[Olsr-dev] ARM Telefon

[Henning Rogge]

Am Tue August 11 2009 09:14:47 schrieb Sven-Ola Tücke:
> Ah - sorry. Wrong list - wrong language.
>
> Olsrd should run on an ARM CPU to my knowledge. So I have installed a
> typical build tool chain on my new Android Mobile. When I start make, there
> are lots of Warnings stating: "src/ipcalc.c:164: error: cast increases
> required alignment of target type". If I start olsrd, it shows "BUS error"
> after a short time. Well - those warnings are obviously serious.
>
> OK - some pointer magic added to overcome the warnings. Does anybody know
> some background to this (I'm not an ARM freak). I think about something
> like this:
>
> diff -r a651cc474e85 src/common/list.h
> --- a/src/common/list.h	Sun Aug 09 09:00:01 2009 +0200
> +++ b/src/common/list.h	Tue Aug 11 07:09:12 2009 +0000
> @@ -136,7 +136,7 @@
>  {\
>    return( \
>      ptr ? \
> -      (structname *) (((uint8_t *) ptr) - offsetof(structname,
> listnodename))
>
> : \
>
> +      (structname *) (((size_t) ptr) - offsetof(structname, listnodename))
> : \ NULL); \
>  }
>
> diff -r a651cc474e85 src/lq_packet.h
> --- a/src/lq_packet.h	Sun Aug 09 09:00:01 2009 +0200
> +++ b/src/lq_packet.h	Tue Aug 11 07:09:12 2009 +0000
> @@ -126,7 +126,7 @@
>  static INLINE void
>  pkt_get_u16(const uint8_t ** p, uint16_t * var)
>  {
> -  *var = ntohs(*(const uint16_t *)(*p));
> +  *var = ntohs(**((const uint16_t **)p));
>    *p += sizeof(uint16_t);
>  }
>  static INLINE void
And the pkt_get_u32 is totally broken (and unused ^^).

Thanks for catching this.

Henning

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