vruntime: add BBMASK to reduce multiconfig parse time

The vruntime multiconfigs (vruntime-aarch64, vruntime-x86-64) trigger
a full BitBake parse of all layers, but only need ~318 recipes to build
the vdkr/vpdmn container runtime stacks. BBMASK set in the vruntime
distro conf only affects parsing for those multiconfigs; the main build
is unaffected.

Add three .inc files, each independently disableable, that mask unused
recipes:

 - vruntime-bbmask.inc: meta-virtualization layer (~88 masks covering
   virtualization platforms, unused container orchestration/tooling,
   and individual go libraries)
 - vruntime-bbmask-oe-core.inc: oe-core graphics subdirs, multimedia,
   sato, and rt categories
 - vruntime-bbmask-meta-oe.inc: meta-oe, meta-networking categories,
   plus entire meta-python, meta-filesystems, and meta-webserver layers

Mask patterns were generated from bitbake -g dependency graph analysis
of both aarch64 and x86-64 targets, with all 318 needed PNs (including
-native variants) cross-checked against the patterns. Orphaned bbappend
files in other layers are also masked to prevent parse errors.

Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>

1 files changed, 41 insertions, 0 deletions

diff --git a/conf/distro/include/vruntime-bbmask-oe-core.inc b/conf/distro/include/vruntime-bbmask-oe-core.inc
new file mode 100644
index 00000000..34db8dd2
--- /dev/null
+++ b/conf/distro/include/vruntime-bbmask-oe-core.inc
@@ -0,0 +1,41 @@
+# SPDX-FileCopyrightText: Copyright (C) 2025 Bruce Ashfield
+#
+# SPDX-License-Identifier: MIT
+#
+# BBMASK for oe-core (meta) layer in vruntime multiconfig builds.
+#
+# Masks entire recipe categories with zero recipes in the vruntime
+# dependency graph (verified via bitbake -g and PN-level cross-check).
+#
+# KEPT: recipes-bsp, recipes-connectivity, recipes-core, recipes-devtools,
+#       recipes-extended, recipes-gnome, recipes-kernel, recipes-support
+
+# ---------------------------------------------------------------------------
+# Graphics - mask only subdirs with zero needed recipes (39 of 49 subdirs)
+# Keep: wayland, libsdl2, virglrenderer, libepoxy, drm, mesa, spir,
+#       xorg-lib, xorg-proto, xorg-app, xorg-util (qemu-system-native deps)
+# ---------------------------------------------------------------------------
+BBMASK += "/meta/recipes-graphics/(?!wayland|libsdl2|virglrenderer|libepoxy|drm|mesa|spir|xorg-lib|xorg-proto|xorg-app|xorg-util)"
+
+# ---------------------------------------------------------------------------
+# Multimedia - mask all except alsa/ and libpng/ (qemu-system-native deps)
+# ---------------------------------------------------------------------------
+BBMASK += "/meta/recipes-multimedia/(?!alsa|libpng)"
+
+# ---------------------------------------------------------------------------
+# Sato desktop (~25 recipes) - Matchbox, webkit, desktop UI
+# ---------------------------------------------------------------------------
+BBMASK += "/meta/recipes-sato/"
+
+# ---------------------------------------------------------------------------
+# RT kernel (~4 recipes) - Real-time kernel, not needed for containers
+# ---------------------------------------------------------------------------
+BBMASK += "/meta/recipes-rt/"
+
+# ---------------------------------------------------------------------------
+# Orphaned bbappends in other layers (base recipes masked above)
+# ---------------------------------------------------------------------------
+# meta-yocto-bsp bbappend for masked oe-core graphics
+BBMASK += "meta-yocto-bsp/recipes-graphics/xorg-xserver/xserver-xf86-config"
+# meta-erlang bbappend for oe-core mesa (mesa is kept, but libglu not needed)
+BBMASK += "meta-erlang/recipes-graphics/mesa/libglu"