|author||Andrew Jeffery <email@example.com>||Wed Sep 15 09:12:36 2021 +0930|
|committer||Patrick Williams <firstname.lastname@example.org>||Thu Sep 16 12:54:14 2021 +0000|
bitbake: Use IPK packaging for rootfs assembly bitbake offers a choice of DEB, RPM or IPK packaging. To a degree the choice is functionally arbitrary for image generation but control over the package format becomes important if we want to: 1. Include runtime package management functionality in the firmware image 2. Mess about with the packages on the build system With respect to 1 the IPK format and opkg (an ipk package manager) are designed for embedded systems - by contrast to RPMs have heavier dependencies and a greater impact on the size and complexity of the firmware image. Regarding 2, the embedded nature and the need for opkg to work without much fuss leads to a lower configuration barrier by comparison to RPMs. With ipk it becomes possible to reuse the packages built during image preparation for core analysis without needing to generate an SDK: ``` $ export LD_LIBRARY_PATH=./tmp/work/x86_64-linux/opkg-native/*/recipe-sysroot-native/usr/lib $ MY_DEBUG_ROOT=tmp/rootfs-debug $ ./tmp/sysroots-components/x86_64/opkg-native/usr/bin/opkg \ -f ./tmp/work/p10bmc-openbmc-linux-gnueabi/obmc-phosphor-image/*/opkg.conf \ -o $MY_DEBUG_ROOT \ update $ fakeroot ./tmp/sysroots-components/x86_64/opkg-native/usr/bin/opkg \ -f ./tmp/work/p10bmc-openbmc-linux-gnueabi/obmc-phosphor-image/1.0-r0/opkg.conf \ -o $MY_DEBUG_ROOT \ install dbus-sensors dbus-sensors-dbg $ gdb-multiarch (gdb) set solib-absolute-prefix .../tmp/rootfs-debug (gdb) add-auto-load-safe-path .../tmp/rootfs-debug (gdb) file tmp/rootfs-debug/usr/bin/nvmesensor (gdb) core-file obmcdump_17_9597/core.nvmesensor.0.aae91b519d0e4e0e8bbe746e3f6cd25f.2779.9594000000 Core was generated by `/usr/bin/nvmesensor'. Program terminated with signal SIGABRT, Aborted. pthread_kill.c:45 45 pthread_kill.c: No such file or directory. (gdb) bt pthread_kill.c:45 ../sysdeps/posix/raise.c:26 /home/andrew/src/openbmc/openbmc/build/p10bmc/tmp/rootfs-debug/usr/lib/libstdc++.so.6 /home/andrew/src/openbmc/openbmc/build/p10bmc/tmp/rootfs-debug/usr/lib/libstdc++.so.6 /home/andrew/src/openbmc/openbmc/build/p10bmc/tmp/rootfs-debug/usr/lib/libstdc++.so.6 /home/andrew/src/openbmc/openbmc/build/p10bmc/tmp/rootfs-debug/usr/lib/libstdc++.so.6 "xyz.openbmc_project.NVMeSensor", this=0x488f04) at /usr/include/sdbusplus/bus.hpp:234 ../../../../../../workspace/sources/dbus-sensors/src/NVMeSensorMain.cpp:159 (gdb) ``` This approach documented in the Poky Reference Manual: https://www.yoctoproject.org/docs/1.0/poky-ref-manual/poky-ref-manual.html#platdev-gdb-remotedebug-launch-gdb-inferiorbins Switch all machines to IPK to align the debugging experience with upstream's documentation and to facilitate efficient use of packaged software at runtime.  https://openwrt.org/docs/guide-user/additional-software/opkg Change-Id: I8ef526add2d7a6790de1b3eb3fb85cd39b864f23 Signed-off-by: Andrew Jeffery <email@example.com> Signed-off-by: Patrick Williams <firstname.lastname@example.org>
OpenBMC is a Linux distribution for management controllers used in devices such as servers, top of rack switches or RAID appliances. It uses Yocto, OpenEmbedded, systemd, and D-Bus to allow easy customization for your platform.
sudo apt-get install -y git build-essential libsdl1.2-dev texinfo gawk chrpath diffstat
sudo dnf install -y git patch diffstat texinfo chrpath SDL-devel bitbake \ rpcgen perl-Thread-Queue perl-bignum perl-Crypt-OpenSSL-Bignum sudo dnf groupinstall "C Development Tools and Libraries"
git clone email@example.com:openbmc/openbmc.git cd openbmc
Any build requires an environment set up according to your hardware target. There is a special script in the root of this repository that can be used to configure the environment as needed. The script is called
setup and takes the name of your hardware target as an argument.
The script needs to be sourced while in the top directory of the OpenBMC repository clone, and, if run without arguments, will display the list of supported hardware targets, see the following example:
$ . setup <machine> [build_dir] Target machine must be specified. Use one of: centriq2400-rep f0b fp5280g2 gsj hr630 hr855xg2 lanyang mihawk msn neptune nicole olympus olympus-nuvoton on5263m5 p10bmc palmetto qemuarm quanta-q71l romulus s2600wf stardragon4800-rep2 swift tiogapass vesnin witherspoon witherspoon-tacoma yosemitev2 zaius
Once you know the target (e.g. romulus), source the
setup script as follows:
. setup romulus
For evb-ast2500, please use the below command to specify the machine config, because the machine in
meta-aspeed layer is in a BSP layer and does not build the openbmc image.
TEMPLATECONF=meta-evb/meta-evb-aspeed/meta-evb-ast2500/conf . openbmc-env
Additional details can be found in the docs repository.
The OpenBMC community maintains a set of tutorials new users can go through to get up to speed on OpenBMC development out here
Commits submitted by members of the OpenBMC GitHub community are compiled and tested via our Jenkins server. Commits are run through two levels of testing. At the repository level the makefile
make check directive is run. At the system level, the commit is built into a firmware image and run with an arm-softmmu QEMU model against a barrage of CI tests.
Commits submitted by non-members do not automatically proceed through CI testing. After visual inspection of the commit, a CI run can be manually performed by the reviewer.
Automated testing against the QEMU model along with supported systems are performed. The OpenBMC project uses the Robot Framework for all automation. Our complete test repository can be found here.
Support of additional hardware and software packages is always welcome. Please follow the contributing guidelines when making a submission. It is expected that contributions contain test cases.
Issues are managed on GitHub. It is recommended you search through the issues before opening a new one.
First, please do a search on the internet. There's a good chance your question has already been asked.
For general questions, please use the openbmc tag on Stack Overflow. Please review the discussion on Stack Overflow licensing before posting any code.
For technical discussions, please see contact info below for Discord and mailing list information. Please don't file an issue to ask a question. You'll get faster results by using the mailing list or Discord.
Features In Progress
Features Requested but need help
Dive deeper into OpenBMC by opening the docs repository.
The Technical Steering Committee (TSC) guides the project. Members are: