putting breakpoint in a file using “rbreak filename.c:.” doesn't work

Question

I want to put breakpoint on all functions of a file. I came across this link : http://sourceware.org/gdb/download/onlinedocs/gdb/Set-Breaks.html#Set-Breaks

It sugges

Answer 1

rbreak filename.c:.

That isn't supposed to work. From the document you linked to:

rbreak regex
Set breakpoints on all *functions* matching the regular expression regex.

This is different from locations, where filename.c:... is intended to be used.

I want to put breakpoint on all functions of a file.

This is an unusual request. In my many years of debugging, I've never needed to do that.

You'll have to prepare a list, and set the breakpoints individually. A recipe for doing this can be found here.