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
|
/* Used by the elf ifunc tests. */
#ifndef ELF_IFUNC_SEL_H
#define ELF_IFUNC_SEL_H 1
extern int global;
static inline void *
ifunc_sel (int (*f1) (void), int (*f2) (void), int (*f3) (void))
{
register void *ret __asm__ ("r3");
__asm__ ("mflr 12\n\t"
"bcl 20,31,1f\n"
"1:\tmflr 11\n\t"
"mtlr 12\n\t"
"addis 12,11,global-1b@ha\n\t"
"lwz 12,global-1b@l(12)\n\t"
"addis %0,11,%2-1b@ha\n\t"
"addi %0,%0,%2-1b@l\n\t"
"cmpwi 12,1\n\t"
"beqlr\n\t"
"addis %0,11,%3-1b@ha\n\t"
"addi %0,%0,%3-1b@l\n\t"
"cmpwi 12,-1\n\t"
"beqlr\n\t"
"addis %0,11,%4-1b@ha\n\t"
"addi %0,%0,%4-1b@l"
: "=r" (ret)
: "X" (&global), "X" (f1), "X" (f2), "X" (f3));
return ret;
}
static inline void *
ifunc_one (int (*f1) (void))
{
register void *ret __asm__ ("r3");
__asm__ ("mflr 12\n\t"
"bcl 20,31,1f\n"
"1:\tmflr %0\n\t"
"mtlr 12\n\t"
"addis %0,%0,%1-1b@ha\n\t"
"addi %0,%0,%1-1b@l"
: "=r" (ret)
: "X" (f1));
return ret;
}
#endif
|
