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Dodji Seketeli 67435cf6cd Bug 19867 - abipkgdiff skips symbolic links 
When comparing two directories, abipkgdiff skips symbolic links
pointing to ELF binaries altogether.  It only consider regular files.
This is a problem when abipkgdiff is given two directories that only
contain symbolic links.  In that case, abipkgdiff just performs no
comparison.

This patch makes abipkgdiff resolve the symbolic link to its target
file.

	* include/abg-tools-utils.h (maybe_get_symlink_target_file_path):
	Declare new function.
	* src/abg-tools-utils.cc (get_stat): Use lstat here, not stat.
	Update comment.
	* tools/abipkgdiff.cc (first_package_tree_walker_callback_fn)
	(second_package_tree_walker_callback_fn): Follow symbolic links to
	elf files to get their target paths, and only work with that
	target path.
	(maybe_get_symlink_target_file_path): Define new function.
	* test-diff-pkg/symlink-dir-test1-report0.txt New test material.
	* test-diff-pkg/symlink-dir-test1/dir1/symlinks/foo.o: Likewise.
	* test-diff-pkg/symlink-dir-test1/dir1/symlinks/libfoo.so: Likewise.
	* test-diff-pkg/symlink-dir-test1/dir1/targets/foo.c: Likewise.
	* test-diff-pkg/symlink-dir-test1/dir1/targets/foo.o: Likewise.
	* test-diff-pkg/symlink-dir-test1/dir1/targets/libfoo.so: Likewise.
	* test-diff-pkg/symlink-dir-test1/dir2/symlinks/foo.o: Likewise.
	* test-diff-pkg/symlink-dir-test1/dir2/symlinks/libfoo.so: Likewise.
	* test-diff-pkg/symlink-dir-test1/dir2/targets/foo.c: Likewise.
	* test-diff-pkg/symlink-dir-test1/dir2/targets/foo.o: Likewise.
	* test-diff-pkg/symlink-dir-test1/dir2/targets/libfoo.so: Likewise.
	* tests/data/Makefile.am: Add the new test material to source
	distribution.
	* tests/test-diff-pkg.cc (in_out_spec): Run this test harness
	over the new test material above.

Signed-off-by: Dodji Seketeli <dodji@redhat.com>
2016-03-25 13:52:02 +01:00
bash-completion Add the option of printing the file, line and column information about a type being reported. 2015-12-15 12:32:55 +01:00
doc Fix typo on the web page 2016-03-21 13:18:44 +01:00
include Bug 19867 - abipkgdiff skips symbolic links 2016-03-25 13:52:02 +01:00
m4 Delete ltsugar.m4 and pkg.m4 files from m4/ 2015-01-06 09:54:45 +01:00
scripts Initial DOT work. 2013-07-23 23:13:55 +02:00
src Bug 19867 - abipkgdiff skips symbolic links 2016-03-25 13:52:02 +01:00
tests Bug 19867 - abipkgdiff skips symbolic links 2016-03-25 13:52:02 +01:00
tools Bug 19867 - abipkgdiff skips symbolic links 2016-03-25 13:52:02 +01:00
.gitignore Update .gitignore 2014-11-01 12:10:06 +01:00
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 Fix typo in configure --enable-deb help text 2016-03-21 13:04:51 +01:00
COMMIT-LOG-GUIDELINES Allow introductory text in commit log and ignore it when generating ChangeLog 2014-11-18 23:18:06 +01:00
COMPILING Update mentions to the build dependencies in the doc 2016-02-24 21:53:03 +01:00
config.h.in Make abipkgdiff compare tar archives containing binaries 2015-08-22 14:32:20 +02:00
configure.ac Fix typo in configure --enable-deb help text 2016-03-21 13:04:51 +01:00
CONTRIBUTING Update the CONTRIBUTING file 2015-03-19 12:47:59 +01:00
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
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 Make make more silent. 2016-01-28 09:18:05 +01:00
NEWS Update NEWS file for 1.0.rc3 2016-03-08 08:42:37 +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

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.