1  /* Used by the elf ifunc tests.  */
       2  #ifndef ELF_IFUNC_SEL_H
       3  #define ELF_IFUNC_SEL_H 1
       4  
       5  extern int global;
       6  
       7  static inline __attribute__ ((always_inline)) void *
       8  inhibit_stack_protector
       9  ifunc_sel (int (*f1) (void), int (*f2) (void), int (*f3) (void))
      10  {
      11    register void *ret __asm__ ("r3");
      12    __asm__ ("mflr 12\n\t"
      13  	   "bcl 20,31,1f\n"
      14  	   "1:\tmflr 11\n\t"
      15  	   "mtlr 12\n\t"
      16  	   "addis 12,11,global-1b@ha\n\t"
      17  	   "lwz 12,global-1b@l(12)\n\t"
      18  	   "addis %0,11,%2-1b@ha\n\t"
      19  	   "addi %0,%0,%2-1b@l\n\t"
      20  	   "cmpwi 12,1\n\t"
      21  	   "beq 2f\n\t"
      22  	   "addis %0,11,%3-1b@ha\n\t"
      23  	   "addi %0,%0,%3-1b@l\n\t"
      24  	   "cmpwi 12,-1\n\t"
      25  	   "beq 2f\n\t"
      26  	   "addis %0,11,%4-1b@ha\n\t"
      27  	   "addi %0,%0,%4-1b@l\n\t"
      28  	   "2:"
      29  	   : "=r" (ret)
      30  	   : "i" (&global), "i" (f1), "i" (f2), "i" (f3)
      31  	   : "11", "12", "cr0");
      32    return ret;
      33  }
      34  
      35  static inline __attribute__ ((always_inline)) void *
      36  inhibit_stack_protector
      37  ifunc_one (int (*f1) (void))
      38  {
      39    register void *ret __asm__ ("r3");
      40    __asm__ ("mflr 12\n\t"
      41  	   "bcl 20,31,1f\n"
      42  	   "1:\tmflr %0\n\t"
      43  	   "mtlr 12\n\t"
      44  	   "addis %0,%0,%1-1b@ha\n\t"
      45  	   "addi %0,%0,%1-1b@l"
      46  	   : "=r" (ret)
      47  	   : "i" (f1)
      48  	   : "12");
      49    return ret;
      50  }
      51  #endif