mirror of
git://sourceware.org/git/glibc.git
synced 2024-12-09 04:11:27 +08:00
47 lines
1011 B
C
47 lines
1011 B
C
|
/* 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
|