完成通用功能需要Makfile和Makefile.build。自动生成通用模板的应用为CreatMakfile。
测试用目录如下：
因为CreatMakefile.c中的扫描部分和顶层Makfile的obj-y中的定义全部与src有关。所以项目结构为CreatMakfile和src文件夹并列，且源文件和H文件放到src目录及其子目录中。
应用CreatMakefile的用法：
-c 生成顶层Makefile和Makefile.build -n 指定Traget名字 -g 指定编译器 -s扫描目录 添加Makfile.inc和各子目录下的Makefile文件。
例如输入
查看顶层Makfile
执行./CreatMakfile -c 后
顶层生成了Makfile和Makefile.build。
执行./CreatMakfile -s 后
生成了Makfile.inc和各子目录下Makfile文件，Makfile.inc里输入了所有.h文件的路径，各子目录下的Makefie输入了添加obj-y生成对应.c文件的.o文件
比如test1/Makefile
Makfile.inc 因为只有test1下包含.h文件，所以只输入了此路径
然后make 就好。
#include <stdio.h> #include <string.h> #include <stdlib.h> #include <sys/types.h> #include <dirent.h> #include <unistd.h> //包含了Linux C 中的函数getcwd() #define FILEPATH_MAX (80) const char Makefile[] = {//顶层Makefile的2进制 可以用winHex打开 保存进此数组 0x23, 0xE7, 0xBC, 0x96, 0xE8, 0xAF, 0x91, 0xE5, 0xB7, 0xA5, 0xE5, 0x85, 0xB7, 0xE9, 0x93, 0xBE, 0x0A, 0x43, 0x52, 0x4F, 0x53, 0x53, 0x5F, 0x43, 0x4F, 0x4D, 0x50, 0x49, 0x4C, 0x45, 0x09, 0x3F, 0x3D, 0x0A, 0x41, 0x53, 0x09, 0x09, 0x09, 0x09, 0x3D, 0x20, 0x24, 0x28, 0x43, 0x52, 0x4F, 0x53, 0x53, 0x5F, 0x43, 0x4F, 0x4D, 0x50, 0x49, 0x4C, 0x45, 0x29, 0x61, 0x73, 0x0A, 0x4C, 0x44, 0x09, 0x09, 0x09, 0x09, 0x3D, 0x20, 0x24, 0x28, 0x43, 0x52, 0x4F, 0x53, 0x53, 0x5F, 0x43, 0x4F, 0x4D, 0x50, 0x49, 0x4C, 0x45, 0x29, 0x6C, 0x64, 0x0A, 0x43, 0x43, 0x09, 0x09, 0x09, 0x09, 0x3D, 0x20, 0x24, 0x28, 0x43, 0x52, 0x4F, 0x53, 0x53, 0x5F, 0x43, 0x4F, 0x4D, 0x50, 0x49, 0x4C, 0x45, 0x29, 0x67, 0x63, 0x63, 0x0A, 0x43, 0x50, 0x50, 0x09, 0x09, 0x09, 0x09, 0x3D, 0x20, 0x24, 0x28, 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Makefile\n"); printf(" -n, --name [=<target name>] target name, need -c\n"); printf(" -g, --gcc [=<cross compile>] cross compile, need -c\n"); printf(" -s, --scan scan ./src dir *.c and *.h\n"); return -1; } else { int creat_flag = 0; for (int i = 1; i < argc; i++) { if(strstr(&argv[i][0], "-c")) { creat_flag = 1; break; } } if (creat_flag) { char target_name[256] = "app"; //target_name默认为app char cross_compile[256] = ""; for (int i = 1; i < argc; i++) //指定target_name { if (strstr(&argv[i][0], "-n")) { if (i <= (argc - 2) && (argv[i + 1][0] != '-')) { strcpy(target_name, &argv[i + 1][0]); } break; } } for (int i = 1; i < argc; i++) //指定cross_compile { if (strstr(&argv[i][0], "-g")) { if (i <= (argc - 2) && (argv[i + 1][0] != '-')) { strcpy(cross_compile, &argv[i + 1][0]); } break; } } char* str; str = malloc(strlen(target_name) + strlen("#生成可执行文件名字\nTARGET := \n\n#指定交叉工具链\nCROSS_COMPILE = \n\n") + strlen(Makefile) + strlen(cross_compile)); sprintf(str, "#生成可执行文件名字\nTARGET := %s\n\n#指定交叉工具链\nCROSS_COMPILE = %s\n\n%s", target_name, cross_compile, Makefile); /* Makefile 路径文件 */ sprintf(file_name, "%s/Makefile", file_path_getcwd); fp_Makefile = fopen(file_name, "wb+"); fwrite(str, sizeof(char), strlen(str), fp_Makefile); fclose(fp_Makefile); /* Makefile.build 路径文件 */ sprintf(file_name, "%s/Makefile.build", file_path_getcwd); fp_Makefile_build = fopen(file_name, "wb+"); fwrite(Makefile_build, sizeof(char), strlen(Makefile_build), fp_Makefile_build); fclose(fp_Makefile_build); } for (int i = 1; i < argc; i++) { if(strstr(&argv[i][0], "-s")) { /* Makefile include 路径文件 */ sprintf(file_name, "%s/Makefile.inc", file_path_getcwd); fp_Makefile_inc = fopen(file_name, "wb+"); /* 扫描 */ sprintf(path, "%s/src", file_path_getcwd); printf("%s\r\n", path); scan_dir(path, ""); /* 写入路径文件 */ if(g_cnt_h) { char str[256]; for(int i = 0; i < g_cnt_h; i++) { sprintf(str, "D_INC += -I %s\r\n", &g_name_h[i][0]); fwrite(str, sizeof(char), strlen(str), fp_Makefile_inc); } } fclose(fp_Makefile_inc); break; } } } return 0; } int scan_dir(char* now_path, char* t) { int ret; DIR *d; struct dirent *file; char next_dir[256]; FILE *fp = NULL; char file_name[256]; char str[256]; char next_t[256]; char next_t_is_end[256]; char name_c[256][256]; char name_d[256][256]; int cnt_c = 0, cnt_d = 0; int have_h = 0; sprintf(next_t, "%s│ ", t); sprintf(next_t_is_end, "%s ", t); /* 打开文件夹 */ d = opendir(now_path); if(d == NULL) { printf("open dir error!\r\n"); return -1; } /* 进入循环遍历 */ while(1) { /* 遍历文件 */ file = readdir(d); if(file == NULL) break; //把当前目录.，上一级目录..及隐藏文件都去掉，避免死循环遍历目录 if(strncmp(file->d_name, ".", 1) == 0) continue; /* 处理文件夹 */ if(file->d_type == DT_DIR) { strcpy(&name_d[cnt_d++][0], file->d_name); } /* 处理文件 */ if(file->d_type == DT_REG) { /* 过滤出C文件 */ if(strstr(file->d_name, ".c") || strstr(file->d_name, ".C")) { int len; len = strlen(file->d_name); if(file->d_name[len - 1] != 'C' && file->d_name[len - 1] != 'c' && file->d_name[len - 1] != 'P' && file->d_name[len - 1] != 'p') continue; strcpy(&name_c[cnt_c++][0], file->d_name); } /* 记录当前目录下是否有h文件 */ if(strstr(file->d_name, ".h") || strstr(file->d_name, ".H")) { if(have_h == 0) { strcpy(&g_name_h[g_cnt_h++][0], now_path); have_h = 1; } } } } /* 处理C文件 */ if(cnt_c) { /* 第一次打开, 创建Makefile文件 */ sprintf(file_name, "%s/Makefile", now_path); fp = fopen(file_name, "wb+"); for(int j = 0; j < cnt_c; j++) { /* 打印文件信息 */ if((j + 1) == cnt_c && cnt_d == 0) { printf("%s└── \033[40;33m%s\033[0m\r\n", t, &name_c[j][0]); } else { printf("%s├── \033[40;33m%s\033[0m\r\n", t, &name_c[j][0]); } /* .c 替换成 .o */ char temp_str[256]; for(int i = 0; ; i++) { if(name_c[j][i] != '.') { temp_str[i] = name_c[j][i]; } else { temp_str[i] = name_c[j][i]; temp_str[i + 1] = 'o'; temp_str[i + 2] = '\0'; break; } } /* 添加编译文件 */ sprintf(str, "obj-y += %s\r\n", temp_str); fwrite(str, sizeof(char), strlen(str), fp); } } /* 处理文件夹 */ if(cnt_d) { for(int j = 0; j < cnt_d; j++) { /* 打印文件信息 */ if(cnt_d == (j + 1)) //最后一个文件夹 { printf("%s└── \033[40;31m%s\033[0m\r\n", t, &name_d[j][0]); sprintf(next_dir, "%s/%s", now_path, &name_d[j][0]); ret = scan_dir(next_dir, next_t_is_end); //递归调用 } else { printf("%s├── \033[40;31m%s\033[0m\r\n", t, &name_d[j][0]); sprintf(next_dir, "%s/%s", now_path, &name_d[j][0]); ret = scan_dir(next_dir, next_t); //递归调用 } if(ret) continue; /* 第一次打开, 创建Makefile文件 */ if(fp == NULL) { sprintf(file_name, "%s/Makefile", now_path); fp = fopen(file_name, "wb+"); } /* 添加文件夹 */ if(fp) { sprintf(str, "obj-y += %s/\r\n", &name_d[j][0]); fwrite(str, sizeof(char), strlen(str), fp); } } } /* 关闭文件 */ if(fp) { ret = 0; fclose(fp); } else { ret = -1; } closedir(d); return ret; }
搬运自：https://blog.csdn.net/h244259402/article/details/98685891