fix: comprehensive boot warnings and exceptions — fixable silenced, unfixable diagnosed

Build system (5 gaps hardened):
- COOKBOOK_OFFLINE defaults to true (fork-mode)
- normalize_patch handles diff -ruN format
- New 'repo validate-patches' command (25/25 relibc patches)
- 14 patched Qt/Wayland/display recipes added to protected list
- relibc archive regenerated with current patch chain

Boot fixes (fixable):
- Full ISO EFI partition: 16 MiB → 1 MiB (matches mini, BIOS hardcoded 2 MiB offset)
- D-Bus system bus: absolute /usr/bin/dbus-daemon path (was skipped)
- redbear-sessiond: absolute /usr/bin/redbear-sessiond path (was skipped)
- daemon framework: silenced spurious INIT_NOTIFY warnings for oneshot_async services (P0-daemon-silence-init-notify.patch)
- udev-shim: demoted INIT_NOTIFY warning to INFO (expected for oneshot_async)
- relibc: comprehensive named semaphores (sem_open/close/unlink) replacing upstream todo!() stubs
- greeterd: Wayland socket timeout 15s → 30s (compositor DRM wait)
- greeter-ui: built and linked (header guard unification, sem_compat stubs removed)
- mc: un-ignored in both configs, fixed glib/libiconv/pcre2 transitive deps
- greeter config: removed stale keymapd dependency from display/greeter services
- prefix toolchain: relibc headers synced, _RELIBC_STDLIB_H guard unified

Unfixable (diagnosed, upstream):
- i2c-hidd: abort on no-I2C-hardware (QEMU) — process::exit → relibc abort
- kded6/greeter-ui: page fault 0x8 — Qt library null deref
- Thread panics fd != -1 — Rust std library on Redox
- DHCP timeout / eth0 MAC — QEMU user-mode networking
- hwrngd/thermald — no hardware RNG/thermal in VM
- live preload allocation — BIOS memory fragmentation, continues on demand

local/recipes/qt/qtwayland/source/tests/manual/hwlayer-compositor/CMakeLists.txt

@@ -0,0 +1,48 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+cmake_minimum_required(VERSION 3.16)
+project(hwlayer-compositor LANGUAGES CXX)
+
+set(CMAKE_AUTOMOC ON)
+
+if(NOT DEFINED INSTALL_EXAMPLESDIR)
+    set(INSTALL_EXAMPLESDIR "examples")
+endif()
+
+set(INSTALL_EXAMPLEDIR "${INSTALL_EXAMPLESDIR}/wayland/hwlayer-compositor")
+
+find_package(Qt6 REQUIRED COMPONENTS Core Gui Qml)
+
+qt_add_executable(hwlayer-compositor
+    main.cpp
+)
+
+set_target_properties(hwlayer-compositor PROPERTIES
+    WIN32_EXECUTABLE TRUE
+    MACOSX_BUNDLE TRUE
+)
+
+target_link_libraries(hwlayer-compositor PUBLIC
+    Qt::Core
+    Qt::Gui
+    Qt::Qml
+)
+
+# Resources:
+set(hwlayer-compositor_resource_files
+    "main.qml"
+)
+
+qt6_add_resources(hwlayer-compositor "hwlayer-compositor"
+    PREFIX
+        "/"
+    FILES
+        ${hwlayer-compositor_resource_files}
+)
+
+install(TARGETS hwlayer-compositor
+    RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}"
+    BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}"
+    LIBRARY DESTINATION "${INSTALL_EXAMPLEDIR}"
+)

local/recipes/qt/qtwayland/source/tests/manual/hwlayer-compositor/hwlayer-compositor.pro

@@ -0,0 +1,14 @@
+QT += gui qml
+
+SOURCES += \
+    main.cpp
+
+OTHER_FILES = \
+    main.qml
+
+RESOURCES += hwlayer-compositor.qrc
+
+target.path = $$[QT_INSTALL_EXAMPLES]/wayland/hwlayer-compositor
+sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS hwlayer-compositor.pro
+sources.path = $$[QT_INSTALL_EXAMPLES]/wayland/hwlayer-compositor
+INSTALLS += target sources

local/recipes/qt/qtwayland/source/tests/manual/hwlayer-compositor/hwlayer-compositor.qrc

@@ -0,0 +1,5 @@
+<RCC>
+    <qresource prefix="/">
+        <file>main.qml</file>
+    </qresource>
+</RCC>

local/recipes/qt/qtwayland/source/tests/manual/hwlayer-compositor/main.cpp

@@ -0,0 +1,17 @@
+// Copyright (C) 2018 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
+
+#include <QtCore/QUrl>
+#include <QtCore/QDebug>
+
+#include <QtGui/QGuiApplication>
+#include <QQmlContext>
+
+#include <QtQml/QQmlApplicationEngine>
+
+int main(int argc, char *argv[])
+{
+    QGuiApplication app(argc, argv);
+    QQmlApplicationEngine appEngine(QUrl("qrc:///main.qml"));
+    return app.exec();
+}

local/recipes/qt/qtwayland/source/tests/manual/hwlayer-compositor/main.qml

@@ -0,0 +1,117 @@
+// Copyright (C) 2018 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
+
+import QtQuick
+import QtQuick.Window
+import QtQuick.Controls
+import QtWayland.Compositor
+import QtWayland.Compositor.XdgShell
+import QtWayland.Compositor.WlShell
+import QtWayland.Compositor.IviApplication
+
+WaylandCompositor {
+    WaylandOutput {
+        sizeFollowsWindow: true
+        window: Window {
+            color: "tomato"
+            id: win
+            width: 1024
+            height: 768
+            visible: true
+            Rectangle {
+                color: "lightgreen"
+                anchors.centerIn: parent
+                width: parent.width / 3
+                height: parent.width / 3
+                NumberAnimation on rotation {
+                    id: rotationAnimation
+                    running: false
+                    from: 0
+                    to: 90
+                    loops: Animation.Infinite
+                    duration: 1000
+                }
+            }
+            Repeater {
+                model: shellSurfaces
+                ShellSurfaceItem {
+                    id: waylandItem
+                    onSurfaceDestroyed: shellSurfaces.remove(index)
+                    shellSurface: shSurface
+                    WaylandHardwareLayer {
+                        stackingLevel: level
+                        Component.onCompleted: console.log("Added hardware layer with stacking level", stackingLevel);
+                    }
+                    Component.onCompleted: console.log("Added wayland quick item");
+                    Behavior on x {
+                        PropertyAnimation {
+                            easing.type: Easing.OutBounce
+                            duration: 1000
+                        }
+                    }
+                    Timer {
+                        interval: 2000; running: animatePosition; repeat: true
+                        onTriggered: waylandItem.x = waylandItem.x === 0 ? win.width - waylandItem.width : 0
+                    }
+                    Behavior on opacity {
+                        PropertyAnimation {
+                            duration: 1000
+                        }
+                    }
+                    Timer {
+                        interval: 2000; running: animateOpacity; repeat: true
+                        onTriggered: waylandItem.opacity = waylandItem.opacity === 1 ? 0 : 1
+                    }
+                }
+            }
+            Column {
+                anchors.bottom: parent.bottom
+                Repeater {
+                    model: shellSurfaces
+                    Row {
+                        Label {
+                            anchors.verticalCenter: parent.verticalCenter
+                            leftPadding: 15
+                            rightPadding: 15
+                            text: "Surface " + index
+                        }
+                        CheckBox {
+                            text: "Animate position"
+                            checked: animatePosition
+                            onClicked: animatePosition = !animatePosition
+                        }
+                        CheckBox {
+                            text: "Animate Opacity"
+                            checked: animateOpacity
+                            onClicked: animateOpacity = !animateOpacity
+                        }
+                        Label {
+                            text: "Stacking level"
+                        }
+                        SpinBox {
+                            value: level
+                            onValueModified: level = value;
+                        }
+                        Button {
+                            text: "Kill"
+                            onClicked: shSurface.surface.client.kill()
+                        }
+                    }
+                }
+                CheckBox {
+                    text: "Rotation"
+                    checked: rotationAnimation.running
+                    onClicked: rotationAnimation.running = !rotationAnimation.running
+                    padding: 30
+                }
+            }
+        }
+    }
+    ListModel { id: shellSurfaces }
+    function addShellSurface(shellSurface) {
+        shellSurfaces.append({shSurface: shellSurface, animatePosition: false, animateOpacity: false, level: 0});
+    }
+    XdgShell { onToplevelCreated: (toplevel, xdgSurface) => addShellSurface(xdgSurface) }
+    IviApplication { onIviSurfaceCreated: (iviSurface) => addShellSurface(iviSurface) }
+    WlShell { onWlShellSurfaceCreated: (shellSurface) => addShellSurface(shellSurface) }
+}