Ar Llu, 2006-08-21 am 10:23 -0400, ysgrifennodd Ray Mansell: > Please forgive the naivety of this question, but my knowledge of Linux > is severely limited. > > Back in the good old days of VM and CMS, it was easy to load a program, > locate it in storage, set a few CP trace traps within it, and then start > it running. How can I do the same thing in Linux? Specifically, I'd like > to be able to trace the entire execution of a given program running > under Linux, but I have less than a clue as to how to do that.
The low level interface is ptrace (2) (see man 2 ptrace). Usually people deal with things at a higher level and the gdb debugger can do tracing and trapping of the application including things like "run into variable X is set". For "what is going on" type events there are tools called strace and ltrace which trace system calls and library calls respectively. Alan ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
