1 #ifndef NT_ARM_SYSTEM_CALL 2 # define NT_ARM_SYSTEM_CALL 0x404 3 #endif 4 /* 5 * NT_ARM_SYSTEM_CALL regset is supported by linux kernel 6 * starting with commit v3.19-rc1~59^2~16. 7 */ 8 9 static int arch_set_scno(struct tcb * tcp,kernel_ulong_t scno)10arch_set_scno(struct tcb *tcp, kernel_ulong_t scno) 11 { 12 unsigned int n = (uint16_t) scno; 13 const struct iovec io = { 14 .iov_base = &n, 15 .iov_len = sizeof(n) 16 }; 17 int rc = ptrace(PTRACE_SETREGSET, tcp->pid, NT_ARM_SYSTEM_CALL, &io); 18 if (rc && errno != ESRCH) 19 perror_msg("arch_set_scno: NT_ARM_SYSTEM_CALL pid:%d scno:%#x", 20 tcp->pid, n); 21 return rc; 22 } 23