if (iocb_is_valid(cb)) {
tprints(", iovec=");
tprint_iov(tcp, cb->aio_nbytes, cb->aio_buf,
- cb->aio_lio_opcode == 8);
+ cb->aio_lio_opcode == 8
+ ? IOV_DECODE_STR
+ : IOV_DECODE_ADDR);
} else {
tprintf(", buf=%#" PRIx64 ", nbytes=%" PRIu64,
(uint64_t) cb->aio_buf,
}
}
-SYS_FUNC(io_submit)
+static bool
+print_iocbp(struct tcb *tcp, void *elem_buf, size_t elem_size, void *data)
{
- long nr = tcp->u_arg[1];
- /* if nr <= 0, we end up printing just "[]" */
- tprintf("%lu, %ld, [", tcp->u_arg[0], nr);
- {
- long i;
- long iocbs = tcp->u_arg[2];
-
- for (i = 0; i < nr; ++i, iocbs += current_wordsize) {
- unsigned long iocbp;
- struct iocb cb;
-
- if (i)
- tprints(", ");
-
- if (umove_ulong_or_printaddr(tcp, iocbs, &iocbp)) {
- /*
- * No point in trying to read the whole array
- * because nr can be ridiculously large.
- */
- break;
- }
+ unsigned long addr;
+ struct iocb cb;
- tprints("{");
- if (!umove_or_printaddr(tcp, iocbp, &cb))
- print_iocb(tcp, &cb);
- tprints("}");
- }
+ if (elem_size < sizeof(long)) {
+ addr = * (unsigned int *) elem_buf;
+ } else {
+ addr = * (unsigned long *) elem_buf;
}
- tprints("]");
+
+ tprints("{");
+ if (!umove_or_printaddr(tcp, addr, &cb))
+ print_iocb(tcp, &cb);
+ tprints("}");
+
+ return true;
+}
+
+SYS_FUNC(io_submit)
+{
+ const long nr = widen_to_long(tcp->u_arg[1]);
+ const unsigned long addr = tcp->u_arg[2];
+ unsigned long iocbp;
+
+ tprintf("%lu, %ld, ", tcp->u_arg[0], nr);
+
+ if (nr < 0)
+ printaddr(addr);
+ else
+ print_array(tcp, addr, nr, &iocbp, current_wordsize,
+ umoven_or_printaddr, print_iocbp, 0);
+
return RVAL_DECODED;
}
-static int
-print_io_event(struct tcb *tcp, const long addr)
+static bool
+print_io_event(struct tcb *tcp, void *elem_buf, size_t elem_size, void *data)
{
- struct io_event event;
+ struct io_event *event = elem_buf;
- if (umove_or_printaddr(tcp, addr, &event))
- return -1;
tprintf("{data=%#" PRIx64 ", obj=%#" PRIx64
", res=%" PRId64 ", res2=%" PRId64 "}",
- (uint64_t) event.data, (uint64_t) event.obj,
- (int64_t) event.res, (int64_t) event.res2);
- return 0;
+ (uint64_t) event->data, (uint64_t) event->obj,
+ (int64_t) event->res, (int64_t) event->res2);
+
+ return true;
}
SYS_FUNC(io_cancel)
}
tprints(", ");
} else {
- print_io_event(tcp, tcp->u_arg[2]);
+ struct io_event event;
+
+ if (!umove_or_printaddr(tcp, tcp->u_arg[2], &event))
+ print_io_event(tcp, &event, sizeof(event), 0);
}
return 0;
}
{
if (entering(tcp)) {
tprintf("%lu, %ld, %ld, ",
- tcp->u_arg[0], tcp->u_arg[1], tcp->u_arg[2]);
+ tcp->u_arg[0],
+ widen_to_long(tcp->u_arg[1]),
+ widen_to_long(tcp->u_arg[2]));
} else {
- if (tcp->u_rval == 0) {
- tprints("[]");
- } else {
- struct io_event *events = (void *)tcp->u_arg[3];
- long i, nr = tcp->u_rval;
-
- for (i = 0; i < nr; i++, events++) {
- if (i == 0)
- tprints("[");
- else
- tprints(", ");
-
- if (print_io_event(tcp, (long)events))
- break;
- }
- tprints("], ");
- }
-
+ struct io_event buf;
+ print_array(tcp, tcp->u_arg[3], tcp->u_rval, &buf, sizeof(buf),
+ umoven_or_printaddr, print_io_event, 0);
+ tprints(", ");
+ /*
+ * Since the timeout parameter is read by the kernel
+ * on entering syscall, it has to be decoded the same way
+ * whether the syscall has failed or not.
+ */
+ temporarily_clear_syserror(tcp);
print_timespec(tcp, tcp->u_arg[4]);
+ restore_cleared_syserror(tcp);
}
return 0;
}