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