Optimize plugin loading on ELF platforms

This is equal to 3c2a43f91e0225bde8d6e6d6076dfe2cddbc2f8e
except the alignment checks have been relaxed.

Reviewed-by: janarve

11 files changed, 71 insertions, 0 deletions

diff --git a/tests/auto/qpluginloader/elftest/.gitattributes b/tests/auto/qpluginloader/elftest/.gitattributes
new file mode 100644
index 0000000..891192c
--- /dev/null
+++ b/tests/auto/qpluginloader/elftest/.gitattributes
@@ -0,0 +1,10 @@
+corrupt1.elf64.so   set  -crlf -diff
+corrupt2.elf64.so  set  -crlf -diff
+corrupt3.elf64.so  set  -crlf -diff
+debugobj.so  set  -crlf -diff
+garbage1.so  set  -crlf -diff
+garbage2.so  set  -crlf -diff
+garbage3.so  set  -crlf -diff
+garbage4.so  set  -crlf -diff
+garbage5.so set  -crlf -diff
+
diff --git a/tests/auto/qpluginloader/elftest/corrupt1.elf64.so b/tests/auto/qpluginloader/elftest/corrupt1.elf64.so
new file mode 100755
index 0000000..12ce736
--- /dev/null
+++ b/tests/auto/qpluginloader/elftest/corrupt1.elf64.so
diff --git a/tests/auto/qpluginloader/elftest/corrupt2.elf64.so b/tests/auto/qpluginloader/elftest/corrupt2.elf64.so
new file mode 100755
index 0000000..11fdc2c
--- /dev/null
+++ b/tests/auto/qpluginloader/elftest/corrupt2.elf64.so
diff --git a/tests/auto/qpluginloader/elftest/corrupt3.elf64.so b/tests/auto/qpluginloader/elftest/corrupt3.elf64.so
new file mode 100755
index 0000000..94a2bc3
--- /dev/null
+++ b/tests/auto/qpluginloader/elftest/corrupt3.elf64.so
diff --git a/tests/auto/qpluginloader/elftest/debugobj.so b/tests/auto/qpluginloader/elftest/debugobj.so
new file mode 100644
index 0000000..f0ee056
--- /dev/null
+++ b/tests/auto/qpluginloader/elftest/debugobj.so
diff --git a/tests/auto/qpluginloader/elftest/garbage1.so b/tests/auto/qpluginloader/elftest/garbage1.so
new file mode 100644
index 0000000..0c74530
--- /dev/null
+++ b/tests/auto/qpluginloader/elftest/garbage1.so
@@ -0,0 +1,4 @@
+p��������cdL+����&��&��e���=���
+�o�ÒʎI��ٝ�mg�]!�Z
+L'�)t�
+�N��(e��P)Y8�G �6�-y�������"��Z���k�4�?�^�n����5$���Y=��#y
\ No newline at end of file
diff --git a/tests/auto/qpluginloader/elftest/garbage2.so b/tests/auto/qpluginloader/elftest/garbage2.so
new file mode 100644
index 0000000..c06338e
--- /dev/null
+++ b/tests/auto/qpluginloader/elftest/garbage2.so
@@ -0,0 +1 @@
+��v.�Y���tK�W3
\ No newline at end of file
diff --git a/tests/auto/qpluginloader/elftest/garbage3.so b/tests/auto/qpluginloader/elftest/garbage3.so
new file mode 100644
index 0000000..a24c523
--- /dev/null
+++ b/tests/auto/qpluginloader/elftest/garbage3.so
@@ -0,0 +1 @@
+���Ȃ�T-�����ڥ	���쾜�i�8�_�x����I��׮�x�=��4@��[����B�KS$�
\ No newline at end of file
diff --git a/tests/auto/qpluginloader/elftest/garbage4.so b/tests/auto/qpluginloader/elftest/garbage4.so
new file mode 100644
index 0000000..4f45cf5
--- /dev/null
+++ b/tests/auto/qpluginloader/elftest/garbage4.so
@@ -0,0 +1 @@
+�!�\~�U�u��:9�����T�+91�Q�E��ǚx�ng5��zh�����^t�����'��mm*ˈdXH;vw+�G�����
�9L�0!
\ No newline at end of file
diff --git a/tests/auto/qpluginloader/elftest/garbage5.so b/tests/auto/qpluginloader/elftest/garbage5.so
new file mode 100644
index 0000000..f8c0a1d
--- /dev/null
+++ b/tests/auto/qpluginloader/elftest/garbage5.so
@@ -0,0 +1,2 @@
+����Q�
+�-�9�
\ No newline at end of file
diff --git a/tests/auto/qpluginloader/tst_qpluginloader.cpp b/tests/auto/qpluginloader/tst_qpluginloader.cpp
index 1e382b8..46fce5e 100644
--- a/tests/auto/qpluginloader/tst_qpluginloader.cpp
+++ b/tests/auto/qpluginloader/tst_qpluginloader.cpp
@@ -123,6 +123,9 @@ private slots:
     void loadHints();
     void deleteinstanceOnUnload();
     void checkingStubsFromDifferentDrives();
+    void loadDebugObj();
+    void loadCorruptElf();
+    void loadGarbage();
 };
 
 tst_QPluginLoader::tst_QPluginLoader()
@@ -350,5 +353,54 @@ void tst_QPluginLoader::checkingStubsFromDifferentDrives()
 #endif//Q_OS_SYMBIAN
 }
 
+void tst_QPluginLoader::loadDebugObj()
+{
+#if defined (__ELF__)
+    QVERIFY(QFile::exists(SRCDIR "elftest/debugobj.so"));
+    QPluginLoader lib1(SRCDIR "elftest/debugobj.so");
+    QCOMPARE(lib1.load(), false);
+#endif
+}
+
+void tst_QPluginLoader::loadCorruptElf()
+{
+#if defined (__ELF__)
+if (sizeof(void*) == 8) {
+    QVERIFY(QFile::exists(SRCDIR "elftest/corrupt1.elf64.so"));
+
+    QPluginLoader lib1(SRCDIR "elftest/corrupt1.elf64.so");
+    QCOMPARE(lib1.load(), false);
+    QVERIFY(lib1.errorString().contains("not an ELF object"));
+
+    QPluginLoader lib2(SRCDIR "elftest/corrupt2.elf64.so");
+    QCOMPARE(lib2.load(), false);
+    QVERIFY(lib2.errorString().contains("invalid"));
+
+    QPluginLoader lib3(SRCDIR "elftest/corrupt3.elf64.so");
+    QCOMPARE(lib3.load(), false);
+    QVERIFY(lib3.errorString().contains("invalid"));
+} else if (sizeof(void*) == 4) {
+    QPluginLoader libW(SRCDIR "elftest/corrupt3.elf64.so");
+    QCOMPARE(libW.load(), false);
+    QVERIFY(libW.errorString().contains("architecture"));
+} else {
+    QFAIL("Please port QElfParser to this platform or blacklist this test.");
+}
+#endif
+}
+
+void tst_QPluginLoader::loadGarbage()
+{
+#if defined (Q_OS_UNIX) && !defined(Q_OS_SYMBIAN)
+    for (int i=0; i<5; i++) {
+        QPluginLoader lib(QString(SRCDIR "elftest/garbage%1.so").arg(i));
+        QCOMPARE(lib.load(), false);
+#ifdef SHOW_ERRORS
+        qDebug() << lib.errorString();
+#endif
+    }
+#endif
+}
+
 QTEST_APPLESS_MAIN(tst_QPluginLoader)
 #include "tst_qpluginloader.moc"