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77799d9d AM |
1 | /* Machine-dependent ELF indirect relocation inline functions. |
2 | PowerPC64 version. | |
688903eb | 3 | Copyright (C) 2009-2018 Free Software Foundation, Inc. |
77799d9d AM |
4 | This file is part of the GNU C Library. |
5 | ||
6 | The GNU C Library is free software; you can redistribute it and/or | |
7 | modify it under the terms of the GNU Lesser General Public | |
8 | License as published by the Free Software Foundation; either | |
9 | version 2.1 of the License, or (at your option) any later version. | |
10 | ||
11 | The GNU C Library is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | Lesser General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 PE |
17 | License along with the GNU C Library; if not, see |
18 | <http://www.gnu.org/licenses/>. */ | |
77799d9d AM |
19 | |
20 | #ifndef _DL_IREL_H | |
21 | #define _DL_IREL_H | |
22 | ||
23 | #include <stdio.h> | |
24 | #include <unistd.h> | |
873a772e AJ |
25 | #include <ldsodefs.h> |
26 | #include <dl-machine.h> | |
77799d9d AM |
27 | |
28 | #define ELF_MACHINE_IRELA 1 | |
29 | ||
42675c6f DM |
30 | static inline Elf64_Addr |
31 | __attribute ((always_inline)) | |
32 | elf_ifunc_invoke (Elf64_Addr addr) | |
33 | { | |
a386f1cc | 34 | return ((Elf64_Addr (*) (unsigned long int)) (addr)) (GLRO(dl_hwcap)); |
42675c6f DM |
35 | } |
36 | ||
77799d9d AM |
37 | static inline void |
38 | __attribute ((always_inline)) | |
39 | elf_irela (const Elf64_Rela *reloc) | |
40 | { | |
41 | unsigned int r_type = ELF64_R_TYPE (reloc->r_info); | |
42 | ||
a1ffb40e | 43 | if (__glibc_likely (r_type == R_PPC64_IRELATIVE)) |
77799d9d AM |
44 | { |
45 | Elf64_Addr *const reloc_addr = (void *) reloc->r_offset; | |
42675c6f | 46 | Elf64_Addr value = elf_ifunc_invoke(reloc->r_addend); |
77799d9d AM |
47 | *reloc_addr = value; |
48 | } | |
a1ffb40e | 49 | else if (__glibc_likely (r_type == R_PPC64_JMP_IREL)) |
77799d9d AM |
50 | { |
51 | Elf64_Addr *const reloc_addr = (void *) reloc->r_offset; | |
42675c6f | 52 | Elf64_Addr value = elf_ifunc_invoke(reloc->r_addend); |
696caf1d | 53 | #if _CALL_ELF != 2 |
77799d9d | 54 | *(Elf64_FuncDesc *) reloc_addr = *(Elf64_FuncDesc *) value; |
696caf1d UW |
55 | #else |
56 | *reloc_addr = value; | |
57 | #endif | |
77799d9d AM |
58 | } |
59 | else | |
60 | __libc_fatal ("unexpected reloc type in static binary"); | |
61 | } | |
62 | ||
63 | #endif /* dl-irel.h */ |