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execsnoop: ensure tracing_on is enabled during execution #80

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execsnoop: ensure tracing_on is enabled during execution #80

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4 changes: 4 additions & 0 deletions execsnoop
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Original file line number Diff line number Diff line change
Expand Up @@ -91,6 +91,7 @@ function end {
echo 2>/dev/null
echo "Ending tracing..." 2>/dev/null
cd $tracing
warn "echo 0 > tracing_on"
warn "echo 0 > events/kprobes/$kname/enable"
warn "echo 0 > events/sched/sched_process_fork/enable"
warn "echo -:$kname >> kprobe_events"
Expand Down Expand Up @@ -198,6 +199,9 @@ if ! echo $kprobe >> kprobe_events 2>/dev/null; then
fi
fi
fi
if ! echo 1 > tracing_on; then
edie "ERROR: enabling tracing. Exiting."
fi
if ! echo 1 > events/kprobes/$kname/enable; then
edie "ERROR: enabling kprobe for execve. Exiting."
fi
Expand Down