Mark Hatle 4cb33dae15 bitbake: process.py: Handle SystemExit exception to eliminate backtrace
With an invalid layer, the desired error output should be:

  ERROR: The following layer directories do not exist:
  ERROR:    /this_path_does_not_exist
  ERROR: Please check BBLAYERS in .../build-invalid-layer/conf/bblayers.conf

Instead we were met with a backtrace:

Traceback (most recent call last):
  File "/scratch1/fray/xilinx/poky/bitbake/bin/bitbake", line 36, in <module>
    cookerdata.CookerConfiguration()))
...
  File "/scratch1/fray/xilinx/poky/bitbake/lib/bb/cookerdata.py", line 267, in parseBaseConfiguration
    self.data = self.parseConfigurationFiles(self.prefiles, self.postfiles)
  File "/scratch1/fray/xilinx/poky/bitbake/lib/bb/cookerdata.py", line 358, in parseConfigurationFiles
    sys.exit(1)
SystemExit: 1

(Bitbake rev: 3a2503c785a5cd9dca0dc68c3aec31b4bec7684b)

Signed-off-by: Mark Hatle <mark.hatle@kernel.crashing.org>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2020-09-05 11:45:16 +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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