Server : Apache System : Linux server2.corals.io 4.18.0-348.2.1.el8_5.x86_64 #1 SMP Mon Nov 15 09:17:08 EST 2021 x86_64 User : corals ( 1002) PHP Version : 7.4.33 Disable Function : exec,passthru,shell_exec,system Directory :  /opt/rh/gcc-toolset-11/root/usr/share/systemtap/examples/general/

Upload File : current_dir [ Writeable ] document_root [ Writeable ]

#!/opt/rh/gcc-toolset-11/root/usr/bin/stap

global var%, varerr

probe $1 {
  if (@defined($2)) {
     try {
         newvar = $2;
         if (var[tid()] != newvar) {
            printf("%s[%d] %s %s:\n", execname(), tid(), pp(), @2);
            println(newvar);
            var[tid()] = newvar;
         }
     } catch { varerr ++ }  # error during $2 resolution or perhaps var[] assignment
  }
}

probe error,end {
  if (varerr) printf("%s %s access errors: %d", @1, @2, varerr);
}