/*
* WARNING: By using this method to initialize libpthread wrappers (direct
* dlopen()/dlsym()) we are are overriding any user wrappers for these
* functions. If this is a problem in the future we need to think of a new way
* to do this.
*/
LIB_PRIVATE
void initialize_libpthread_wrappers()
{
if (!_libpthread_wrappers_initialized) {
FOREACH_LIBPTHREAD_WRAPPERS(GET_LIBPTHREAD_FUNC_ADDR);
_libpthread_wrappers_initialized = 1;
}
}
/*
* WARNING: By using this method to initialize libpthread wrappers (direct
* dlopen()/dlsym()) we are are overriding any user wrappers for these
* functions. If this is a problem in the future we need to think of a new way
* to do this.
* EDIT: On some ARM machines, the symbol version is 2.4. Try that first and
* fallback to 2.3.4 on failure.
*/
static void
initialize_libpthread_wrappers()
{
const char *ver_2_4 = "GLIBC_2.4";
const char *ver_2_3_2 = "GLIBC_2.3.2";
const char *pthread_sym_ver = NULL;
void *addr = dmtcp_dlvsym(RTLD_NEXT, "pthread_cond_signal", (char*)ver_2_4);
if (addr != NULL) {
pthread_sym_ver = ver_2_4;
} else {
pthread_sym_ver = ver_2_3_2;
}
FOREACH_LIBPTHREAD_WRAPPERS(GET_LIBPTHREAD_FUNC_ADDR);
}
/*
* WARNING: By using this method to initialize libpthread wrappers (direct
* dlopen()/dlsym()) we are are overriding any user wrappers for these
* functions. If this is a problem in the future we need to think of a new way
* to do this.
* EDIT: On some ARM machines, the symbol version is 2.4. Try that first and
* fallback to 2.3.4 on failure.
*/
LIB_PRIVATE
void initialize_libpthread_wrappers()
{
if (!_libpthread_wrappers_initialized) {
const char *ver_2_4 = "GLIBC_2.4";
const char *ver_2_3_2 = "GLIBC_2.3.2";
const char *pthread_sym_ver = NULL;
void *addr = dlvsym(RTLD_NEXT, "pthread_cond_signal", ver_2_4);
if (addr != NULL) {
pthread_sym_ver = ver_2_4;
} else {
pthread_sym_ver = ver_2_3_2;
}
FOREACH_LIBPTHREAD_WRAPPERS(GET_LIBPTHREAD_FUNC_ADDR);
_libpthread_wrappers_initialized = 1;
}
}
/*
* WARNING: By using this method to initialize libpthread wrappers (direct
* dlopen()/dlsym()) we are are overriding any user wrappers for these
* functions. If this is a problem in the future we need to think of a new way
* to do this.
*/
LIB_PRIVATE
void initialize_libpthread_wrappers()
{
if (!_libpthread_wrappers_initialized) {
dmtcp_setThreadPerformingDlopenDlsym();
void *pthread_handle = _real_dlopen(LIBPTHREAD_FILENAME, RTLD_NOW);
dmtcp_unsetThreadPerformingDlopenDlsym();
if (pthread_handle == NULL) {
fprintf(stderr, "*** DMTCP: Error: could not open libpthread shared "
"library. Aborting.\n");
abort();
}
FOREACH_LIBPTHREAD_WRAPPERS(GET_LIBPTHREAD_FUNC_ADDR);
_real_dlclose(pthread_handle);
_libpthread_wrappers_initialized = 1;
}
}
