[PATCH 3/8] tools lib traceevent: If %s is a pointer, check printk formats

From: Steven Rostedt
Date: Fri Nov 01 2013 - 17:56:02 EST


From: "Steven Rostedt (Red Hat)" <rostedt@xxxxxxxxxxx>

If the format string of TP_printk() contains a %s, and the argument
is not a string, check if the argument is a pointer that might match
the printk_formats that were stored.

Signed-off-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
---
tools/lib/traceevent/event-parse.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 856b791..013c8d3 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -3505,6 +3505,7 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
struct pevent *pevent = event->pevent;
struct print_flag_sym *flag;
struct format_field *field;
+ struct printk_map *printk;
unsigned long long val, fval;
unsigned long addr;
char *str;
@@ -3540,7 +3541,12 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
if (!(field->flags & FIELD_IS_ARRAY) &&
field->size == pevent->long_size) {
addr = *(unsigned long *)(data + field->offset);
- trace_seq_printf(s, "%lx", addr);
+ /* Check if it matches a print format */
+ printk = find_printk(pevent, addr);
+ if (printk)
+ trace_seq_puts(s, printk->printk);
+ else
+ trace_seq_printf(s, "%lx", addr);
break;
}
str = malloc(len + 1);
--
1.8.4.rc3


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