File: switch_mips_unix.h

package info (click to toggle)
python-greenlet 0.3.1-2.5
  • links: PTS, VCS
  • area: main
  • in suites: wheezy
  • size: 392 kB
  • sloc: ansic: 1,506; python: 666; makefile: 14
file content (56 lines) | stat: -rw-r--r-- 1,177 bytes parent folder | download | duplicates (3)
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
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
/*
 * this is the internal transfer function.
 *
 * HISTORY
 * 05-Jan-08 Thiemo Seufer  <ths@debian.org>
 *      Ported from ppc.
 */

#define STACK_REFPLUS 1

#ifdef SLP_EVAL

#define STACK_MAGIC 0

#ifdef __mips64
#define REGS_TO_SAVE "$16", "$17", "$18", "$19", "$20", "$21", "$22", \
       "$23", "$28", "$30"
#else
#define REGS_TO_SAVE "$16", "$17", "$18", "$19", "$20", "$21", "$22", \
       "$23", "$30"
#endif
static int
slp_switch(void)
{
    register int *stackref, stsizediff;
    __asm__ __volatile__ ("" : : : REGS_TO_SAVE);
    __asm__ ("move %0, $29" : "=r" (stackref) : );
    {
        SLP_SAVE_STATE(stackref, stsizediff);
        __asm__ __volatile__ (
#ifdef __mips64
            "daddu $29, %0\n"
#else
            "addu $29, %0\n"
#endif
            : /* no outputs */
            : "r" (stsizediff)
            );
        SLP_RESTORE_STATE();
    }
    __asm__ __volatile__ ("" : : : REGS_TO_SAVE);
    return 0;
}

#endif

/*
 * further self-processing support
 */

/* 
 * if you want to add self-inspection tools, place them
 * here. See the x86_msvc for the necessary defines.
 * These features are highly experimental und not
 * essential yet.
 */