"Bronek Kozicki" wrote:
What I understand (it's quite blury picture right now) is that if you define one of: a) int _tls_index or b) _declspec(thread) some_variable
any of them will result in two things: * section .tls will be created * symbol __tls_used will be created and put in .tls section
The automatic creation of _tls_used does not happen in my tests. To be more precise, I was considering Matt Pietrek's 'Under The Hood' article from 1999 stating: "...These functions are prototyped as IMAGE_TLS_CALLBACK functions, which are defined in WINNT.H. Not coincidentally, the TLS initialization callbacks happen to look just like a DllMain function. For what it's worth, when using __declspec(thread) variables, Visual C++ emits data that causes this routine to be invoked. However, no actual callbacks are currently defined by the runtime library, so the array of function pointers is a single NULL entry." However, in my case that does not seem to be a true for a static library (in contrast to implicitly linked DLL) created with Visual Studio 2003 (VC++ 71.), all in Debug mode. I looked at: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vccore/html... but it does not mention any specific issues with static libraries. Tony