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Error L6218E when switching to C++

Jon M

Hello everyone,

I have been searching the forums trying to find a solution to this but I have come up empty. There are plenty of posts regarding this error, but none (that I can find) in reference to switching to C++.

I have created a (rather large) code base that I have successfully implemented in C. It compiles and runs just fine. However, I would like to simplify some of the coding by making use of some of C++'s awesome features.

When I try to convert to C++, it no longer compiles and I get a lot of linker errors. I have set the compiler directive to --cpp and have renamed all of the files to .cpp (instead of .c).

I am using the TCP, and RTX libraries (if you cant tell from the errors).

The following is the output of the linker:

linking...
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol http_EnAuth (referred from http_cgi.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol tcp_NumSocks (referred from http_cgi.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol __debug__ (referred from at_tcp.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol __error__ (referred from at_tcp.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol tcp_2MSSTout (referred from at_tcp.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol tcp_ConRetry (referred from at_tcp.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol tcp_InitRetryTout (referred from at_tcp.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol tcp_MaxRetry (referred from at_tcp.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol tcp_RetryTout (referred from at_tcp.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol tcp_SynRetryTout (referred from at_tcp.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol udp_NumSocks (referred from at_udp.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol MPool_Size (referred from at_http.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol http_NumSess (referred from at_http.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol http_PortNum (referred from at_http.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol http_auth_dev (referred from at_http.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol http_auth_user (referred from at_http.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol tcp_DefTout (referred from at_http.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol dns_TabSize (referred from at_dns.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol netif_cfg (referred from at_dns.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol tick_rate (referred from at_dns.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol init_debug (referred from at_system.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol nlocalm (referred from at_system.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol mp_stk_size (referred from rt_task.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol mp_tcb_size (referred from rt_task.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol mp_tmr_size (referred from rt_task.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol os_error (referred from rt_task.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol os_fifo_size (referred from rt_task.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol os_idle_demon (referred from rt_task.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol os_maxtaskrun (referred from rt_task.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol os_stackinfo (referred from rt_task.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol os_trv (referred from rt_task.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol os_flags (referred from hal_cm3.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol arp_MaxRetry (referred from at_arp.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol arp_Resend (referred from at_arp.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol arp_TabSize (referred from at_arp.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol arp_TimeOut (referred from at_arp.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol os_rrobin (referred from rt_robin.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol igmp_T200ms (referred from at_igmp.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol igmp_TabSize (referred from at_igmp.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol igmp_table (referred from at_igmp.o).
.\Obj\SPARQ.axf: Error: L6218E: Undefined symbol os_tmr_call (referred from rt_timer.o).
.\Obj\SPARQ.axf: Not enough information to list image symbols.
.\Obj\SPARQ.axf: Not enough information to list the image map.
.\Obj\SPARQ.axf: Finished: 2 information, 0 warning and 41 error messages.

I know it is just something really stupid but I just cant figure it out. I would greatly appreciate any help/advice that you can give.

Oh, in case it matters, I am using the MCB1700 demo board with the LPC1768 chip.

Thanks in advance,

Jon

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