[riot-users] Problem with building Riot and C++ in stm32f4discovery

DangNhat PhamHuu phamhuudangnhat at gmail.com
Wed Nov 12 03:34:57 CET 2014


Hi simon,

Is this a known Problem and if so is there a fix or a workaround?


Yes,  the problem with _kill_r and _kill is known to us for quite a while.
The easiest way to workaround with it is to comment out _kill_r and
implement _kill (maybe a stub will do) in syscall.c of stm32f4. Or you can
try with this pull request [1] ;-)

Cheers,
Nhat.

[1] https://github.com/RIOT-OS/RIOT/pull/1985/files.

/**
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On 12 November 2014 05:12, simon <brummer.simon at googlemail.com> wrote:

> Hi there,
>
> I am new to RIOT and i would like to use C++11 on a stm32f4discovery
> Board. I am working with the arm-none-eabi-g++ compiler(version 4.9.1)
> under Arch Linux.
>
> The Projekt I am trying to build is a copy of the riot_and_cpp example.
>
> Building with BOARD=stm32f4discovery gets the following output:
>
>
>         There are unsatisfied feature requirements: cpp
>
>         EXPECT ERRORS!
>
>         Building application riot-synth for stm32f4discovery w/ MCU
>         stm32f4.
>         "make" -C /home/simon/git-repos/RIOT/boards/stm32f4discovery
>         "make" -C /home/simon/git-repos/RIOT/core
>         "make" -C /home/simon/git-repos/RIOT/cpu/stm32f4
>         "make" -C /home/simon/git-repos/RIOT/cpu/cortex-m4_common
>         "make" -C /home/simon/git-repos/RIOT/cpu/stm32f4/periph
>         "make" -C /home/simon/git-repos/RIOT/drivers
>         "make" -C /home/simon/git-repos/RIOT/sys
>         "make" -C /home/simon/git-repos/RIOT/sys/auto_init
>         "make" -C /home/simon/git-repos/RIOT/sys/lib
>
> /usr/lib/gcc/arm-none-eabi/4.9.1/../../../../arm-none-eabi/lib/thumb/cortex-m4/float-abi-hard/fpuv4-sp-d16/libg.a(lib_a-signalr.o):
> In function `_kill_r':
>
> /build/arm-none-eabi-gcc/src/gcc-4.9.1/build/arm-none-eabi/thumb/cortex-m4/float-abi-hard/fpuv4-sp-d16/newlib/libc/reent/../../../../../../../../../newlib/libc/reent/signalr.c:57:
> multiple definition of `_kill_r'
>
> /home/simon/git-repos/RIOT/riot-synth/bin/stm32f4discovery/cpu/syscalls.o:/home/simon/git-repos/RIOT/cpu/stm32f4/syscalls.c:161:
> first defined here
>
> /usr/lib/gcc/arm-none-eabi/4.9.1/../../../../arm-none-eabi/lib/thumb/cortex-m4/float-abi-hard/fpuv4-sp-d16/libg.a(lib_a-signalr.o):
> In function `_kill_r':
>         signalr.c:(.text+0xe): undefined reference to `_kill'
>         collect2: error: ld returned 1 exit status
>         /home/simon/git-repos/RIOT/riot-synth/../Makefile.include:125:
>         die Regel für Ziel „all“ scheiterte
>         make: *** [all] Fehler 1
>
> Is this a known Problem and if so is there a fix or a workaround?
>
> Kind regards
>       Simon Brummer
>
> _______________________________________________
> users mailing list
> users at riot-os.org
> http://lists.riot-os.org/mailman/listinfo/users
>
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