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