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f46f6af1f2
If you make parsing fail (e.g. add something like:
X := "${@d.getVar('MCMACHINES').split()[1]}"
to meson.bbclass, then run "while true; do bitbake -g bash; done"
it will eventually hang. It appears the cancel_join_thread() call the
parsing failure triggers, breaks the results_queue badly enough that it
sits in read() indefintely (called from self.result_queue.get(timeout=0.25)).
The timeout only applies to lock aquisition, not the read call.
I've tried various other approaches such as using cancel_join_thread()
in other places but the only way things don't lock up is to avoid
cancel_join_thread() entirely for results_queue.
I do have a concern that this may adversely affect Ctrl+C handling
but equally, its broken now already and this appears to improve
things.
[YOCTO #14034]
(Bitbake rev: 0e0af15b84e07e6763300dcd092b980086b9b9c4)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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.