[PATCH]: catering for attribute_group shifting from header to C file in the linux kernel

[Peter Teoh]

First I encountered the following when probing the following stap file:

probe kernel.function("*@mm/swapfile.c").call {
        printf ("%s -> %s\n", thread_indent(1), probefunc())
        print_backtrace();
        printf("\n");
}
probe kernel.function("*@mm/swapfile.c").return {
        printf ("%s <- %s\n", thread_indent(-1), probefunc())
        printf("\n");
}

In file included from
/usr/local/share/systemtap/runtime/transport/transport.c:22,
                 from /usr/local/share/systemtap/runtime/print.c:17,
                 from /usr/local/share/systemtap/runtime/runtime.h:82,
                 from
/tmp/stapD0oUOK/stap_24573f70afadcc1e52bf6cb62ce0c1f1_12247.c:41:
/usr/local/share/systemtap/runtime/transport/symbols.c: In function
'_stp_load_module_symbols':
/usr/local/share/systemtap/runtime/transport/symbols.c:407: error:
dereferencing pointer to incomplete type
/usr/local/share/systemtap/runtime/transport/symbols.c:425: error:
dereferencing pointer to incomplete type
/usr/local/share/systemtap/runtime/transport/symbols.c:427: error:
dereferencing pointer to incomplete type
/usr/local/share/systemtap/runtime/transport/symbols.c:456: error:
dereferencing pointer to incomplete type
/usr/local/share/systemtap/runtime/transport/symbols.c:457: error:
dereferencing pointer to incomplete type
/usr/local/share/systemtap/runtime/transport/symbols.c:460: error:
dereferencing pointer to incomplete type

And then I applied the patch as per attached, and did a compilation of
the temporary stap module in my linux kernel tree, it was successful:

/mnt/hd0/download/linux-2.6-latest>make
/tmp/stapL1n2n6/stap_dcc3707b505ec80a8051fda8cee6633c_12247.ko

Reason was because attribute_group is now declared in a C file in the
linux kernel.

-- 
Regards,
Peter Teoh
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