mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-15 01:21:06 +00:00
55 lines
1.7 KiB
C
55 lines
1.7 KiB
C
/* Machine-dependent ELF indirect relocation inline functions.
|
|
Copyright (C) 2022 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 <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 =
|
|
{
|
|
._size = sizeof (__ifunc_arg_t),
|
|
._hwcap = GLRO(dl_hwcap),
|
|
};
|
|
return ((ElfW(Addr) (*) (const __ifunc_arg_t *)) (addr)) (&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 == R_LARCH_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 */
|