Hello Andrew and Richard,
On 03/07/2012 08:38 PM, Richard Henderson wrote:
On 03/07/12 10:44, Andrew MacLeod wrote:
> rth, you are familiar with how this part is suppose to hook up properly...
>
> I traced the code in expand_mem_thread_fence, and the sync_synchronize is
being emiited by:
>
> else if (synchronize_libfunc != NULL_RTX)
> emit_library_call (synchronize_libfunc, LCT_NORMAL, VOIDmode, 0);
>
> presumably something just isn't being linked to the executable? or maybe
not being built into libgcc?
These functions are in libgcc, but only built for linux.
See libgcc/config/arm/t-linux-eabi.
thanks for the hints. Thus if we want to use the C++ atomic operations on
32-bit ARM in RTEMS we have to implement everything in
libgcc/config/arm/linux-atomic.c
and place it in e.g.
libgcc/config/arm/rtems-atomic.c
?
I guess similar procedures are required for other architectures.
Have a nice day!
--
Sebastian Huber, embedded brains GmbH
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