| Niranjan Yadla | cee816e | 2018-04-19 12:03:47 -0700 | [diff] [blame] | 1 | /******************************************************************************* |
| 2 | * Copyright (C) 2018 Cadence Design Systems, Inc. |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining |
| 5 | * a copy of this software and associated documentation files (the |
| 6 | * "Software"), to use this Software with Cadence processor cores only and |
| 7 | * not with any other processors and platforms, subject to |
| 8 | * the following conditions: |
| 9 | * |
| 10 | * The above copyright notice and this permission notice shall be included |
| 11 | * in all copies or substantial portions of the Software. |
| 12 | * |
| 13 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 14 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 15 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| 16 | * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
| 17 | * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| 18 | * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| 19 | * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 20 | |
| 21 | ******************************************************************************/ |
| 22 | |
| 23 | #include "xf.h" |
| 24 | #include <sys/time.h> |
| 25 | |
| 26 | #if XF_TRACE |
| 27 | /******************************************************************************* |
| 28 | * Local data definitions |
| 29 | ******************************************************************************/ |
| 30 | |
| 31 | /* ...tracing lock */ |
| 32 | static pthread_mutex_t xf_trace_mutex; |
| 33 | |
| 34 | /******************************************************************************* |
| 35 | * Tracing facility |
| 36 | ******************************************************************************/ |
| 37 | |
| 38 | /* ...timestamp function */ |
| 39 | static u32 xf_timenow(void) |
| 40 | { |
| 41 | struct timeval tv; |
| 42 | |
| 43 | /* ...get current time value */ |
| 44 | gettimeofday(&tv, NULL); |
| 45 | |
| 46 | /* ...wrap over every 100 seconds */ |
| 47 | return (u32)((tv.tv_sec % 100) * 1000000 + tv.tv_usec); |
| 48 | } |
| 49 | |
| 50 | /* ...tracing initialization */ |
| 51 | void xf_trace_init(const char *banner) |
| 52 | { |
| 53 | /* ...initialize tracing lock */ |
| 54 | pthread_mutex_init(&xf_trace_mutex, NULL); |
| 55 | |
| 56 | /* ...output banner */ |
| 57 | xf_trace(banner); |
| 58 | } |
| 59 | |
| 60 | /* ...tracing primitive */ |
| 61 | int xf_trace(const char *format, ...) |
| 62 | { |
| 63 | va_list args; |
| 64 | static char buf[256]; |
| 65 | char *b = buf; |
| 66 | |
| 67 | /* ...get global tracing lock */ |
| 68 | pthread_mutex_lock(&xf_trace_mutex); |
| 69 | |
| 70 | /* ...output timestamp */ |
| 71 | b += sprintf(b, "[%08u] ", xf_timenow()); |
| 72 | |
| 73 | /* ...output format string */ |
| 74 | va_start(args, format); |
| 75 | b += vsprintf(b, format, args); |
| 76 | va_end(args); |
| 77 | |
| 78 | /* ...put terminator */ |
| 79 | *b = '\0'; |
| 80 | |
| 81 | /* ...output prepared string */ |
| 82 | __xf_puts(buf); |
| 83 | |
| 84 | /* ...release tracing lock */ |
| 85 | pthread_mutex_unlock(&xf_trace_mutex); |
| 86 | |
| 87 | return 0; |
| 88 | } |
| 89 | |
| 90 | #endif /* XF_TRACE */ |