(command.CommandList children: [ (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:tracing) op: assign_op.Equal rhs: {<'/sys/kernel/debug/tracing'>} spids: [124] ) ] ) (command.CommandList children: [ (command.Sentence child: (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:opt_duration) op: assign_op.Equal rhs: {<0>} spids: [127] ) ] ) terminator: <Id.Op_Semi _> ) (command.Sentence child: (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:duration) op: assign_op.Equal rhs: (word.Empty) spids: [131] ) ] ) terminator: <Id.Op_Semi _> ) (command.Sentence child: (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:opt_interval) op: assign_op.Equal rhs: {<0>} spids: [134] ) ] ) terminator: <Id.Op_Semi _> ) (command.Sentence child: (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:interval) op: assign_op.Equal rhs: {<999999>} spids: [138] ) ] ) terminator: <Id.Op_Semi _> ) (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:opt_timestamp) op: assign_op.Equal rhs: {<0>} spids: [142] ) ] ) ] ) (command.CommandList children: [ (command.Sentence child: (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:opt_tail) op: assign_op.Equal rhs: {<0>} spids: [145] ) ] ) terminator: <Id.Op_Semi _> ) (command.Sentence child: (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:tcmd) op: assign_op.Equal rhs: {<cat>} spids: [149] ) ] ) terminator: <Id.Op_Semi _> ) (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:ttext) op: assign_op.Equal rhs: (word.Empty) spids: [153] ) ] ) ] ) (C {<trap>} {(SQ <'quit=1'>)} {<INT>} {<QUIT>} {<TERM>} {<PIPE>} {<HUP>}) (command.ShFunction name: usage body: (BraceGroup children: [ (command.Simple words: [{<cat>}] redirects: [ (redir op: <Id.Redir_DLessDash '<<-'> loc: (redir_loc.Fd fd:0) arg: (redir_param.HereDoc here_begin: {<END>} here_end_span_id: 217 stdin_parts: [ <'USAGE: funccount [-hT] [-i secs] [-d secs] [-t top] funcstring\n'> <' -d seconds # total duration of trace\n'> <' -h # this usage message\n'> <' -i seconds # interval summary\n'> <' -t top # show top num entries only\n'> <' -T # include timestamp (for -i)\n'> <' eg,\n'> <' funccount \'vfs*\' # trace all funcs that match '> <Id.Right_DoubleQuote '"'> <'vfs*'> <Id.Right_DoubleQuote '"'> <'\n'> <' funccount -d 5 \'tcp*\' # trace '> <Id.Right_DoubleQuote '"'> <'tcp*'> <Id.Right_DoubleQuote '"'> <' funcs for 5 seconds\n'> <' funccount -t 10 \'ext3*\' # show top 10 '> <Id.Right_DoubleQuote '"'> <'ext3*'> <Id.Right_DoubleQuote '"'> <' funcs\n'> <' funccount -i 1 \'ext3*\' # summary every 1 second\n'> <' funccount -i 1 -d 5 \'ext3*\' # 5 x 1 second summaries\n'> <'\n'> <'See the man page and example file for more info.\n'> ] ) ) (redir op:<Id.Redir_GreatAnd '>&'> loc:(redir_loc.Fd fd:1) arg:{<2>}) ] do_fork: T ) (command.ControlFlow token:<Id.ControlFlow_Exit exit>) ] ) ) (command.ShFunction name: warn body: (BraceGroup children: [ (command.If arms: [ (if_arm cond: (condition.Shell commands: [ (command.Sentence child: (command.Pipeline children: [(C {<eval>} {(DQ ($ Id.VSub_At '$@'))})] negated: T ) terminator: <Id.Op_Semi _> ) ] ) action: [ (command.Simple words: [ {<echo>} { (DQ <'WARNING: command failed '> (word_part.EscapedLiteral token: <Id.Lit_EscapedChar '\\"'> ) ($ Id.VSub_At '$@') (word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\"'>) ) } ] redirects: [(redir op:<Id.Redir_GreatAnd '>&'> loc:(redir_loc.Fd fd:1) arg:{<2>})] do_fork: T ) ] spids: [231 242] ) ] ) ] ) ) (command.ShFunction name: die body: (BraceGroup children: [ (command.Simple words: [{<echo>} {(DQ ($ Id.VSub_At '$@'))}] redirects: [(redir op:<Id.Redir_GreatAnd '>&'> loc:(redir_loc.Fd fd:1) arg:{<2>})] do_fork: T ) (command.ControlFlow token:<Id.ControlFlow_Exit exit> arg_word:{<1>}) ] ) ) (command.WhileUntil keyword: <Id.KW_While while> cond: (condition.Shell commands: [ (C {<getopts>} {<d> <Id.Lit_Colon ':'> <hi> <Id.Lit_Colon ':'> <t> <Id.Lit_Colon ':'> <T>} {<opt>} ) ] ) body: (command.DoGroup children: [ (command.Case to_match: {($ Id.VSub_DollarName '$opt')} arms: [ (case_arm pat_list: [{<d>}] action: [ (command.Sentence child: (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:opt_duration) op: assign_op.Equal rhs: {<1>} spids: [317] ) ] ) terminator: <Id.Op_Semi _> ) (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:duration) op: assign_op.Equal rhs: {($ Id.VSub_DollarName '$OPTARG')} spids: [321] ) ] ) ] spids: [314 315 324 -1] ) (case_arm pat_list: [{<i>}] action: [ (command.Sentence child: (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:opt_interval) op: assign_op.Equal rhs: {<1>} spids: [330] ) ] ) terminator: <Id.Op_Semi _> ) (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:interval) op: assign_op.Equal rhs: {($ Id.VSub_DollarName '$OPTARG')} spids: [334] ) ] ) ] spids: [327 328 337 -1] ) (case_arm pat_list: [{<t>}] action: [ (command.Sentence child: (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:opt_tail) op: assign_op.Equal rhs: {<1>} spids: [343] ) ] ) terminator: <Id.Op_Semi _> ) (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:tnum) op: assign_op.Equal rhs: {($ Id.VSub_DollarName '$OPTARG')} spids: [347] ) ] ) ] spids: [340 341 350 -1] ) (case_arm pat_list: [{<T>}] action: [ (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:opt_timestamp) op: assign_op.Equal rhs: {<1>} spids: [356] ) ] ) ] spids: [353 354 359 -1] ) (case_arm pat_list: [{<h>} {<Id.Lit_QMark '?'>}] action: [(C {<usage>})] spids: [362 365 369 -1] ) ] ) ] ) ) (C {<shift>} { (word_part.ArithSub anode: (arith_expr.Binary op_id: Id.Arith_Minus left: {($ Id.VSub_DollarName '$OPTIND')} right: {<Id.Lit_Digits 1>} ) ) } ) (command.AndOr ops: [Id.Op_DAmp] children: [ (command.DParen child: (arith_expr.Binary op_id: Id.Arith_DEqual left: {($ Id.VSub_Pound '$#')} right: {<Id.Lit_Digits 0>} ) ) (C {<usage>}) ] ) (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:funcs) op: assign_op.Equal rhs: {(DQ ($ Id.VSub_Number '$1'))} spids: [408] ) ] ) (command.If arms: [ (if_arm cond: (condition.Shell commands: [ (command.Sentence child: (command.DParen child:<Id.Lit_ArithVarLike opt_tail>) terminator: <Id.Op_Semi _> ) ] ) action: [ (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:tcmd) op: assign_op.Equal rhs: {(DQ <'tail -'> ($ Id.VSub_DollarName '$tnum'))} spids: [426] ) ] ) (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:ttext) op: assign_op.Equal rhs: {(DQ <' Top '> ($ Id.VSub_DollarName '$tnum') <' only.'>)} spids: [433] ) ] ) ] spids: [413 423] ) ] ) (command.If arms: [ (if_arm cond: (condition.Shell commands: [ (command.Sentence child: (command.DParen child:<Id.Lit_ArithVarLike opt_duration>) terminator: <Id.Op_Semi _> ) ] ) action: [ (C {<echo>} { (DQ <'Tracing '> (word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\"'>) ($ Id.VSub_DollarName '$funcs') (word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\"'>) <' for '> ($ Id.VSub_DollarName '$duration') <' seconds.'> ($ Id.VSub_DollarName '$ttext') <..> ) } ) ] spids: [442 452] ) ] else_action: [ (C {<echo>} { (DQ <'Tracing '> (word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\"'>) ($ Id.VSub_DollarName '$funcs') (word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\"'>) <.> ($ Id.VSub_DollarName '$ttext') <'.. Ctrl-C to end.'> ) } ) ] ) (command.AndOr ops: [Id.Op_DAmp] children: [ (command.DParen child: (arith_expr.Binary op_id: Id.Arith_DAmp left: <Id.Lit_ArithVarLike opt_duration> right: (arith_expr.Unary op_id:Id.Arith_Bang child:<Id.Lit_ArithVarLike opt_interval>) ) ) (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:interval) op: assign_op.Equal rhs: {($ Id.VSub_DollarName '$duration')} spids: [500] ) ] ) ] ) (command.AndOr ops: [Id.Op_DPipe] children: [ (C {<cd>} {($ Id.VSub_DollarName '$tracing')}) (C {<die>} { (DQ <'ERROR: accessing tracing. Root user? Kernel has FTRACE?\n'> <' debugfs mounted? (mount -t debugfs debugfs /sys/kernel/debug)'> ) } ) ] ) (C {<sysctl>} {<-q>} {<kernel.ftrace_enabled> <Id.Lit_Equals '='> <1>}) (command.AndOr ops: [Id.Op_DPipe] children: [ (command.Simple words: [{<echo>} {(DQ ($ Id.VSub_DollarName '$funcs'))}] redirects: [(redir op:<Id.Redir_Great '>'> loc:(redir_loc.Fd fd:1) arg:{<set_ftrace_filter>})] do_fork: T ) (C {<die>} { (DQ <'ERROR: enabling '> (word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\"'>) ($ Id.VSub_DollarName '$funcs') (word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\"'>) <'. Exiting.'> ) } ) ] ) (C {<warn>} {(DQ <'echo nop > current_tracer'>)}) (command.If arms: [ (if_arm cond: (condition.Shell commands: [ (command.Sentence child: (command.Pipeline children: [ (command.Simple words: [{<echo>} {<1>}] redirects: [ (redir op: <Id.Redir_Great '>'> loc: (redir_loc.Fd fd:1) arg: {<function_profile_enabled>} ) ] do_fork: T ) ] negated: T ) terminator: <Id.Op_Semi _> ) ] ) action: [ (command.Simple words: [{<echo>}] redirects: [ (redir op: <Id.Redir_Great '>'> loc: (redir_loc.Fd fd:1) arg: {<set_ftrace_filter>} ) ] do_fork: T ) (C {<die>} {(DQ <'ERROR: enabling function profiling.'>)} {(DQ <'Have CONFIG_FUNCTION_PROFILER? Exiting.'>)} ) ] spids: [563 576] ) ] ) (command.CommandList children: [ (command.Sentence child: (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:quit) op: assign_op.Equal rhs: {<0>} spids: [603] ) ] ) terminator: <Id.Op_Semi _> ) (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:secs) op: assign_op.Equal rhs: {<0>} spids: [607] ) ] ) ] ) (command.WhileUntil keyword: <Id.KW_While while> cond: (condition.Shell commands: [ (command.Sentence child: (command.DParen child: (arith_expr.Binary op_id: Id.Arith_DAmp left: (arith_expr.Unary op_id:Id.Arith_Bang child:<Id.Lit_ArithVarLike quit>) right: (arith_expr.Binary op_id: Id.Arith_DPipe left: (arith_expr.Unary op_id: Id.Arith_Bang child: <Id.Lit_ArithVarLike opt_duration> ) right: (arith_expr.Binary op_id: Id.Arith_Less left: <Id.Lit_ArithVarLike secs> right: <Id.Lit_ArithVarLike duration> ) ) ) ) terminator: <Id.Op_Semi _> ) ] ) body: (command.DoGroup children: [ (command.DParen child: (arith_expr.BinaryAssign op_id: Id.Arith_PlusEqual left: <Id.Lit_ArithVarLike secs> right: <Id.Lit_ArithVarLike interval> ) ) (command.Simple words: [{<echo>} {<0>}] redirects: [ (redir op: <Id.Redir_Great '>'> loc: (redir_loc.Fd fd:1) arg: {<function_profile_enabled>} ) ] do_fork: T ) (command.Simple words: [{<echo>} {<1>}] redirects: [ (redir op: <Id.Redir_Great '>'> loc: (redir_loc.Fd fd:1) arg: {<function_profile_enabled>} ) ] do_fork: T ) (C {<sleep>} {($ Id.VSub_DollarName '$interval')}) (C {<echo>}) (command.AndOr ops: [Id.Op_DAmp] children: [(command.DParen child:<Id.Lit_ArithVarLike opt_timestamp>) (C {<date>})] ) (C {<printf>} {(DQ <'%-30s %8s'> <Id.Lit_BadBackslash '\\'> <n>)} {(DQ <FUNC>)} {(DQ <COUNT>)}) (command.Pipeline children: [ (C {<cat>} {<'trace_stat/function'> <Id.Lit_Star '*'>}) (C {<awk>} { (SQ <'\n'> <'\t# skip headers by matching on the numeric hit column\n'> <'\t$2 ~ /[0-9]/ { a[$1] += $2 }\n'> <'\tEND {\n'> <'\t\tfor (k in a) {\n'> <'\t\t\tprintf "%-30s %8d\\n", k, a[k]\n'> <'\t\t}\n'> <'\t}'> ) } ) (C {<sort>} {<-n>} {<-k2>}) (C {($ Id.VSub_DollarName '$tcmd')}) ] negated: F ) ] ) ) (command.Simple words: [{<echo>}] redirects: [(redir op:<Id.Redir_Great '2>'> loc:(redir_loc.Fd fd:2) arg:{<'/dev/null'>})] do_fork: T ) (command.Simple words: [{<echo>} {(DQ <'Ending tracing...'>)}] redirects: [(redir op:<Id.Redir_Great '2>'> loc:(redir_loc.Fd fd:2) arg:{<'/dev/null'>})] do_fork: T ) (C {<warn>} {(DQ <'echo 0 > function_profile_enabled'>)}) (C {<warn>} {(DQ <'echo > set_ftrace_filter'>)}) ] )