mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-22 13:00:06 +00:00
61 lines
1.8 KiB
C
61 lines
1.8 KiB
C
/* Machine-dependent ELF indirect relocation inline functions.
|
|
AArch64 version.
|
|
Copyright (C) 2012-2024 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>
|
|
#include <ldsodefs.h>
|
|
#include <sysdep.h>
|
|
#include <sys/ifunc.h>
|
|
|
|
#define ELF_MACHINE_IRELA 1
|
|
|
|
static inline ElfW(Addr)
|
|
__attribute ((always_inline))
|
|
elf_ifunc_invoke (ElfW(Addr) addr)
|
|
{
|
|
__ifunc_arg_t arg;
|
|
|
|
arg._size = sizeof (arg);
|
|
arg._hwcap = GLRO(dl_hwcap);
|
|
arg._hwcap2 = GLRO(dl_hwcap2);
|
|
return ((ElfW(Addr) (*) (uint64_t, const __ifunc_arg_t *)) (addr))
|
|
(GLRO(dl_hwcap) | _IFUNC_ARG_HWCAP, &arg);
|
|
}
|
|
|
|
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 == AARCH64_R(IRELATIVE)))
|
|
{
|
|
ElfW(Addr) value = elf_ifunc_invoke (reloc->r_addend);
|
|
*reloc_addr = value;
|
|
}
|
|
else
|
|
__libc_fatal ("Unexpected reloc type in static binary.\n");
|
|
}
|
|
|
|
#endif
|