Hi,

I'm seeing various test suite failures in the 0.158 on various
arches.  I'm currently looing at powerpc since that's the only
Debian release architecture that's having the problem, but I see
it on various non-release arches too.

The test-suite.log file contains:
==========================================
   elfutils 0.158: tests/test-suite.log
==========================================

# TOTAL: 113
# PASS:  108
# SKIP:  3
# XFAIL: 0
# FAIL:  2
# XPASS: 0
# ERROR: 0

.. contents:: :depth: 2

FAIL: run-backtrace-native.sh
=============================

0x100000        0x103000        [vdso: 14111]
0x20474000      0x20601000      /lib/powerpc-linux-gnu/libc-2.18.so
0x20614000      0x2063d000      /lib/powerpc-linux-gnu/libpthread-2.18.so
0x2064f000      0x20662000      /home/kroeckx/elfutils-0.158/tests/backtrace-child
0x40000000      0x40033000      /lib/powerpc-linux-gnu/ld-2.18.so
TID 14111:
# 0 0x20626810          raise
TID 14112:
# 0 0x20626810          raise
/home/kroeckx/elfutils-0.158/tests/backtrace: dwfl_thread_getframes: No DWARF information found
/home/kroeckx/elfutils-0.158/tests/backtrace: dwfl_thread_getframes: No DWARF information found
backtrace: backtrace.c:68: callback_verify: Assertion `seen_main' failed.
./test-subr.sh: line 84: 14110 Aborted                 (core dumped) LD_LIBRARY_PATH="${built_library_path}${LD_LIBRARY_PATH:+:}$LD_LIBRARY_PATH" $VALGRIND_CMD "$@"
backtrace-child: no main

SKIP: run-backtrace-data.sh
===========================

/home/kroeckx/elfutils-0.158/tests/backtrace-data: Unwinding not supported for this architecture
data: arch not supported

FAIL: run-backtrace-dwarf.sh
============================

0xfdf8e08       raise
/home/kroeckx/elfutils-0.158/tests/backtrace-dwarf: dwfl_thread_getframes: No DWARF information found
dwarf: no main
rmdir: failed to remove 'test-14137': Directory not empty

SKIP: run-backtrace-native-biarch.sh
====================================


SKIP: run-backtrace-native-core-biarch.sh
=========================================


It seems that for --backtrace-exec it thinks it has support for
unwinding information even when it doesn't and then fails.


Kurt