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CmBacktrace/cm_backtrace/cm_backtrace.c

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/*
* This file is part of the CmBacktrace Library.
*
* Copyright (c) 2016, Armink, <armink.ztl@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* 'Software'), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* Function: Initialize function and other general function.
* Created on: 2016-12-15
*/
#include <cm_backtrace.h>
#include <stdbool.h>
#include <string.h>
#include <stdio.h>
#if defined(__CC_ARM)
#define SECTION_START(_name_) _name_##$$Base
#define SECTION_END(_name_) _name_##$$Limit
#define IMAGE_SECTION_START(_name_) Image$$##_name_##$$Base
#define IMAGE_SECTION_END(_name_) Image$$##_name_##$$Limit
#define CSTACK_BLOCK_START(_name_) SECTION_START(_name_)
#define CSTACK_BLOCK_END(_name_) SECTION_END(_name_)
#define CODE_SECTION_START(_name_) IMAGE_SECTION_START(_name_)
#define CODE_SECTION_END(_name_) IMAGE_SECTION_END(_name_)
extern const int CODE_SECTION_START(CMB_CODE_SECTION_NAME);
extern const int CODE_SECTION_END(CMB_CODE_SECTION_NAME);
extern const int CSTACK_BLOCK_START(CMB_CSTACK_BLOCK_NAME);
extern const int CSTACK_BLOCK_END(CMB_CSTACK_BLOCK_NAME);
//TODO <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
#elif defined(__ICCARM__)
#pragma section=CMB_CSTACK_BLOCK_NAME
#pragma section=CMB_CODE_SECTION_NAME
#elif defined(__GNUC__)
#error "not implemented, I hope you can do this"
//TODO <20><>ʵ<EFBFBD><CAB5>
#else
#error "not supported compiler"
#endif
enum {
PRINT_FIRMWARE_INFO,
PRINT_ASSERT_ON_THREAD,
PRINT_ASSERT_ON_HANDLER,
PRINT_THREAD_STACK_INFO,
PRINT_MAIN_STACK_INFO,
PRINT_CALL_STACK_INFO,
PRINT_CALL_STACK_ERR,
PRINT_FAULT_ON_THREAD,
PRINT_FAULT_ON_HANDLER,
PRINT_REGS_TITLE,
PRINT_HFSR_VECTBL,
PRINT_MFSR_IACCVIOL,
PRINT_MFSR_DACCVIOL,
PRINT_MFSR_MUNSTKERR,
PRINT_MFSR_MSTKERR,
PRINT_MFSR_MLSPERR,
PRINT_BFSR_IBUSERR,
PRINT_BFSR_PRECISERR,
PRINT_BFSR_IMPREISERR,
PRINT_BFSR_UNSTKERR,
PRINT_BFSR_STKERR,
PRINT_BFSR_LSPERR,
PRINT_UFSR_UNDEFINSTR,
PRINT_UFSR_INVSTATE,
PRINT_UFSR_INVPC,
PRINT_UFSR_NOCP,
PRINT_UFSR_UNALIGNED,
PRINT_UFSR_DIVBYZERO,
PRINT_DFSR_HALTED,
PRINT_DFSR_BKPT,
PRINT_DFSR_DWTTRAP,
PRINT_DFSR_VCATCH,
PRINT_DFSR_EXTERNAL,
};
static const char *print_info[] = {
#if (CMB_PRINT_LANGUAGE == CMB_PRINT_LANGUAGE_ENGLISH)
[PRINT_FIRMWARE_INFO] = {"Firmware name: %s, hardware version: %s, software version: %s"},
[PRINT_ASSERT_ON_THREAD] = {"Assert on thread %s"},
[PRINT_ASSERT_ON_HANDLER] = {"Assert on interrupt or bare metal(no OS) environment"},
[PRINT_THREAD_STACK_INFO] = {"===== Thread stack information ====="},
[PRINT_MAIN_STACK_INFO] = {"====== Main stack information ======"},
[PRINT_CALL_STACK_INFO] = {"Show more call stack info by run: addr2line -e %s%s -a -f %.*s"},
[PRINT_CALL_STACK_ERR] = {"Dump call stack has an error"},
[PRINT_FAULT_ON_THREAD] = {"Fault on thread %s"},
[PRINT_FAULT_ON_HANDLER] = {"Fault on interrupt or bare metal(no OS) environment"},
[PRINT_REGS_TITLE] = {"=================== Registers information ===================="},
[PRINT_HFSR_VECTBL] = {"Hard fault is caused by failed vector fetch"},
[PRINT_MFSR_IACCVIOL] = {"Memory management fault is caused by instruction access violation"},
[PRINT_MFSR_DACCVIOL] = {"Memory management fault is caused by data access violation"},
[PRINT_MFSR_MUNSTKERR] = {"Memory management fault is caused by unstacking error"},
[PRINT_MFSR_MSTKERR] = {"Memory management fault is caused by stacking error"},
[PRINT_MFSR_MLSPERR] = {"Memory management fault is caused by floating-point lazy state preservation"},
[PRINT_BFSR_IBUSERR] = {"Bus fault is caused by instruction access violation"},
[PRINT_BFSR_PRECISERR] = {"Bus fault is caused by precise data access violation"},
[PRINT_BFSR_IMPREISERR] = {"Bus fault is caused by imprecise data access violation"},
[PRINT_BFSR_UNSTKERR] = {"Bus fault is caused by unstacking error"},
[PRINT_BFSR_STKERR] = {"Bus fault is caused by stacking error"},
[PRINT_BFSR_LSPERR] = {"Bus fault is caused by floating-point lazy state preservation"},
[PRINT_UFSR_UNDEFINSTR] = {"Usage fault is caused by attempts to execute an undefined instruction"},
[PRINT_UFSR_INVSTATE] = {"Usage fault is caused by attempts to switch to an invalid state (e.g., ARM)"},
[PRINT_UFSR_INVPC] = {"Usage fault is caused by attempts to do an exception with a bad value in the EXC_RETURN number"},
[PRINT_UFSR_NOCP] = {"Usage fault is caused by attempts to execute a coprocessor instruction"},
[PRINT_UFSR_UNALIGNED] = {"Usage fault is caused by indicates that an unaligned access fault has taken place"},
[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)"},
[PRINT_DFSR_HALTED] = {"Debug fault is caused by halt requested in NVIC"},
[PRINT_DFSR_BKPT] = {"Debug fault is caused by BKPT instruction executed"},
[PRINT_DFSR_DWTTRAP] = {"Debug fault is caused by DWT match occurred"},
[PRINT_DFSR_VCATCH] = {"Debug fault is caused by Vector fetch occurred"},
[PRINT_DFSR_EXTERNAL] = {"Debug fault is caused by EDBGRQ signal asserted"},
#elif (CMB_PRINT_LANGUAGE == CMB_PRINT_LANUUAGE_CHINESE)
[PRINT_FIRMWARE_INFO] = {"<EFBFBD>̼<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƣ<EFBFBD>%s<><73>Ӳ<EFBFBD><D3B2><EFBFBD><EFBFBD>ţ<EFBFBD>%s<><73><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ţ<EFBFBD>%s"},
[PRINT_ASSERT_ON_THREAD] = {"<EFBFBD><EFBFBD><EFBFBD>߳<EFBFBD>(%s)<29>з<EFBFBD><D0B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"},
[PRINT_ASSERT_ON_HANDLER] = {"<EFBFBD><EFBFBD><EFBFBD>жϻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"},
[PRINT_THREAD_STACK_INFO] = {"=========== <20>̶߳<DFB3>ջ<EFBFBD><D5BB>Ϣ ==========="},
[PRINT_MAIN_STACK_INFO] = {"============ <20><><EFBFBD><EFBFBD>ջ<EFBFBD><D5BB>Ϣ ============"},
[PRINT_CALL_STACK_INFO] = {"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ջ<EFBFBD><EFBFBD>Ϣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD>addr2line -e %s%s -a -f %.*s"},
[PRINT_CALL_STACK_ERR] = {"<EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ջʧ<EFBFBD><EFBFBD>"},
[PRINT_FAULT_ON_THREAD] = { "<EFBFBD><EFBFBD><EFBFBD>߳<EFBFBD>(%s)<29>з<EFBFBD><D0B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>" },
[PRINT_FAULT_ON_HANDLER] = {"<EFBFBD><EFBFBD><EFBFBD>жϻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"},
[PRINT_REGS_TITLE] = {"========================= <20>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD>Ϣ ========================="},
[PRINT_HFSR_VECTBL] = {"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>"},
[PRINT_MFSR_IACCVIOL] = {"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ<EFBFBD>Ӳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡָ<EFBFBD><EFBFBD>"},
[PRINT_MFSR_DACCVIOL] = {"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ<EFBFBD>Ӳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><EFBFBD><EFBFBD><EFBFBD>"},
[PRINT_MFSR_MUNSTKERR] = {"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD>򣺳<EFBFBD>ջʱ<EFBFBD><EFBFBD>ͼ<EFBFBD><EFBFBD><EFBFBD>ʲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"},
[PRINT_MFSR_MSTKERR] = {"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ջʱ<EFBFBD><EFBFBD>ͼ<EFBFBD><EFBFBD><EFBFBD>ʲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"},
[PRINT_MFSR_MLSPERR] = {"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD>򣺶<EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"},
[PRINT_BFSR_IBUSERR] = {"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߴ<EFBFBD><EFBFBD><EFBFBD>"},
[PRINT_BFSR_PRECISERR] = {"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD>򣺾<EFBFBD>ȷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߴ<EFBFBD><EFBFBD><EFBFBD>"},
[PRINT_BFSR_IMPREISERR] = {"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD>򣺲<EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߴ<EFBFBD><EFBFBD><EFBFBD>"},
[PRINT_BFSR_UNSTKERR] = {"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD>򣺳<EFBFBD>ջʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"},
[PRINT_BFSR_STKERR] = {"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ջʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"},
[PRINT_BFSR_LSPERR] = {"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD>򣺶<EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"},
[PRINT_UFSR_UNDEFINSTR] = {"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>÷<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼִ<EFBFBD><EFBFBD>δ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>"},
[PRINT_UFSR_INVSTATE] = {"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>÷<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ<EFBFBD>л<EFBFBD><EFBFBD><EFBFBD> ARM ״̬"},
[PRINT_UFSR_INVPC] = {"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>÷<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"},
[PRINT_UFSR_NOCP] = {"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>÷<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼִ<EFBFBD><EFBFBD>Э<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>"},
[PRINT_UFSR_UNALIGNED] = {"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>÷<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼִ<EFBFBD>зǶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"},
[PRINT_UFSR_DIVBYZERO] = {"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>÷<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼִ<EFBFBD>г<EFBFBD> 0 <20><><EFBFBD><EFBFBD>"},
[PRINT_DFSR_HALTED] = {"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>NVIC ͣ<><CDA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"},
[PRINT_DFSR_BKPT] = {"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD><EFBFBD> BKPT ָ<><D6B8>"},
[PRINT_DFSR_DWTTRAP] = {"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƥ<EFBFBD><EFBFBD>"},
[PRINT_DFSR_VCATCH] = {"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD>򣺷<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"},
[PRINT_DFSR_EXTERNAL] = {"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ⲿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"},
#else
#error "CMB_PRINT_LANGUAGE defined error in 'cmb_cfg.h'"
#endif
};
static char fw_name[CMB_NAME_MAX] = {0};
static char hw_ver[CMB_NAME_MAX] = {0};
static char sw_ver[CMB_NAME_MAX] = {0};
static uint32_t main_stack_start_addr = 0;
static size_t main_stack_size = 0;
static uint32_t code_start_addr = 0;
static size_t code_size = 0;
static bool init_ok = false;
static char call_stack_info[CMB_CALL_STACK_MAX_DEPTH * (8 + 1)] = { 0 };
static bool on_fault = false;
static struct cmb_hard_fault_regs regs;
#if (CMB_CPU_PLATFORM_TYPE == CMB_CPU_ARM_CORTEX_M4) || (CMB_CPU_PLATFORM_TYPE == CMB_CPU_ARM_CORTEX_M7)
static bool statck_has_fpu_regs = false;
#endif
#ifdef CMB_USING_OS_PLATFORM
static bool on_thread_before_fault = false;
#endif
/**
* library initialize
*/
void cm_backtrace_init(const char *firmware_name, const char *hardware_ver, const char *software_ver) {
strncpy(fw_name, firmware_name, CMB_NAME_MAX);
strncpy(hw_ver, hardware_ver, CMB_NAME_MAX);
strncpy(sw_ver, software_ver, CMB_NAME_MAX);
#if defined(__CC_ARM)
main_stack_start_addr = (uint32_t)&CODE_SECTION_START(CMB_CODE_SECTION_NAME);
main_stack_size = (uint32_t)&CODE_SECTION_END(CMB_CODE_SECTION_NAME) - main_stack_start_addr;
code_start_addr = (uint32_t)&CSTACK_BLOCK_START(CMB_CSTACK_BLOCK_NAME);
code_size = (uint32_t)&CSTACK_BLOCK_END(CMB_CSTACK_BLOCK_NAME) - code_start_addr;
//TODO <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
#elif defined(__ICCARM__)
main_stack_start_addr = (uint32_t)__section_begin(CMB_CSTACK_BLOCK_NAME);
main_stack_size = (uint32_t)__section_end(CMB_CSTACK_BLOCK_NAME) - main_stack_start_addr;
code_start_addr = (uint32_t)__section_begin(CMB_CODE_SECTION_NAME);
code_size = (uint32_t)__section_end(CMB_CODE_SECTION_NAME) - code_start_addr;
#elif defined(__GNUC__)
#error "not implemented, I hope you can do this"
//TODO <20><>ʵ<EFBFBD><CAB5>
#else
#error "not supported compiler"
#endif
init_ok = true;
}
/**
* print firmware information, such as: firmware name, hardware version, software version
*/
void cm_backtrace_firmware_info(void) {
cmb_println(print_info[PRINT_FIRMWARE_INFO], fw_name, hw_ver, sw_ver);
}
#ifdef CMB_USING_OS_PLATFORM
/**
* Get current thread stack information
*
* @param sp stack current pointer
* @param start_addr stack start address
* @param size stack size
*/
static void get_cur_thread_stack_info(uint32_t sp, uint32_t *start_addr, size_t *size) {
CMB_ASSERT(start_addr);
CMB_ASSERT(size);
#if (CMB_OS_PLATFORM_TYPE == CMB_OS_PLATFORM_RTT)
*start_addr = (uint32_t) rt_thread_self()->stack_addr;
*size = rt_thread_self()->stack_size;
#elif (CMB_OS_PLATFORM_TYPE == CMB_OS_PLATFORM_UCOSII)
extern OS_TCB *OSTCBCur;
#if OS_TASK_PROFILE_EN > 0
*start_addr = (uint32_t) OSTCBCur->OSTCBStkBase;
*size = (sp + OSTCBCur->OSTCBStkUsed) - *start_addr;
#else
#error "OS_TASK_PROFILE_EN isn't enable in 'OS_CFG.H'"
#endif /* OS_TASK_PROFILE_EN > 0 */
//TODO <20><><EFBFBD><EFBFBD>
#elif (CMB_OS_PLATFORM_TYPE == CMB_OS_PLATFORM_UCOSIII)
#error "not implemented, I hope you can do this"
//TODO <20><>ʵ<EFBFBD><CAB5>
#elif (CMB_OS_PLATFORM_TYPE == CMB_OS_PLATFORM_FREERTOS)
#error "not implemented, I hope you can do this"
//TODO <20><>ʵ<EFBFBD><CAB5>
#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 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
#elif (CMB_OS_PLATFORM_TYPE == CMB_OS_PLATFORM_UCOSIII)
#error "not implemented, I hope you can do this"
//TODO <20><>ʵ<EFBFBD><CAB5>
#elif (CMB_OS_PLATFORM_TYPE == CMB_OS_PLATFORM_FREERTOS)
#error "not implemented, I hope you can do this"
//TODO <20><>ʵ<EFBFBD><CAB5>
#endif
}
#ifdef CMB_USING_DUMP_STACK_INFO
/**
* 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_DUMP_STACK_INFO */
#endif /* CMB_USING_OS_PLATFORM */
#ifdef CMB_USING_DUMP_STACK_INFO
/**
* 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("====================================");
}
#endif /* CMB_USING_DUMP_STACK_INFO */
/**
* 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;
size_t depth = 0;
if (on_fault) {
/* first depth is PC */
buffer[depth++] = regs.saved.pc;
#ifdef CMB_USING_OS_PLATFORM
/* program is running on thread before fault */
if (on_thread_before_fault) {
get_cur_thread_stack_info(sp, &stack_start_addr, &stack_size);
}
} else {
/* OS environment */
if (__get_SP() == __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) {
CMB_ASSERT(init_ok);
#ifdef CMB_USING_OS_PLATFORM
uint32_t cur_stack_pointer = __get_SP();
#endif
cmb_println("");
cm_backtrace_firmware_info();
#ifdef CMB_USING_OS_PLATFORM
/* OS environment */
if (cur_stack_pointer == __get_MSP()) {
cmb_println(print_info[PRINT_ASSERT_ON_HANDLER]);
#ifdef CMB_USING_DUMP_STACK_INFO
dump_main_stack(main_stack_start_addr, main_stack_size, (uint32_t *) sp);
#endif /* CMB_USING_DUMP_STACK_INFO */
} else if (cur_stack_pointer == __get_PSP()) {
cmb_println(print_info[PRINT_ASSERT_ON_THREAD], get_cur_thread_name());
#ifdef CMB_USING_DUMP_STACK_INFO
uint32_t stack_start_addr, stack_size;
get_cur_thread_stack_info(sp, &stack_start_addr, &stack_size);
dump_cur_thread_stack(stack_start_addr, stack_size, (uint32_t *) sp);
#endif /* CMB_USING_DUMP_STACK_INFO */
}
#else
/* bare metal(no OS) environment */
#ifdef CMB_USING_DUMP_STACK_INFO
dump_main_stack(main_stack_start_addr, main_stack_size, (uint32_t *) sp);
#endif /* CMB_USING_DUMP_STACK_INFO */
#endif /* CMB_USING_OS_PLATFORM */
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) */
#if (CMB_CPU_PLATFORM_TYPE == CMB_CPU_ARM_CORTEX_M4) || (CMB_CPU_PLATFORM_TYPE == CMB_CPU_ARM_CORTEX_M7)
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;
}
#endif
/**
* 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_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;
cmb_println("");
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
#ifdef CMB_USING_DUMP_STACK_INFO
uint32_t stack_start_addr = main_stack_start_addr, stack_size = main_stack_size;
#ifdef CMB_USING_OS_PLATFORM
on_thread_before_fault = fault_handler_lr & (1UL << 2);
/* check which stack was used before (MSP or PSP) */
if (on_thread_before_fault) {
cmb_println(print_info[PRINT_FAULT_ON_THREAD], get_cur_thread_name());
saved_regs_addr = stack_pointer = __get_PSP();
get_cur_thread_stack_info(stack_pointer, &stack_start_addr, &stack_size);
/* delete saved R0~R3, R12, LR,PC,xPSR registers space */
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
dump_cur_thread_stack(stack_start_addr, stack_size, (uint32_t *) stack_pointer);
} else {
cmb_println(print_info[PRINT_FAULT_ON_HANDLER]);
dump_main_stack(stack_start_addr, stack_size, (uint32_t *) stack_pointer);
}
#else
/* bare metal(no OS) environment */
cmb_println(print_info[PRINT_FAULT_ON_HANDLER]);
dump_main_stack(stack_start_addr, stack_size, (uint32_t *) stack_pointer);
#endif /* CMB_USING_OS_PLATFORM */
#endif /* CMB_USING_DUMP_STACK_INFO */
/* dump register */
cmb_println(print_info[PRINT_REGS_TITLE]);
regs.saved.r0 = ((uint32_t *)saved_regs_addr)[0]; // Register R0
regs.saved.r1 = ((uint32_t *)saved_regs_addr)[1]; // Register R1
regs.saved.r2 = ((uint32_t *)saved_regs_addr)[2]; // Register R2
regs.saved.r3 = ((uint32_t *)saved_regs_addr)[3]; // Register R3
regs.saved.r12 = ((uint32_t *)saved_regs_addr)[4]; // Register R12
regs.saved.lr = ((uint32_t *)saved_regs_addr)[5]; // Link register LR
regs.saved.pc = ((uint32_t *)saved_regs_addr)[6]; // Program counter PC
regs.saved.psr.value = ((uint32_t *)saved_regs_addr)[7]; // Program status word PSR
cmb_println(" %s: %08x %s: %08x %s: %08x %s: %08x", regs_name[0], regs.saved.r0,
regs_name[1], regs.saved.r1,
regs_name[2], regs.saved.r2,
regs_name[3], regs.saved.r3);
cmb_println(" %s: %08x %s: %08x %s: %08x %s: %08x", regs_name[4], regs.saved.r12,
regs_name[5], regs.saved.lr,
regs_name[6], regs.saved.pc,
regs_name[7], regs.saved.psr.value);
cmb_println("==============================================================");
/* the Cortex-M0 is not support fault diagnosis */
#if (CMB_CPU_PLATFORM_TYPE != CMB_CPU_ARM_CORTEX_M0)
regs.syshndctrl.value = CMB_SYSHND_CTRL; // System Handler Control and State Register
regs.mfsr.value = CMB_NVIC_MFSR; // Memory Fault Status Register
regs.bfsr.value = CMB_NVIC_BFSR; // Bus Fault Status Register
regs.bfar = CMB_NVIC_BFAR; // Bus Fault Manage Address Register
regs.ufsr.value = CMB_NVIC_UFSR; // Usage Fault Status Register
regs.hfsr.value = CMB_NVIC_HFSR; // Hard Fault Status Register
regs.dfsr.value = CMB_NVIC_DFSR; // Debug Fault Status Register
regs.afsr = CMB_NVIC_AFSR; // Auxiliary Fault Status Register
fault_diagnosis();
#endif
print_call_stack(stack_pointer);
}