diff options
Diffstat (limited to 'meta-agl-core/classes/image_types_wic_workaround.bbclass')
| -rw-r--r-- | meta-agl-core/classes/image_types_wic_workaround.bbclass | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/meta-agl-core/classes/image_types_wic_workaround.bbclass b/meta-agl-core/classes/image_types_wic_workaround.bbclass new file mode 100644 index 000000000..1a287ff7c --- /dev/null +++ b/meta-agl-core/classes/image_types_wic_workaround.bbclass @@ -0,0 +1,32 @@ +# This is a workaround for the race condition between do_image_wic and other +# do_image_* tasks. It ensures that no other do_image_* task can be running and +# reading the rootfs directory at the same time as do_image_wic is modifying +# the /etc/fstab file in the rootfs directory. +# +# A much better fix has been submitted upstream [1], but we can't carry those +# modifications to `scripts/lib/wic` from poky easily in meta-agl. So instead +# we have this workaround until the upstream fix is accepted and backported. +# +# Serializing the image functions as done here impacts build speed but it's +# better to be slow and correct than to be fast and wrong. +# +# [1]: https://lists.openembedded.org/g/openembedded-core/topic/patch_5_6_wic_copy_rootfs/79592787, +# https://lists.openembedded.org/g/openembedded-core/topic/patch_6_6_wic_optimise/79592788 +# and related patches. +# +# Bug-AGL: SPEC-3621 + +def get_workaround_wic_typedeps(d): + if d.getVar('USING_WIC'): + fstypes = d.getVar('IMAGE_FSTYPES').split() + basetypes = set() + for fs in fstypes: + # Add the basetype to our set of basetypes in use + t = fs.split('.')[0] + if t != "wic": + basetypes.add(t) + return ' '.join(basetypes) + else: + return '' + +IMAGE_TYPEDEP:wic += "${@get_workaround_wic_typedeps(d)}" |