Difference between revisions of "Poky manual"
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bitbake u-boot device-tree linux-xlnx core-image-elphel393 | bitbake u-boot device-tree linux-xlnx core-image-elphel393 | ||
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| − | * Poky 2. | + | * Poky 2.0 Jethro |
<font size='2'> | <font size='2'> | ||
| − | git clone https://git.elphel.com/Elphel/elphel393.git # or git clone git@git.elphel.com:Elphel/elphel393.git # if ssh public key is uploaded | + | git clone -b jethro https://git.elphel.com/Elphel/elphel393.git # or git clone git@git.elphel.com:Elphel/elphel393.git # if ssh public key is uploaded |
# then follow the same steps as for Rocko | # then follow the same steps as for Rocko | ||
</font> | </font> | ||
Revision as of 10:25, 26 June 2018
Contents
Description
- Building embedded Linux image for Zynq ARMv7 platform - Elphel 10393 board
- Yocto Poky revision = 2.0 (Jethro), recently updated to 2.4 (Rocko)
Features
- Environment is set up with a single script
- All Elphel projects are configured for Eclipse IDE:
- fpga projects (verilog)
- kernel
- applications projects
- All steps for fpga projects are run from Eclipse IDE
- Once everything is built it supports updating software projects (files and binaries) on the target system
- access is set up in yocto's local.conf (see setup.py output) + ssh-copy-id
- bitbake some-app -c target_scp from the command line or Eclipse IDE - see examples in elphel-apps-... at Git
Supported OSes
- Kubuntu 14.04.3 LTS x64 (until June 2016)
- Kubuntu 16.04 x64 (as of June 2016)
Required packages
- For Poky 2.0 Jethro see Yocto Project Poky 2.0 mega-manual
- For Poky 2.4 Rocko see Yocto Project Poky 2.4 mega-manual
Other dependencies
sudo apt-get install python-numpy
Output files
The names are listed as they appear in the u-boot configuration header file - actual output files have different names:
| File(s) | Description |
|---|---|
| boot.bin | u-boot as the first stage bootloader = Secondary Program Loader (SPL) 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, rootfs.ubi, rootfs.tar.gz | rootfs in different formats - *.ubi* for NAND, *.tar.gz for mmc |
The file are located at elphel393/bootable-images/, which is a link to poky's deploy directory elphel393/poky/build/tmp/deploy/images/elphel393/
- complete set of files for rootfs in NAND Flash: elphel393/bootable-images/nand/
- complete set of files for rootfs on MMC (micro SD card): elphel393/bootable-images/mmc/
Write files to media and boot
Boot from micro SD card
- Use recovery or regular μSD card
- EXT4 partition mounted as /
Boot from NAND flash
- The default boot option - power on.
- A UBIFS image is written to /dev/mtd4 - is mounted as /
Notes
- Read more about boot options.
Setup
- Poky 2.4 Rocko
git clone -b rocko https://git.elphel.com/Elphel/elphel393.git cd elphel393 ./setup.py cd poky . ./oe-init-build-env bitbake u-boot device-tree linux-xlnx core-image-elphel393
- Poky 2.0 Jethro
git clone -b jethro https://git.elphel.com/Elphel/elphel393.git # or git clone git@git.elphel.com:Elphel/elphel393.git # if ssh public key is uploaded # then follow the same steps as for Rocko
Notes:
- The last line builds all targets.
- If python-numpy was not installed
x393.h will not be generated > bitbake linux-xnlx will fail. To recover: 1. sudo apt install python-numpy 2. run bitbake linux-xlnx -c link -f
- if rerun setup.py updates all repositories and reruns other procedures.
$ ./setup.py if you notice the kernel got updated then you might need to restart with bitbake linux-xlnx -c link -f
Compare built vs deployed software versions
cd elphel393 ./check_versions.py root@192.168.0.9
Notes:
- deployed = running on the target system
Build
All targets
bitbake u-boot device-tree linux-xlnx core-image-elphel393
Bootloader
bitbake u-boot
Output
- boot.bin
- 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
Device tree
bitbake device-tree
Output
- devicetree.dtb
Kernel
bitbake linux-xlnx
Output
- uImage
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
Rootfs
bitbake core-image-elphel393
Output
- rootfs.tar.gz
- rootfs.ubi,rootfs.ubifs
Details for development
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 ?!!!!!!!
Force to always execute recipe starting from a certain task:
recipe-outside-of-task: do_compile[nostamp]="1"
or
recipe-class-inside-task: d.setVarFlag('do_compile', 'nostamp', '1')
- clone git repo over https in a recipe
SRC_URI = "git://git.elphel.com/project.git;protocol=https;branch=master"
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
