Failed to crosscompile rtems.

[haithem rahmani]

Got the reason!

On Thu, Jun 2, 2016 at 10:54 AM, haithem rahmani <haithem.rahmani at gmail.com>
wrote:

> Hi,
>
> I'm trying to crosscompile the rtems on Fedora 23 using the ARM GNU
> toolchain, but I failed to.
>
> the first problem I met was the following:
>
> configure: error: in
> `/home/rahmanih/work/git_repos/misc/rtems/__build__/arm-linux-gnu/tools/build':
> configure: error: C compiler cannot create executables
> See `config.log' for more details
> configure: error: /bin/sh '../../../../tools/build/configure' failed for
> tools/build
>
>
> since the 'tools' are supposed to be host binaries, I've forced the CC and
> the CXX to use the host compilers as below.
>
>
> diff --git a/tools/build/configure.ac b/tools/build/configure.ac
> index d1e22da..0a0bff8 100644
> --- a/tools/build/configure.ac
> +++ b/tools/build/configure.ac
> @@ -2,6 +2,8 @@ AC_PREREQ([2.69])
>  AC_INIT([rtems-tools-build],[_RTEMS_VERSION],[
> https://devel.rtems.org/newticket])
>  AC_CONFIG_SRCDIR([install-if-change.in])
>  RTEMS_TOP(../..)
> +CC=gcc
> +CXX=g++
>
>  AC_CANONICAL_HOST
>
>
> the configure step was o.k, but got errors when building, below are more
> details:
>
> make[3]: Entering directory
> '/home/rahmanih/work/git_repos/misc/rtems/__build__/arm-linux-gnu/c/stm32f4'
> gmake[3]: Leaving directory
> '/home/rahmanih/work/git_repos/misc/rtems/__build__/arm-linux-gnu/c/stm32f4'
> checking for RTEMS_CPU_MODEL...
> checking for RTEMS_BSP_FAMILY... stm32f4
> checking for CPU_CFLAGS... (cached) -march=armv7-m -mthumb
> checking for CFLAGS_OPTIMIZE_V... (cached) -O2 -g -ffunction-sections
> -fdata-sections
> checking for style of include used by gmake... GNU
> checking for arm-linux-gnu-gcc... arm-linux-gnu-gcc
> checking for arm-linux-gnu-gcc... (cached) arm-linux-gnu-gcc
> checking whether the C compiler works... no
> configure: error: in
> `/home/rahmanih/work/git_repos/misc/rtems/__build__/arm-linux-gnu/c/stm32f4':
> configure: error: C compiler cannot create executables
>
>
> the config.log contains:
>
> configure:3523: checking whether the C compiler works
> configure:3545: arm-linux-gnu-gcc -march=armv7-m -mthumb -O2 -g
> -ffunction-sections -fdata-sections   conftest.c  >&5
> /usr/bin/arm-linux-gnu-ld: cannot find crt1.o: No such file or directory
> /usr/bin/arm-linux-gnu-ld: cannot find crti.o: No such file or directory
> /usr/bin/arm-linux-gnu-ld: cannot find -lc
> /usr/bin/arm-linux-gnu-ld: cannot find crtn.o: No such file or directory
> collect2: error: ld returned 1 exit status
> configure:3549: $? = 1
>
> the command I used to configure the rtems is:
> $> ../configure --host=arm-linux-gnu --enable-rtemsbsp=stm32f4
> --enable-networking --enable-posix --enable-cxx
>
>
> any idea about the issue?
>
> regards
> Haithem.
>
> --
> *Never say that's "impossible", the word itself says "I'm Possible"*
>



-- 
*Never say that's "impossible", the word itself says "I'm Possible"*
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