mingw compile issues
lucas.fisher at gmail.com
Mon Nov 7 21:28:52 EST 2011
I'm compiling im.pidgin head on Windows roughly following
http://developer.pidgin.im/ticket/14678. I was able to get this
compiling and sort out all the dependencies. However, I found that
Pidgin would crash when you quit. I traced this to WinMain in
pidgin/win32/winpidgin.c. It crashes because when WinMain returns the
stack pointer is not pointing to the return address, but other data on
the stack. It almost looks like the compiler is messing up and
generating the wrong instructions. When I turn off optimizations this
problem goes away.
Has anyone else seen this behavior?
mov [esp+0CACh+var_CAC], edi
mov [esp+0CACh+var_CA4], ebp
mov [esp+0CACh+var_CA8], esi
mov eax, [esp+0CACh+hInstance]
mov [esp+0CACh+var_CAC], eax
call ds:dword_408024 # is the calling convention correct here?
sub esp, 0Ch # this instruction misaligns the stack pointer
add esp, 0CACh
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