| 1 | /* Copyright (C) 2003-2024 Free Software Foundation, Inc. |
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| 2 | This file is part of the GNU C Library. |
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| 3 | |
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| 4 | The GNU C Library is free software; you can redistribute it and/or |
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| 5 | modify it under the terms of the GNU Lesser General Public |
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| 6 | License as published by the Free Software Foundation; either |
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| 7 | version 2.1 of the License, or (at your option) any later version. |
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| 8 | |
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| 9 | The GNU C Library 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 GNU |
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| 12 | Lesser 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 Lesser General Public |
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| 15 | License along with the GNU C Library; if not, see |
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| 16 | <https://www.gnu.org/licenses/>. */ |
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| 17 | |
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| 18 | #include <pthread.h> |
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| 19 | #include <stdio.h> |
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| 20 | #include <stdlib.h> |
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| 21 | #include <dso_handle.h> |
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| 22 | |
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| 23 | |
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| 24 | extern int val; |
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| 25 | |
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| 26 | |
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| 27 | static void |
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| 28 | prepare (void) |
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| 29 | { |
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| 30 | ++val; |
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| 31 | } |
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| 32 | |
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| 33 | static void |
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| 34 | parent (void) |
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| 35 | { |
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| 36 | val *= 4; |
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| 37 | } |
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| 38 | |
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| 39 | static void |
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| 40 | child (void) |
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| 41 | { |
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| 42 | val *= 8; |
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| 43 | } |
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| 44 | |
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| 45 | static void |
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| 46 | __attribute__ ((constructor)) |
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| 47 | init (void) |
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| 48 | { |
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| 49 | printf (format: "dsohandle = %p\n" , __dso_handle); |
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| 50 | |
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| 51 | if (pthread_atfork (prepare: prepare, parent: parent, child: child) != 0) |
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| 52 | { |
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| 53 | puts (s: "init: atfork failed" ); |
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| 54 | exit (1); |
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| 55 | } |
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| 56 | } |
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| 57 | |
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