Hi,

I am trying to use sofia-sip on symbian. I am using
S60_3rd_Ed_SDK_FP2_Beta_b and compiling using the WINSCW compiler for
the emulator.

The project compiles correctly but when I am trying to run
test_nua.exe, I have some issues.

The test suite programs use symbols exported by the libsofia-sip-ua
DLL. The test suite .mmp files contains "MACRO IN_LIBSOFIA_SIP_UA". It
controls whether SOFIAPUBVAR extends to __declspec(dllimport) or
__declspec(dllexport). The .dll should use dllexport to export a symbol
and the .exe should use dllimport to use a symbol from the .dll.

However both .mmp file for the dll and .mmp file for the test suite
define the "MACRO IN_LIBSOFIA_SIP_UA". So it uses
"__declspec(dllexport)" both in the .dll and in the .exe. IHMO this is
a bug in the .mmp files.

The symptom is that the application crashes when it try to access to
the "nua_log" variable. This variable is exported by the
libsofia-sip-ua.dll and used by test_nua.exe.

I tried to fix it but then test_nua.exe just crashes as soon as it gets
started. My breakpoint in the main() function is not triggered: it
crashes before the main() function. I reduced this problem to a small
program (43 lines), and reported it there:

http://discussion.forum.nokia.com/forum/showthread.php?t=127457

In short, when we access a variable exported from the dll and use it to
initialize a local variable, it crashes. This pattern does not work, I
don't know why.

But this pattern is used a lot in sofia-sip. I don't know whether
changing this pattern is the right thing to do. Maybe it is a bug in
the compiler, epoc, or whatever and we should fix the real bug instead.
(?)

For example, see:
./libsofia-sip-ua/nua/test_nua_params.c line 59 that uses NUTAG_ANY,
which is a macro expanding to symbol nutag_any from the dll.

Regards,

Alban


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