dtracing static symbols
Mark Johnston
markj at freebsd.org
Wed Mar 12 04:56:57 UTC 2014
On Wed, Mar 12, 2014 at 12:53 AM, Daniel O'Connor <doconnor at gsoft.com.au> wrote:
>
> On 12 Mar 2014, at 15:22, Mark Johnston <markj at freebsd.org> wrote:
>> On Wed, Mar 12, 2014 at 12:50 AM, Daniel O'Connor <doconnor at gsoft.com.au> wrote:
>>>
>>> On 12 Mar 2014, at 15:15, Prashanth Kumar <pra_udupi at yahoo.co.in> wrote:
>>>> If you run
>>>> # env DTRACE_DEBUG=1 dtrace -Ppid\$target -l -c ./static
>>>> you will notice that lot of probe creation will fail, also no probes are created for instruction offsets.
>>>> you will have to update the libproc library and fasttrap code to trace all the
>>>> functions.
>>>
>>> I don't really care about the function offsets, just static functions.
>>>
>>> Or are you suggesting updating libproc and the fasttrap code will allow that (as well as instruction offsets)?
>>
>> I'd suggest updating to 9-STABLE. There have been quite a few fixes to
>> fasttrap and libproc since 9.2.
>
> OK, I'll give it a try.
>
> Have things change substantially in 10? Updating to that is probably going to be as easy (famous last words :)
No, STABLE-9 and STABLE-10 should be more or less identical as far as
userland DTrace is concerned. There are some extra changes on CURRENT,
but I don't think they'd affect the behaviour you're seeing.
-Mark
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