Re: Timer
Marc Brünink <[email protected]>
| Newsgroups | gmane.comp.gdb.devel |
|---|---|
| Message-ID | <[email protected]> |
On May 7, 2013, at 12:43 PM, Doug Evans wrote: > On Mon, May 6, 2013 at 2:52 AM, Marc Brünink <[email protected]> wrote: >> I want to execute a piece of code at regular intervals. Actually I'm sampling $pc. >> (let's not go into detail why I use gdb) >> >> My current solution just starts another process that sends a SIGTRAP to the debugged application. Using a simple script I can print the $pc. >> >> However, I just realised that this approach does not work too well. If gdb is stopped due to a breakpoint it will interpret the received SIGTRAP as another hit of the very same breakpoint. >> >> Reproduce: >> 1. Attach to any program >> 2. Create any breakpoint >> 3. Wait until breakpoint is hit >> 4. Send SIGTRAP to debugged application >> 5. continue >> >> Actually, now that I think about it, I should have anticipated this behaviour. >> Is there a better way to execute a piece of code at regular intervals? > > bash$ man setitimer I suppose you are suggesting to modify either GDB or the application. This is exactly what I don't want. Any other way to accomplish this (using gdb)? Marc