about summary refs log tree commit diff
path: root/sysdeps/mach/hurd/powerpc/static-start.S
blob: 7c48875476ef07eb1d48e2ec31f194d1675bd397 (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
/* Startup code for statically linked Hurd/PowerPC binaries.
   Copyright (C) 1998,2001, 2002 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/>.  */

#include <sysdep.h>

 /* These are the various addresses we require.  */
	.section ".rodata"
	.align	2
	weak_extern(__libc_csu_init)
	weak_extern(__libc_csu_fini)
L(start_addresses):
	.long	_SDA_BASE_
	.long	JUMPTARGET(main)
	.long	JUMPTARGET(__libc_csu_init)
	.long	JUMPTARGET(__libc_csu_fini)
	ASM_SIZE_DIRECTIVE(L(start_addresses))

	.section ".text"
ENTRY(_start)
 /* Save the stack pointer to pass to _hurd_stack_setup.  */
	mr	r3,r1
 /* Set up an initial stack frame.  */
	li	r0,0
	stwu	r0,-16(r1)
 /* Call _hurd_stack_setup.  */
	bl	JUMPTARGET(_hurd_stack_setup)
 /* Pass the argument data to __libc_start_main.  */
	addi	r9,r1,16
 /* Clear the LR.  */
	li	r0,0
	mtlr	r0
 /* Set r13 to point at the 'small data area', and put the address of
    start_addresses in r8...  */
	lis	r8,L(start_addresses)@ha
	lwzu	r13,L(start_addresses)@l(r8)
 /* and continue in libc-start, in glibc.  */
	b	JUMPTARGET(__libc_start_main)
END(_start)

/* Define a symbol for the first piece of initialized data.  */
	.section ".data"
__data_start:
weak_alias (__data_start, data_start)