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#!/usr/bin/env bpftrace
/*
* execsnoop.bt Trace new processes via exec() syscalls.
* For Linux, uses bpftrace and eBPF.
*
* This traces when processes call exec(). It is handy for identifying new
* processes created via the usual fork()->exec() sequence. Note that the
* return value is not currently traced, so the exec() may have failed.
*
* TODO: switch to tracepoints args. Support more args. Include retval.
*
* This is a bpftrace version of the bcc tool of the same name.
*
* 15-Nov-2017 Brendan Gregg Created this.
* 11-Sep-2018 " " Switched to use join().
*/
#ifndef BPFTRACE_HAVE_BTF
#include <linux/sched.h>
#endif
BEGIN
{
printf("%-15s %-7s %-7s %s\n", "TIME", "PID", "PPID", "ARGS");
}
tracepoint:syscalls:sys_enter_exec*
{
$task = (struct task_struct *)curtask;
printf("%15s %-7d %-7d ", strftime("%H:%M:%S.%f", nsecs), pid, $task->real_parent->pid);
join(args.argv);
}
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