diff options
author | Masami Hiramatsu <mhiramat@redhat.com> | 2010-01-05 17:46:41 -0500 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2010-01-13 04:09:11 -0500 |
commit | ec3a9039601af210fca4650d229621fe5a21df0b (patch) | |
tree | e5b3d0a926c8488e363f663e641df3d51a6acb57 /Documentation/trace/kprobetrace.txt | |
parent | 56b03f3c4d641dbdbce2e52a2969712e85b0e030 (diff) |
tracing/kprobe: Update example output in documentation
Update example output in documentation according to current
implementation.
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: systemtap <systemtap@sources.redhat.com>
Cc: DLE <dle-develop@lists.sourceforge.net>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <20100105224641.19431.34967.stgit@dhcp-100-2-132.bos.redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'Documentation/trace/kprobetrace.txt')
-rw-r--r-- | Documentation/trace/kprobetrace.txt | 33 |
1 files changed, 17 insertions, 16 deletions
diff --git a/Documentation/trace/kprobetrace.txt b/Documentation/trace/kprobetrace.txt index 47aabeebbdf6..c3eff6ff945f 100644 --- a/Documentation/trace/kprobetrace.txt +++ b/Documentation/trace/kprobetrace.txt | |||
@@ -97,23 +97,24 @@ recording return value as "myretprobe" event. | |||
97 | 97 | ||
98 | cat /sys/kernel/debug/tracing/events/kprobes/myprobe/format | 98 | cat /sys/kernel/debug/tracing/events/kprobes/myprobe/format |
99 | name: myprobe | 99 | name: myprobe |
100 | ID: 75 | 100 | ID: 780 |
101 | format: | 101 | format: |
102 | field:unsigned short common_type; offset:0; size:2; | 102 | field:unsigned short common_type; offset:0; size:2; signed:0; |
103 | field:unsigned char common_flags; offset:2; size:1; | 103 | field:unsigned char common_flags; offset:2; size:1; signed:0; |
104 | field:unsigned char common_preempt_count; offset:3; size:1; | 104 | field:unsigned char common_preempt_count; offset:3; size:1;signed:0; |
105 | field:int common_pid; offset:4; size:4; | 105 | field:int common_pid; offset:4; size:4; signed:1; |
106 | field:int common_tgid; offset:8; size:4; | 106 | field:int common_lock_depth; offset:8; size:4; signed:1; |
107 | 107 | ||
108 | field: unsigned long ip; offset:16;tsize:8; | 108 | field:unsigned long __probe_ip; offset:12; size:4; signed:0; |
109 | field: int nargs; offset:24;tsize:4; | 109 | field:int __probe_nargs; offset:16; size:4; signed:1; |
110 | field: unsigned long dfd; offset:32;tsize:8; | 110 | field:unsigned long dfd; offset:20; size:4; signed:0; |
111 | field: unsigned long filename; offset:40;tsize:8; | 111 | field:unsigned long filename; offset:24; size:4; signed:0; |
112 | field: unsigned long flags; offset:48;tsize:8; | 112 | field:unsigned long flags; offset:28; size:4; signed:0; |
113 | field: unsigned long mode; offset:56;tsize:8; | 113 | field:unsigned long mode; offset:32; size:4; signed:0; |
114 | 114 | ||
115 | print fmt: "(%lx) dfd=%lx filename=%lx flags=%lx mode=%lx", REC->ip, REC->dfd, REC->filename, REC->flags, REC->mode | 115 | |
116 | 116 | print fmt: "(%lx) dfd=%lx filename=%lx flags=%lx mode=%lx", REC->__probe_ip, | |
117 | REC->dfd, REC->filename, REC->flags, REC->mode | ||
117 | 118 | ||
118 | You can see that the event has 4 arguments as in the expressions you specified. | 119 | You can see that the event has 4 arguments as in the expressions you specified. |
119 | 120 | ||