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      1  1.1  joerg // This file is dual licensed under the MIT and the University of Illinois Open
      2  1.1  joerg // Source Licenses. See LICENSE.TXT for details.
      3  1.1  joerg 
      4  1.1  joerg #include "../assembly.h"
      5  1.1  joerg 
      6  1.1  joerg // _chkstk routine
      7  1.1  joerg // This routine is windows specific
      8  1.1  joerg // http://msdn.microsoft.com/en-us/library/ms648426.aspx
      9  1.1  joerg 
     10  1.1  joerg #ifdef __i386__
     11  1.1  joerg 
     12  1.1  joerg .text
     13  1.1  joerg .balign 4
     14  1.1  joerg DEFINE_COMPILERRT_FUNCTION(__chkstk_ms)
     15  1.1  joerg         push   %ecx
     16  1.1  joerg         push   %eax
     17  1.1  joerg         cmp    $0x1000,%eax
     18  1.1  joerg         lea    12(%esp),%ecx
     19  1.1  joerg         jb     1f
     20  1.1  joerg 2:
     21  1.1  joerg         sub    $0x1000,%ecx
     22  1.1  joerg         test   %ecx,(%ecx)
     23  1.1  joerg         sub    $0x1000,%eax
     24  1.1  joerg         cmp    $0x1000,%eax
     25  1.1  joerg         ja     2b
     26  1.1  joerg 1:
     27  1.1  joerg         sub    %eax,%ecx
     28  1.1  joerg         test   %ecx,(%ecx)
     29  1.1  joerg         pop    %eax
     30  1.1  joerg         pop    %ecx
     31  1.1  joerg         ret
     32  1.1  joerg END_COMPILERRT_FUNCTION(__chkstk_ms)
     33  1.1  joerg 
     34  1.1  joerg #endif // __i386__
     35