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| author | Lai Jiangshan <laijs@cn.fujitsu.com> | 2009-11-25 16:33:15 +0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-11-27 06:43:05 +0100 |
| commit | 52a11f354970e7301e1d1a029b87535be45abec9 (patch) | |
| tree | 266b82496fd457ebaba261b9f3188edcec6e5ae1 | |
| parent | 3d9b2e1ddf42dd3df38af7794fa5e39cce760f3b (diff) | |
| download | linux-52a11f354970e7301e1d1a029b87535be45abec9.tar.bz2 | |
trace_kprobes: Don't output zero offset
"symbol_name+0" is not so friendly.
It makes the output longer.
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Acked-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <4B0CEBCB.7080309@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | kernel/trace/trace_kprobe.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c index 96e1944229be..72d0c65c8676 100644 --- a/kernel/trace/trace_kprobe.c +++ b/kernel/trace/trace_kprobe.c @@ -243,7 +243,11 @@ static int probe_arg_string(char *buf, size_t n, struct fetch_func *ff) ret = snprintf(buf, n, "@0x%p", ff->data); else if (ff->func == fetch_symbol) { struct symbol_cache *sc = ff->data; - ret = snprintf(buf, n, "@%s%+ld", sc->symbol, sc->offset); + if (sc->offset) + ret = snprintf(buf, n, "@%s%+ld", sc->symbol, + sc->offset); + else + ret = snprintf(buf, n, "@%s", sc->symbol); } else if (ff->func == fetch_retvalue) ret = snprintf(buf, n, "$retval"); else if (ff->func == fetch_stack_address) @@ -762,10 +766,12 @@ static int probes_seq_show(struct seq_file *m, void *v) seq_printf(m, "%c", probe_is_return(tp) ? 'r' : 'p'); seq_printf(m, ":%s/%s", tp->call.system, tp->call.name); - if (tp->symbol) + if (!tp->symbol) + seq_printf(m, " 0x%p", tp->rp.kp.addr); + else if (tp->rp.kp.offset) seq_printf(m, " %s+%u", probe_symbol(tp), tp->rp.kp.offset); else - seq_printf(m, " 0x%p", tp->rp.kp.addr); + seq_printf(m, " %s", probe_symbol(tp)); for (i = 0; i < tp->nr_args; i++) { ret = probe_arg_string(buf, MAX_ARGSTR_LEN, &tp->args[i].fetch); |