(command.CommandList children: [ (command.Assignment keyword: Assign_None pairs: [ (assign_pair lhs: (lhs_expr.LhsName name:tracing spids:[112]) op: Equal rhs: {(/sys/kernel/debug/tracing)} spids: [112] ) ] spids: [112] ) (command.Assignment keyword: Assign_None pairs: [ (assign_pair lhs: (lhs_expr.LhsName name:flock spids:[115]) op: Equal rhs: {(/var/tmp/.ftrace-lock)} spids: [115] ) ] spids: [115] ) (command.CommandList children: [ (command.Sentence child: (command.Assignment keyword: Assign_None pairs: [ (assign_pair lhs: (lhs_expr.LhsName name:opt_force spids:[118]) op: Equal rhs: {(0)} spids: [118] ) ] spids: [118] ) terminator: <Op_Semi ';'> ) (command.Assignment keyword: Assign_None pairs: [ (assign_pair lhs: (lhs_expr.LhsName name:opt_quiet spids:[122]) op: Equal rhs: {(0)} spids: [122] ) ] spids: [122] ) ] ) (command.FuncDef name: usage body: (command.BraceGroup children: [ (command.SimpleCommand words: [{(cat)}] redirects: [ (redir.HereDoc op: <Redir_DLessDash '<<-'> fd: 16777215 here_begin: {(END)} here_end_span_id: 148 stdin_parts: [ ('USAGE: reset-ftrace [-fhq]\n') (' -f # force: delete ftrace lock file\n') (' -q # quiet: reset, but say nothing\n') (' -h # this usage message\n') (' eg,\n') (' reset-ftrace # disable active ftrace session\n') ] ) (redir.Redir op:<Redir_GreatAnd '>&'> fd:16777215 arg_word:{(2)}) ] ) (command.ControlFlow token:<ControlFlow_Exit exit>) ] spids: [130] ) spids: [126 129] ) (command.FuncDef name: warn body: (command.BraceGroup children: [ (command.If arms: [ (if_arm cond: [ (command.Sentence child: (command.Pipeline children: [(C {(eval)} {(DQ ($ VSub_At '$@'))})] negated: T ) terminator: <Op_Semi ';'> ) ] action: [ (command.SimpleCommand words: [ {(echo)} { (DQ ('WARNING: command failed ') (word_part.EscapedLiteralPart token: <Lit_EscapedChar '\\"'> ) ($ VSub_At '$@') (word_part.EscapedLiteralPart token:<Lit_EscapedChar '\\"'>) ) } ] redirects: [(redir.Redir op:<Redir_GreatAnd '>&'> fd:16777215 arg_word:{(2)})] ) ] spids: [16777215 173] ) ] spids: [16777215 189] ) ] spids: [159] ) spids: [155 158] ) (command.FuncDef name: die body: (command.BraceGroup children: [ (command.SimpleCommand words: [{(echo)} {(DQ ($ VSub_At '$@'))}] redirects: [(redir.Redir op:<Redir_GreatAnd '>&'> fd:16777215 arg_word:{(2)})] ) (command.ControlFlow token:<ControlFlow_Exit exit> arg_word:{(1)}) ] spids: [198] ) spids: [194 197] ) (command.FuncDef name: vecho body: (command.BraceGroup children: [ (command.AndOr ops: [Op_DAmp] children: [ (command.DParen child: (arith_expr.ArithVarRef token:<Lit_ArithVarLike opt_quiet>) spids: [225 230] ) (command.ControlFlow token:<ControlFlow_Return return>) ] ) (C {(echo)} {(DQ ($ VSub_At '$@'))}) ] spids: [222] ) spids: [218 221] ) (command.FuncDef name: writefile body: (command.BraceGroup children: [ (command.Assignment keyword: Assign_None pairs: [ (assign_pair lhs: (lhs_expr.LhsName name:file spids:[256]) op: Equal rhs: {($ VSub_Number '$1')} spids: [256] ) ] spids: [256] ) (command.Assignment keyword: Assign_None pairs: [ (assign_pair lhs: (lhs_expr.LhsName name:string spids:[260]) op: Equal rhs: {($ VSub_Number '$2')} spids: [260] ) ] spids: [260] ) (command.If arms: [ (if_arm cond: [ (command.Sentence child: (command.DBracket expr: (bool_expr.LogicalNot child: (bool_expr.BoolUnary op_id: BoolUnary_w child: {($ VSub_DollarName '$file')} ) ) ) terminator: <Op_Semi ';'> ) ] action: [ (command.SimpleCommand words: [ {(echo)} { (DQ ('WARNING: file ') ($ VSub_DollarName '$file') (' not writable/exists. Skipping.') ) } ] redirects: [(redir.Redir op:<Redir_GreatAnd '>&'> fd:16777215 arg_word:{(2)})] ) (command.ControlFlow token:<ControlFlow_Return return>) ] spids: [16777215 280] ) ] spids: [16777215 298] ) (C {(vecho)} {(DQ ($ VSub_DollarName '$file') (', before:'))}) (command.AndOr ops: [Op_DAmp] children: [ (command.DParen child: (arith_expr.ArithUnary op_id: Arith_Bang child: (arith_expr.ArithVarRef token:<Lit_ArithVarLike opt_quiet>) ) spids: [309 316] ) (C {(cat)} {(-n)} {($ VSub_DollarName '$file')}) ] ) (C {(warn)} {(DQ ('echo ') ($ VSub_DollarName '$string') (' > ') ($ VSub_DollarName '$file'))} ) (C {(vecho)} {(DQ ($ VSub_DollarName '$file') (', after:'))}) (command.AndOr ops: [Op_DAmp] children: [ (command.DParen child: (arith_expr.ArithUnary op_id: Arith_Bang child: (arith_expr.ArithVarRef token:<Lit_ArithVarLike opt_quiet>) ) spids: [345 352] ) (C {(cat)} {(-n)} {($ VSub_DollarName '$file')}) ] ) (C {(vecho)}) ] spids: [253] ) spids: [249 252] ) (command.WhileUntil keyword: <KW_While while> cond: [(C {(getopts)} {(fhq)} {(opt)})] body: (command.DoGroup children: [ (command.Case to_match: {($ VSub_DollarName '$opt')} arms: [ (case_arm pat_list: [{(f)}] action: [ (command.Assignment keyword: Assign_None pairs: [ (assign_pair lhs: (lhs_expr.LhsName name:opt_force spids:[392]) op: Equal rhs: {(1)} spids: [392] ) ] spids: [392] ) ] spids: [389 390 395 16777215] ) (case_arm pat_list: [{(q)}] action: [ (command.Assignment keyword: Assign_None pairs: [ (assign_pair lhs: (lhs_expr.LhsName name:opt_quiet spids:[401]) op: Equal rhs: {(1)} spids: [401] ) ] spids: [401] ) ] spids: [398 399 404 16777215] ) (case_arm pat_list: [{(h)} {(Lit_Other '?')}] action: [(C {(usage)})] spids: [407 410 414 16777215] ) ] spids: [382 386 417] ) ] spids: [379 419] ) ) (C {(shift)} { (word_part.ArithSubPart anode: (arith_expr.ArithBinary op_id: Arith_Minus left: (arith_expr.ArithWord w:{($ VSub_DollarName '$OPTIND')}) right: (arith_expr.ArithWord w:{(Lit_Digits 1)}) ) spids: [423 432] ) } ) (command.If arms: [ (if_arm cond: [ (command.Sentence child: (command.DBracket expr: (bool_expr.BoolUnary op_id:BoolUnary_e child:{($ VSub_DollarName '$flock')}) ) terminator: <Op_Semi ';'> ) ] action: [ (command.If arms: [ (if_arm cond: [ (command.Sentence child: (command.DParen child: (arith_expr.ArithVarRef token:<Lit_ArithVarLike opt_force>) spids: [454 459] ) terminator: <Op_Semi ';'> ) ] action: [(C {(warn)} {(rm)} {($ VSub_DollarName '$flock')})] spids: [16777215 462] ) ] else_action: [ (command.SimpleCommand words: [ {(echo)} {(-e)} { (DQ ('ERROR: ftrace lock (') ($ VSub_DollarName '$flock') (') exists. It shows')) } { (DQ ('ftrace may be in use by PID ') (word_part.CommandSubPart command_list: (command.CommandList children: [(C {(cat)} {($ VSub_DollarName '$flock')})] ) left_token: <Left_CommandSub '$('> spids: [492 496] ) (.) (Lit_Other '\\') ('nDouble check') ) } {(DQ ('to see if that PID is still active. If not, consider'))} {(DQ ('using -f to force a reset. Exiting.'))} ] redirects: [(redir.Redir op:<Redir_GreatAnd '>&'> fd:16777215 arg_word:{(2)})] ) (command.ControlFlow token:<ControlFlow_Exit exit> arg_word:{(1)}) ] spids: [472 520] ) ] spids: [16777215 449] ) ] spids: [16777215 522] ) (C {(vecho)} {(DQ ('Reseting ftrace state...'))}) (C {(vecho)}) (command.AndOr ops: [Op_DPipe] children: [ (C {(cd)} {($ VSub_DollarName '$tracing')}) (C {(die)} {(DQ ('ERROR: accessing tracing. Root user? Kernel has FTRACE?'))}) ] ) (C {(writefile)} {(current_tracer)} {(nop)}) (C {(writefile)} {(set_ftrace_filter)}) (C {(writefile)} {(set_graph_function)}) (C {(writefile)} {(set_ftrace_pid)}) (C {(writefile)} {(events/enable)} {(0)}) (C {(writefile)} {(tracing_thresh)} {(0)}) (C {(writefile)} {(kprobe_events)}) (C {(writefile)} {(tracing_on)} {(1)}) (C {(vecho)} {(DQ (Done.))}) ] )