prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x3b, 0x1, 0x0, 0x0, &(0x7f0000000040))
rt_sigaction(0x37, &(0x7f0000000100)={&(0x7f00000007c0)="c401fa16cbc40219cf8802000000c42149dabc283fcb00002dff370000c4c16171f61df20f38f1b6feefffffc461f950dbf24e0f2a7e2bc4c10653500666f30f012d0010c0fe", 0x0, 0x0}, 0x0, 0x8, &(0x7f0000000200))