Re: Compilation error when doing user space probe on FC9.

[Jim Keniston <jkenisto at us dot ibm dot com>]

On Fri, 2008-12-05 at 12:19 +0800, Wenji Huang wrote:
...
> Yes, this error is specific to 2.6.25 Fedora shipment kernel. Works fine
> on 2.6.28-rc7+latest utrace patch. But got warning on 2.6.27.5-41.fc9 
> kernel.
> 
> In file included from 
> /usr/local/share/systemtap/runtime/uprobes/../uprobes2/uprobes_arch.c:2,
>                   from 
> /usr/local/share/systemtap/runtime/uprobes/../uprobes2/uprobes.c:2795,
>                   from 
> /usr/local/share/systemtap/runtime/uprobes/uprobes.c:8:
> /usr/local/share/systemtap/runtime/uprobes/../uprobes2/uprobes_x86.c: In 
> function âhandle_riprel_insn':
> /usr/local/share/systemtap/runtime/uprobes/../uprobes2/uprobes_x86.c:420: 
> warning: passing argument 2 of âconstant_test_bit' from incompatible 
> pointer type
> /usr/local/share/systemtap/runtime/uprobes/../uprobes2/uprobes_x86.c:420: 
> warning: passing argument 2 of âvariable_test_bit' from incompatible 
> pointer type
> /usr/local/share/systemtap/runtime/uprobes/../uprobes2/uprobes_x86.c:423: 
> warning: passing argument 2 of âconstant_test_bit' from incompatible 
> pointer type
> /usr/local/share/systemtap/runtime/uprobes/../uprobes2/uprobes_x86.c:423: 
> warning: passing argument 2 of âvariable_test_bit' from incompatible 
> pointer type

Yeah, somebody has mucked with the definitions of constant_test_bit()
and variable_test_bit().  On lines 420 and 423, could you try casting
twobyte_has_modrm and onebyte_has_modrm, respectively, to (unsigned
long*)?  If that doesn't work, try casting them to (const unsigned
long*).

Thanks.
Jim

> 
> 
> Regards,
> Wenji