NO core dump ?

Peter Asboeck (pas@servodata.co.at)
Mon, 06 May 1996 19:43:31 +0000

Everybody is happy if no core dump occurs. Ok, I'm not happy.
I have written a program and made some mistakes. The program
crashes _Segmentation fault_ - but no core dump.

Therefore I tested this one:

int main(unsigned int argc, char **argv)
{
char *p;

p = 0;
*p = 0;
}

compiled by /usr/bin/gcc -v -g -o x x.c

Reading specs from /usr/lib/gcc-lib/i486-linux/2.7.2/specs
gcc version 2.7.2
/usr/lib/gcc-lib/i486-linux/2.7.2/cpp -lang-c -v -undef -D__GNUC__=2
-D__GNUC_MINOR__=7 -D__ELF__ -Dunix -Di386 -Dlinux -D__ELF__ -D__unix__
-D__i386__ -D__linux__ -D__unix -D__i386 -D__linux -Asystem(unix)
-Asystem(posix) -Acpu(i386) -Amachine(i386) -g -D__i486__ x.c /tmp/cca00926.i
GNU CPP version 2.7.2 (i386 Linux/ELF)
#include "..." search starts here:
#include <...> search starts here:
/usr/local/include
/usr/i486-linux/include
/usr/lib/gcc-lib/i486-linux/2.7.2/include
/usr/include
End of search list.
/usr/lib/gcc-lib/i486-linux/2.7.2/cc1 /tmp/cca00926.i -quiet -dumpbase x.c
-g -version -o /tmp/cca00926.s
GNU C version 2.7.2 (i386 Linux/ELF) compiled by GNU C version 2.7.2.
/usr/i486-linux/bin/as -V -Qy -o /tmp/cca009261.o /tmp/cca00926.s
GNU assembler version 960228 (i486-linux), using BFD version 2.6.0.12
/usr/i486-linux/bin/ld -m elf_i386 -dynamic-linker /lib/ld-linux.so.1 -o x
/usr/lib/crt1.o /usr/lib/crti.o /usr/lib/crtbegin.o
-L/usr/lib/gcc-lib/i486-linux/2.7.2 -L/usr/i486-linux/lib /tmp/cca009261.o
-lgcc -lc -lgcc /usr/lib/crtend.o /usr/lib/crtn.o

ldd x reports
libc.so.5 => /lib/lic.so.5.3.12

./x works with

Segmentation fault

but no CORE DUMP.

Any ideas ?

BTW kernel 1.3.97 (working without problems).

Thanks Peter

Peter Asboeck e-mail: pas@servodata.co.at
s-mail: Peter Asboeck
c/o Servo Data Ges.m.b.H.
J.-K.-Vogelstr. 2
A-4020 Linz
Austria/Europe