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Dodji Seketeli 4ce7f69dac Identify a function using its symbol name and version 
When a function symbol S has several versions and several different
functions with different names have those different versions of S as
underlying symbols, libabigail could mistakenly take one function for
another.  This is because there are cases where libabigail identifies
the function using its symbol name without taking the version name
into account.

This patch fixes that.

	* src/abg-default-reporter.cc (default_reporter::report): In C,
	tell the user about the underlying function symbol name only if
	said symbol name is different from the name of the function.
	* src/abg-ir.cc (function_decl::get_id): If the function has an
	underlying symbol, use the symbol name and version as the function
	ID.  But if the function symbol has an alias then use the linkage
	name as the ID.
	* tests/data/test-diff-pkg/elfutils-debuginfo-0.170-4.el7.x86_64.rpm:
	New binary test input.
	* tests/data/test-diff-pkg/elfutils-debuginfo-0.171-1.el7.x86_64.rpm: Likewise.
	* tests/data/test-diff-pkg/elfutils-devel-0.170-4.el7.x86_64.rpm: Likewise.
	* tests/data/test-diff-pkg/elfutils-devel-0.171-1.el7.x86_64.rpm: Likewise.
	* tests/data/test-diff-pkg/elfutils-libs-0.170-4.el7.x86_64.rpm: Likewise.
	* tests/data/test-diff-pkg/elfutils-libs-0.171-1.el7.x86_64.rpm: Likewise.
	* tests/data/test-diff-pkg/elfutils-libs-0.170-4.el7.x86_64-multiple-sym-vers-report-0.txt:
	New reference test output.
	* tests/data/Makefile.am: Add the new test material above to
	source distribution.
	* tests/test-diff-pkg.cc (in_out_specs): Integrate the new test
	inputs above into the harness.

Signed-off-by: Dodji Seketeli <dodji@redhat.com>
2018-06-08 05:12:24 +02:00
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 Represent sizes and offsets in bytes and hexadecimal values 2018-04-30 17:11:40 +02:00
include Explicitely detect anonymous data member changes 2018-06-06 14:07:10 +02:00
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 Identify a function using its symbol name and version 2018-06-08 05:12:24 +02:00
tests Identify a function using its symbol name and version 2018-06-08 05:12:24 +02:00
tools Represent sizes and offsets in bytes and hexadecimal values 2018-04-30 17:11:40 +02:00
.gitignore Bug 22722 - Make fedabipkgdiff and its tests support both python 3 and 2 2018-03-29 13:46:50 +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 Update ChangeLog 2018-05-17 10:51:26 +02:00
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 Bump version to 1.4 2018-06-06 14:07:17 +02:00
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 Make the "upload-release" target be usable in parallel 2018-03-06 18:08:22 +01:00
NEWS Update NEWS file for 1.3 release 2018-05-17 10:38:09 +02:00
README Fix wording in README 2015-09-05 10:30:00 +02:00
release-text-template.txt Update the release text template after 1.0 2017-11-22 15:55:43 +01:00
update-copyright.sh Update copyright notice for all source files 2018-01-08 18:24:26 +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.