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annotate tests/test-get-rusage-data.c @ 40196:e63f5d3edab5

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relocatable-prog: Update documentation. * doc/relocatable-maint.texi (Supporting Relocation): Update to match the recent changes.
author Bruno Haible <bruno@clisp.org>
date Sun, 24 Feb 2019 01:49:15 +0100
parents b06060465f09
children
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3a0a66848038 Tests for module 'get-rusage-data'.
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1 /* Test of getter for RLIMIT_DATA.
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2 Copyright (C) 2011-2019 Free Software Foundation, Inc.
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3
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4 This program is free software: you can redistribute it and/or modify
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5 it under the terms of the GNU General Public License as published by
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6 the Free Software Foundation; either version 3 of the License, or
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7 (at your option) any later version.
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8
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9 This program is distributed in the hope that it will be useful,
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10 but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 GNU General Public License for more details.
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13
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14 You should have received a copy of the GNU General Public License
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15 along with this program. If not, see <https://www.gnu.org/licenses/>. */
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16
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17 #include <config.h>
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18
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19 #include "resource-ext.h"
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20
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21 #include <stdio.h>
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22 #include <stdlib.h>
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23
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24 #include "macros.h"
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25
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26 void *memchunk1;
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27 void *memchunk2;
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28
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29 int
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30 main ()
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31 {
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32 uintptr_t value1, value2, value3;
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33
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34 value1 = get_rusage_data ();
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35
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36 memchunk1 = malloc (0x88);
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37
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38 value2 = get_rusage_data ();
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39
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40 memchunk2 = malloc (0x281237);
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41
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42 value3 = get_rusage_data ();
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43
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44 if (value1 == 0 && value2 == 0 && value3 == 0)
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45 {
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46 fprintf (stderr, "Skipping test: no way to determine data segment size\n");
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47 return 77;
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48 }
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49 else
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50 {
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51 /* The data segment size is positive, except possibly at the beginning. */
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52 ASSERT (value2 > 0);
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53
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54 /* Allocating memory should not decrease the data segment size. */
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55 ASSERT (value2 >= value1);
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56 ASSERT (value3 >= value2);
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57
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58 #if !(__GLIBC__ == 2 || (defined __APPLE__ && defined __MACH__) || defined __DragonFly__ || defined __OpenBSD__ || defined _WIN32 || defined __CYGWIN__)
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59 /* Allocating 2.5 MB of memory should increase the data segment size. */
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60 ASSERT (value3 > value1);
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61 #endif
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62
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63 return 0;
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64 }
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65 }