TQIMAX6q调试笔记二：linux与uboot的编译

一.按照《TQIMX6环境搭建》，成功安装ubuntu开发环境。

二.按照《TQIMX6_COREC编译手册》，成功安装交叉编译器。

三.按照《TQIMX6_COREC编译手册》，编译源码：

1.成功编译uboot，并烧录板子，打印如下信息：

U-Boot 2015.04 (Sep 21 2017 - 11:05:26)


CPU:   Freescale i.MX6Q rev1.5 at 792 MHz
CPU:   Temperature 33 C
Reset cause: POR
Board: MX6-SabreSD
I2C:   ready
DRAM:  2 GiB
MMC:   FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 2
Display: CLAA-WVGA (800x480)
asd1
asd2
In:    serial
Out:   serial
Err:   serial
switch to partitions #0, OK
mmc2(part 0) is current device
check_and_clean: reg 0, flag_set 0
Fastboot: Normal
flash target is MMC:2
Bad partition index:5 for partition:system
Bad partition index:4 for partition:data
Net:   FEC [PRIME]
reading logo.bmp
** Unable to read file logo.bmp **
There is no valid bmp file at the given address
Normal Boot
Hit any key to stop autoboot:  0 

2.成功编译kernel，但烧录板子后，kernel启动失败，打印如下信息：

reading zImage
8437800 bytes read in 397 ms (20.3 MiB/s)
reading imx6q-sabresd.dtb
44527 bytes read in 18 ms (2.4 MiB/s)
Kernel image @ 0x12000000 [ 0x000000 - 0x80c028 ]
## Flattened Device Tree blob at 18000000
   Booting using the fdt blob at 0x18000000
   Using Device Tree in place at 18000000, end 1800ddee


Starting kernel ...

可能原因：编译库文件版本可能不对，需要更新库。

解决方案：创建ubuntu_env_install.sh可执行文件，在文件中加入以下信息：

apt-get update
add-apt-repository ppa:ubuntu-toolchain-r/test
apt-get update

echo y | apt-get install openjdk-7-jdk

echo y | apt-get install uuid-dev
echo y | apt-get install uuid
echo y | apt-get install uuidcdef
echo y | apt-get install m4
echo y | apt-get install bison
echo y | apt-get install zlib1g-dev
echo y | apt-get install g++-multilib gcc-multilib lib32ncurses5-dev
echo y | apt-get install lib32readline-gplv2-dev lib32z1-dev
echo y | apt-get install lzop
echo y | apt-get install u-boot-tools
echo y | apt-get install libxml2-utils
echo y | apt-get install jack
echo y | apt-get install libz-dev
echo y | apt-get install lib32z1-dev
echo y | apt-get install gnupg flex gperf
echo y | apt-get install libc6-dev
echo y | apt-get install curl
echo y | apt-get install ia32-libs
echo y | apt-get install libxml2-utils

echo y | apt-get install gcc-4.4 g++-4.4 g++-4.4-multilib

mv -f /usr/bin/gcc /usr/bin/bak_gcc
mv -f /usr/bin/g++ /usr/bin/bak_g++
ln -s /usr/bin/gcc