evdev broken

Shawn Webb shawn.webb at hardenedbsd.org
Fri Dec 29 19:15:45 UTC 2017


Hey All,

It looks like evdev support in the kernel is broken.
sys/dev/kbdmux/kbdmux.c contains various unresolved symbols to
different evdev-related symbols.

I have the following options in my kernel config:

options         EVDEV_SUPPORT
options         EVDEV_DEBUG
options         UINPUT_DEBUG

Here's the build failure log:

linking kernel.full                                                                                                                                                                        
ld: error: undefined symbol: evdev_rcpt_mask                                                                                                                                               
>>> referenced by kbdmux.c:1190 (/usr/src/sys/dev/kbdmux/kbdmux.c:1190)                                                                                                                    
>>>               kbdmux.o:(kbdmux_init)                                                                                                                                                   
                                                                                                                                                                                           
ld: error: undefined symbol: evdev_push_leds                                                                                                                                               
>>> referenced by kbdmux.c:1191 (/usr/src/sys/dev/kbdmux/kbdmux.c:1191)                                                                                                                    
>>>               kbdmux.o:(kbdmux_init)                                                                                                                                                   
                                                                                                                                                                                           
ld: error: undefined symbol: evdev_alloc                                                                                                                                                   
>>> referenced by kbdmux.c:492 (/usr/src/sys/dev/kbdmux/kbdmux.c:492)                                                                                                                      
>>>               kbdmux.o:(kbdmux_init)

ld: error: undefined symbol: evdev_set_name 
>>> referenced by kbdmux.c:493 (/usr/src/sys/dev/kbdmux/kbdmux.c:493)
>>>               kbdmux.o:(kbdmux_init)     

ld: error: undefined symbol: evdev_set_phys    
>>> referenced by kbdmux.c:495 (/usr/src/sys/dev/kbdmux/kbdmux.c:495)
>>>               kbdmux.o:(kbdmux_init)     

ld: error: undefined symbol: evdev_set_id                                              
>>> referenced by kbdmux.c:496 (/usr/src/sys/dev/kbdmux/kbdmux.c:496)
>>>               kbdmux.o:(kbdmux_init)

ld: error: undefined symbol: evdev_set_methods               
>>> referenced by kbdmux.c:497 (/usr/src/sys/dev/kbdmux/kbdmux.c:497)
>>>               kbdmux.o:(kbdmux_init)
                                                             
ld: error: undefined symbol: evdev_support_event
>>> referenced by kbdmux.c:498 (/usr/src/sys/dev/kbdmux/kbdmux.c:498)
>>>               kbdmux.o:(kbdmux_init)
                            
ld: error: undefined symbol: evdev_support_event
>>> referenced by kbdmux.c:499 (/usr/src/sys/dev/kbdmux/kbdmux.c:499)
>>>               kbdmux.o:(kbdmux_init)
                   
ld: error: undefined symbol: evdev_support_event
>>> referenced by kbdmux.c:500 (/usr/src/sys/dev/kbdmux/kbdmux.c:500)
>>>               kbdmux.o:(kbdmux_init)
       
ld: error: undefined symbol: evdev_support_event
>>> referenced by kbdmux.c:501 (/usr/src/sys/dev/kbdmux/kbdmux.c:501)
>>>               kbdmux.o:(kbdmux_init)                                                                                                                                                  
                                                                                                                                                
ld: error: undefined symbol: evdev_support_all_known_keys
>>> referenced by kbdmux.c:502 (/usr/src/sys/dev/kbdmux/kbdmux.c:502)
>>>               kbdmux.o:(kbdmux_init)                             
                                                              
ld: error: undefined symbol: evdev_support_led
>>> referenced by kbdmux.c:503 (/usr/src/sys/dev/kbdmux/kbdmux.c:503)
>>>               kbdmux.o:(kbdmux_init)
                                                              
ld: error: undefined symbol: evdev_support_led
>>> referenced by kbdmux.c:504 (/usr/src/sys/dev/kbdmux/kbdmux.c:504)
>>>               kbdmux.o:(kbdmux_init)                                                                                                                                                   
                                                                                                                                                                                           
ld: error: undefined symbol: evdev_support_led
>>> referenced by kbdmux.c:505 (/usr/src/sys/dev/kbdmux/kbdmux.c:505)
>>>               kbdmux.o:(kbdmux_init)              

ld: error: undefined symbol: evdev_register                   
>>> referenced by kbdmux.c:507 (/usr/src/sys/dev/kbdmux/kbdmux.c:507)
>>>               kbdmux.o:(kbdmux_init)                      
                                                                                                                                                                                           
ld: error: undefined symbol: evdev_free                                                                                                                                                    
>>> referenced by kbdmux.c:508 (/usr/src/sys/dev/kbdmux/kbdmux.c:508)                                                                                                                      
>>>               kbdmux.o:(kbdmux_init)                 
                                             
ld: error: undefined symbol: evdev_free                                                          
>>> referenced by kbdmux.c:583 (/usr/src/sys/dev/kbdmux/kbdmux.c:583)
>>>               kbdmux.o:(kbdmux_term)                      
                                  
ld: error: undefined symbol: evdev_rcpt_mask                  
>>> referenced by kbdmux.c:750 (/usr/src/sys/dev/kbdmux/kbdmux.c:750)                                                                                                                      
>>>               kbdmux.o:(kbdmux_read_char)                                                                                                                                              
                                                                                                                                                                                           
ld: error: undefined symbol: evdev_scancode2key                                                                                                                                            
>>> referenced by kbdmux.c:751 (/usr/src/sys/dev/kbdmux/kbdmux.c:751)                                                                                                                      
>>>               kbdmux.o:(kbdmux_read_char)

Thanks,

-- 
Shawn Webb
Cofounder and Security Engineer
HardenedBSD

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