version: 8-20180218-1
Severity: important
Tags: sid, buster
Usertags: testsuite, gccgo, libgo, amd64

Hi,

Running the testsuite for go and libgo with the command

make -C build check-go 2>&1 | tee ../make-check-go-8-8-20180218-1.log

reveals that most go tests fails:
(The test suite is disabled in the buildds compilation of gcc-8)

tail build/gcc/testsuite/go/go.sum

             === go Summary ===

# of expected passes            518
# of untested testcases         834

This is due to the following:
less build/gcc/testsuite/go/go.log
checksyms: found unexpected symbol "__libc_start_main@@GLIBC_2.2.5"
FAIL: checksyms


Also four libgo tests fail:

tail build/x86_64-linux-gnu/libgo/libgo.sum

                === libgo Summary for unix ===

# of expected passes            158
# of unexpected failures        4

less  build/x86_64-linux-gnu/libgo/libgo.log
FAIL: crypto/sha1
FAIL: golang_org/x/crypto/chacha20poly1305/internal/chacha20
FAIL: golang_org/x/crypto/curve25519
FAIL: golang_org/x/net/lex/httplex

All fails are due to: (the error is repeated hundreds of times)

/tmp/ccjPhx1C.s:9920: Error: leb128 operand is an undefined symbol:
.LVU42
FAIL: crypto/sha1

/tmp/ccJQhkXG.s:8490: Error: leb128 operand is an undefined symbol:
.LVU355
FAIL: golang_org/x/crypto/chacha20poly1305/internal/chacha20

/tmp/ccsHI96b.s:18224: Error: leb128 operand is an undefined symbol:
.LVU1591
FAIL: golang_org/x/crypto/curve25519


/tmp/ccidCXTz.s:17050: Error: leb128 operand is an undefined symbol:
.LVU531
FAIL: golang_org/x/net/lex/httplex

The above errors does also happen on other atchtectures, but only
reported here for amd64.

Thanks!