Issue installing a GNAT cross-compiler

[Jan.Sommer at dlr.de]

Hi Gabriel,

It's quite some time since I last built the cross compiler with Ada.
Maybe this could help you?: http://taste.tuxfamily.org/wiki/index.php?title=Building_a_TASTE-y_RTEMS
You can skip the sparc-specific things. I used to build it for the RaspberryPi, so it should work on ARM in general.

@Chris: I just noticed that the rsb uses gcc 4.9.3 in the 4.11 branch. Could we update that to 4.9.4? This version will have the patch for Ada on RTEMS.

Best regards,

 Jan


> -----Original Message-----
> From: users [mailto:users-bounces at rtems.org] On Behalf Of Gabriel Brusq
> Sent: Tuesday, May 09, 2017 1:35 PM
> To: users at rtems.org
> Subject: Issue installing a GNAT cross-compiler
> 
> Issue installing a GNAT cross-compiler
> 
> Hello,
> 
> I am trying to build a GNAT cross-compiler for xilinx zynq zedboard (ARM Cortex-
> A9) and I'm facing the well known issue "fatal error: sys/socket.h: No such file or
> directory"
> I have read previous threads regarding this error and followed recommendations
> but the trouble persists
> 
> What I have done up to now:
> 
> - Installation of native gcc-4.8.2 and binutils-2.4
> - Installation of cross-compiler (same versions) WITHOUT ada support
> 
> - Installation of rtems-4.11 WITHOUT ada support, to generate the missing
> <sys/socket.h> [1]
>                 ../rtems/configure --target=arm-rtems4.11 --enable-rtemsbsp="xilinx-
> zynq" --enable-networking --enable-posix --enable-cxx --enable-tests --enable-
> multilib --prefix=$RTEMS_INSTALL_DIR
> 
> - Trying to build GNAT cross-compiler WITH ada support but ran into issue "fatal
> error: sys/socket.h: No such file or directory"
>                 ../gcc-4.8.2/configure --enable-threads=rtems --with-gnu-as --with-
> gnu-ld --with-newlib --verbose --with-system-zlib --disable-nls --enable-version-
> specific-runtime-libs --enable-languages="c,c++,ada" --target=arm-rtems4.11 --
> prefix=$PREREQUISITES_INSTALL_DIR/gcc-cross-c-cpp-ada-4.8.2 --with-
> gmp=$PREREQUISITES_INSTALL_DIR --with-
> mpfr=$PREREQUISITES_INSTALL_DIR --with-
> mpc=$PREREQUISITES_INSTALL_DIR --with-isl=$PREREQUISITES_INSTALL_DIR
> 
> 
> I think I missed a step after generating socket.h I checked that rtems install
> directory is in $PATH but I do not know if there are other tips to do for this
> header to be found during the GNAT cross compiler build
> 
> Can someone clarify that for me
> 
> Thank you for your help
> Regards,
> Gabriel Brusq
> 
> 
> References:
> [1] gsocket.h
> /*
> * RTEMS has these .h files but not until you have built and installed RTEMS.
> * When building a C/C++ toolset, you also build the newlib C library, so the
> * build procedure for an RTEMS GNAT toolset requires that you build a C/C++
> * toolset, then build and install RTEMS with --enable-multilib, and finally
> * build the Ada part of the toolset.
> */
> 
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