forked from len0rd/rockbox
6ea328f0f1
Even though ARMv7-M has a hardware divider, 64-bit division is
handled in software and needs a div0 handler. The libgcc routines
call __aeabi_{i,l}div0 so we alias those to __div0.
Change-Id: I5152c43d39e25e03f31404753f13978a614aca06
66 lines
2 KiB
C
66 lines
2 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2025 by Aidan MacDonald
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "config.h"
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#include "system.h"
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struct armv7m_exception_frame
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{
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unsigned long r0;
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unsigned long r1;
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unsigned long r2;
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unsigned long r3;
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unsigned long r12;
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unsigned long lr;
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unsigned long pc;
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unsigned long xpsr;
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};
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void UIE(void)
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{
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while (1);
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}
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void __div0(void)
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{
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while (1);
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}
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void __aeabi_idiv0(void) __attribute__((alias("__div0")));
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void __aeabi_ldiv0(void) __attribute__((alias("__div0")));
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#define ATTR_IRQ_HANDLER __attribute__((weak, alias("UIE")))
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void nmi_handler(void) ATTR_IRQ_HANDLER;
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void hardfault_handler(void) ATTR_IRQ_HANDLER;
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void pendsv_handler(void) ATTR_IRQ_HANDLER;
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void svcall_handler(void) ATTR_IRQ_HANDLER;
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void systick_handler(void) ATTR_IRQ_HANDLER;
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#if ARCH_VERSION >= 7
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void memmanage_handler(void) ATTR_IRQ_HANDLER;
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void busfault_handler(void) ATTR_IRQ_HANDLER;
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void usagefault_handler(void) ATTR_IRQ_HANDLER;
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void debugmonitor_handler(void) ATTR_IRQ_HANDLER;
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#endif
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#if ARCH_VERSION >= 8
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void securefault_handler(void) ATTR_IRQ_HANDLER;
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#endif
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