| /* |
| * This file is part of the libpayload project. |
| * |
| * Copyright 2013 Google Inc. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. 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. |
| * 3. 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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. |
| */ |
| |
| .global exception_stack_end |
| exception_stack_end: |
| .word 0 |
| |
| exception_handler: |
| .word 0 |
| |
| |
| .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 }^ |
| |
| |
| _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 |
| |
| .thumb |
| .global set_vbar |
| .thumb_func |
| set_vbar: |
| mcr p15, 0, r0, c12, c0, 0 |
| bx lr |
| |