Hi Pintu, > Hi All, > I was just wondering if this is possible in the Linux world. > My requirement is: > For some reason, I want to halt/pause the execution (for some > specified time) of a running process/thread (at some location), > without modified the source, may be by firing some events/signals from > an another external program, by specifying the address location or a > line number. > > Is this possible ? > May be by using some system call, or other mechanism using the process PID. > Assume that its a debugging system with all root privileges. > > Basically, its just like how "gdb" is able to set the break-point in a > program, and able to stop its execution exactly at that location. > I am wondering what mechanism "gdb" uses to do this? gdb uses ptrace system call, may you can explore ptrace? > I tried to check here, but could find the exact place, where this is handled: > https://github.com/bminor/binutils-gdb/blob/master/gdb/breakpoint.c from command line we use ctrl-z to stop execution of a foreground process but you can program SIGTSTP signal handler in your application code to do the same. is that you want ? Thanks a lot, Shyam _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
