Martin Jansa 43f1cf2d3d image-artifact-names: introduce new bbclass and move some variables into it
* similar to kernel-artifact-names for other recipes/bbclasses which
  need to use some deployed artifacts

* bitbake.conf: move IMAGE_BASENAME, IMAGE_VERSION_SUFFIX, IMAGE_NAME,
  IMAGE_LINK_NAME variables

* image_types.bbclass: move IMAGE_NAME_SUFFIX variable

* currently IMAGE_NAME_SUFFIX is used only by image.bbclass,
  image_types.bbclass and meta/recipes-core/images/build-appliance-image_15.0.0.bb
  but if it's needed by some recipe which isn't itself an image, then
  it's useful in bitbake.conf, e.g. we have a recipe for creating
  VirtualBox appliances which combines .wic.vmdk with .ovf file to
  create .zip with appliance, but for that we need the filename of
  .wic.vmdk which now contains IMAGE_NAME_SUFFIX
  4980ce52a4/meta-luneos/recipes-core/images/luneos-emulator-appliance.inc (L24)

* we were hardcoding .rootfs suffix where needed, but for quite long
  time it's configurable with IMAGE_NAME_SUFFIX since:

  commit 380ee36811939d947024bf78de907e3c071b834f
  Author: Patrick Ohly <patrick.ohly@intel.com>
  Date:   Mon Mar 7 18:07:52 2016 +0100

    image creation: allow overriding .rootfs suffix

  and might not match with hardcoded .rootfs, so make it easier to
  use IMAGE_NAME_SUFFIX where needed even without inheritting whole
  image_types.bbclass

[YOCTO #12937]

(From OE-Core rev: 456b700d51a5052a285a8477304f902c335223be)

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2020-09-17 09:47:45 +01:00

QEMU Emulation Targets
======================

To simplify development, the build system supports building images to
work with the QEMU emulator in system emulation mode. Several architectures
are currently supported in 32 and 64 bit variants:

  * ARM (qemuarm + qemuarm64)
  * x86 (qemux86 + qemux86-64)
  * PowerPC (qemuppc only)
  * MIPS (qemumips + qemumips64)

Use of the QEMU images is covered in the Yocto Project Reference Manual.
The appropriate MACHINE variable value corresponding to the target is given
in brackets.
Description
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Readme 251 MiB