Hi Arnaldo,
On Fri, 7 Nov 2014 12:26:18 -0300, Arnaldo Carvalho de Melo wrote:
> Em Fri, Nov 07, 2014 at 02:20:05PM +0900, Namhyung Kim escreveu:
>> It'll be used to show (userspace) symbol names when libelf isn't (or
>> cannot be) linked.
>
> Does this deals with prelink, etc?
I believe so. :)
>
>> # Overhead Command Shared Object Symbol
>> # ........ .......... ................. .........................
>> #
>> 37.01% mem-memcpy libc-2.17.so [.] __memcpy_ssse3_back
namhyung@sejong:linux$ readelf -WS /lib64/libc-2.17.so | grep prelink
[41] .gnu.prelink_undo PROGBITS 0000000000000000 200368 000c30 01
0 0 8
namhyung@sejong:linux$ nm /lib64/libc-2.17.so | grep __memcpy_ssse3_back
0000003153f46f40 t __memcpy_ssse3_back
Thanks,
Namhyung
>> 24.25% perf ld-2.17.so [.] _dl_relocate_object
>> 22.16% perf [kernel.kallsyms] [k] kmem_cache_alloc
>> 14.29% mem-memset libc-2.17.so [.] __memset_sse2
>> 2.21% perf [kernel.kallsyms] [k] flush_signal_handlers
>> 0.07% perf [kernel.kallsyms] [k] intel_pmu_enable_all
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