Silence UBSan misaligned-pointer-use

...as seen during CppunitTest_sd_import_tests2,

> pixman-sse2.c:522:16: runtime error: load of misaligned address 0x5170000a4f83 for type 'const uint32_t *' (aka 'const unsigned int *'), which requires 4 byte alignment
> 0x5170000a4f83: note: pointer points here
>  00  b8 ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff  ff ff ff ff ff ff c0 00  b8 ff ff ff ff ff ff
>               ^
>  #0 in combine1 at workdir/UnpackedTarball/pixman/pixman/pixman-sse2.c:522:5
>  #1 in sse2_combine_add_u at workdir/UnpackedTarball/pixman/pixman/pixman-sse2.c:1366:6
>  #2 in sse2_composite_add_8_8 at workdir/UnpackedTarball/pixman/pixman/pixman-sse2.c:4490:2
>  #3 in add_glyphs at workdir/UnpackedTarball/pixman/pixman/pixman-glyph.c:615:6
>  #4 in pixman_composite_glyphs at workdir/UnpackedTarball/pixman/pixman/pixman-glyph.c:673:5
>  #5 in composite_glyphs at workdir/UnpackedTarball/cairo/src/cairo-image-compositor.c:941:2
>  #6 in composite_glyphs at workdir/UnpackedTarball/cairo/src/cairo-traps-compositor.c:2295:12
>  #7 in clip_and_composite at workdir/UnpackedTarball/cairo/src/cairo-traps-compositor.c:1049:15
>  #8 in _cairo_traps_compositor_glyphs at workdir/UnpackedTarball/cairo/src/cairo-traps-compositor.c:2331:11
>  #9 in _cairo_compositor_glyphs at workdir/UnpackedTarball/cairo/src/cairo-compositor.c:292:11
>  #10 in _cairo_image_surface_glyphs at workdir/UnpackedTarball/cairo/src/cairo-image-surface.c:1030:12
>  #11 in _cairo_surface_show_text_glyphs at workdir/UnpackedTarball/cairo/src/cairo-surface.c:2920:15
>  #12 in _cairo_gstate_show_text_glyphs at workdir/UnpackedTarball/cairo/src/cairo-gstate.c:2077:15
>  #13 in _cairo_default_context_glyphs at workdir/UnpackedTarball/cairo/src/cairo-default-context.c:1334:12
>  #14 in cairo_show_glyphs at workdir/UnpackedTarball/cairo/src/cairo.c:3670:14
>  #15 in CairoTextRender::DrawTextLayout(GenericSalLayout const&, SalGraphics const&) at vcl/unx/generic/gdi/cairotextrender.cxx:476:9
>  #16 in SvpSalGraphics::DrawTextLayout(GenericSalLayout const&) at vcl/headless/svptext.cxx:72:23
>  #17 in GenericSalLayout::DrawText(SalGraphics&) const at vcl/source/gdi/CommonSalLayout.cxx:171:18
>  #18 in OutputDevice::ImplDrawTextDirect(SalLayout&, bool) at vcl/source/outdev/text.cxx:331:16
>  #19 in OutputDevice::ImplDrawText(SalLayout&) at vcl/source/outdev/text.cxx:482:9
>  #20 in OutputDevice::DrawTextArray(Point const&, rtl::OUString const&, KernArraySpan, std::span<unsigned char const, 18446744073709551615ul>, int, int, SalLayoutFlags, SalLayoutGlyphs const*) at vcl/source/outdev/text.cxx:951:9
>  #21 in drawinglayer::processor2d::VclProcessor2D::RenderTextSimpleOrDecoratedPortionPrimitive2D(drawinglayer::primitive2d::TextSimplePortionPrimitive2D const&) at drawinglayer/source/processor2d/vclprocessor2d.cxx:422:33
>  #22 in drawinglayer::processor2d::VclPixelProcessor2D::processTextSimplePortionPrimitive2D(drawinglayer::primitive2d::TextSimplePortionPrimitive2D const&) at drawinglayer/source/processor2d/vclpixelprocessor2d.cxx:404:9
>  #23 in drawinglayer::processor2d::VclPixelProcessor2D::processBasePrimitive2D(drawinglayer::primitive2d::BasePrimitive2D const&) at drawinglayer/source/processor2d/vclpixelprocessor2d.cxx:200:13
>  #24 in drawinglayer::processor2d::BaseProcessor2D::process(drawinglayer::primitive2d::Primitive2DContainer const&) at drawinglayer/source/processor2d/baseprocessor2d.cxx:68:21
>  #25 in drawinglayer::processor2d::BaseProcessor2D::visit(drawinglayer::primitive2d::Primitive2DContainer const&) at drawinglayer/source/processor2d/baseprocessor2d.cxx:56:13
>  #26 in drawinglayer::primitive2d::GroupPrimitive2D::getChildren(drawinglayer::primitive2d::Primitive2DDecompositionVisitor&) const at include/drawinglayer/primitive2d/groupprimitive2d.hxx:76:90
>  #27 in drawinglayer::primitive2d::GroupPrimitive2D::get2DDecomposition(drawinglayer::primitive2d::Primitive2DDecompositionVisitor&, drawinglayer::geometry::ViewInformation2D const&) const at drawinglayer/source/primitive2d/groupprimitive2d.cxx:53:13
>  #28 in drawinglayer::processor2d::BaseProcessor2D::process(drawinglayer::primitive2d::BasePrimitive2D const&) at drawinglayer/source/processor2d/baseprocessor2d.cxx:46:24
>  #29 in drawinglayer::processor2d::VclPixelProcessor2D::processBasePrimitive2D(drawinglayer::primitive2d::BasePrimitive2D const&) at drawinglayer/source/processor2d/vclpixelprocessor2d.cxx:378:13
>  #30 in drawinglayer::processor2d::BaseProcessor2D::process(drawinglayer::primitive2d::Primitive2DContainer const&) at drawinglayer/source/processor2d/baseprocessor2d.cxx:68:21
>  #31 in drawinglayer::processor2d::BaseProcessor2D::visit(drawinglayer::primitive2d::Primitive2DContainer const&) at drawinglayer/source/processor2d/baseprocessor2d.cxx:56:13
>  #32 in drawinglayer::primitive2d::GroupPrimitive2D::getChildren(drawinglayer::primitive2d::Primitive2DDecompositionVisitor&) const at include/drawinglayer/primitive2d/groupprimitive2d.hxx:76:90
>  #33 in drawinglayer::primitive2d::GroupPrimitive2D::get2DDecomposition(drawinglayer::primitive2d::Primitive2DDecompositionVisitor&, drawinglayer::geometry::ViewInformation2D const&) const at drawinglayer/source/primitive2d/groupprimitive2d.cxx:53:13
>  #34 in drawinglayer::processor2d::BaseProcessor2D::process(drawinglayer::primitive2d::BasePrimitive2D const&) at drawinglayer/source/processor2d/baseprocessor2d.cxx:46:24
>  #35 in drawinglayer::processor2d::VclPixelProcessor2D::processBasePrimitive2D(drawinglayer::primitive2d::BasePrimitive2D const&) at drawinglayer/source/processor2d/vclpixelprocessor2d.cxx:378:13
>  #36 in drawinglayer::processor2d::BaseProcessor2D::process(drawinglayer::primitive2d::Primitive2DContainer const&) at drawinglayer/source/processor2d/baseprocessor2d.cxx:68:21
>  #37 in drawinglayer::processor2d::BaseProcessor2D::visit(drawinglayer::primitive2d::Primitive2DContainer const&) at drawinglayer/source/processor2d/baseprocessor2d.cxx:56:13
>  #38 in drawinglayer::primitive2d::GroupPrimitive2D::getChildren(drawinglayer::primitive2d::Primitive2DDecompositionVisitor&) const at include/drawinglayer/primitive2d/groupprimitive2d.hxx:76:90
>  #39 in drawinglayer::primitive2d::GroupPrimitive2D::get2DDecomposition(drawinglayer::primitive2d::Primitive2DDecompositionVisitor&, drawinglayer::geometry::ViewInformation2D const&) const at drawinglayer/source/primitive2d/groupprimitive2d.cxx:53:13
>  #40 in drawinglayer::processor2d::BaseProcessor2D::process(drawinglayer::primitive2d::BasePrimitive2D const&) at drawinglayer/source/processor2d/baseprocessor2d.cxx:46:24
>  #41 in drawinglayer::processor2d::VclPixelProcessor2D::processBasePrimitive2D(drawinglayer::primitive2d::BasePrimitive2D const&) at drawinglayer/source/processor2d/vclpixelprocessor2d.cxx:378:13
>  #42 in drawinglayer::processor2d::BaseProcessor2D::process(drawinglayer::primitive2d::Primitive2DContainer const&) at drawinglayer/source/processor2d/baseprocessor2d.cxx:68:21
>  #43 in drawinglayer::processor2d::BaseProcessor2D::visit(drawinglayer::primitive2d::Primitive2DContainer const&) at drawinglayer/source/processor2d/baseprocessor2d.cxx:56:13
>  #44 in drawinglayer::primitive2d::BufferedDecompositionPrimitive2D::get2DDecomposition(drawinglayer::primitive2d::Primitive2DDecompositionVisitor&, drawinglayer::geometry::ViewInformation2D const&) const at drawinglayer/source/primitive2d/BufferedDecompositionPrimitive2D.cxx:41:14
>  #45 in drawinglayer::primitive2d::SdrTextPrimitive2D::get2DDecomposition(drawinglayer::primitive2d::Primitive2DDecompositionVisitor&, drawinglayer::geometry::ViewInformation2D const&) const at svx/source/sdr/primitive2d/sdrtextprimitive2d.cxx:235:47
>  #46 in drawinglayer::processor2d::BaseProcessor2D::process(drawinglayer::primitive2d::BasePrimitive2D const&) at drawinglayer/source/processor2d/baseprocessor2d.cxx:46:24
>  #47 in drawinglayer::processor2d::VclPixelProcessor2D::processBasePrimitive2D(drawinglayer::primitive2d::BasePrimitive2D const&) at drawinglayer/source/processor2d/vclpixelprocessor2d.cxx:378:13
>  #48 in drawinglayer::processor2d::BaseProcessor2D::process(drawinglayer::primitive2d::Primitive2DContainer const&) at drawinglayer/source/processor2d/baseprocessor2d.cxx:68:21
>  #49 in drawinglayer::processor2d::BaseProcessor2D::visit(drawinglayer::primitive2d::Primitive2DContainer const&) at drawinglayer/source/processor2d/baseprocessor2d.cxx:56:13
>  #50 in drawinglayer::primitive2d::BufferedDecompositionPrimitive2D::get2DDecomposition(drawinglayer::primitive2d::Primitive2DDecompositionVisitor&, drawinglayer::geometry::ViewInformation2D const&) const at drawinglayer/source/primitive2d/BufferedDecompositionPrimitive2D.cxx:41:14
>  #51 in drawinglayer::processor2d::BaseProcessor2D::process(drawinglayer::primitive2d::BasePrimitive2D const&) at drawinglayer/source/processor2d/baseprocessor2d.cxx:46:24
>  #52 in drawinglayer::processor2d::VclPixelProcessor2D::processBasePrimitive2D(drawinglayer::primitive2d::BasePrimitive2D const&) at drawinglayer/source/processor2d/vclpixelprocessor2d.cxx:378:13
>  #53 in drawinglayer::processor2d::BaseProcessor2D::process(drawinglayer::primitive2d::Primitive2DContainer const&) at drawinglayer/source/processor2d/baseprocessor2d.cxx:68:21
>  #54 in sdr::contact::ObjectContactOfPageView::DoProcessDisplay(sdr::contact::DisplayInfo&) at svx/source/sdr/contact/objectcontactofpageview.cxx:279:31
>  #55 in sdr::contact::ObjectContactOfPageView::ProcessDisplay(sdr::contact::DisplayInfo&) at svx/source/sdr/contact/objectcontactofpageview.cxx:117:21
>  #56 in SdrPageWindow::RedrawAll(sdr::contact::ViewObjectContactRedirector*) at svx/source/svdraw/sdrpagewindow.cxx:354:28
>  #57 in SdrPageView::CompleteRedraw(SdrPaintWindow&, vcl::Region const&, sdr::contact::ViewObjectContactRedirector*) at svx/source/svdraw/svdpagv.cxx:239:18
>  #58 in SdrPaintView::DoCompleteRedraw(SdrPaintWindow&, vcl::Region const&, sdr::contact::ViewObjectContactRedirector*) at svx/source/svdraw/svdpntv.cxx:610:21
>  #59 in SdrPaintView::CompleteRedraw(OutputDevice*, vcl::Region const&, sdr::contact::ViewObjectContactRedirector*) at svx/source/svdraw/svdpntv.cxx:523:5
>  #60 in sd::View::CompleteRedraw(OutputDevice*, vcl::Region const&, sdr::contact::ViewObjectContactRedirector*) at sd/source/ui/view/sdview.cxx:498:17
>  #61 in sd::DrawView::CompleteRedraw(OutputDevice*, vcl::Region const&, sdr::contact::ViewObjectContactRedirector*) at sd/source/ui/view/drawview.cxx:517:17
>  #62 in sd::DrawDocShell::Draw(OutputDevice*, JobSetup const&, unsigned short, bool) at sd/source/ui/docshell/docshel2.cxx:112:12
>  #63 in SfxObjectShell::DoDraw_Impl(OutputDevice*, Point const&, Fraction const&, Fraction const&, JobSetup const&, unsigned short, bool) at sfx2/source/doc/objembed.cxx:204:5
>  #64 in SfxObjectShell::DoDraw(OutputDevice*, Point const&, Size const&, JobSetup const&, unsigned short, bool) at sfx2/source/doc/objembed.cxx:151:9
>  #65 in SfxObjectShell::CreatePreview_Impl(bool, VirtualDevice*, GDIMetaFile*) const at sfx2/source/doc/objcont.cxx:197:40
>  #66 in SfxObjectShell::GetPreviewBitmap() const at sfx2/source/doc/objcont.cxx:109:9
>  #67 in SfxObjectShell::WriteThumbnail(bool, com::sun:⭐:uno::Reference<com::sun:⭐:io::XStream> const&) at sfx2/source/doc/objstor.cxx:3738:31
>  #68 in SfxObjectShell::GenerateAndStoreThumbnail(bool, com::sun:⭐:uno::Reference<com::sun:⭐:embed::XStorage> const&) at sfx2/source/doc/objstor.cxx:3696:33
>  #69 in SfxObjectShell::SaveTo_Impl(SfxMedium&, SfxItemSet const*) at sfx2/source/doc/objstor.cxx:1469:19
>  #70 in SfxObjectShell::PreDoSaveAs_Impl(rtl::OUString const&, rtl::OUString const&, SfxItemSet const&, com::sun:⭐:uno::Sequence<com::sun:⭐🫘:PropertyValue> const&) at sfx2/source/doc/objstor.cxx:2992:39
>  #71 in SfxObjectShell::CommonSaveAs_Impl(INetURLObject const&, rtl::OUString const&, SfxItemSet&, com::sun:⭐:uno::Sequence<com::sun:⭐🫘:PropertyValue> const&) at sfx2/source/doc/objstor.cxx:2782:9
>  #72 in SfxObjectShell::APISaveAs_Impl(std::basic_string_view<char16_t, std::char_traits<char16_t>>, SfxItemSet&, com::sun:⭐:uno::Sequence<com::sun:⭐🫘:PropertyValue> const&) at sfx2/source/doc/objserv.cxx:319:19
>  #73 in SfxBaseModel::impl_store(rtl::OUString const&, com::sun:⭐:uno::Sequence<com::sun:⭐🫘:PropertyValue> const&, bool) at sfx2/source/doc/sfxbasemodel.cxx:3191:42
>  #74 in SfxBaseModel::storeToURL(rtl::OUString const&, com::sun:⭐:uno::Sequence<com::sun:⭐🫘:PropertyValue> const&) at sfx2/source/doc/sfxbasemodel.cxx:1801:13
>  #75 in UnoApiTest::saveWithParams(com::sun:⭐:uno::Sequence<com::sun:⭐🫘:PropertyValue> const&) at test/source/unoapi_test.cxx:213:16
>  #76 in UnoApiTest::save(rtl::OUString const&, char const*) at test/source/unoapi_test.cxx:178:5
>  #77 in UnoApiTest::saveAndReload(rtl::OUString const&, char const*) at test/source/unoapi_test.cxx:218:5
>  #78 in testOverflowBehaviorClip::TestBody() at sd/qa/unit/import-tests2.cxx:1899:5

Change-Id: Iea3e107608137c4dec9103ee0b04e801284b5fa9
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/158018
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

external/cairo/pixman/pixman-ubsan.patch

@@ -53,6 +53,15 @@ diff -ru pixman-0.42.2.orig/pixman/pixman-fast-path.c pixman-0.42.2/pixman/pixma
 diff -ru pixman-0.42.2.orig/pixman/pixman-sse2.c pixman-0.42.2/pixman/pixman-sse2.c
 --- misc/pixman-0.42.2/pixman/pixman-sse2.c	2022-02-02 05:51:25.000000000 +0900
 +++ misc/build/pixman-0.42.2/pixman/pixman-sse2.c   2022-11-28 22:11:19.276969466 +0900
+@@ -516,7 +516,7 @@
+ }
+ 
+ static force_inline uint32_t
+-combine1 (const uint32_t *ps, const uint32_t *pm)
++combine1 (const void *ps, const uint32_t *pm)
+ {
+     uint32_t s;
+     memcpy(&s, ps, sizeof(uint32_t));
 @@ -3345,7 +3345,7 @@
  
  	b = filler & 0xff;