| #!/bin/sh |
| # SPDX-License-Identifier: GPL-2.0 |
| # description: Generic dynamic event - add/remove probes with BTF arguments |
| # requires: dynamic_events "<argname>":README |
| |
| KPROBES= |
| FPROBES= |
| |
| if grep -qF "p[:[<group>/][<event>]] <place> [<args>]" README ; then |
| KPROBES=yes |
| fi |
| if grep -qF "f[:[<group>/][<event>]] <func-name>[%return] [<args>]" README ; then |
| FPROBES=yes |
| fi |
| |
| if [ -z "$KPROBES" -a -z "$FPROBES" ] ; then |
| exit_unsupported |
| fi |
| |
| echo 0 > events/enable |
| echo > dynamic_events |
| |
| TP=kfree |
| |
| if [ "$FPROBES" ] ; then |
| echo "f:fpevent $TP object" >> dynamic_events |
| echo "t:tpevent $TP ptr" >> dynamic_events |
| |
| grep -q "fpevent.*object=object" dynamic_events |
| grep -q "tpevent.*ptr=ptr" dynamic_events |
| |
| echo > dynamic_events |
| |
| echo "f:fpevent $TP "'$arg1' >> dynamic_events |
| grep -q "fpevent.*object=object" dynamic_events |
| echo > dynamic_events |
| |
| echo "f:fpevent $TP "'$arg*' >> dynamic_events |
| echo "t:tpevent $TP "'$arg*' >> dynamic_events |
| |
| grep -q "fpevent.*object=object" dynamic_events |
| grep -q "tpevent.*ptr=ptr" dynamic_events |
| ! grep -q "tpevent.*_data" dynamic_events |
| fi |
| |
| echo > dynamic_events |
| |
| if [ "$KPROBES" ] ; then |
| echo "p:kpevent $TP object" >> dynamic_events |
| grep -q "kpevent.*object=object" dynamic_events |
| |
| echo > dynamic_events |
| |
| echo "p:kpevent $TP "'$arg*' >> dynamic_events |
| grep -q "kpevent.*object=object" dynamic_events |
| fi |
| |
| clear_trace |
