[Octave-bug-tracker] [bug #51530] fsanitize=undefined errors

[Dmitri A. Sergatskov]

URL:
  <http://savannah.gnu.org/bugs/?51530>

                 Summary: fsanitize=undefined errors
                 Project: GNU Octave
            Submitted by: dasergatskov
            Submitted on: Fri 21 Jul 2017 07:33:45 PM UTC
                Category: Interpreter
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Segfault, Bus Error, etc.
                  Status: None
             Assigned to: None
         Originator Name: Dmitri A. Sergatskov
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: GNU/Linux

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Details:

HG ID for this build is "cda0614beaec"

configure --disable-docs --without-qt --without-fltk CFLAGS="-O0
-fsanitize=undefined" CXXFLAGS="-O0 -fsanitize=undefined"
-verbatim
running "make check" results in two runtime errors:

 gcc_ubsan/liboctave/util/oct-inttypes.cc-tst
................../liboctave/util/oct-inttypes.cc:431:40: runtime error:
negation of -9223372036854775808 cannot be represented in type 'long int';
cast to an unsigned type to negate this value to itself
 PASS     28/28  


Fixed test scripts:

  bc-overloads.tst ............................................ PASS   
451/451 
  conv.tst .................................................... PASS   
405/405 
  sparse.tst
..................................................../libinterp/corefcn/ls-mat5.cc:492:11:
runtime error: load of misaligned address 0x7f86637b5257 for type 'const
int16_t', which requires 2 byte alignment
0x7f86637b5257: note: pointer points here
 68 2e 68 00 00  01 00 00 00 00 00 00 00  6c 6f 61 64 3a 20 65 72  72 6f 72 20
70 72 6f 62  69 6e 67
             ^ 
 PASS   1204/1204
 

Dmitri.
-- 





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