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