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This section explains how to enable and build a debug image using the Yocto setup. This is intended for developers who need deeper visibility into the system behavior, troubleshooting, and kernel-level debugging. To generate a debug build, you simply include the debug.yml kas configuration fragment in your build command, which enables the DEBUG_BUILD=1 configuration. To understand which kernel defconfig and config fragments are used when DEBUG_BUILD is set to 1, see Kernel recipes.

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Configuration Parameters

The following table describes the build tags for the current release. These values will be need to be substituted in the build commands.
Release TagIdentifier
meta-qcom-release-tagqli-2.0

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Build Instructions

  • Download Qualcomm’s Yocto layer meta-qcom. For the latest <meta-qcom-release-tag>, see Configuration Parameters. 
    git clone https://github.com/qualcomm-linux/meta-qcom -b <meta-qcom-release-tag>
  • Build the software image using kas. You define build targets based on machine and distro combinations. 
    kas build meta-qcom/ci/iq-9075-evk.yml:meta-qcom/ci/qcom-distro.yml:meta-qcom/ci/debug.yml
  • The build creates a single tarball containing all the relevant files to perform a full clean flash, including partition metadata, boot firmware, ESP partition and the rootfs. After a successful build, check if the qcomflash tarball exists in the build artifacts. The following examples use qcom-multimedia-proprietary-image as the image name. 
    ls build/tmp/deploy/images/iq-9075-evk/qcom-multimedia-proprietary-image-iq-9075-evk.rootfs.qcomflash.tar.gz

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Next steps