LXR linux/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
  28void __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
  44void __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
  53void __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
  62void __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
  74void __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
  83void __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
  92void __vpr_stat(const char *fmt, va_list ap)
  93{
  94        vprintf(fmt, ap);
  95        printf("\n");
  96}
  97
  98void __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
 107void __weak vpr_stat(const char *fmt, va_list ap)
 108{
 109        __vpr_stat(fmt, ap);
 110}
 111
 112void __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
 121void __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}
 130