blob: 81f3755b3bea0be618ba1de57b675e755304efba (
plain)
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
|
/* Machine-dependent ELF dynamic relocation inline functions. ARM/NaCl version.
Copyright (C) 2015 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_machine_h
/* This is only needed for handling TEXTRELs and NaCl will never
support TEXTRELs at all. */
#define CLEAR_CACHE(start, end) __builtin_trap ()
#endif
/* The rest is just machine-specific.
This #include is outside the #ifndef because the parts of
dl-machine.h used only by dynamic-link.h are outside the guard. */
#include <sysdeps/arm/dl-machine.h>
#ifdef dl_machine_h
/* Initial entry point code for the dynamic linker.
The C function `_dl_start' is the real entry point;
its return value is the user program's entry point. */
#undef RTLD_START
#define RTLD_START asm ("\
.text\n\
.globl _start\n\
.type _start, %function\n\
.p2align 4\n\
_start:\n\
@ r0 has the pointer to the info block (see nacl_startup.h)\n\
mov r1, sp @ Save stack base for __libc_stack_end.\n\
push {r0-r3} @ Push those, maintaining alignment to 16.\n\
mov r0, sp @ Pointer to {info, sp} is argument.\n\
sfi_bl _dl_start\n\
pop {r1-r4} @ Restore stack, getting info block into r1.\n\
mov lr, #0 @ Return address for noreturn call.\n\
b _dl_start_user");
#endif
|
