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When Layer A and Layer B depend on each other, then we will end up in a recursive loop in function recurse_dependencies(). To avoid such situation before making the recursive function call we check whether or not we have already processed this layer. e.g. without this patch, running this script on layers with dependency loops, we are seeing: $ yocto-check-layer -d /srv/work/oe/meta-openembedded/ INFO: Detected layers: INFO: meta-python: LayerType.SOFTWARE, /srv/work/oe/meta-openembedded/meta-python INFO: meta-filesystems: LayerType.SOFTWARE, /srv/work/oe/meta-openembedded/meta-filesystems INFO: meta-gnome: LayerType.SOFTWARE, /srv/work/oe/meta-openembedded/meta-gnome INFO: meta-xfce: LayerType.SOFTWARE, /srv/work/oe/meta-openembedded/meta-xfce INFO: meta-networking: LayerType.SOFTWARE, /srv/work/oe/meta-openembedded/meta-networking INFO: meta-initramfs: LayerType.SOFTWARE, /srv/work/oe/meta-openembedded/meta-initramfs INFO: meta-oe: LayerType.SOFTWARE, /srv/work/oe/meta-openembedded/meta-oe INFO: meta-multimedia: LayerType.SOFTWARE, /srv/work/oe/meta-openembedded/meta-multimedia INFO: meta-perl: LayerType.SOFTWARE, /srv/work/oe/meta-openembedded/meta-perl INFO: meta-webserver: LayerType.SOFTWARE, /srv/work/oe/meta-openembedded/meta-webserver INFO: INFO: Setting up for meta-python(LayerType.SOFTWARE), /srv/work/oe/meta-openembedded/meta-python DEBUG: Processing dependencies core openembedded-layer for layer meta-python. DEBUG: Processing dependencies core networking-layer for layer meta-oe. DEBUG: Processing dependencies core openembedded-layer meta-python for layer meta-networking. DEBUG: Processing dependencies core networking-layer for layer meta-oe. DEBUG: Processing dependencies core openembedded-layer meta-python for layer meta-networking. DEBUG: Processing dependencies core networking-layer for layer meta-oe. DEBUG: Processing dependencies core openembedded-layer meta-python for layer meta-networking. DEBUG: Processing dependencies core networking-layer for layer meta-oe. DEBUG: Processing dependencies core openembedded-layer meta-python for layer meta-networking. DEBUG: Processing dependencies core networking-layer for layer meta-oe. DEBUG: Processing dependencies core openembedded-layer meta-python for layer meta-networking. DEBUG: Processing dependencies core networking-layer for layer meta-oe. DEBUG: Processing dependencies core openembedded-layer meta-python for layer meta-networking. DEBUG: Processing dependencies core networking-layer for layer meta-oe. DEBUG: Processing dependencies core openembedded-layer meta-python for layer meta-networking. DEBUG: Processing dependencies core networking-layer for layer meta-oe. DEBUG: Processing dependencies core openembedded-layer meta-python for layer meta-networking. DEBUG: Processing dependencies core networking-layer for layer meta-oe. DEBUG: Processing dependencies core openembedded-layer meta-python for layer meta-networking. DEBUG: Processing dependencies core networking-layer for layer meta-oe. DEBUG: Processing dependencies core openembedded-layer meta-python for layer meta-networking. DEBUG: Processing dependencies core networking-layer for layer meta-oe. DEBUG: Processing dependencies core openembedded-layer meta-python for layer meta-networking. ... ... ... [keep repeating] This patch fixes this situation. (From OE-Core rev: 171900b4bcb06416685ce90b63114a10fefe0b94) Signed-off-by: Nicolas Dechesne <nicolas.dechesne@linaro.org> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This directory contains Various useful scripts for working with OE builds