On Fri, Mar 16, 2012 at 2:50 PM, Nick Foster
<address@hidden> wrote:
On Fri, Mar 16, 2012 at 11:42 AM, Frederick Stevens
<address@hidden> wrote:
Rafael,
Here is the output from gdb:
RUN_VOLK_TESTS: volk_32fc_32f_multiply_32fc_a
Program received signal SIGSEGV, Segmentation fault.
0xb7f2c6e0 in volk_32fc_32f_multiply_32fc_a_generic ()
from /home/fred/extras/gnuradio/gnuradio/build/volk/lib/libvolk.so.0.0.0
Dump of assembler code for function volk_32fc_32f_multiply_32fc_a_generic:
0xb7f2c6c0 <+0>: push %ebp
0xb7f2c6c1 <+1>: mov %esp,%ebp
0xb7f2c6c3 <+3>: push %edi
0xb7f2c6c4 <+4>: push %esi
0xb7f2c6c5 <+5>: mov 0x8(%ebp),%edx
0xb7f2c6c8 <+8>: mov 0xc(%ebp),%ecx
0xb7f2c6cb <+11>: mov 0x10(%ebp),%edi
0xb7f2c6ce <+14>: mov 0x14(%ebp),%esi
0xb7f2c6d1 <+17>: test %esi,%esi
0xb7f2c6d3 <+19>: je 0xb7f2c6fc <volk_32fc_32f_multiply_32fc_a_generic+60>
0xb7f2c6d5 <+21>: xor %eax,%eax
0xb7f2c6d7 <+23>: mov %esi,%esi
0xb7f2c6d9 <+25>: lea 0x0(%edi,%eiz,1),%edi
=> 0xb7f2c6e0 <+32>: flds (%edi,%eax,8)
0xb7f2c6e3 <+35>: flds (%ecx,%eax,8)
0xb7f2c6e6 <+38>: fmul %st(1),%st
0xb7f2c6e8 <+40>: fxch %st(1)
0xb7f2c6ea <+42>: fmuls 0x4(%ecx,%eax,8)
0xb7f2c6ee <+46>: fxch %st(1)
0xb7f2c6f0 <+48>: fstps (%edx,%eax,8)
0xb7f2c6f3 <+51>: fstps 0x4(%edx,%eax,8)
0xb7f2c6f7 <+55>: inc %eax
0xb7f2c6f8 <+56>: cmp %eax,%esi
0xb7f2c6fa <+58>: ja 0xb7f2c6e0 <volk_32fc_32f_multiply_32fc_a_generic+32>
0xb7f2c6fc <+60>: pop %esi
0xb7f2c6fd <+61>: pop %edi
0xb7f2c6fe <+62>: pop %ebp
0xb7f2c6ff <+63>: ret
End of assembler dump.
I omitted the first part of the program execution since everything seemed to be working fine. Hope this helps. Let me know if you would like me to try something else.
Cheers,
Fred
OK, that's weird as hell. That's the generic implementation, which is just a std::complex multiply in a for loop. Can you give me your gcc version?
--n
Yep, that shouldn't be a problem. Fred, can you also give us the backtrace?
You might have to recompile volk with debugging turned on (passing -DCMAKE_BUILD_TYPE="Debug" to cmake).
Thanks,
Tom