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1 /* Copyright (C) 2009-2020 Free Software Foundation, Inc.
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2 Contributed by Richard Henderson <rth@redhat.com>.
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3
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4 This file is part of the GNU Transactional Memory Library (libitm).
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5
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6 Libitm is free software; you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License as published by
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8 the Free Software Foundation; either version 3 of the License, or
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9 (at your option) any later version.
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10
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11 Libitm is distributed in the hope that it will be useful, but WITHOUT ANY
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12 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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13 FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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14 more details.
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15
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16 Under Section 7 of GPL version 3, you are granted additional
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17 permissions described in the GCC Runtime Library Exception, version
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18 3.1, as published by the Free Software Foundation.
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19
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20 You should have received a copy of the GNU General Public License and
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21 a copy of the GCC Runtime Library Exception along with this program;
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22 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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23 <http://www.gnu.org/licenses/>. */
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24
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25 #include "libitm_i.h"
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26 #include <stdarg.h>
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27 #include <stdio.h>
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28
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29 namespace GTM HIDDEN {
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30
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31 static void
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32 gtm_verror (const char *fmt, va_list list)
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33 {
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34 fputs ("\nlibitm: ", stderr);
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35 vfprintf (stderr, fmt, list);
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36 fputc ('\n', stderr);
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37 }
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38
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39 void
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40 GTM_error (const char *fmt, ...)
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41 {
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42 va_list list;
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43
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44 va_start (list, fmt);
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45 gtm_verror (fmt, list);
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46 va_end (list);
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47 }
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48
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49 void
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50 GTM_fatal (const char *fmt, ...)
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51 {
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52 va_list list;
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53
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54 va_start (list, fmt);
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55 gtm_verror (fmt, list);
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56 va_end (list);
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57
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58 exit (EXIT_FAILURE);
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59 }
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60
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61 void *
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62 xmalloc (size_t size, bool separate_cl)
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63 {
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64 void *r;
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65 #ifdef HAVE_POSIX_MEMALIGN
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66 if (separate_cl)
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67 {
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68 if (posix_memalign (&r, HW_CACHELINE_SIZE, size))
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69 GTM_fatal ("Out of memory allocating %lu bytes aligned on cache line",
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70 (unsigned long) size);
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71 }
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72 else
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73 #endif
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74 {
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75 r = malloc (size);
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76 if (r == 0)
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77 GTM_fatal ("Out of memory allocating %lu bytes",
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78 (unsigned long) size);
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79 }
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80 return r;
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81 }
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82
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83 void *
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84 xcalloc (size_t size, bool separate_cl)
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85 {
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86 // TODO Use posix_memalign if separate_cl is true, or some other allocation
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87 // method that will avoid sharing cache lines with data used by other
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88 // threads.
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89 void *r = calloc (1, size);
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90 if (r == 0)
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91 GTM_fatal ("Out of memory allocating %lu bytes", (unsigned long) size);
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92 return r;
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93 }
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94
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95 void *
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96 xrealloc (void *old, size_t size, bool separate_cl)
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97 {
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98 // TODO Use posix_memalign if separate_cl is true, or some other allocation
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99 // method that will avoid sharing cache lines with data used by other
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100 // threads.
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101 void *r = realloc (old, size);
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102 if (r == 0)
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103 GTM_fatal ("Out of memory allocating %lu bytes", (unsigned long) size);
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104 return r;
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105 }
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106
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107 } // namespace GTM
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