Richard Purdie 8ecde1aa8f bitbake: process: Avoid bb.utils.timeout
I have a suspicion based on process traces that the flock() call is no
longer interrupted by SIGALRM and hence the timeout doesn't work. We
were relying on EINTR triggering around syscalls but python is likely
protecting us from that in modern versions.

Re-implement this code with a different mechanism which doesn't have
that potential issue.

(Bitbake rev: 8eb52afdfd4c3e6478d4f8cc56e99def3f1c924c)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2020-08-26 09:05:38 +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 251 MiB