Commit 314e9d7d "readelf: Handle .debug_info first if any other debug
section needs it" introduced a regression when handling multiple files.
The implicit and explicit printing of debuginfo weren't reset and so
the second file would not show (or scan) the .debug_info section when
needed.

Fix by resetting the implicit and explicit section printing flags.
Add a testcase that prints the .debug_loc section for two files and
check that the CUs are resolved.

Signed-off-by: Mark Wielaard <mark@klomp.org>

The parallel-tests option was introduced in automake 1.11 and is the
default since automake 1.13. All tests can now be ran in parallel with
make check -j. To enable this all tests are ran in their own temporary
directory so they don't stomp on each others input or output files.
On my machine (4 cores) make check takes ~20 seconds, but now with
make check -j8 takes only ~4 seconds.

ChangeLog:

       * configure.ac (AM_INIT_AUTOMAKE): Request parallel-tests.

tests/ChangeLog:

       * Makefile.am (installed_TESTS_ENVIRONMENT): Export environment,
       remove wrapper.
       (TESTS_ENVIRONMENT): Likewise.
       (installed_LOG_COMPILER): New variable defining wrapper.
       (LOG_COMPILER): Likewise.
       * run-*.sh: Fixup location of input and output files.
       * test-subr.sh: Create test_dir, pushd to execute test in.
       (trap): Remove test_dir.
       (testfiles): Use abs_srcdir.
       (installed_testrun): Match on abs_builddir or abs_top_builddir.
       (self_test_files): Adjust path.

Signed-off-by: Mark Wielaard <mjw@redhat.com>

* Change name from "Red Hat elfutils" to "elfutils".
* Update license of standalone tools and test from GPLv2 to GPLv3+.
* Change license of libraries from GPLv2+exception to GPLv2/LGPLv3+.
* Add Developer Certificate of Origin based contributor policy.

top-level:

- COPYING: Upgraded from GPLv2 to GPLv3.
- CONTRIBUTING, COPYING-GPLv2, COPYING-LGPLv3: New files.
- NEWS: Added note about new contribution and license policy.
- Makefile.am: Updated to GPLv3, added new files to EXTRA_DIST.
- configure.ac: Update to GPLv3, changed AC_INIT name to 'elfutils'.

backends, lib, libasm, libcpu, libdw, libdwfl, libebl, libelf:

- All files updated to GPLv2/LGPLv3+. Except some very small files
  (<5 lines) which didn't have any headers at all before, the linker
  .maps files and the libcpu/defs files which only contain data and
  libelf/elf.h which comes from glibc and is under LGPLv2+.

config:

- elfutils.spec.in: Add new License: headers and new %doc files.
- Update all license headers to GPLv2/LGPLv3+ for files used by libs.

src, tests:

- All files updated to GPLv3+. Except for the test bz2 data files, the
  linker maps and script files and some very small files (<5 lines)
  that don't have any headers.

Signed-off-by: Richard Fontana <rfontana@redhat.com>
Signed-off-by: Mark Wielaard <mjw@redhat.com>