# SPDX-License-Identifier: GPL-2.0-or-later
NAME
ssdd - have a tracer do a bunch of PTRACE_SINGLESTEPs
SYNOPSIS
ssdd [-f|--forks NUM] [-h|--help] [-i|--iters NUM] [--json FILENAME]
DESCRIPTION
Have a tracer do a bunch of PTRACE_SINGLESTEPs against a tracee as fast as possible. Create several of these tracer/tracee pairs and see if they can be made to interfere with each other. The tracer waits on each PTRACE_SINGLESTEP with a waitpid(2) and checks that waitpid's return values for correctness.
OPTIONS
- -f, --forks=NUM
-
number of tracer/tracee pairs to fork off.
Default is 10.
- -h, --help
-
Display usage
- -i, --iters=NUM
-
number of PTRACE_SINGLESTEP iterations to do before declaring success, for each tracer tracee pair set up.
Default is 10,000.
NUM must be at least 1
- --json=FILENAME
-
Write final results into FILENAME, JSON formatted.
AUTHOR
ssdd was written by Joe Korty <[email protected]>
This manual page was written by John Kacur <[email protected]>