Paul Eggleton 15fb7acb77 lib/oe/recipeutils: patch_recipe(): fix handling of values across includes/classes
If we were setting a variable and part of the variable's value was being
set in a class or a .inc file, we were still just setting the value
outright on the assumption that it was too hard to do otherwise. With
some careful use of the variable history we can do better for certain
situations i.e. when the recipe does not currently set the value
outright.

Additionally, correctly remove _appends for variables we are changing if
we're trying to remove the value added in the _append.

Fixes [YOCTO #12623] and partially fixes [YOCTO #9360].

(From OE-Core rev: f798d963db77db66a2a5a4b8d4c157d46ede417f)

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2018-12-03 12:20:00 +00:00
2014-01-02 12:58:54 +00:00
2018-02-24 10:31:45 +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.
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