Richard Purdie a6709152e9 bitbake: process/knotty: Improve early exception handling
The new server startup code means exceptions can happen when we aren't
setup to show them to the user correctly, leading to ugly tracebacks.

Add in some special case handling of BBHandledException to at least
ensure that common case doesn't traceback and the user sees meaningful
output.

In the future, the logging setup can likely be improved, as can the way
runCommand handles exceptions, they all should likely become real
exceptions again on the UI side.

[YOCTO #14022]
[YOCTO #14033]

(Bitbake rev: 6059d0e77f60ddb679049bd34478f41b1ab7995d)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2020-09-02 16:01:05 +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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