以下情况 - 我有一台支持 Android 的单板计算机和制造商提供的 android 源代码。它完全可以从中构建一个 android 图像。不幸的是，默认情况下它没有 Root 。我可以设法获得一个 Root过的外壳。但我还需要应用程序的 super 用户权限，这正是我苦苦挣扎的地方。

起初我试图注释掉 system/extras/su/su.c 中的以下几行:

//if (myuid != AID_ROOT && myuid != AID_SHELL) {
//    fprintf(stderr,"su: uid %d not allowed to su\n", myuid);
//    return 1;
//}

//if(setgid(gid) || setuid(uid)) {
//    fprintf(stderr,"su: permission denied\n");
//    return 1;
//}

由于这不起作用，我在 stackoverflow 上找到了这个线程:Build Android with Superuser并尝试了这部分建议:

To embed Superuser.apk in AOSP, you have to fetch and build:

su-binary (e.g. in external/) and stub/remove system/extras/su package. Superuser (e.g. in packages/app/)

但是我在构建 android 时遇到错误:

ctarget Dex: core-tests-hostdex
../arm-linux-androideabi/bin/ld: out/target/product/.../obj/EXECUTABLES/su_intermediates/su.o: in function deny:external/su-binary-master/su.c:287: error: undefined reference to 'LOGW'
../arm-linux-androideabi/bin/ld: out/target/product/.../obj/EXECUTABLES/su_intermediates/su.o: in function allow:external/su-binary-master/su.c:319: error: undefined reference to 'LOGE'
../arm-linux-androideabi/bin/ld: out/target/product/.../obj/EXECUTABLES/su_intermediates/su.o: in function allow:external/su-binary-master/su.c:330: error: undefined reference to 'LOGE'
../arm-linux-androideabi/bin/ld: out/target/product/.../obj/EXECUTABLES/su_intermediates/su.o: in function allow:external/su-binary-master/su.c:338: error: undefined reference to 'LOGD'
../arm-linux-androideabi/bin/ld: out/target/product/.../obj/EXECUTABLES/su_intermediates/su.o: in function allow:external/su-binary-master/su.c:352: error: undefined reference to 'LOGE'
../arm-linux-androideabi/bin/ld: out/target/product/.../obj/EXECUTABLES/su_intermediates/su.o: in function main:external/su-binary-master/su.c:440: error: undefined reference to 'LOGE'
../arm-linux-androideabi/bin/ld: out/target/product/.../obj/EXECUTABLES/su_intermediates/su.o: in function main:external/su-binary-master/su.c:582: error: undefined reference to 'LOGW'
../arm-linux-androideabi/bin/ld: out/target/product/.../obj/EXECUTABLES/su_intermediates/db.o: in function database_check:external/su-binary-master/db.c:31: error: undefined reference to 'LOGD'
../arm-linux-androideabi/bin/ld: out/target/product/.../obj/EXECUTABLES/su_intermediates/db.o: in function database_check:external/su-binary-master/db.c:35: error: undefined reference to 'LOGD'
../arm-linux-androideabi/bin/ld: out/target/product/.../obj/EXECUTABLES/su_intermediates/db.o: in function database_check:external/su-binary-master/db.c:39: error: undefined reference to 'LOGD'
collect2: ld returned 1 exit status
make: *** [out/target/product/.../obj/EXECUTABLES/su_intermediates/LINKED/su] Error 1

谁能告诉我如何解决这个错误或其他获得 su 权限的方法吗？

非常感谢您。 :)

最佳答案

好的，我找到问题了。对于面临同样问题的任何人:

从 su.h 中删除以下 if 命令:

#if 0
#undef LOGE
#define LOGE(fmt,args...) fprintf(stderr, fmt, ##args)
#undef LOGD
#define LOGD(fmt,args...) fprintf(stderr, fmt, ##args)
#undef LOGW
#define LOGW(fmt,args...) fprintf(stderr, fmt, ##args)
#endif

关于android - 使用 super 用户权限从源代码构建/编译 Android，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/23845232/