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para-callgraph.stp - Callgraph Tracing with Arguments
Print a timed per-thread microsecond-timed callgraph, complete with
function parameters and return values. The first parameter names the
function probe points to trace. The optional second parameter names
the probe points for trigger functions, which acts to enable tracing
for only those functions that occur while the current thread is
nested within the trigger.
$ stap para-callgraph.stp 'process("/bin/ls").function("*")' \
'process("/bin/ls").function("main")' -c "/bin/ls > /dev/null"
0 ls(24779):->main argc=0x1 argv=0x7ffe16646868
4 ls(24779): ->set_program_name argv0=0x7ffe166486e6
8 ls(24779): <-set_program_name
33 ls(24779): ->atexit
35 ls(24779): <-atexit
42 ls(24779): ->human_options spec=0x0 opts=0x61d100 block_size=0x61d0f8
44 ls(24779): <-human_options return=0x0
46 ls(24779): ->clone_quoting_options o=0x0
49 ls(24779): ->xmemdup p=0x61d2e0 s=0x38
51 ls(24779): ->xmalloc n=0x38
54 ls(24779): <-xmalloc return=0x1a15050
57 ls(24779): <-xmemdup return=0x1a15050
58 ls(24779): <-clone_quoting_options return=0x1a15050
60 ls(24779): ->get_quoting_style o=0x1a15050
62 ls(24779): <-get_quoting_style return=0x0
63 ls(24779): ->clone_quoting_options o=0x0
65 ls(24779): ->xmemdup p=0x61d2e0 s=0x38
66 ls(24779): ->xmalloc n=0x38
68 ls(24779): <-xmalloc return=0x1a15090
69 ls(24779): <-xmemdup return=0x1a15090
70 ls(24779): <-clone_quoting_options return=0x1a15090
72 ls(24779): ->set_char_quoting o=0x1a15090 c=0x3a i=0x1
74 ls(24779): <-set_char_quoting return=0x0
76 ls(24779): ->xmalloc n=0x4b00
79 ls(24779): <-xmalloc return=0x1a150d0
80 ls(24779): ->clear_files
82 ls(24779): <-clear_files
84 ls(24779): ->queue_directory name=0x414546 realname=0x0 command_line_arg=0x1
86 ls(24779): ->xmalloc n=0x20
88 ls(24779): <-xmalloc return=0x1a19be0
89 ls(24779): ->xstrdup string=0x414546
92 ls(24779): ->xmemdup p=0x414546 s=0x2
93 ls(24779): ->xmalloc n=0x2
95 ls(24779): <-xmalloc return=0x1a19c10
96 ls(24779): <-xmemdup return=0x1a19c10
97 ls(24779): <-xstrdup return=0x1a19c10
98 ls(24779): <-queue_directory
104 ls(24779): ->clear_files
106 ls(24779): <-clear_files
1183 ls(24779): ->process_signals
1186 ls(24779): <-process_signals
[...]
5294 ls(24779): ->print_file_name_and_frills f=0x1a15fd0 start_col=0x0
5296 ls(24779): ->set_normal_color
5298 ls(24779): <-set_normal_color
5299 ls(24779): ->print_name_with_quoting f=0x1a15fd0 symlink_target=0x0 stack=0x0 start_col=0x0
5301 ls(24779): ->quote_name out=0x2b8871d2c620 name=0x1a21ef0 options=0x1a15050 width=0x0
5304 ls(24779): ->quotearg_buffer buffer=0x7ffe16644000 buffersize=0x2000 arg=0x1a21ef0 argsize=0xffffffffffffffff o=0x1a15050
5308 ls(24779): ->quotearg_buffer_restyled buffer=0x7ffe16644000 buffersize=0x2000 arg=0x1a21ef0 argsize=0xffffffffffffffff quoting_style=0x0 flags=0x0 quote_these_too=0x1a15058 left_quote=0x0 right_quote=0x0
5310 ls(24779): <-quotearg_buffer_restyled return=0xe
5311 ls(24779): <-quotearg_buffer return=0xe
5312 ls(24779): <-quote_name return=0xe
5313 ls(24779): ->process_signals
5315 ls(24779): <-process_signals
5316 ls(24779): <-print_name_with_quoting return=0xe
5317 ls(24779): <-print_file_name_and_frills return=0xe
5318 ls(24779): <-print_current_files
5321 ls(24779): ->close_stdout
5323 ls(24779): ->close_stream stream=0x2b8871d2c620
5326 ls(24779): ->rpl_fclose fp=0x2b8871d2c620
5329 ls(24779): ->rpl_fflush stream=0x2b8871d2c620
5332 ls(24779): <-rpl_fflush return=0x0
5341 ls(24779): <-rpl_fclose return=0x0
5342 ls(24779): <-close_stream return=0x0
5343 ls(24779): ->close_stream stream=0x2b8871d2c540
5345 ls(24779): ->rpl_fclose fp=0x2b8871d2c540
5347 ls(24779): ->rpl_fflush stream=0x2b8871d2c540
5349 ls(24779): <-rpl_fflush return=0x0
5350 ls(24779): <-rpl_fclose return=0x0
5352 ls(24779): <-close_stream return=0x0
5353 ls(24779): <-close_stdout
5355 ls(24779): ->__do_global_dtors_aux
5357 ls(24779): ->deregister_tm_clones
5359 ls(24779): <-deregister_tm_clones
5360 ls(24779): <-__do_global_dtors_aux
5362 ls(24779): ->_fini
5363 ls(24779): <-_fini