Re: [microblaze-uclinux] Microblaze GNU Toolchain

[John Williams <jwilliams@xxxxxxxxxxxxxx>]

Hi BG,

Laboratoire LASSO wrote:
> I have installed the Microblaze GNU Toolchain Linux Binaries on my
> computer. 
> 
> When I tried 
> 
> mb-gcc test.c

> 
> usr/share/ecos/gnutools/microblaze-elf/bin/../lib/gcc-lib/microblaze/2.95.3-4/../../../../microblaze/lib/libc.a(write.o): In function `write':
> 
> write.o(.text+0x34): undefined reference to `outbyte'
> 
> write.o(.text+0x4c): undefined reference to `outbyte'

Are you hoping to generate a uClinux application, or a "standalone" 
microblaze program?

Either way, you can't do it just like this.  The compiler doesn't know 
where to find the library files.

To generate an application to run under uClinux, integrate it within the 
/uClinux-dist/user hierarchy, and create a Makefile etc (see any of the 
other /user/ apps for details).  This is necessary to get it to link 
properly against uClibc.

Or, to generate a stand-alone microblaze program, you need to specify 
the libs explicitly.  One way of doing this is look at the mb-gcc 
command lines generated by Platform Studio, and copy accordingly.

> mb-gcc–c test.c
> 
> Works well. I get test.o

Yes, because it's only compiling, not linking.

Regards,

John


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