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.
> + */
> +#define PTRACE_EVENTMSG_SYSCALL_ENTRY        0x80000000U
> +#define PTRACE_EVENTMSG_SYSCALL_EXIT 0x90000000U

Stupid question, why not

        #define PTRACE_EVENT_SYSCALL_ENTRY      8
        #define PTRACE_EVENT_SYSCALL_EXIT       9

right after other PTRACE_EVENT_* constants?

The next 3/3 tries to detect PTRACE_EVENT_SECCOMP case anyway, so I am not sure
I understand what "do not appear in task->ptrace_message by other means" 
actually
means...

Oleg.

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