Re: Target gdb

[Khem Raj <khem at mvista dot com>]

Earl Olsen said the following on 02/03/2006 07:38 AM:
>  
>
> Using crosstools, I've build a powerpc cross compiler, glibc, gdbserver,
> etc.
> Now I try to build gdb for the target:
>
> # Build target termcap libary (target gdb requires it)
>
>     cd $BUILD_TMP_DIR/build-termcap
>     CC=$TARGET-gcc $BUILD_TMP_DIR/$TERMCAP_DIR/configure \
>         --host=$TARGET --prefix=$PREFIX/$TARGET
>     make
>     make oldincludedir="" install
>
> # Build target gdb (i.e. gdb that runs on target)
>
>     cd $BUILD_TMP_DIR/build-gdb
>     CC=$TARGET-gcc $BUILD_TMP_DIR/$GDB_DIR/configure \
>         --host=$TARGET --prefix=$PREFIX/$TARGET
>     make BUILD_SUBDIR=""
>     make install
>
> And I get:
>
> checking whether to enable maintainer-specific portions of Makefiles...
> no
> checking for makeinfo... makeinfo
> checking for perl... perl
> checking build system type... powerpc-unknown-linux-gnu
> checking host system type... powerpc-unknown-linux-gnu
> checking for powerpc-linux-ar... powerpc-linux-ar
> checking for powerpc-linux-ranlib... powerpc-linux-ranlib
> checking for powerpc-linux-gcc... powerpc-linux-gcc
> checking for C compiler default output file name... a.out
> checking whether the C compiler works... configure: error: cannot run C
> compiled programs.
> If you meant to cross compile, use `--host'.
> See `config.log' for more details.
> make: *** [configure-libiberty] Error 1
>
> Any ideas?
>   
because the configury does not know about your build system it thinks 
that the native build it being done on a powerpc machine and tries to 
run the a.out which is to be run on powerpc machine on your host machine 
which I guess is a x86 machine. Thats the problem you are seeing. If you 
add --build option to the configure call it should be able to find out 
that the build machine is not same as host machine.
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>   


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