(CommandList children: [ (Assignment keyword: Assign_None pairs: [ (assign_pair lhs: (LhsName name:tracing) op: Equal rhs: {(/sys/kernel/debug/tracing)} spids: [112] ) ] spids: [112] ) (Assignment keyword: Assign_None pairs: [ (assign_pair lhs: (LhsName name:flock) op: Equal rhs: {(/var/tmp/.ftrace-lock)} spids: [115] ) ] spids: [115] ) (Sentence child: (Assignment keyword: Assign_None pairs: [(assign_pair lhs:(LhsName name:opt_force) op:Equal rhs:{(0)} spids:[118])] spids: [118] ) terminator: <Op_Semi ';'> ) (Assignment keyword: Assign_None pairs: [(assign_pair lhs:(LhsName name:opt_quiet) op:Equal rhs:{(0)} spids:[122])] spids: [122] ) (FuncDef name: usage body: (BraceGroup children: [ (SimpleCommand words: [{(cat)}] redirects: [ (HereDoc op_id: Redir_DLessDash fd: 16777215 body: { (DQ ('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') ) } do_expansion: True here_end: END was_filled: True spids: [135] ) (Redir op_id:Redir_GreatAnd fd:16777215 arg_word:{(2)} spids:[138]) ] ) (C {(exit)}) ] spids: [130] ) spids: [126 129] ) (FuncDef name: warn body: (BraceGroup children: [ (If arms: [ (if_arm cond: [ (Sentence child: (Pipeline children:[(C {(eval)} {(DQ ($ VSub_At '$@'))})] negated:True) terminator: <Op_Semi ';'> ) ] action: [ (SimpleCommand words: [ {(echo)} { (DQ ('WARNING: command failed ') (EscapedLiteralPart token: <Lit_EscapedChar '\\"'> ) ($ VSub_At '$@') (EscapedLiteralPart token:<Lit_EscapedChar '\\"'>) ) } ] redirects: [(Redir op_id:Redir_GreatAnd fd:16777215 arg_word:{(2)} spids:[177])] ) ] spids: [16777215 172] ) ] spids: [16777215 188] ) ] spids: [158] ) spids: [154 157] ) (FuncDef name: die body: (BraceGroup children: [ (SimpleCommand words: [{(echo)} {(DQ ($ VSub_At '$@'))}] redirects: [(Redir op_id:Redir_GreatAnd fd:16777215 arg_word:{(2)} spids:[202])] ) (C {(exit)} {(1)}) ] spids: [197] ) spids: [193 196] ) (FuncDef name: vecho body: (BraceGroup children: [ (AndOr children: [ (DParen child:(ArithVarRef name:opt_quiet)) (ControlFlow token:<ControlFlow_Return return>) ] op_id: Op_DAmp ) (C {(echo)} {(DQ ($ VSub_At '$@'))}) ] spids: [221] ) spids: [217 220] ) (FuncDef name: writefile body: (BraceGroup children: [ (Assignment keyword: Assign_None pairs: [ (assign_pair lhs: (LhsName name:file) op: Equal rhs: {($ VSub_Number '$1')} spids: [255] ) ] spids: [255] ) (Assignment keyword: Assign_None pairs: [ (assign_pair lhs: (LhsName name:string) op: Equal rhs: {($ VSub_Number '$2')} spids: [259] ) ] spids: [259] ) (If arms: [ (if_arm cond: [ (Sentence child: (DBracket expr: (LogicalNot child: (BoolUnary op_id:BoolUnary_w child:{($ VSub_Name '$file')}) ) ) terminator: <Op_Semi ';'> ) ] action: [ (SimpleCommand words: [ {(echo)} { (DQ ('WARNING: file ') ($ VSub_Name '$file') (' not writable/exists. Skipping.') ) } ] redirects: [(Redir op_id:Redir_GreatAnd fd:16777215 arg_word:{(2)} spids:[284])] ) (ControlFlow token:<ControlFlow_Return return>) ] spids: [16777215 279] ) ] spids: [16777215 297] ) (C {(vecho)} {(DQ ($ VSub_Name '$file') (', before:'))}) (AndOr children: [ (DParen child: (ArithUnary op_id:Arith_Bang child:(ArithVarRef name:opt_quiet)) ) (C {(cat)} {(-n)} {($ VSub_Name '$file')}) ] op_id: Op_DAmp ) (C {(warn)} {(DQ ('echo ') ($ VSub_Name '$string') (' > ') ($ VSub_Name '$file'))}) (C {(vecho)} {(DQ ($ VSub_Name '$file') (', after:'))}) (AndOr children: [ (DParen child: (ArithUnary op_id:Arith_Bang child:(ArithVarRef name:opt_quiet)) ) (C {(cat)} {(-n)} {($ VSub_Name '$file')}) ] op_id: Op_DAmp ) (C {(vecho)}) ] spids: [252] ) spids: [248 251] ) (While cond: [(C {(getopts)} {(fhq)} {(opt)})] body: (DoGroup children: [ (Case to_match: {($ VSub_Name '$opt')} arms: [ (case_arm pat_list: [{(f)}] action: [ (Assignment keyword: Assign_None pairs: [ (assign_pair lhs: (LhsName name:opt_force) op: Equal rhs: {(1)} spids: [391] ) ] spids: [391] ) ] spids: [388 389 394 16777215] ) (case_arm pat_list: [{(q)}] action: [ (Assignment keyword: Assign_None pairs: [ (assign_pair lhs: (LhsName name:opt_quiet) op: Equal rhs: {(1)} spids: [400] ) ] spids: [400] ) ] spids: [397 398 403 16777215] ) (case_arm pat_list: [{(h)} {(Lit_Other '?')}] action: [(C {(usage)})] spids: [406 409 413 16777215] ) ] spids: [381 385 416] ) ] spids: [378 418] ) ) (C {(shift)} { (ArithSubPart anode: (ArithBinary op_id: Arith_Minus left: (ArithWord w:{($ VSub_Name '$OPTIND')}) right: (ArithWord w:{(Lit_Digits 1)}) ) spids: [422 431] ) } ) (If arms: [ (if_arm cond: [ (Sentence child: (DBracket expr:(BoolUnary op_id:BoolUnary_e child:{($ VSub_Name '$flock')})) terminator: <Op_Semi ';'> ) ] action: [ (If arms: [ (if_arm cond: [ (Sentence child: (DParen child:(ArithVarRef name:opt_force)) terminator: <Op_Semi ';'> ) ] action: [(C {(warn)} {(rm)} {($ VSub_Name '$flock')})] spids: [16777215 461] ) ] else_action: [ (SimpleCommand words: [ {(echo)} {(-e)} {(DQ ('ERROR: ftrace lock (') ($ VSub_Name '$flock') (') exists. It shows'))} { (DQ ('ftrace may be in use by PID ') (CommandSubPart command_list: (CommandList children:[(C {(cat)} {($ VSub_Name '$flock')})]) left_token: <Left_CommandSub '$('> spids: [491 495] ) (.) (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 op_id:Redir_GreatAnd fd:16777215 arg_word:{(2)} spids:[478])] ) (C {(exit)} {(1)}) ] spids: [471 519] ) ] spids: [16777215 448] ) ] spids: [16777215 521] ) (C {(vecho)} {(DQ ('Reseting ftrace state...'))}) (C {(vecho)}) (AndOr children: [ (C {(cd)} {($ VSub_Name '$tracing')}) (C {(die)} {(DQ ('ERROR: accessing tracing. Root user? Kernel has FTRACE?'))}) ] op_id: Op_DPipe ) (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.))}) ] )