[Fwd: sh4-cross-compiling-gcc-3.0.2 build fails during assembly]
Thu Jan 17 03:45:00 GMT 2002
Dan Kegel wrote:
> Hey folks,
> we're having a problem building gcc-3.0.2 for sh4 on an x86 system.
> It looks like the build process for gcc is using 'as' without
> a prefix, so it's getting the system 'as', which can't understand
> the output of sh4 gcc (naturally).
This is completely right, each cross-compiler has its 'ar', 'as', 'ld',
'nm', 'ranlib' etc. in its own '$prefix/$target/bin', but the '$prefix'
is normally common for all the cross-tools and the '$prefix/bin' has the
tools used by the human user with the names '$target-<tool>', for instance
The rules say that binutils and GCC for a target must be configured to
use the same $prefix and $target names. If not, 'make install' puts them
to the wrong '$prefix/$target/bin' for GCC to find them... Just check
this from your GCC-manual, the section "Installation / Cross-Compiler".
When you used prebuilt binutils, libs and headers for the target, you
should have preinstalled them under your chosen '$prefix/$target'.
> We used strace on the problem line, and verified that xgcc was
> searching the path for 'as'.
If the 'as' for the target is not in the needed '$prefix/$target/bin',
(or in any directory given by './xgcc -print-search-dirs') the 'as' in
the system PATH will be used...
> What are we doing wrong here?
> > /home/dank/sh4-gcc/gcc-build/gcc/xgcc
> > -B/home/dank/sh4-gcc/gcc-build/gcc/
> > -B/opt/hardhat/devkit/sh/sh4_le/sh4-linux/bin/ <---- !
> > -B/opt/hardhat/devkit/sh/sh4_le/sh4-linux/lib/ <---- !
> > -isystem /opt/hardhat/devkit/sh/sh4_le/sh4-linux/include <---- !
The last three rows show where the binaries, libraries and headers for
the 'sh4-linux' target are sought. So your chosen $prefix for GCC is the:
and the chosen $target is the:
So your binutils for the 'sh4-linux' target should be in the shown
'/opt/hardhat/devkit/sh/sh4_le/sh4-linux/bin/' with their base names.
If they aren't there, that is the big problem...
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