When building an RTEMS 5 BSP for LEON3 we get the warnings below regarding
missing _Timespec functions. These warnings result in linker errors when
building an application that uses a rtems_bsdnet_ifconfig struct supplied as
the network interface member of a rtems_bsdnet_config struct. We believe the
fix is to add the following include in greth2.c: #include
<rtems/score/timespec.h>. (Note there is also a trivial printf formatting
warning that should also be fixed.)
For reference, we used the following as the arguments to configure:
[rtems@localhost b-leon3]$ ../rtems/configure --target=sparc-rtems5
--enable-rtemsbsp=leon3 --enable-tests=samples
--prefix=${HOME}/projects/rtems-devel/bsp-install
Sincerely,
Keith Morgan &
Sam Larsen
[rtems@localhost b-leon3]$ make
Making all in sparc-rtems5/c
[...]
../../../../../../../../rtems/c/src/lib/libbsp/sparc/leon3/../../../../../../bsps/shared/net/greth2.c:
In function 'greth_initialize_hardware':
../../../../../../../../rtems/c/src/lib/libbsp/sparc/leon3/../../../../../../bsps/shared/net/greth2.c:329:5:
warning: implicit declaration of function '_Timespec_Set_to_zero'
[-Wimplicit-function-declaration]
_Timespec_Set_to_zero(&sc->auto_neg_time);
^~~~~~~~~~~~~~~~~~~~~
../../../../../../../../rtems/c/src/lib/libbsp/sparc/leon3/../../../../../../bsps/shared/net/greth2.c:329:5:
warning: nested extern declaration of '_Timespec_Set_to_zero'
[-Wnested-externs]
../../../../../../../../rtems/c/src/lib/libbsp/sparc/leon3/../../../../../../bsps/shared/net/greth2.c:338:21:
warning: implicit declaration of function '_Timespec_Subtract'; did you mean
'timespecsub'? [-Wimplicit-function-declaration]
_Timespec_Subtract(&tstart, &tnow, &sc->auto_neg_time);
^~~~~~~~~~~~~~~~~~
timespecsub
../../../../../../../../rtems/c/src/lib/libbsp/sparc/leon3/../../../../../../bsps/shared/net/greth2.c:338:21:
warning: nested extern declaration of '_Timespec_Subtract' [-Wnested-externs]
../../../../../../../../rtems/c/src/lib/libbsp/sparc/leon3/../../../../../../bsps/shared/net/greth2.c:339:25:
warning: implicit declaration of function '_Timespec_Greater_than'
[-Wimplicit-function-declaration]
if (_Timespec_Greater_than(&sc->auto_neg_time,
&greth_tan)) {
^~~~~~~~~~~~~~~~~~~~~~
../../../../../../../../rtems/c/src/lib/libbsp/sparc/leon3/../../../../../../bsps/shared/net/greth2.c:339:25:
warning: nested extern declaration of '_Timespec_Greater_than'
[-Wnested-externs]
[...]
--
Keith Shearl Morgan
ISR-3, Space Data Systems
Los Alamos National Laboratory
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