import gdb
gr = gdb.execute
inf = gdb.selected_inferior()
pid = inf.pid
base = None
for line in open("/proc/%d/maps" % pid):
    parts = line.split()
    try:
        lo, hi = [int(x,16) for x in parts[0].split('-')]
    except Exception:
        continue
    if base is None and "libnvidia-eglcore" in line and int(parts[2],16) == 0:
        base = lo
print("BASE 0x%x" % (base or 0))
class B(gdb.Breakpoint):
    def __init__(self):
        super().__init__("*0x%x" % (base + 0xA12DDF), internal=False)
        self.silent = True; self.done = False
    def stop(self):
        if self.done:
            return True
        self.done = True
        try:
            rdi = int(gdb.parse_and_eval("$rdi"))
            rsi = int(gdb.parse_and_eval("$rsi"))
            rdx = int(gdb.parse_and_eval("$rdx"))
            print("POLL nfds=%d timeout=%d arr=0x%x" % (rsi, rdx, rdi))
            fd = int(gdb.parse_and_eval("*(int*)0x%x" % rdi))
            ev = int(gdb.parse_and_eval("*(unsigned short*)0x%x" % (rdi + 4)))
            rv = int(gdb.parse_and_eval("*(unsigned short*)0x%x" % (rdi + 6)))
            print("FDPOLL fd=%d events=0x%x revents=0x%x" % (fd, ev, rv))
        except Exception as e:
            print("fail %s" % e)
        return True
try:
    B(); print("BP-SET")
    gr("continue")
except Exception as e:
    print("bpfail %s" % e)
print("T96-DONE")