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Mark Wielaard a9f5fb4089 Add --no-write-default-sizes option. 
abidw will write out the exact same size-in-bits address for every
pointer type, reference type, function declaration and function type
even though it is always the same as the translation unit address
size. When giving the --no-write-default-sizes option these aren't
written out anymore. The reader is updated to set the default size
when none is given in the XML description.

Even though size and alignment are handled together in the reader,
default alignment is still set to zero, following commit a05384675

Note that this isn't backward compatible with older libabigail
readers, which will set the size to zero when none is given. So this
option isn't the default.

	* doc/manuals/abidw.rst: Document --no-write-default-sizes.
	* include/abg-writer.h (set_write_default_sizes): New function
	declaration.
	(set_common_options): Call set_write_default_sizes.
	* src/abg-reader.cc (build_function_decl): Get default size.
	(build_pointer_type_def): Likewise.
	(build_reference_type_def): Likewise.
	(build_function_type): Likewise.
	* src/abg-writer.cc (write_context): Add m_write_default_sizes
	bool.
	(get_write_default_sizes): New method.
	(set_write_default_sizes): Likewise.
	(write_size_and_alignment): Add default size and alignment
	parameters.
	(set_write_default_sizes): New function.
	(write_type_decl): Set default size and alignment.
	(write_pointer_type_def): Likewise.
	(write_reference_type_def): Likewise.
	(write_function_decl): Likewise.
	(write_function_type): Likewise.
	(write_class_decl_opening_tag): Likewise.
	(write_union_decl_opening_tag): Likewise.
	* tests/test-types-stability.cc (perform): Also test --abidiff
	with --no-write-default-sizes.
	* tools/abidw.cc (option): Add default_sizes bool.
	(parse_command_line): Parse --no-write-default-sizes.
	(display_usage): Add doc string for --no-write-default-sizes.

Signed-off-by: Mark Wielaard <mark@klomp.org>
Signed-off-by: Dodji Seketeli <dodji@redhat.com>
2020-04-29 11:56:40 +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 Add --no-write-default-sizes option. 2020-04-29 11:56:40 +02:00
include Add --no-write-default-sizes option. 2020-04-29 11:56:40 +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 Add --no-write-default-sizes option. 2020-04-29 11:56:40 +02:00
tests Add --no-write-default-sizes option. 2020-04-29 11:56:40 +02:00
tools Add --no-write-default-sizes option. 2020-04-29 11:56:40 +02:00
.clang-format clang-format: Better approximation for binary operators and assignments 2020-01-21 18:38:04 +00:00
.gitignore .gitignore: Add libabigail-?.* *.orig files 2019-05-22 14:34:23 +02:00
abigail.m4 For usage from within GCC set header path to $includedir/libabigail 2013-08-14 16:10:15 +02:00
AUTHORS
ChangeLog Update ChangeLog 2020-02-26 12:08:52 +01:00
COMMIT-LOG-GUIDELINES Update the COMMIT-LOG-GUIDELINES file 2016-05-22 23:20:12 +02:00
COMPILING Fix typo in COMPILING. 2020-02-03 13:49:54 +01:00
configure.ac configure: add support for memory sanitizer (--enable-msan) 2020-03-18 22:22:35 +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 Add default suppression specification for the libvirt project 2018-10-11 10:59:54 +02:00
gen-changelog.py gen-changelog.py: Update the script for python3 2020-02-26 12:06:17 +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: add distcheck-fast target 2020-04-20 14:38:32 +02:00
NEWS Update NEWS file for 1.7 2020-02-26 12:07:29 +01:00
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 year to 2020 2020-02-21 17:05:01 +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.