http://sourceware.org/bugzilla/show_bug.cgi?id=12919
--- Comment #11 from Vincenzo Innocente <vincenzo.innocente at cern dot ch>
2011-09-23 11:15:33 UTC ---
Indeed there is a long chain of function calls.
So I removed the visibility from the namespace in stl_algo.h
namespace std /* _GLIBCXX_VISIBILITY(default) */
and
c++ -O2 -Wl,--icf=all,--print-icf-sections -shared -fPIC
-fvisibility-inlines-hidden -ffunction-sections ICFproblem.cpp -o libbha.so
-fno-inline -fvisibility=hidden
no folding of the sorting stuff (even if now its all LOCAL HIDDEN)
readelf -sW libbha.so | grep -v UND | c++filt | grep move_median
80: 00000000000043b0 149 FUNC LOCAL HIDDEN 11 void
std::__move_median_first<__gnu_cxx::__normal_iterator<A**, std::vector<A*,
std::allocator<A*> > > >(__gnu_cxx::__normal_iterator<A**, std::vector<A*,
std::allocator<A*> > >, __gnu_cxx::__normal_iterator<A**, std::vector<A*,
std::allocator<A*> > >, __gnu_cxx::__normal_iterator<A**, std::vector<A*,
std::allocator<A*> > >)
89: 0000000000004d60 149 FUNC LOCAL HIDDEN 11 void
std::__move_median_first<__gnu_cxx::__normal_iterator<B**, std::vector<B*,
std::allocator<B*> > > >(__gnu_cxx::__normal_iterator<B**, std::vector<B*,
std::allocator<B*> > >, __gnu_cxx::__normal_iterator<B**, std::vector<B*,
std::allocator<B*> > >, __gnu_cxx::__normal_iterator<B**, std::vector<B*,
std::allocator<B*> > >)
98: 00000000000056e0 149 FUNC LOCAL HIDDEN 11 void
std::__move_median_first<__gnu_cxx::__normal_iterator<C**, std::vector<C*,
std::allocator<C*> > > >(__gnu_cxx::__normal_iterator<C**, std::vector<C*,
std::allocator<C*> > >, __gnu_cxx::__normal_iterator<C**, std::vector<C*,
std::allocator<C*> > >, __gnu_cxx::__normal_iterator<C**, std::vector<C*,
std::allocator<C*> > >)
[vinavx0] ~/public/ctest $ readelf -sW libbha.so | grep -v UND | c++filt | grep
introsort
83: 0000000000004560 120 FUNC LOCAL HIDDEN 11 void
std::__introsort_loop<__gnu_cxx::__normal_iterator<A**, std::vector<A*,
std::allocator<A*> > >, long>(__gnu_cxx::__normal_iterator<A**, std::vector<A*,
std::allocator<A*> > >, __gnu_cxx::__normal_iterator<A**, std::vector<A*,
std::allocator<A*> > >, long)
92: 0000000000004f10 120 FUNC LOCAL HIDDEN 11 void
std::__introsort_loop<__gnu_cxx::__normal_iterator<B**, std::vector<B*,
std::allocator<B*> > >, long>(__gnu_cxx::__normal_iterator<B**, std::vector<B*,
std::allocator<B*> > >, __gnu_cxx::__normal_iterator<B**, std::vector<B*,
std::allocator<B*> > >, long)
101: 0000000000005890 120 FUNC LOCAL HIDDEN 11 void
std::__introsort_loop<__gnu_cxx::__normal_iterator<C**, std::vector<C*,
std::allocator<C*> > >, long>(__gnu_cxx::__normal_iterator<C**, std::vector<C*,
std::allocator<C*> > >, __gnu_cxx::__normal_iterator<C**, std::vector<C*,
std::allocator<C*> > >, long)
p.s. made
void __attribute__ ((visibility ("default"))) go()
in ICFproblem.cpp
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