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Richard Purdie e2af21d119 lib/oe/package_manager: Avoid race problems when calling list_pkgs()
list_pkgs() for rpm calls RpmPM() which would try and create a copy of the
package feed. This can be called for example from buildhistory whilst some
other task may be working on an SDK or image construction, causing the package
feed to disappear part way through an operation.

Avoid the need to copy the package index just to list the installed
packages, avoiding the race.

(From OE-Core rev: d05fa49e06034913e22c223803c98cb265e2ae58)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2018-11-16 11:46:07 +00:00
2014-01-02 12:58:54 +00:00
2018-02-24 10:31:45 +00:00

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.
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