mirror of
https://github.com/eried/portapack-mayhem.git
synced 2024-09-20 16:15:51 +00:00
121 lines
2.7 KiB
C++
121 lines
2.7 KiB
C++
/*
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* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
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* Copyright (C) 2023 Bernd Herzog
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*
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* This file is part of PortaPack.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#include "debug.hpp"
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#include <ch.h>
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#include <hal.h>
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#include "portapack_shared_memory.hpp"
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void write_m4_panic_msg(const char *panic_message, struct extctx *ctxp) {
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if (ctxp == nullptr) {
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shared_memory.bb_data.data[0] = 0;
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}
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else {
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shared_memory.bb_data.data[0] = 1;
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*((uint32_t *)&shared_memory.bb_data.data[4]) = SCB->CFSR;
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memcpy(&shared_memory.bb_data.data[8], ctxp, sizeof(struct extctx));
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}
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for(size_t i=0; i<sizeof(shared_memory.m4_panic_msg); i++) {
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if( *panic_message == 0 ) {
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shared_memory.m4_panic_msg[i] = 0;
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} else {
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shared_memory.m4_panic_msg[i] = *(panic_message++);
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}
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}
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}
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extern "C" {
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#if CH_DBG_ENABLED
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void port_halt(void) {
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port_disable();
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if (dbg_panic_msg == nullptr)
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dbg_panic_msg = "system halted";
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write_m4_panic_msg(dbg_panic_msg, nullptr);
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while (true) {
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HALT_IF_DEBUGGING();
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}
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}
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#endif
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CH_IRQ_HANDLER(MemManageVector) {
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#if CH_DBG_ENABLED
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chDbgPanic("MemManage");
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#else
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chSysHalt();
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#endif
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}
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CH_IRQ_HANDLER(BusFaultVector) {
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#if CH_DBG_ENABLED
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chDbgPanic("BusFault");
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#else
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chSysHalt();
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#endif
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}
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CH_IRQ_HANDLER(UsageFaultVector) {
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#if CH_DBG_ENABLED
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chDbgPanic("UsageFault");
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#else
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chSysHalt();
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#endif
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}
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CH_IRQ_HANDLER(HardFaultVector) {
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#if CH_DBG_ENABLED
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regarm_t _saved_lr;
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asm volatile ("mov %0, lr" : "=r" (_saved_lr) : : "memory");
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struct extctx *ctxp;
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port_lock_from_isr();
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if ((uint32_t)_saved_lr & 0x04)
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ctxp = (struct extctx *)__get_PSP();
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else
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ctxp = (struct extctx *)__get_MSP();
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volatile uint32_t stack_space_left = get_free_stack_space();
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if (stack_space_left < 16)
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write_m4_panic_msg("Stack Overflow", ctxp);
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else write_m4_panic_msg("Hard Fault", ctxp);
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port_disable();
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while (true) {
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HALT_IF_DEBUGGING();
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}
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#else
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chSysHalt();
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#endif
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}
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}
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