[ trouble building MIPS gcc on Linux pc]

[ trouble building MIPS gcc on Linux pc]

[Robert Trask]

Hello,
I'm trying to build a MIPS big-endian cross compiler for  gcc ver 3.0.4 
on a Linux pc (Intel cpu) using [native] gcc ver 3.2.


I configure with the following:
./configure --target=mips-\*-linux-gnu

OR
./configure --target=mipsbe-\*-linux-gnu

then just run make.

In either case I get an error message:
/export/home/bob/tools/gcc/gcc-3.0.4/gcc/xgcc 
-B/export/home/bob/tools/gcc/gcc-3.0.4/gcc/ 
-B/usr/local/mips-*-linux-gnu/bin/ -B/usr/local/mips-*-linux-gnu/lib/ 
-isystem /usr/local/mips-*-linux-gnu/include -DCROSS_COMPILE -DIN_GCC    
-W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes 
-isystem ./include  -I. -I. -I. -I./. -I./config -I./../include  -g0 \
  -finhibit-size-directive -fno-inline-functions \
  -fno-exceptions  -Dinhibit_libc \
  -c ./crtstuff.c -DCRT_BEGIN -o crtbegin.o
as: unrecognized option `-EB'


It seems the big-endian option is being passed to the native assembler 
which chokes on it.
What should I do differently? The same behavior occurs when I use an 
earlier [native] version of gcc.

Any insights would be appreciated.

Robert T. Trask

Re: [ trouble building MIPS gcc on Linux pc]

[Rogelio M.Serrano Jr.]

On 2003-11-11 11:04:36 +0800 Robert Trask <rtrask@earthlink.net> wrote:

> 
> 
> Hello,
> I'm trying to build a MIPS big-endian cross compiler for  gcc ver 
> 3.0.4 on a 
> Linux pc (Intel cpu) using [native] gcc ver 3.2.
> 
> 
> I configure with the following:
> ./configure --target=mips-\*-linux-gnu
> 
> OR
> ./configure --target=mipsbe-\*-linux-gnu
> 

you need to specify --host and/or --build

> then just run make.
> 
> In either case I get an error message:
> /export/home/bob/tools/gcc/gcc-3.0.4/gcc/xgcc 
> -B/export/home/bob/tools/gcc/gcc-3.0.4/gcc/ 
> -B/usr/local/mips-*-linux-gnu/bin/ -B/usr/local/mips-*-linux-gnu/lib/ 
> -isystem /usr/local/mips-*-linux-gnu/include -DCROSS_COMPILE -DIN_GCC 
>    -W 
> -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes 
> -isystem 
> ./include  -I. -I. -I. -I./. -I./config -I./../include  -g0 \
> -finhibit-size-directive -fno-inline-functions \
> -fno-exceptions  -Dinhibit_libc \
> -c ./crtstuff.c -DCRT_BEGIN -o crtbegin.o
> as: unrecognized option `-EB'
> 
> 
> It seems the big-endian option is being passed to the native 
> assembler which 
> chokes on it.
> What should I do differently? The same behavior occurs when I use an 
> earlier 
> [native] version of gcc.
> 
> Any insights would be appreciated.
> 
> Robert T. Trask
> 
> 
> 
> 
> 
> 
> 
> 

Re: [ trouble building MIPS gcc on Linux pc]

[Dara Hazeghi]

Hello,

building a cross compiler is a relatively involved
process. For an overview, see the CrossGCC FAQ (a bit
outdated, but still pretty good):
<http://www.sthoward.com/CrossGCC/FAQ-4.html#ss4.2>.

For your problem, you need to download and install
cross binutils (configuring with
--target=mips-linux-gnu should be good enough).

However, to build gcc you'll need mips-linux libraries
and headers. You'll either need to extrac them from an
existing installation, or build them as part of the
process. Simpler approach is using prebuilt ones. See
<http://bytesex.org/cross-compiler.html> for an
example of how. If you actually want to build
everything from scratch, Dan Kegel's crosstool is
likely to help considerably
<http://www.kegel.com/crosstool/>.

Also, you may want to address future questions to the
crossgcc mailing list: crossgcc@sources.redhat.com
(see <http://sources.redhat.com/ml/crossgcc>).

Cheers,

Dara

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