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grygorii tertychnyi 6961d96cba archiver: avoid empty incfile in ar_recipe
do_ar_recipe fails on perf recipe on line:

include ${@bb.utils.contains('PACKAGECONFIG', 'scripting', 'perf-perl.inc', '', d)}

1. "${...}" part expands into empty string
2. bb.utils.which() takes empty string and returns first directory name from bbpath
3. shutil.copy() fails on copying directory:

Exception: IsADirectoryError: [Errno 21] Is a directory: ......

Hence, check "incfile" variable on each step.

(From OE-Core rev: 3b393da7d2d15de12e2a8a9c11591078b40b188a)

Signed-off-by: grygorii tertychnyi <gtertych@cisco.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2019-11-14 13:20:59 +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.
S
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