用超级用户建立Android

Question

有没有人知道如何从源代码（AOSP）构建android时包含超级用户权限？

Answer 1

为了得到一个根（ED）壳，编辑system/core/rootdir或在机器人源相关联到您的设备（例如为device/ti/panda/init.rc PANDABOARD）的init.rc，和改变那些行：

service console /system/bin/sh 
    class core 
    console 
    disabled 
    user shell 
    group log 

成：

service console /system/bin/sh 
    class core 
    console 
    disabled 
    user root 
    group root 

要嵌入Superuser.apk在AOSP，你必须获取和建设：

1. su-binary（例如在external/）和存根/删除system/extras/su包。
2. Superuser（例如，在packages/app/）

也可能必须设置的/system/xbin/su粘滞位在SU-二进制/ Android.mk。例如，我使用以下makefile：

LOCAL_PATH := $(call my-dir) 
include $(CLEAR_VARS) 

LOCAL_MODULE := su 
LOCAL_SRC_FILES := su.c db.c activity.cpp 

SU_SHARED_LIBRARIES := liblog libsqlite 
ifeq ($(PLATFORM_SDK_VERSION),4) 
    LOCAL_CFLAGS += -DSU_LEGACY_BUILD 
    SU_SHARED_LIBRARIES += libandroid_runtime 
else 
    SU_SHARED_LIBRARIES += libcutils libbinder libutils 
    LOCAL_MODULE_TAGS := eng 
endif 

LOCAL_C_INCLUDES += external/sqlite/dist 

LOCAL_SHARED_LIBRARIES := $(SU_SHARED_LIBRARIES) 

LOCAL_MODULE_PATH := $(TARGET_OUT_OPTIONAL_EXECUTABLES) 


SU_INSTALL_DIR := $(TARGET_OUT)/xbin 
SU_BINARY := $(SU_INSTALL_DIR)/su 
# taken from busybox-android 
$(SU_BINARY)-post: su 
    @echo "Setting SUID/GUID to su-binary..." 
    chmod ug+s $(TARGET_OUT_OPTIONAL_EXECUTABLES)/su 

SU_CMD := su 
SYMLINKS := $(addprefix $(TARGET_OUT_EXECUTABLES)/,$(SU_CMD)) 
$(SYMLINKS): $(LOCAL_INSTALLED_MODULE) $(SU_BINARY)-post $(LOCAL_PATH)/Android.mk 
    @echo "Symlink: $@ -> /system/xbin/$(SU_CMD)" 
    @mkdir -p $(dir $@) 
    @rm -rf $@ 
    @ln -sf /system/xbin/$(SU_CMD) $@ 

ALL_DEFAULT_INSTALLED_MODULES += $(SU_BINARY)-post $(SYMLINKS) 

include $(BUILD_EXECUTABLE)