On Tue, Nov 27, 2018 at 03:53:57AM +0100, Elvira Khabirova wrote:
> On Mon, 26 Nov 2018 15:56:43 +0100, Oleg Nesterov wrote:
> > On 11/25, Elvira Khabirova wrote:
> > >
> > > + * These values are stored in task->ptrace_message by
> > > tracehook_report_syscall_*
> > > + * to describe current sysca
On Mon, 26 Nov 2018 15:56:43 +0100
Oleg Nesterov wrote:
> On 11/25, Elvira Khabirova wrote:
> >
> > + * These values are stored in task->ptrace_message by
> > tracehook_report_syscall_*
> > + * to describe current syscall-stop.
> > + *
> > + * Values for these constants are chosen so that they d
On 11/25, Elvira Khabirova wrote:
>
> + * These values are stored in task->ptrace_message by
> tracehook_report_syscall_*
> + * to describe current syscall-stop.
> + *
> + * Values for these constants are chosen so that they do not appear
> + * in task->ptrace_message by other means.
> + */
> +#de
On Sun, Nov 25, 2018 at 05:10:59AM +0300, Dmitry V. Levin wrote:
> Given that without this patch the value returned by PTRACE_GETEVENTMSG
> during syscall stop is undefined, we need two different ptrace_message
> values that cannot be set by other ptrace events to enable reliable
> identification o
On Sat, Nov 24, 2018 at 03:54:02PM -1000, Joey Pabalinas wrote:
> On Sun, Nov 25, 2018 at 02:22:27AM +0100, Elvira Khabirova wrote:
> > Define two constants, PTRACE_EVENTMSG_SYSCALL_ENTRY and
> > PTRACE_EVENTMSG_SYSCALL_EXIT, and place them in ptrace_message
> > for the duration of syscall-stops.
>
On Sun, Nov 25, 2018 at 02:22:27AM +0100, Elvira Khabirova wrote:
> Define two constants, PTRACE_EVENTMSG_SYSCALL_ENTRY and
> PTRACE_EVENTMSG_SYSCALL_EXIT, and place them in ptrace_message
> for the duration of syscall-stops.
> This way ptracers can distinguish syscall-enter-stops
> from syscall-ex
Define two constants, PTRACE_EVENTMSG_SYSCALL_ENTRY and
PTRACE_EVENTMSG_SYSCALL_EXIT, and place them in ptrace_message
for the duration of syscall-stops.
This way ptracers can distinguish syscall-enter-stops
from syscall-exit-stops using PTRACE_GETEVENTMSG request.
Signed-off-by: Elvira Khabirova
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