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Khem Raj 47cc12f9df ruby: Link with libucontext on musl
coroutines in ruby 2.7+ needs ucontext APIs which are not available in
musl but an external library is available to provide them so use it

Use cached values for ac_cv_func_isnan and ac_cv_func_isinf this is not
detected correctly by configure on musl

on ARM drop using old arm32 implementation of coroutine which is slow and
inefficient

(From OE-Core rev: a2b1af47316a9f5c522db0c9feff1fbe0d39e022)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
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>
2020-05-05 08:45:30 +01:00
2020-05-05 08:45:30 +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.
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