Richard Purdie 9827758ebe bitbake: fetch2/git: Avoid races over mirror tarball creation
There is a potential race over the mirror tarballs where a partial git repo
could be extracted causing fetcher failures if the tarball is being rewritten
whilst another build accesses it.

Create the mirror tarball atomically to avoid this.

[YOCTO #14441]

(Bitbake rev: e3da0ecbd282da060b52a4bcf3ed36497295fde0)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit 3250bc950c56bd7dd2114df26e5a8e13b04ceac8)
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2021-10-23 17:47:38 +01:00
2021-10-07 15:10:33 +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 250 MiB