修正
发现makefile存在问题,仅会编译比main.cpp更新的依赖文件,导致每次都要make两次才能正常调试。已修改$?
为$^
$@ –代表目标文件(target)
$^ –代表所有的依赖文件(components)
$< –代表第一个依赖文件(components中最左边的那个)
$? –代表比目标还要新的依赖文件列表
概述
之前从知乎抄的配置只能编译单文件源文件,编译多文件的话需要手动修改g++编译参数(不能忍啊→_→),于是搜索之,找到解决方案。
关键词:makefile
环境准备
原本使用VSCode就可以正常进行编译调试等操作。
已安装make工具并添加到环境变量,我自己用的是mingw32-make
(也可使用msys提供的工具包,度盘链接: https://pan.baidu.com/s/1zJBcS6tjfXlwg1kP6VnLSg 提取码: f9ya)
具体方案
构建makefile模板
我基本是直接复制参考博文里的模板(修改标准库为17),内容如下
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|
CC := g++ CCFLAG := -std=c++17 DBGFLAG := -g CCOBJFLAG := $(CCFLAG) -c
BIN_PATH := bin OBJ_PATH := obj SRC_PATH := src DBG_PATH := debug
TARGET_NAME := main ifeq ($(OS),Windows_NT) TARGET_NAME := $(addsuffix .exe,$(TARGET_NAME)) endif TARGET := $(BIN_PATH)/$(TARGET_NAME) TARGET_DEBUG := $(DBG_PATH)/$(TARGET_NAME) MAIN_SRC := src/main.cpp
SRC := $(foreach x, $(SRC_PATH), $(wildcard $(addprefix $(x)/*,.c*))) OBJ := $(addprefix $(OBJ_PATH)/, $(addsuffix .o, $(notdir $(basename $(SRC))))) OBJ_DEBUG := $(addprefix $(DBG_PATH)/, $(addsuffix .o, $(notdir $(basename $(SRC)))))
DISTCLEAN_LIST := $(OBJ) \ $(OBJ_DEBUG) CLEAN_LIST := $(TARGET) \ $(TARGET_DEBUG) \ $(DISTCLEAN_LIST)
default: all
$(TARGET): $(OBJ) $(CC) $(CCFLAG) -o $@ $^
$(OBJ_PATH)/%.o: $(SRC_PATH)/%.c* $(CC) $(CCOBJFLAG) -o $@ $<
$(DBG_PATH)/%.o: $(SRC_PATH)/%.c* $(CC) $(CCOBJFLAG) $(DBGFLAG) -o $@ $<
$(TARGET_DEBUG): $(OBJ_DEBUG) $(CC) $(CCFLAG) $(DBGFLAG) $^ -o $@
.PHONY: all all: $(TARGET)
.PHONY: debug debug: $(TARGET_DEBUG)
.PHONY: clean clean: @echo CLEAN $(CLEAN_LIST) @rm -f $(CLEAN_LIST)
.PHONY: distclean distclean: @echo CLEAN $(CLEAN_LIST) @rm -f $(DISTCLEAN_LIST)
|
目录结构
src文件夹下放源文件以及头文件,后面还要需要修改.vscode
中的task.json
和launch.json
注意:如果使用本文中的makefle,包含主函数的源文件名必须为main.cpp
task.json
如果你使用的是msys的工具包,那command就写make
按快捷键Ctrl+Shift+B
可以执行仅生成命令(build)
(在微软输入法中文模式时会出现表情窗口←_←)
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| { "version": "2.0.0", "tasks": [ { "label": "build", "command": "mingw32-make", "args": [ "default" ], "type": "shell", "group": { "kind": "build", "isDefault": true }, }, { "label": "build-debug", "command": "mingw32-make", "args": [ "debug" ], "type": "shell" }, { "label": "clean", "command": "mingw32-make", "args": [ "clean" ], "type": "shell" } ] }
|
launch.json
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{ "version": "0.2.0", "configurations": [ { "name": "(gdb) Launch", "type": "cppdbg", "request": "launch", "program": "${workspaceFolder}/debug/main.exe", "args": [], "stopAtEntry": false, "cwd": "${workspaceFolder}/debug/", "environment": [], "externalConsole": true, "internalConsoleOptions": "neverOpen", "MIMode": "gdb", "miDebuggerPath": "gdb.exe", "setupCommands": [ { "description": "Enable pretty-printing for gdb", "text": "-enable-pretty-printing", "ignoreFailures": false, } ], "preLaunchTask": "build-debug" } ] }
|
配置完成
enjoy it!
😉
参考
VS Code 配置 C/C++ 环境