sparc failures #1216
Description
ola fails to build on Debian sparc:
FAIL: libs/acn/E131Tester
=========================
[...]
.libs/acn/BaseInflator.cpp:277: In BaseInflator::HandlePDUData, someone forgot to add a handler, vector id 3
.libs/acn/BaseInflator.cpp:277: In BaseInflator::HandlePDUData, someone forgot to add a handler, vector id 3
.libs/acn/PDU.cpp:56: PDU Pack: buffer too small, required 42, got 41
.libs/acn/PDU.cpp:56: PDU Pack: buffer too small, required 77, got 76
........../include/ola/io/MemoryBlockPool.h:50: new block allocated at @0x100001baa00
.Received Bus error
/<<PKGBUILDDIR>>/common/.libs/libolacommon.so.0(+0x1e3098)[0xffff800100413098]
/lib/sparc64-linux-gnu/libpthread.so.0(+0x13a60)[0xffff800100c53a60]
/<<PKGBUILDDIR>>/libs/acn/.libs/E131Tester(+0x1eed0)[0x1000001eed0]
/<<PKGBUILDDIR>>/libs/acn/.libs/E131Tester(+0x1e93c)[0x1000001e93c]
/<<PKGBUILDDIR>>/libs/acn/.libs/E131Tester(+0x5e178)[0x1000005e178]
/<<PKGBUILDDIR>>/libs/acn/.libs/E131Tester(+0x6d3a8)[0x1000006d3a8]
[...]
and
FAIL: libs/acn/TransportTester
==============================
[...]
libs/acn/TCPTransport.cpp:93: done read, bytes outstanding is 0
libs/acn/TCPTransport.cpp:99: state is 3
libs/acn/TCPTransport.cpp:206: Got PDU, data length is 14, expected 14
Received Bus error
/<<PKGBUILDDIR>>/common/.libs/libolacommon.so.0(+0x1e3098)[0xffff800100413098]
/lib/sparc64-linux-gnu/libpthread.so.0(+0x13a60)[0xffff800100c53a60]
/<<PKGBUILDDIR>>/libs/acn/.libs/TransportTester(+0xff70)[0x1000000ff70]
/<<PKGBUILDDIR>>/libs/acn/.libs/TransportTester(+0xf270)[0x1000000f270]
/<<PKGBUILDDIR>>/libs/acn/.libs/TransportTester(+0xd974)[0x1000000d974]
/<<PKGBUILDDIR>>/libs/acn/.libs/TransportTester(+0x1701c)[0x1000001701c]
/<<PKGBUILDDIR>>/libs/acn/.libs/TransportTester(+0x16298)[0x10000016298]
/<<PKGBUILDDIR>>/libs/acn/.libs/TransportTester(+0x1bc44)[0x1000001bc44]
/<<PKGBUILDDIR>>/libs/acn/.libs/TransportTester(+0x1ab34)[0x1000001ab34]
/<<PKGBUILDDIR>>/libs/acn/.libs/TransportTester(_ZN3ola3acn16TCPTransportTest7ReceiveEv+0x2c)[0x10000009d38]
[...]
(edited both error messages for length; for the full messages, see the build log above)
A bus error usually signals unaligned access, which is probably a result from pointer magic that isn't strictly according to spec.
Note: SPARC isn't a release candidate architecture in Debian, so the continued support of ola in Debian stretch does not depend on this. However, it might be a good idea to look into this anyway.