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/examples/sql/masterdetail/dialog.cpp

@@ -0,0 +1,265 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include "dialog.h"
+
+#include <QDialogButtonBox>
+#include <QDate>
+#include <QDomDocument>
+#include <QGroupBox>
+#include <QLabel>
+#include <QLineEdit>
+#include <QMessageBox>
+#include <QPushButton>
+#include <QSpinBox>
+#include <QSqlField>
+#include <QSqlRelationalTableModel>
+#include <QSqlRecord>
+#include <QVBoxLayout>
+
+int Dialog::s_artistId = 0;
+int Dialog::s_albumId = 0;
+Dialog::Dialog(QSqlRelationalTableModel *albums, const QDomDocument &details,
+               QFile *output, QWidget *parent)
+     : QDialog(parent)
+{
+    model = albums;
+    albumDetails = details;
+    outputFile = output;
+
+    QGroupBox *inputWidgetBox = createInputWidgets();
+    QDialogButtonBox *buttonBox = createButtons();
+
+    QVBoxLayout *layout = new QVBoxLayout;
+    layout->addWidget(inputWidgetBox);
+    layout->addWidget(buttonBox);
+    setLayout(layout);
+
+    setWindowTitle(tr("Add Album"));
+}
+
+void Dialog::setInitialAlbumAndArtistId(int albumId, int artistId)
+{
+    s_albumId = albumId;
+    s_artistId = artistId;
+}
+
+void Dialog::submit()
+{
+    QString artist = artistEditor->text();
+    QString title = titleEditor->text();
+
+    if (artist.isEmpty() || title.isEmpty()) {
+        QString message(tr("Please provide both the name of the artist "
+                           "and the title of the album."));
+        QMessageBox::information(this, tr("Add Album"), message);
+    } else {
+        int artistId = findArtistId(artist);
+        int albumId = addNewAlbum(title, artistId);
+
+        QStringList tracks;
+        tracks = tracksEditor->text().split(QLatin1Char(','), Qt::SkipEmptyParts);
+        addTracks(albumId, tracks);
+
+        increaseAlbumCount(indexOfArtist(artist));
+        accept();
+    }
+}
+
+int Dialog::findArtistId(const QString &artist)
+{
+    QSqlTableModel *artistModel = model->relationModel(2);
+    int row = 0;
+
+    while (row < artistModel->rowCount()) {
+        QSqlRecord record = artistModel->record(row);
+        if (record.value("artist") == artist)
+            return record.value("id").toInt();
+        else
+            row++;
+    }
+    return addNewArtist(artist);
+}
+
+
+int Dialog::addNewArtist(const QString &name)
+{
+    QSqlTableModel *artistModel = model->relationModel(2);
+    QSqlRecord record;
+
+    int id = generateArtistId();
+
+    QSqlField f1("id", QMetaType(QMetaType::Int));
+    QSqlField f2("artist", QMetaType(QMetaType::QString));
+    QSqlField f3("albumcount", QMetaType(QMetaType::Int));
+
+    f1.setValue(QVariant(id));
+    f2.setValue(QVariant(name));
+    f3.setValue(QVariant(0));
+    record.append(f1);
+    record.append(f2);
+    record.append(f3);
+
+    artistModel->insertRecord(-1, record);
+    return id;
+}
+
+int Dialog::addNewAlbum(const QString &title, int artistId)
+{
+    int id = generateAlbumId();
+    QSqlRecord record;
+
+    QSqlField f1("albumid", QMetaType(QMetaType::Int));
+    QSqlField f2("title", QMetaType(QMetaType::QString));
+    QSqlField f3("artistid", QMetaType(QMetaType::Int));
+    QSqlField f4("year", QMetaType(QMetaType::Int));
+
+    f1.setValue(QVariant(id));
+    f2.setValue(QVariant(title));
+    f3.setValue(QVariant(artistId));
+    f4.setValue(QVariant(yearEditor->value()));
+    record.append(f1);
+    record.append(f2);
+    record.append(f3);
+    record.append(f4);
+
+    model->insertRecord(-1, record);
+    return id;
+}
+
+void Dialog::addTracks(int albumId, const QStringList &tracks)
+{
+    QDomElement albumNode = albumDetails.createElement("album");
+    albumNode.setAttribute("id", albumId);
+
+    for (int i = 0; i < tracks.count(); ++i) {
+        QString trackNumber = QString::number(i);
+        if (i < 10)
+            trackNumber.prepend('0');
+
+        QDomText textNode = albumDetails.createTextNode(tracks.at(i));
+
+        QDomElement trackNode = albumDetails.createElement("track");
+        trackNode.setAttribute("number", trackNumber);
+        trackNode.appendChild(textNode);
+
+        albumNode.appendChild(trackNode);
+    }
+
+    QDomNodeList archive = albumDetails.elementsByTagName("archive");
+    archive.item(0).appendChild(albumNode);
+
+/*
+    The following code is commented out since the example uses an in
+    memory database, i.e., altering the XML file will bring the data
+    out of sync.
+
+    if (!outputFile->open(QIODevice::WriteOnly)) {
+        return;
+    } else {
+        QTextStream stream(outputFile);
+        archive.item(0).save(stream, 4);
+        outputFile->close();
+    }
+*/
+}
+
+void Dialog::increaseAlbumCount(const QModelIndex &artistIndex)
+{
+    QSqlTableModel *artistModel = model->relationModel(2);
+
+    QModelIndex albumCountIndex;
+    albumCountIndex = artistIndex.sibling(artistIndex.row(), 2);
+
+    int albumCount = albumCountIndex.data().toInt();
+    artistModel->setData(albumCountIndex, QVariant(albumCount + 1));
+    artistModel->submitAll();
+}
+
+
+void Dialog::revert()
+{
+    artistEditor->clear();
+    titleEditor->clear();
+    yearEditor->setValue(QDate::currentDate().year());
+    tracksEditor->clear();
+}
+
+QGroupBox *Dialog::createInputWidgets()
+{
+    QGroupBox *box = new QGroupBox(tr("Add Album"));
+
+    QLabel *artistLabel = new QLabel(tr("Artist:"));
+    QLabel *titleLabel = new QLabel(tr("Title:"));
+    QLabel *yearLabel = new QLabel(tr("Year:"));
+    QLabel *tracksLabel = new QLabel(tr("Tracks (separated by comma):"));
+
+    artistEditor = new QLineEdit;
+    titleEditor = new QLineEdit;
+
+    yearEditor = new QSpinBox;
+    yearEditor->setMinimum(1900);
+    yearEditor->setMaximum(QDate::currentDate().year());
+    yearEditor->setValue(yearEditor->maximum());
+    yearEditor->setReadOnly(false);
+
+    tracksEditor = new QLineEdit;
+
+    QGridLayout *layout = new QGridLayout;
+    layout->addWidget(artistLabel, 0, 0);
+    layout->addWidget(artistEditor, 0, 1);
+    layout->addWidget(titleLabel, 1, 0);
+    layout->addWidget(titleEditor, 1, 1);
+    layout->addWidget(yearLabel, 2, 0);
+    layout->addWidget(yearEditor, 2, 1);
+    layout->addWidget(tracksLabel, 3, 0, 1, 2);
+    layout->addWidget(tracksEditor, 4, 0, 1, 2);
+    box->setLayout(layout);
+
+    return box;
+}
+
+QDialogButtonBox *Dialog::createButtons()
+{
+    QPushButton *closeButton = new QPushButton(tr("&Close"));
+    QPushButton *revertButton = new QPushButton(tr("&Revert"));
+    QPushButton *submitButton = new QPushButton(tr("&Submit"));
+
+    closeButton->setDefault(true);
+
+    connect(closeButton, &QPushButton::clicked, this, &Dialog::close);
+    connect(revertButton, &QPushButton::clicked,  this, &Dialog::revert);
+    connect(submitButton, &QPushButton::clicked, this, &Dialog::submit);
+
+    QDialogButtonBox *buttonBox = new QDialogButtonBox;
+    buttonBox->addButton(submitButton, QDialogButtonBox::ResetRole);
+    buttonBox->addButton(revertButton, QDialogButtonBox::ResetRole);
+    buttonBox->addButton(closeButton, QDialogButtonBox::RejectRole);
+
+    return buttonBox;
+}
+
+QModelIndex Dialog::indexOfArtist(const QString &artist) const
+{
+    QSqlTableModel *artistModel = model->relationModel(2);
+
+    for (int i = 0; i < artistModel->rowCount(); ++i) {
+        QSqlRecord record =  artistModel->record(i);
+        if (record.value("artist") == artist)
+            return artistModel->index(i, 1);
+    }
+
+    return QModelIndex();
+}
+
+int Dialog::generateArtistId()
+{
+    s_artistId += 1;
+    return s_artistId;
+}
+
+int Dialog::generateAlbumId()
+{
+    s_albumId += 1;
+    return s_albumId;
+}