File: chkstk.S

package info (click to toggle)
llvm-toolchain-3.9 1%3A3.9.1-9
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 441,144 kB
  • ctags: 428,836
  • sloc: cpp: 2,546,577; ansic: 538,318; asm: 119,677; objc: 103,316; python: 102,148; sh: 27,847; pascal: 5,626; ml: 5,510; perl: 5,293; lisp: 4,801; makefile: 2,177; xml: 686; cs: 362; php: 212; csh: 117
file content (34 lines) | stat: -rw-r--r-- 753 bytes parent folder | download | duplicates (11)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.

#include "../assembly.h"

// _chkstk routine
// This routine is windows specific
// http://msdn.microsoft.com/en-us/library/ms648426.aspx

#ifdef __i386__

.text
.balign 4
DEFINE_COMPILERRT_FUNCTION(__chkstk_ms)
        push   %ecx
        push   %eax
        cmp    $0x1000,%eax
        lea    12(%esp),%ecx
        jb     1f
2:
        sub    $0x1000,%ecx
        test   %ecx,(%ecx)
        sub    $0x1000,%eax
        cmp    $0x1000,%eax
        ja     2b
1:
        sub    %eax,%ecx
        test   %ecx,(%ecx)
        pop    %eax
        pop    %ecx
        ret
END_COMPILERRT_FUNCTION(__chkstk_ms)

#endif // __i386__