Values for SigBlk and SigIgn are zero in /proc/$$/status

[Ken SATO]

Hello,

When I run the following command, the values for SigBlk and SigIgn are zero.
How can I get the correct value?

$ cat /proc/$$/status
Name:   bash
State:  S (sleeping)
Tgid:   1553
Pid:    1553
PPid:   1552
Uid:    197609 197609 197609 197609
Gid:    197121 197121 197121 197121
VmSize:     6144 kB
VmLck:         0 kB
VmRSS:      8960 kB
VmData:     2432 kB
VmStk:         0 kB
VmExe:        64 kB
VmLib:      4416 kB
SigPnd: 0000000000000000
SigBlk: 0000000000000000
SigIgn: 0000000000000000
$