Files
android/drivers/misc/mediatek/apusys/util/apusys_trace.c
T
threeeye bc1d038eac REVVL 6 Pro kernel bring-up: full working tree snapshot (2026-09-12)
Squashed backup commit (no shallow-clone history issues) of
xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream
commit 9eece662e) plus all fixes applied to get everpal_defconfig building
clean against a modern (GCC 15.2.0) toolchain -- see the previous commit
message on the lineage-23.2 branch (also in this repo history is not
available here since this is a squashed snapshot; full incremental history
lives in the local DL380 checkout and the upstream GitHub remote).

Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
2026-09-12 13:36:46 +00:00

70 lines
1.5 KiB
C

/*
* Copyright (C) 2018 MediaTek Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#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);