Difference between revisions of "Poky manual"
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<b>solution</b>: exclude the '''0001-mod_cgi-buffers-data-without-bound.patch''' from the file list that comes with the '''poky/meta/recipes-extended/lighttpd_1.4.39.bb''' | <b>solution</b>: exclude the '''0001-mod_cgi-buffers-data-without-bound.patch''' from the file list that comes with the '''poky/meta/recipes-extended/lighttpd_1.4.39.bb''' | ||
| + | |||
| + | * '''Invalidate chache/checksum on package code changes''' | ||
| + | ** SRCREV = "${AUTOREV}" - updates the checksum but the cache is not cleared/invalidated? | ||
| + | SRCREV <- AUTOREV <- AUTOREV <- "${@bb.fetch2.get_autorev(d)}" (bitbake/lib/bb/__init__.py) | ||
| + | |||
| + | def get_autorev(d): | ||
| + | # only not cache src rev in autorev case | ||
| + | if d.getVar('BB_SRCREV_POLICY', True) != "cache": | ||
| + | d.setVar('__BB_DONT_CACHE', '1') | ||
| + | return "AUTOINC" | ||
| + | |||
| + | BB_DONT_CACHE ?!!!!!!! | ||
==<font color="blue">Errors</font>== | ==<font color="blue">Errors</font>== | ||
Revision as of 14:18, 15 August 2016
Contents
Description
- Building embedded Linux image for Zynq ARMv7 platform - Elphel 10393 board
About
- Yocto Poky revision = 2.0 (Jethro)
- Host OSes:
- Kubuntu 14.04.3 LTS x64 (until June 2016)
- Kubuntu 16.04 x64 (as of June 2016)
Required packages
- Found in Yocto Project mega-manual :
Ubuntu and Debian
sudo apt-get install gawk wget git-core diffstat unzip texinfo gcc-multilib \ build-essential chrpath socat libsdl1.2-dev xterm
Fedora
sudo dnf install gawk make wget tar bzip2 gzip python unzip perl patch \ diffutils diffstat git cpp gcc gcc-c++ glibc-devel texinfo chrpath \ ccache perl-Data-Dumper perl-Text-ParseWords perl-Thread-Queue socat \ findutils which SDL-devel xterm
OpenSUSE
sudo zypper install python gcc gcc-c++ git chrpath make wget python-xml \ diffstat makeinfo python-curses patch socat libSDL-devel xterm
CentOS
sudo yum install gawk make wget tar bzip2 gzip python unzip perl patch \ diffutils diffstat git cpp gcc gcc-c++ glibc-devel texinfo chrpath socat \ perl-Data-Dumper perl-Text-ParseWords perl-Thread-Queue SDL-devel xterm
Other dependencies
sudo apt-get install python-numpy
Output files
Found in the poky's deploy directory:
- files for rootfs in NAND Flash: poky/build/tmp/deploy/images/elphel393/nand/
- files for rootfs on MMC (micro SD card): poky/build/tmp/deploy/images/elphel393/mmc/
These names are listed as they appear in the u-boot configuration header file - actual output files have different names:
- boot.bin - u-boot as the first stage bootloader = Secondary Program Loader that boots u-boot-dtb.img
- u-boot-dtb.img - full size u-boot with a stripped device tree (cat u-boot.img some_stripped_devicetree.dtb > u-boot-dtb.img)
- devicetree.dtb - device tree with listed interfaces, zynq registers, interrupts and drivers
- uImage - kernel, drivers
- rootfs.ubifs or rootfs.tar.gz - rootfs
Boot options
Boot from micro SD card (rootfs)
- The micro SD card/adapter must be modified for this boot mode (to keep CD pin high) - only then the camera will boot
- EXT4 partition mounted as /
- Detailed instructions
Boot from NAND flash (rootfs)
- The default boot option - power on.
- A UBIFS image is written to /dev/mtd4 - is mounted as /
- Detailed instructions
Notes
- It is possible to unpack rootfs to RAM not mounting any partitions (/ in RAM, ramdisk):
- Changes are not stored
- Boot faster?
- Work faster?
- Modify env commands in the u-boot (in elphel393.h or when in the u-boot command line)
- Carefully check the actual and hardcoded images' sizes in the u-boot (elphel393.h) and the device tree (elphel393_xxx.dts) with the actual sizes.
Setup
git clone https://github.com/Elphel/elphel393.git cd elphel393 ./setup.sh dev cd poky . ./oe-init-build-env bitbake u-boot device-tree linux-xlnx core-image-elphel393
Build bootloader
bitbake u-boot-ezynq or bitbake u-boot or bitbake virtual/bootloader
Output
- poky/build/tmp/deploy/images/<machine>/boot.bin
- poky/build/tmp/deploy/images/<machine>/u-boot-dtb.img
Notes
- Since Poky 1.5.1 switched from u-boot-xlnx to u-boot - some of the u-boot-xlnx reached the upstream
- Since Poky 1.5.1 u-boot introduced Kconfig and currently (as of 2016/01/22) is still migrating from autoconf - keeping both build methods working together.
- Current u-boot uses the board's device tree blob to make a stripped version for itself - uncompiled device tree files are present in the u-boot sources
Compile devicetree
bitbake device-tree
Output
- poky/build/tmp/deploy/images/<machine>/devicetree.dtb
Build kernel
bitbake linux-xlnx or bitbake virtual/kernel
Output
- poky/build/tmp/deploy/images/<machine>/uImage (kernel)
Notes
- Kernel version is 4.0, linux-xlnx
- Device Tree Blob is compiled separately in linux-xlnx
- Uncompiled device tree files are present in the linux sources provided by linux-xlnx
Build ramdisk.image.gz
bitbake core-image-elphel393
Output
- poky/build/tmp/deploy/images/<machine>/uramdisk.image.gz (the file has *.u-boot extension after it's built)
Notes
- [FIXED] lighttpd-1.4.39, mod-cgi
compile warning:
implicit declaration of function 'chunkqueue_written'
results in lighttpd failing to start if mod-cgi is enabled:
Starting Lighttpd Web Server: 2016-01-26 18:42:17: (/data/GIT_fresh/poky/build/tmp/work/cortexa9-vfp-neon-poky-linux-gnueabi/lighttpd/1.4.36-r0/lighttpd-1.4.36/src/plugin.c.169) dlopen() failed for: /usr/lib/mod_cgi.so /usr/lib/mod_cgi.so: undefined symbol: chunkqueue_w 2016-01-26 18:42:17: (/data/GIT_fresh/poky/build/tmp/work/cortexa9-vfp-neon-poky-linux-gnueabi/lighttpd/1.4.36-r0/lighttpd-1.4.36/src/server.c.679) loading plugins finally failed lighttpd.
Note: why 1.4.36?!!
solution: exclude the 0001-mod_cgi-buffers-data-without-bound.patch from the file list that comes with the poky/meta/recipes-extended/lighttpd_1.4.39.bb
- Invalidate chache/checksum on package code changes
- SRCREV = "${AUTOREV}" - updates the checksum but the cache is not cleared/invalidated?
SRCREV <- AUTOREV <- AUTOREV <- "${@bb.fetch2.get_autorev(d)}" (bitbake/lib/bb/__init__.py)
def get_autorev(d):
# only not cache src rev in autorev case
if d.getVar('BB_SRCREV_POLICY', True) != "cache":
d.setVar('__BB_DONT_CACHE', '1')
return "AUTOINC"
BB_DONT_CACHE ?!!!!!!!
Errors
- Aborted, core dumped
- Got when tried to build gstreamer1.0-plugins-base - error in one of the packages it depends on.
- Possible reason - Kubuntu 14.04 - the system libraries are too old? The up-to-date Kubuntu release is 16.04.
- Command (example):
bitbake libxau-native
- log:
| x86_64-linux-libtool: link: ar cru .libs/libXau.a AuDispose.o AuFileName.o AuGetAddr.o AuGetBest.o AuLock.o AuRead.o AuUnlock.o AuWrite.o | *** buffer overflow detected ***: ar terminated | ======= Backtrace: ========= | /lib/x86_64-linux-gnu/libc.so.6(+0x7329f)[0x2b732eade29f] | /lib/x86_64-linux-gnu/libc.so.6(__fortify_fail+0x5c)[0x2b732eb75bbc] | /lib/x86_64-linux-gnu/libc.so.6(+0x109a90)[0x2b732eb74a90] | /lib/x86_64-linux-gnu/libc.so.6(+0x108f99)[0x2b732eb73f99] | /lib/x86_64-linux-gnu/libc.so.6(_IO_default_xsputn+0xbc)[0x2b732eae660c] | /lib/x86_64-linux-gnu/libc.so.6(_IO_padn+0xa0)[0x2b732eada600] | /lib/x86_64-linux-gnu/libc.so.6(_IO_vfprintf+0x3c4d)[0x2b732eab888d] | /lib/x86_64-linux-gnu/libc.so.6(__vsprintf_chk+0x84)[0x2b732eb74024] | /lib/x86_64-linux-gnu/libc.so.6(__sprintf_chk+0x7d)[0x2b732eb73f7d] | ar[0x406d20] | ar[0x4088df] | ar[0x40bf08] | ar[0x404a86] | ar[0x405003] | ar[0x402a45] | /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5)[0x2b732ea8cf45] | ar[0x402dc5] | ======= Memory map: ======== | 00400000-00482000 r-xp 00000000 08:01 27273645 /usr/local/bin/ar | 00682000-00683000 r--p 00082000 08:01 27273645 /usr/local/bin/ar | 00683000-00684000 rw-p 00083000 08:01 27273645 /usr/local/bin/ar | 00776000-007e0000 rw-p 00000000 00:00 0 [heap] | 2b732e846000-2b732e869000 r-xp 00000000 08:01 26740221 /lib/x86_64-linux-gnu/ld-2.19.so | 2b732e869000-2b732e86d000 rw-p 00000000 00:00 0 | 2b732e898000-2b732e89b000 rw-p 00000000 00:00 0 | 2b732ea68000-2b732ea69000 r--p 00022000 08:01 26740221 /lib/x86_64-linux-gnu/ld-2.19.so | 2b732ea69000-2b732ea6a000 rw-p 00023000 08:01 26740221 /lib/x86_64-linux-gnu/ld-2.19.so | 2b732ea6a000-2b732ea6b000 rw-p 00000000 00:00 0 | 2b732ea6b000-2b732ec25000 r-xp 00000000 08:01 26740235 /lib/x86_64-linux-gnu/libc-2.19.so | 2b732ec25000-2b732ee25000 ---p 001ba000 08:01 26740235 /lib/x86_64-linux-gnu/libc-2.19.so | 2b732ee25000-2b732ee29000 r--p 001ba000 08:01 26740235 /lib/x86_64-linux-gnu/libc-2.19.so | 2b732ee29000-2b732ee2b000 rw-p 001be000 08:01 26740235 /lib/x86_64-linux-gnu/libc-2.19.so | 2b732ee2b000-2b732ee30000 rw-p 00000000 00:00 0 | 2b732ee30000-2b732ee46000 r-xp 00000000 08:01 26741717 /lib/x86_64-linux-gnu/libgcc_s.so.1 | 2b732ee46000-2b732f045000 ---p 00016000 08:01 26741717 /lib/x86_64-linux-gnu/libgcc_s.so.1 | 2b732f045000-2b732f046000 rw-p 00015000 08:01 26741717 /lib/x86_64-linux-gnu/libgcc_s.so.1 | 7fffb978b000-7fffb97ad000 rw-p 00000000 00:00 0 [stack] | 7fffb97f8000-7fffb97fa000 r-xp 00000000 00:00 0 [vdso] | ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0 [vsyscall] | ./x86_64-linux-libtool: line 1723: 8035 Aborted (core dumped) ar cru .libs/libXau.a AuDispose.o AuFileName.o AuGetAddr.o AuGetBest.o AuLock.o AuRead.o AuUnlock.o AuWrite.o | make[2]: *** [libXau.la] Error 134 | make[2]: Leaving directory `/GIT/elphel393/poky/build/tmp/work/x86_64-linux/libxau-native/1_1.0.8-r0/build' | make[1]: *** [all-recursive] Error 1 | make[1]: Leaving directory `/GIT/elphel393/poky/build/tmp/work/x86_64-linux/libxau-native/1_1.0.8-r0/build' | make: *** [all] Error 2 | ERROR: oe_runmake failed
