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| author | Frederic Weisbecker <fweisbec@gmail.com> | 2008-10-02 12:59:20 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-10-14 10:39:11 +0200 |
| commit | cb5ab74204a6e2579d1119bf1348eb806526b12b (patch) | |
| tree | 4810258d42e0370ec15cf424d5e3c6487fbd1781 /init/main.c | |
| parent | ring-buffer: fix build error (diff) | |
| download | linux-cb5ab74204a6e2579d1119bf1348eb806526b12b.tar.xz linux-cb5ab74204a6e2579d1119bf1348eb806526b12b.zip | |
tracing/fastboot: change the printing of boot tracer according to bootgraph.pl
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>
Diffstat (limited to 'init/main.c')
| -rw-r--r-- | init/main.c | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/init/main.c b/init/main.c index 1e39a1eab190..61eb66159391 100644 --- a/init/main.c +++ b/init/main.c @@ -706,34 +706,32 @@ __setup("initcall_debug", initcall_debug_setup); int do_one_initcall(initcall_t fn) { int count = preempt_count(); - ktime_t t0, t1, delta; + ktime_t delta; char msgbuf[64]; - int result; struct boot_trace it; if (initcall_debug) { it.caller = task_pid_nr(current); it.func = fn; printk("calling %pF @ %i\n", fn, it.caller); - t0 = ktime_get(); + it.calltime = ktime_get(); } - result = fn(); + it.result = fn(); if (initcall_debug) { - t1 = ktime_get(); - delta = ktime_sub(t1, t0); - it.result = result; + it.rettime = ktime_get(); + delta = ktime_sub(it.rettime, it.calltime); it.duration = (unsigned long long) delta.tv64 >> 20; printk("initcall %pF returned %d after %Ld msecs\n", fn, - result, it.duration); + it.result, it.duration); trace_boot(&it); } msgbuf[0] = 0; - if (result && result != -ENODEV && initcall_debug) - sprintf(msgbuf, "error code %d ", result); + if (it.result && it.result != -ENODEV && initcall_debug) + sprintf(msgbuf, "error code %d ", it.result); if (preempt_count() != count) { strlcat(msgbuf, "preemption imbalance ", sizeof(msgbuf)); @@ -747,7 +745,7 @@ int do_one_initcall(initcall_t fn) printk("initcall %pF returned with %s\n", fn, msgbuf); } - return result; + return it.result; } |