File: chkstk.S

package info (click to toggle)
rustc 1.34.2%2Bdfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 190,620 kB
  • sloc: xml: 133,832; ansic: 22,822; sh: 14,012; asm: 7,935; python: 5,292; cpp: 4,715; awk: 3,426; makefile: 2,601; yacc: 1,618; lex: 350; ruby: 68; pascal: 46
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__