| #!/bin/sh |
| # SPDX-License-Identifier: GPL-2.0 |
| # description: Register/unregister many kprobe events |
| |
| [ -f kprobe_events ] || exit_unsupported # this is configurable |
| |
| # ftrace fentry skip size depends on the machine architecture. |
| # Currently HAVE_KPROBES_ON_FTRACE defined on x86 and powerpc64le |
| case `uname -m` in |
| x86_64|i[3456]86) OFFS=5;; |
| ppc64le) OFFS=8;; |
| *) OFFS=0;; |
| esac |
| |
| echo "Setup up to 256 kprobes" |
| grep t /proc/kallsyms | cut -f3 -d" " | grep -v .*\\..* | \ |
| head -n 256 | while read i; do echo p ${i}+${OFFS} ; done > kprobe_events ||: |
| |
| echo 1 > events/kprobes/enable |
| echo 0 > events/kprobes/enable |
| echo > kprobe_events |
| echo "Waiting for unoptimizing & freeing" |
| sleep 5 |
| echo "Done" |
