Problems with dynamic linking in tela

[Mikael Hedin <mikael.hedin@irf.se>]

Hi,

I have tried to compile and link the following file into tela.  The
--shared version works if I remove the line with "cout <<".  Do you
have any advise on what can be the problem?  Tela uses dlopen() to
load the file.

TIA,

Micce

~/tmp$cat myfn.ct 
// Our first C-tela example

[] = myfn(x)
/* myfn(x) checks that x is a positive scalar and outputs it.
   Error codes:
   1: x is not a positive scalar */
{
    if (!x.IsScalar()) return 1;
    switch (x.kind()) {
        case Kint:
            if (x.IntValue() <= 0) return 1;
            break;
        case Kreal:
            if (x.RealValue() <= 0) return 1;
            break;
        case Kcomplex:
            return 1;
        default:
            return 1;
    }
    cout << "myfn: x = " << x << '\n';
    return 0;
}

~/tmp$telakka --shared  myfn.ct 
~/tmp$telakka -c myfn.ct 
~/tmp$ls -l
totalt 12k
-rw-rw-r--    1 micce    micce         529 aug  2 16:08 myfn.ct
-rw-rw-r--    1 micce    micce        1.6k aug  2 16:09 myfn.o
-rwxrwxr-x    1 micce    micce        3.2k aug  2 16:08 myfn.so*
~/tmp$tela
This tela is a tensor language, Version 1.32.
Type  ?help  for help.
->TAB completion works; try docview() and source("demo")
>link("myfn.o")
./myfn.o: ELF file's phentsize not the expected size
Warning from C-function 'link':
  Cannot link-load file.
>link("myfn.so")
./myfn.so: undefined symbol: __ls__FR7ostreamRC7Tobject
Warning from C-function 'link':
  Cannot link-load file.
>71 instructions, 0 arithmetic ops.
0.000788889 MIPS, 0 MFLOPS.
~/tmp$ 

-- 
Mikael Hedin, MSc                   +46 (0)980 79176
Swedish Institute of Space Physics  +46 (0)8 344979 (home)
Box 812, S-981 28 KIRUNA, Sweden    +46 (0)70 5891533 (mobile)
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