Re: Compiling Protocol-Plugin c++ (MinGW)

I've uploaded the source to github: https://github.com/farcdev/spinp

The build in mingw will need a static library of libcurl with ssl/tls 
support, but it is pretty easy to build one.

I've build it with:

./configure --prefix=/mingw --enable-static=yes 
--enable-shared=no--disable-ldap--with-winssl && make && make install

I hope you can reproduce the issue. Feel free to ask anything. :)

Am 20.10.2016 um 22:53 schrieb Eion Robb:
> SIGINT isn't really a useful thing to backtrace on, the Pidgin.rpt in 
> %appdata%\.purple might be more helpful
>
> I'm also surprised to see the lack of plugin_load and plugin_unload 
> functions.  Maybe once you have your actual source online we can give 
> comment to what's going on. :)
>
> You can also look at some other c++ based prpls to see if there's 
> anything there that might help:
> http://altrepo.eu/git/purple-line/blob/master/libpurple/pluginmain.cpp
> https://github.com/EionRobb/skype4pidgin/blob/master/libskypekit/libskypekit.h#L189
> https://github.com/EionRobb/pidgin-opensteamworks/blob/master/libsteamworks.h#L28
>
> (although the LINE one is probably better to base things on as they 
> actually know C++ and i was just muddling my way through with 
> skypekit/opensteamworks :D )
>
> On 21 October 2016 at 09:25, Farc <[email protected] 
> <mailto:[email protected]>> wrote:
>
>     Hey,
>
>     I didn't uploaded the source of my plugin yet. I have to clean up
>     the code first (some password-stuff and so on), I might be able to
>     do it tomorrow. But I can show you the reduced cpp I've written
>     which causes excactly the same issue. You can find it here:
>     http://pastebin.com/WbNy1nMr
>     When I compile it with gcc in c-mode it works fine, but with g++
>     it causes the described issue.
>
>     Here is the backtrace after the first 2 "warnings":
>     (22:18:07) wpurple: wpurple_cleanup
>     (22:18:08) winpidgin: winpidgin_cleanup
>     warning: Invalid parameter passed to C runtime function.
>
>     warning: Invalid parameter passed to C runtime function.
>
>     [New Thread 2620.0xf78]
>
>     Program received signal SIGINT, Interrupt.
>     [Switching to Thread 2620.0xf78]
>     0x74fa7577 in KERNEL32!CtrlRoutine () from
>     C:\Windows\syswow64\kernel32.dll
>     (gdb) bt full
>     #0  0x74fa7577 in KERNEL32!CtrlRoutine ()
>        from C:\Windows\syswow64\kernel32.dll
>     No symbol table info available.
>     #1  0x5f9fd79a in ?? ()
>     No symbol table info available.
>     #2  0x00000000 in ?? ()
>     No symbol table info available.
>     (gdb)
>
>     After the next 2 "warnings" it ends with code 03.
>
>     Best regards,
>     Farc
>
>
>
>     Am 20.10.2016 um 21:57 schrieb Eion Robb:
>>     Hi there,
>>
>>     I've seen something similar happen with the LINE plugin, which is
>>     also written in C++.  It looked like the C++ engine was freeing
>>     the memory when the plugin_unload() function was called and the
>>     main LINE object destructor was called.
>>
>>     Is your code online somewhere that I can have a play with and
>>     attach a few debuggers to?  Do you also have some backtraces of
>>     where it's crashing?  It'd be great to see if its dying in the
>>     same place.
>>
>>     Cheers,
>>     Eion
>>
>>     On 21 October 2016 at 07:21, Farc <[email protected]
>>     <mailto:[email protected]>> wrote:
>>
>>         Hello,
>>
>>         I'm currently developing a protocol-plugin for plugin with
>>         c++. But I'm struggling with MinGW under Windows 7 (There are
>>         no problems on Debian 8 and g++). Compiling works fine and it
>>         runs without crashes, but it crashes pidgin when it's exiting.
>>
>>         These are the last lines of output from GDB:
>>
>>         (01:49:33) wpurple: wpurple_cleanup
>>         (01:49:33) winpidgin: winpidgin_cleanup
>>         warning: Invalid parameter passed to C runtime function.
>>
>>         warning: Invalid parameter passed to C runtime function.
>>
>>         warning: Invalid parameter passed to C runtime function.
>>
>>         warning: Invalid parameter passed to C runtime function.
>>
>>         Without GDB Windows 7(64bit) presents an error message.
>>
>>         I thought it might have something to do with my code. So I
>>         reduced my plugin to really simple block of code which is
>>         just needed by pidgin to be recognized as a protocol plugin.
>>         And the same happens when exiting. But if I compile it in
>>         c-mode (I've tried alot of stuff...) pidgin exits normal
>>         without crashing.
>>
>>         Hopefully someone can help me. Thx
>>
>>         _______________________________________________
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>>         <https://pidgin.im/cgi-bin/mailman/listinfo/devel>
>>
>>
>
>

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