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From: hainque@news.enst.fr (Olivier Hainque)
Subject: Invalid asm statement with GNAT - Help !
Date: 1996/08/06
Message-ID: <4u7mdh$gvm@enst.enst.fr>#1/1
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content-type: text/plain; charset=iso-8859-1
organization: ENST, France
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newsgroups: comp.lang.ada
Date: 1996-08-06T00:00:00+00:00
List-Id: <comp.lang.ada>



 Hello all,

 I am trying to port the GNAT runtime for an embedded OS running on
 a 68302.

 I configured gcc as a cross compiler for C and Ada and have troubles
 while building a dummy runtime for my target :

 $ make CC=gcc CFLAGS="-m68302 -msoft-float" gnatlib

... Everything runs fine for the first files, but ...

 ../../xgcc -B../../ -c -m68302 -msoft-float  -O2 -gnatpg -I.
 -I../../gcc-2.7.2/ada a-calcon.adb

   leads to the following :

   /var/tmp/cca002bf.s: Assembler messages:
   /var/tmp/cca002bf.s:9: Error: invalid instruction for this architecture;
   needs fpu (68040, 68060 or 68881/68882) -- statement `fmovem #0xfc,sp@-'
   ignored
   xgcc: Internal compiler error: program as got fatal signal 10

  :-(

  Of course, the runtime is not ported yet, so I don't expect it to be 
  completely operational at this time. However, I do not understand how the
  compilation of an ada file, having specified special options, could lead 
  to an assembly file still containing unsupported statements for the given
  target. 

  I have no such problem with the whole set of C files involved in the
  construction of the embedded OS, and a "file *.o" on the first Ada
  compiled objects gives "old sun-2 executable not stripped" which seems
  nice. Without the -mxxx options, I get "mc68020 executable ..." which
  are clearly not supported by the target, but which show that the options
  I give do have an effect somewhere :-).

  Any help would be greatly appreciated.

  Thanks in advance.

  Olivier

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