| /* Machine-dependent ELF indirect relocation inline functions. |
| SPARC 64-bit version. |
| Copyright (C) 2010-2018 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #ifndef _DL_IREL_H |
| #define _DL_IREL_H |
| |
| #include <stdio.h> |
| #include <unistd.h> |
| #include <dl-plt.h> |
| #include <ldsodefs.h> |
| |
| #define ELF_MACHINE_IRELA 1 |
| |
| static inline Elf64_Addr |
| __attribute ((always_inline)) |
| elf_ifunc_invoke (Elf64_Addr addr) |
| { |
| return ((Elf64_Addr (*) (int)) (addr)) (GLRO(dl_hwcap)); |
| } |
| |
| static inline void |
| __attribute ((always_inline)) |
| elf_irela (const Elf64_Rela *reloc) |
| { |
| unsigned int r_type = (reloc->r_info & 0xff); |
| |
| if (__glibc_likely (r_type == R_SPARC_IRELATIVE)) |
| { |
| Elf64_Addr *const reloc_addr = (void *) reloc->r_offset; |
| Elf64_Addr value = elf_ifunc_invoke(reloc->r_addend); |
| *reloc_addr = value; |
| } |
| else if (__glibc_likely (r_type == R_SPARC_JMP_IREL)) |
| { |
| Elf64_Addr *const reloc_addr = (void *) reloc->r_offset; |
| Elf64_Addr value = elf_ifunc_invoke(reloc->r_addend); |
| struct link_map map = { .l_addr = 0 }; |
| |
| /* 'high' is always zero, for large PLT entries the linker |
| emits an R_SPARC_IRELATIVE. */ |
| sparc64_fixup_plt (&map, reloc, reloc_addr, value, 0, 0); |
| } |
| else if (r_type == R_SPARC_NONE) |
| ; |
| else |
| __libc_fatal ("unexpected reloc type in static binary"); |
| } |
| |
| #endif /* dl-irel.h */ |