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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> |
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| m4 | ||
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| src | ||
| tests | ||
| tools | ||
| .gitignore | ||
| abigail.m4 | ||
| AUTHORS | ||
| ChangeLog | ||
| COMMIT-LOG-GUIDELINES | ||
| COMPILING | ||
| config.h.in | ||
| configure.ac | ||
| CONTRIBUTING | ||
| COPYING | ||
| COPYING-GPLV3 | ||
| COPYING-LGPLV2 | ||
| COPYING-LGPLV3 | ||
| gen-changelog.py | ||
| install-sh | ||
| libabigail.pc.in | ||
| ltmain.sh | ||
| Makefile.am | ||
| 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.