Overview
This document provides some solutions for building i.MX 6 series LTIB on an Ubuntu 14.04 Trusty Tahr host.
A Virtualbox virtual machine was created for the Ubuntu computer which is used for the build host.
Linux Target Image Builder (LTIB) is a perl script used for creating images (Bootloader u-boot, Linux uImage, and root file system). The build example shown here was for the i.MX 6Q and minimum root file system.
Software Versions
- L3.0.35_4.1.0_ER_SOURCE_BSP
- L3.0.35_4.1.0_docs.tar.gz
- Ubuntu 14.04 LTS Trusty Tahr
- Virtualbox
- Version 4.3.10
- File download URL: Oracle VM VirtualBox
- Machine Setup
- 4 CPU
- 4 GB RAM
- 64 GB Hard disk from USB 3.0 connected drive
- Host Computer
- Dell M4600, 8GB RAM, 8 CPU
- Ubuntu Linux 12.04.02 LTS
Ubuntu Host 14.04
Host Packages
Various packages are required to meet build requirements of LTIB.
Please refer to "Setting_Up_LTIB_host.pdf" document found in the L3.0.35_4.1.0_docs.tar.gz download.
See below for the trustyPkgs.txt attachment that shows all the packages that were installed. This was created using
the command: dpkg --list
On your host you can run the command "dpkg --list" and compare with the trustyPkgs.txt using your favorite diff tool. (examples, meld, diff). Any package missing can be added using your favorite package manager. For example to install mkimage which is found in the u-boot-tools package: sudo apt-get install u-boot-tools
Build
LTIB
Host Package M4
Failure
The package m4 fails to build. Paste of the error messages:
gcc -std=gnu99 -I. -g -O2 -MT clean-temp.o -MD -MP -MF .deps/clean-temp.Tpo -c -o clean-temp.o clean-temp.c
In file included from clean-temp.h:22:0,
from clean-temp.c:23:
./stdio.h:477:1: error: 'gets' undeclared here (not in a function)
make[3]: *** [clean-temp.o] Error 1
make[3]: Leaving directory `/opt/freescale/ltib/usr/src/rpm/BUILD/m4-1.4.16/lib'
make[2]: *** [all] Error 2
make[2]: Leaving directory `/opt/freescale/ltib/usr/src/rpm/BUILD/m4-1.4.16/lib'
Solution
Replace the m4 package with a newer version. The m4 package bundled with LTIB is version 1.4.16. A newer version 1.4.17 is available and does not have build failures.
md5sum m4-1.4.17.tar.gz > m4-1.4.17.tar.gz.md5
- Move both files to /opt/freescale/pkgs which is where ltib searches for packages.
mv m4* /opt/freescale/pkgs
- Edit the m4.spec file that specifies the version
cd <ltib>/dist/lfs5.1/m4/
Edit m4.spec using your favorite editor. Line 5 is the Version number to change from 16 to 17:
Original:
| 1 %define pfx /opt/freescale/rootfs/%{_target_cpu} |
| 2 |
| 3 Summary | : The GNU macro processor |
| 4 Name | : m4 |
| 5 Version | : 1.4.16 |
| 6 Release | : 1 |
| 7 License | : GPL |
Updated:
| 1 %define pfx /opt/freescale/rootfs/%{_target_cpu} | |
| 2 | |
| 3 Summary | : The GNU macro processor |
| 4 Name | : m4 |
| 5 Version | : 1.4.17 |
| 6 Release | : 1 |
| 7 License | : GPL |
busybox
Failure
/opt/freescale/usr/local/gcc-4.6.2-glibc-2.13-linaro-multilib-2011.12/fsl-linaro-toolchain/bin/../lib/gcc/arm-fsl-linux-gnueabi/4.6.2/../../../../arm-fsl-linux-gnueabi/bin/ld: cannot find /lib/libc.so.6
/opt/freescale/usr/local/gcc-4.6.2-glibc-2.13-linaro-multilib-2011.12/fsl-linaro-toolchain/bin/../lib/gcc/arm-fsl-linux-gnueabi/4.6.2/../../../../arm-fsl-linux-gnueabi/bin/ld: cannot find /usr/lib/libc_nonshared.a
/opt/freescale/usr/local/gcc-4.6.2-glibc-2.13-linaro-multilib-2011.12/fsl-linaro-toolchain/bin/../lib/gcc/arm-fsl-linux-gnueabi/4.6.2/../../../../arm-fsl-linux-gnueabi/bin/ld: cannot find /lib/ld-linux.so.3
collect2: ld returned 1 exit status
make: *** [busybox_unstripped] Error 1
error: Bad exit status from /home/user/imx6/ltib/tmp/rpm-tmp.60711 (%build)
RPM build errors:
Bad exit status from /home/user/imx6/ltib/tmp/rpm-tmp.60711 (%build)
Build time for busybox: 93 seconds
Failed building busybox
Solution:
Go into ltib/dist/lfs-5.1/base_libs/base_libs.spec and find these lines:
# remove absolute paths from text search files (if they exist)
perl -w -e '
@ARGV = grep { `file $_` =~ m,ASCII C program text, } @ARGV;
exit(0) unless @ARGV;
Remove the last two (the lines beginning with "@ARGV" and "exit(0)"
Adding the # character removes the lines 299 and 300
| 297 # remove absolute paths from text search files (if they exist) |
| 298 perl -w -e ' |
| 299 #@ARGV = grep { `file $_` =~ m,ASCII C program text, } @ARGV; |
| 300 #exit(0) unless @ARGV; |
| 301$^I = ".bak"; |
Success
When the build completes, u-boot.bin and uImage are found in <ltib>/rootfs/boot
[user@trusty ltib]$ tree rootfs/boot
rootfs/boot
├── bootable_kernel -> uImage
├── linux.config
├── System.map
├── u-boot
├── u-boot.bin
├── uImage
├── vmlinux
└── zImage
Original Attachment has been moved to: trustyPkgs.txt.zip
Original Attachment has been moved to: lkc-1.4.tar.gz
