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[Octave-bug-tracker] [bug #52650] Segfault when loading package via C++
From: |
anonymous |
Subject: |
[Octave-bug-tracker] [bug #52650] Segfault when loading package via C++ API |
Date: |
Tue, 12 Dec 2017 15:23:58 -0500 (EST) |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.100 Safari/537.36 |
URL:
<http://savannah.gnu.org/bugs/?52650>
Summary: Segfault when loading package via C++ API
Project: GNU Octave
Submitted by: None
Submitted on: Tue 12 Dec 2017 08:23:57 PM UTC
Category: Libraries
Severity: 3 - Normal
Priority: 5 - Normal
Item Group: Unexpected Error
Status: None
Assigned to: None
Originator Name: Christopher Friedt
Originator Email: address@hidden
Open/Closed: Open
Discussion Lock: Any
Release: 4.2.0
Operating System: GNU/Linux
_______________________________________________________
Details:
Hi,
I've been trying to use the C++ API, and I noticed a major unexpected
difference between versions 4.0.0 and 4.2.0.
Specifically, with 4.2.0, a segmentation fault occurs when I call
feval( "pkg", ovl( "load", "signal" ), 0 )
This didn't happen in Version 4.0.0, and should not happen according to the
documentation for 4.2.0.
https://www.gnu.org/software/octave/doc/v4.2.0/Standalone-Programs.html#Standalone-Programs
My C++ program is quite simple:
$ cat ~/Desktop/crash-liboctave.cpp
#include <iostream>
#include <octave/oct.h>
#include <octave/octave.h>
#include <octave/parse.h>
#include <octave/toplev.h>
int main ( int argc, char *argv[] ) {
string_vector octave_argv ( 2 );
octave_argv( 0 ) = "embedded";
octave_argv( 1 ) = "-q";
octave_main( 2, octave_argv.c_str_vec(), 1 );
feval( "pkg", ovl( "load", "signal" ), 0 );
clean_up_and_exit ( 0 );
}
Backtrace is below:
Program received signal SIGSEGV, Segmentation fault.
0x00007ffff73fe2a0 in tree_statement_list::accept(tree_walker&) () from
/usr/lib/octave/4.2.0/liboctinterp.so.4
(gdb) bt
#0 0x00007ffff73fe2a0 in tree_statement_list::accept(tree_walker&) () from
/usr/lib/octave/4.2.0/liboctinterp.so.4
#1 0x00007ffff7313296 in octave_user_function::do_multi_index_op(int,
octave_value_list const&, std::__cxx11::list<octave_lvalue,
std::allocator<octave_lvalue> > const*) () from
/usr/lib/octave/4.2.0/liboctinterp.so.4
#2 0x00007ffff730c704 in octave_user_function::do_multi_index_op(int,
octave_value_list const&) () from /usr/lib/octave/4.2.0/liboctinterp.so.4
#3 0x00007ffff7316c05 in octave_value::do_multi_index_op(int,
octave_value_list const&) () from /usr/lib/octave/4.2.0/liboctinterp.so.4
#4 0x00007ffff73a0c5b in feval(std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> > const&, octave_value_list
const&, int)
() from /usr/lib/octave/4.2.0/liboctinterp.so.4
#5 0x0000000000401de3 in main ()
_______________________________________________________
File Attachments:
-------------------------------------------------------
Date: Tue 12 Dec 2017 08:23:57 PM UTC Name: crash-liboctave.txt Size: 11KiB
By: None
<http://savannah.gnu.org/bugs/download.php?file_id=42621>
-------------------------------------------------------
Date: Tue 12 Dec 2017 08:23:57 PM UTC Name: crash-liboctave.cpp Size: 386B
By: None
<http://savannah.gnu.org/bugs/download.php?file_id=42622>
_______________________________________________________
Reply to this item at:
<http://savannah.gnu.org/bugs/?52650>
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