system() cause core dump
2007-12-25 11:15:00
Thanks for all response.
The problem is solved, but I don't know why. In system() arguments, I
used compile another program. If argument's executable name is different
with program's executable name. works fine. I guess when I run program's
executable, e.g. a.out, the system() output a.out will overwrite it.
What I don't understand is that I run it same way on our university's
enterprise3000 and Ultrix without problem, it crash on my ultra2!
Thanks!
Feng
ORIGINAL QUESTION:
-------------------------------
> Hello, all,
> I have Ultra2 with solaris7. gcc 2.8.1 is installed.
> Every time I use system() function in my program, executable will
cause
> core dump.
> Is there someone know what cause this problem?
> Thanks!
RESPONSE:
--------------------------
Bertrand_Hutin@notes.amdahl.com
bad arguments to system().
David Robillard <David.Robillard@Matrox.COM>
Could that be it;
sparc-sun-solaris2.7
Sun patch 107058-01 (1999-01-13) for SPARC Solaris 7 triggers a bug
in
the dynamic linker. This problem (Sun bug 4210064) affects GCC 2.8
and
later, including all EGCS releases. To avoid this problem, do not
install Sun patch 107058-01 until after Sun releases a patch for bug
4210064. Sun has a fix for this bug but (as of 1999-06-24) has not
yet
released it as a patch.
In hope Sun does cares to make a patch for this, as we almost all use
gcc
instead of Sun's cc...
Adrian Stovall <adrians@solarsystems.com>
check the application specific notes for solaris 2.7 on www.gnu.org.
They
have a few notes about specific patches to Solaris 2.7 breaking gcc/g++.
David Foster <foster@dim.ucsd.edu>
First, when you build a command string for system(), be sure you
include spaces
between the arguments; you don't in your second example.
I usually have my cmd strings printed out while I am debugging.
It`s not the system() call itself that's causing the core dump, it's
what
you're putting into it.
Try doing just system("ls").
kevin@joltin.com (Kevin Sheehan {Consulting Poster Child})
a) some code to look at would help
b) have you tried truss -f?
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