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lkl: update documentation

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Add needed build dependency and information about how to change the  configuration.

Signed-off-by: MiaoMing Chen <miaomingc@outlook.com>
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miaomingc
2025-02-25 18:27:40 +08:00
parent ef9b11c686
commit 8b8f21cf63
1 changed files with 23 additions and 1 deletions
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24
Documentation/lkl.txt
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@@ -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
@@ -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
==================