[eresi-dev] Is etrace able to trace (GCC)c++ simbols ?
Groleo Marius
groleo at gmail.com
Thu Sep 17 06:57:39 UTC 2009
I added an integer parameter to foo, and it is able to add it to the trace,
but it can't be
run.
~/work/eresi > cat 1.c
void foo(int a) { ++a ; }
int main() {}
~/work/eresi > gcc -g 1.c
(etrace-0.82-b2-dev at local) load a.out
[*] Thu Sep 17 09:56:25 2009 - New object loaded : a.out
[*] New object dependences loaded : /lib/libc.so.6
[*] New object dependences loaded : /lib/ld-linux.so.2
(etrace-0.82-b2-dev at local) traces add foo
[*] Added function foo successfully into trace global
(etrace-0.82-b2-dev at local) tracerun
found relgotname = .elfsh.reldyn
[DEBUG_COPYPLT] Section Mirrored Successfully !
[E] Failed to run current trace
(etrace-0.82-b2-dev at local)
On Wed, Sep 16, 2009 at 11:40 PM, Julien Vanegue
<julien.vanegue at gmail.com>wrote:
> Yes, but the problem is not this. The problem is "cant find arguments" for
> foo (it has no arguments! so its normal)
>
> And since we only trace functions with arguments, and you requested only a
> single function to be traced, nothing is traced.
>
> This can be considered as a bug (I actually noticed it recently) and I will
> patch it ASAP.
>
> Julien
>
>
> On Wed, Sep 16, 2009 at 5:06 AM, Groleo Marius <groleo at gmail.com> wrote:
>
>> Could it be elfsh_extplt_mirror_sections at libelfsh/extplt.c:185 ?
>>
>>
>> On Wed, Sep 16, 2009 at 2:26 PM, Groleo Marius <groleo at gmail.com> wrote:
>>
>>>
>>>
>>> On Wed, Sep 16, 2009 at 11:56 AM, Groleo Marius <groleo at gmail.com>wrote:
>>>
>>>> (etrace-0.82-b2-dev at local) profile enable warn
>>>>
>>>> .:: Profiling enabled warnings
>>>>
>>>> (etrace-0.82-b2-dev at local) traces add foo
>>>>
>>>> [W] <elfsh_get_section_by_name_withlist at section.c:264> Section not
>>>> found[.strtab]
>>>>
>>>
>>>
>>> Correction, it's < Section not found[.elfsh.dynsym] >. I was printing
>>> the wrong string.
>>> Any ideea who puts .elfsh.dynsym section inside the binary ?
>>> readelf -S ./a.out doesn't seem to know anything about it.
>>>
>>>
>>>
>>>
>>>
>>>> [W] <elfsh_get_section_by_name at section.c:302> Section not
>>>> found[.elfsh.dynsym]
>>>> [W] <trace_search_uni at func_search.c:60> No debugging
>>>> informations available
>>>> [W] <elfsh_args_count_ia32 at ia32.c:1112> Can't find arguments
>>>> [*] Unable to add func at 0x08048394 into trace
>>>> [*] Added function foo successfully into trace global
>>>> (etrace-0.82-b2-dev at local)
>>>>
>>>>
>>>>
>>>>
>>>> On Wed, Sep 16, 2009 at 2:48 AM, Julien Vanegue <
>>>> julien.vanegue at gmail.com> wrote:
>>>>
>>>>> I see the following error:
>>>>>
>>>>> (etrace-0.82-b2-dev at local) traces add foo
>>>>>
>>>>> [*] Unable to add func at 0x08048394 into trace
>>>>> <-----------------------
>>>>> [*] Added function foo successfully into trace global
>>>>>
>>>>>
>>>>> Can you profile-warn for the traces command too ?
>>>>>
>>>>> Also, make sure you use the trace commands in the same way as in the
>>>>> example of the testsuite (testsuite/tracing)
>>>>>
>>>>> Julien
>>>>>
>>>>>
>>>>>
>>>>> On Tue, Sep 15, 2009 at 12:46 PM, Groleo Marius <groleo at gmail.com>wrote:
>>>>>
>>>>>> I managed to get the profiler to print the section name. This is the
>>>>>> first page of tracerun with profile enable warn
>>>>>>
>>>>>>
>>>>>> (etrace-0.82-b2-dev at local) tracerun
>>>>>>
>>>>>> [W] <elfsh_get_section_by_type_withlist at section.c:363>
>>>>>> Section not found ..
>>>>>> [W] <elfsh_get_section_by_type at section.c:410> Section
>>>>>> remained unfound
>>>>>> [W] <elfsh_get_reloc at reloc.c:279> Unable to
>>>>>> get reloc section
>>>>>> [W] <elfsh_get_section_by_name_withlist at section.c:264>
>>>>>> Section not found[.strtab]
>>>>>> [W] <elfsh_get_section_by_name at section.c:302> Section
>>>>>> not found[.debug_macinfo]
>>>>>> [W] <elfsh_get_dwarf_macinfo at dwarf.c:301> Unable to
>>>>>> find Dwarf abbrev table
>>>>>> [W] <elfsh_get_section_by_name_withlist at section.c:264>
>>>>>> Section not found[.strtab]
>>>>>> [W] <elfsh_get_section_by_name at section.c:302> Section
>>>>>> not found[.stab]
>>>>>> [W] <elfsh_get_stab at stab.c:63> Unable to
>>>>>> get STABS by name
>>>>>> [W] <elfsh_get_section_by_name_withlist at section.c:264>
>>>>>> Section not found[.strtab]
>>>>>> [W] <elfsh_get_section_by_name at section.c:302> Section
>>>>>> not found[.stab]
>>>>>>
>>>>>> [W] <elfsh_get_stab at stab.c:63> Unable to
>>>>>> get STABS by name
>>>>>> [W] <elfsh_get_section_by_type_withlist at section.c:363>
>>>>>> Section not found ..
>>>>>> [W] <elfsh_get_section_by_type at section.c:410> Section
>>>>>> remained unfound
>>>>>> [W] <elfsh_get_verdeftab at version.c:1408> Unable to
>>>>>> find Definition Version section
>>>>>> [W] <elfsh_get_notes at notes.c:59> Corrupted
>>>>>> Notes section
>>>>>> [W] <elfsh_get_sym_by_value at sym_common.c:308> No exact
>>>>>> symbol matching
>>>>>> [W] <elfsh_get_dynsymbol_by_name at dynsym.c:386> Symbol not
>>>>>> found
>>>>>> [W] <elfsh_get_dynsymbol_by_name at dynsym.c:386> Symbol not
>>>>>> found
>>>>>> [W] <elfsh_get_dynsymbol_by_name at dynsym.c:386> Symbol not
>>>>>> found
>>>>>> [W] <elfsh_get_dynsymbol_by_name at dynsym.c:386> Symbol not
>>>>>> found
>>>>>> [W] <elfsh_get_dynsymbol_by_name at dynsym.c:386> Symbol not
>>>>>> found
>>>>>> [W] <elfsh_get_dynsymbol_by_name at dynsym.c:386> Symbol not
>>>>>> found
>>>>>> [W] <elfsh_get_dynsymbol_by_name at dynsym.c:386> Symbol not
>>>>>> found
>>>>>> [W] <elfsh_get_dynsymbol_by_name at dynsym.c:386> Symbol not
>>>>>> found
>>>>>> [W] <elfsh_load_pht at pht.c:402> No PHT
>>>>>> [W] <elfsh_get_parent_segment at pht.c:465> Unable
>>>>>> to get parent PHDR
>>>>>> [W] <elfsh_load_pht at pht.c:402> No PHT
>>>>>> [W] <elfsh_get_parent_segment at pht.c:465> Unable
>>>>>> to get parent PHDR
>>>>>> [W] <elfsh_load_pht at pht.c:402> No PHT
>>>>>> [W] <elfsh_get_parent_segment at pht.c:465> Unable
>>>>>> to get parent PHDR
>>>>>> [W] <elfsh_load_pht at pht.c:402> No PHT
>>>>>> [W] <elfsh_get_parent_segment at pht.c:465> Unable
>>>>>> to get parent PHDR
>>>>>> [W] <elfsh_load_pht at pht.c:402> No PHT
>>>>>> [W] <elfsh_get_parent_segment at pht.c:465> Unable
>>>>>> to get parent PHDR
>>>>>> [W] <elfsh_load_pht at pht.c:402> No PHT
>>>>>> [W] <elfsh_get_parent_segment at pht.c:465> Unable
>>>>>> to get parent PHDR
>>>>>> [W] <elfsh_load_pht at pht.c:402> No PHT
>>>>>> [W] <elfsh_get_parent_segment at pht.c:465> Unable
>>>>>> to get parent PHDR
>>>>>> [W] <elfsh_load_pht at pht.c:402> No PHT
>>>>>> [W] <elfsh_get_parent_segment at pht.c:465> Unable
>>>>>> to get parent PHDR
>>>>>> [W] <elfsh_load_pht at pht.c:402> No PHT
>>>>>> [W] <elfsh_get_parent_segment at pht.c:465> Unable
>>>>>> to get parent PHDR
>>>>>> [W] <elfsh_load_pht at pht.c:402> No PHT
>>>>>> [W] <elfsh_get_parent_segment at pht.c:465> Unable
>>>>>> to get parent PHDR
>>>>>> [W] <elfsh_load_pht at pht.c:402> No PHT
>>>>>> [W] <elfsh_get_parent_segment at pht.c:465> Unable
>>>>>> to get parent PHDR
>>>>>> [W] <elfsh_load_pht at pht.c:402> No PHT
>>>>>> [W] <elfsh_get_pht at pht.c:538> Unable to
>>>>>> load PHT
>>>>>> [W] <elfsh_get_section_by_type_withlist at section.c:363>
>>>>>> Section not found ..
>>>>>> [W] <elfsh_get_section_by_type at section.c:410> Section
>>>>>> remained unfound
>>>>>> [W] <elfsh_get_reloc at reloc.c:279> Unable to
>>>>>> get reloc section
>>>>>> [W] <elfsh_get_section_by_name_withlist at section.c:264>
>>>>>> Section not found[.strtab]
>>>>>> [W] <elfsh_get_section_by_name at section.c:302> Section
>>>>>> not found[.interp]
>>>>>> [W] <elfsh_get_interp at interp.c:63> Unable
>>>>>> to get .interp by name
>>>>>> [W] <elfsh_get_section_by_name_withlist at section.c:264>
>>>>>> Section not found[.strtab]
>>>>>> [W] <elfsh_get_section_by_name at section.c:302> Section
>>>>>> not found[.interp]
>>>>>> [W] <elfsh_get_interp at interp.c:63> Unable
>>>>>> to get .interp by name
>>>>>> [W] <elfsh_get_section_by_name_withlist at section.c:264>
>>>>>> Section not found[.strtab]
>>>>>> [W] <elfsh_get_section_by_name at section.c:302> Section
>>>>>> not found[.debug_info]
>>>>>> [W] <elfsh_get_dwarf_info at dwarf.c:71> Unable to
>>>>>> find Dwarf info table
>>>>>> [W] <elfsh_get_section_by_name_withlist at section.c:264>
>>>>>> Section not found[.strtab]
>>>>>> [W] <elfsh_get_section_by_name at section.c:302> Section
>>>>>> not found[.debug_abbrev]
>>>>>> [W] <elfsh_get_dwarf_abbrev at dwarf.c:117> Unable to
>>>>>> find Dwarf abbrev table
>>>>>> [W] <elfsh_get_section_by_name_withlist at section.c:264>
>>>>>> Section not found[.strtab]
>>>>>> [W] <elfsh_get_section_by_name at section.c:302> Section
>>>>>> not found[.debug_aranges]
>>>>>> [W] <elfsh_get_dwarf_aranges at dwarf.c:163> Unable to
>>>>>> find Dwarf aranges table
>>>>>> [W] <elfsh_get_section_by_name_withlist at section.c:264>
>>>>>> Section not found[.strtab]
>>>>>> [W] <elfsh_get_section_by_name at section.c:302> Section
>>>>>> not found[.debug_frame]
>>>>>> [W] <elfsh_get_dwarf_frame at dwarf.c:209> Unable to
>>>>>> find Dwarf frame table
>>>>>> [W] <elfsh_get_section_by_name_withlist at section.c:264>
>>>>>> Section not found[.strtab]
>>>>>> [W] <elfsh_get_section_by_name at section.c:302> Section
>>>>>> not found[.debug_line]
>>>>>> [W] <elfsh_get_dwarf_line at dwarf.c:255> Unable to
>>>>>> find Dwarf line table
>>>>>> [W] <elfsh_get_section_by_name_withlist at section.c:264>
>>>>>> Section not found[.strtab]
>>>>>> [W] <elfsh_get_section_by_name at section.c:302> Section
>>>>>> not found[.debug_macinfo]
>>>>>> [W] <elfsh_get_dwarf_macinfo at dwarf.c:301> Unable to
>>>>>> find Dwarf abbrev table
>>>>>> [W] <elfsh_get_section_by_name_withlist at section.c:264>
>>>>>> Section not found[.strtab]
>>>>>> [W] <elfsh_get_section_by_name at section.c:302> Section
>>>>>> not found[.debug_pubnames]
>>>>>> [W] <elfsh_get_dwarf_pubnames at dwarf.c:347> Unable to
>>>>>> find Dwarf pubnames table
>>>>>> [W] <elfsh_get_section_by_name_withlist at section.c:264>
>>>>>> Section not found[.strtab]
>>>>>> [W] <elfsh_get_section_by_name at section.c:302> Section
>>>>>> not found[.debug_str]
>>>>>>
>>>>>>
>>>>>> On Tue, Sep 15, 2009 at 8:59 PM, Julien Vanegue <
>>>>>> julien.vanegue at gmail.com> wrote:
>>>>>>
>>>>>>> Etrace has never been tested on C++ and the reason why it doesnt work
>>>>>>> I think is because mangled symbols, for which we have no support.
>>>>>>>
>>>>>>> I guess supporting a C++ aware e2dbg/etrace would be a nice project
>>>>>>> but we have no resource for it by now!
>>>>>>>
>>>>>>> Julien
>>>>>>>
>>>>>>> On Tue, Sep 15, 2009 at 1:10 AM, Groleo Marius <groleo at gmail.com>wrote:
>>>>>>>
>>>>>>>> Hi,
>>>>>>>>
>>>>>>>> I've checked out the svn tree and run a simple test to see if etrace
>>>>>>>> can
>>>>>>>> trace a foo() function inside a c++ program. I tried to trace using
>>>>>>>> the _Z encoded function name but with no luck; does etrace support
>>>>>>>> tracing c++ symbols ?
>>>>>>>>
>>>>>>>> --
>>>>>>>> Regards, Groleo!
>>>>>>>>
>>>>>>>> _______________________________________________
>>>>>>>> eresi-dev mailing list
>>>>>>>> eresi-dev at lists.einherjar.de
>>>>>>>> http://lists.einherjar.de/mailman/listinfo/eresi-dev
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> eresi-dev mailing list
>>>>>>> eresi-dev at lists.einherjar.de
>>>>>>> http://lists.einherjar.de/mailman/listinfo/eresi-dev
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Regards, Groleo!
>>>>>>
>>>>>> _______________________________________________
>>>>>> eresi-dev mailing list
>>>>>> eresi-dev at lists.einherjar.de
>>>>>> http://lists.einherjar.de/mailman/listinfo/eresi-dev
>>>>>>
>>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> eresi-dev mailing list
>>>>> eresi-dev at lists.einherjar.de
>>>>> http://lists.einherjar.de/mailman/listinfo/eresi-dev
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Regards, Groleo!
>>>>
>>>
>>>
>>>
>>> --
>>> Regards, Groleo!
>>>
>>
>>
>>
>> --
>> Regards, Groleo!
>>
>> _______________________________________________
>> eresi-dev mailing list
>> eresi-dev at lists.einherjar.de
>> http://lists.einherjar.de/mailman/listinfo/eresi-dev
>>
>>
>
> _______________________________________________
> eresi-dev mailing list
> eresi-dev at lists.einherjar.de
> http://lists.einherjar.de/mailman/listinfo/eresi-dev
>
>
--
Regards, Groleo!
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