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/*
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* This file is part of the CmBacktrace Library.
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*
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* Copyright (c) 2016, Armink, <armink.ztl@gmail.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* 'Software'), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* Function: Initialize function and other general function.
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* Created on: 2016-12-15
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*/
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#include <cm_backtrace.h>
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#include <stdbool.h>
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#include <string.h>
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#include <stdio.h>
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#if defined(__CC_ARM)
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#define SECTION_START(_name_) _name_##$$Base
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#define SECTION_END(_name_) _name_##$$Limit
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#define IMAGE_SECTION_START(_name_) Image$$##_name_##$$Base
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#define IMAGE_SECTION_END(_name_) Image$$##_name_##$$Limit
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#define CSTACK_BLOCK_START(_name_) SECTION_START(_name_)
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#define CSTACK_BLOCK_END(_name_) SECTION_END(_name_)
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#define CODE_SECTION_START(_name_) IMAGE_SECTION_START(_name_)
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#define CODE_SECTION_END(_name_) IMAGE_SECTION_END(_name_)
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extern const int CODE_SECTION_START(CMB_CODE_SECTION_NAME);
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extern const int CODE_SECTION_END(CMB_CODE_SECTION_NAME);
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extern const int CSTACK_BLOCK_START(CMB_CSTACK_BLOCK_NAME);
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extern const int CSTACK_BLOCK_END(CMB_CSTACK_BLOCK_NAME);
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//TODO 待测试
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#elif defined(__ICCARM__)
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#pragma section=CMB_CSTACK_BLOCK_NAME
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#pragma section=CMB_CODE_SECTION_NAME
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#elif defined(__GNUC__)
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#error "not implemented, I hope you can do this"
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//TODO 待实现
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#else
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#error "not supported compiler"
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#endif
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enum {
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PRINT_FIRMWARE_INFO,
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PRINT_ASSERT_ON_THREAD,
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PRINT_ASSERT_ON_HANDLER,
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PRINT_THREAD_STACK_INFO,
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PRINT_MAIN_STACK_INFO,
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PRINT_CALL_STACK_INFO,
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PRINT_CALL_STACK_ERR,
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PRINT_FAULT_ON_THREAD,
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PRINT_FAULT_ON_HANDLER,
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PRINT_REGS_TITLE,
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PRINT_HFSR_VECTBL,
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PRINT_MFSR_IACCVIOL,
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PRINT_MFSR_DACCVIOL,
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PRINT_MFSR_MUNSTKERR,
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PRINT_MFSR_MSTKERR,
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PRINT_MFSR_MLSPERR,
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PRINT_BFSR_IBUSERR,
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PRINT_BFSR_PRECISERR,
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PRINT_BFSR_IMPREISERR,
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PRINT_BFSR_UNSTKERR,
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PRINT_BFSR_STKERR,
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PRINT_BFSR_LSPERR,
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PRINT_UFSR_UNDEFINSTR,
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PRINT_UFSR_INVSTATE,
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PRINT_UFSR_INVPC,
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PRINT_UFSR_NOCP,
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PRINT_UFSR_UNALIGNED,
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PRINT_UFSR_DIVBYZERO,
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PRINT_DFSR_HALTED,
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PRINT_DFSR_BKPT,
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PRINT_DFSR_DWTTRAP,
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PRINT_DFSR_VCATCH,
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PRINT_DFSR_EXTERNAL,
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};
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static const char *print_info[] = {
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#if (CMB_PRINT_LANGUAGE == CMB_PRINT_LANGUAGE_ENGLISH)
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[PRINT_FIRMWARE_INFO] = {"Firmware name: %s, hardware version: %s, software version: %s"},
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[PRINT_ASSERT_ON_THREAD] = {"Assert on thread %s"},
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[PRINT_ASSERT_ON_HANDLER] = {"Assert on interrupt or bare metal(no OS) environment"},
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[PRINT_THREAD_STACK_INFO] = {"===== Thread stack information ====="},
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[PRINT_MAIN_STACK_INFO] = {"====== Main stack information ======"},
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[PRINT_CALL_STACK_INFO] = {"Show more call stack info by run: addr2line -e %s%s -a -f %.*s"},
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[PRINT_CALL_STACK_ERR] = {"Dump call stack has an error"},
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[PRINT_FAULT_ON_THREAD] = {"Fault on thread %s"},
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[PRINT_FAULT_ON_HANDLER] = {"Fault on interrupt or bare metal(no OS) environment"},
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[PRINT_REGS_TITLE] = {"=================== Registers information ===================="},
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[PRINT_HFSR_VECTBL] = {"Hard fault is caused by failed vector fetch"},
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[PRINT_MFSR_IACCVIOL] = {"Memory management fault is caused by instruction access violation"},
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[PRINT_MFSR_DACCVIOL] = {"Memory management fault is caused by data access violation"},
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[PRINT_MFSR_MUNSTKERR] = {"Memory management fault is caused by unstacking error"},
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[PRINT_MFSR_MSTKERR] = {"Memory management fault is caused by stacking error"},
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[PRINT_MFSR_MLSPERR] = {"Memory management fault is caused by floating-point lazy state preservation"},
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[PRINT_BFSR_IBUSERR] = {"Bus fault is caused by instruction access violation"},
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[PRINT_BFSR_PRECISERR] = {"Bus fault is caused by precise data access violation"},
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[PRINT_BFSR_IMPREISERR] = {"Bus fault is caused by imprecise data access violation"},
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[PRINT_BFSR_UNSTKERR] = {"Bus fault is caused by unstacking error"},
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[PRINT_BFSR_STKERR] = {"Bus fault is caused by stacking error"},
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[PRINT_BFSR_LSPERR] = {"Bus fault is caused by floating-point lazy state preservation"},
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[PRINT_UFSR_UNDEFINSTR] = {"Usage fault is caused by attempts to execute an undefined instruction"},
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[PRINT_UFSR_INVSTATE] = {"Usage fault is caused by attempts to switch to an invalid state (e.g., ARM)"},
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[PRINT_UFSR_INVPC] = {"Usage fault is caused by attempts to do an exception with a bad value in the EXC_RETURN number"},
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[PRINT_UFSR_NOCP] = {"Usage fault is caused by attempts to execute a coprocessor instruction"},
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[PRINT_UFSR_UNALIGNED] = {"Usage fault is caused by indicates that an unaligned access fault has taken place"},
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[PRINT_UFSR_DIVBYZERO] = {"Usage fault is caused by Indicates a divide by zero has taken place (can be set only if DIV_0_TRP is set)"},
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[PRINT_DFSR_HALTED] = {"Debug fault is caused by halt requested in NVIC"},
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[PRINT_DFSR_BKPT] = {"Debug fault is caused by BKPT instruction executed"},
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[PRINT_DFSR_DWTTRAP] = {"Debug fault is caused by DWT match occurred"},
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[PRINT_DFSR_VCATCH] = {"Debug fault is caused by Vector fetch occurred"},
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[PRINT_DFSR_EXTERNAL] = {"Debug fault is caused by EDBGRQ signal asserted"},
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#elif (CMB_PRINT_LANGUAGE == CMB_PRINT_LANUUAGE_CHINESE)
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[PRINT_FIRMWARE_INFO] = {"固件名称：%s，硬件版本号：%s，软件版本号：%s"},
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[PRINT_ASSERT_ON_THREAD] = {"在线程(%s)中发生断言"},
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[PRINT_ASSERT_ON_HANDLER] = {"在中断或裸机环境下发生断言"},
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[PRINT_THREAD_STACK_INFO] = {"=========== 线程堆栈信息 ==========="},
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[PRINT_MAIN_STACK_INFO] = {"============ 主堆栈信息 ============"},
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[PRINT_CALL_STACK_INFO] = {"查看更多函数调用栈信息，请运行：addr2line -e %s%s -a -f %.*s"},
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[PRINT_CALL_STACK_ERR] = {"获取函数调用栈失败"},
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[PRINT_FAULT_ON_THREAD] = { "在线程(%s)中发生错误异常" },
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[PRINT_FAULT_ON_HANDLER] = {"在中断或裸机环境下发生错误异常"},
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[PRINT_REGS_TITLE] = {"========================= 寄存器信息 ========================="},
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[PRINT_HFSR_VECTBL] = {"发生硬错误，原因：取中断向量时出错"},
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[PRINT_MFSR_IACCVIOL] = {"发生存储器管理错误，原因：企图从不允许访问的区域取指令"},
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[PRINT_MFSR_DACCVIOL] = {"发生存储器管理错误，原因：企图从不允许访问的区域读、写数据"},
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[PRINT_MFSR_MUNSTKERR] = {"发生存储器管理错误，原因：出栈时企图访问不被允许的区域"},
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[PRINT_MFSR_MSTKERR] = {"发生存储器管理错误，原因：入栈时企图访问不被允许的区域"},
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[PRINT_MFSR_MLSPERR] = {"发生存储器管理错误，原因：惰性保存浮点状态时发生错误"},
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[PRINT_BFSR_IBUSERR] = {"发生总线错误，原因：指令总线错误"},
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[PRINT_BFSR_PRECISERR] = {"发生总线错误，原因：精确的数据总线错误"},
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[PRINT_BFSR_IMPREISERR] = {"发生总线错误，原因：不精确的数据总线错误"},
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[PRINT_BFSR_UNSTKERR] = {"发生总线错误，原因：出栈时发生错误"},
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[PRINT_BFSR_STKERR] = {"发生总线错误，原因：入栈时发生错误"},
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[PRINT_BFSR_LSPERR] = {"发生总线错误，原因：惰性保存浮点状态时发生错误"},
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[PRINT_UFSR_UNDEFINSTR] = {"发生用法错误，原因：企图执行未定义指令"},
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[PRINT_UFSR_INVSTATE] = {"发生用法错误，原因：试图切换到 ARM 状态"},
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[PRINT_UFSR_INVPC] = {"发生用法错误，原因：无效的异常返回码"},
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[PRINT_UFSR_NOCP] = {"发生用法错误，原因：企图执行协处理器指令"},
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[PRINT_UFSR_UNALIGNED] = {"发生用法错误，原因：企图执行非对齐访问"},
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[PRINT_UFSR_DIVBYZERO] = {"发生用法错误，原因：企图执行除 0 操作"},
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[PRINT_DFSR_HALTED] = {"发生调试错误，原因：NVIC 停机请求"},
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[PRINT_DFSR_BKPT] = {"发生调试错误，原因：执行 BKPT 指令"},
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[PRINT_DFSR_DWTTRAP] = {"发生调试错误，原因：数据监测点匹配"},
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[PRINT_DFSR_VCATCH] = {"发生调试错误，原因：发生向量捕获"},
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[PRINT_DFSR_EXTERNAL] = {"发生调试错误，原因：外部调试请求"},
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#else
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#error "CMB_PRINT_LANGUAGE defined error in 'cmb_cfg.h'"
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#endif
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};
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static char fw_name[CMB_NAME_MAX] = {0};
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static char hw_ver[CMB_NAME_MAX] = {0};
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static char sw_ver[CMB_NAME_MAX] = {0};
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static uint32_t main_stack_start_addr = 0;
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static size_t main_stack_size = 0;
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static uint32_t code_start_addr = 0;
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static size_t code_size = 0;
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static bool init_ok = false;
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static char call_stack_info[CMB_CALL_STACK_MAX_DEPTH * (8 + 1)] = { 0 };
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static bool on_fault = false;
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static struct cmb_hard_fault_regs regs;
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static bool on_thread_before_fault = false;
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static bool statck_has_fpu_regs = false;
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/**
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* library initialize
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*/
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void cm_backtrace_init(const char *firmware_name, const char *hardware_ver, const char *software_ver) {
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strncpy(fw_name, firmware_name, CMB_NAME_MAX);
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strncpy(hw_ver, hardware_ver, CMB_NAME_MAX);
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strncpy(sw_ver, software_ver, CMB_NAME_MAX);
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#if defined(__CC_ARM)
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main_stack_start_addr = (uint32_t)&CODE_SECTION_START(CMB_CODE_SECTION_NAME);
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main_stack_size = (uint32_t)&CODE_SECTION_END(CMB_CODE_SECTION_NAME) - main_stack_start_addr;
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code_start_addr = (uint32_t)&CSTACK_BLOCK_START(CMB_CSTACK_BLOCK_NAME);
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code_size = (uint32_t)&CSTACK_BLOCK_END(CMB_CSTACK_BLOCK_NAME) - code_start_addr;
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//TODO 待测试
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#elif defined(__ICCARM__)
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main_stack_start_addr = (uint32_t)__section_begin(CMB_CSTACK_BLOCK_NAME);
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main_stack_size = (uint32_t)__section_end(CMB_CSTACK_BLOCK_NAME) - main_stack_start_addr;
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code_start_addr = (uint32_t)__section_begin(CMB_CODE_SECTION_NAME);
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code_size = (uint32_t)__section_end(CMB_CODE_SECTION_NAME) - code_start_addr;
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#elif defined(__GNUC__)
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#error "not implemented, I hope you can do this"
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//TODO 待实现
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#else
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#error "not supported compiler"
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#endif
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init_ok = true;
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}
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/**
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* print firmware information, such as: firmware name, hardware version, software version
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*/
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void cm_backtrace_firmware_info(void) {
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cmb_println(print_info[PRINT_FIRMWARE_INFO], fw_name, hw_ver, sw_ver);
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}
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#ifdef CMB_USING_OS_PLATFORM
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/**
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* Get current thread stack information
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*
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* @param sp stack current pointer
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* @param start_addr stack start address
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* @param size stack size
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*/
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static void get_cur_thread_stack_info(uint32_t sp, uint32_t *start_addr, size_t *size) {
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CMB_ASSERT(start_addr);
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CMB_ASSERT(size);
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#if (CMB_OS_PLATFORM_TYPE == CMB_OS_PLATFORM_RTT)
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*start_addr = (uint32_t) rt_thread_self()->stack_addr;
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*size = rt_thread_self()->stack_size;
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#elif (CMB_OS_PLATFORM_TYPE == CMB_OS_PLATFORM_UCOSII)
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extern OS_TCB *OSTCBCur;
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#if OS_TASK_PROFILE_EN > 0
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*start_addr = (uint32_t) OSTCBCur->OSTCBStkBase;
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*size = (sp + OSTCBCur->OSTCBStkUsed) - *start_addr;
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#else
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#error "OS_TASK_PROFILE_EN isn't enable in 'OS_CFG.H'"
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#endif /* OS_TASK_PROFILE_EN > 0 */
|
|
|
|
|
|
|
|
|
|
//TODO 测试
|
|
|
|
|
#elif (CMB_OS_PLATFORM_TYPE == CMB_OS_PLATFORM_UCOSIII)
|
|
|
|
|
#error "not implemented, I hope you can do this"
|
|
|
|
|
//TODO 待实现
|
|
|
|
|
#elif (CMB_OS_PLATFORM_TYPE == CMB_OS_PLATFORM_FREERTOS)
|
|
|
|
|
#error "not implemented, I hope you can do this"
|
|
|
|
|
//TODO 待实现
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Get current thread name
|
|
|
|
|
*/
|
|
|
|
|
static const char *get_cur_thread_name(void) {
|
|
|
|
|
#if (CMB_OS_PLATFORM_TYPE == CMB_OS_PLATFORM_RTT)
|
|
|
|
|
return rt_thread_self()->name;
|
|
|
|
|
#elif (CMB_OS_PLATFORM_TYPE == CMB_OS_PLATFORM_UCOSII)
|
|
|
|
|
extern OS_TCB *OSTCBCur;
|
|
|
|
|
|
|
|
|
|
#if OS_TASK_NAME_SIZE > 1
|
|
|
|
|
return OSTCBCur->OSTCBTaskName;
|
|
|
|
|
#else
|
|
|
|
|
return NULL;
|
|
|
|
|
#endif /* OS_TASK_NAME_SIZE > 1 */
|
|
|
|
|
|
|
|
|
|
//TODO 待测试
|
|
|
|
|
#elif (CMB_OS_PLATFORM_TYPE == CMB_OS_PLATFORM_UCOSIII)
|
|
|
|
|
#error "not implemented, I hope you can do this"
|
|
|
|
|
//TODO 待实现
|
|
|
|
|
#elif (CMB_OS_PLATFORM_TYPE == CMB_OS_PLATFORM_FREERTOS)
|
|
|
|
|
#error "not implemented, I hope you can do this"
|
|
|
|
|
//TODO 待实现
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* dump current thread stack information
|
|
|
|
|
*/
|
|
|
|
|
static void dump_cur_thread_stack(uint32_t stack_start_addr, size_t stack_size, uint32_t *stack_pointer) {
|
|
|
|
|
cmb_println(print_info[PRINT_THREAD_STACK_INFO]);
|
|
|
|
|
for (; (uint32_t) stack_pointer < stack_start_addr + stack_size; stack_pointer++) {
|
|
|
|
|
cmb_println(" addr: %08x data: %08x", stack_pointer, *stack_pointer);
|
|
|
|
|
}
|
|
|
|
|
cmb_println("====================================");
|
|
|
|
|
}
|
|
|
|
|
#endif /* CMB_USING_OS_PLATFORM */
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* dump current main stack information
|
|
|
|
|
*/
|
|
|
|
|
static void dump_main_stack(uint32_t stack_start_addr, size_t stack_size, uint32_t *stack_pointer) {
|
|
|
|
|
cmb_println(print_info[PRINT_MAIN_STACK_INFO]);
|
|
|
|
|
for (; (uint32_t) stack_pointer < stack_start_addr + stack_size; stack_pointer++) {
|
|
|
|
|
cmb_println(" addr: %08x data: %08x", stack_pointer, *stack_pointer);
|
|
|
|
|
}
|
|
|
|
|
cmb_println("====================================");
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* backtrace function call stack
|
|
|
|
|
*
|
|
|
|
|
* @param buffer call stack buffer
|
|
|
|
|
* @param size buffer size
|
|
|
|
|
* @param sp stack pointer
|
|
|
|
|
*
|
|
|
|
|
* @return depth
|
|
|
|
|
*/
|
|
|
|
|
size_t cm_backtrace_call_stack(uint32_t *buffer, size_t size, uint32_t sp) {
|
|
|
|
|
uint32_t stack_start_addr = main_stack_start_addr, stack_size = main_stack_size, cur_stack_pointer;
|
|
|
|
|
size_t depth = 0;
|
|
|
|
|
|
|
|
|
|
if (on_fault) {
|
|
|
|
|
/* first depth is PC */
|
|
|
|
|
buffer[depth++] = regs.saved.pc;
|
|
|
|
|
/* program is running on thread before fault */
|
|
|
|
|
if (on_thread_before_fault) {
|
|
|
|
|
get_cur_thread_stack_info(sp, &stack_start_addr, &stack_size);
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
cur_stack_pointer = __get_SP();
|
|
|
|
|
|
|
|
|
|
#ifdef CMB_USING_OS_PLATFORM
|
|
|
|
|
/* OS environment */
|
|
|
|
|
if (cur_stack_pointer == __get_PSP()) {
|
|
|
|
|
get_cur_thread_stack_info(sp, &stack_start_addr, &stack_size);
|
|
|
|
|
}
|
|
|
|
|
#endif /* CMB_USING_OS_PLATFORM */
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* copy called function address */
|
|
|
|
|
for (; sp < stack_start_addr + stack_size; sp += sizeof(size_t)) {
|
|
|
|
|
if ((*((uint32_t *) sp) >= code_start_addr) && (*((uint32_t *) sp) <= code_start_addr + code_size)
|
|
|
|
|
&& (depth < CMB_CALL_STACK_MAX_DEPTH) && (depth < size)) {
|
|
|
|
|
/* this get value maybe LR, so need decrease a word to PC */
|
|
|
|
|
buffer[depth++] = *((uint32_t *) sp) - sizeof(size_t);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return depth;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* dump function call stack
|
|
|
|
|
*
|
|
|
|
|
* @param sp stack pointer
|
|
|
|
|
*/
|
|
|
|
|
static void print_call_stack(uint32_t sp) {
|
|
|
|
|
size_t i, cur_depth = 0;
|
|
|
|
|
uint32_t call_stack_buf[CMB_CALL_STACK_MAX_DEPTH] = {0};
|
|
|
|
|
|
|
|
|
|
cur_depth = cm_backtrace_call_stack(call_stack_buf, CMB_CALL_STACK_MAX_DEPTH, sp);
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < cur_depth; i++) {
|
|
|
|
|
sprintf(call_stack_info + i * (8 + 1), "%08x", call_stack_buf[i]);
|
|
|
|
|
call_stack_info[i * (8 + 1) + 8] = ' ';
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (cur_depth) {
|
|
|
|
|
cmb_println(print_info[PRINT_CALL_STACK_INFO], fw_name, CMB_ELF_FILE_EXTENSION_NAME, cur_depth * (8 + 1),
|
|
|
|
|
call_stack_info);
|
|
|
|
|
} else {
|
|
|
|
|
cmb_println(print_info[PRINT_CALL_STACK_ERR]);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* backtrace for assert
|
|
|
|
|
*
|
|
|
|
|
* @param sp the stack pointer when on assert occurred
|
|
|
|
|
*/
|
|
|
|
|
void cm_backtrace_assert(uint32_t sp) {
|
|
|
|
|
uint32_t stack_start_addr = main_stack_start_addr, stack_size = main_stack_size, cur_stack_pointer;
|
|
|
|
|
|
|
|
|
|
CMB_ASSERT(init_ok);
|
|
|
|
|
|
|
|
|
|
cur_stack_pointer = __get_SP();
|
|
|
|
|
cm_backtrace_firmware_info();
|
|
|
|
|
|
|
|
|
|
#ifdef CMB_USING_DUMP_STACK_INFO
|
|
|
|
|
#ifdef CMB_USING_OS_PLATFORM
|
|
|
|
|
/* OS environment */
|
|
|
|
|
if (cur_stack_pointer == __get_MSP()) {
|
|
|
|
|
cmb_println(print_info[PRINT_ASSERT_ON_HANDLER]);
|
|
|
|
|
dump_main_stack(stack_start_addr, stack_size, (uint32_t *) sp);
|
|
|
|
|
} else if (cur_stack_pointer == __get_PSP()) {
|
|
|
|
|
cmb_println(print_info[PRINT_ASSERT_ON_THREAD], get_cur_thread_name());
|
|
|
|
|
get_cur_thread_stack_info(sp, &stack_start_addr, &stack_size);
|
|
|
|
|
dump_cur_thread_stack(stack_start_addr, stack_size, (uint32_t *) sp);
|
|
|
|
|
}
|
|
|
|
|
#else
|
|
|
|
|
/* bare metal(no OS) environment */
|
|
|
|
|
dump_main_stack();
|
|
|
|
|
#endif /* CMB_USING_OS_PLATFORM */
|
|
|
|
|
#endif /* CMB_USING_DUMP_STACK_INFO */
|
|
|
|
|
|
|
|
|
|
print_call_stack(sp);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#if (CMB_CPU_PLATFORM_TYPE != CMB_CPU_ARM_CORTEX_M0)
|
|
|
|
|
/**
|
|
|
|
|
* fault diagnosis then print cause of fault
|
|
|
|
|
*/
|
|
|
|
|
static void fault_diagnosis(void) {
|
|
|
|
|
if (regs.hfsr.bits.VECTBL) {
|
|
|
|
|
cmb_println(print_info[PRINT_HFSR_VECTBL]);
|
|
|
|
|
}
|
|
|
|
|
if (regs.hfsr.bits.FORCED) {
|
|
|
|
|
/* Memory Management Fault */
|
|
|
|
|
if (regs.mfsr.value) {
|
|
|
|
|
if (regs.mfsr.bits.IACCVIOL) {
|
|
|
|
|
cmb_println(print_info[PRINT_MFSR_IACCVIOL]);
|
|
|
|
|
}
|
|
|
|
|
if (regs.mfsr.bits.DACCVIOL) {
|
|
|
|
|
cmb_println(print_info[PRINT_MFSR_DACCVIOL]);
|
|
|
|
|
}
|
|
|
|
|
if (regs.mfsr.bits.MUNSTKERR) {
|
|
|
|
|
cmb_println(print_info[PRINT_MFSR_MUNSTKERR]);
|
|
|
|
|
}
|
|
|
|
|
if (regs.mfsr.bits.MSTKERR) {
|
|
|
|
|
cmb_println(print_info[PRINT_MFSR_MSTKERR]);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#if (CMB_CPU_PLATFORM_TYPE == CMB_CPU_ARM_CORTEX_M4) || (CMB_CPU_PLATFORM_TYPE == CMB_CPU_ARM_CORTEX_M7)
|
|
|
|
|
if (regs.mfsr.bits.MLSPERR) {
|
|
|
|
|
cmb_println(print_info[PRINT_MFSR_MLSPERR]);
|
|
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
if (regs.mfsr.bits.MMARVALID) {
|
|
|
|
|
//TODO
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
/* Bus Fault */
|
|
|
|
|
if (regs.bfsr.value) {
|
|
|
|
|
if (regs.bfsr.bits.IBUSERR) {
|
|
|
|
|
cmb_println(print_info[PRINT_BFSR_IBUSERR]);
|
|
|
|
|
}
|
|
|
|
|
if (regs.bfsr.bits.PRECISERR) {
|
|
|
|
|
cmb_println(print_info[PRINT_BFSR_PRECISERR]);
|
|
|
|
|
}
|
|
|
|
|
if (regs.bfsr.bits.IMPREISERR) {
|
|
|
|
|
cmb_println(print_info[PRINT_BFSR_IMPREISERR]);
|
|
|
|
|
}
|
|
|
|
|
if (regs.bfsr.bits.UNSTKERR) {
|
|
|
|
|
cmb_println(print_info[PRINT_BFSR_UNSTKERR]);
|
|
|
|
|
}
|
|
|
|
|
if (regs.bfsr.bits.STKERR) {
|
|
|
|
|
cmb_println(print_info[PRINT_BFSR_STKERR]);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#if (CMB_CPU_PLATFORM_TYPE == CMB_CPU_ARM_CORTEX_M4) || (CMB_CPU_PLATFORM_TYPE == CMB_CPU_ARM_CORTEX_M7)
|
|
|
|
|
if (regs.bfsr.bits.LSPERR) {
|
|
|
|
|
cmb_println(print_info[PRINT_BFSR_LSPERR]);
|
|
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
if (regs.bfsr.bits.BFARVALID) {
|
|
|
|
|
//TODO
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
/* Usage Fault */
|
|
|
|
|
if (regs.ufsr.value) {
|
|
|
|
|
if (regs.ufsr.bits.UNDEFINSTR) {
|
|
|
|
|
cmb_println(print_info[PRINT_UFSR_UNDEFINSTR]);
|
|
|
|
|
}
|
|
|
|
|
if (regs.ufsr.bits.INVSTATE) {
|
|
|
|
|
cmb_println(print_info[PRINT_UFSR_INVSTATE]);
|
|
|
|
|
}
|
|
|
|
|
if (regs.ufsr.bits.INVPC) {
|
|
|
|
|
cmb_println(print_info[PRINT_UFSR_INVPC]);
|
|
|
|
|
}
|
|
|
|
|
if (regs.ufsr.bits.NOCP) {
|
|
|
|
|
cmb_println(print_info[PRINT_UFSR_NOCP]);
|
|
|
|
|
}
|
|
|
|
|
if (regs.ufsr.bits.UNALIGNED) {
|
|
|
|
|
cmb_println(print_info[PRINT_UFSR_UNALIGNED]);
|
|
|
|
|
}
|
|
|
|
|
if (regs.ufsr.bits.DIVBYZERO) {
|
|
|
|
|
cmb_println(print_info[PRINT_UFSR_DIVBYZERO]);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
/* Debug Fault */
|
|
|
|
|
if (regs.hfsr.bits.DEBUGEVT) {
|
|
|
|
|
if (regs.dfsr.value) {
|
|
|
|
|
if (regs.dfsr.bits.HALTED) {
|
|
|
|
|
cmb_println(print_info[PRINT_DFSR_HALTED]);
|
|
|
|
|
}
|
|
|
|
|
if (regs.dfsr.bits.BKPT) {
|
|
|
|
|
cmb_println(print_info[PRINT_DFSR_BKPT]);
|
|
|
|
|
}
|
|
|
|
|
if (regs.dfsr.bits.DWTTRAP) {
|
|
|
|
|
cmb_println(print_info[PRINT_DFSR_DWTTRAP]);
|
|
|
|
|
}
|
|
|
|
|
if (regs.dfsr.bits.VCATCH) {
|
|
|
|
|
cmb_println(print_info[PRINT_DFSR_VCATCH]);
|
|
|
|
|
}
|
|
|
|
|
if (regs.dfsr.bits.EXTERNAL) {
|
|
|
|
|
cmb_println(print_info[PRINT_DFSR_EXTERNAL]);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
#endif /* (CMB_CPU_PLATFORM_TYPE != CMB_CPU_ARM_CORTEX_M0) */
|
|
|
|
|
|
|
|
|
|
static uint32_t statck_del_fpu_regs(uint32_t fault_handler_lr, uint32_t sp) {
|
|
|
|
|
statck_has_fpu_regs = (fault_handler_lr & (1UL << 4)) == 0 ? true : false;
|
|
|
|
|
|
|
|
|
|
/* the stack has S0~S15 and FPSCR registers when statck_has_fpu_regs is true, double word align */
|
|
|
|
|
return statck_has_fpu_regs == true ? sp + sizeof(size_t) * 18 : sp;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* backtrace for fault
|
|
|
|
|
* @note only call once
|
|
|
|
|
*
|
|
|
|
|
* @param fault_handler_lr the LR register value on fault handler
|
|
|
|
|
* @param fault_handler_sp the stack pointer on fault handler
|
|
|
|
|
*/
|
|
|
|
|
void cm_backtrace_fault(uint32_t fault_handler_lr, uint32_t fault_handler_sp) {
|
|
|
|
|
uint32_t stack_start_addr = main_stack_start_addr, stack_size = main_stack_size, stack_pointer =
|
|
|
|
|
fault_handler_sp, saved_regs_addr = stack_pointer;
|
|
|
|
|
const char *regs_name[] = { "R0 ", "R1 ", "R2 ", "R3 ", "R12", "LR ", "PC ", "PSR" };
|
|
|
|
|
|
|
|
|
|
CMB_ASSERT(init_ok);
|
|
|
|
|
/* only call once */
|
|
|
|
|
CMB_ASSERT(!on_fault);
|
|
|
|
|
|
|
|
|
|
on_fault = true;
|
|
|
|
|
cm_backtrace_firmware_info();
|
|
|
|
|
|
|
|
|
|
/* delete saved R0~R3, R12, LR, PC, xPSR registers address */
|
|
|
|
|
stack_pointer += sizeof(size_t) * 8;
|
|
|
|
|
|
|
|
|
|
#if (CMB_CPU_PLATFORM_TYPE == CMB_CPU_ARM_CORTEX_M4) || (CMB_CPU_PLATFORM_TYPE == CMB_CPU_ARM_CORTEX_M7)
|
|
|
|
|
stack_pointer = statck_del_fpu_regs(fault_handler_lr, stack_pointer);
|
|
|
|
|
#endif
|
|
|
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#ifdef CMB_USING_DUMP_STACK_INFO
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#ifdef CMB_USING_OS_PLATFORM
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on_thread_before_fault = fault_handler_lr & (1UL << 2);
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/* check which stack was used before (MSP or PSP) */
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if (on_thread_before_fault) {
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cmb_println(print_info[PRINT_FAULT_ON_THREAD], get_cur_thread_name());
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saved_regs_addr = stack_pointer = __get_PSP();
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get_cur_thread_stack_info(stack_pointer, &stack_start_addr, &stack_size);
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/* delete saved R0~R3, R12, LR,PC,xPSR registers space */
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stack_pointer += sizeof(size_t) * 8;
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#if (CMB_CPU_PLATFORM_TYPE == CMB_CPU_ARM_CORTEX_M4) || (CMB_CPU_PLATFORM_TYPE == CMB_CPU_ARM_CORTEX_M7)
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stack_pointer = statck_del_fpu_regs(fault_handler_lr, stack_pointer);
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#endif
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dump_cur_thread_stack(stack_start_addr, stack_size, (uint32_t *) stack_pointer);
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} else {
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cmb_println(print_info[PRINT_FAULT_ON_HANDLER]);
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dump_main_stack(stack_start_addr, stack_size, (uint32_t *) stack_pointer);
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}
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#else
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/* bare metal(no OS) environment */
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cmb_println(print_info[PRINT_FAULT_ON_HANDLER]);
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dump_main_stack(stack_start_addr, stack_size, (uint32_t *) stack_pointer);
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#endif /* CMB_USING_OS_PLATFORM */
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#endif /* CMB_USING_DUMP_STACK_INFO */
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/* dump register */
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cmb_println(print_info[PRINT_REGS_TITLE]);
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regs.saved.r0 = ((uint32_t *)saved_regs_addr)[0]; // Register R0
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regs.saved.r1 = ((uint32_t *)saved_regs_addr)[1]; // Register R1
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regs.saved.r2 = ((uint32_t *)saved_regs_addr)[2]; // Register R2
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regs.saved.r3 = ((uint32_t *)saved_regs_addr)[3]; // Register R3
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regs.saved.r12 = ((uint32_t *)saved_regs_addr)[4]; // Register R12
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regs.saved.lr = ((uint32_t *)saved_regs_addr)[5]; // Link register LR
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regs.saved.pc = ((uint32_t *)saved_regs_addr)[6]; // Program counter PC
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regs.saved.psr.value = ((uint32_t *)saved_regs_addr)[7]; // Program status word PSR
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cmb_println(" %s: %08x %s: %08x %s: %08x %s: %08x", regs_name[0], regs.saved.r0,
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regs_name[1], regs.saved.r1,
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regs_name[2], regs.saved.r2,
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regs_name[3], regs.saved.r3);
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cmb_println(" %s: %08x %s: %08x %s: %08x %s: %08x", regs_name[4], regs.saved.r12,
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regs_name[5], regs.saved.lr,
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regs_name[6], regs.saved.pc,
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regs_name[7], regs.saved.psr.value);
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cmb_println("==============================================================");
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/* the Cortex-M0 is not support fault diagnosis */
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#if (CMB_CPU_PLATFORM_TYPE != CMB_CPU_ARM_CORTEX_M0)
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regs.syshndctrl.value = CMB_SYSHND_CTRL; // System Handler Control and State Register
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regs.mfsr.value = CMB_NVIC_MFSR; // Memory Fault Status Register
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regs.bfsr.value = CMB_NVIC_BFSR; // Bus Fault Status Register
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regs.bfar = CMB_NVIC_BFAR; // Bus Fault Manage Address Register
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regs.ufsr.value = CMB_NVIC_UFSR; // Usage Fault Status Register
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regs.hfsr.value = CMB_NVIC_HFSR; // Hard Fault Status Register
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regs.dfsr.value = CMB_NVIC_DFSR; // Debug Fault Status Register
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regs.afsr = CMB_NVIC_AFSR; // Auxiliary Fault Status Register
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fault_diagnosis();
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#endif
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print_call_stack(stack_pointer);
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}
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armink
9 years ago