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/* SPDX-License-Identifier: BSD-3-Clause */
.text
.align 6
.arm
.global exception_table
exception_table:
b 1f
b 2f
b 3f
b 4f
b 5f
b 6f
b 7f
b 8f
1:
ldr sp, _not_used
b exception_common
2:
ldr sp, _undefined_instruction
b exception_common
3:
ldr sp, _software_interrupt
b exception_common
4:
ldr sp, _prefetch_abort
b exception_common
5:
ldr sp, _data_abort
b exception_common
6:
ldr sp, _not_used
b exception_common
7:
ldr sp, _irq
b exception_common
8:
ldr sp, _fiq
b exception_common
exception_common:
str sp, exception_handler
ldr sp, exception_stack_end
push { lr }
stmfd sp, { sp, lr }^
sub sp, sp, $8
push { r0 - r12 }
mov r0, sp
mov lr, pc
ldr pc, exception_handler
pop { r0 - r12 }
add sp, sp, $8
ldmfd sp!, { pc }^
.align 2
_undefined_instruction: .word exception_undefined_instruction
_software_interrupt: .word exception_software_interrupt
_prefetch_abort: .word exception_prefetch_abort
_data_abort: .word exception_data_abort
_not_used: .word exception_not_used
_irq: .word exception_irq
_fiq: .word exception_fiq
.global exception_stack_end
exception_stack_end:
.word 0
exception_handler:
.word 0
.thumb
.global set_vbar
.thumb_func
set_vbar:
mcr p15, 0, r0, c12, c0, 0
bx lr
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