[PATCH RESEND v3 1/3] ptrace: pass type of a syscall-stop in ptrace_message

Joey Pabalinas joeypabalinas at gmail.com
Sun Nov 25 01:54:02 UTC 2018

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-exit-stops using PTRACE_GETEVENTMSG request.

Is there an advantage to using two constants instead of a single
sys_exit bit (set/unset for syscall-exit-stop/syscall-enter-stop)?

Joey Pabalinas
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