libjtag_atlantic.so (under linux)

[Altera_Forum]

Hello all, 

 I came to know about "jtag_atlantic" Altera Mega-IP thanks to this forum. There are several threads already discussing about the IP and examples. It seems very handy way to sink/source data from FPGA or from PC.  I would like to create software for "jtag_atlantic" under Linux. I found libjtag_atlantic.so under Altera Quartus directory so I thought it would be easy thing to do.  However, when I tried to compile my test software, I got unexpected errors: % gcc -o test_link test_link.c -L(ALATERA/LIB_DIR) -ljtag_atlantic test_link.c:(.text+0x27): undefined reference to `jtagatlantic_open' test_link.c:(.text+0x6f): undefined reference to `jtagatlantic_close' test_link.c:(.text+0x8c): undefined reference to `jtagatlantic_get_error'  //  The libjtag_atlantic.so contains the above undefined functions: % nm (ALATERA/LIB_DIR/libjtag_atlantic.so ... 0000000000003024 T _Z17jtagatlantic_openPKciiS0_ 0000000000001e80 T _Z17jtagatlantic_readP12JTAGATLANTICPcj 000000000000206a T _Z18jtagatlantic_closeP12JTAGATLANTIC 0000000000001d36 T _Z18jtagatlantic_flushP12JTAGATLANTIC 0000000000001fa4 T _Z18jtagatlantic_writeP12JTAGATLANTICPKcj 00000000000017b8 T _Z21jtagatlantic_get_infoP12JTAGATLANTICPPKcPiS4_ 0000000000001780 T _Z22jtagatlantic_get_errorPPKc 0000000000001cda T _Z22jtagatlantic_wait_openP12JTAGATLANTIC 00000000000017c4 T _Z26jtagatlantic_cable_warningP12JTAGATLANTIC 00000000000017e8 T _Z28jtagatlantic_bytes_availableP12JTAGATLANTIC ...  //  Does anybody use jtag_atlantic under Linux environment? All examples I found are provided for PC (CygWin) environment and examples are using libjtag_atlantic.a, which is not compatible with Linux platform.  As I'm not familiar with Linux and Software development, any suggestions, any comments are greatly appreciated.  Aki-

[Altera_Forum]

I'm not using Linux, but similar to the respective Windows libraries, the libjtag_atlantic function names are apparently "decorated" names (including a coding for function return and argument types, as required for function overloading in C++). You either need to interface the library from C++ code, or write a respective import library. 

 It's a general C versus C++ problem and not particularly related to libjtag_atlantic.

[Altera_Forum]

Hi FvM, 

 Thank you for your reply. I consulted a software guru in my office and he pointed out the problem (basically the same thing you suggested). The API routines are provided in C++ (names are mangled) and it uses an explicit namespace, "JTAGATLANTIC". He showed me how to fix.  I will provide the solution to other Altera users once I confirm all correct operations.  Thanks, Aki-

[Altera_Forum]

Can you share the solution ? Maybe with a small code sample ?

[Altera_Forum]

Hi HardFault, 

 Sorry to disappoint you. I could compile my test program but I couldn't get it to work with my simple test design. It is unfortunate that Altera didn't make this software interface available to Altera FPGA users. If I find a way to make this interface to work or some other similar interface becomes usable, I will post to the forum.  Sorry! Aki-