Hello everybody,
I have compiled the log4cxx and built the shared library on Solaris 8 platform.
While I link this library dynamically to build my executable, I see the following error:
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Undefined first referenced
symbol in file
long __rwstd::InterlockedDecrement(long*) /home/hatinm/projects/c++_logging/log4cxx-0.9.7/lib/liblogcxx.so
long __rwstd::InterlockedIncrement(long*) /home/hatinm/projects/c++_logging/log4cxx-0.9.7/lib/liblogcxx.so
long __rwstd::InterlockedExchange(long*,long) /home/hatinm/projects/c++_logging/log4cxx-0.9.7/lib/liblogcxx.so
ld: fatal: Symbol referencing errors. No output written
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The following is the output of nm -o -C liblogcxx.so | grep Interlocked
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[14131] |000000000000|000000000000|NOTY |GLOB |0 |UNDEF |long __rwstd::InterlockedDecrement(long*)
[__1cH__rwstdUInterlockedDecrement6Fpl_l_]
[13326] |000000000000|000000000000|NOTY |GLOB |0 |UNDEF |long __rwstd::InterlockedExchange(long*,long)
[__1cH__rwstdTInterlockedExchange6Fpll_l_]
[15089] |000000000000|000000000000|NOTY |GLOB |0 |UNDEF |long __rwstd::InterlockedIncrement(long*)
[__1cH__rwstdUInterlockedIncrement6Fpl_l_]
[14430] |000007275110|000000000140|FUNC |GLOB |0 |11 |long log4cxx::helpers::Thread::InterlockedDecrement(volatile long*)
[__1cHlog4cxxHhelpersGThreadUInterlockedDecrement6Fpol_l_]
[14672] |000007274730|000000000140|FUNC |GLOB |0 |11 |long log4cxx::helpers::Thread::InterlockedIncrement(volatile long*)
[__1cHlog4cxxHhelpersGThreadUInterlockedIncrement6Fpol_l_]
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1) How is the scope for the undefined symbols being resolved to __rwstd:: ??
2) Another thing I notice is that these functions (Interlocked*) occur only in 3 source files: condition.cpp, thread.cpp, objectimpl.cpp. The references in the last file objectimpl.cpp are to the functions Thread::Interlocked*. Hence, these are being resolved. In the other 2 files, condition.cpp thread.cpp, whatever references exist (barring the definition of the member version of Thread class), they should've been EXCLUDED out by the pre-processor (controlled by pre-processor macros like HAVE_MS_THREAD) !!! I have duly defined the macro HAVE_PTHREAD.
I would greatly appreciate your suggestions/ ideas on how to resolve this.
Regards,
Hatinder
