Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: gdb (Ubuntu)
Status: New => Confirmed
--
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to gdb in Ubuntu.
https://bugs.launchpad.net/bugs/1224651
Title:
gdb displays wrong values for variables while debugging c code
Status in “gdb” package in Ubuntu:
Confirmed
Bug description:
Hi,
gdb shows wrong values for variables when displayed through "print <variable
name>" command. Although it is not the case always and I cannot figure out
under what circumstances this happens.
I checked the value of the variable by adding printf command directly in the
code, the actual value printed to stdout is correct. Only the gdb shows wrong
value.
Environment details :
Linux mint 15 (based on Ubuntu 13.04)
gdb version :
GNU gdb (GDB) 7.5.91.20130417-cvs-ubuntu
gdb configuration:
"i686-linux-gnu"
steps to reproduce the bug:
compile the attached c source code (source code is a simple demo of
getopt_long function) using,
gcc -o gdb_bug_rpt gdb_bug_rpt.c -g -Wall -pedantic
run the code using gdb
gdb ./gdb_bug_rpt
cmds given below are gdb commands,
(gdb)break main
(gdb)run -o file1 file 2 file3
(gdb)next
...
(gdb)next (step through the code until line -- printf ("value of
optind = %d\n", optind);
now check value of optind variable using print cmd
(gdb)print optind
gdb will display the value to be 1, but the actual value is 3 ,which you can
see by executing the printf line.
Also the value of optind is assigned to variable i.you can also check the
value of i using print i after executing the foe loop for the first time. the
value of i is also found to be 3.
But gdb displays wrong values to the user.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/gdb/+bug/1224651/+subscriptions
--
Mailing list: https://launchpad.net/~touch-packages
Post to : touch-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~touch-packages
More help : https://help.launchpad.net/ListHelp
