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SDKBuild » History » Version 9

Paul Kocialkowski, 01/21/2014 04:17 PM

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h1. SDK Build
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This explains how to build the Replicant SDK.
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h2. Prerequisites
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Before building, you must make sure that:
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* You have installed the build dependencies: [[BuildDependenciesInstallation]]
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* You have downloaded Replicant 4.2 sources: [[ReplicantSources]]
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* Your sources are up to date: [[ReplicantSources#DownloadingUpdating-the-source-from-the-repos|Downloading/Updating the source from the repos]]
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* Your terminal is running in the directory where the sources were downloaded
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h2. Warning
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*Do not build as root, always build as user.*
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h2. Building
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Setup the build environment: 
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<pre>
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source build/envsetup.sh
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lunch sdk-eng
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export ANDROID_JAVA_HOME=$JAVA_HOME
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</pre>
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Start the build:
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<pre>
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parallel_tasks=$(echo "$(grep 'processor' /proc/cpuinfo | wc -l ) + 1" | bc)
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make -j$parallel_tasks sdk
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</pre>
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The -jn argument is to indicate the number of parallel tasks during the build. 
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You can remove it from the command line to have only one task at a time. With fast hardware, best results will come with @-j9@, @-j16@ and @-j32@.
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h2. Output files
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The produced files are located at:
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* built SDK: @out/host/linux-x86/sdk/@
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* built host tools: @out/host/linux-x86/bin/@