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The first 2 calls to add_layer_dependencies() are here to add all dependencies for the 'layer under test' and the additional layers provided by the users. In both cases, we use misssing_dependencies boolean to indicate if any dependency is missing. But we then never really use missing_dependencies. Instead the script is calling add_layer_dependencies() again (for both the layer under test, and the additional layers) to detect if there are any missing dependency. As a result, we are trying to add again all dependencies, and we can see that from the traces: INFO: Detected layers: INFO: meta-aws: LayerType.SOFTWARE, /work/oe/sources/meta-aws INFO: checklayer: Doesn't have conf/layer.conf file, so ignoring INFO: INFO: Setting up for meta-aws(LayerType.SOFTWARE), /work/oe/sources/meta-aws INFO: Adding layer meta-python INFO: Adding layer meta-oe INFO: Adding layer meta-networking --> INFO: Adding layer meta-python INFO: meta-python is already in /work/oe/poky/master/build-checklayer/conf/bblayers.conf INFO: Adding layer meta-oe INFO: meta-oe is already in /work/oe/poky/master/build-checklayer/conf/bblayers.conf INFO: Adding layer meta-networking INFO: meta-networking is already in /work/oe/poky/master/build-checklayer/conf/bblayers.conf <-- INFO: Getting initial bitbake variables ... The code appears more complex than it should, and we can simply replace the complex if statement by using missing_dependencies, and avoid duplicating the call to add_layer_dependencies(). (From OE-Core rev: 84e63d179d935a071730e89a0963bb9ae867c93b) Signed-off-by: Nicolas Dechesne <nicolas.dechesne@linaro.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org> (cherry picked from commit fceb84f7bc472731b8f96ee1ebf0f4485943226c) 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.