------- Additional Comments From jakub at redhat dot com 2005-07-14 12:48
-------
That patch fixes the original testcase, but unfortunately does not fix
the following one.
cat > P.c <<EOF
#include <dlfcn.h>
#include <pthread.h>
void *
tf (void *arg)
{
void *h = dlopen ("./libP.so", RTLD_LAZY);
void (*fn) (void);
if (!h) return 0;
fn = dlsym (h, "foo");
fn ();
void *h2 = dlopen ("libstdc++.so.6", RTLD_LAZY);
if (!h2) return 0;
dlclose (h);
return 0;
}
int
main (void)
{
pthread_t th;
pthread_create (&th, NULL, tf, NULL);
pthread_join (th, NULL);
return 0;
}
EOF
cat > libP.C <<EOF
#include <string>
#include <ext/mt_allocator.h>
template class __gnu_cxx::__mt_alloc<short,
__gnu_cxx::__common_pool_policy<__gnu_cxx::__pool, true> >;
typedef std::char_traits<char> my_traits_type;
typedef __gnu_cxx::__mt_alloc<short,
__gnu_cxx::__common_pool_policy<__gnu_cxx::__pool, true> > my_allocator_type;
typedef std::basic_string<char, my_traits_type, my_allocator_type> my_string;
extern "C" void
foo (void)
{
my_string s;
s += "hello";
}
EOF
g++ -g -O2 -shared -fpic -o libP.so libP.C
gcc -g -O2 -o P P.c -ldl -lpthread
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22309
