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/qtbase/source/tests/auto/wayland/seatv7/CMakeLists.txt

@@ -0,0 +1,13 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+#####################################################################
+## tst_seatv7 Test:
+#####################################################################
+
+qt_internal_add_test(tst_seatv7
+    SOURCES
+        tst_seatv7.cpp
+    LIBRARIES
+        SharedClientTest
+)

local/recipes/qt/qtbase/source/tests/auto/wayland/seatv7/tst_seatv7.cpp

@@ -0,0 +1,129 @@
+// Copyright (C) 2018 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
+
+#include "mockcompositor.h"
+#include <QtGui/QRasterWindow>
+#include <QtGui/QEventPoint>
+
+using namespace MockCompositor;
+
+class SeatCompositor : public DefaultCompositor {
+public:
+    explicit SeatCompositor()
+    {
+        exec([this] {
+            m_config.autoConfigure = true;
+
+            removeAll<Seat>();
+
+            uint capabilities = MockCompositor::Seat::capability_pointer | MockCompositor::Seat::capability_touch;
+            int version = 7;
+            add<Seat>(capabilities, version);
+        });
+    }
+};
+
+class tst_seatv7 : public QObject, private SeatCompositor
+{
+    Q_OBJECT
+private slots:
+    void cleanup() { QTRY_VERIFY2(isClean(), qPrintable(dirtyMessage())); }
+    void bindsToSeat();
+
+    // Pointer tests
+    void wheelDiscreteScroll_data();
+    void wheelDiscreteScroll();
+};
+
+void tst_seatv7::bindsToSeat()
+{
+    QCOMPOSITOR_COMPARE(get<Seat>()->resourceMap().size(), 1);
+    QCOMPOSITOR_COMPARE(get<Seat>()->resourceMap().first()->version(), 7);
+}
+
+class WheelWindow : QRasterWindow {
+public:
+    WheelWindow()
+    {
+        resize(64, 64);
+        show();
+    }
+    void wheelEvent(QWheelEvent *event) override
+    {
+        QRasterWindow::wheelEvent(event);
+//        qDebug() << event << "angleDelta" << event->angleDelta() << "pixelDelta" << event->pixelDelta();
+
+        if (event->phase() != Qt::ScrollUpdate && event->phase() != Qt::NoScrollPhase) {
+            // Shouldn't have deltas in the these phases
+            QCOMPARE(event->angleDelta(), QPoint(0, 0));
+            QCOMPARE(event->pixelDelta(), QPoint(0, 0));
+        }
+
+        // The axis vector of the event is already in surface space, so there is now way to tell
+        // whether it is inverted or not.
+        QCOMPARE(event->inverted(), false);
+
+        // We didn't press any buttons
+        QCOMPARE(event->buttons(), Qt::NoButton);
+
+        m_events.append(Event{event});
+    }
+    struct Event // Because I didn't find a convenient way to copy it entirely
+    {
+        explicit Event() = default;
+        explicit Event(const QWheelEvent *event)
+            : phase(event->phase())
+            , pixelDelta(event->pixelDelta())
+            , angleDelta(event->angleDelta())
+            , source(event->source())
+        {
+        }
+        Qt::ScrollPhase phase{};
+        QPoint pixelDelta;
+        QPoint angleDelta; // eights of a degree, positive is upwards, left
+        Qt::MouseEventSource source{};
+    };
+    QList<Event> m_events;
+};
+
+void tst_seatv7::wheelDiscreteScroll_data()
+{
+    QTest::addColumn<uint>("source");
+    QTest::newRow("wheel") << uint(Pointer::axis_source_wheel);
+    QTest::newRow("wheel tilt") << uint(Pointer::axis_source_wheel_tilt);
+}
+
+void tst_seatv7::wheelDiscreteScroll()
+{
+    WheelWindow window;
+    QCOMPOSITOR_TRY_VERIFY(xdgSurface() && xdgSurface()->m_committedConfigureSerial);
+
+    QFETCH(uint, source);
+
+    exec([&] {
+        auto *p = pointer();
+        auto *c = client();
+        p->sendEnter(xdgToplevel()->surface(), {32, 32});
+        p->sendFrame(c);
+        p->sendAxisSource(c, Pointer::axis_source(source));
+        p->sendAxisDiscrete(c, Pointer::axis_vertical_scroll, 1); // 1 click downwards
+        p->sendAxis(c, Pointer::axis_vertical_scroll, 1.0);
+        p->sendFrame(c);
+    });
+
+    QTRY_VERIFY(!window.m_events.empty());
+    {
+        auto e = window.m_events.takeFirst();
+        QCOMPARE(e.phase, Qt::NoScrollPhase);
+        QVERIFY(qAbs(e.angleDelta.x()) <= qAbs(e.angleDelta.y())); // Vertical scroll
+        // According to the docs the angle delta is in eights of a degree and most mice have
+        // 1 click = 15 degrees. The angle delta should therefore be:
+        // 15 degrees / (1/8 eights per degrees) = 120 eights of degrees.
+        QCOMPARE(e.angleDelta, QPoint(0, -120));
+        // Click scrolls are not continuous and should not have a pixel delta
+        QCOMPARE(e.pixelDelta, QPoint(0, 0));
+    }
+}
+
+QCOMPOSITOR_TEST_MAIN(tst_seatv7)
+#include "tst_seatv7.moc"