how to pass argument to the C program in the gdb mode of emacs

Question

I used the gdb mode in emacs to run a small code counting the number of digits in a string, but when I type in the string (using the keyboard), the gdb did nothing but wait forever after I hit the "enter" button. I also tried gdb with Unix prompt directly and everything went smoothly. So is there any trick in passing the argument into the program in the gdb mode of emacs？

Are you referring to command-line arguments or arguments read from the standard input? — François Févotte
– François Févotte, Commented Mar 24, 2013 at 21:16

François Févotte · Accepted Answer · 2013-03-24 21:20:27Z

2

The canonical way to pass arguments to the debugged program is to add them after gdb's run command.

For example:

M-xgdbRETechoRET

Current directory is ~/
GNU gdb (GDB) 7.3-debian
[...]
Reading symbols from /bin/echo...(no debugging symbols found)...done.
(gdb) run foo
Starting program: /bin/echo foo
foo
[Inferior 1 (process 10176) exited normally]

answered Mar 24, 2013 at 21:20

François Févotte

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