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Feature #14141

Updated by Toomas Soome about 2 months ago

With slightly older screen, I did notice the issue in output of w and who: 
 <pre> 
 tsoome@openindiana:/code/illumos-gate$ w 
 00:04:43        2 users,    load average: 0,93, 1,06, 1,05 
 User       tty        login@           idle      JCPU      PCPU what 
 tsoome     pts/2      23:23:57            2         1         0 /usr/bin/bash 
 tsoome     pts/1      23:52:22            0         0         0 w 
 tsoome     pts/3      23:22:05            0         0         0 - 
 tsoome     pts/3      23:22:05            0         0         0 - 
 tsoome@openindiana:/code/illumos-gate$ who 
 tsoome       pts/2          okt    6 23:23      (10.7.33.28) 
 tsoome       pts/1          okt    6 23:52      (10.7.33.28) 
 tsoome       pts/3          okt    6 23:22      (:pts/2:S.0) 
 tsoome       pts/3          okt    6 23:22      (:pts/2:S.0) 
 tsoome@openindiana:/code/illumos-gate$  
 </pre> 

 This system was built with gcc 10 on sparc, and the problem is not about w and who commands, but about 32-bit ABI - gcc 10 does not implement complementing 32-bit signed data to 64-bit (as does gcc 4.4.4). From one hand this is bug, but in this particular case, we can work around by building utmpd as 64-bit binary. It is a bit odd reason, but as good as any other IMO. 

 Testing done: build/install/boot, the w/who are producing expected output on x86 and on sparc.

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