zynq的栈监控与Xil_XXXAbortHandler问题排查

参考

UG585Address Map.csdn

stm32的栈监控与HardFault_Handler问题排查.csdn

崩溃现象

程序崩溃后会跳转到

ps7_cortexa9_0\standalone_domain\bsp\ps7_cortexa9_0\libsrc\standalone_v7_3\src\xil_exception.c

异常总览表

问题1

中断专用栈被破坏了

在中断里调用 AT_println(“ke %d”, code); 崩溃进入 Xil_DataAbortHandler
改成 AT_println(“ke”); 正常
主循环 注释 BspGetMillis 又不崩
把BspGetMillis 代码拷贝到主循环也不崩

解决

修改 链接脚本 lscript.ldx

# 修改_IRQ_STACK_SIZE=DEFINED(_IRQ_STACK_SIZE)? _IRQ_STACK_SIZE:1024;# 为_IRQ_STACK_SIZE=DEFINED(_IRQ_STACK_SIZE)? _IRQ_STACK_SIZE:4000;

lscript.ld

脚本工具

# 设置环境变量>$env:PATH="D:\Xilinx\Vitis\2020.2\gnu\aarch32\nt\gcc-arm-none-eabi\bin;"+$env:PATH# 查源码位置>arm-none-eabi-addr2line-ezynq_wave_app.elf 0x00109264 axi_test/src/main.cpp:44# 查符号表arm-none-eabi-nm zynq_wave_app.elf

# wsl有各种工具更方便>wsl $:arm-none-eabi-nm zynq_wave_app.elf|grepheap 0012d360 B _heap 0012f360 B _heap_end 0012d360 B _heap_start 0012d310 b heap.5721# 查看IRQ栈大小$: arm-none-eabi-nm zynq_wave_app.elf|grep_IRQ_STACK_SIZE 00000fa0 A _IRQ_STACK_SIZE# IRQ 栈地址 0x00131360：0x00132300 向下增长$: arm-none-eabi-nm zynq_wave_app.elf|grepirq 0012ccd8 b _ZL12s_pl_irq_cnt 00107448 t _ZL14pl_irq_handlerPv 00107a20 t _ZL16uart_irq_handlerPvmj 00132300 B __irq_stack 00131360 B _irq_stack_end

栈监控

这里以__irq_stack 栈为例

#defineIRQ_STACK_TOP((uint32_t*)0x00132300)#defineIRQ_STACK_END((uint32_t*)0x00131360)#defineWATERMARK0xA5A5A5A5volatileuint32_tg_irq_stack_max_usage=0;//irq 栈填充水印voidirq_stack_fill_watermark(void){uint32_t*p=IRQ_STACK_END;while(p<IRQ_STACK_TOP){*p++=WATERMARK;}}// irq 栈最大用量写入全局变量g_irq_stack_max_usagevoidirq_stack_update_usage(void){uint32_t*p=IRQ_STACK_END;while(p<IRQ_STACK_TOP){if(*p!=WATERMARK){break;}p++;}g_irq_stack_max_usage=(uint32_t)((uint8_t*)IRQ_STACK_TOP-(uint8_t*)p);}

测试

intmain(){staticuint32_ts_ms_tick=0;staticuint32_ts_pt_tick=0;irq_stack_fill_watermark();BspInit();at_init(Bsp_shell_write);AT_printf("ke");at_app_init();at_show_version();//启动PT协程Protothread::AllStart();while(1){uint32_tms=BspGetTickMs();BspGetMillis();if(ms-s_ms_tick>=10){s_ms_tick=ms;intlen=BspUartRead((uint8_t*)AT_m_buf,-1);at_import((uint8_t*)AT_m_buf,len,ms);}if(g_bt.key_flag){g_bt.key_flag=0;irq_stack_update_usage();AT_println("IRQ stack max usage = %lu bytes\n",g_irq_stack_max_usage);}}return0;}

打印

因为 _IRQ_STACK_SIZE 配置的只有1024 ,irq栈最大用量是1248
所以发生了各种奇怪现象

[18:52:51.763]收←◆ke268435456IRQ stack max usage=1248bytes