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LS10XX嵌入式系统设备树重构与Linux内核整合

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嵌入式系统中的LS10XX设备树是针对ARM架构设计的一种高效系统配置工具,用于简化Linux内核对硬件的管理。传统的Linux内核中,ARM相关板级信息分散在多个文件夹,如mach-xxx和plat-xxx,这导致了冗余代码和合并工作的复杂性。引入设备树技术后,这一问题得到了显著改善。 设备树(DeviceTree)作为一种硬件描述语言,将系统级别的信息如CPU类型、SoC内存配置、总线结构、外设连接和中断管理等整合在一个单一的、易于理解的树状结构中。这不仅减少了内核代码的重复,还使得硬件配置更加灵活和模块化。在Linux内核的架构中,设备树的实现如下: 1. ARM核心代码:主要存储在`arch/arm`目录下,负责处理通用的ARM核心功能。 2. ARM SoC核心架构代码:同样位于`arch/arm`,专注于SoC(System-on-Chip)的架构特性。 3. 周边外设模块驱动:存储在`drivers`文件夹,针对各种外设的驱动程序代码。 4. ARM SoC特定代码:以前在mach-xxx文件夹下的板级代码现在转移到设备树机制中,不再直接编写硬编码,而是通过设备树传递硬件的详细信息。 设备树的组成主要包括DTS(DeviceTree Source)和DTSI(DeviceTree Source Include)。DTS文件是设备树的主要形式,以`.dts`扩展名编写,它是ASCII文本格式,描述了特定ARM机器的详细配置,通常放置在`arch/arm/boot/dts/`目录下。DTSI文件则是用来重用和组织公共部分的,它类似于C语言中的头文件,减少代码冗余。 在启动过程中,BootLoader将设备树加载到内核,内核解析这些信息并创建相应的平台设备和SPI设备。同时,设备树提供的内存、中断等资源被分配给这些设备,进一步优化了系统的资源管理和设备驱动的集成。这种设备树的使用方法极大地提升了嵌入式系统的灵活性和维护效率,是现代嵌入式Linux开发的重要组成部分。

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* 正在执行任务: & 'make' -f laide.makefile 开始构建... /usr/bin/make -C build clean make[1]: 进入目录“/d/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/build” rm -rf *.o *.elf *.map *.bin *.s *.a make[1]: 离开目录“/d/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/build” /usr/bin/make -C build all make[1]: 进入目录“/d/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/build” gcc -std=gnu99 -O0 -ffunction-sections -fdata-sections -msoft-float -fsched-pressure -fno-builtin -D LS1C102 -I/d/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/drivers/include -I/d/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/drivers/public -I/d/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/drivers/private/ls1c102 -I/d/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system -I/d/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/src -c -o start.o /d/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S: Assembler messages: D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:23: Warning: .type pseudo-op used outside of .def/.endef: ignored. D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:23: Error: junk at end of line, first unrecognized character is `_' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:27: Error: no such instruction: `move $r13,$r0' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:28: Error: no such instruction: `b LoopCopyDataInit' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:30: Error: no such instruction: `la.abs $r15,_sidata' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:31: Error: no such instruction: `add.w $r16,$r15,$r13' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:32: Error: no such instruction: `ld.w $r15,$r16,0x0' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:33: Error: no such instruction: `add.w $r16,$r12,$r13' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:34: Error: no such instruction: `st.w $r15,$r16,0x0' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:35: Error: no such instruction: `addi.w $r13,$r13,0x4' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:37: Error: no such instruction: `la.abs $r12,_sdata' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:38: Error: no such instruction: `la.abs $r15,_edata' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:39: Error: no such instruction: `add.w $r14,$r12,$r13' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:40: Error: no such instruction: `bne $r14,$r15,CopyDataInit' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:43: Error: no such instruction: `la.abs $r12,_sbss' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:44: Error: no such instruction: `la.abs $r13,_ebss' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:45: Error: no such instruction: `beq $r13,$r12,cpu_init_start' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:47: Error: no such instruction: `st.w $r0,$r12,0' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:48: Error: no such instruction: `addi.w $r12,$r12,4' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:49: Error: no such instruction: `bne $r13,$r12,LoopFillZerobss' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:55: Error: no such instruction: `li.w $r12,0x1c001000' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:56: Error: no such instruction: `csrwr $r12,0xc' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:57: Error: no such instruction: `li.w $r12,(0<<16)|(0x0000<<0)' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:58: Error: no such instruction: `csrwr $r12,0x4' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:60: Error: no such instruction: `li.w $r12,0x1fff' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:61: Error: no such instruction: `csrxchg $r12,$r12,0x4' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:63: Error: no such instruction: `li.w $r12,(0xfff1ffff)' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:64: Error: no such instruction: `csrwr $r12,0x191' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:66: Error: no such instruction: `li.w $r12,(0x76503210)' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:67: Error: no such instruction: `csrwr $r12,0x190' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:69: Error: no such instruction: `li.w $r12,0x8' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:70: Error: no such instruction: `csrxchg $r0,$r12,0x0' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:73: Error: no such instruction: `li.w $r3,(0x80002000-132)' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:75: Error: no such instruction: `bl bsp_init' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:77: Error: no such instruction: `jirl $r0,$r1,0' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:82: Error: no such instruction: `idle 0' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:83: Error: no such instruction: `jr $r1' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:88: Warning: .type pseudo-op used outside of .def/.endef: ignored. D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:88: Error: junk at end of line, first unrecognized character is `m' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:90: Error: no such instruction: `li.w $r12,0x3ff80' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:91: Error: no such instruction: `li.w $r13,0xbfe60000' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:92: Error: at most 2 immediate operands are allowed D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:93: Error: no such instruction: `ori $r15,$r13,0x18' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:94: Error: no such instruction: `addi.w $r16,$r0,0x10' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:95: Error: no such instruction: `li.w $r14,0xa0000000' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:96: Error: no such instruction: `st.w $r16,$r15,0' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:97: Error: at most 2 immediate operands are allowed D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:98: Error: no such instruction: `st.w $r14,$r13,0' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:99: Error: no such instruction: `li.w $r15,0x40000000' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:100: Error: no such instruction: `li.w $r14,0x5aa555aa' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:101: Error: no such instruction: `st.w $r15,$r13,0' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:102: Error: no such instruction: `li.w $r15,0xe0000000' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:103: Error: no such instruction: `st.w $r14,$r4,0' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:104: Error: at most 2 immediate operands are allowed D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:105: Error: no such instruction: `st.w $r12,$r13,0' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:107: Error: no such instruction: `jirl $r0,$r1,0' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:113: Error: no such instruction: `csrwr $r21,0x31' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:113: Error: no such instruction: `li.w $r21,(0x80002000)' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:113: Error: no such instruction: `st.w $r12,$r21,-0x4' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:113: Error: no such instruction: `st.w $r13,$r21,-0x8' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:113: Error: no such instruction: `st.w $r14,$r21,-0xc' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:113: Error: no such instruction: `st.w $r15,$r21,-0x10' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:113: Error: no such instruction: `st.w $r16,$r21,-0x14' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:113: Error: no such instruction: `st.w $r17,$r21,-0x18' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:113: Error: no such instruction: `st.w $r18,$r21,-0x1c' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:113: Error: no such instruction: `st.w $r19,$r21,-0x20' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:113: Error: no such instruction: `st.w $r20,$r21,-0x24' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:113: Error: no such instruction: `st.w $r4,$r21,-0x4c' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:113: Error: no such instruction: `st.w $r5,$r21,-0x50' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:113: Error: no such instruction: `st.w $r6,$r21,-0x54' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:113: Error: no such instruction: `st.w $r7,$r21,-0x58' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:113: Error: no such instruction: `st.w $r8,$r21,-0x5c' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:113: Error: no such instruction: `st.w $r9,$r21,-0x60' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:113: Error: no such instruction: `st.w $r10,$r21,-0x64' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:113: Error: no such instruction: `st.w $r11,$r21,-0x68' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:113: Error: no such instruction: `st.w $r1,$r21,-0x6c' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:113: Error: no such instruction: `st.w $r3,$r21,-0x70' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:114: Error: no such instruction: `csrrd $r12,0x5' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:115: Error: no such instruction: `andi $r13,$r12,(0xbbc)' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:116: Error: no such instruction: `beqz $r13,exception_core_check' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:120: Error: no such instruction: `andi $r13,$r12,0x4' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:121: Error: no such instruction: `bnez $r13,wake_label' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:123: Error: no such instruction: `andi $r13,$r12,0x8' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:124: Error: no such instruction: `bnez $r13,touch_label' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:126: Error: no such instruction: `andi $r13,$r12,0x10' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:127: Error: no such instruction: `bnez $r13,uart2_label' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:129: Error: no such instruction: `andi $r13,$r12,0x20' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:130: Error: no such instruction: `bnez $r13,bcc_label' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:132: Error: no such instruction: `andi $r13,$r12,0x80' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:133: Error: no such instruction: `bnez $r13,exint_label' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:135: Error: no such instruction: `andi $r13,$r12,0x800' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:136: Error: no such instruction: `bnez $r13,timer_label' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:139: Error: no such instruction: `bl TIMER_WAKE_INT' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:140: Error: no such instruction: `b exception_exit' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:143: Error: no such instruction: `bl TOUCH' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:144: Error: no such instruction: `b exception_exit' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:147: Error: no such instruction: `bl UART2_INT' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:148: Error: no such instruction: `b exception_exit' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:151: Error: no such instruction: `bl BAT_FAIL' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:152: Error: no such instruction: `b exception_exit' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:155: Error: no such instruction: `bl ext_handler' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:156: Error: no such instruction: `b exception_exit' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:159: Error: no such instruction: `bl TIMER_HANDLER' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:160: Error: no such instruction: `b exception_exit' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:207: Error: no such instruction: `andi $r13,$r12,(0x40)' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:208: Error: no such instruction: `beqz $r13,exception_exit' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:209: Error: no such instruction: `bl intc_handler' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:210: Error: no such instruction: `b exception_exit' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:213: Error: no such instruction: `li.w $r21,(0x80002000)' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:213: Error: no such instruction: `ld.w $r12,$r21,-0x4' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:213: Error: no such instruction: `ld.w $r13,$r21,-0x8' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:213: Error: no such instruction: `ld.w $r14,$r21,-0xc' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:213: Error: no such instruction: `ld.w $r15,$r21,-0x10' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:213: Error: no such instruction: `ld.w $r16,$r21,-0x14' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:213: Error: no such instruction: `ld.w $r17,$r21,-0x18' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:213: Error: no such instruction: `ld.w $r18,$r21,-0x1c' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:213: Error: no such instruction: `ld.w $r19,$r21,-0x20' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:213: Error: no such instruction: `ld.w $r20,$r21,-0x24' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:213: Error: no such instruction: `ld.w $r4,$r21,-0x4c' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:213: Error: no such instruction: `ld.w $r5,$r21,-0x50' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:213: Error: no such instruction: `ld.w $r6,$r21,-0x54' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:213: Error: no such instruction: `ld.w $r7,$r21,-0x58' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:213: Error: no such instruction: `ld.w $r8,$r21,-0x5c' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:213: Error: no such instruction: `ld.w $r9,$r21,-0x60' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:213: Error: no such instruction: `ld.w $r10,$r21,-0x64' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:213: Error: no such instruction: `ld.w $r11,$r21,-0x68' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:213: Error: no such instruction: `ld.w $r1,$r21,-0x6c' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:213: Error: no such instruction: `ld.w $r3,$r21,-0x70' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:213: Error: no such instruction: `csrrd $r21,0x31' D:/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/system/start.S:214: Error: no such instruction: `ertn' make[1]: *** [Makefile:99:start.o] 错误 1 make[1]: 离开目录“/d/LX1C/01_LS1C_LED_Test/01_LS1C_LED_Test/build” make: *** [laide.makefile:35:build/1c102_demo.bin] 错误 2 * 终端进程“C:\WINDOWS\System32\WindowsPowerShell\v1.0\powershell.exe -Command & 'make' -f laide.makefile ”已终止,退出代码: 1。 * 终端将被任务重用,按任意键关闭。

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