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| 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 |
| 52 |
Warning: This file is not a C or C++ file. It does not have highlighting.