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/*
ChibiOS - Copyright (C) 2006..2015 Giovanni Di Sirio.
This file is part of ChibiOS.
ChibiOS is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file ARM/compilers/GCC/vectors.s
* @brief Interrupt vectors for ARM devices.
*
* @defgroup ARM_VECTORS ARM Exception Vectors
* @{
*/
#if defined(__DOXYGEN__)
/**
* @brief Unhandled exceptions handler.
* @details Any undefined exception vector points to this function by default.
* This function simply stops the system into an infinite loop.
* @note The default implementation is a weak symbol, the application
* can override the default implementation.
*
* @notapi
*/
void _unhandled_exception(void) {}
#endif
#if !defined(__DOXYGEN__)
.section .vectors, "ax"
.code 32
.balign 4
/*
* System entry points.
*/
.global _start
_start:
ldr pc, _reset
ldr pc, _undefined
ldr pc, _swi
ldr pc, _prefetch
ldr pc, _abort
nop
ldr pc, _irq
ldr pc, _fiq
_reset:
.word Reset_Handler
_undefined:
.word Und_Handler
_swi:
.word Swi_Handler
_prefetch:
.word Prefetch_Handler
_abort:
.word Abort_Handler
_fiq:
.word Fiq_Handler
_irq:
.word Irq_Handler
/*
* Default exceptions handlers. The handlers are declared weak in order to be
* replaced by the real handling code. Everything is defaulted to an infinite
* loop.
*/
.weak Reset_Handler
Reset_Handler:
.weak Und_Handler
Und_Handler:
.weak Swi_Handler
Swi_Handler:
.weak Prefetch_Handler
Prefetch_Handler:
.weak Abort_Handler
Abort_Handler:
.weak Fiq_Handler
Fiq_Handler:
.weak Irq_Handler
Irq_Handler:
.weak _unhandled_exception
_unhandled_exception:
b _unhandled_exception
#endif
/** @} */
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