[zeromq-dev] Seg fault in

[Martin Townsend]

This was down to a compiler issue. Anyone else wishing to build the 
library for Microblaze should use GCC version >= 4.9

Regards,
Martin.

On 13/06/14 16:46, Martin Townsend wrote:
> Hi,
>
> I've cross compiled the 4.0.4 sources of zeromq for Microblaze using
> both --with-poller=select and leaving the default setting (which is
> epoll) and in both libraries I get a seg fault when tyring to bind to an
> IPC socket.  The linux version is 3.14.
> Here is the code I'm trying to run:
>     context = zmq_ctx_new ();
>     publisher = zmq_socket (context, ZMQ_PUB);
>     rc = zmq_bind (publisher, "ipc://xpwrd.ipc");
>     assert (rc == 0);
>
> Here's the stack for the select version
> Thread [3] (Suspended: Signal 'SIGSEGV' received. Description:
> Segmentation fault.)
>       6 <symbol is not available> 0x90078eb0
>       5 zmq::select_t::loop() select.cpp:197 0x48053a58
>       4 zmq::select_t::worker_routine() select.cpp:211 0x48053bc0
>       3 thread_routine() thread.cpp:81 0x480660cc
>       2 start_thread() pthread_create.c:314 0x48095180
>       1 clone() clone.S:65 0x483784ec
>
> The offending line is
> void zmq::select_t::loop ()
>           ....
>               if (FD_ISSET (fds [i].fd, &readfds))
>                   fds [i].events->in_event ();
>           }
> I've tried stepping and it looks like in_event is not a function and it
> jumps to an out of range address.
>
> Any help is greatly appreciated.
>
> -Martin.
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