Re: testListLabelPDFExport segfaulting

[Dan Horák <dan@xxxxxxxx>]

On Wed, 13 Sep 2023 22:02:49 +0200
Noel Grandin <noelgrandin@xxxxxxxxx> wrote:

> A debug build (--enable-debug) would possibly give a more useful backtrace.

bisecting shows https://git.libreoffice.org/core/+/ea0f9776ed8e7e9809853d292923b86756274564
is the first bad commit

the better backtrace is here

...
[New Thread 0x7fffcb38e7a0 (LWP 2839768)]
[Thread 0x7fffcb38e7a0 (LWP 2839768) exited]
warn:legacy.osl:2838662:2838662:oox/source/helper/storagebase.cxx:67: StorageBase::StorageBase - missing base input stream
Test::testDateFormFieldCharacterFormatting finished in: 5248ms
[_RUN_____] testListLabelPDFExport::TestBody
private:factory/swriter:

Thread 1 "cppunittester" received signal SIGSEGV, Segmentation fault.
0x00007fffd7c16188 in testListLabelPDFExport::TestBody (this=0x10e6d640) at /home/sharkcz/projects/libreoffice/sw/qa/extras/globalfilter/globalfilter.cxx:1290
1290	    CPPUNIT_ASSERT_EQUAL(1, pPdfDocument->getPageCount());
(gdb) where
#0  0x00007fffd7c16188 in testListLabelPDFExport::TestBody() (this=0x10e6d640) at /home/sharkcz/projects/libreoffice/sw/qa/extras/globalfilter/globalfilter.cxx:1290
#1  0x00007fffd7c9b4a8 in std::__invoke_impl<void, void (testListLabelPDFExport::*&)(), testListLabelPDFExport*&>(std::__invoke_memfun_deref, void (testListLabelPDFExport::*&)(), testListLabelPDFExport*&) (__f=@0x10e6dba0: (void (testListLabelPDFExport::*)(testListLabelPDFExport * const)) 0x7fffd7c155d8 <testListLabelPDFExport::TestBody()>, __t=@0x10e6dbb0: 0x10e6d640)
    at /usr/include/c++/13/bits/invoke.h:74
...

but I think I see the problem, pPdfDocument is NULL, which is returned
by parsePDFExport(), because we don't build with pdfium, I suppose.
I can prepare a patch to run the test section only when non-NULL.


		Dan