WebSVN – HelenOS – Diff – /branches/arm/kernel/arch/arm32/src/start.S


#
# Copyright (c) 2007 Michal Kebrt
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# - Redistributions of source code must retain the above copyright
#   notice, this list of conditions and the following disclaimer.
# - Redistributions in binary form must reproduce the above copyright
#   notice, this list of conditions and the following disclaimer in the
#   documentation and/or other materials provided with the distribution.
# - The name of the author may not be used to endorse or promote products
#   derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
 
#include <arch/asm/boot.h>
 
.text
 
.global kernel_image_start
.global exc_stack
 
.global exc_stack
.global supervisor_sp
 
 
kernel_image_start:
 
	ldr sp, =end_stack
	cmp r2, #0
	beq bootinfo_end
 
	ldr r3, =bootinfo
 
	bootinfo_loop:
		ldr r4, [r1]
		str r4, [r3]
 
		add r1, r1, #4
		add r3, r3, #4
		add r2, r2, #-4
 
		cmp r2, #0
		bne bootinfo_loop
	
	bootinfo_end:
 
	bl arch_pre_main
 
	bl main_bsp
 
	b halt
 
 
	.space TEMP_STACK_SIZE
end_stack:
	.space 1024
 
 
 
 
exc_stack:
 
	.space 4
supervisor_sp:
	.space 4
 
	.space 4
halt:
	ldr r0,=0x10000010
	ldr r1, [r0]
	b halt
 
 

Rev 2280	Rev 2284
1	#	1	#
2	# Copyright (c) 2007 Michal Kebrt	2	# Copyright (c) 2007 Michal Kebrt
3	# All rights reserved.	3	# All rights reserved.
4	#	4	#
5	# Redistribution and use in source and binary forms, with or without	5	# Redistribution and use in source and binary forms, with or without
6	# modification, are permitted provided that the following conditions	6	# modification, are permitted provided that the following conditions
7	# are met:	7	# are met:
8	#	8	#
9	# - Redistributions of source code must retain the above copyright	9	# - Redistributions of source code must retain the above copyright
10	# notice, this list of conditions and the following disclaimer.	10	# notice, this list of conditions and the following disclaimer.
11	# - Redistributions in binary form must reproduce the above copyright	11	# - Redistributions in binary form must reproduce the above copyright
12	# notice, this list of conditions and the following disclaimer in the	12	# notice, this list of conditions and the following disclaimer in the
13	# documentation and/or other materials provided with the distribution.	13	# documentation and/or other materials provided with the distribution.
14	# - The name of the author may not be used to endorse or promote products	14	# - The name of the author may not be used to endorse or promote products
15	# derived from this software without specific prior written permission.	15	# derived from this software without specific prior written permission.
16	#	16	#
17	# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	17	# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18	# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	18	# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19	# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	22	# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23	# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	23	# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	24	# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25	# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	25	# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26	# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	26	# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	#	27	#
28		28
29	#include <arch/asm/boot.h>	29	#include <arch/asm/boot.h>
30		30
31	.text	31	.text
32		32
33	.global kernel_image_start	33	.global kernel_image_start
34	.global irq_stack	34	.global exc_stack
35	.global abort_stack	-
36	.global exc_stack	35	.global exc_stack
37	.global supervisor_sp	36	.global supervisor_sp
38		37
-		38
39	kernel_image_start:	39	kernel_image_start:
40		40
41	ldr sp, =end_stack	41	ldr sp, =end_stack
42	cmp r2, #0	42	cmp r2, #0
43	beq bootinfo_end	43	beq bootinfo_end
44		44
45	ldr r3, =bootinfo	45	ldr r3, =bootinfo
46		46
47	bootinfo_loop:	47	bootinfo_loop:
48	ldr r4, [r1]	48	ldr r4, [r1]
49	str r4, [r3]	49	str r4, [r3]
50		50
51	add r1, r1, #4	51	add r1, r1, #4
52	add r3, r3, #4	52	add r3, r3, #4
53	add r2, r2, #-4	53	add r2, r2, #-4
54		54
55	cmp r2, #0	55	cmp r2, #0
56	bne bootinfo_loop	56	bne bootinfo_loop
57		57
58	bootinfo_end:	58	bootinfo_end:
59		59
60	bl arch_pre_main	60	bl arch_pre_main
61		61
62	bl main_bsp	62	bl main_bsp
63		63
64	b halt	64	b halt
65		65
66		66
67	.space TEMP_STACK_SIZE	67	.space TEMP_STACK_SIZE
68	end_stack:	68	end_stack:
69	.space 1024	69	.space 1024
70	irq_stack:	-
71	.space 1024	-
72	abort_stack:	-
73	.space 1024	-
74	exc_stack:	70	exc_stack:
75		-
76	.space 4	71	.space 4
77	supervisor_sp:	72	supervisor_sp:
78	.space 4	73	.space 4
79		74
80	.space 4	75	.space 4
81	halt:	76	halt:
82	ldr r0,=0x10000010	77	ldr r0,=0x10000010
83	ldr r1, [r0]	78	ldr r1, [r0]
84	b halt	79	b halt
85		80
86		81

Subversion Repositories HelenOS

(root)/branches/arm/kernel/arch/arm32/src/start.S – Rev 2280 → 2284