void *
dbgsysLoadLibrary(const char *name, char *err_buf, int err_buflen)
{
void * result;
#ifdef NATIVE
result = dlopen(name, RTLD_LAZY);
#else
sysMonitorEnter(greenThreadSelf(), &_dl_lock);
result = dlopen(name, RTLD_NOW);
sysMonitorExit(greenThreadSelf(), &_dl_lock);
/*
* This is a bit of bulletproofing to catch the commonly occurring
* problem of people loading a library which depends on libthread into
* the VM. thr_main() should always return -1 which means that libthread
* isn't loaded.
*/
if (thr_main() != -1) {
VM_CALL(panic)("libthread loaded into green threads");
}
#endif
if (result == NULL) {
(void)strncpy(err_buf, dlerror(), err_buflen-2);
err_buf[err_buflen-1] = '\0';
}
return result;
}
void dbgsysUnloadLibrary(void *handle)
{
#ifndef NATIVE
sysMonitorEnter(greenThreadSelf(), &_dl_lock);
#endif
(void)dlclose(handle);
#ifndef NATIVE
sysMonitorExit(greenThreadSelf(), &_dl_lock);
#endif
}
void
sysUnloadLibrary(void *handle)
{
#ifdef NEED_DL_LOCK
sysMonitorEnter(sysThreadSelf(), &_dl_lock);
dlclose(handle);
sysMonitorExit(sysThreadSelf(), &_dl_lock);
#else
dlclose(handle);
#endif
}
void * dbgsysFindLibraryEntry(void *handle, const char *name)
{
void * sym;
#ifndef NATIVE
sysMonitorEnter(greenThreadSelf(), &_dl_lock);
#endif
sym = dlsym(handle, name);
#ifndef NATIVE
sysMonitorExit(greenThreadSelf(), &_dl_lock);
#endif
return sym;
}
void *
sysFindLibraryEntry(void *handle, const char *name)
{
void *sym;
#ifdef NEED_DL_LOCK
sysMonitorEnter(sysThreadSelf(), &_dl_lock);
sym = dlsym(handle, name);
sysMonitorExit(sysThreadSelf(), &_dl_lock);
#else
sym = dlsym(handle, name);
#endif
return sym;
}
static void _LockBlkMgr(sys_thread_t *thrd)
{
sysMonitorEnter( thrd, blkvar.blkMgrMon );
}
