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Dodji Seketeli 929db0a880 Detect and report changes in ELF architecture
Libabigail does not take in account the architecture of the ELF file
it reads.  This patch changes that to represent the ELF architecture
as a string, detect when that architecture changes accross two corpora
being compared and emit a report about that change.

	* configure.ac: Detect the presence of libebl.a and add it to the
	list of library we depend on to build libabigail.  Report when
	libelf.so is not found.
	* include/abg-comparison.h:
	(diff_context::show_architecture_change): Declare new accessors.
	(corpus_diff::architecture_changed): Declare new method.
	* include/abg-corpus.h (corpus::{get,set}_architecture_name):
	Declare new accessors.
	* src/abg-comparison.cc
	(diff_context::priv::show_architecture_change_): New data member.
	(diff_context::priv::priv): Initialize it.
	(diff_context::show_architecture_change): Define new accessors.
	(function_decl_diff::report): Report when the size/alignment of
	the function address changes.
	(corpus_diff::priv::architectures_equal_): New data member.
	(corpus_diff::priv::priv): Initialize it.
	(corpus_diff::priv::emit_diff_stats): Take in account changes of
	architecture.
	(corpus_diff::architecture_changed): Define new method.
	(corpus_diff::length): Take in account changes of architecture.
	(corpus_diff::report): Report about changes of architecture.
	(compute_diff): In the overload for corpus_diff_sptr, detect
	changes fo architecture.
	* src/abg-corpus.cc (corpus_priv::architecture_name): Define new
	data member.
	(corpus::{get,set}_architecture_name): Define new method.
	* src/abg-dwarf-reader.cc: Include elfutils/libebl.h to use
	ebl_openbackend() and ebl_backend_name()
	(read_context::elf_architecture_): Define new data member.
	(read_context::elf_architecture): Define new accessor.
	(read_context::{load_elf_architecture, load_remaining_elf_data}):
	Define new methods.
	(read_corpus_from_elf): Use ctxt.load_remaining_elf_data() in lieu
	of ctxt.load_dt_soname_and_needed.  Stick the architecture into
	the corpus.
	* src/abg-reader.cc (read_corpus_from_input): Read the
	'architecture' XML property.
	* src/abg-writer.cc (write_corpus_to_native_xml): Write the
	'architecture' XML property.
	* tests/data/test-diff-dwarf/libtest-23-diff-arch-v0-32.so: New
	test input file.
	* tests/data/test-diff-dwarf/libtest-23-diff-arch-v0-64.so:
	Likewise.
	* tests/data/test-diff-dwarf/test-23-diff-arch-report-0.txt:
	Likewise.
	* tests/data/test-diff-dwarf/test-23-diff-arch-v0.cc: Source code
	for the binary test input files above.
	* tests/data/Makefile.am: Add the new test input files to the
	source distribution.
	* tests/test-diff-dwarf.cc (in_out_specs): Add the new test input
	data to the set of input data to run this test harness over.
	* tests/test-read-dwarf.cc (main): Do not take the architecture in
	account during comparisons.

Signed-off-by: Dodji Seketeli <dodji@redhat.com>
2015-01-07 17:52:10 +01:00
doc Include libabigail-website.doxy file in EXTRA_DIST 2015-01-06 15:40:18 +01:00
include Detect and report changes in ELF architecture 2015-01-07 17:52:10 +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 Detect and report changes in ELF architecture 2015-01-07 17:52:10 +01:00
tests Detect and report changes in ELF architecture 2015-01-07 17:52:10 +01:00
tools Add a --dump-diff-tree to abidiff for debugging purposes 2014-12-28 11:36:52 +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 Added a ChangeLog that is auto-generated by gen-changelog.py 2014-11-18 23:18:06 +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 White space fix in COMPILING 2013-08-22 17:40:50 +02:00
config.h.in Make the use of a C++-11 compiler optional 2014-11-05 10:45:07 +01:00
configure.ac Detect and report changes in ELF architecture 2015-01-07 17:52:10 +01:00
CONTRIBUTING Fix checkout & build instructions 2014-01-14 15:39:34 +01:00
COPYING Leave license stuff for later 2013-02-28 13:20:19 +01:00
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 INSTALL file is not yet in the distribution 2014-11-19 10:21:06 +01:00
README Prepare for publishing 2013-07-23 23:13:55 +02:00
test21-type-suppr-0.suppr Pimplify abigail::comparison::diff type 2014-09-19 12:28:18 +02:00
test21-type-suppr-report-0.txt Pimplify abigail::comparison::diff type 2014-09-19 12:28:18 +02:00

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 comparing
two ABI Corpuses, 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.