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Questions tagged [bitbake]

22 questions
6
votes
2 answers

Meaning of ?= and ??= in bitbake/yocto

What does the different assignment types mean in bitbake recipe scripts, such as: BB_NUMBER_THREADS ?= "${@oe.utils.cpu_count()}" PARALLEL_MAKE ?= "-j ${@oe.utils.cpu_count()}" MACHINE ??= "qemux86" What of above is analogous to Ruby's…
Frankie_Fomalhaut
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3
votes
1 answer

What is the right way to store BitBake configuration under git?

What is correct way to keep track of bitbake configuration and used layers in git?
senx
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3
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0 answers

systemd service will not start automatically at boot-up

I've been struggling to solve this for 2 or 3 days now. I am using Yocto to customize a Linux build. I have a systemd service called app2.service as below. [Unit] Description=app2 ConditionPathExists=/app After=network.target uncrypte_app.service…
Engineer999
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3
votes
1 answer

Adding iptables to yocto causes image do_rootfs to fail

My image builds nicely with kernel 4.13 (set in local.conf) and all of my recipes. When I try to add the iptables recipe (v1.6) to my image, the do_rootfs task fails with the following error: ERROR: image-dev-0.7-r0 do_rootfs: Error executing a…
bam
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1
vote
1 answer

"-dev package mylib-dev contains non-symlink" error when building lib using Yocto bitbake

I am trying to build Linux distribution using Yocto project, the target board is STM32MP157A-DK1 board ,I am using distribution package and meta data delivered by STMicroelectronics for OpenSTLinux. I want to add c++ library based on cmake to my…
Hossam Alzomor
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1
vote
1 answer

How do I edit '/etc/ld.so.conf' in a yocto recipe?

As suggested by Zac Anger, i copy this question over here: I have a yocto recipe in which I copy/install some stuff to an image. After that, I want to add a line to the /etc/ld.so.conf file like this, so that the dynamic loader finds my library…
schande
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1
vote
0 answers

Compiling CFLAGS in a Yocto Recipe File

Issue: I have 2 macros I added in a c file and I have 2 machines. Using Yocto recipe I wish to build the code with specific macros for specific machines. Breaking down the issue in sub parts - hello.c // Simple hello.c…
Nathan
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1
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1 answer

Reusing source files between machines in bitbake

My goal is to share source files between some machines, but not all. In this example, machine_a and machine_b have source directories that are exact copies of each other an I'd like to combine them together somehow to reduce the…
andrey
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1
vote
0 answers

understanding datastore in bitbake

I am new to bitbake. I am going through the user manual for learning and I got a doubt in the section quoted below 3.5.3. Passing Information Into the Build Task Environment When running a task, BitBake tightly controls the execution environment of…
jeyshree
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1
vote
0 answers

How to start using google tests on a Yocto(Open Embedded) System

I'm doing a project for ARM64 devices and am using Linux Embedded as the OS. I am trying to using Google Tests but when running bitbake, it is failing. Heres the error: | CMake Error at…
Md. Mohsin Hussain
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1
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2 answers

Yocto - patch has not been applied

I am working with Linux built with Yocto. I need to add some changes to /etc/ssh/sshd_config file. I created the following patch file using meld: --- a/sshd_config +++ b/sshd_config @@ -116,3 +116,8 @@ # AllowTcpForwarding no # PermitTTY no # …
tomi7654
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1
vote
0 answers

Yocto adding multiple system services to recipe file

I am modifying a Yocto .bb recipe file to add and enable 3 systemd services in my image. Below shows the bottom of my recipe file with just two services added and enabled. This works! app1.service is a one shot basic service that runs once and…
Engineer999
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0
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0 answers

How to modify timesyncd.conf in a yocto recipe

I have a yocto build and now I am trying to write a recipe in which I can adjust the parameters in the configuration file under /etc/systemd/timesyncd.conf. Responsible for the file is probably the recipe under…
schande
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0
votes
1 answer

Get bitbake to use a different locale

I'm running through the Yocto Quick Build tutorial, and I've got to the command bitbake core-image-sato This is producing the error Your system need to support the en_US.UTF-8 locale. Can I change this so it uses the en_GB.UTF-8 locale? I don't…
Matt Ellen
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0
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0 answers

Creating a separate image for boot partition in Yocto

I have a Yocto Linux image with two partitions: boot and rootfs. I would like to create two separate images: one with rootfs and the second one with bootstrap and u-boot files. I have two questions about it. Is there a better way to do it than…
user1111
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