xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ftrace: sched tracer, trace full rbtree

Browse Source 
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 21:20:52 +02:00
committed by Thomas Gleixner
parent 4c1f4d4f01
commit 4e65551905
5 changed files with 108 additions and 52 deletions
Download Patch File Download Diff File Expand all files Collapse all files

55
kernel/trace/trace.c
View File

@@ -66,7 +66,18 @@ static struct tracer *current_trace __read_mostly;
static int max_tracer_type_len;
static DEFINE_MUTEX(trace_types_lock);
static DECLARE_WAIT_QUEUE_HEAD (trace_wait);
static DECLARE_WAIT_QUEUE_HEAD(trace_wait);
unsigned long trace_flags = TRACE_ITER_PRINT_PARENT;
/*
* FIXME: where should this be called?
*/
void trace_wake_up(void)
{
if (!(trace_flags & TRACE_ITER_BLOCK))
wake_up(&trace_wait);
}
#define ENTRIES_PER_PAGE (PAGE_SIZE / sizeof(struct trace_entry))
@@ -103,18 +114,6 @@ enum trace_flag_type {
TRACE_FLAG_SOFTIRQ = 0x08,
};
enum trace_iterator_flags {
TRACE_ITER_PRINT_PARENT = 0x01,
TRACE_ITER_SYM_OFFSET = 0x02,
TRACE_ITER_SYM_ADDR = 0x04,
TRACE_ITER_VERBOSE = 0x08,
TRACE_ITER_RAW = 0x10,
TRACE_ITER_HEX = 0x20,
TRACE_ITER_BIN = 0x40,
TRACE_ITER_BLOCK = 0x80,
TRACE_ITER_STACKTRACE = 0x100,
};
#define TRACE_ITER_SYM_MASK \
(TRACE_ITER_PRINT_PARENT|TRACE_ITER_SYM_OFFSET|TRACE_ITER_SYM_ADDR)
@@ -132,8 +131,6 @@ static const char *trace_options[] = {
NULL
};
static unsigned trace_flags = TRACE_ITER_PRINT_PARENT;
static DEFINE_SPINLOCK(ftrace_max_lock);
/*
@@ -660,9 +657,6 @@ trace_function(struct trace_array *tr, struct trace_array_cpu *data,
entry->fn.ip = ip;
entry->fn.parent_ip = parent_ip;
spin_unlock_irqrestore(&data->lock, irq_flags);
if (!(trace_flags & TRACE_ITER_BLOCK))
wake_up(&trace_wait);
}
void
@@ -673,10 +667,14 @@ ftrace(struct trace_array *tr, struct trace_array_cpu *data,
trace_function(tr, data, ip, parent_ip, flags);
}
#ifdef CONFIG_CONTEXT_SWITCH_TRACER
void
trace_special(struct trace_array *tr, struct trace_array_cpu *data,
unsigned long arg1, unsigned long arg2, unsigned long arg3)
__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;
@@ -688,11 +686,10 @@ trace_special(struct trace_array *tr, struct trace_array_cpu *data,
entry->special.arg2 = arg2;
entry->special.arg3 = arg3;
spin_unlock_irqrestore(&data->lock, irq_flags);
if (!(trace_flags & TRACE_ITER_BLOCK))
wake_up(&trace_wait);
}
#endif
void __trace_stack(struct trace_array *tr,
struct trace_array_cpu *data,
unsigned long flags,
@@ -739,9 +736,6 @@ tracing_sched_switch_trace(struct trace_array *tr,
entry->ctx.next_prio = next->prio;
__trace_stack(tr, data, flags, 4);
spin_unlock_irqrestore(&data->lock, irq_flags);
if (!(trace_flags & TRACE_ITER_BLOCK))
wake_up(&trace_wait);
}
void
@@ -765,9 +759,6 @@ tracing_sched_wakeup_trace(struct trace_array *tr,
entry->ctx.next_prio = wakee->prio;
__trace_stack(tr, data, flags, 5);
spin_unlock_irqrestore(&data->lock, irq_flags);
if (!(trace_flags & TRACE_ITER_BLOCK))
wake_up(&trace_wait);
}
#ifdef CONFIG_FTRACE
@@ -1258,7 +1249,7 @@ print_lat_fmt(struct trace_iterator *iter, unsigned int trace_idx, int cpu)
comm);
break;
case TRACE_SPECIAL:
trace_seq_printf(s, " %lx %lx %lx\n",
trace_seq_printf(s, " %ld %ld %ld\n",
entry->special.arg1,
entry->special.arg2,
entry->special.arg3);
@@ -1344,7 +1335,7 @@ static int print_trace_fmt(struct trace_iterator *iter)
return 0;
break;
case TRACE_SPECIAL:
ret = trace_seq_printf(s, " %lx %lx %lx\n",
ret = trace_seq_printf(s, " %ld %ld %ld\n",
entry->special.arg1,
entry->special.arg2,
entry->special.arg3);
@@ -1409,7 +1400,7 @@ static int print_raw_fmt(struct trace_iterator *iter)
break;
case TRACE_SPECIAL:
case TRACE_STACK:
ret = trace_seq_printf(s, " %lx %lx %lx\n",
ret = trace_seq_printf(s, " %ld %ld %ld\n",
entry->special.arg1,
entry->special.arg2,
entry->special.arg3);