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The Git repository of the Libabigail Project
c0de97846c
The private data pointers of libabigail IR types are usually managed
using shared_ptr. But performance profiling has shown that
de-referencing some of these private data shared_ptr can have a
noticeable performance impact. This is because de-referencing
shared_ptr involves some locking that show up on some performance
profile.
So, for decl_base, type_base, and function_decl, this patch replaces
the private data shared pointers by naked pointers. This speeds up
the access to private data members, especially during comparison of
class pointer, reference and function types. And that has a
noticeable impact when libabigail handles huge binaries with lots of
functions an type, like r300_dri.so.
* include/abg-ir.h ({decl_base, type_base, function_decl}::priv_)
Make this a naked pointer to priv, rather than a shared_ptr<priv>.
* src/abg-ir.cc (decl_base::~decl_base): Destroy the private data
pointer, aka pimpl pointer.
(type_base::~type_base): Likewise.
(function_decl::~function_decl): Likewise.
(class_decl::~class_decl): Likewise.
Signed-off-by: Dodji Seketeli <dodji@redhat.com>
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| bash-completion | ||
| doc | ||
| include | ||
| m4 | ||
| scripts | ||
| 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.