----- Original Message ----- > From: "Shariyar" <syed.shari...@gmail.com> > To: lttng-dev@lists.lttng.org > Sent: Tuesday, December 10, 2013 2:39:40 PM > Subject: Re: [lttng-dev] What are sys calls starting with compat?
> What does sys_unknown mean and why doe it occur? Does it mean that LTTng can > not find the name of system call? Yes. It means the ID of the system call is unknown to LTTng (e.g. kernel newer than LTTng system call instrumentation). Thanks, Mathieu > Regards, > Shariyar > ------------------------------ > Message: 2 > Date: Tue, 10 Dec 2013 15:31:19 +0000 (UTC) > From: Mathieu Desnoyers < mathieu.desnoy...@efficios.com > > To: Daniel Thibault < daniel.thiba...@drdc-rddc.gc.ca > > Cc: lttng-dev@lists.lttng.org > Subject: Re: [lttng-dev] What are sys calls starting with compat? > Message-ID: > < 1571110803.82672.1386689479225.javamail.zim...@efficios.com > > Content-Type: text/plain; charset=utf-8 > ----- Original Message ----- > > From: "Daniel Thibault" < daniel.thiba...@drdc-rddc.gc.ca > > > To: lttng-dev@lists.lttng.org > > Cc: "Mathieu Desnoyers" < mathieu.desnoy...@efficios.com > > > Sent: Tuesday, December 10, 2013 9:57:21 AM > > Subject: Re: [lttng-dev] What are sys calls starting with compat? > > > > > Date: Tue, 10 Dec 2013 01:55:48 +0000 (UTC) > > > > > > System calls with "compat" prefix are for e.g. 32-bit processes running > > > on > > > a 64-bit kernel: > > > those processes are using a different system call table (ia32 for Intel) > > > than 64-bit processes, > > > and therefore those system calls are named "compat_*" by LTTng. > > > > > > Mathieu > > > > I presume the LTTng event names will also be prefixed with "compat_". > Yes. > > For > > instance, "compat_sys_rmdir". > Yes. > > Or would it be "sys_compat_rmdir"? > No. > > And > > what of the exit_syscall and sys_unknown events? > exit_syscall has no compat prefix as I recall. > compat_sys_unknown. > Thanks, > Mathieu > _______________________________________________ > lttng-dev mailing list > lttng-dev@lists.lttng.org > http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev -- Mathieu Desnoyers EfficiOS Inc. http://www.efficios.com
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