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Dodji Seketeli 933c744034 Bug 22438 - Emit a clear message when debug info is not found 
The alternate debug info file referred to a binary can be missing,
even though the rest of the debug info is not.  In that case,
libabigail starts loading the debug info and then it crashes when
trying to get DIEs that are part of the missing alternate debug info.

This patch detects when the alternate debug info is missing, so that
abidiff and abipkgdiff can gracefully bail out, yielding a meaningful
error message.

	* include/abg-dwarf-reader.h (enum abigail::dwarf_reader::status):
	Add a new STATUS_ALT_DEBUG_INFO_NOT_FOUND enumerator there.
	(refers_to_alt_debug_info): Declare new function.
	* src/abg-dwarf-reader.cc (read_corpus_from_elf): Detect when the
	referred-to alternate debug info file is not found and flip the
	STATUS_ALT_DEBUG_INFO_NOT_FOUND bit of the status accordingly.  If
	the debug info was found but not the alternate debug info, then do
	not try to read the debug info at all.
	(refers_to_alt_debug_info): Define new function.
	* tools/abidiff.cc (handle_error): Define new static function.
	(main): Use it, rather than handling errors preventing libabigail
	from reading the corpus on a case by case basis.
	tools/abipkgdiff.cc (compare): Handle the case where no alternate
	debug info was found.
	* tests/data/test-diff-pkg/libxfce4ui-devel-4.12.1-8.fc27.ppc64-self-report-0.txt:
	New test output reference.
	* tests/data/test-diff-pkg/libxfce4ui-devel-4.12.1-8.fc27.ppc64.rpm:
	New test input RPM.
	* tests/data/test-diff-pkg/libxfce4ui-devel-debuginfo-4.12.1-8.fc27.ppc64.rpm:
	Likewise.
	* tests/data/Makefile.am: Add the new test files above to source
	distribution.
	* tests/test-diff-pkg.cc (in_out_specs): Add a new test case from
	the new input files above.

Signed-off-by: Dodji Seketeli <dodji@redhat.com>
2017-11-21 11:09:00 +01:00
autoconf-archive Do not ignore valgrind checks returning an error 2017-02-27 10:01:15 +01:00
bash-completion Add --self-compare option in fedabipkgdiff 2017-05-31 16:21:14 +05:30
doc Wire the --no-show-locs option to abidw 2017-11-02 12:57:11 +01:00
include Bug 22438 - Emit a clear message when debug info is not found 2017-11-21 11:09:00 +01:00
m4 Delete ltsugar.m4 and pkg.m4 files from m4/ 2015-01-06 09:54:45 +01:00
scripts Clean up scripts/* 2017-04-14 04:14:12 -04:00
src Bug 22438 - Emit a clear message when debug info is not found 2017-11-21 11:09:00 +01:00
tests Bug 22438 - Emit a clear message when debug info is not found 2017-11-21 11:09:00 +01:00
tools Bug 22438 - Emit a clear message when debug info is not found 2017-11-21 11:09:00 +01:00
.gitignore Bug 19428 - New fedabipkgdiff utility 2016-05-13 00:42:36 +02:00
abigail.m4 For usage from within GCC set header path to $includedir/libabigail 2013-08-14 16:10:15 +02:00
AUTHORS Initial AUTHORS and README 2013-02-28 13:25:20 +01:00
ChangeLog Automatically Update ChangeLog for 1.0 2017-11-08 15:37:19 +01:00
COMMIT-LOG-GUIDELINES Update the COMMIT-LOG-GUIDELINES file 2016-05-22 23:20:12 +02:00
COMPILING Update documentation to require doxygen and python-sphinx for building 2016-04-27 15:53:40 +02:00
configure.ac Support systems where fts.h can't be used with _FILE_OFFSET_BITS set 2017-11-13 12:52:07 +01:00
CONTRIBUTING Control symbols exported from libabigail.so 2016-07-27 12:51:02 +02:00
COPYING Use a better wording for the COPYING file 2015-04-22 09:53:18 +02:00
COPYING-GPLV3 Update licence texts 2015-04-20 13:51:21 +02:00
COPYING-LGPLV2 Initial import of gen-changelog.py 2014-11-18 23:18:06 +01:00
COPYING-LGPLV3 LGPLv3 License the library 2013-07-23 23:13:55 +02:00
default.abignore Avoid comparing kernel.img file from the grub2 package 2017-07-03 17:43:30 +02:00
gen-changelog.py [gen-changelog] Make subject line always come first 2014-11-18 23:18:06 +01:00
install-sh Add missing autoconfiscation files into version control 2013-03-01 00:47:49 +01:00
libabigail.pc.in Make libxml2 a private dependency wrt pkconfig 2013-08-22 17:41:29 +02:00
ltmain.sh Add missing autoconfiscation files into version control 2013-03-01 00:47:49 +01:00
Makefile.am Control symbols exported from libabigail.so 2016-07-27 12:51:02 +02:00
NEWS Edit the NEWS file a tiny little bit for 1.0 2017-11-08 16:04:18 +01:00
README Fix wording in README 2015-09-05 10:30:00 +02:00
release-text-template.txt Add a release announcement text pattern 2016-01-08 12:15:30 +01:00
VISIBILITY Control symbols exported from libabigail.so 2016-07-27 12:51:02 +02:00

README 

This is the Application Binary Interface Generic Analysis and
Instrumentation Library.

It aims at constructing, manipulating, serializing and de-serializing
ABI-relevant artifacts.

The set of artifacts that we are intersted is made of quantities like
types, variable, fonctions and declarations of a given library or
program.  For a given library or program this set of quantities is
called an ABI corpus.

This library aims at (among other things) providing a way to compare
two ABI Corpora (apparently the plural of corpus is copora, heh,
that's cool), provide detailed information about their differences,
and help build tools to infer interesting conclusions about these
differences.

You are welcome to contribute to this project after reading the files
CONTRIBUTING and COMMIT-LOG-GUIDELINES files in the source tree.

Communicating with the maintainers of this project -- including
sending patches to be include to the source code -- happens via email
at libabigail@sourceware.org.