2 # SPDX-License-Identifier: GPL-2.0
3 # description: Register/unregister many kprobe events
5 [ -f kprobe_events ] || exit_unsupported # this is configurable
7 # ftrace fentry skip size depends on the machine architecture.
8 # Currently HAVE_KPROBES_ON_FTRACE defined on x86 and powerpc64le
10 x86_64|i[3456]86) OFFS=5;;
15 echo "Setup up kprobes on first 256 text symbols"
16 grep -i " t " /proc/kallsyms | cut -f3 -d" " | grep -v .*\\..* | \
17 head -n 256 | while read i; do echo p ${i}+${OFFS} ; done > kprobe_events ||:
19 echo 1 > events/kprobes/enable
20 echo 0 > events/kprobes/enable
22 echo "Waiting for unoptimizing & freeing"