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ftrace: special stacktrace 

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
hifive-unleashed-5.1
Ingo Molnar 2008-05-12 21:21:02 +02:00 committed by Thomas Gleixner
parent 9fe068e92f
commit a4feb8348b
1 changed files with 24 additions and 23 deletions
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47
kernel/trace/trace.c
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@ -808,29 +808,6 @@ ftrace(struct trace_array *tr, struct trace_array_cpu *data,
trace_function(tr, data, ip, parent_ip, flags);
}
void
__trace_special(void *__tr, void *__data,
unsigned long arg1, unsigned long arg2, unsigned long arg3)
{
struct trace_array_cpu *data = __data;
struct trace_array *tr = __tr;
struct trace_entry *entry;
unsigned long irq_flags;
raw_local_irq_save(irq_flags);
__raw_spin_lock(&data->lock);
entry = tracing_get_trace_entry(tr, data);
tracing_generic_entry_update(entry, 0);
entry->type = TRACE_SPECIAL;
entry->special.arg1 = arg1;
entry->special.arg2 = arg2;
entry->special.arg3 = arg3;
__raw_spin_unlock(&data->lock);
raw_local_irq_restore(irq_flags);
trace_wake_up();
}
void __trace_stack(struct trace_array *tr,
struct trace_array_cpu *data,
unsigned long flags,
@ -856,6 +833,30 @@ void __trace_stack(struct trace_array *tr,
save_stack_trace(&trace);
}
void
__trace_special(void *__tr, void *__data,
unsigned long arg1, unsigned long arg2, unsigned long arg3)
{
struct trace_array_cpu *data = __data;
struct trace_array *tr = __tr;
struct trace_entry *entry;
unsigned long irq_flags;
raw_local_irq_save(irq_flags);
__raw_spin_lock(&data->lock);
entry = tracing_get_trace_entry(tr, data);
tracing_generic_entry_update(entry, 0);
entry->type = TRACE_SPECIAL;
entry->special.arg1 = arg1;
entry->special.arg2 = arg2;
entry->special.arg3 = arg3;
__trace_stack(tr, data, irq_flags, 4);
__raw_spin_unlock(&data->lock);
raw_local_irq_restore(irq_flags);
trace_wake_up();
}
void
tracing_sched_switch_trace(struct trace_array *tr,
struct trace_array_cpu *data,