Re: linux->a29k-coff compiling error

[james <zhz at public1 dot sta dot net dot cn>]

Hi joel,

At 07:30 00-1-4 -0600, Joel Sherrill wrote:
>
>Brendan is right.  This error normally occurs when compiling the
>support gcc libraries cross and is indicative of using the wrong
>assembler.  But this time, you are pretty far along in the 
>compilation process.  It looks like C++ is forcing the a29k backend
>to produce bad assembly code or the a29k binutils is not accepting
>valid a29k code.  The thing to do at this point is:
>
>1.  Investigate further.  cd to the appropriate directory in the
>    build tree and execute the command by hand adding the "-S"
>    option to get an assembly file.  Then assembly it by hand.
>    Figure out whether the assembly language in question is good 
>    or bad.  If it is good and binutils is not accepting it, then
>    you have a binutils bug.  Otherwise, gcc is producing bad
>    assembly code.  In that case, look at the -d options to gcc.
>    The more information in your bug report the better. There are
>    not many a29k users left.
>

	thanks for your reply, I'll investigate later.

>2.  For now, only compile C to avoid this. :)
>

your are right, I have to remove the C++ support, below is my config.status
file:


#!/bin/sh
# This file was generated automatically by configure.  Do not edit.
# This directory was configured as follows:
../gcc-2.95.2/configure
--with-gcc-version-trigger=/tar-files/gcc-src/gcc-2.95.2/gcc/version.c
--host=i586-pc-linux-gnu --target=a29k-coff --prefix=/sw/newtools
--with-gnu-as --with-gnu-ld --with-newlib --enable-languages=c -v
--norecursion 
# 

but I got the error msg:

	../../gcc-2.95.2/gcc/combine.c:3362: warning: integer overflow in expression
	../../gcc-2.95.2/gcc/combine.c:3367: warning: integer overflow in expression

what does this mean ?

thanks in advance

regards/james




gcc -c -DCROSS_COMPILE -DIN_GCC     -g -O2  -DHAVE_CONFIG_H    -I.
-I../../gcc-2.95.2/gcc -I../../gcc-2.95.2/gcc/config
-I../../gcc-2.95.2/gcc/../include ../../gcc-2.95.2/gcc/loop.c
gcc -c -DCROSS_COMPILE -DIN_GCC     -g -O2  -DHAVE_CONFIG_H    -I.
-I../../gcc-2.95.2/gcc -I../../gcc-2.95.2/gcc/config
-I../../gcc-2.95.2/gcc/../include ../../gcc-2.95.2/gcc/unroll.c
gcc -c -DCROSS_COMPILE -DIN_GCC     -g -O2  -DHAVE_CONFIG_H    -I.
-I../../gcc-2.95.2/gcc -I../../gcc-2.95.2/gcc/config
-I../../gcc-2.95.2/gcc/../include ../../gcc-2.95.2/gcc/flow.c
gcc -c -DCROSS_COMPILE -DIN_GCC     -g -O2  -DHAVE_CONFIG_H    -I.
-I../../gcc-2.95.2/gcc -I../../gcc-2.95.2/gcc/config
-I../../gcc-2.95.2/gcc/../include ../../gcc-2.95.2/gcc/stupid.c
gcc -c -DCROSS_COMPILE -DIN_GCC     -g -O2  -DHAVE_CONFIG_H    -I.
-I../../gcc-2.95.2/gcc -I../../gcc-2.95.2/gcc/config
-I../../gcc-2.95.2/gcc/../include ../../gcc-2.95.2/gcc/combine.c
../../gcc-2.95.2/gcc/combine.c: In function `simplify_rtx':
../../gcc-2.95.2/gcc/combine.c:3362: warning: integer overflow in expression
../../gcc-2.95.2/gcc/combine.c:3367: warning: integer overflow in expression
gcc -c -DCROSS_COMPILE -DIN_GCC     -g -O2  -DHAVE_CONFIG_H    -I.
-I../../gcc-2.95.2/gcc -I../../gcc-2.95.2/gcc/config
-I../../gcc-2.95.2/gcc/../include ../../gcc-2.95.2/gcc/varray.c
gcc -c -DCROSS_COMPILE -DIN_GCC     -g -O2  -DHAVE_CONFIG_H    -I.
-I../../gcc-2.95.2/gcc -I../../gcc-2.95.2/gcc/config
-I../../gcc-2.95.2/gcc/../include ../../gcc-2.95.2/gcc

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>
>-- 
>Joel Sherrill, Ph.D.             Director of Research & Development
>joel@OARcorp.com                 On-Line Applications Research
>Ask me about RTEMS: a free RTOS  Huntsville AL 35805
>   Support Available             (256) 722-9985
>

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