mirror of git://sourceware.org/git/glibc.git
52 lines
1.5 KiB
C
52 lines
1.5 KiB
C
/* Machine-dependent ELF indirect relocation inline functions.
|
|
x86-64 version.
|
|
Copyright (C) 2009-2021 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
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#ifndef _DL_IREL_H
|
|
#define _DL_IREL_H
|
|
|
|
#include <stdio.h>
|
|
#include <unistd.h>
|
|
|
|
#define ELF_MACHINE_IRELA 1
|
|
|
|
static inline ElfW(Addr)
|
|
__attribute ((always_inline))
|
|
elf_ifunc_invoke (ElfW(Addr) addr)
|
|
{
|
|
return ((ElfW(Addr) (*) (void)) (addr)) ();
|
|
}
|
|
|
|
static inline void
|
|
__attribute ((always_inline))
|
|
elf_irela (const ElfW(Rela) *reloc)
|
|
{
|
|
ElfW(Addr) *const reloc_addr = (void *) reloc->r_offset;
|
|
const unsigned long int r_type = ELFW(R_TYPE) (reloc->r_info);
|
|
|
|
if (__glibc_likely (r_type == R_X86_64_IRELATIVE))
|
|
{
|
|
ElfW(Addr) value = elf_ifunc_invoke(reloc->r_addend);
|
|
*reloc_addr = value;
|
|
}
|
|
else
|
|
__libc_fatal ("Unexpected reloc type in static binary.\n");
|
|
}
|
|
|
|
#endif /* dl-irel.h */
|