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dev-manual, kernel-dev: Working kernel flow process using devtool

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A work-in-progress of an example that modifies the kernel
using the devtool.  The procedure is not complete yet as it
does not run properly.

(From yocto-docs rev: 462ba2e46f237c294f05805ad5044291a085975d)

Signed-off-by: Scott Rifenbark <srifenbark@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Scott Rifenbark
2017-08-30 13:34:52 -07:00
committed by Richard Purdie
parent 2a1bdf7416
commit ea256df2a8
3 changed files with 408 additions and 369 deletions
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22
documentation/kernel-dev/kernel-dev-intro.xml
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@@ -108,6 +108,16 @@
"<ulink url='&YOCTO_DOCS_DEV_URL;#cloning-the-poky-repository'>Cloning the <filename>poky</filename> Repository</ulink>"
section in the Yocto Project Development Manual to set up your
Source Directory.
<note>
Be sure you check out the appropriate development branch or
by tag to get the version of Yocto Project you want.
See the
"<ulink url='&YOCTO_DOCS_DEV_URL;#checking-out-by-branch-in-poky'>Checking Out by Branch in Poky</ulink>"
and
"<ulink url='&YOCTO_DOCS_DEV_URL;#checkout-out-by-tag-in-poky'>Checking Out by Tag in Poky</ulink>"
sections in the Yocto Project Development Manual for more
information.
</note>
</para>
<para>
@@ -156,7 +166,7 @@
building for the QEMU emulator in 32-bit mode.
However, if you are not, you need to set the
<filename>MACHINE</filename> variable appropriately in
your <filename>local.conf</filename> file found in the
your <filename>conf/local.conf</filename> file found in the
<ulink url='&YOCTO_DOCS_REF_URL;#build-directory'>Build Directory</ulink>
(i.e. <filename>~/poky/build</filename> in this example).
</para>
@@ -208,6 +218,7 @@
Use BitBake to build the extensible SDK specifically for
the Minnowboard:
<literallayout class='monospaced'>
$ cd ~/poky/build
$ bitbake core-image-minimal -c populate_sdk_ext
</literallayout>
Once the build finishes, you can find the SDK installer
@@ -290,12 +301,9 @@
If you were building for actual hardware and not for
emulation, you could flash the image to a USB stick
on <filename>/dev/sdd</filename> and boot your device.
Use a command similar to the following command to flash
the image:
<literallayout class='monospaced'>
$ sudo dd if=tmp/deploy/images/<replaceable>architecture</replaceable>/core-image-minimal-<replaceable>architecture</replaceable>.wic of=/dev/sdd bs=1MB
$ sync
</literallayout>
For an example that uses a Minnowboard, see the
<ulink url='https://wiki.yoctoproject.org/wiki/TipsAndTricks/KernelDevelopmentWithEsdk'>TipsAndTricks/KernelDevelopmentWithEsdk</ulink>
Wiki page.
</para></listitem>
</orderedlist>
</para>