ColdFire CVS Build Error with 4.0.0
Joel Sherrill <joel@OARcorp.com>
joel.sherrill at OARcorp.com
Wed Jun 1 21:36:02 UTC 2005
Ralf Corsepius wrote:
> On Wed, 2005-06-01 at 13:42 -0600, Brett Swimley wrote:
>
>>Hi All -
>>
>>I'm working on moving to RTEMS 4.7.x and have the current CVS sources.
>>I'm building the csb360 BSP to test the tool chain prior to moving my
>>BSP over to 4.7. I've just built gcc-4.0.0 but had the same problems
>>with gcc-3.4.2.
>>
>>When compiling, the macro:
>>
>>m68k_set_vbr
>>
>>fails with a gcc error:
>>
>>'_VBR' has an incomplete type'
>>
>>The pertinent code from /cpukit/score/cpu/m68k/rtems/score/m68k.h is
>>shown below. The asterisked line appears to be where the problem occurs.
>>
>>#elif ( M68K_COLDFIRE_ARCH == 1 )
>>extern uint32_t _VBR[];
>>#define m68k_get_vbr( _vbr ) _vbr = _VBR
>>
>>#define m68k_set_vbr( vbr ) \
>> do { \
>> asm volatile ( "movec %0,%%vbr " : : "r" (vbr)); \
>>*** _VBR = (void *)vbr; \
>> } while(0)
>>
>>CVS indicates that _VBR was changed fairly recently from
>>void* _VBR;
>>to
>>uint32_t _VBR[];
>>
>>I'm guessing that a typecast is required, but I'm not sure what the cast
>>should be.
>>
>>Any suggestions?
>
> Known bug, Joel had promised to fix.
I've been trying to resolve this but can't seem to find the magic
combination which works. The uC5282 does compile.
I would like a hint if some ColdFire person could help.
--joel
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