Ubuntu18.04编译Zeta Linux SDK——S3分支

S3是全志和索智联合开发的一款基于Arm Cortex-A7的单核编码类芯片。它内置128MB DDR3内存，具备规格高至1080P@60FPS的编码性能，以及丰富的外围接口。S3平台上运行的是名为Zeta的Linux系统，使用Linaro 5.3交叉编译工具链。详情可以浏览网址http://www.sochip.com.cn/s3。下面讲述如何在Ubuntu 18.04上编译S3的Linux开发包Zeta。

安装Ubuntu18.04操作系统后，安装下面的软件包：

sudo apt-get install git-core gnupg flex bison gperf build-essential \
 zip curl zlib1g-dev gcc-multilib g++-multilib libc6-dev-i386 \
 lib32ncurses5-dev x11proto-core-dev libx11-dev lib32z-dev ccache \
 libgl1-mesa-dev libxml2-utils xsltproc unzip u-boot-tools gawk samba

编译buildroot过程中，会出现若干来自于buildroot packages与Ubuntu18.04自带的工具/包冲突的错误，以下buildroot补丁可处理掉这些错误。

Changes not staged for commit:
  (use "git add/rm ..." to update what will be committed)
  (use "git checkout -- ..." to discard changes in working directory)

    deleted:    package/automake/0001-noman.patch
    deleted:    package/automake/automake.hash
    modified:   package/automake/automake.mk
    deleted:    package/e2fsprogs/0001-sem-init-libs.patch
    deleted:    package/e2fsprogs/0002-MCONFIG.in-handle-CLOCK_GETTIME_LIB.patch
    deleted:    package/e2fsprogs/e2fsprogs.hash
    modified:   package/e2fsprogs/e2fsprogs.mk

diff --git a/package/automake/automake.mk b/package/automake/automake.mk
index 84f05dc..928a33f 100644
--- a/package/automake/automake.mk
+++ b/package/automake/automake.mk
@@ -4,7 +4,7 @@
 #
 ################################################################################

-AUTOMAKE_VERSION = 1.15
+AUTOMAKE_VERSION = 1.16.1
 AUTOMAKE_SOURCE = automake-$(AUTOMAKE_VERSION).tar.xz
 AUTOMAKE_SITE = $(BR2_GNU_MIRROR)/automake
 AUTOMAKE_LICENSE = GPLv2+

diff --git a/package/e2fsprogs/e2fsprogs.mk b/package/e2fsprogs/e2fsprogs.mk
index b6e79d2..8a4edc8 100644
--- a/package/e2fsprogs/e2fsprogs.mk
+++ b/package/e2fsprogs/e2fsprogs.mk
@@ -4,7 +4,7 @@
 #
 ################################################################################

-E2FSPROGS_VERSION = 1.43.3
+E2FSPROGS_VERSION = 1.44.1
 E2FSPROGS_SOURCE = e2fsprogs-$(E2FSPROGS_VERSION).tar.xz
 E2FSPROGS_SITE = $(BR2_KERNEL_MIRROR)/linux/kernel/people/tytso/e2fsprogs/v$(E2FSPROGS_VERSION)
 E2FSPROGS_LICENSE = GPLv2, libuuid BSD-3c, libss and libet MIT-like with advertising clause

完成上述修改以后，导入编译环境：

source build/envsetup.sh

执行完整编译命令，最终生成固件。

zmake all