1 static void get_error(struct tcb * tcp,const bool check_errno)2get_error(struct tcb *tcp, const bool check_errno) 3 { 4 /* 5 * In X32, return value is 64-bit (llseek uses one). 6 * Using merely "long rax" would not work. 7 */ 8 long long rax; 9 10 if (x86_io.iov_len == sizeof(i386_regs)) { 11 /* Sign extend from 32 bits */ 12 rax = (int32_t) i386_regs.eax; 13 } else { 14 rax = x86_64_regs.rax; 15 } 16 17 if (check_errno && is_negated_errno(rax)) { 18 tcp->u_rval = -1; 19 tcp->u_error = -rax; 20 } else { 21 tcp->u_rval = rax; 22 } 23 } 24