Ross Burton 85b6301c61 waf: don't assume the waf intepretter is good
Waf typically uses `python` as the intepretter but inside a task this
does not exist.  Typically this is solved by patching waf (see the
glmark2 recipe) but not all versionf of Waf support Python 3 so we can't
assume a specific interpretter.

Instead, create a new variable WAF_PYTHON for the correct interpretter,
and default this to `python3`.  If the user has a recipe that needs
Python 2 then this can be changed in the recipe.

(From OE-Core rev: 802e80d35e6374b9b80f89068d00b84fe2d04ca1)

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2020-10-17 23:22:19 +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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