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tavip merged 1 commit into from
Feb 25, 2025
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lkl: update documentation #572

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24 changes: 23 additions & 1 deletion Documentation/lkl.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -58,7 +58,7 @@ Building LKL on FreeBSD
Building LKL on Ubuntu
-----------------------

$ sudo apt-get install libfuse-dev libarchive-dev xfsprogs
$ sudo apt-get install libfuse-dev libarchive-dev xfsprogs libjsmn-dev

# Optional, if you would like to be able to run tests
$ sudo apt-get install btrfs-tools
Expand Down Expand Up @@ -126,6 +126,28 @@ and run:

$ make -C tools/lkl

LKL kernel configure
==================

You can configure LKL kernel just like you configured linux kernel source code by setting ARCH=lkl.
For example,the default configuration in defconfig may set "CONFIG_DEBUG_INFO=y".This option will
increase output size to about 130M. This is not negligible in some resource-constrained envirmonments.

$ make ARCH=lkl menuconfig

Set Kernel hacking --->Compile-time checks and compiler options --->Debug information
(Disable debug information),this should shrink size to about 15M.

$ make clean -C tools/lkl
$ make -C tools/lkl


As external lib/header detection only happens at a first build if the compilation environment changed
you may need to clean the configuration of build.

$ make clean-conf -C tools/lkl

This will also remove your configuration in .config,backup it as needed.

LKL hijack library
==================
Expand Down