With the following foo.cpp sample:
#include <algorithm>
__attribute__((visibility("default"))) void foo() {
int array[] = { 23, 5, -10, 0, 0, 321, 1, 2, 99, 30 };
int elements = sizeof(array) / sizeof(array[0]);
std::sort(array, array + elements);
}
Building with the following command line:
g++-4.3 -shared -fPIC -fvisibility=hidden -fvisibility-inlines-hidden -o foo.so
foo.cpp
Leads to internals being exposed, which is unexpected:
objdump -T -C test2.so | grep std
000000000000136d w DF .text 000000000000003a Base void
std::__unguarded_insertion_sort<int*>(int*, int*)
0000000000001b18 w DF .text 0000000000000057 Base void
std::sort<int*>(int*, int*)
000000000000147f w DF .text 000000000000000e Base
std::__niter_base<int*, false>::__b(int*)
000000000000190b w DF .text 0000000000000021 Base std::__lg(long)
0000000000001324 w DF .text 0000000000000049 Base void
std::__unguarded_linear_insert<int*, int>(int*, int)
000000000000141f w DF .text 0000000000000060 Base int*
std::__unguarded_partition<int*, int>(int*, int*, int)
0000000000001674 w DF .text 0000000000000088 Base void
std::make_heap<int*>(int*, int*)
0000000000001400 w DF .text 000000000000001f Base void
std::iter_swap<int*, int*>(int*, int*)
00000000000013b5 w DF .text 000000000000002c Base void
std::swap<int>(int&, int&)
00000000000016fc w DF .text 0000000000000054 Base void
std::__pop_heap<int*>(int*, int*, int*)
00000000000019bc w DF .text 000000000000004f Base int*
std::__copy_move_backward_a2<false, int*, int*>(int*, int*, int*)
0000000000001a4b w DF .text 0000000000000079 Base void
std::__insertion_sort<int*>(int*, int*)
0000000000001a0b w DF .text 0000000000000040 Base int*
std::copy_backward<int*, int*>(int*, int*, int*)
0000000000001750 w DF .text 000000000000005d Base void
std::__heap_select<int*>(int*, int*, int*)
0000000000001284 w DF .text 00000000000000a0 Base int const&
std::__median<int>(int const&, int const&, int const&)
00000000000017ad w DF .text 000000000000002b Base void
std::pop_heap<int*>(int*, int*)
000000000000152e w DF .text 0000000000000146 Base void
std::__adjust_heap<int*, long, int>(int*, long, long, int)
00000000000013a7 w DF .text 000000000000000e Base
std::__miter_base<int*, false>::__b(int*)
000000000000180f w DF .text 0000000000000034 Base void
std::partial_sort<int*>(int*, int*, int*)
00000000000017d8 w DF .text 0000000000000037 Base void
std::sort_heap<int*>(int*, int*)
0000000000001991 w DF .text 000000000000002b Base int*
std::__copy_move_backward_a<false, int*, int*>(int*, int*, int*)
0000000000001ac4 w DF .text 0000000000000054 Base void
std::__final_insertion_sort<int*>(int*, int*)
0000000000001843 w DF .text 00000000000000c8 Base void
std::__introsort_loop<int*, long>(int*, int*, long)
000000000000192c w DF .text 0000000000000065 Base int*
std::__copy_move_backward<false, true,
std::random_access_iterator_tag>::__copy_move_b<int>(int const*, int const*,
int*)
00000000000013e1 w DF .text 000000000000001f Base void
std::__iter_swap<true>::iter_swap<int*, int*>(int*, int*)
000000000000148d w DF .text 00000000000000a1 Base void
std::__push_heap<int*, long, int>(int*, long, long, int)
FYI: g++-4.3 -v
Using built-in specs.
Target: x86_64-linux-gnu
Configured with: ../src/configure linux gnu
Thread model: posix
gcc version 4.3.1 20080401 (prerelease) (Debian 4.3.0-3)
(it also happens with g++-4.2 from debian (4.2.3))
--
Summary: stl templates exported as weak symbols though visibility
hidden is used
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: mh+gcc at glandium dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36022
