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tracing/kprobes: Show event name in trace output

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Show event name in tracing/trace output. This also fixes kprobes events
format to comply with other tracepoint events formats.

Before patching:
<...>-1447  [001] 1038282.286875: do_sys_open+0x0/0xd6: ...
<...>-1447  [001] 1038282.286878: sys_openat+0xc/0xe <- do_sys_open: ...

After patching:
<...>-1447  [001] 1038282.286875: myprobe: (do_sys_open+0x0/0xd6) ...
<...>-1447  [001] 1038282.286878: myretprobe: (sys_openat+0xc/0xe <- do_sys_open) ...

Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Jim Keniston <jkenisto@us.ibm.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Frank Ch. Eigler <fche@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Jason Baron <jbaron@redhat.com>
Cc: K.Prasad <prasad@linux.vnet.ibm.com>
Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <20090910235345.22412.76527.stgit@dhcp-100-2-132.bos.redhat.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
This commit is contained in:
Masami Hiramatsu
2009-09-10 19:53:45 -04:00
committed by Frederic Weisbecker
parent eca0d916f6
commit 6e9f23d161
2 changed files with 19 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
kernel/trace/trace_kprobe.c
View File

@@ -902,10 +902,13 @@ print_kprobe_event(struct trace_iterator *iter, int flags)
event = ftrace_find_event(field->ent.type);
tp = container_of(event, struct trace_probe, event);
if (!trace_seq_printf(s, "%s: (", tp->call.name))
goto partial;
if (!seq_print_ip_sym(s, field->ip, flags | TRACE_ITER_SYM_OFFSET))
goto partial;
if (!trace_seq_puts(s, ":"))
if (!trace_seq_puts(s, ")"))
goto partial;
for (i = 0; i < field->nargs; i++)
@@ -934,6 +937,9 @@ print_kretprobe_event(struct trace_iterator *iter, int flags)
event = ftrace_find_event(field->ent.type);
tp = container_of(event, struct trace_probe, event);
if (!trace_seq_printf(s, "%s: (", tp->call.name))
goto partial;
if (!seq_print_ip_sym(s, field->ret_ip, flags | TRACE_ITER_SYM_OFFSET))
goto partial;
@@ -943,7 +949,7 @@ print_kretprobe_event(struct trace_iterator *iter, int flags)
if (!seq_print_ip_sym(s, field->func, flags & ~TRACE_ITER_SYM_OFFSET))
goto partial;
if (!trace_seq_puts(s, ":"))
if (!trace_seq_puts(s, ")"))
goto partial;
for (i = 0; i < field->nargs; i++)
@@ -1087,7 +1093,7 @@ static int kprobe_event_show_format(struct ftrace_event_call *call,
SHOW_FIELD(unsigned long, args[i], tp->args[i].name);
trace_seq_puts(s, "\n");
return __probe_event_show_format(s, tp, "%lx:", "ip");
return __probe_event_show_format(s, tp, "(%lx)", "REC->ip");
}
static int kretprobe_event_show_format(struct ftrace_event_call *call,
@@ -1106,8 +1112,8 @@ static int kretprobe_event_show_format(struct ftrace_event_call *call,
SHOW_FIELD(unsigned long, args[i], tp->args[i].name);
trace_seq_puts(s, "\n");
return __probe_event_show_format(s, tp, "%lx <- %lx:",
"func, ret_ip");
return __probe_event_show_format(s, tp, "(%lx <- %lx)",
"REC->func, REC->ret_ip");
}
#ifdef CONFIG_EVENT_PROFILE