. Simulator
Which would you like]
Build type choices are. release
. debug
Which would you like]
Which product would you like. user . userdebug . eng
.-update1
TARGET_PRODUCT=fs100
TARGET_BUILD_VARIANT=eng
TARGET_SIMULATOR=false
TARGET_BUILD_TYPE=release
TARGET_ARCH=arm
HOST_ARCH=x86
HOST_OS=linux
HOST_BUILD_TYPE=release
BUILD_ID=ERE27
============================================
编译 make -j2
编译完成之后
eclair_2.1_farsight ===> rootfs
制作根文件目录:
out/target/product/fs10/system
mkdir myrootfs
cp -raf out/target/product/fs100/root/* myrootfs/
cp -raf out/target/product/fs100/system myrootfs
===> 制作后的rootfs里面有什么内容:
default.prop
system
|
app // 系统自带的apk
bin
etc
lib
usr
xbin
build.prop // 编译的属性信息: 编译时间,作者,平台
fonts // 字体库
framework // android framework运行核心代码的二进制文件
init // 第一个用户进程
init.fs100.rc
init.rc // 启动脚本, 规定了init进程会去启动哪些其他的进程, 类似etc/inittab
init.goldfish.rc
sbin
dev
proc
sys
运行
1, 烧录的方式:
set bootargs console init... ethaddr init init rootfstype=yaffs2
因为烧录的jffs, yaffs扫描的时候出问题, 文件系统的分区部分擦擦出
yaffs tragedy: no more erased blocks
!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!
yaffs tragedy: no more erased blocks
!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!
yaffs tragedy: no more erased blocks
!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!
yaffs tragedy: no more erased blocks
!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!
yaffs tragedy: no more erased blocks
解决:nand erase 0x9800000 0x6800000
调试
log系统
/ # ls /dev/log/*
/dev/log/events(数据事件) /dev/log/main(大部分的调试信息) /dev/log/radio(针对无线通信)
调试级别/标签tag(pid): 调试内容
调试级别:
D debug
I info
W warning
E error
F fatal
标签tag: 区分调试信息是从哪个代码中打印出来
过滤:
logcat -s "ActivityManager"
//清空缓冲
logcat -c
android中如何用c写一个可执行代码--->编译出来-->运行
Android.mk==> 改编后的Makefile
编译规则
目标文件的路径
依赖文件的路径
写: 抄模板:hardware/ril/rild/Android.mk
#获取源码目录
LOCAL_PATH:= $(call my-dir)
include $(CLEAR_VARS)
#表示依赖文件
LOCAL_SRC_FILES:= hello.c
#表示目标文件
LOCAL_MODULE:= hello_arm_elf
#表示编译方法
include $(BUILD_EXECUTABLE)
===> 编译:
TARGET_PRODUCT=fs100
TARGET_BUILD_VARIANT=eng
TARGET_SIMULATOR=false
TARGET_BUILD_TYPE=release
TARGET_ARCH=arm
HOST_ARCH=x86
HOST_OS=linux
HOST_BUILD_TYPE=release
BUILD_ID=ERE27
============================================
make:进入目录'/home/ldswfun/src_s5pc/eclair_2.1_farsight'
target thumb C: hello_arm_elf <= mytest/c_test/hello.c
target Executable: hello_arm_elf (out/target/product/fs100/obj/EXECUTABLES/hello_arm_elf_intermediates/LINKED/hello_arm_elf)
target Non-prelinked: hello_arm_elf (out/target/product/fs100/symbols/system/bin/hello_arm_elf)
target Strip: hello_arm_elf (out/target/product/fs100/obj/EXECUTABLES/hello_arm_elf_intermediates/hello_arm_elf)
Install: out/target/product/fs100/system/bin/hello_arm_elf
make:离开目录“/home/ldswfun/src_s5pc/eclair_2.1_farsight”
===> 运行:
cp -raf out/target/product/fs100/system/bin/hello_arm_elf /opt/myrootfs/
@成鹏致远
（blogs：http://lcw.cnblogs.com）
（email：wwwlllll@126.com）
）