Hi!
Thank, Tim has implemeted your bugfix idea.
Cu... Stefan
On Sat, Feb 09, 2008 at 03:29:58PM +0100, Sam Hocevar wrote:
> birnetcdefs.h has the following declaration:
>
> typedef union {
> void *cond_pointer;
> BirnetUInt8 cond_dummy[MAX (8, BIRNET_SIZEOF_PTH_COND_T)];
> } BirnetCond;
>
> On 32-bit systems, this union is 32-bit aligned. The problem
> is that it is cast to a pthread_cond_t* pointer, for instance in
> birnetthreadimpl.cc, yet there is no knowledge about the pthread_cond_t
> alignment requirements. It causes crashes for instance on the sparc
> platform where pthread_cond_t has 64-bit members and thus requires
> 64-bit alignment.
>
> I suggest this simple solution. It may waste a few bytes on some
> platforms, but that is certainly negligible:
>
> typedef union {
> void *cond_pointer;
> BirnetUInt8 cond_dummy[MAX (8, BIRNET_SIZEOF_PTH_COND_T)];
> long long int align;
> } BirnetCond;
>
> I of course suggest doing the same to BirnetMutex.
--
Stefan Westerfeld, Hamburg/Germany, http://space.twc.de/~stefan
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