From 6e9f23d1619f7badaf9090dac09e86a22d6061d8 Mon Sep 17 00:00:00 2001 From: Masami Hiramatsu Date: Thu, 10 Sep 2009 19:53:45 -0400 Subject: tracing/kprobes: Show event name in trace output 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 Cc: Jim Keniston Cc: Ananth N Mavinakayanahalli Cc: Andi Kleen Cc: Christoph Hellwig Cc: Frank Ch. Eigler Cc: Frederic Weisbecker Cc: H. Peter Anvin Cc: Ingo Molnar Cc: Jason Baron Cc: K.Prasad Cc: Lai Jiangshan Cc: Li Zefan Cc: Peter Zijlstra Cc: Srikar Dronamraju Cc: Steven Rostedt Cc: Tom Zanussi LKML-Reference: <20090910235345.22412.76527.stgit@dhcp-100-2-132.bos.redhat.com> Signed-off-by: Frederic Weisbecker --- kernel/trace/trace_kprobe.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) (limited to 'kernel/trace') diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c index 44dad1aa95d3..1746afeaabf9 100644 --- a/kernel/trace/trace_kprobe.c +++ b/kernel/trace/trace_kprobe.c @@ -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 -- cgit v1.2.3