On 19 Mar 2007, at 21:32, Duncan Murdoch wrote:
> On 3/19/2007 5:23 PM, Ernest Turro wrote:
>> Hi,
>> I'm trying to register my native routines using R_registerRoutines
>> (...). I can compile the code, but the loader cannot resolve the
>> symbol:
>> undefined symbol:
>> _Z18R_registerRoutinesP8_DllInfoPK12R_CMethodDefPK15R_CallMethodDefS3
>> _S6 _
>> $ nm bgx.Rcheck/bgx/libs/bgx.so | grep R_registerRoutines
>> U
>> _Z18R_registerRoutinesP8_DllInfoPK12R_CMethodDefPK15R_CallMethodDefS3
>> _S6 _
>> Why does it have this funny name? If I look at libR.so, I get an
>> ordinary symbol name:
>
> That looks like C++ name mangling. Are you wrapping your
> declarations in
>
> extern "C" { }
>
> ?
Yeah, the routine is literally just:
extern "C"
void R_init_bgx(DllInfo *info) {
R_registerRoutines(info, cMethods,NULL,NULL,NULL);
}
with cMethods declared outside as a static const R_CMethodDef.
The two routines that I am registering are also wrapped in extern "C".
Ernest
>
> Duncan Murdoch
>
>
>> $ nm ~/lib64/R/lib/libR.so | grep R_registerRoutines
>> 0000000000032f80 T R_registerRoutines
>> I get normal symbol names for R functions not in Rinternals.h and
>> there is no problem there. For example:
>> nm bgx.Rcheck/bgx/libs/bgx.so | grep Rprintf
>> U Rprintf
>> $ nm ~/lib64/R/lib/libR.so | grep Rprintf
>> 0000000000129690 T Rprintf
>> The shared library dependencies are also fine:
>> $ ldd bgx.Rcheck/bgx/libs/bgx.so
>> libR.so => /home/et04/lib64/R/lib/libR.so
>> (0x0000002a95676000)
>> libstdc++.so.6 => /usr/lib64/libstdc++.so.6
>> (0x0000002a95a80000)
>> libm.so.6 => /lib64/tls/libm.so.6 (0x0000002a95c70000)
>> libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x0000002a95df7000)
>> libc.so.6 => /lib64/tls/libc.so.6 (0x0000002a95f02000)
>> libRblas.so => /home/et04/lib64/R/lib/libRblas.so
>> (0x0000002a96136000)
>> libg2c.so.0 => /usr/lib64/libg2c.so.0 (0x0000002a96262000)
>> libreadline.so.4 => /usr/lib64/libreadline.so.4
>> (0x0000002a96383000)
>> libncurses.so.5 => /usr/lib64/libncurses.so.5
>> (0x0000002a964bc000)
>> libdl.so.2 => /lib64/libdl.so.2 (0x0000002a96618000)
>> /lib64/ld-linux-x86-64.so.2 (0x000000552aaaa000)
>> My LD_LIBRARY_PATH environmental variable is set appropriately.
>> Any ideas?
>> Thanks,
>> E
>> ______________________________________________
>> R-devel@r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-devel
>
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