Re: [Condor-users] using -ldl with condor

[Alain Roy <roy@xxxxxxxxxxx>]

Dynamic linking is not allowed when checkpointing with Condor on Linux.

http://www.cs.wisc.edu/condor/manual/v6.7/1_4Current_Limitations.html

http://www.cs.wisc.edu/condor/manual/v6.7/2_4Road_map_Running.html#SECTION00341100000000000000

-alain

At 12:47 AM 5/30/2006 -0500, you wrote:
> Hi, all,
>
> I am trying to link my program with the condor library, condor library
> is used for process checkpointing. It works fine in the past 12 months.
>
> The current problem is we just added a new feature which invokes
> dlopen/dlsym/dlerror/dlclose functions and we have problem to link with
> the condor library. We got the following error msg:
>
> LINKING FOR CONDOR : /usr/bin/ld -L/home/users/lni/condor/lib -Bstatic
> --eh-frame-hdr -m elf_i386 -dynamic-linker /lib/ld-linux.so.2 -o speaker
> /home/users/lni/condor/lib/condor_rt0.o
> /usr/lib/gcc/i386-redhat-linux/3.4.3/../../../crti.o
> /usr/lib/gcc/i386-redhat-linux/3.4.3/crtbeginT.o
> -L/home/p2p/members/lni/lib/MPICH-OPeN//lib -L/home/users/lni/condor/lib
> -L/usr/lib/gcc/i386-redhat-linux/3.4.3
> -L/usr/lib/gcc/i386-redhat-linux/3.4.3
> -L/usr/lib/gcc/i386-redhat-linux/3.4.3/../../.. speaker.o stub.o -ldl
> -lmpich /home/users/lni/condor/lib/libcondorzsyscall.a
> /home/users/lni/condor/lib/libcondor_z.a
> /home/users/lni/condor/lib/libcomp_libstdc++.a
> /home/users/lni/condor/lib/libcomp_libgcc.a
> /home/users/lni/condor/lib/libcomp_libgcc_eh.a --as-needed
> --no-as-needed -lcondor_c -lcondor_nss_files -lcondor_nss_dns
> -lcondor_resolv -lcondor_c -lcondor_nss_files -lcondor_nss_dns
> -lcondor_resolv -lcondor_c /home/users/lni/condor/lib/libcomp_libgcc.a
> /home/users/lni/condor/lib/libcomp_libgcc_eh.a --as-needed
> --no-as-needed /usr/lib/gcc/i386-redhat-linux/3.4.3/crtend.o
> /usr/lib/gcc/i386-redhat-linux/3.4.3/../../../crtn.o
> stub.o(.text+0xa9): In function `glibc_original_puts':
> : warning: Using 'dlopen' in statically linked applications requires at
> runtime the shared libraries from the glibc version used for linking
> /home/users/lni/condor/lib/libcondorzsyscall.a(condor_file_agent.o)(.text+0x250): 
>
> In function `CondorFileAgent::open(char const*, int, int)':
> /home/condor/execute/dir_30581/userdir/src/condor_ckpt/condor_file_agent.C:99: 
>
> warning: the use of `tmpnam' is dangerous, better use `mkstemp'
> /usr/lib/gcc/i386-redhat-linux/3.4.3/../../../libdl.a(dlopen.o)(.text+0x10):
> In function `dlopen':
> : undefined reference to `__dlopen'
> /usr/lib/gcc/i386-redhat-linux/3.4.3/../../../libdl.a(dlclose.o)(.text+0x5):
> In function `dlclose':
> : undefined reference to `__dlclose'
> /usr/lib/gcc/i386-redhat-linux/3.4.3/../../../libdl.a(dlsym.o)(.text+0xd):
> In function `dlsym':
> : undefined reference to `__dlsym'
> /usr/lib/gcc/i386-redhat-linux/3.4.3/../../../libdl.a(dlerror.o)(.text+0x5):
> In function `dlerror':
> : undefined reference to `__dlerror'
> collect2: ld returned 1 exit status
> make: *** [speaker] Error 1
>
>
> I will be very appreciate for any suggestion/help on the above problem.
> Thanks!
>
>
>
> Cheers,
>
> Lei Ni
>
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