All parameters must be swapped before the call of do_msgrcv().
Allow faked (debian fakeroot daemon) to work properly.
WITHOUT this patch:
$ faked-sysv --foreground --debug
using
1723744788 as msg key
msg_key=
1723744788
1723744788:431
FAKEROOT: msg=131072, key=
1723744788
FAKEROOT: r=-1, received message type=-
150996052, message=-
160219330
FAKEROOT, get_msg: Bad address
r=14, EINTR=4
fakeroot: clearing up message queues and semaphores, signal=-1
fakeroot: database save FAILED
WITH this patch:
$ faked-sysv --foreground --debug
using
1569385744 as msg key
msg_key=
1569385744
1569385744:424
FAKEROOT: msg=0, key=
1569385744
^C
fakeroot: clearing up message queues and semaphores, signal=2
fakeroot: database save FAILED
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
return -TARGET_EFAULT;
host_mb = g_malloc(msgsz+sizeof(long));
- ret = get_errno(msgrcv(msqid, host_mb, msgsz, tswapal(msgtyp), msgflg));
+ ret = get_errno(msgrcv(msqid, host_mb, msgsz, msgtyp, msgflg));
if (ret > 0) {
abi_ulong target_mtext_addr = msgp + sizeof(abi_ulong);
break;
}
- ret = do_msgrcv(first, tmp->msgp, second, tmp->msgtyp, third);
+ ret = do_msgrcv(first, tswapal(tmp->msgp), second, tswapal(tmp->msgtyp), third);
unlock_user_struct(tmp, ptr, 0);
break;