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Paul Eggleton ea01bd31c3 devtool: fix devtool upgrade with reproducible_builds class
If the reproducible_build class is inherited then there may be a
"source-date-epoch" subdirectory in a fetched source tree; devtool
upgrade was not expecting that in the upgraded source. Take a small
snippet of code from recipetool create which already handles this,
and make it a shared function that can be used in both places.

Additionally, fix an assumption that the source is always in a
subdirectory in the cleanup code that blocked debugging this.

[YOCTO #13635]

(From OE-Core rev: 0d642861cd9cf034b8d4951433980addc215d4fd)

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2019-11-21 23:08:20 +00:00
2019-11-21 23:08:20 +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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