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ftrace: add raw output 

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Ingo Molnar 2008-05-12 21:20:47 +02:00 committed by Thomas Gleixner
parent 8c523a9d82
commit f9896bf309
1 changed files with 55 additions and 8 deletions
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63
kernel/trace/trace.c
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@ -153,6 +153,7 @@ enum trace_iterator_flags {
TRACE_ITER_SYM_OFFSET = 0x02,
TRACE_ITER_SYM_ADDR = 0x04,
TRACE_ITER_VERBOSE = 0x08,
TRACE_ITER_RAW = 0x10,
};
#define TRACE_ITER_SYM_MASK \
@ -164,6 +165,7 @@ static const char *trace_options[] = {
"sym-offset",
"sym-addr",
"verbose",
"raw",
NULL
};
@ -1099,7 +1101,7 @@ lat_print_timestamp(struct trace_seq *s, unsigned long long abs_usecs,
static const char state_to_char[] = TASK_STATE_TO_CHAR_STR;
static notrace void
static notrace int
print_lat_fmt(struct trace_iterator *iter, unsigned int trace_idx, int cpu)
{
struct trace_seq *s = &iter->seq;
@ -1154,10 +1156,10 @@ print_lat_fmt(struct trace_iterator *iter, unsigned int trace_idx, int cpu)
default:
trace_seq_printf(s, "Unknown type %d\n", entry->type);
}
return 1;
}
static notrace int
print_trace_fmt(struct trace_iterator *iter)
static notrace int print_trace_fmt(struct trace_iterator *iter)
{
struct trace_seq *s = &iter->seq;
unsigned long sym_flags = (trace_flags & TRACE_ITER_SYM_MASK);
@ -1222,6 +1224,43 @@ print_trace_fmt(struct trace_iterator *iter)
return 1;
}
static notrace int print_raw_fmt(struct trace_iterator *iter)
{
struct trace_seq *s = &iter->seq;
struct trace_entry *entry;
int ret;
int S;
entry = iter->ent;
ret = trace_seq_printf(s, "%d %d %llu ",
entry->pid, iter->cpu, entry->t);
if (!ret)
return 0;
switch (entry->type) {
case TRACE_FN:
ret = trace_seq_printf(s, "%x %x\n",
entry->fn.ip, entry->fn.parent_ip);
if (!ret)
return 0;
break;
case TRACE_CTX:
S = entry->ctx.prev_state < sizeof(state_to_char) ?
state_to_char[entry->ctx.prev_state] : 'X';
ret = trace_seq_printf(s, "%d %d %c %d %d\n",
entry->ctx.prev_pid,
entry->ctx.prev_prio,
S,
entry->ctx.next_pid,
entry->ctx.next_prio);
if (!ret)
return 0;
break;
}
return 1;
}
static int trace_empty(struct trace_iterator *iter)
{
struct trace_array_cpu *data;
@ -1238,6 +1277,17 @@ static int trace_empty(struct trace_iterator *iter)
return 1;
}
static int print_trace_line(struct trace_iterator *iter)
{
if (trace_flags & TRACE_ITER_RAW)
return print_raw_fmt(iter);
if (iter->iter_flags & TRACE_FILE_LAT_FMT)
return print_lat_fmt(iter, iter->idx, iter->cpu);
return print_trace_fmt(iter);
}
static int s_show(struct seq_file *m, void *v)
{
struct trace_iterator *iter = v;
@ -1259,10 +1309,7 @@ static int s_show(struct seq_file *m, void *v)
print_func_help_header(m);
}
} else {
if (iter->iter_flags & TRACE_FILE_LAT_FMT)
print_lat_fmt(iter, iter->idx, iter->cpu);
else
print_trace_fmt(iter);
print_trace_line(iter);
trace_print_seq(m, &iter->seq);
}
@ -1870,7 +1917,7 @@ tracing_read_pipe(struct file *filp, char __user *ubuf,
}
while ((entry = find_next_entry_inc(iter)) != NULL) {
ret = print_trace_fmt(iter);
ret = print_trace_line(iter);
if (!ret)
break;