M68k assembler under cygwin

Bruce Adams bruadams@tycoint.com
Wed Dec 18 02:45:00 GMT 2002



Hi,
   I am trying to assemble some existing m68k assembler code under gcc.  I
have for the time being suspended my attempts to build a cross that works
from cygwin and opted to use the prebuilt rtems compiler until I can get
our existing codebase and especially the assembly to build & link.  (No
point
trying to use gcc 3.2 and the STL if I can't do that).  
Ideally I want a cygwin to m68k-elf or m68k-nucleus if such a thing exists.
  Anyway the assembly code itself is basically sound.  It can be made to
work with Crosscode ASM68000, Green Hills & Metrowerks Code Warrior, though
I have had issues trying to get it working with the stricter Microtec
compiler.
  I have several problems with gcc.  Firstly it reports errors relative 
to positions in a temporary file rather than the original file.  
Worse it does not seem to recognise much of the assembler I feel it should.
For example EQU directives like:

sf_BOOTROM_COMPATIBILTY equ   2          

Example output follows:

C:\BruceA\builds\compiler\mak>create /cg wrench
WRENCH Component (Firmware)....
..\src\bhdrdata.s (m68k-rtems-gcc.exe -xassembler -c -save-temps -v) ->
..\gtaro
bj\wrench\bhdrdata.obj
m68k-rtems-gcc -v -x assembler-with-cpp -mri -Wp,-P -DctD_NUCLEUS -I..\src
..\sr
c\bhdrdata.s -o ..\gtarobj\wrench\bhdrdata.obj
Reading specs from /opt/rtems/lib/gcc-lib/m68k-rtems/2.95.3/specs
gcc version 2.95.3 20010315 (release)
 /opt/rtems/lib/gcc-lib/m68k-rtems/2.95.3/cpp0.exe -lang-asm -v -I..\src -$
-Dmc
68000 -Drtems -D__rtems__ -D__ELF__ -D__mc68000__ -D__rtems__ -D__rtems__
-D__EL
F__ -D__mc68000 -D__rtems -Asystem(rtems) -Acpu(mc68000) -Acpu(m68k)
-Amachine(m
68k) -D__ASSEMBLER__ -D__HAVE_68881__ -Dmc68020 -D__mc68020 -D__mc68020__
-DctD_
NUCLEUS -P ..\src\bhdrdata.s
/cygdrive/c/DOCUME~1/BADAMS~1.TEP/LOCALS~1/Temp/ccO
gBeUU.s
GNU CPP version 2.95.3 20010315 (release) (68k, Motorola syntax)
#include "..." search starts here:
#include <...> search starts here:
 ../src
 /opt/rtems/lib/gcc-lib/m68k-rtems/2.95.3/include
 /opt/rtems/lib/gcc-lib/m68k-rtems/2.95.3/../../../../m68k-rtems/include
End of search list.
The following default directories have been omitted from the search path:
 /opt/rtems/lib/gcc-lib/m68k-rtems/2.95.3/../../../../include/g++-3
 /opt/rtems/lib/gcc-lib/m68k-rtems/2.95.3/../../../../m68k-rtems/sys-include
End of omitted list.
 /opt/rtems/m68k-rtems/bin/as.exe -mc68020 -o
/cygdrive/c/DOCUME~1/BADAMS~1.TEP/
LOCALS~1/Temp/ccCsSTxJ.o
/cygdrive/c/DOCUME~1/BADAMS~1.TEP/LOCALS~1/Temp/ccOgBeU
U.s
/cygdrive/c/DOCUME~1/BADAMS~1.TEP/LOCALS~1/Temp/ccOgBeUU.s: Assembler
messages:
/cygdrive/c/DOCUME~1/BADAMS~1.TEP/LOCALS~1/Temp/ccOgBeUU.s:194: Error:
Unknown o
perator -- statement `sf_bootrom_compatibilty equ 2' ignored
/cygdrive/c/DOCUME~1/BADAMS~1.TEP/LOCALS~1/Temp/ccOgBeUU.s:195: Error:
Unknown o
perator -- statement `checked by bootstrap for compatiblity' ignored
/cygdrive/c/DOCUME~1/BADAMS~1.TEP/LOCALS~1/Temp/ccOgBeUU.s:196: Error:
Unknown o
perator -- statement `with MINERVA firmware.' ignored
/cygdrive/c/DOCUME~1/BADAMS~1.TEP/LOCALS~1/Temp/ccOgBeUU.s:200: Error:
Unknown o
perator -- statement `section boot_header' ignored
/cygdrive/c/DOCUME~1/BADAMS~1.TEP/LOCALS~1/Temp/ccOgBeUU.s:206: Error:
Unknown o
perator -- statement `start of Bootstrap header block' ignored
/cygdrive/c/DOCUME~1/BADAMS~1.TEP/LOCALS~1/Temp/ccOgBeUU.s:211: Error:
Unknown o
perator -- statement `section panel_header' ignored
/cygdrive/c/DOCUME~1/BADAMS~1.TEP/LOCALS~1/Temp/ccOgBeUU.s:213: Error:
Unknown o
perator -- statement `start of MINERVA header block' ignored
/cygdrive/c/DOCUME~1/BADAMS~1.TEP/LOCALS~1/Temp/ccOgBeUU.s:216: Error:
Unknown o
perator -- statement `xref _MINERVA_START' ignored
/cygdrive/c/DOCUME~1/BADAMS~1.TEP/LOCALS~1/Temp/ccOgBeUU.s:216: Error:
Unknown o
perator -- statement `entry point to start up the MINERVA' ignored

OPUS MAKE: Shell line exit status 1. Stop.

OPUS MAKE: Shell line exit status 3. Stop.

Any idea what could be going wrong?
			Regards,
				  Bruce A.


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