/* 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 . */ /** * @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 /** @} */