libabigail/include
Dodji Seketeli f95af3a89a Do not compare access specs for member types & functions
It turns that in some DWARF (e.g, from the r300_dri.so binary in bug
libabigail/19024) the same class Foo can be declared as a struct, and
later defined as a class.  Or the other way around.

In some cases, Foo can be declared as a struct, have a member type
Foo::Type with no access specifier, and later that member type is
still present with no access specifier when Foo is defined as a class.
So when comparing Foo::Type (from struct Foo) against Foo::Type (from
class Foo) we must not consider the access specification of Type,
otherwise, as in the first case it's 'public' and in the second case
it's 'private', the two member types would be considered different.

And something similar happens for member function declarations too.

This patch thus avoids comparing access specifiers for member types
and functions.  Though it can be considered as a regression compared
to what was being done before, access specifiers don't have an impact
on ABI per se.  And they can cause noise in the result, as we are
seeing here.

	* include/abg-fwd.h (is_function_decl): Declare a new overload.
	* src/abg-ir.cc (is_function_decl): Define a new overload.
	(equals): In the overload for decl_base, do not compare access
	specifiers when comparing member functions and types.
	* tests/data/test-diff-dwarf/test0-report.txt: Adjust.
	* tests/data/test-diff-filter/test0-report.txt: Likewise.
	* tests/data/test-diff-filter/test01-report.txt: Likewise.
	* tests/data/test-diff-filter/test30-pr18904-rvalueref-report0.txt: Likewise.
	* tests/data/test-diff-filter/test31-pr18535-libstdc++-report-0.txt: Likewise.
	* tests/data/test-diff-filter/test4-report.txt: Likewise.

Signed-off-by: Dodji Seketeli <dodji@redhat.com>
2015-10-15 13:50:48 +02:00
..
abg-comp-filter.h Bug 17649 Avoid endless looping on diff graph with cycles 2015-02-21 15:16:48 +01:00
abg-comparison.h Bug 17340 - Support pointers and references to functions 2015-09-30 21:20:42 +02:00
abg-config.h Update copyright years 2015-01-07 17:52:10 +01:00
abg-corpus.h Bug 19037 - Make ABI corpus support several functions with same symbol 2015-10-06 13:32:12 +02:00
abg-diff-utils.h Constify some diff-utils functor operators 2015-09-21 10:46:06 +02:00
abg-dwarf-reader.h Adjust {s,g}et_show_stats() to use a reference 2015-09-07 23:42:17 +02:00
abg-fwd.h Do not compare access specs for member types & functions 2015-10-15 13:50:48 +02:00
abg-hash.h Update copyright years 2015-01-07 17:52:10 +01:00
abg-ini.h Support source_location_not_in and source_location_not_regexp suppressions 2015-09-16 20:54:40 +02:00
abg-ir.h Bug 19023 - Type canonicalization is sensitive to struct-ness 2015-10-07 00:41:32 +02:00
abg-libxml-utils.h Update copyright years 2015-01-07 17:52:10 +01:00
abg-libzip-utils.h Update copyright years 2015-01-07 17:52:10 +01:00
abg-reader.h Introduce the concept of environment 2015-09-07 23:35:29 +02:00
abg-sptr-utils.h Update copyright years 2015-01-07 17:52:10 +01:00
abg-tools-utils.h Add a missing function declaration 2015-09-21 15:22:35 +02:00
abg-traverse.h Canonicalize types either early or late after TU reading 2015-02-18 21:32:37 +01:00
abg-version.h.in
abg-viz-common.h Update copyright years 2015-01-07 17:52:10 +01:00
abg-viz-dot.h Update copyright years 2015-01-07 17:52:10 +01:00
abg-viz-svg.h Update copyright years 2015-01-07 17:52:10 +01:00
abg-writer.h Update copyright years 2015-01-07 17:52:10 +01:00
Makefile.am Expose a new libabigail::tools_utils namespace 2015-01-08 12:28:14 +01:00