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/*******************************************************************************
* Copyright (C) 2018 Cadence Design Systems, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to use this Software with Cadence processor cores only and
* not with any other processors and platforms, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
******************************************************************************/
#include "xf.h"
#include <sys/time.h>
#if XF_TRACE
/*******************************************************************************
* Local data definitions
******************************************************************************/
/* ...tracing lock */
static pthread_mutex_t xf_trace_mutex;
/*******************************************************************************
* Tracing facility
******************************************************************************/
/* ...timestamp function */
static u32 xf_timenow(void)
{
struct timeval tv;
/* ...get current time value */
gettimeofday(&tv, NULL);
/* ...wrap over every 100 seconds */
return (u32)((tv.tv_sec % 100) * 1000000 + tv.tv_usec);
}
/* ...tracing initialization */
void xf_trace_init(const char *banner)
{
/* ...initialize tracing lock */
pthread_mutex_init(&xf_trace_mutex, NULL);
/* ...output banner */
xf_trace(banner);
}
/* ...tracing primitive */
int xf_trace(const char *format, ...)
{
va_list args;
static char buf[256];
char *b = buf;
/* ...get global tracing lock */
pthread_mutex_lock(&xf_trace_mutex);
/* ...output timestamp */
b += sprintf(b, "[%08u] ", xf_timenow());
/* ...output format string */
va_start(args, format);
b += vsprintf(b, format, args);
va_end(args);
/* ...put terminator */
*b = '\0';
/* ...output prepared string */
__xf_puts(buf);
/* ...release tracing lock */
pthread_mutex_unlock(&xf_trace_mutex);
return 0;
}
#endif /* XF_TRACE */
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