Date: Thu, 23 Nov 1995 10:15:50 +0100 (MET) From: J Wunsch <j@uriah.heep.sax.de> To: gavin@linux1.dlsu.edu.ph (Gavin Chan Lim) Cc: hackers@freebsd.org Subject: Re: ptrace() Message-ID: <199511230915.KAA26190@uriah.heep.sax.de> In-Reply-To: <Pine.LNX.3.91.951123133345.1208B-100000@ccslinux.dlsu.edu.ph> from "Gavin Chan Lim" at Nov 23, 95 01:36:09 pm
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As Gavin Chan Lim wrote: > > 1. What does "Attach/Detach to the process" mean? (PT_ATTACH, PT_DETACH)> Start/stop tracing a running process (by PID). Dunno if this is already working in FreeBSD. The "normal" case is to start the traced process under debugger control. > 2. Does request PT_READ_I mean read the text segment? > 3. Does request PT_READ_D mean read the data segment? Yup. > 4. What's the last argument (int data) of ptrace() for? Dunno, i think it's the data to read/write from/into the process image. -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)
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