Re: [Paparazzi-devel] strange error in one of my modules

[Gautier Hattenberger]

Hello,

It seems that the init and periodic functions are defined in 
parachute_and_wind.h, but the implementation is missing in 
parachute_and_wind.c (or the function names are different, or the file 
itself is not compiled -> do you see it in the list of files compiled ?).

Gautier

Le 12/10/2020 à 13:28, Chris a écrit :
> Hi.
>
> If anyone knows what causes a module to fail with a message like the 
> one below let me know.
>
> Any help welcomed because my head hurts....
>
> ERROR MESSAGES:
>
> D 
> /home/hendrix/paparazzi/var/aircrafts/Easystar_matek_f405_wing_simple/ap/ap.elf
> /home/hendrix/paparazzi/var/aircrafts/Easystar_matek_f405_wing_simple/ap/firmwares/fixedwing/main_ap.o: 
> In function `modules_default_init':
> /home/hendrix/paparazzi/var/aircrafts/Easystar_matek_f405_wing_simple/ap/generated/modules.h:94: 
> undefined reference to `parachute_init'
> /home/hendrix/paparazzi/var/aircrafts/Easystar_matek_f405_wing_simple/ap/firmwares/fixedwing/main_ap.o: 
> In function `modules_default_periodic_task':
> /home/hendrix/paparazzi/var/aircrafts/Easystar_matek_f405_wing_simple/ap/generated/modules.h:152: 
> undefined reference to `parachute_periodic'
> collect2: error: ld returned 1 exit status
> /home/hendrix/paparazzi/conf/Makefile.stm32:239: recipe for target 
> '/home/hendrix/paparazzi/var/aircrafts/Easystar_matek_f405_wing_simple/ap/ap.elf' 
> failed
> make[1]: *** 
> [/home/hendrix/paparazzi/var/aircrafts/Easystar_matek_f405_wing_simple/ap/ap.elf] 
> Error 1
> make[1]: Leaving directory '/home/hendrix/paparazzi/sw/airborne'
> Makefile.ac:211: recipe for target 'ap.compile' failed
> make: *** [ap.compile] Error 2
> make: Leaving directory '/home/hendrix/paparazzi'
>
> FAILED 'make -C /home/hendrix/paparazzi -f Makefile.ac 
> AIRCRAFT=Easystar_matek_f405_wing_simple ap.compile' with code 2
>
> All the functions are defined and i can't find anything wrong with the 
> xml file
>
> MODULE XML FILE:
>
> <!DOCTYPE module SYSTEM "module.dtd">
>
> <module name="my_parachute" dir="my_parachute">
>   <doc>
>     <description>Parachute</description>
>     <configure name="PARACHUTE_DESCENT_RATE" value="3.0" 
> description="calculated descent rate in meters/second"/>
>     <configure name="PARACHUTE_WIND_CORRECTION" value="1.0" 
> description="to estimate the landing spot better"/>
>     <configure name="PARACHUTE_LINE_LENGTH" value="3.0" 
> description="the parachute to plane distance in meters."/>
>   </doc>
> <settings>
>   <dl_settings>
>     <dl_settings NAME="Parachute">
>       <dl_setting MAX="1" MIN="0" STEP="1" VAR="deploy_parachute_var" 
> shortname="deploy parachute">
> <!--       <strip_button name="parachute" icon="on.png" value="1" 
> group="parachute" />  -->
>       </dl_setting>
>     </dl_settings>
>   </dl_settings>
> </settings>
>   <header>
>     <file name="parachute_and_wind.h"/>
>   </header>
>   <init fun="parachute_init()"/>
>   <periodic fun="parachute_periodic()" freq="4"/>
>   <makefile>
>     <define name="USE_PARACHUTE" value="1"/>
>     <define name="WIND_INFO"/>
>     <define name="WIND_INFO_RET"/>
>     <define name="PARACHUTE_DESCENT_RATE"        value="3.0" />
>     <define name="PARACHUTE_WIND_CORRECTION"    value="0.5" />
>     <define name="PARACHUTE_LINE_LENGTH"        value="3.0" />
>     <file name="parachute_and_wind.c"/>
>   </makefile>
> </module>
>
>
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