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androiduboot编译

发布时间:2024-10-11 13:02:31

‘壹’ uboot是什么

U-Boot,全称 Universal Boot Loader,是遵循GPL条款的开放源码项目。U-Boot的作用是系统引导。U-Boot从FADSROM、8xxROM、PPCBOOT逐步发展演化而来。其源码目录、编译形式与linux内核很相似,事实上,不少U-Boot源码就是根据相应的Linux内核源程序进行简化而形成的,尤其是一些设备的驱动程序,这从U-Boot源码的注释中能体现这一点。

拓展资料:

选择U-Boot的理由:

① 开放源码;

② 支持多种嵌入式操作系统内核,如Linux、NetBSD, VxWorks, QNX, RTEMS, ARTOS, LynxOS, android;

③ 支持多个处理器系列,如PowerPC、ARM、x86、MIPS;

④ 较高的可靠性和稳定性;

⑤ 高度灵活的功能设置,适合U-Boot调试、操作系统不同引导要求、产品发布等;

⑥ 丰富的设备驱动源码,如串口、以太网、SDRAM、FLASH、LCD、NVRAM、EEPROM、RTC、键盘等;

⑦ 较为丰富的开发调试文档与强大的网络技术支持。

‘贰’ Yocto编译杰发或MTK的linux或android时的几个问题

编译问题1(audiomanager_7.0.bb的do_configure报错):

错误:CMake Error at Plugins/PluginCommandInterfaceCAPI/cmake/CommonAPI.cmake:352 (message):

|   Failed to generate files from FIDL:

手动执行一下:

$ commonapi-generator-linux-x86 -ll verbose -sk Default -d . /data/linux/hz_rs28_bm/sources/神燃build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/audiomanager/7.0-r1/audiomanager-7.0/Plugins/PluginCommandInterfaceCAPI/fidl/CommandInterface.fidl

-bash: /data/linux/hz_rs28_bm/sources/src/build/tools/commonapi_tool/commonapi-generator/commonapi-generator-linux-x86: /lib/ld-linux.so.2: bad ELF interpreter: No such file or directory

解决(需要安装32位的glibc库和32位java jre环境):

$ sudo yum install glibc.i686

$ sudo yum install java-1.8.0-openjdk.i686

$ sudo ln -s /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.191.b12-1.el7_6.i386/jre/bin/java /bin/java

$ java -version    (保证是32位的java)

编译问题2(perl_5.20.0.bb的do_package报错):

错误:ERROR: obj failed with exit code 256 (cmd was ‘arm-poky-linux-gnueabi-obj’ –only-keep-debug

… generate_uudmap: File format not recognized

解决(tar在1.29版本之后需要exclude在路径的前面):

sources/meta/poky/bitbake/lib/bb/fetch2/bzr.py

tar_flags = “–exclude ‘.bzr’ –exclude ‘.bzrtags'”

修改成:

tar_flags = “–exclude=’.bzr’ –exclude=’.bzrtags'”

sources/meta/poky/bitbake/lib/bb/fetch2/cvs.py

tar_flags = “–exclude ‘CVS'”

修改成:

tar_flags = “–exclude=’CVS'”

sources/meta/poky/bitbake/游轮虚lib/bb/fetch2/repo.py

tar_flags = “–exclude ‘.repo’ –exclude ‘.git'”

修改成:

tar_flags = “–exclude=’.repo’ –exclude=’.git'”

sources/meta/poky/bitbake/lib/bb/fetch2/svn.py

tar_flags = “–exclude ‘桐颤.svn'”

修改成:

tar_flags = “–exclude=’.svn'”

sources/meta/poky/meta/recipes-devtools/quilt/quilt-0.63.inc

       tar -cf – bin/ –exclude \*.in | ( cd ${D}${PTEST_PATH} && tar -xf – )

       tar -cf – compat/ –exclude \*.in | ( cd ${D}${PTEST_PATH} && tar -xf – )

       tar -cf – quilt/ –exclude \*.in | ( cd ${D}${PTEST_PATH} && tar -xf – )

       tar -cf – test/ –exclude mail.test –exclude delete.test | ( cd ${D}${PTEST_PATH} && tar -xf – )

修改成:

        tar -c –exclude=\*.in bin/ | ( cd ${D}${PTEST_PATH} && tar -xf – )

        tar -c –exclude=\*.in compat/ | ( cd ${D}${PTEST_PATH} && tar -xf – )

        tar -c –exclude=\*.in quilt/ | ( cd ${D}${PTEST_PATH} && tar -xf – )

        tar -c –exclude=mail.test –exclude=delete.test test/ | ( cd ${D}${PTEST_PATH} && tar -xf – && chmod 777 test)

sources/meta/poky/meta/recipes-extended/sed/sed-4.2.2/sed-add-ptest.patch

+       cd $(BUILDDIR); tar -cf – $(TESTDIR) –exclude *.o | ( cd $(DESTDIR) && tar -xf – )

修改成:

+       cd $(BUILDDIR); tar -c –exclude=*.o $(TESTDIR) | ( cd $(DESTDIR) && tar -xf – )

sources/meta/poky/meta/recipes-support/attr/acl.inc

tar -cf – test/ –exclude nfs | ( cd ${D}${PTEST_PATH} && tar -xf – )

修改成:

tar -c –exclude=nfs test/ | ( cd ${D}${PTEST_PATH} && tar -xf – )

sources/meta/poky/meta/recipes-support/attr/attr.inc

tar -cf – test/ –exclude ext | ( cd ${D}${PTEST_PATH} && tar -xf – )

修改成:

tar -c –exclude=ext test/ | ( cd ${D}${PTEST_PATH} && tar -xf – )

sources/meta/poky/meta/recipes-devtools/perl/perl-ptest.inc

       tar -cf – * –exclude \*.o –exclude libperl.so –exclude Makefile –exclude makefile –exclude hostperl \

               –exclude miniperl –exclude generate_uudmap –exclude patches | ( cd ${D}${PTEST_PATH} && tar -xf – )

修改成:

        tar -c –exclude=\*.o –exclude=libperl.so –exclude=Makefile –exclude=makefile –exclude=hostperl \

                –exclude=miniperl –exclude=generate_uudmap –exclude=patches * | ( cd ${D}${PTEST_PATH} && tar -x )

编译问题3(libunwind_1.1.bb的do_compile报错):

错误:make[1]: latex2man: Command not found

解决:

$ sudo yum install texlive-tetex

$ sudo rpm -ivh ~/latex2man-1.18-2.noarch.rpm

编译问题3(qt5-app_1.0.bb的do_compile报错):

错误(有一批类似的错误):ld: cannot find -lgtest

解决:

$ vi atc_linux/application/btate/btate.pro

equals(MY_BUILD_SYSTEM, atc) {

    LIBS += -L $(DA_LIBDIR)/lib -lgtest -lpthread -lbluetoothclient -lglobalbus -lappobj -lapputils

} else {

    LIBS += -L$(DA_TOP)/application/lib -L$(DA_TOP)/../../sources/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/atc-binarys/1.0-r0/image/usr/lib -lgtest -lpthread -lbluetoothclient -l

globalbus -lappobj -lapputils

}

$ vi atc_linux/application/gps/gps_bin.pro

equals(MY_BUILD_SYSTEM, atc) {

    LIBS += -L $(DA_LIBDIR)/lib  -lapputils  -lglobalbus -lappobj -lgps

} else {

    LIBS += -L$(DA_TOP)/application/lib -L$(DA_TOP)/../../sources/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/gpsd/3.10-r0/gpsd-3.10/ -lapputils  -lglobalbus -lappobj -lgps

}

$ vi atc_linux/application/dvr/dvr_bin.pro

equals(MY_BUILD_SYSTEM, atc) {

        LIBS    += -L${DA_TOP}/lib/lib/ -ldvr -ludev -lsurface_atc -lglobalbus -lappobj -lapputils -lstorage_atc -lgps

} else {

        LIBS    += -L${DA_TOP}/application/lib -L$(DA_TOP)/../../sources/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/gpsd/3.10-r0/gpsd-3.10/ -ldvr -ludev -lsurface_atc -lglobalbus –

lappobj -lapputils -lstorage_atc -lgps

}

$ vi atc_linux/application/dvr/dvr_bin.pro

INCLUDEPATH +=  ${DA_TOP}/kernel/kernel-3.18/drivers/ \

                ../common/  \

                ../utils/   \

                ../appobj/include/          \

                ../globalbus/include/       \

                ../appcommon/include/       \

                ../storage_atc/             \

                ../dvr/gps/             \

                ../gps/include/         \

                ../gps/includeex/       \

编译问题4(makall报错):

报错:./makall: line 169: mkisofs: command not found

解决:$ sudo yum install mkisofs

编译问题5(修改ac83xx_systemd_defconfig再编译时报错):

报错:Applying patch remove-selinux-android.patch

patching file system/extras/ext4_utils/make_ext4fs.c

Hunk #1 FAILED at 62.

1 out of 1 hunk FAILED — rejects in file system/extras/ext4_utils/make_ext4fs.c

解决:

$ vi sources/meta/meta-atc/recipes-devtools/android-tools/android-tools_5.1.1.r37.bb

在里面做个假的do_patch(),bitbake会优先使用本bb文件的do_patch()函数。

do_patch(){

}

编译问题6(修改ac83xx_systemd_defconfig再编译时报错):

报错:sources/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/qtbase/5.5.0+gitAUTOINC+c619d2daac-r0/git/src/corelib/tools/qregexp.cpp:3947:1: internal compiler error: in add_stores, at var-tracking.c:6000

解决:

$ cd sources/meta/poky/meta/recipes-devtools/gcc/gcc-4.9/

$ wget  http://openlinux.windriver.com/overc/sources/core2_64/gcc-4.9.2-r0.1/0062-gcc-var-tracking.c-backport-from-gcc-trunk-r212178.patch

$ vi sources/meta/poky/meta/recipes-devtools/gcc/gcc-4.9.inc

    file://0058-gcc-r212171.patch \

    file://0059-gcc-PR-rtl-optimization-63348.patch \

    file://target-gcc-includedir.patch \

    file://0062-gcc-var-tracking.c-backport-from-gcc-trunk-r212178.patch \

其实就是这个文件:

$ cat 0062-gcc-var-tracking.c-backport-from-gcc-trunk-r212178.patch

From Mon Sep 17 00:00:00 2001

From: =?UTF-8?q?Stefan=20M=C3=BCller-Klieser?= <[email protected]>

Date: Tue, 7 Apr 2015 16:15:11 +0200

Subject: [PATCH] gcc/var-tracking.c: backport from gcc trunk r212178

MIME-Version: 1.0

Content-Type: text/plain; charset=UTF-8

Content-Transfer-Encoding: 8bit

resolves a bug seen on cortexa8 building qt5 libraries.

2014-06-30  Joseph Myers  <[email protected]>

    * var-tracking.c (add_stores): Return instead of asserting if old

    and new values for conditional store are the same.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@212178 138bc75d-0d04-0410-961f-82ee72b054a4

Signed-off-by: Stefan Müller-Klieser <[email protected]>

---

gcc/var-tracking.c | 3 ++-

1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/gcc/var-tracking.c b/gcc/var-tracking.c

index 65d8285..7c38910 100644

--- a/gcc/var-tracking.c

+++ b/gcc/var-tracking.c

@@ -5997,7 +5997,8 @@ add_stores (rtx loc, const_rtx expr, void *cuip)

    {

      cselib_val *oval = cselib_lookup (oloc, GET_MODE (oloc), 0, VOIDmode);

-      gcc_assert (oval != v);

+      if (oval == v)

+        return;

      gcc_assert (REG_P (oloc) || MEM_P (oloc));

      if (oval && !cselib_preserved_value_p (oval))

--

1.9.1

编译问题7(修改ac83xx_systemd_defconfig再编译时报错):

报错:libevdev/1.2.2-r0/libevdev-1.2.2/test/test-main.c:24:19: fatal error: check.h: No such file or directory

解决:

$ vi meta/poky/meta/recipes-support/libevdev/libevdev_1.2.2.bb

LIC_FILES_CHKSUM = “file://COPYING;md5= \

                    file://libevdev/libevdev.h;endline=21;md5=″

DEPENDS += “libcheck”

SRC_URI = “ http://www.freedesktop.org/software/libevdev/ ${BP}.tar.xz”

编译问题8(修改ac83xx_systemd_defconfig再编译时报错):

报错:python报错: ‘do_rootfs’, lineno: 17, function

Exception: CalledProcessError: Command ‘[‘’, ‘-ks’, …

解决: 没有实际问题,重新编译一次即可,可能是机器太忙导致超时,或者某个命令执行不成功。

编译问题9(preuboot编译工具问题):

报错:make: armv7a-mediatek451_001_vfp-linux-gnueabi-gcc: Command not found

解决:

$ vi atc_linux/bootloader/preuboot/Makefile

#CROSS_COMPILE  :=armv7a-mediatek451_001_vfp-linux-gnueabi-

CROSS_COMPILE  :=arm-poky-linux-gnueabi-

$ vi ../../atc_linux/bootloader/preuboot/driver/mmc/include/linux/list.h

#ifndef NULL

    #define NULL 0

#endif

‘叁’ 从android 的boot.img解压出来的kernal.gz怎么解压

这个kernel已经是zImage了,可以继续解压成Image。有些系统如果使用uboot引导的话,recovery的代码修改成uImage+uramdisk好了,不一定要使用andoid原生态的做法。 Image为内核映像文件,而zImage为内核的一种映像压缩文件,gzip弄开就好了。貌似你刚开始嵌入式开发啊,慢慢练习1年就好了。

‘肆’ 编译android过程中,uboot报错

uboot是引导程序,android是系统,两者之间是两个独立工程,使用Uboot的目的只是为了引导Andriod的Linux内核和ramdisk(如果有需要使用ramdisk的话)。如果uboot通过屏蔽通过 ****.h文件中拿掉一些宏定义,使uboot编译通过。那么Andriod编译时候,也应该对一下宏进行屏蔽。

‘伍’ 整体编译Android系统,大家用了多少时间

我自己实际编译ICS4.0.4源码情况:acer台式机,3.2Ghz cpu,4核,8GB/1600hz内存,整体编译(含u-boot、kernel、boot.img和system.img)需要1小时10分钟。编译时,使用make -j8(因为硬件cpu是4线程的,故使用2倍线程数)。之后的增量编译,一般需要5~10分钟即可。

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