From 52a11f354970e7301e1d1a029b87535be45abec9 Mon Sep 17 00:00:00 2001 From: Lai Jiangshan Date: Wed, 25 Nov 2009 16:33:15 +0800 Subject: [PATCH] trace_kprobes: Don't output zero offset "symbol_name+0" is not so friendly. It makes the output longer. Signed-off-by: Lai Jiangshan Acked-by: Masami Hiramatsu Cc: Steven Rostedt Cc: Frederic Weisbecker LKML-Reference: <4B0CEBCB.7080309@cn.fujitsu.com> Signed-off-by: Ingo Molnar --- kernel/trace/trace_kprobe.c | 12 +++++++++--- 1 file 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); -- 2.20.1