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
|
_interrupt_vectors:
b reset_handler_caller
b undef_handler_caller
b svc_handler_caller
b abort_handler_caller
b abort_handler_caller
b generic_handler_caller
b irq_handler_caller
b fiq_handler_caller
reset_handler_caller:
ldr sp, =_supervisor_stack_top
ldr r5, =reset_handler
bx r5
undef_handler_caller:
ldr sp, =_supervisor_stack_top
ldr r5, =undefined_instruction_vector
bx r5
svc_handler_caller:
ldr sp, =_supervisor_stack_top
push {r0-r12, lr}
mov r0, sp
ldr r5, =supervisor_call_handler
blx r5
ldm sp!, {r0-r12, pc} ^
abort_handler_caller:
ldr sp, =_supervisor_stack_top
ldr r5, =abort_handler
bx r5
generic_handler_caller:
ldr sp, =_supervisor_stack_top
ldr r5, =generic_handler
bx r5
irq_handler_caller:
ldr sp, =_irq_stack_top
sub lr, #4
push {r0-r12, lr}
mov r0, sp
ldr r3, =irq_handler
blx r3
ldm sp!, {r0-r12, pc} ^
fiq_handler_caller:
ldr sp, =_fiq_stack_top
ldr r5, =fiq_handler
bx r5
|