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75 lines
1.8 KiB
75 lines
1.8 KiB
/***
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*tlssup.c - Thread Local Storage run-time support module
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*
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* Copyright (c) 1993-1994, Microsoft Corporation. All rights reserved.
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*
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*Purpose:
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*
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*Revision History:
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* 03-19-93 SKS Original Version from Chuck Mitchell
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* 11-16-93 GJF Enclosed in #ifdef _MSC_VER
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* 02-17-94 SKS Add "const" to declaration of _tls_used
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* to work around problems with MIPS compiler.
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* Also added a canonical file header comment.
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* 09-01-94 SKS Change include file from <nt.h> to <windows.h>
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*
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****/
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#ifdef _MSC_VER
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#include <windows.h>
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/* Thread Local Storage index for this .EXE or .DLL */
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ULONG _tls_index = 0;
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/* Special symbols to mark start and end of Thread Local Storage area.
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* By convention, we initialize each with a pointer to it's own address.
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*/
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#pragma data_seg(".tls")
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PVOID _tls_start = &_tls_start;
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#pragma data_seg(".tls$ZZZ")
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PVOID _tls_end = &_tls_end;
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/* Start and end sections for Threadl Local Storage CallBack Array.
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* Actual array is constructed using .CRT$XLA, .CRT$XLC, .CRT$XLL,
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* .CRT$XLU, .CRT$XLZ similar to the way global
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* static initializers are done for C++.
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*/
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#pragma data_seg(".CRT$XLA")
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PIMAGE_TLS_CALLBACK __xl_a = 0;
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#pragma data_seg(".CRT$XLZ")
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PIMAGE_TLS_CALLBACK __xl_z = 0;
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#pragma data_seg(".rdata$T")
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#ifndef IMAGE_SCN_SCALE_INDEX
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#define IMAGE_SCN_SCALE_INDEX 0x00000001 // Tls index is scaled
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#endif
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const IMAGE_TLS_DIRECTORY _tls_used =
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{
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(ULONG) &_tls_start, // start of tls data
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(ULONG) &_tls_end, // end of tls data
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&_tls_index, // address of tls_index
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&__xl_a, // pointer to call back array
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(ULONG) 0, // size of tls zero fill
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#if defined(_M_MRX000)
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(ULONG)IMAGE_SCN_SCALE_INDEX // characteristics
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#else
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(ULONG) 0 // characteristics
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#endif
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};
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#endif /* _MSC_VER */
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