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mmiotrace: handle TRACE_PRINT entries

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Also make trace_seq_print_cont() non-static, and add a newline if the
seq buffer can't hold all data.

Signed-off-by: Pekka Paalanen <pq@iki.fi>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Pekka Paalanen
2008-09-16 22:02:27 +03:00
committed by Ingo Molnar
parent 9e57fb35d7
commit fc5e27ae4b
3 changed files with 53 additions and 20 deletions
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23
kernel/trace/trace_mmiotrace.c
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@ -245,6 +245,27 @@ static int mmio_print_map(struct trace_iterator *iter)
return 0;
}
static int mmio_print_mark(struct trace_iterator *iter)
{
struct trace_entry *entry = iter->ent;
const char *msg = entry->field.print.buf;
struct trace_seq *s = &iter->seq;
unsigned long long t = ns2usecs(entry->field.t);
unsigned long usec_rem = do_div(t, 1000000ULL);
unsigned secs = (unsigned long)t;
int ret;
/* The trailing newline must be in the message. */
ret = trace_seq_printf(s, "MARK %lu.%06lu %s", secs, usec_rem, msg);
if (!ret)
return 0;
if (entry->field.flags & TRACE_FLAG_CONT)
trace_seq_print_cont(s, iter);
return 1;
}
/* return 0 to abort printing without consuming current entry in pipe mode */
static int mmio_print_line(struct trace_iterator *iter)
{
@ -253,6 +274,8 @@ static int mmio_print_line(struct trace_iterator *iter)
return mmio_print_rw(iter);
case TRACE_MMIO_MAP:
return mmio_print_map(iter);
case TRACE_PRINT:
return mmio_print_mark(iter);
default:
return 1; /* ignore unknown entries */
}