62 lines
1.1 KiB
C
Executable file
62 lines
1.1 KiB
C
Executable file
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright (c) 2020 MediaTek Inc.
|
|
*/
|
|
|
|
#include <linux/sched.h>
|
|
#include <linux/string.h>
|
|
#include <linux/kernel.h>
|
|
#include "apusys_trace.h"
|
|
|
|
static noinline int tracing_mark_write(const char *buf)
|
|
{
|
|
TRACE_PUTS(buf);
|
|
return 0;
|
|
}
|
|
|
|
void trace_tag_begin(const char *format, ...)
|
|
{
|
|
char buf[TRACE_LEN];
|
|
|
|
int len = snprintf(buf, sizeof(buf),
|
|
"B|%d|%s", task_pid_nr(current), format);
|
|
|
|
if (len >= TRACE_LEN)
|
|
len = TRACE_LEN - 1;
|
|
|
|
tracing_mark_write(buf);
|
|
}
|
|
EXPORT_SYMBOL(trace_tag_begin);
|
|
|
|
void trace_tag_end(void)
|
|
{
|
|
char buf[TRACE_LEN];
|
|
|
|
int len = snprintf(buf, sizeof(buf), "E\n");
|
|
|
|
if (len >= TRACE_LEN)
|
|
len = TRACE_LEN - 1;
|
|
|
|
tracing_mark_write(buf);
|
|
}
|
|
EXPORT_SYMBOL(trace_tag_end);
|
|
|
|
void trace_async_tag(bool isBegin, const char *format, ...)
|
|
{
|
|
char buf[TRACE_LEN];
|
|
int len = 0;
|
|
|
|
if (isBegin)
|
|
len = snprintf(buf, sizeof(buf),
|
|
"S|%d|%s", task_pid_nr(current), format);
|
|
else
|
|
len = snprintf(buf, sizeof(buf),
|
|
"F|%d|%s", task_pid_nr(current), format);
|
|
|
|
if (len >= TRACE_LEN)
|
|
len = TRACE_LEN - 1;
|
|
|
|
tracing_mark_write(buf);
|
|
}
|
|
EXPORT_SYMBOL(trace_async_tag);
|