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tracing/fastboot: change the printing of boot tracer according to bootgraph.pl

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Change the boot tracer printing to make it parsable for
the scripts/bootgraph.pl script.

We have now to output two lines for each initcall, according to the
printk in do_one_initcall() in init/main.c
We need now the call's time and the return's time.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Frederic Weisbecker
2008-10-02 12:59:20 +02:00
committed by Ingo Molnar
parent 77ae11f63b
commit cb5ab74204
3 changed files with 26 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files
kernel/trace/trace_boot.c
+15 -7
View File
@@ -52,16 +52,24 @@ static enum print_line_t initcall_print_line(struct trace_iterator *iter)
struct trace_boot *field = (struct trace_boot *)entry;
struct boot_trace *it = &field->initcall;
struct trace_seq *s = &iter->seq;
struct timespec calltime = ktime_to_timespec(it->calltime);
struct timespec rettime = ktime_to_timespec(it->rettime);
if (entry->type == TRACE_BOOT) {
ret = trace_seq_printf(s, "%pF called from %i "
"returned %d after %lld msecs\n",
it->func, it->caller, it->result,
it->duration);
if (ret)
return TRACE_TYPE_HANDLED;
else
ret = trace_seq_printf(s, "[%5ld.%06ld] calling %pF @ %i\n",
calltime.tv_sec,
calltime.tv_nsec,
it->func, it->caller);
if (!ret)
return TRACE_TYPE_PARTIAL_LINE;
ret = trace_seq_printf(s, "[%5ld.%06ld] initcall %pF "
"returned %d after %lld msecs\n",
rettime.tv_sec,
rettime.tv_nsec,
it->func, it->result, it->duration);
if (!ret)
return TRACE_TYPE_PARTIAL_LINE;
return TRACE_TYPE_HANDLED;
}
return TRACE_TYPE_UNHANDLED;
}