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本文介紹在Ubuntu20.04下, VSCode中如何設(shè)置對(duì) HC32L110 進(jìn)行 debug
原文: https://www.cnblogs.com/milton/p/16653827.html
倉(cāng)庫(kù)地址: https://github.com/IOsetting/hc32l110-template
如果轉(zhuǎn)載, 請(qǐng)注明出處.
環(huán)境說(shuō)明
本文使用的軟硬件環(huán)境已經(jīng)在前面介紹
硬件
基于 HC32L110 系列MCU的開(kāi)發(fā)板
JLink OB
軟件
Ubuntu20.04
VSCode
配置步驟
安裝配置 Cortex-Debug
在VSCode的插件中, 搜索安裝Cortex-Debug
在VSCode中, 切換到Run And Debug, 點(diǎn)擊上方的 Add Configuration, 會(huì)在 .vscode 目錄下的 launch.json (如果沒(méi)有會(huì)自動(dòng)創(chuàng)建)中添加配置, 需要增加對(duì)應(yīng)的配置信息
- "configurations": [
- {
- "name": "Cortex Debug",
- "cwd": "${workspaceFolder}",
- "executable": "${workspaceFolder}/Build/app.elf",
- "request": "launch", // 可以是launch或attach, 后者表示運(yùn)行中接入, 前者會(huì)執(zhí)行前置任務(wù)并重啟
- "type": "cortex-debug",
- "runToEntryPoint": "main",
- "servertype": "jlink",
- "device": "HC32L110X4", // 如果是32K的版本, 需要修改為 HC32L110X6
- "interface": "swd",
- "runToMain": true, // false則從 reset handler 開(kāi)始停留
- "preLaunchTask": "build", // 根據(jù) tasks.json 中配置的任務(wù)填寫,
- // "preLaunchCommands": ["Build all"], // 如果不使用 preLaunchTask, 可以用這個(gè)參數(shù)指定命令行命令
- "svdFile": "", // svd 用于觀察外設(shè)
- "showDevDebugOutput": "vscode", // 輸出的日志級(jí)別, parsed:解析后的內(nèi)容, raw:直接輸出, vscode:包含scode調(diào)用和raw
- "swoConfig":
- {
- "enabled": true,
- "cpuFrequency": 24000000,
- "swoFrequency": 4000000,
- "source": "probe",
- "decoders":
- [
- {
- "label": "ITM port 0 output",
- "type": "console",
- "port": 0,
- "showOnStartup": true,
- "encoding": "ascii"
- }
- ]
- }
- }
- ]
具體的配置項(xiàng)含義, 可以參考 Debug Attributes
同時(shí)在 .vscode/settings.json 中增加以下配置, 如果文件不存在則創(chuàng)建. 路徑根據(jù)自己的環(huán)境修改
- {
- "cortex-debug.gdbPath": "/opt/gcc-arm/gcc-arm-11.2-2022.02-x86_64-arm-none-eabi/bin/arm-none-eabi-gdb",
- "cortex-debug.JLinkGDBServerPath": "/opt/SEGGER/JLink/JLinkGDBServerCLExe",
- }
修改 rules.mk
在rules.mk中開(kāi)啟debug, 涉及到兩處, OPT要使用-O0, 表示不執(zhí)行任何優(yōu)化. 使用優(yōu)化后代碼中的部分變量在編譯后會(huì)被丟棄無(wú)法跟蹤
OPT ?= -O0
在CFLAGS中增加gdb輸出
CFLAGS += -g -gdwarf-2 # original: -g
這樣編譯后, 尺寸會(huì)比原先大不少
Ubuntu20.04下遇到的問(wèn)題
以上配置后, 點(diǎn)擊 Run And Debug 中的綠色運(yùn)行圖標(biāo)應(yīng)該就能啟動(dòng)Debug, 但是可能在看到以下輸出后就沒(méi)有反應(yīng)了
- Reading symbols from /opt/gcc-arm/gcc-arm-11.2-2022.02-x86_64-arm-none-eabi/bin/arm-none-eabi-objdump --syms -C -h -w /home/milton/Stm32Projects/hc32_workspace/hc32l110-template/Build/app.elf
- Reading symbols from /opt/gcc-arm/gcc-arm-11.2-2022.02-x86_64-arm-none-eabi/bin/arm-none-eabi-nm --defined-only -S -l -C -p /home/milton/Stm32Projects/hc32_workspace/hc32l110-template/Build/app.elf
- Launching GDB: /opt/gcc-arm/gcc-arm-11.2-2022.02-x86_64-arm-none-eabi/bin/arm-none-eabi-gdb -q --interpreter=mi2
- 1-gdb-version
這時(shí)候到命令行執(zhí)行一下命令/opt/gcc-arm/gcc-arm-11.2-2022.02-x86_64-arm-none-eabi/bin/arm-none-eabi-gdb -q --interpreter=mi2就能看到問(wèn)題
1. libncursesw.so.5: cannot open shared object file
首先是會(huì)有這樣的錯(cuò)誤輸出
/opt/gcc-arm/gcc-arm-11.2-2022.02-x86_64-arm-none-eabi/bin/arm-none-eabi-gdb -q --interpreter=mi2
/opt/gcc-arm/gcc-arm-11.2-2022.02-x86_64-arm-none-eabi/bin/arm-none-eabi-gdb: error while loading shared libraries: libncursesw.so.5: cannot open shared object file: No such file or directory
觀察ldd可以看到缺少兩個(gè)so: libncursesw.so.5, libpython3.6m.so.1.0
ldd /opt/gcc-arm/gcc-arm-11.2-2022.02-x86_64-arm-none-eabi/bin/arm-none-eabi-gdb
linux-vdso.so.1 (0x00007ffc82998000)
libncursesw.so.5 => not found
libtinfo.so.5 => /lib/x86_64-linux-gnu/libtinfo.so.5 (0x00007f326ba1e000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f326ba18000)
libpython3.6m.so.1.0 => not found
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f326b9f5000)
libutil.so.1 => /lib/x86_64-linux-gnu/libutil.so.1 (0x00007f326b9f0000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f326b89f000)
libexpat.so.1 => /lib/x86_64-linux-gnu/libexpat.so.1 (0x00007f326b871000)
libstdc++.so.6 => /lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f326b68f000)
libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f326b674000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f326b482000)
/lib64/ld-linux-x86-64.so.2 (0x00007f326ba6e000)
libncursesw.so.5可以通過(guò)安裝 libncursesw5 可以解決
sudo apt install libncursesw5
2. libpython3.6m.so.1.0: cannot open shared object file
這樣就剩下另一個(gè)動(dòng)態(tài)連接庫(kù)無(wú)法找到
/opt/gcc-arm/gcc-arm-11.2-2022.02-x86_64-arm-none-eabi/bin/arm-none-eabi-gdb -q --interpreter=mi2
/opt/gcc-arm/gcc-arm-11.2-2022.02-x86_64-arm-none-eabi/bin/arm-none-eabi-gdb: error while loading shared libraries: libpython3.6m.so.1.0: cannot open shared object file: No such file or directory
但是 Ubuntu20.04 自帶的 Python3.8, 無(wú)法安裝 Python3.6
~$ sudo apt-get install libpython3.6
Reading package lists... Done
Building dependency tree
Reading state information... Done
Note, selecting 'libpython3.6-stdlib' for regex 'libpython3.6'
0 upgraded, 0 newly installed, 0 to remove and 29 not upgraded.
簡(jiǎn)單粗暴的解決方法就是直接用3.8的代替
cd /usr/lib/x86_64-linux-gnu/
$ ll libpython*
lrwxrwxrwx 1 root root 19 Jul 1 20:27 libpython2.7.so.1 -> libpython2.7.so.1.0
-rw-r--r-- 1 root root 3455600 Jul 1 20:27 libpython2.7.so.1.0
lrwxrwxrwx 1 root root 55 Jun 23 04:18 libpython3.8.a -> ../python3.8/config-3.8-x86_64-linux-gnu/libpython3.8.a
lrwxrwxrwx 1 root root 17 Jun 23 04:18 libpython3.8.so -> libpython3.8.so.1
lrwxrwxrwx 1 root root 19 Jun 23 04:18 libpython3.8.so.1 -> libpython3.8.so.1.0
-rw-r--r-- 1 root root 5449112 Jun 23 04:18 libpython3.8.so.1.0
$ sudo ln -s libpython3.8.so.1.0 libpython3.6m.so.1.0
這時(shí)候再運(yùn)行就可以啟動(dòng)了
$ /opt/gcc-arm/gcc-arm-11.2-2022.02-x86_64-arm-none-eabi/bin/arm-none-eabi-gdb -q --interpreter=mi2
/opt/gcc-arm/gcc-arm-11.2-2022.02-x86_64-arm-none-eabi/bin/arm-none-eabi-gdb: Symbol `PyBool_Type' has different size in shared object, consider re-linking
/opt/gcc-arm/gcc-arm-11.2-2022.02-x86_64-arm-none-eabi/bin/arm-none-eabi-gdb: Symbol `PySlice_Type' has different size in shared object, consider re-linking
/opt/gcc-arm/gcc-arm-11.2-2022.02-x86_64-arm-none-eabi/bin/arm-none-eabi-gdb: Symbol `PyFloat_Type' has different size in shared object, consider re-linking
=thread-group-added,id="i1"
(gdb)
使用
點(diǎn)擊 Run And Debug 中的綠色運(yùn)行圖標(biāo)啟動(dòng)Debug, F10 下一步, F11 進(jìn)入, Shift + F11 跳出. 左側(cè)能觀察到變量值和寄存器值. 操作方法和其它IDE基本一致.
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