65 lines
1.2 KiB
C
65 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright (c) 2018 MediaTek Inc.
|
|
*/
|
|
|
|
#include "adaptor-trace.h"
|
|
|
|
uint adaptor_trace_en;
|
|
module_param(adaptor_trace_en, uint, 0644);
|
|
MODULE_PARM_DESC(adaptor_trace_en, "adaptor_trace_en");
|
|
|
|
static noinline int tracing_mark_write(const char *buf)
|
|
{
|
|
trace_puts(buf);
|
|
return 0;
|
|
}
|
|
|
|
void __adaptor_systrace_b(const char *fmt, ...)
|
|
{
|
|
char log[BUF_LENGTH];
|
|
va_list args;
|
|
int len;
|
|
char buf2[BUF_LENGTH];
|
|
|
|
memset(log, ' ', sizeof(log));
|
|
va_start(args, fmt);
|
|
len = vsnprintf(log, sizeof(log), fmt, args);
|
|
va_end(args);
|
|
|
|
if (unlikely(len < 0))
|
|
return;
|
|
else if (unlikely(len == BUF_LENGTH))
|
|
log[BUF_LENGTH - 1] = '\0';
|
|
|
|
len = snprintf(buf2, sizeof(buf2), "B|%d|%s\n", task_tgid_nr(current), log);
|
|
|
|
if (unlikely(len < 0))
|
|
return;
|
|
else if (unlikely(len == BUF_LENGTH))
|
|
buf2[BUF_LENGTH - 1] = '\0';
|
|
|
|
tracing_mark_write(buf2);
|
|
}
|
|
|
|
void __adaptor_systrace_e(void)
|
|
{
|
|
char buf2[BUF_LENGTH];
|
|
int len;
|
|
|
|
len = snprintf(buf2, sizeof(buf2), "E|%d\n", task_tgid_nr(current));
|
|
|
|
if (unlikely(len < 0))
|
|
return;
|
|
else if (unlikely(len == BUF_LENGTH))
|
|
buf2[BUF_LENGTH - 1] = '\0';
|
|
|
|
tracing_mark_write(buf2);
|
|
}
|
|
|
|
bool adaptor_trace_enabled(void)
|
|
{
|
|
return adaptor_trace_en;
|
|
}
|
|
|
|
|