Valgrind
Valgrind is an instrumentation framework for dynamic analysis tools. It can be used to detect memory management and threading bugs and profile programs. It runs on Linux x86 and AMD64, PPC32 and PPC64 are fairly complete.
Contents
disabling the custom allocator
If you use ooo-build; export OOO_FORCE_SYSALLOC=1 before running, (this is built into linkoo's ooenv script).
If you use a Vanilla build, and your shell is setup for building ooo, use the following wrapper script around valgrind:
#!/bin/sh # instrument soffice with a malloc-based memory allocator. # Requires libsalalloc_malloc.so to be in the LD_LIBRARY_PATH. # Forwards all command line arguments to valgrind. export LD_PRELOAD=libsalalloc_malloc.so valgrind $@
which preloads a small interceptor lib, which redirects all allocator calls to malloc.
disabling glib's custom allocator
If you want to also track down problems with glib allocated objects, e.g. resource leaks in gconfbe then you need to disable glib's custom allocation as well, e.g.
G_SLICE=always-malloc valgrind ...
Errors Found
Definite Errors
Open as of DEV300_m99
:
- Issue 114718 “forms/qa/unoapi: crash in remote async release call”
- Issue 116785 “framework::[Module]ImageManager kept alive by ring ref”
- Issue 116786 “framework::ToolBarLayoutManger::m_p{AddonOptions,GlobalSettings} leak”
- Issue 116850 “SvLBox::OnCurrentEntryChanged: Conditional jump or move depends on uninitialised value(s)”
- Issue 116885 “utl::TextSearch::CachedTextSearch::~CachedTextSearch called too late”
- Issue 116891 “framework::AddonMenuManager::BuildMenu leaks MenuConfiguration::Attributes”
- Issue 116910 “desktop::Acceptor leaks Thread_Impl”
- Issue 116915 “osl_getSystemPathFromFileURL leaks rtl_uStrings”
- Issue 116981 “rtl/source/bootstrap.cxx does not clean up memory”
Definite False Positives
Open as of DEV300_m99
:
- Issue 116872 “drawinglayer: BPixelRasterToBitmapEx causes false valgrind positive in rtl_crc32”
- On
unxlngx6
, executingDEV300_m100
sfx2/qa/complex
, a 14 bytecom.sun.star.util.DateTime
struct (consisting of sevenunsigned short
members) is filled with two 64 bit writes.
Invalid write of size 8 at 0x1558BBAC: x86_64::fill_struct(_typelib_TypeDescriptionReference*, unsigned long const*, double const*, void*) (in /opt/openoffice.org/ure/lib/libgcc3_uno.so) by 0x15591965: callVirtualMethod(void*, unsigned int, void*, _typelib_TypeDescriptionReference*, bool, unsigned long*, unsigned int, unsigned long*, unsigned int, double*, unsigned int) (in /opt/openoffice.org/ure/lib/libgcc3_uno.so) by 0x1559240D: cpp_call(bridges::cpp_uno::shared::UnoInterfaceProxy*, bridges::cpp_uno::shared::VtableSlot, _typelib_TypeDescriptionReference*, int, _typelib_MethodParameter*, void*, void**, _uno_Any**) (in /opt/openoffice.org/ure/lib/libgcc3_uno.so) by 0x15592B8A: bridges::cpp_uno::shared::unoInterfaceProxyDispatch(_uno_Interface*, _typelib_TypeDescription const*, void*, void**, _uno_Any**) (in /opt/openoffice.org/ure/lib/libgcc3_uno.so) by 0x1A15C688: binaryurp::IncomingRequest::execute_throw(binaryurp::BinaryAny*, std::vector<binaryurp::BinaryAny, std::allocator<binaryurp::BinaryAny> >*) const (in /opt/openoffice.org/ure/lib/binaryurp.uno.so) by 0x1A15CC45: binaryurp::IncomingRequest::execute() const (in /opt/openoffice.org/ure/lib/binaryurp.uno.so) by 0x1A16B09A: request (in /opt/openoffice.org/ure/lib/binaryurp.uno.so) by 0x70057CA: cppu_threadpool::JobQueue::enter(long, unsigned char) (in /opt/openoffice.org/ure/lib/libuno_cppu.so.3) by 0x70062C2: cppu_threadpool::ORequestThread::run() (in /opt/openoffice.org/ure/lib/libuno_cppu.so.3) by 0x70065F2: cppu_requestThreadWorker (in /opt/openoffice.org/ure/lib/libuno_cppu.so.3) by 0x4E5F72E: osl_thread_start_Impl (in /opt/openoffice.org/ure/lib/libuno_sal.so.3) by 0x67679C9: start_thread (pthread_create.c:300) Address 0xeb32480 is 16 bytes inside a block of size 22 alloc'd at 0x4C274A8: malloc (vg_replace_malloc.c:236) by 0x4E9A7CC: rtl_allocateMemory (in /opt/openoffice.org/ure/lib/libuno_sal.so.3) by 0x4013EE: allocate(unsigned long, (anonymous namespace)::AllocatorTraits const&) (in /opt/openoffice.org3/program/soffice.bin) by 0x4014C5: operator new(unsigned long) (in /opt/openoffice.org3/program/soffice.bin) by 0x1A15E77E: __gnu_cxx::new_allocator<char>::allocate(unsigned long, void const*) (in /opt/openoffice.org/ure/lib/binaryurp.uno.so) by 0x1A15E7A6: std::_Vector_base<char, std::allocator<char> >::_M_allocate(unsigned long) (in /opt/openoffice.org/ure/lib/binaryurp.uno.so) by 0x1A15E7D8: std::_Vector_base<char, std::allocator<char> >::_Vector_base(unsigned long, std::allocator<char> const&) (in /opt/openoffice.org/ure/lib/binaryurp.uno.so) by 0x1A15F686: std::vector<char, std::allocator<char> >::vector(unsigned long, char const&, std::allocator<char> const&) (in /opt/openoffice.org/ure/lib/binaryurp.uno.so) by 0x1A15C57A: binaryurp::IncomingRequest::execute_throw(binaryurp::BinaryAny*, std::vector<binaryurp::BinaryAny, std::allocator<binaryurp::BinaryAny> >*) const (in /opt/openoffice.org/ure/lib/binaryurp.uno.so) by 0x1A15CC45: binaryurp::IncomingRequest::execute() const (in /opt/openoffice.org/ure/lib/binaryurp.uno.so) by 0x1A16B09A: request (in /opt/openoffice.org/ure/lib/binaryurp.uno.so) by 0x70057CA: cppu_threadpool::JobQueue::enter(long, unsigned char) (in /opt/openoffice.org/ure/lib/libuno_cppu.so.3)
Potentially False Positives
Conditional jump or move depends on uninitialised value(s) at 0x9440A18: XcursorImageHash (in /usr/lib/libXcursor.so.1.0.2) by 0x9440ED7: XcursorNoticePutBitmap (in /usr/lib/libXcursor.so.1.0.2) by 0x42F5EF8: _XNoticePutBitmap (in /usr/lib/libX11.so.6.3.0) by 0x430D3A7: XPutImage (in /usr/lib/libX11.so.6.3.0) by 0x938107E: ImplSalDDB::ImplSalDDB(_XImage*, unsigned long, int, SalTwoRect const&) (in /cws/sb138_m98/DEV300/unxlngi6/installation/opt/openoffice.org/basis3.4/program/libvclplug_genli.so) by 0x9382E77: X11SalBitmap::ImplGetDDB(unsigned long, int, long, SalTwoRect const&) const (in /cws/sb138_m98/DEV300/unxlngi6/installation/opt/openoffice.org/basis3.4/program/libvclplug_genli.so) by 0x9382F52: X11SalBitmap::ImplDraw(unsigned long, int, long, SalTwoRect const&, _XGC* const&) const (in /cws/sb138_m98/DEV300/unxlngi6/installation/opt/openoffice.org/basis3.4/program/libvclplug_genli.so) by 0x937DC2A: X11SalGraphics::drawMaskedBitmap(SalTwoRect const*, SalBitmap const&, SalBitmap const&) (in /cws/sb138_m98/DEV300/unxlngi6/installation/opt/openoffice.org/basis3.4/program/libvclplug_genli.so) by 0x937DF70: X11SalGraphics::drawBitmap(SalTwoRect const*, SalBitmap const&, SalBitmap const&) (in /cws/sb138_m98/DEV300/unxlngi6/installation/opt/openoffice.org/basis3.4/program/libvclplug_genli.so) by 0x5BAE9FB: SalGraphics::DrawBitmap(SalTwoRect const*, SalBitmap const&, SalBitmap const&, OutputDevice const*) (in /cws/sb138_m98/DEV300/unxlngi6/installation/opt/openoffice.org/basis3.4/program/libvclli.so) by 0x5B92D9C: OutputDevice::ImplDrawBitmapEx(Point const&, Size const&, Point const&, Size const&, BitmapEx const&, unsigned long) (in /cws/sb138_m98/DEV300/unxlngi6/installation/opt/openoffice.org/basis3.4/program/libvclli.so) by 0x5B9320D: OutputDevice::DrawBitmapEx(Point const&, Size const&, BitmapEx const&) (in /cws/sb138_m98/DEV300/unxlngi6/installation/opt/openoffice.org/basis3.4/program/libvclli.so)
might be a false positive, [1] specifies a suppression block for the head of that stack,
{ X oddness 3 Memcheck:Cond fun:XcursorImageHash fun:XcursorNoticePutBitmap fun:_XNoticePutBitmap fun:XPutImage }
more information
There's also some Writer document about Valgrind: http://tools.openoffice.org/debugging/usingvalgrind.sxw
TODO: move (!) its content here, not just copy but also remove there, so we don't end up with a fork.
TODO: Run recent version
Someone should run the latest version o OO.o, as Valgrind 3.3.0 re-introduces Hellgrind which helps e.g. to hunt down deadlocks. See [2] for more.
Callgrind Profiling How-To
There's a Callgrind How-To.