[Octave-bug-tracker] [bug #52025] Memory issue with mkoctfile and helloworld.cc

[Rik]

URL:
  <http://savannah.gnu.org/bugs/?52025>

                 Summary: Memory issue with mkoctfile and helloworld.cc
                 Project: GNU Octave
            Submitted by: rik5
            Submitted on: Thu 14 Sep 2017 01:19:51 PM PDT
                Category: Interpreter
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Segfault, Bus Error, etc.
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Any

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Details:

Compiling helloworld.cc from within Octave with mkoctfile and then running the
resulting .oct file produces a segfault.  It is only a segfault when there are
outputs requested from helloworld.cc.


octave:4> setenv ('CXXFLAGS', '-O0 -ggdb3 -fsanitize=address -pipe')
octave:5> mkoctfile -v helloworld.cc
g++ -std=gnu++11 -c  -fPIC -I/home/rik/local/include/octave-4.3.0+/octave/..
-I/home/rik/local/include/octave-4.3.0+/octave -I/home/rik/local/include 
-pthread -fopenmp -O0 -ggdb3 -fsanitize=address -pipe    helloworld.cc -o
helloworld.o
g++ -std=gnu++11 -I/home/rik/local/include/octave-4.3.0+/octave/..
-I/home/rik/local/include/octave-4.3.0+/octave -I/home/rik/local/include 
-pthread -fopenmp -O0 -ggdb3 -fsanitize=address -pipe -shared -Wl,-Bsymbolic 
-o helloworld.oct  helloworld.o   -L/home/rik/local/lib/octave/4.3.0+
-L/home/rik/local/lib -loctinterp -loctave  
octave:6> helloworld (1,2)
Hello World has 2 input arguments and 0 output arguments.
octave:7> [a,b] = helloworld (1,2)


The resulting backtrace is


ASAN:SIGSEGV
=================================================================
==6080==ERROR: AddressSanitizer: SEGV on unknown address 0x7fe7cdeab9e8 (pc
0x7fe7b63c58a6 bp 0x7ffd8cdd0f60 sp 0x7ffd8cdd0f50 T0)
    #0 0x7fe7b63c58a5 in octave::refcount<long>::operator++(int)
/home/rik/local/include/octave-4.3.0+/octave/../octave/oct-refcount.h:91
    #1 0x7fe7b63c4bc4 in octave_value::operator=(octave_value const&)
/home/rik/local/include/octave-4.3.0+/octave/../octave/ov.h:362
    #2 0x7fe7b63c3d4e in Fhelloworld(octave_value_list const&, int)
/home/rik/wip/Projects_Mine/octave-dbg/examples/code/helloworld.cc:13
    #3 0x7fe7cd4053fe in octave_builtin::call(octave::tree_evaluator&, int,
octave_value_list const&) libinterp/octave-value/ov-builtin.cc:65
    #4 0x7fe7cd6faaa1 in
octave::tree_evaluator::visit_index_expression(octave::tree_index_expression&)
libinterp/parse-tree/pt-eval.cc:1252
    #5 0x7fe7cd72d9ec in
octave::tree_index_expression::accept(octave::tree_walker&)
libinterp/parse-tree/pt-idx.h:101
    #6 0x7fe7cd585556 in
octave::tree_evaluator::evaluate_n(octave::tree_expression*, int)
libinterp/parse-tree/pt-eval.h:284
    #7 0x7fe7cd6fdd3f in
octave::tree_evaluator::visit_multi_assignment(octave::tree_multi_assignment&)
libinterp/parse-tree/pt-eval.cc:1751
    #8 0x7fe7cd6e5b5a in
octave::tree_multi_assignment::accept(octave::tree_walker&)
libinterp/parse-tree/pt-assign.h:148
    #9 0x7fe7cd485e92 in
octave::tree_evaluator::evaluate(octave::tree_expression*, int)
libinterp/parse-tree/pt-eval.h:271
    #10 0x7fe7cd701164 in
octave::tree_evaluator::visit_statement(octave::tree_statement&)
libinterp/parse-tree/pt-eval.cc:2209
    #11 0x7fe7cd73f13e in octave::tree_statement::accept(octave::tree_walker&)
libinterp/parse-tree/pt-stmt.h:112
    #12 0x7fe7cd70147f in
octave::tree_evaluator::visit_statement_list(octave::tree_statement_list&)
libinterp/parse-tree/pt-eval.cc:2251
    #13 0x7fe7cd486730 in
octave::tree_statement_list::accept(octave::tree_walker&)
libinterp/parse-tree/pt-stmt.h:187
    #14 0x7fe7cdb886e4 in octave::interpreter::main_loop()
libinterp/corefcn/interpreter.cc:974
    #15 0x7fe7cdb86577 in octave::interpreter::execute()
libinterp/corefcn/interpreter.cc:695
    #16 0x7fe7ccedd3eb in octave::cli_application::execute()
libinterp/octave.cc:384
    #17 0x401d7c in main src/main-cli.cc:90
    #18 0x7fe7ca66282f in __libc_start_main
(/lib/x86_64-linux-gnu/libc.so.6+0x2082f)
    #19 0x401808 in _start
(/home/rik/wip/Projects_Mine/octave-dbg/src/.libs/lt-octave-cli+0x401808)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV
/home/rik/local/include/octave-4.3.0+/octave/../octave/oct-refcount.h:91
octave::refcount<long>::operator++(int)
==6080==ABORTING







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