From: Andrea Autiero S143785 (andrea.autiero_at_studenti.polito.it)
Date: Thu Feb 12 2009 - 00:53:25 PST
now it works!!!
thank you so much!!
have a good day!!
Andrea
On Tue, 10 Feb 2009 11:04:32 -0800, "Paul H. Hargrove" <PHHargrove_at_lbl_dot_gov>
wrote:
> Try adding "-ldl" to the end of the gcc command line to link libdl. If
> you then get undefined references to pthread symbols, add "-lpthread" as
> well.
>
> -Paul
>
> Andrea Autiero S143785 wrote:
>> i've tryed it again but this is the answer:
>>
>> andrea@chisone:~/Desktop/materiale_tesi> gcc -o new_static matrix.c
>> -static
>> -L/usr/local/lib/ -lcr_run -u cr_run_link_me
>> /usr/local/lib//libcr_run.a(libcr_run_la-cr_run.o): In function
>> `cri_init':
>>
/home/andrea/Desktop/blcr-0.7.3/builddir/libcr/../../libcr/cr_libinit.c:148:
>> undefined reference to `dlopen'
>>
/home/andrea/Desktop/blcr-0.7.3/builddir/libcr/../../libcr/cr_libinit.c:151:
>> undefined reference to `dlsym'
>>
/home/andrea/Desktop/blcr-0.7.3/builddir/libcr/../../libcr/cr_libinit.c:152:
>> undefined reference to `dlclose'
>> collect2: ld returned 1 exit status
>>
>> is a problem of my system??i'm not very skilled on linux..
>>
>> thank you
>> Andrea
>>
>> On Mon, 09 Feb 2009 14:23:34 -0800, "Paul H. Hargrove"
>> <PHHargrove_at_lbl_dot_gov>
>> wrote:
>>
>>> Andrea,
>>>
>>> Please reread the "Cautionary Linker Notes" in the BLCR User's Guide.
>>>
>>> I beleive you need a "-u cr_link_me" argument when building your
>>> application "static_2" with libcr.a. Note also that "-u cr_run_link_me
>>> -lcr_run" may be better than "-u cr_link_me -lcr" because libcr_run.a
>>> contains only the code that the cr_run utility would insert into a
>>> dynamically linked executable, while libcr.a contains additional code
>>> that is unnecessary for this basic usage.
>>>
>>> Continue to let us know if you need assistance.
>>>
>>> -Paul
>>>
>>> Andrea Autiero S143785 wrote:
>>>
>>>> all right..
>>>> i've compiled blcr with the following options:
>>>>
>>>> sudo ../configure --host=ppc-linux --prefix=/ppc_blcr/builddir/
>>>>
>>>>
>>
--with-system-map=/home/andrea/Desktop/programmi_per_tesi/linux-2.6.18/System.map
>>
>>>> --with-linux=/home/andrea/Desktop/programmi_per_tesi/linux-2.6.18/
>>>> --enable-all-static --enable-static cross_signum=64
>>>> cross_stack_direction=-1
>>>>
>>>> make
>>>>
>>>> make install DESTDIR=/ppc_blcr/builddir
>>>>
>>>> then i've compiled my application:
>>>>
>>>> source /home/andrea/Desktop/programmi_per_tesi/eldk/eldk_init 4xx
>>>> ${CROSS_COMPILE}gcc -o static_2 matrix.c -static
>>>> -L/ppc/blcr_builddir/lib/
>>>> -lcr
>>>>
>>>> after that i've put file in ppc_blcr/builddir and my application in
the
>>>> filesystem of my virtual ppc on simics
>>>>
>>>> it start and i initalize the library (trying launch cr_checkpoint
>>>> --help
>>>> works!!)
>>>> then i launch
>>>>
>>>> ./static_2 &
>>>> ps
>>>> cr_checkpoint pid_of_static_2
>>>>
>>>> and i see on the screen:
>>>>
>>>> blcr: retry request on -CR_ENOSUPPORT
>>>> Checkpoint failed: support missing from application
>>>>
>>>> now what can i do??is it possible to make it work??
>>>> thank you
>>>> andrea autiero
>>>>
>>>> On Thu, 29 Jan 2009 10:57:56 -0800, "Paul H. Hargrove"
>>>> <PHHargrove_at_lbl_dot_gov>
>>>> wrote:
>>>>
>>>>
>>>>> Andrea,
>>>>>
>>>>> As Karthik says, you will at least need to configure BLCR
>>>>> --enable-static to ensure static libraries are built (by default only
>>>>> shared libs are built). However, that alone is not sufficient
because
>>>>>
>>>>> the "cr_run" utility only operates on dynamically linked executables.
>>>>>
>>>>> So, if "my_app" was compiled -static, "cr_run my_app" will not load
>>>>> the
>>>>>
>>
>>
>>>>> BLCR support into the application regardless of whether the static
>>>>> libraries have been built. For the case of a statically linked
>>>>> executable, one needs to link in BLCR support when the application is
>>>>> built, rather than at run time via "cr_run". Please see section "4.2
>>>>> Making an application checkpointable" in the BLCR Users Guide (in the
>>>>> doc/html directory of the BLCR distribution, or online at
>>>>> http://mantis.lbl.gov/blcr/doc/html/BLCR_Users_Guide.html ). You
>>>>> probably want option #2 in that section, and should read the
>>>>>
>> "Cautionary
>>
>>>>> linker notes" at the end of that section. If you still have
problems,
>>>>>
>>>>> please let us know and we'll try to help.
>>>>>
>>>>> -Paul
>>>>>
>>>>> Karthik Gopalakrishnan wrote:
>>>>>
>>>>>
>>>>>> Did you configure BLCR with "--enable-static"?
>>>>>>
>>>>>> On Thu, Jan 29, 2009 at 5:40 AM, Andrea Autiero S143785
>>>>>> <[email protected]> wrote:
>>>>>>
>>>>>>
>>>>>>
>>>>>>> goodmorning
>>>>>>> i'm an italian student trying to run your library in one embedded
>>>>>>>
>>>>>>>
>>>> system
>>>>
>>>>
>>>>>>> (by now is just virtual)
>>>>>>> i'm simuling one ebony board (ppc-4xx) whith 2.6.18 linux kernel on
>>>>>>>
>> it
>>
>>>>>>> i've cross-compiled the library and it seems to work on the target
>>>>>>> system,
>>>>>>> but i cant launch any application
>>>>>>> linked with the lib
>>>>>>> i must compile the executable with gcc -static and i think i need
>>>>>>> libcr.a
>>>>>>> how i could have it??could you help me?
>>>>>>> running cr_run myapp & and then cr_checpoint doesn't work
>>>>>>> it says to me "missing support from application"
>>>>>>> hope to have one answer and thnak you
>>>>>>> Andrea Autiero
>>>>>>> Politecnico di Torino
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>