tools/lib/traceevent/parse-utils.c

   1 /*
   2  * Copyright (C) 2010 Red Hat Inc, Steven Rostedt <srostedt@redhat.com>
   3  *
   4  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation;
   8  * version 2.1 of the License (not later!)
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this program; if not,  see <http://www.gnu.org/licenses>
  17  *
  18  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  19  */
  20 #include <stdio.h>
  21 #include <stdlib.h>
  22 #include <string.h>
  23 #include <stdarg.h>
  24 #include <errno.h>
  25
  26 #define __weak __attribute__((weak))
  27
  28 void __vdie(const char *fmt, va_list ap)
  29 {
  30         int ret = errno;
  31
  32         if (errno)
  33                 perror("trace-cmd");
  34         else
  35                 ret = -1;
  36
  37         fprintf(stderr, "  ");
  38         vfprintf(stderr, fmt, ap);
  39
  40         fprintf(stderr, "\n");
  41         exit(ret);
  42 }
  43
  44 void __die(const char *fmt, ...)
  45 {
  46         va_list ap;
  47
  48         va_start(ap, fmt);
  49         __vdie(fmt, ap);
  50         va_end(ap);
  51 }
  52
  53 void __weak die(const char *fmt, ...)
  54 {
  55         va_list ap;
  56
  57         va_start(ap, fmt);
  58         __vdie(fmt, ap);
  59         va_end(ap);
  60 }
  61
  62 void __vwarning(const char *fmt, va_list ap)
  63 {
  64         if (errno)
  65                 perror("trace-cmd");
  66         errno = 0;
  67
  68         fprintf(stderr, "  ");
  69         vfprintf(stderr, fmt, ap);
  70
  71         fprintf(stderr, "\n");
  72 }
  73
  74 void __warning(const char *fmt, ...)
  75 {
  76         va_list ap;
  77
  78         va_start(ap, fmt);
  79         __vwarning(fmt, ap);
  80         va_end(ap);
  81 }
  82
  83 void __weak warning(const char *fmt, ...)
  84 {
  85         va_list ap;
  86
  87         va_start(ap, fmt);
  88         __vwarning(fmt, ap);
  89         va_end(ap);
  90 }
  91
  92 void __vpr_stat(const char *fmt, va_list ap)
  93 {
  94         vprintf(fmt, ap);
  95         printf("\n");
  96 }
  97
  98 void __pr_stat(const char *fmt, ...)
  99 {
 100         va_list ap;
 101
 102         va_start(ap, fmt);
 103         __vpr_stat(fmt, ap);
 104         va_end(ap);
 105 }
 106
 107 void __weak vpr_stat(const char *fmt, va_list ap)
 108 {
 109         __vpr_stat(fmt, ap);
 110 }
 111
 112 void __weak pr_stat(const char *fmt, ...)
 113 {
 114         va_list ap;
 115
 116         va_start(ap, fmt);
 117         __vpr_stat(fmt, ap);
 118         va_end(ap);
 119 }
 120
 121 void __weak *malloc_or_die(unsigned int size)
 122 {
 123         void *data;
 124
 125         data = malloc(size);
 126         if (!data)
 127                 die("malloc");
 128         return data;
 129 }