[PATCH v2 1/2] ppc64le: Store correct function entry address in symbol_table

[Naveen N. Rao]

On 2016/08/23 05:44AM, Ravi Bangoria wrote:
> PPC64 ELF ABI v2 has a Global Entry Point and a Local Entry Point for
> the functions. Debuginfo of ELF contains GEP which is same as entrypc
> while symbol table contains GEP and offset, from which we can calculate
> LEP. LEP is used to call function within single CU, when TOC pointer
> update is not required. Placing a probe on LEP catches call from both
> the GEP and the LEP but, by default, systemtap probes on GEP.
> 
> For ppc64le, Systemtap stores LEP in symbol table and prioritize symbol
> table over debuginfo. But, storing LEP in symbol table has couple of
> regression effect. As LEP is only required at a time of adding a probe,
> don't store it in symbol table.
> 
> No need to prioritize symbol table as well because debuginfo and symbol
> table both will contain Global Entry Point.
> 
> Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
> ---
> Changes in v2:
>   - Little bit change in patch description, no logical changes.

You should also mention that this reverts whatever commit that this 
does...

- Naveen