Master Doesn't Build with --enable-multiprocessing

[Sebastian Huber]

On 23/05/16 00:35, Joel Sherrill wrote:
> Hi
>
> The master doesn't build for sparc/leon3 when multiprocessing is
> enabled.

It builds if you use --enable-multiprocessing without --enable-smp.

> Based upon the error, there is likely user guidance needed
> in the manual. For other methods removed, guidance on updating
> code has been added. I didn't look to check in this case.
>
> sparc-rtems4.12-gcc -B../../../../../../leon3/lib/ -specs bsp_specs 
> -qrtems -mcpu=leon3 -msoft-float -O2 -g -ffunction-sections 
> -fdata-sections -Wall -Wmissing-prototypes 
> -Wimplicit-function-declaration -Wstrict-prototypes -Wnested-externs 
>  -Wl,--gc-sections  -mcpu=leon3 -msoft-float   -o base_mp-node1.exe 
> init.o apptask.o
> ../../../../../../leon3/lib/librtemsbsp.a(libbsp_a-lock.o): In 
> function `Shm_Lock':
> /home/joel/rtems-4.11-work/b-leon3/sparc-rtems4.12/c/leon3/lib/libbsp/sparc/leon3/../../../../../../../../rtems/c/src/lib/libbsp/sparc/leon3/shmsupp/lock.c:63: 
> undefined reference to `rtems_interrupt_disable'
> ../../../../../../leon3/lib/librtemsbsp.a(libbsp_a-lock.o): In 
> function `Shm_Unlock':
> /home/joel/rtems-4.11-work/b-leon3/sparc-rtems4.12/c/leon3/lib/libbsp/sparc/leon3/../../../../../../../../rtems/c/src/lib/libbsp/sparc/leon3/shmsupp/lock.c:88: 
> undefined reference to `rtems_interrupt_enable'

See also:

https://docs.rtems.org/doc-current/share/rtems/html/c_user/Symmetric-Multiprocessing-Services-Disable-Interrupts-and-Interrupt-Locks.html#Symmetric-Multiprocessing-Services-Disable-Interrupts-and-Interrupt-Locks

Multiprocessing support is broken on SMP:

https://devel.rtems.org/ticket/2703

-- 
Sebastian Huber, embedded brains GmbH

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