Paulo Neves 4a127a70a2 context.py: Do not mask exceptions needlessly.
There were a lot of assumptions in the controller import
code of context.py which were not true anymore.  These
assumptions reflected themselves by catching exceptions and
re-raising them with unhelpful error messages in other parts
of the code.

This commit does not fix the classes controller classes that
became broken after the refactor but at least it allows for
the exceptions to be thrown where the imports fail, thus
actually showing what exactly went wrong with the import.

An example of such an improvement is that before if the
controller class failed during it's init contructor the
controller would just be skipped and the task would just
complain it could not find the controller.  Now for example,
if there is a NamerError due to a variable not being
declared, the user will get that report.

(From OE-Core rev: 719b0e88b875b067551067874778061f99b8c4b4)

Signed-off-by: Paulo Neves <ptsneves@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2018-08-08 10:52:00 +01:00
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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