blob: 85b36cd06670e94bcdbcc692ec58e51bd7929fbc (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
/* Machine-dependent ELF indirect relocation inline functions.
SPARC 64-bit version.
Copyright (C) 2010-2014 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 (__builtin_expect (r_type == R_SPARC_IRELATIVE, 1))
{
Elf64_Addr *const reloc_addr = (void *) reloc->r_offset;
Elf64_Addr value = elf_ifunc_invoke(reloc->r_addend);
*reloc_addr = value;
}
else if (__builtin_expect (r_type == R_SPARC_JMP_IREL, 1))
{
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 */
|
